Multi-mode lighting device for cranial nerve surgery endoscope

Abstract

A multi-mode front-end lighting device of a cranial nerve operation endoscope comprises an end socket, an instrument channel opening and a camera assembly mounting channel are arranged in the middle of the end socket, a camera assembly is mounted in the camera assembly mounting channel, a lighting mounting channel is formed in the end socket, and a forward lighting optical fiber bundle is mounted in the lighting mounting channel; a cylindrical tube seat is fixedly mounted at the rear end of the end seat, and the rear end of the cylindrical tube seat is connected with an endoscope channel tube; a plurality of optical fiber holes are evenly formed in the side surface of the cylindrical tube base, radial illumination optical fiber bundles are fixedly installed in the optical fiber holes, and the rear ends of the forward illumination optical fiber bundles and the rear ends of the radial illumination optical fiber bundles penetrate through the endoscope channel tube and correspond to a luminous source in the endoscope. According to the utility model, the defects in the prior art are overcome, perspective illumination on brain tissues is realized through a front-emitting and side-rear double-illumination mode, the illumination intensity is improved, the observation effect on blood vessels in the brain tissues is further enhanced, and the safety and effectiveness of an operation are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to human life article, especially medical equipment, specifically a kind of multimodal front end lighting device of brain nerve operation endoscope. BACKGROUND

[0002] Transsphenoidal endoscopic resection of sellar lesions is a routine and complex skull base surgery in neurosurgery. Tumors often affect the cavernous sinus and internal carotid artery. Safe resection of the tumor while protecting the brain's major blood vessels is a key point in the operation.

[0003] An endoscope is an electronic instrument commonly used in medical examinations and industrial defect detection. The endoscope includes an insertion part inserted into the human body or the inside of equipment and an operation handle that controls the movement of the insertion part, image capture, and lighting operations. The insertion part includes an insertion tube and a tip head, and the tip head is equipped with a camera and a light source. Using an endoscope can see lesions that X-rays cannot display.

[0004] In the prior art, the illumination of the brain nerve endoscope used in neurosurgical operations relies on white light front projection illumination. However, this illumination method has obvious shortcomings, namely, it lacks sufficient illumination of the surrounding area of the brain tissue, making it difficult for the surgeon to obtain multi-faceted point illumination of the brain tissue during the operation. At the same time, the prior art does not fully utilize the wavelength characteristics of light to provide a developed image of the blood vessels in the brain tissue, thereby increasing the risk of the operation. SUMMARY

[0005] To overcome the shortcomings of the prior art, the utility model provides a multimodal front end lighting device of brain nerve operation endoscope, which overcomes the shortcomings of the prior art, is reasonable in design, realizes perspective illumination of brain tissue through front and rear side illumination, improves the intensity of illumination, thereby enhancing the observation effect of blood vessels in brain tissue and improving the safety and effectiveness of the operation.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme:

[0007] A multimodal front end lighting device of brain nerve operation endoscope, comprising a tip seat, an instrument passage opening and a camera assembly installation channel are arranged in the middle of the tip seat, a camera assembly is installed in the camera assembly installation channel, an illumination installation channel is arranged in the tip seat, and a front projection illumination fiber bundle is installed in the illumination installation channel;

[0008] A cylindrical tube seat is fixedly installed at the rear end of the tip seat, and the rear end of the cylindrical tube seat is connected with an endoscope channel pipe; a plurality of fiber holes are uniformly arranged in the circumferential surface of the cylindrical tube seat, a radial illumination fiber bundle is fixedly installed in each fiber hole, and the rear ends of the front projection illumination fiber bundle and the radial illumination fiber bundle pass through the endoscope channel pipe and correspond to the light source inside the endoscope.

[0009] Preferably, two illumination installation channels are provided, and a front-throwing illumination fiber bundle is fixedly installed in each of the two illumination installation channels, the instrument channel port, the camera assembly installation channel and the two illumination installation channels are arranged around the central axis of the tip seat and are spaced apart, and the two illumination installation channels are symmetrically arranged on the two sides of the camera assembly installation channel.

