Endoscope rod assembly and endoscope handle
By introducing a guide sleeve into the endoscope rod assembly, the bending angle of the light guide beam is controlled, and the problem of the existing endoscope handle causing the bending angle of the light guide beam to be too large and broken, achieving a simplified operation of the long-term use of the light guide beam and simplified viewing angle adjustment.
Patent Information
- Application Number
- CN202420543488.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-03-19
AI Technical Summary
The existing endoscope handles are likely to cause excessive bending angle of the light guide beam when held, resulting in damage or breaking of the glass fiber, thereby reducing the brightness of the front end of the mirror rod and shortening the service life of the light guide beam.
An endoscopic mirror rod assembly is designed, including a mirror rod body, a beam guide connector, a fixing bracket and a guide sleeve. The guide sleeve guides the guide beam to bend through the bent section to avoid bending directly at the connection between the guide beam joint, thereby controlling the bending angle and preventing the guide beam from breaking.
Through the guidance of the guide sleeve, the fracture problem caused by excessive bending angle of the guide beam is avoided, the service life of the guide beam is extended, and the operation of doctors to adjust the viewing angle during surgery is simplified.
Smart Images
Figure CN222722969U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of endoscopes, in particular to an endoscope rod assembly and an endoscope handle. Background Art
[0002] Endoscopic surgery is a common minimally invasive surgery. The doctor holds the endoscope and inserts the endoscope rod into the human body to reach the lesion, and observes the lesion image through the endoscope lens. In order to observe the lesion image more accurately, the lens needs to be within the visible range of the operation, with the best brightness and the clearest field of view.
[0003] Most of the endoscopes currently used in endoscopic surgery are connected to a wire and a light guide. During the operation, the doctor needs to adjust the angle of the lens, and usually holds the endoscope lens rod and the light guide to rotate so that the lens reaches the required field of view of the doctor. Existing endoscopes usually directly connect the light guide to the rod without setting some good fixing structure, which makes it easy for the doctor to make the light guide form a large bending angle when holding it, causing the glass fiber inside the light guide to be damaged or even broken, and finally causing the brightness of the front end of the rod to decrease. Under long-term use, it is easy to cause the light guide to be scrapped. Utility Model Content
[0004] Based on this, it is necessary to provide an endoscope rod assembly and an endoscope handle to address the problem that the existing endoscope handle is easy to break the guide light beam when being held.
[0005] An endoscope rod assembly, comprising:
[0006] Mirror rod body;
[0007] A light guide connector, the light guide connector is fixedly connected to the side of the mirror rod body, and the light guide connector is used to connect the light guide;
[0008] A fixing bracket, the fixing bracket being connected to the mirror rod body; and
[0009] A guide sleeve, wherein the guide sleeve is connected to the fixed bracket, and the guide sleeve comprises at least one guide section that bends and extends in the direction of the eyepiece port of the mirror rod body, and the guide section is used to be sleeved on the guide light beam to guide the guide light beam to bend in the direction of the eyepiece port of the mirror rod body.
[0010] In one embodiment, the minimum bending radius of the guide sleeve is greater than or equal to five times the outer diameter of the light guide.
[0011] In one embodiment, the inner diameter of the guide sleeve is larger than the inner diameter of the light guide.
[0012] In one embodiment, the difference between the inner diameter of the guide sleeve and the maximum outer diameter of the light guide is at least 1 mm.
[0013] In one of the embodiments, the fixing bracket extends obliquely toward a direction between the light guide connector and an eyepiece port of the mirror rod body.
[0014] In one of the embodiments, the fixing bracket includes a curved section connected to the guide sleeve, and the curved section is curved and extends toward the eyepiece port of the mirror rod body.
[0015] In one embodiment, the length of the fixing bracket is greater than the length of the light guide connector.
[0016] In one of the embodiments, the light guide connector extends obliquely toward the eyepiece port of the mirror rod body.
[0017] In one embodiment, the surfaces of the guide sleeve and the fixing bracket have a surface coating.
[0018] An endoscope handle, comprising:
[0019] a handle body; and
[0020] As in any of the above-mentioned endoscope rod assemblies, the endoscope rod assembly is mounted on the front end of the handle body.
