CN215899620U

CN215899620U - Arthroscope with adjustable observation angle

Info

Publication number: CN215899620U
Application number: CN202120433086.2U
Authority: CN
Inventors: 史春宝; 李红霞; 吴增光
Original assignee: Beijing Chunlizhengda Medical Instruments Co Ltd
Current assignee: Beijing Chunlizhengda Medical Instruments Co Ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2022-02-25
Anticipated expiration: 2031-02-26

Abstract

The utility model relates to an arthroscope with an adjustable observation angle, which comprises: the endoscope optical fiber sequentially penetrates through the handle and the front section cylinder body to be connected with the endoscope head, wherein an adjusting slide block assembly is arranged on the handle, and a traction part is arranged in the lens cone body; one end of the traction part is fixedly connected with the endoscope head, and the other end of the traction part is connected with the adjusting slide block assembly; the free end portion is constructed to be provided with a deformation section with a preset distance, the traction component can be used for traction on the endoscope head under the control of the adjusting slide block assembly, and the curvature of the deformation section can be changed, so that the observation angle of the arthroscope can be adjusted. The arthroscope can be beneficial to doctors to comprehensively observe the internal structure of the joint cavity.

Description

Arthroscope with adjustable observation angle

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an arthroscope with an adjustable observation angle.

Background

The arthroscope is an indispensable medical instrument in joint diagnosis surgery, and doctors can inspect and treat diseased tissues in joint cavities more quickly and conveniently through the observation of the arthroscope. The arthroscope has small wound, good effect and quick recovery, can reduce the pain of patients and is compatible with doctors and patients.

In the present widely used arthroscope, the observation angle of the arthroscope is a fixed angle, the observation range is also fixed, when the arthroscope is used in a narrow space of a joint, the arthroscope is limited to a certain degree, sometimes, a doctor needs to replace the arthroscope with different visual angles to complete the operation, the operation progress is influenced, more pain is caused to a patient, and the labor intensity and the infection risk of the doctor during the operation are also increased.

SUMMERY OF THE UTILITY MODEL

In order to solve all or part of the problems, the utility model aims to provide an arthroscope with an adjustable observation angle, so that a doctor can comprehensively observe the internal structure of a joint cavity.

The arthroscope with the adjustable observation angle comprises a lens cone body, an endoscopic lens and endoscopic optical fibers, wherein the lens cone body comprises a front section cylinder and a handle connected with the front section cylinder; one end of the traction part is fixedly connected with the endoscope head, and the other end of the traction part is connected with the adjusting slide block assembly; the free end portion is constructed to be provided with a deformation section with a preset distance, the traction component can be used for traction on the endoscope head under the control of the adjusting slide block assembly, and the curvature of the deformation section can be changed, so that the observation angle of the arthroscope can be adjusted.

Furthermore, adjust the slider subassembly and include the regulating wheel, the regulating wheel rotates through the pivot and sets up in the casing of handle, and the part is located the outside of handle, wherein, traction element's one end and pivot fixed connection, simultaneously, the position of pivot and the length direction of anterior segment barrel are not collinear.

Furthermore, the adjusting wheel comprises a gear, a roller and a sliding block, wherein the gear is rotationally arranged in the shell of the handle through a rotating shaft; the roller wheel is meshed with the gear and is rotationally arranged on the shell of the handle; the slider slides and sets up on handle casing, and can form detachable joint cooperation with the gyro wheel to the rotation of restriction gyro wheel.

Furthermore, a winding post is arranged in the shell of the handle, an elastic sleeve is sleeved on the winding post, and the traction component is a metal wire, wherein one end of the metal wire is wound on the elastic sleeve and is fixedly connected with the winding post, and the other end of the metal wire penetrates through the endoscope head and is fixed with the endoscope head, and meanwhile, the metal wire extends and is wound on the rotating shaft and is fixedly connected with the rotating shaft.

Further, the material of the wire is steel.

Furthermore, an angle scale is arranged on the roller, and a reference scale line is formed on the position, corresponding to the angle scale, on the shell of the handle.

Further, the rigidity of the material of the deformation section is less than that of the material of the front section barrel or the handle.

Further, the material of the deformation section is titanium alloy.

Furthermore, the endoscope head comprises an objective lens and an illumination lens which are fixed in the deformation section, and the endoscope optical fiber comprises an image transmission optical fiber connected with the objective lens and an illumination optical fiber connected with the illumination lens.

Furthermore, the lens cone body still includes the back end barrel of fixed connection on the handle relative with the anterior segment barrel, and speculum optic fibre passes back end barrel, handle and anterior segment barrel in proper order.

