Endoscope tip and endoscope

Abstract

The embodiment of the utility model provides a kind of end of endoscope and endoscope, it is related to endoscope field.The end of endoscope includes end head seat body, nozzle and positioning locking piece, axial hole and radial hole are provided on end head seat body, axial hole is along the axial direction of end head seat body and is set, radial hole is along the radial surface of end head seat body and is set, radial hole is communicated with axial hole, nozzle is installed in axial hole, and positioning part is provided on nozzle;Positioning locking piece is installed in radial hole, and one end of positioning locking piece passes through radial hole and enters axial hole and is positioned with the positioning part of nozzle Realization is positioned and connected.Because positioning locking piece can only rotate or move along radial hole in radial hole, therefore, when positioning locking piece and the positioning part of nozzle are positioned and connected cooperation, nozzle can not rotate or move again, it is guaranteed that the position of nozzle is always consistent after being positioned and connected with positioning locking piece, and the flushing effect of nozzle aiming camera and illuminating light source is improved.

Description

Technical Field

[0001] This utility model relates to the field of endoscopes, and more specifically, to an endoscope tip and an endoscope. Background Technology

[0002] Endoscopes, as a common medical device, offer advantages in visual examination and precise treatment. When using an endoscope, a thin insertion section is inserted into the patient's body through a natural opening or surgical incision. A camera is mounted at the tip of the insertion section, allowing real-time acquisition of images of the patient's internal tissues as the section moves within the body. However, the tip of the insertion section is prone to adhering to bodily fluids or blood during its movement, making it difficult for the camera to clean properly and affecting the observation results.

[0003] Currently, in order to solve the problem that the camera is easily blocked by bodily fluids or blood, a nozzle is installed at the end of the insertion part. The nozzle delivers clean water from the outside through a water pipe to rinse the camera and ensure a clear field of view. However, when the nozzle is assembled to the end of the insertion part, there is insufficient assembly and positioning accuracy, which causes the spray angle of the nozzle to change and results in poor rinsing effect. Utility Model Content

[0004] This invention provides an endoscope tip and an endoscope that can solve the above-mentioned problems.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] An embodiment of this utility model provides an endoscope tip, which includes:

[0007] The end seat has an axial hole and a radial hole, which are connected to the axial hole.

[0008] The nozzle is installed in the axial hole and has a positioning part;

[0009] The positioning and locking component is installed in the radial hole and is used to position and cooperate with the positioning part so that the nozzle can be accurately installed in the axial hole.

[0010] Optionally, the positioning part is a spiral groove provided on the outer wall of the nozzle, and the inner end of the positioning locking member is engaged in the spiral groove and can slide along the spiral groove.

[0011] Optionally, the spiral chute includes a spiral section and a straight section, the spiral section and the straight section are connected, and a groove is provided at the top end of the spiral section, the depth of the groove being greater than the groove depth of the spiral chute.

[0012] The straight section is set along the axial direction of the nozzle, and the groove depth of the straight section gradually increases from one end to the other end. The groove depth at the end where the straight section connects to the spiral section is smaller than that at the other end.

[0013] Optionally, the groove width of the straight section gradually decreases from one end to the other, and the groove width at the end where the straight section connects to the spiral section is smaller than that at the other end.

[0014] Optionally, the positioning locking element includes a contact part and a pressing part, the contact part is connected to the pressing part, a portion of the contact part is engaged in the spiral groove, and the pressing part is accommodated in the radial hole.

[0015] Optionally, the radial hole is a stepped hole, which includes a large hole and a small hole. One end of the small hole is connected to the axial hole, and the other end of the small hole is connected to the large hole. The wall of the large hole is provided with an internal thread.

[0016] The outer wall of the positioning and locking component is provided with external threads, which are compatible with internal threads.

[0017] Optionally, the nozzle includes a plug section and an exposed section, the exposed section being connected to and communicating with the end of the plug section, the angle between the exposed section and the plug section being less than 90°, and the internal channel opening of the exposed section gradually narrowing into a long strip shape.

[0018] Optionally, the end cap is also provided with a detection hole and an observation hole, with a light source arranged in the detection hole and a camera arranged in the observation hole.