[0021] The guide sleeve of the endoscope rod assembly can guide the light guide to bend in the bending direction of the guide section. When the doctor holds the endoscope handle and the light guide at the same time, the light guide is guided by the guide section and bends in the direction of the eyepiece port of the rod body, thereby preventing the light guide from bending directly at the connection with the light guide joint. The bending angle of the light guide is determined by the bending angle of the guide section. Therefore, by controlling the bending angle of the guide section, the problem of the light guide breaking caused by the excessive bending angle of the light guide can be avoided. In addition, the doctor can adjust the viewing angle with one hand. In the holding state, the thumb or index finger can be used to move the guide sleeve to adjust the viewing angle, which reduces the complexity of the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic plan view of an endoscope shaft assembly provided for one embodiment of the present application.
[0023] Figure numerals: 11, mirror rod body; 111, eyepiece port; 12, light guide connector; 13, fixing bracket; 14, guide sleeve; 15, light guide. DETAILED DESCRIPTION
[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0030] Based on the problem that the existing endoscope handle is easy to break the light guide when being held, the present application provides an endoscope rod assembly and an endoscope handle. The endoscope rod assembly can guide the light guide to bend and avoid the problem of light guide breaking.
[0031] For details, please refer to Figure 1 The endoscope rod assembly may include a rod body 11, a light guide connector 12, a fixing bracket 13, and a guide sleeve 14. The light guide connector 12 is fixedly connected to the side of the rod body 11, and is used to connect a light guide 15. The fixing bracket 13 is connected to the rod body 11. The guide sleeve 14 is connected to the fixing bracket 13, and the guide sleeve 14 includes at least one guide section that is bent and extended in the direction of the eyepiece port 111 of the rod body 11, and the guide section is used to be sleeved on the light guide 15 to guide the light guide 15 to bend in the direction of the eyepiece port 111 of the rod body 11.
[0032] It is understandable that the guide sleeve 14 can guide the light guide 15 to bend in the bending direction of the guide section. When the doctor holds the endoscope handle and the light guide 15 at the same time, the light guide 15 is guided by the guide section and bends in the direction of the eyepiece port 111 of the mirror rod body 11, avoiding the light guide 15 from bending directly at the connection with the light guide connector 12, and the bending angle of the light guide 15 is determined by the bending angle of the guide section. Therefore, by controlling the bending angle of the guide section, the problem of the light guide 15 breaking due to the excessive bending angle of the light guide 15 can be avoided. In addition, the doctor can adjust the viewing angle with one hand. In the holding state, the thumb or index finger can be used to move the guide sleeve 14 to adjust the viewing angle, reducing the complexity of the operation.
[0033] More specifically, in one embodiment, the minimum bending radius of the guide sleeve 14 is greater than or equal to five times the outer diameter of the light guide 15. This arrangement ensures that the light guide 15 will not reach the minimum bending radius of the light guide fiber inside the light guide 15 when bending, thereby preventing the light guide 15 from breaking.
[0034] Optionally, in one embodiment, the inner diameter of the guide sleeve 14 is larger than the inner diameter of the light guide 15. In other words, there is a gap between the guide sleeve 14 and the light guide 15, so that the light guide 15 can smoothly pass through the guide sleeve 14.
[0035] Preferably, in one embodiment, the difference between the inner diameter of the guide sleeve 14 and the maximum outer diameter of the light guide 15 is at least 1 mm. The difference between the inner diameter of the guide sleeve 14 and the maximum outer diameter of the light guide 15 being 1 mm is a preferred solution. This arrangement can ensure that the light guide 15 can smoothly pass through the guide sleeve 14, while maintaining the cooperation between the light guide 15 and the guide sleeve 14, so that the guide sleeve 14 can better play a guiding role.
[0036] Furthermore, if Figure 1 In one embodiment shown, the fixing bracket 13 extends obliquely in the direction between the light guide connector 12 and the eyepiece port 111 of the mirror rod body 11. In this way, the fixing bracket 13 can arrange the connection between the guide sleeve 14 and the fixing bracket 13 between the fixing bracket 13 and the light guide connector 12 and the eyepiece port 111 of the mirror rod body 11, that is, the insertion opening of the guide sleeve 14 is arranged between the fixing bracket 13 and the light guide connector 12 and the eyepiece port 111 of the mirror rod body 11, so that the fixing bracket 13 can provide a certain guiding effect.
