Front-end seat, front-end assembly, insertion part, and endoscope
By designing the insertion protrusion on the front end of the endoscope, the problem of unsmooth insertion of the insertion part in the human cavity is solved, and more efficient insertion action and lower stress response are achieved, ensuring the smooth entry and exit of the surgical instruments .
Patent Information
- Application Number
- CN202420846853.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-23
AI Technical Summary
The insertion of the endoscopic insertion part in the human cavity is not smooth enough, resulting in the patient being prone to stress response during the operation.
A front end seat has a structure in which an insertion projection is provided on the distal end surface. The radial size of the insertion projection is smaller, making it easier to insert into the human cavity, and the barrier to the outlet of the instrument channel is reduced by the design of the insertion projection. .
By reducing the radial size of the front end of the insertion part, the smoothness of the insertion part in the human cavity is improved, the generation of stress response is reduced, and the surgical instrument can enter and exit smoothly.
Smart Images
Figure CN222425957U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical devices, and in particular to a front end seat, a front end assembly, an insertion portion and an endoscope. Background Art
[0002] As a medical device that can directly reach the lesion, endoscopes have been increasingly widely used in the diagnosis and treatment of diseases. In the specific operation process, the endoscope is inserted into the human body cavity through the insertion part, and the front end of the insertion part is used to obtain image information of the affected part.
[0003] In the related art, the corners of the front end of the insertion part are formed with guiding arc surfaces to facilitate the insertion of the insertion part into the human body cavity. However, in practice, the insertion of the insertion part is still not smooth enough, and the patient is prone to stress reaction during the operation. Utility Model Content
[0004] The present application provides a front end seat, a front end assembly, an insertion portion and an endoscope, which are used to at least solve the problem that the insertion action of the insertion portion in the related art is not smooth enough.
[0005] In the first aspect, the embodiment of the present application provides a connector for use in a front end assembly of an endoscope. The front end seat has an inner cavity and an instrument port provided on its distal end surface, the inner cavity is used to install the functional components of the front end assembly and the instrument tube, the instrument port is connected to the inner cavity, and is used to cooperate with the instrument tube to form an instrument channel outlet; the front end seat also has an insertion protrusion provided on its distal end surface, along the axial direction of the front end seat, the orthographic projection of the insertion protrusion on the plane where the distal end surface is located is located within the distal end surface and avoids the instrument port.
[0006] In some embodiments of the present application, the inner cavity includes an installation space, which is arranged along the axial direction of the front end seat corresponding to the insertion protrusion and extends into the insertion protrusion, and the installation space is used to install the camera and / or light source of the front end component.
[0007] In some embodiments of the present application, the central axis of the insertion protrusion and the central axis of the instrument port are distributed along the same radial direction of the front end seat.
[0008] In some embodiments of the present application, a portion of the insertion protrusion close to the edge of the distal surface is aligned with the edge of the distal surface.
[0009] In some embodiments of the present application, the insertion protrusion is a rotating body, and its rotation axis is distributed along the axial direction of the front end seat.
[0010] In some embodiments of the present application, there is a smooth transition between the top surface of the insertion protrusion and its side surface.
[0011] In some embodiments of the present application, there is a smooth transition between the insertion protrusion and the distal surface.
[0012] In some embodiments of the present application, the distal surface of the front end seat is a closed surface in the area except the instrument port, and the front end seat has a light-transmitting area. Along the axial direction of the front end seat, the light-transmitting area is arranged corresponding to the installation space of the camera and the light source of the front end component.
[0013] In some embodiments of the present application, the front end seat has a mounting groove arranged on its outer circumference, and the mounting groove is used to install the distal end of the traction rope.
[0014] In some embodiments of the present application, the front end seat is an integrally formed transparent structural member.
[0015] In a second aspect, an embodiment of the present application provides a front end assembly, including the front end seat described in the first aspect of the embodiment of the present application.