The arthroscope with the adjustable observation angle has the advantages that:

1) the arthroscope with the adjustable observation angle is composed of a simple structure and a simple operation mode, namely, the observation angle of the endoscopic lens can be stably adjusted, so that a doctor can more conveniently and comprehensively observe the internal structure of a joint cavity;

2) the arthroscope with the adjustable observation angle can be processed at low cost, and further, the arthroscope with the adjustable observation angle can further adopt an endoscopic lens with low price, so that the cost of the arthroscope is reduced to the minimum, and the arthroscope with the adjustable observation angle can be constructed into a disposable product, thereby directly saving the disinfection time of the arthroscope, effectively ensuring the smooth operation and avoiding the problem of cross infection of patients.

Drawings

FIG. 1 is a schematic view of an arthroscope with an adjustable observation angle according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the adjustable viewing angle arthroscope of FIG. 1;

fig. 3 is a schematic sectional view along the direction a-a of the adjustable viewing angle arthroscope shown in fig. 2.

Detailed Description

For a better understanding of the objects, structure and function of the present invention, an arthroscope with an adjustable viewing angle according to the present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 to 3 show a structure of an arthroscope 100 with an adjustable observation angle according to an embodiment of the present invention. As shown in fig. 1 to 3, an observation angle adjustable arthroscope 100 according to an embodiment of the present invention includes a lens barrel body 1, an endoscopic lens 2, and an endoscopic fiber 3, wherein the lens barrel body 1 includes a front-end cylinder 11 and a handle 12 connected to the front-end cylinder 11, the endoscopic lens 2 is disposed in a free end portion of the front-end cylinder 11, and the endoscopic fiber 3 is connected to the endoscopic lens 2 through the handle 12 and the front-end cylinder 11 in sequence. Wherein, the handle 12 is provided with an adjusting slide block component 5, and the drawingpart 4 is arranged in the lens cone body 1; one end of the traction part 4 is fixedly connected with the endoscope head 2, and the other end is connected with the adjusting slide block assembly 5; the free end is configured to have a deformation section 111 with a preset distance H, and the traction component 4 can traction the endoscope head 2 under the control of the adjusting slide block assembly 5 and can change the curvature of the deformation section 111 so as to realize the adjustable observation angle of the arthroscope 100.

The endoscope head 2 mentioned in the present embodiment should be understood to have the function of capturing images and illumination. The scope fiber 3 mentioned in the present embodiment should be understood to have a role of transmitting an image and transmitting a light source. The fore-section cylinder 11 referred to in this embodiment should be understood as having a hollow cylinder within which the endoscope head 2 and the scope fiber 3 can be received and disposed. The handle 12 referred to in this embodiment should be understood to have a hollow housing within which at least the speculum optical fiber 3 and the traction means 4 can be housed and disposed. The adjustment slide assembly 5 mentioned in the present embodiment is to be understood as having an adjustment effect, which is capable of changing the movement distance of the traction means 4. The traction means 4 mentioned in the present embodiment should be understood as being capable of traction of the endoscope head 2 by its own movement, which may be a wire, a string or a rod. The preset distance H mentioned in this embodiment is understood to be a distance extending from the free end of the front cylinder 11 along the length direction of the front cylinder 11. The deformation section 111 mentioned in this embodiment should be understood as having a stiffness (referring to the ability of the material or structure to resist elastic deformation when subjected to a force) less than the other portions of the front section barrel 11, so that the viewing angle of the arthroscope 100 can be adjusted by changing the curvature of the deformation section 111.

When the arthroscope 100 with the adjustable observation angle according to the embodiment of the present invention is used, the medical staff holds the handle 12 of the arthroscope 100 and inserts the free end portion (i.e., the arthroscope observation end) of the front-section cylinder 11 into the joint cavity to observe the lesion tissue through the endoscope head 2. When the observation angle needs to be adjusted, the adjusting slide block assembly 5 is adjusted, the adjusting slide block assembly 5 drives the traction part 4 to move, and the traction part 4 pulls the endoscope head 2. In the present application, the free end of the front cylinder 11 is configured as the deformation section 111 with a preset distance H, so that the curvature of the deformation section 111 (the free end of the dotted line portion shown in fig. 2) can be changed during the process of pulling the endoscope head 2, so that the observation angle of the endoscope head 2 can be changed by changing the curvature.

The arthroscope 100 with the adjustable observation angle has the following advantages:

1) the arthroscope 100 with the adjustable observation angle of the embodiment of the utility model is composed of a simple structure and a simple operation mode, namely, the observation angle of the endoscope head 2 can be stably adjusted, so that a doctor can more conveniently and comprehensively observe the internal structure of the joint cavity;

2) furthermore, the arthroscope 100 with the adjustable observation angle of the embodiment of the utility model can further adopt the endoscope head 2 with lower price, so that the cost of the arthroscope 100 is reduced to the minimum, and the arthroscope 100 with the adjustable observation angle of the embodiment of the utility model can be constructed into a disposable product, thereby directly saving the disinfection time of the arthroscope 100, effectively ensuring the smooth operation and avoiding the problem of cross infection of patients.