[0037] Alternatively, if Figure 1In one embodiment shown, the fixing bracket 13 includes a curved section connected to the guide sleeve 14, and the curved section is curved and extended toward the eyepiece port 111 of the mirror rod body 11. In this way, the curved section can guide the light guide 15 to bend, so that the light guide 15 can be inserted into the guide sleeve 14 more smoothly.
[0038] Preferably, if Figure 1 As shown, in one embodiment, the length of the fixing bracket 13 is greater than the length of the light guide connector 12. In this way, the fixing bracket 13 can increase the length of the light guide 15 segment connected to the light guide connector 12, that is, the length of the unbent light guide 15 segment before the light guide 15 segment is bent by the guide sleeve 14. This prevents the light guide 15 from breaking at this location.
[0039] In particular, if Figure 1 In one embodiment shown, the light guide connector 12 extends obliquely toward the eyepiece port 111 of the mirror rod body 11. This arrangement reduces the angle between the light guide 15 and the eyepiece port 111 of the mirror rod body 11, thereby reducing the bending radius of the light guide 15 when held.
[0040] Preferably, in one of the embodiments, the surfaces of the guide sleeve 14 and the fixed bracket 13 have a surface coating, which can be formed by surface treatment of the guide sleeve 14 and the fixed bracket 13. The surface coating can protect the guide sleeve 14 and the fixed bracket 13, prevent the guide sleeve 14 and the fixed bracket 13 from being corroded by body fluids, and improve the service life of the guide sleeve 14 and the fixed bracket 13.
[0041] It is worth noting that the material of the guide sleeve 14 and the material of the fixing bracket 13 must meet the relevant standards of medical devices and endoscopes. The material of the guide sleeve 14 and the material of the fixing bracket 13 support the requirements of low-temperature plasma or high-temperature and high-pressure sterilization. The surface coating also supports the requirements of low-temperature plasma or high-temperature and high-pressure sterilization.
[0042] Furthermore, the endoscope handle may include a handle body and an endoscope rod assembly as described above, and the endoscope rod assembly is mounted on the front end of the handle body. When the endoscope handle is held, the bending angle of the light guide 15 can be maintained through the cooperation of the guide sleeve 14 and the fixing bracket 13, thereby preventing the light guide 15 from breaking. By turning the guide sleeve 14, the viewing angle can be adjusted, and the operation is simple.
[0043] The technical features of the above embodiment can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiment are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0044] The above embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. An endoscope rod assembly, characterized in that: include: Mirror rod body; A light guide connector, the light guide connector is fixedly connected to the side of the mirror rod body, and the light guide connector is used to connect the light guide; A fixing bracket, the fixing bracket being connected to the mirror rod body; and A guide sleeve, wherein the guide sleeve is connected to the fixed bracket, and the guide sleeve comprises at least one guide section that bends and extends in the direction of the eyepiece port of the mirror rod body, and the guide section is used to be sleeved on the guide light beam to guide the guide light beam to bend in the direction of the eyepiece port of the mirror rod body.
2. The endoscope rod assembly according to claim 1, characterized in that: The minimum bending radius of the guide sleeve is greater than or equal to five times the outer diameter of the light guide.
3. The endoscope rod assembly according to claim 2, characterized in that: The inner diameter of the guide sleeve is larger than the inner diameter of the light guide.
4. The endoscope rod assembly according to claim 3, characterized in that: The difference between the inner diameter of the guide sleeve and the maximum outer diameter of the light guide is at least 1 mm.
5. The endoscope rod assembly according to claim 2, characterized in that: The fixing bracket extends obliquely toward a direction between the light guide connector and the eyepiece port of the mirror rod body.
6. The endoscope rod assembly according to claim 5, characterized in that: The fixing bracket comprises a curved section connected to the guide sleeve, and the curved section is curved and extends toward the eyepiece port of the mirror rod body.
7. The endoscope rod assembly according to claim 2, characterized in that: The length of the fixing bracket is greater than the length of the light guide connector.
8. The endoscope rod assembly according to claim 2, characterized in that: The light guide connector extends obliquely toward the eyepiece port of the mirror rod body.
9. The endoscope rod assembly according to any one of claims 1 to 8, characterized in that: The surfaces of the guide sleeve and the fixing bracket have a surface coating.
10. An endoscope handle, characterized in that: include: handle body; and An endoscope rod assembly as described in any one of claims 1 to 9, wherein the endoscope rod assembly is mounted on the front end of the handle body.