[0016] In a third aspect, an embodiment of the present application provides an insertion portion, comprising the front end component described in the second aspect of the embodiment of the present application.
[0017] In a fourth aspect, an embodiment of the present application provides an endoscope, comprising a handle and the insertion portion described in the third aspect of the embodiment of the present application, wherein the handle is connected to the insertion portion.
[0018] The technical solution adopted in the embodiments of the present application can achieve the following beneficial effects:
[0019] In the front end seat disclosed in the embodiment of the present application, an insertion protrusion is provided on its distal surface, and the orthographic projection of the insertion protrusion on the plane where the distal surface is located is restricted within the distal surface. In this way, the radial dimension of the insertion protrusion first inserted into the human body cavity is smaller, which is more conducive to insertion and opening the cavity wall of the cavity, thereby reducing the resistance of the front end component entering the human body cavity, and also reducing the generation of stress response.
[0020] At the same time, the orthographic projection of the insertion protrusion on the distal surface also avoids the instrument port, so that the insertion protrusion can avoid blocking the exit of the instrument channel, which is conducive to the smooth entry and exit of surgical instruments from the instrument port. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.
[0022] In the attached picture:
[0023] Figure 1 A schematic diagram of the structure of a front-end component disclosed in some embodiments of the present application;
[0024] Figure 2 A schematic diagram of the structure of a front end seat disclosed in some embodiments of the present application;
[0025] Figure 3 A schematic structural diagram of a front end assembly disclosed in some embodiments of the present application with a front end seat cut away;
[0026] Figure 4 Another structural schematic diagram of the front end assembly disclosed in some embodiments of the present application with the front end seat cut away;
[0027] Figure 5 A front view of a front end seat disclosed in some embodiments of the present application;
[0028] Figure 6 This is a schematic structural diagram of the front-end components disclosed in some embodiments of the present application from another perspective.
[0029] Description of reference numerals:
[0030] 100-front end seat, 100a-distal end surface,
[0031] 110 - instrument opening, 120 - insertion protrusion, 120a - top surface, 120b - side surface, 130 - first mounting groove, 140 - second mounting groove, 150 - third mounting groove,
[0032] 200- camera, 300- light source, 400- circuit board, 500- instrument tube, 600- traction rope, 700- support block. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.
[0034] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of the endoscope and its components and accessories relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".
[0035] In order to facilitate the understanding of the front end seat, front end assembly, insertion part and endoscope provided in the embodiments of the present application, the relevant technologies are first introduced in conjunction with the application scenarios.
[0036] During use of the endoscope of related technology, even if the size of the insertion part has been made very small, it will still encounter considerable resistance when entering the human body cavity. Specifically, the patient is prone to stress response during the operation, especially for young patients.
[0037] After research, the inventors found that the above problems are mainly caused by the fact that the insertion part is still relatively large relative to some narrow cavities of the human body. Specifically, there are many narrow areas in the human body's cavities. For example, kidney stone surgery requires insertion of the scope through the urethra, and the passage size of the urethra is extremely small; in colonoscopy, the passage size at the folds of the large intestine is also very small. It can be seen that the passage size of the narrow area in the human body's cavity is smaller than the radial width of the insertion part, which causes the insertion action to be obstructed, and it is easy to scratch the human body's cavity and cause a stress response.
[0038] In view of this, an embodiment of the present application provides a front end seat, which is applied to a front end component of an endoscope.
[0039] See also Figure 1 to Figure 6 The front end seat 100 disclosed in the embodiment of the present application has an inner cavity and an instrument port 110 arranged on its distal surface 100a. The inner cavity is used to install functional components of the front end assembly and the instrument tube 500. The instrument port 110 is connected to the inner cavity and is used to cooperate with the instrument tube 500 to form an instrument channel outlet.