It should be noted that the preset distance H may also be equal to the overall length of the front-section cylinder 11, the deformation section 111 may be configured as the whole of the front-section cylinder 11, and the bending of the deformation section 111 may be achieved by the overall bending of the front-section cylinder 11. It should be noted that the deformation section 111 can also be connected to the rest of the front barrel 11 by a hinged connection, so as to implement the above technical solution.

Preferably, as shown in fig. 2 and 3, the adjusting block assembly 5 may include an adjusting wheel 51, and the adjusting wheel 51 may be rotatably disposed in the housing of the handle 12 by a rotating shaft 52 and partially located outside the handle 12. One end of the traction component 4 is fixedly connected with the rotating shaft 52, and meanwhile, the position of the rotating shaft 52 is not collinear with the length direction of the front section cylinder 11. The fixed connection of one end of the traction component 4 with the rotating shaft 52 in this embodiment means that the traction component 4 can be wound on the rotating shaft 52 during the rotation of the adjusting wheel 51. The non-collinear drawing means that the drawing member 4 should form a certain included angle with the central line of the anterior cylinder 11 in the drawing direction of the drawing endoscope 2, so that the included angle of the generated force can be used for changing the curvature of the deformation section 111, thereby achieving the adjustable observation angle of the arthroscope 100 more well and stably.

Preferably, as shown in fig. 2 and 3, the adjustment wheel 51 may include a gear 511, a roller 512, and a slider 513. Wherein, the gear 511 is rotatably arranged in the shell of the handle 12 through a rotating shaft 52; the roller 512 is meshed with the gear 511 and is rotatably arranged on the shell of the handle 12; the slider 513 is slidably disposed on the housing of the handle 12 and is capable of forming a releasable snap-fit with the roller 512 to limit rotation of the roller 512. Through this setting, slider 513 can realize the location to gyro wheel 512 behind the angle of adjustment to guarantee angle modulation's stability, improve the accuracy of observing.

Preferably, as shown in fig. 2, a winding post 13 may be further disposed in the housing of the handle 12, an elastic sleeve (not shown) may be sleeved on the winding post 13, and the traction member 4 may be configured as a wire. One end of the metal wire is wound on the elastic sleeve and fixedly connected with the winding post 13, and the other end of the metal wire penetrates through the endoscope head 2 and is fixed with the endoscope head 2, and meanwhile, the metal wire extends and is wound on the rotating shaft 52 and fixedly connected with the rotating shaft 52. The elastic sleeve mentioned in this embodiment may be a rubber sleeve. Through the arrangement, one end of the metal wire is wound on the elastic sleeve and fixedly connected with the winding post 13, so that on one hand, the end part of the metal wire acts on the elastic component capable of generating a certain deformation quantity, and when the endoscope head 2 performs angle adjustment through traction of the metal wire, the elastic force of the elastic sleeve and the external force applied by the adjusting slide block assembly 5 can form complementation, so that the whole adjusting process is more stable, and after the external force applied by the adjusting slide block assembly 5 disappears, the elastic force of the elastic sleeve can accelerate the resetting process of the reverse movement of the metal wire to a certain extent; on the other hand, the end of the metal wire is wound on the elastic sleeve and fixedly connected with the winding post 13, so that the fixing strength of the metal wire is improved, and the problem that the angle of the endoscope head 2 cannot be adjusted due to the fact that the metal wire is separated from the endoscope head 2 due to poor connection strength is solved.

In a preferred embodiment, the material of the wire may be steel to increase the traction strength of the wire and ensure the stability of the viewing angle adjustment of the arthroscope 100.

In a preferred embodiment, the roller 512 may be provided with an angle scale (not shown), and the housing of the handle 12 may be formed with a reference mark line (not shown) at a position corresponding to the angle scale. The positions of the angle scale and the reference scale line mentioned in this embodiment only need to be able to accurately indicate the rotation angle of the roller 512. With this arrangement, the viewing angle adjustment of the arthroscope 100 can be parameterized. For example, the angle drawn by the wire can be viewed datamation of the reference reticle and the angle scale. The rolling range of the roller 512 is large, the wire drawing distance is long, and the bending angle of the deformation section 111 is large.