[0019] Optionally, the endoscope tip also includes an end cap, which is connected to the end cap body;

[0020] The end cover has a protrusion that is higher than the end face, and the protrusion is distributed around the circumference of the probe hole and / or observation hole.

[0021] An embodiment of this utility model also provides an endoscope, including the endoscope tip.

[0022] The beneficial effects of this utility model embodiment:

[0023] The endoscope tip includes a tip body, a nozzle, and a positioning and locking component. The tip body has an axial hole and a radial hole, which are connected. The nozzle is installed in the axial hole and has a positioning part. The positioning and locking component is installed in the radial hole, and the positioning and locking component is positioned and locked with the positioning part. Because the positioning and locking component can only rotate or move along the radial hole, after the positioning and locking component is positioned and locked with the positioning part of the nozzle, the nozzle position remains consistent and can be precisely assembled into the axial hole of the tip body. This improves the stability and positioning accuracy of the nozzle installation, thereby ensuring the washing effect on the camera.

[0024] The endoscope includes an endoscope tip, which has all the functions of an endoscope tip. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model 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.

[0026] Figure 1 This is a schematic diagram of the first view of the endoscope tip provided in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the second view of the endoscope tip provided in an embodiment of the present invention;

[0028] Figure 3 This is a three-dimensional structural diagram of the end seat provided in an embodiment of the present utility model;

[0029] Figure 4 This is a cross-sectional view of the end seat body along the radial hole provided in an embodiment of the present invention;

[0030] Figure 5 This is a first-view schematic diagram of the nozzle provided in an embodiment of the present invention;

[0031] Figure 6 This is a second-view schematic diagram of the nozzle provided in an embodiment of the present invention;

[0032] Figure 7 This is a third-view schematic diagram of the nozzle provided in an embodiment of the present invention;

[0033] Figure 8 This is a fourth-view schematic diagram of the nozzle provided in an embodiment of the present invention;

[0034] Figure 9 This is a schematic diagram of the positioning and locking component provided in an embodiment of the present utility model;

[0035] Figure 10 This is a schematic diagram of the positioning and locking component and the nozzle positioning and cooperating structure provided in the embodiments of this utility model.

[0036] Icons: 1-End seat; 10-Axial hole; 11-Radial hole; 111-Large hole; 112-Small hole; 12-Illumination hole; 13-Observation hole; 14-Infusion hole; 15-Instrument hole; 2-Nozzle; 20-Plug-in section; 21-Exposed section; 22-Helical groove; 221-Helical section; 222-Straight section; 223-Settling groove; 3-Positioning locking element; 30-Contact part; 31-Pressure part; 4-End cover; 40-Protrusion; 5-Light source; 6-Camera. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to 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 utility model product is usually placed during use, they are only for the convenience of describing this utility model 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 utility model.

[0041] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0042] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Unless otherwise explicitly specified and limited, terms such as "setup" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0045] As a common medical device, the endoscope requires a thin insertion part to be inserted into the patient's body through a natural opening or surgical incision. The tip of the insertion part is equipped with a camera, so the insertion part can acquire real-time images of the patient's internal tissues as it moves through the body. However, the tip of the insertion part is prone to adhering to bodily fluids or blood during its movement, making it impossible for the camera to capture images cleanly and affecting the observation results.

[0046] To address the issue of cameras being easily obscured by bodily fluids or blood, thus affecting image quality, technicians devised a solution: installing a nozzle at the insertion end. This nozzle, via a water pipe, delivers clean water from outside to rinse the camera, ensuring a clear field of view. However, insufficient precision in the nozzle's assembly at the insertion end causes it to rotate when water is flowing through, altering the spray angle and causing it to deviate from the camera's orientation, resulting in ineffective rinsing. Furthermore, the nozzle is prone to clogging or deformation during use, requiring disassembly, repair, or replacement. The existing nozzle-insertion end assembly is complex, making both disassembly and assembly cumbersome and difficult.

[0047] In view of this, an embodiment of the present invention provides an endoscope tip and an endoscope. The endoscope tip can be used in an endoscope. Therefore, both the endoscope tip and the endoscope with the tip can solve the above problems. The following will describe them in detail.