[0040] It should be understood that the front end seat 100 is the basic structure of the front end assembly of the endoscope insertion part, that is, it serves as the installation basis for other components on the front end assembly. The front end seat 100 provides installation space for the functional components of the front end assembly through its inner cavity. These functional components include the camera 200, the light source 300 (usually LED lamp beads), the circuit board 400, the instrument tube 500, etc. The front end seat 100 also provides protection for these functional components to a certain extent.
[0041] The endoscope has an instrument channel extending from the handle to the front end assembly of the insertion part. The instrument channel is mainly formed by an instrument tube 500. The distal end of the instrument tube 500 is installed in the front end seat 100 and communicates with the instrument port 110. In this way, the surgical instrument during the operation can be sent from the instrument port 110 on the handle to the instrument port 110 through the instrument channel, so that the operation and other operations can be performed while the camera 200 acquires images. Of course, the instrument channel can also be used as a channel for aspirating body fluids such as effusion.
[0042] Based on the above, it can be seen that the front end assembly of the endoscope contains a large number of devices, which makes it difficult to further miniaturize the front end size of the insertion part, which is also the fundamental reason why the insertion action of the insertion part is hindered.
[0043] In view of this, the front end seat 100 disclosed in the embodiment of the present application also has an insertion protrusion 120 arranged on its distal surface 100a. Along the axial direction of the front end seat 100, the orthographic projection of the insertion protrusion 120 on the plane where the distal surface 100a is located is located within the distal surface 100a and avoids the instrument port 110.
[0044] It can be understood that the insertion protrusion 120 is a protruding structure that protrudes from the distal end surface 100 a of the front end seat 100 . Based on the relationship between the orthographic projection of the insertion protrusion 120 on the distal surface 100a and the distal surface 100a of the front end seat 100, the radial extension dimension of the insertion part in the front end seat 100 must be located within the contour of the edge of the distal surface 100a of the front end seat 100. In this way, the cross-sectional width of the insertion protrusion 120 must be smaller than the cross-sectional dimension of the distal surface 100a of the front end seat 100 and its proximal extension portion. In the process of inserting the insertion part into the human body cavity, the first part of the insertion part that extends into the cavity is the insertion protrusion 120, which has a smaller radial dimension, which makes it easier to insert into the cavity. As the insertion goes deeper, the cavity can be gradually expanded by the insertion protrusion 120, thereby making it easier to insert the entire front end assembly. Compared with the method of directly inserting the insertion part through the front end assembly, it is obvious that the front end seat 100 with the insertion protrusion 120 in this example will significantly reduce the resistance of the front end assembly entering the human body cavity, and can also reduce the generation of stress response.
[0045] At the same time, the orthographic projection of the insertion protrusion 120 on the distal surface 100a also avoids the instrument port 110, so that the insertion protrusion 120 can avoid blocking the exit of the instrument channel, which is conducive to the smooth entry and exit of surgical instruments from the instrument port 110.
[0046] In some embodiments of the present application, the inner cavity includes an installation space, which is arranged along the axial direction of the front end seat 100 corresponding to the insertion protrusion 120 and extends into the insertion protrusion 120. The installation space is used to install the camera 200 and / or the light source 300 of the front end component.
[0047] It should be understood that the insertion protrusion 120 occupies a certain space in front of the distal surface 100a of the front end seat 100. Under such a layout, the installation space is at least partially arranged in the insertion protrusion 120. In this way, the area where the insertion protrusion 120 is located can be used to provide the space required for assembly of the camera 200 and / or the light source 300.
[0048] It is worth mentioning that, precisely because the installation space corresponds to the insertion protrusion 120 along the axial direction of the front end seat 100, and the installation space is part of the inner cavity of the front end seat 100, the camera 200, light source 300, etc. can be assembled from the opening on the proximal side of the front end seat 100 without the need for additional openings, which simplifies the processing process of the front end seat 100 and ensures its strength.