[0010] Preferably, the rear section of the tip seat is in the form of a circular truncated cone structure with a wide front and a narrow rear.

[0011] Preferably, the fiber holes are arranged in a cross-shaped arrangement on the circumferential surface of the cylindrical tube seat.

[0012] The utility model provides a multimodal illumination device for brain nerve operation endoscope. Have the following beneficial effects: through the control inside the endoscope light source opening, make the front-throwing illumination fiber bundle in the tip seat front end illumination installation channel carry out the illumination, also make each radial illumination fiber bundle in the fiber hole of the side surface of the cylindrical tube seat carry out the multi -faced point illumination to the surrounding of brain tissue, thereby through the mutual cooperation between the front-throwing illumination fiber bundle and radial illumination fiber bundle, provide more comprehensive brain tissue illumination effect for operation, enhance the observation to the blood vessel in brain tissue, thereby reduce the operation risk. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the prior art description.

[0014] Fig. 1 The structural schematic diagram of the utility model;

[0015] Fig. 2 The sectional structure schematic diagram of the utility model;

[0016] Explanation of reference numerals in the drawings:

[0017] 1, tip seat;2, instrument channel port;3, camera assembly installation channel;4, illumination installation channel;5, front-throwing illumination fiber bundle;6, cylindrical tube seat;7, endoscope channel pipe;8, fiber hole;9, radial illumination fiber bundle. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following will combine the drawings in the utility model, and the technical scheme in the utility model is clearly and completely described.

[0019] Example one, such as Figs. 1-2As shown, the utility model discloses a multimodal lighting device for brain nerve operation endoscope, including end head seat 1, the end of end head seat 1 first entering human body is front end, and the front end of end head seat 1 is provided with installation groove, and the middle of end head seat 1 is equipped with instrument passage port 2 and camera assembly installation channel 3, and camera assembly installation channel 3 is installed with camera assembly, and the inside of end head seat 1 is provided with lighting installation channel 4, and lighting installation channel 4 is installed with front shot lighting fiber bundle 5;The front end of instrument passage port 2, camera assembly installation channel 3 and lighting installation channel 4 are all located in the installation groove;In this embodiment, front shot lighting fiber bundle 5 can be a gathered fiber bundle, also can be a scattered fiber bundle, and the scattered fiber bundle is evenly filled in the whole lighting installation channel 4, so that front shot lighting fiber bundle 5 forms a light emitting surface corresponding to the shape of lighting installation channel 4, to increase the illumination output angle;

[0020] The rear end of end head seat 1 is fixedly installed with cylindrical tube seat 6, and the rear end of cylindrical tube seat 6 is connected with endoscope channel pipe 7;A plurality of optical fiber holes 8 are uniformly provided on the side surface of cylindrical tube seat 6 along the circumferential direction, and radial lighting fiber bundle 9 is fixedly installed in optical fiber hole 8, and the rear end of front shot lighting fiber bundle 5 and radial lighting fiber bundle 9 passes through endoscope channel pipe 7 and corresponds to the light source inside endoscope.

[0021] The endoscope includes an operating handle, the endoscope channel pipe 7 is connected between the operating handle and the cylindrical tube seat 6, the signal lead of the camera assembly, the front shot lighting fiber bundle 5 and the radial lighting fiber bundle 9 all penetrate the endoscope channel pipe 7 and are connected with the operating handle, so that the user can perform camera shooting, lighting and other operations through the operating handle.