[0048] Please refer to Figures 1 to 3 The endoscope tip includes a tip body 1, a nozzle 2, and a positioning and locking member 3. The tip body 1 is provided with an axial hole 10 and a radial hole 11. The axial hole 10 is opened along the axial direction of the tip body 1, and the radial hole 11 is opened along the radial surface of the tip body 1. The radial hole 11 is connected to the axial hole 10. The nozzle 2 is installed in the axial hole 10 and is provided with a positioning part. The positioning and locking member 3 is installed in the radial hole 11. One end of the positioning and locking member 3 passes through the radial hole 11 and enters the axial hole 10 to achieve positioning connection with the positioning part of the nozzle 2.

[0049] Since the positioning locking part 3 can only rotate or move along the radial hole 11 within the radial hole 11, once the positioning locking part 3 is positioned and connected with the positioning part of the nozzle 2, the nozzle 2 can no longer rotate or move. This ensures that the position of the nozzle 2 remains consistent after being positioned and connected with the positioning locking part 3, thus improving the firmness of the nozzle 2 installation and its stability after water is introduced. It also ensures that the outlet of the nozzle 2 is always aligned with the camera 6 and the lighting source 5, ensuring the rinsing effect. When the positioning part of the nozzle 2 is not positioned and connected with the positioning locking part 3, the nozzle 2 can rotate, which allows the user to clearly see whether the assembly is correct. Only when the positioning part of the nozzle 2 is precisely positioned and connected with the positioning locking part 3 can it not rotate.

[0050] refer to Figure 3 and Figure 4 In this embodiment, the end seat 1 is cylindrical in shape. The axial hole 10 passes through both end faces of the end seat 1. The axial hole 10 is a stepped hole to facilitate the installation of the nozzle 2. The nozzle 2 is inserted into the axial hole 10, and the lower end of the nozzle 2 abuts against the stepped surface to prevent the nozzle 2 from moving downward in the axial direction.

[0051] The radial hole 11 is opened along the radial surface of the end seat 1. The radial hole 11 is also a stepped hole. The stepped hole includes a large hole 111 and a small hole 112. One end of the small hole 112 is connected to the axial hole 10, and the other end of the small hole 112 is connected to the large hole 111. The radial hole 11 is used to accommodate the positioning locking member 3. By setting the stepped surface, excessive squeezing between the positioning locking member 3 and the positioning part of the nozzle 2 can be avoided, so that the positioning fit between the two is always maintained at an appropriate connection force.

[0052] refer to Figures 5 to 7 In this embodiment, the nozzle 2 includes a plug section 20 and an exposed section 21. The exposed section 21 is connected to the end of the plug section 20. The exposed section 21 and the plug section 20 can be integrally formed. Both the exposed section 21 and the plug section 20 have through channels inside, through which clean water is delivered to rinse the camera 6 and the lighting source 5.

[0053] The outer wall of the nozzle 2 insertion section 20 is provided with a spiral groove 22, and the inner end of the positioning locking member 3 is locked in the spiral groove 22 and can slide along the spiral groove 22.

[0054] Specifically, the spiral groove 22 includes a spiral section 221 and a straight section 222, which are connected and have smooth transitions at their edges. The spiral section 221 spirals around the axial direction of the insertion section 20, while the straight section 222 runs directly along the axial direction of the insertion section 20, with its end penetrating the lower end face of the insertion section 20. A recessed groove 223 is provided at the top end of the spiral section 221, with a depth greater than that of the spiral groove 22. When the inner end of the positioning locking member 3 slides into the recessed groove 223, the nozzle 2 locks with the positioning locking member 3, preventing the nozzle 2 from moving or rotating axially.

[0055] refer to Figure 8 and Figure 6 The groove depth of the straight section 222 gradually increases from one end to the other. The groove depth at the end where the straight section 222 connects to the spiral section 221 is smaller than the groove depth at the other end. This gradual change in groove depth of the straight section 222 guides the positioning locking element 3, facilitating its entry into the spiral groove 22. Alternatively, the groove width of the straight section 222 can also gradually decrease from one end to the other, with the groove width at the end where the straight section 222 connects to the spiral section 221 being smaller than the groove width at the other end. This provides a wider range of guidance for the positioning locking element 3 as it enters the spiral groove 22.