[0049] In addition, precisely because the insertion protrusion 120 can provide installation space for the camera 200 and / or the light source 300, compared with the related art in which the part of the front end seat 100 corresponding to the camera 200 and / or the light source 300 maintains the original radial dimension profile, the part of the front end seat 100 in the circumferential direction corresponding to the insertion protrusion 120 in this example significantly reduces the overall size of the front end seat 100 due to the insertion protrusion 120, thereby reducing the overall weight of the front end seat 100 and saving costs.
[0050] For example, Figure 2 As shown, the inner cavity of the front seat 100 includes a first mounting groove 130 for mounting the camera 200 and a second mounting groove 140 for mounting the light source 300. Figure 3 and Figure 4 As shown, in this example, the first mounting groove 130 is opposite to the insertion protrusion 120, while the second mounting groove 140 is not corresponding to the insertion protrusion 120, so only the first mounting groove 130 belongs to the installation space; of course, in some other embodiments, the installation space may also include the above-mentioned second mounting groove 140.
[0051] In some embodiments of the present application, the insertion protrusion 120 is a rotating body, and its rotation axis is distributed along the axial direction of the front end seat 100. For example, see Figure 1 , the dotted line l1 shows the axial direction of the front seat 100, and the dotted line l2 shows the axial direction of the insertion protrusion 120, and the two are parallel. It should be understood that the rotating body is a structure formed by rotating around its rotation axis, and its circumferential profile is consistent, that is, along the circumference of the insertion protrusion 120, its side wall transitions smoothly along the circumference, which is conducive to the realization of the insertion action.
[0052] At the same time, the rotation axis of the insertion protrusion 120 is distributed along the axial direction of the front end seat 100, that is, the axial distribution directions of the two are parallel. In this way, the extension direction of the insertion protrusion 120 is consistent with the insertion direction of the front end of the insertion part and the shooting direction of the camera 200, which further facilitates the implementation of the insertion action.
[0053] like Figure 1 and Figure 5 As shown, the insertion protrusion 120 is cylindrical; of course, the insertion protrusion 120 can also be in other shapes such as a truncated cone.
[0054] like Figure 1As shown, in some embodiments of the present application, there is a smooth transition between the top surface 120a of the insertion protrusion 120 and its side surface 120b. It should be understood that when the insertion protrusion 120 enters the human body cavity, it will extend into the gap between the cavity walls to open the cavity, and the cavity wall in contact with the top surface 120a of the insertion protrusion 120 will slide along and slide to the side surface 120b of the insertion protrusion 120. Under such a layout, the intersection of the top surface 120a of the insertion protrusion 120 and the side surface 120b can ensure smooth sliding of the cavity wall due to the smooth transition, and avoid scratching the cavity wall.
[0055] like Figure 1 As shown, in some embodiments of the present application, there is a smooth transition between the insertion protrusion 120 and the distal end surface 100a. It should be understood that as the insertion protrusion 120 is further inserted, the portion of the cavity wall of the stretched human cavity that contacts the front end seat 100 will increase, and the cavity wall that previously contacted the insertion protrusion 120 will slide to contact the distal end surface 100a of the front end seat 100. In this example, the intersection of the insertion protrusion 120 and the distal end surface 100a of the front end seat 100 has a smooth transition, which can provide a certain support for the cavity wall of the cavity, so that the cavity wall and the front end seat 100 fit more closely as a whole, and avoid excessive pressure or scratching on the cavity wall caused by only the more convex part of the front end seat 100 providing support.
[0056] In some embodiments of the present application, the central axis of the insertion protrusion 120 and the central axis of the instrument port 110 are distributed along the same radial direction of the front end seat 100. Figure 5 As shown, the dotted line l3 shows the diameter of the front end seat 100, and the central axis of the insertion protrusion 120 and the central axis of the instrument port 110 are distributed along l3.
[0057] It should be understood that on the distal side of the front end seat 100, the insertion protrusion 120 and the instrument port 110 mainly occupy a larger layout space, and the radial direction of the front end seat 100 usually provides the largest dimension width, which is conducive to the reasonable arrangement of the insertion protrusion 120 and the instrument port 110, thereby improving the structural compactness and space utilization of the front end seat 100, and facilitating the miniaturized design of the front end seat 100.