In a preferred embodiment, the material of the deformation section 111 is less rigid than the material of the front barrel 11 or the handle 12. The stiffness of the material of the deformation section 111 mentioned in this embodiment is to be understood as the ability of the material or structure to resist elastic deformation when subjected to a force. In this embodiment, the deformation section 111 is smaller than the front barrel 11 or the handle 12, and it should be understood that when the deformation section 111 is a part of the front barrel 11, the rigidity of the material of the deformation section 111 is smaller than that of the front barrel 11, and when the deformation section 111 is the front barrel 11, the rigidity of the material of the deformation section 111 is smaller than that of the handle 12. Specifically, the deformation section 111, the front section cylinder 11 and the handle 12 can be made of metal. For example, when the deformation section 111 is a part of the front cylinder 11, the material of other parts of the front cylinder 11 can be stainless steel, the material of the handle 12 can be plastic, and the material of the deformation section 111 can be titanium alloy. When the deformation section 111 is the front section of the barrel 11, the handle 12 may be made of stainless steel, and the deformation section 111 may be made of titanium alloy. Preferably, the material of the deformation section 111 may be nitinol.

Preferably, as shown in fig. 2, the endoscope head 2 may include an objective lens 21 and an illumination lens 22 fixed in the shape-changing section 111, and the endoscope fiber 3 may include an image-transmitting fiber 31 connected to the objective lens 21 and an illumination fiber 32 connected to the illumination lens 22.

Preferably, as shown in fig. 1 and 2, the lens barrel body 1 may further include a rear cylinder 14 fixedly connected to the handle 12 opposite to the front cylinder 11, and the sight glass fiber 3 sequentially passes through the rear cylinder 14, the handle 12, and the front cylinder 11. The rear cylinder 14 can be used to further protect the scope fiber 3.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.

In the description of the present application, it is to be understood that the terms "center", "length", "front", "back", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. An observation angle adjustable arthroscope is characterized by comprising a lens cone body, an endoscopic lens and endoscopic optical fibers, wherein the lens cone body comprises a front section cylinder and a handle connected with the front section cylinder, the endoscopic lens is arranged in the free end part of the front section cylinder, and the endoscopic optical fibers sequentially penetrate through the handle and the front section cylinder to be connected with the endoscopic lens, wherein an adjusting slide block assembly is arranged on the handle, and a traction part is arranged in the lens cone body; one end of the traction part is fixedly connected with the endoscope head, and the other end of the traction part is connected with the adjusting slide block assembly; the free end part is configured to be a deformation section with a preset distance, and the traction component can be used for traction on the endoscopic lens under the control of the adjusting slide block assembly and changing the curvature of the deformation section so as to realize the adjustable observation angle of the arthroscope.

2. The arthroscope of claim 1, wherein the adjusting block assembly comprises an adjusting wheel, the adjusting wheel is rotatably disposed in the housing of the handle through a rotating shaft and partially disposed outside the handle, wherein one end of the traction component is fixedly connected to the rotating shaft, and the position of the rotating shaft is not collinear with the length direction of the front barrel.

3. The arthroscope of claim 2, wherein the adjustment wheel comprises a gear, a roller and a slider, wherein the gear is rotatably arranged in the housing of the handle through a rotating shaft; the roller wheel is meshed with the gear and is rotationally arranged on the shell of the handle; the slider slides and sets up on the casing of handle, and can with the gyro wheel forms detachable joint cooperation, in order to restrict the rotation of gyro wheel.

4. The arthroscope of claim 3, wherein a winding post is further disposed in the housing of the handle, an elastic sleeve is sleeved on the winding post, and the traction member is a wire, wherein one end of the wire is wound on the elastic sleeve and fixedly connected with the winding post, and the other end of the wire passes through the endoscope head and is fixed with the endoscope head, and extends to be wound on and fixedly connected with the rotating shaft.

5. The adjustable viewing angle arthroscope of claim 4, wherein the material of the wire is steel.

6. The arthroscope of any one of claims 3 to 5, wherein the roller is provided with an angle scale, and the housing of the handle is provided with a reference scale line at a position corresponding to the angle scale.

7. The adjustable viewing angle arthroscope of any one of claims 1-5, wherein the material of the shape-changing segment is less rigid than the material of the anterior segment barrel or the handle.

8. The adjustable viewing angle arthroscope of claim 7, wherein the material of the shape-changing section is a titanium alloy.

9. An arthroscope according to any one of claims 1-5, wherein the endoscope head comprises an objective lens and an illumination head fixed within the shape-changing section, and the endoscope fiber comprises an image fiber connected to the objective lens and an illumination fiber connected to the illumination head.

10. The arthroscope of any one of claims 1 to 5, wherein the barrel body further comprises a rear barrel body fixedly connected to the handle opposite to the front barrel body, and the sight glass fiber passes through the rear barrel body, the handle and the front barrel body in sequence.