[0022] Working principle:

[0023] Taking the sellar region lesion resection under the transnasal sphenoid sinus endoscope as an example, after the conventional nasal cavity preparation and the opening of the sphenoid sinus front wall, the doctor can apply the multimodal lighting device for brain nerve operation endoscope of the utility model. By controlling the opening of the light source inside the endoscope, the front shot lighting fiber bundle 5 in the lighting installation channel 4 at the front end of the end head seat 1 is illuminated, and at the same time, each radial lighting fiber bundle 9 in the optical fiber hole 8 on the circumference of the cylindrical tube seat 6 is also illuminated to the surrounding of the brain tissue, so that the front shot lighting fiber bundle 5 and the radial lighting fiber bundle 9 cooperate with each other to provide more comprehensive brain tissue illumination effect for the operation, enhance the observation of the blood vessels in the brain tissue, and thus reduce the operation risk.

[0024] In addition, in the embodiment, the driving current of the light source inside the endoscope can be controlled and adjusted, and then the depth of the light wavelength of the forward-illuminating optical fiber bundle 5 and the radial-illuminating optical fiber bundle 9 is adjusted, so that the blood vessels around the tumor are developed and observed, and the running of the cerebral blood vessels and the relationship with the tumor are confirmed. This illumination mode helps the doctor to more accurately judge the operation situation and improve the safety and effectiveness of the operation.

[0025] In the embodiment, the two forward-illuminating optical fiber bundles 5 are arranged in the two illumination mounting channels 4, respectively, so that the camera assembly in the camera assembly mounting channel 3 can be sufficiently illuminated when the camera assembly collects images, and the illumination is more uniform by arranging the two forward-illuminating optical fiber bundles 5 on the two sides of the camera assembly mounting channel 3, so that the realness and the clarity of the images collected by the camera assembly are improved, and then the detection quality is improved.

[0026] In the embodiment, the rear section of the tip seat 1 is arranged in a circular table type structure with a front width and a rear narrowness, and the diameter of the cylindrical tube seat 6 is equal to the diameter of the rear end surface of the tip seat 1, so that the rear end of the tip seat 1 can be smoothly connected with the cylindrical tube seat 6.

[0027] In the embodiment, the plurality of optical fiber holes 8 are arranged in a cross type on the circumferential surface of the cylindrical tube seat 6, so that the radial-illuminating optical fiber bundles 9 are arranged in a cross type, so as to effectively ensure the uniformity of the multi-faceted point illumination of the radial-illuminating optical fiber bundles 9 on the surrounding of the brain tissue.

[0028] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent features. The modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-modal illumination device for brain nerve surgery endoscope, comprising a tip seat (1), a instrument channel opening (2) and a camera assembly installation channel (3) are arranged in the middle of the tip seat (1), a camera assembly is installed in the camera assembly installation channel (3), an illumination installation channel (4) is arranged in the tip seat (1), a front-throw illumination fiber bundle (5) is installed in the illumination installation channel (4); characterized in that A cylindrical tube seat (6) is fixedly installed at the rear end of the tip seat (1), the rear end of the cylindrical tube seat (6) is connected with an endoscope channel tube (7); a plurality of fiber holes (8) are uniformly arranged in the circumferential surface of the cylindrical tube seat (6), a radial illumination fiber bundle (9) is fixedly installed in each fiber hole (8), the rear ends of the front-throw illumination fiber bundle (5) and the radial illumination fiber bundle (9) pass through the endoscope channel tube (7) and correspond to the light sources inside the endoscope.

2. The multi-modal illumination device for brain neurosurgery endoscopes according to claim 1, characterized in that: Two illumination installation channels (4) are arranged, a front-throw illumination fiber bundle (5) is fixedly installed in each illumination installation channel (4), the instrument channel opening (2), the camera assembly installation channel (3) and the two illumination installation channels (4) are arranged around the central axis of the tip seat (1) and are spaced apart, and the two illumination installation channels (4) are symmetrically arranged on the two sides of the camera assembly installation channel (3).

3. The multi-modal illumination device for brain neurosurgery endoscopes of claim 1, wherein: The rear part of the tip seat (1) is arranged in a circular table type structure with a wide front and a narrow rear.

4. The multi-modal illumination device for brain neurosurgery endoscopes of claim 1, wherein: The fiber holes (8) are arranged in a cross type on the circumferential surface of the cylindrical tube seat (6).

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