[0058] In addition, the front seat 100 disclosed in the embodiment of the present application optimizes the insertion operation of the endoscope insertion part by first extending the insertion protrusion 120 into the cavity, that is, the insertion protrusion 120 is the guiding structure of the front end of the insertion part. Since the instrument port 110 is the exit of the endoscope instrument channel, such a configuration enables the surgical instrument to be inserted and removed along the insertion direction of the insertion protrusion 120, which is also the insertion direction of the entire insertion part, thereby ensuring the accuracy of the surgical instrument in and out, avoiding deflection, and facilitating the manipulation of the surgical instrument, especially during surgery.
[0059] In some embodiments of the present application, the portion of the insertion protrusion 120 close to the edge of the distal end surface 100a is aligned with the edge of the distal end surface 100a. Figure 5 , the k portion of the insertion protrusion 120 is aligned with the edge of the distal end surface 100a of the front end seat 100. It should be understood that such a layout allows a smooth transition between the intersection of the insertion protrusion 120 and the distal end surface 100a of the front end seat 100, avoiding the appearance of a structure with sudden shape changes such as steps. During the process of the insertion portion being inserted into the human body cavity, the cavity wall of the cavity will slide smoothly along the side surface 120b of the insertion protrusion 120 to the intersection of the insertion protrusion 120 and the distal end surface 100a of the front end seat 100 (see Figure 5 k), thereby avoiding scratching the cavity wall.
[0060] In some embodiments of the present application, the distal surface 100a of the front end seat 100 is a closed surface in the area except the instrument port 110, and the front end seat 100 has a light-transmitting area. Along the axial direction of the front end seat 100, the light-transmitting area is arranged corresponding to the installation space of the camera 200 and the light source 300 of the front end assembly.
[0061] It should be understood that during the assembly process of the front end assembly of the endoscope in the related art, glue is injected into the inner cavity from the proximal opening of the front end seat 100 to achieve the assembly of the internal functional components. However, since there are also multiple openings on the distal surface 100a of the front end seat 100, such as the viewfinder hole of the camera 200, in order to prevent the glue from overflowing from these openings, they must be sealed by tooling. It can be seen that the assembly of the front end assembly in the related art is relatively cumbersome.
[0062] In this example, the instrument opening 110 can be blocked by inserting the instrument tube 500 into the inner cavity of the front end seat 100, because the glue injection area is the area between the inner wall of the front end seat 100 and the outer wall of the instrument tube 500. At the same time, since the area of the distal end surface 100a of the front end seat 100 except the instrument opening 110 is a closed surface, no additional tooling is required during the assembly of the front end assembly, and glue can be directly injected from the proximal opening of the front end seat 100, thereby simplifying the assembly process.
[0063] It is worth mentioning that the light-transmitting area of this example can transmit light at the position of the front end seat 100 corresponding to the camera 200 and the light source 300 to ensure normal framing of the camera 200 and normal illumination of the light source 300.
[0064] Further, the front end seat 100 is an integrally formed transparent structural member. Exemplarily, the front end seat 100 can be integrally formed of a transparent plastic material. It should be understood that the integrally formed method improves the processing efficiency of the front end seat 100, and is also conducive to forming a closed surface in the area of the distal end surface 100a of the front end seat 100 except the instrument port 110, and at the same time, it can also make the parts of the front end seat 100 corresponding to the camera 200 and the light source 300 transparent.
[0065] like Figure 1 and Figure 6 As shown, in some embodiments of the present application, the front end seat 100 has a mounting groove provided on its outer peripheral surface, and the mounting groove is used to install the distal end of the traction rope 600. Specifically, the mounting groove in this example is the third mounting groove 150. It should be understood that the opening of the third mounting groove 150 in this example is radially outward along the front end seat 100, so that after the distal end of the traction rope 600 is installed in the third mounting groove 150, it can be limited by the side wall or skin of the distal snake bone. Compared with the method of directly blocking through the side wall of the front end seat 100, this is equivalent to achieving a thinning process on the side wall of the front end seat 100, that is, the radial size of the front end seat 100 is reduced, which not only saves materials, but also is conducive to the miniaturization design of the front end component.