[0056] In this embodiment, the angle β between the exposed section 21 and the insertion section 20 of the nozzle 2 is less than 90°, so that the outlet of the nozzle 2 faces the side with the camera 6. This not only allows for more efficient rinsing of the camera 6, but also prevents body fluids or blood in the body cavity from easily entering the internal channel of the nozzle 2, ensuring the cleanliness of the internal channel of the nozzle 2 and avoiding the possibility of the nozzle 2 becoming clogged.

[0057] In this embodiment, the internal channel of the exposed section 21 of the nozzle 2 gradually narrows into a long strip shape from the insertion section 20 to the water outlet. The long strip shape of the water outlet allows water to spray out over a wider range, so as to thoroughly rinse the camera 6 and the lighting source 5. Moreover, the narrowing of the water outlet helps to increase the water pressure, thereby further improving the cleaning power of the camera 6 and the lighting source 5.

[0058] refer to Figure 9 and Figure 10The positioning locking component 3 includes a contact portion 30 and a pressing portion 31. The contact portion 30 is connected to the pressing portion 31, and a portion of the contact portion 30 is engaged in the spiral groove 22. The pressing portion 31 is accommodated in the radial hole 11. In this embodiment, the positioning locking component 3 can be a ball screw with a protruding head. The protruding end of the ball screw passes through the small hole 112 of the radial hole 11 and is slidably accommodated in the spiral groove 22. The outer wall of the ball screw body has an external thread, and the wall of the large hole 111 of the radial hole 11 is provided with an internal thread. The external thread and the internal thread are adapted to each other, so that the ball screw can be threadedly connected to the end seat 1.

[0059] Refer again Figure 2 and Figure 3 The end seat 1 is also provided with a detection hole 12 and an observation hole 13. An illumination source 5 is arranged in the detection hole 12, and a camera 6 is arranged in the observation hole 13. The illumination source 5 is used to provide a bright environment for the camera 6 to take pictures.

[0060] In this embodiment, the end-cap 1 is also provided with an infusion port 14 and an instrument port 15. The infusion port 14 is provided with an infusion tube, and the instrument port 15 is provided with a working channel. The infusion tube can be used to deliver water to flush the blood or body fluids in the patient's body cavity, so as to make the lesion clearer. The working channel can be used to place instruments into the patient's body, which facilitates doctors to perform various examinations and treatments, and improves surgical efficiency and safety.

[0061] In this embodiment, an end cover 4 is detachably connected to the end seat 1. The end cover 4 covers the outer end of the end seat 1 to prevent the camera 6 from falling out of the observation hole 13. In addition, the outer end face of the end cover 4 is provided with protrusions 40 that are higher than the rest of the end face. These protrusions 40 are distributed around the circumference of the detection hole 12 and the observation hole 13, so that after the nozzle 2 sprays water, cleaning water is prevented from accumulating on the end face where the camera 6 and the illumination source 5 are located.

[0062] It is worth mentioning that the end cap 4 is also provided with multiple holes, which correspond one-to-one with and fit the holes on the end seat 1.

[0063] In this embodiment, the operation of inserting the nozzle 2 into the axial hole 10 of the end seat 1 is as follows: First, rotate the positioning locking member 3 so that the inner end of the positioning locking member 3 enters the axial hole 10 at an appropriate length. Then, align the spiral groove 22 of the nozzle 2 with the straight section 222 with the inner end of the positioning locking member 3, and insert the inner end of the positioning locking member 3 into the straight section 222 of the spiral groove 22. Press down the nozzle 2 until the inner end of the positioning locking member 3 reaches the junction of the spiral section 221 and the straight section 222. Then, while rotating the nozzle 2, press down the nozzle 2 so that the inner end of the positioning locking member 3 slides in the spiral section 221 until the inner end of the positioning locking member 3 is inserted into the recess 223. The positioning locking member 3 and the nozzle 2 are precisely positioned and connected. Tighten the positioning locking member 3 again so that the inner end of the positioning locking member 3 is pressed into the recess 223.