[0066] Based on the aforementioned front end seat 100, some embodiments of the present application provide a front end assembly. Figure 1 to Figure 6 The front end assembly includes the front end seat 100 mentioned in any of the aforementioned schemes, thereby having the beneficial effects of the aforementioned front end seat 100, which will not be repeated here.
[0067] Among them, Figure 3 and Figure 4 As shown, in order to facilitate the installation of the camera 200 , the light source 300 , the circuit board 400 , etc., the front end assembly may include a support block 700 for supporting the circuit board 400 in the inner cavity of the front end seat 100 .
[0068] Based on the aforementioned front-end component, some embodiments of the present application provide an insertion portion, which may include the front-end component mentioned in any of the aforementioned solutions, thereby having the beneficial effects of the aforementioned front-end component.
[0069] Based on the aforementioned insertion part, some embodiments of the present application provide an endoscope. The endoscope includes a handle and the insertion part mentioned in any of the aforementioned solutions, and the handle is connected to the insertion part. In this way, the endoscope has the beneficial effects of the aforementioned insertion part, which will not be repeated.
[0070] The endoscope referred to in the embodiments of the present application may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiments of the present application do not impose any specific restrictions on the type of endoscope.
[0071] The above embodiments of the present application focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.
[0072] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims
1. A front end seat, applied to the front end assembly of an endoscope, characterized in that: The front end seat has an inner cavity and an instrument port provided on its distal end surface, the inner cavity is used to install the functional components of the front end assembly and the instrument tube, and the instrument port is communicated with the inner cavity and is used to cooperate with the instrument tube to form an instrument channel outlet; The front end seat also has an insertion protrusion arranged on its distal end surface. Along the axial direction of the front end seat, the orthographic projection of the insertion protrusion on the plane where the distal end surface is located is located within the distal end surface and avoids the instrument port.
2. The front end seat according to claim 1, characterized in that: The inner cavity includes an installation space, which is arranged corresponding to the insertion protrusion along the axial direction of the front end seat and extends into the insertion protrusion. The installation space is used to install the camera and / or light source of the front end component.
3. The front end seat according to claim 1 or 2, characterized in that: The central axis of the insertion protrusion and the central axis of the instrument port are distributed along the same radial direction of the front end seat.
4. The front end seat according to claim 1 or 2, characterized in that: The portion of the insertion protrusion close to the edge of the distal end surface is aligned with the edge of the distal end surface.
5. The front end seat according to claim 1 or 2, characterized in that: The insertion protrusion is a rotating body, and its rotation axis is distributed along the axial direction of the front end seat; and / or, a smooth transition between the top surface of the insertion protrusion and its side surface; And / or, there is a smooth transition between the insertion protrusion and the distal end surface.
6. The front end seat according to claim 1 or 2, characterized in that: The distal end surface of the front end seat is a closed surface in the area except the instrument port, and the front end seat has a light-transmitting area, and along the axial direction of the front end seat, the light-transmitting area is arranged corresponding to the installation space of the camera and the light source of the front end assembly; And / or, the front end seat has a mounting groove arranged on its outer peripheral surface, and the mounting groove is used to install the distal end of the traction rope.
7. The front end seat according to claim 6, characterized in that: The front end seat is an integrally formed transparent structural member.
8. A front end component, characterized in that: The front end seat comprises the front end seat according to any one of claims 1 to 7.
9. An insertion portion, characterized in that: Comprising the front end assembly as claimed in claim 8.
10. An endoscope, characterized in that: The invention comprises a handle and the insertion part according to claim 9, wherein the handle is connected to the insertion part.