[0064] Conversely, the operation of removing nozzle 2 from the axial hole 10 of end seat 1 is as follows: First, loosen the positioning locking member 3 so that the inner end of the positioning locking member 3 can slide from the groove 223 into the spiral section 221 of the spiral groove 22. Then, rotate nozzle 2 in the opposite direction and pull nozzle 2 outward at the same time so that the inner end of the positioning locking member 3 slides out after passing through the spiral section 221 and the straight section 222 of the spiral groove 22. The positioning locking member 3 and nozzle 2 are separated, and nozzle 2 can be directly pulled out from the axial hole 10.

[0065] The endoscope tip of this embodiment is easy to assemble and disassemble, has high assembly precision, and provides good rinsing effect for the camera 6 and the illumination source 5.

[0066] An embodiment of this utility model also provides an endoscope, including the aforementioned endoscope tip. Connecting the tip to the end of the endoscope insertion portion ensures that the endoscope always has a clear field of view.

[0067] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An endoscope tip, characterized in that, include: End seat (1), the end seat (1) is provided with an axial hole (10) and a radial hole (11), the radial hole (11) and the axial hole (10) are connected; Nozzle (2), the nozzle (2) is installed in the axial hole (10), and the nozzle (2) is provided with a positioning part; Positioning locking member (3) is installed in the radial hole (11) and is used to position and cooperate with the positioning part so that the nozzle (2) can be accurately installed in the axial hole (10).

2. The endoscope tip according to claim 1, characterized in that, The positioning part is a spiral groove (22) provided on the outer wall of the nozzle (2), and the inner end of the positioning locking member (3) is engaged in the spiral groove (22) and can slide along the spiral groove (22).

3. The endoscope tip according to claim 2, characterized in that, The spiral groove (22) includes a spiral section (221) and a straight section (222), the spiral section (221) and the straight section (222) are connected, and a sink groove (223) is provided at the top end of the spiral section (221), the depth of the sink groove (223) is greater than the groove depth of the spiral groove (22); The straight section (222) is arranged along the axial direction of the nozzle (2), and the groove depth of the straight section (222) gradually increases from one end to the other end. The groove depth at the end where the straight section (222) is connected to the spiral section (221) is smaller than that at the other end.

4. The endoscope tip according to claim 3, characterized in that, The groove width of the straight section (222) gradually decreases from one end to the other, and the groove width at the end where the straight section (222) connects to the spiral section (221) is smaller than that at the other end.

5. The endoscope tip according to claim 2, characterized in that, The positioning locking member (3) includes a contact part (30) and a pressing part (31). The contact part (30) is connected to the pressing part (31). A portion of the contact part (30) is engaged in the spiral groove (22). The pressing part (31) is accommodated in the radial hole (11).

6. The endoscope tip according to claim 1, characterized in that, The radial hole (11) is a stepped hole, which includes a large hole (111) and a small hole (112). One end of the small hole (112) is connected to the axial hole (10), and the other end of the small hole (112) is connected to the large hole (111). The wall of the large hole (111) is provided with an internal thread. The outer wall of the positioning locking member (3) is provided with an external thread, which is adapted to the internal thread.

7. The endoscope tip according to claim 1, characterized in that, The nozzle (2) includes a plug section (20) and an exposed section (21). The exposed section (21) is connected to the end of the plug section (20) and communicates with it. The angle between the exposed section (21) and the plug section (20) is less than 90°, and the internal channel opening of the exposed section (21) gradually narrows into a long strip shape.

8. The endoscope tip according to any one of claims 1 to 7, characterized in that, The end seat (1) is also provided with a detection hole (12) and an observation hole (13). The detection hole (12) is provided with an illumination source (5), and the observation hole (13) is provided with a camera (6).

9. The endoscope tip according to claim 8, characterized in that, The endoscope tip also includes an end cap (4), which is connected to the end cap base (1); The end cover (4) has a protrusion (40) that is higher than the end face, and the protrusion (40) is distributed around the circumference of the probe hole (12) and / or the observation hole (13).

10. An endoscope, characterized in that, Includes the endoscope tip as described in any one of claims 1 to 9.

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