Outside view mirror for surgical operation

Abstract

The utility model discloses an exterior mirror for surgical operation, which is characterized by comprising an outer sleeve and an inner sleeve, and the inner sleeve is sleeved on the inner side of the outer sleeve; a light guide channel is arranged between the outer sleeve and the inner sleeve, and a light source connector is arranged on one side of the light guide channel. A light path pipe is arranged on the inner side of the inner sleeve, a light path system is arranged in the light path pipe, an eyepiece assembly is arranged at the position, close to the light source connector, of one end of the light path pipe, an objective lens assembly is arranged at the other end of the light path pipe, the objective lens assembly comprises an objective lens base, a plurality of light guide openings are formed in the objective lens base and connected with the light guide channel, and condensing lenses are arranged on the light guide openings. And a lens protection sheet is arranged on the front side of the condensing lens. The utility model has the advantages of small volume, good mobility, wider visual field, longer focal length and larger visual field depth in surgical operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to an exoscopic mirror used for surgical operations. Background Art

[0002] In surgical operations, such as posterior cranial fossa surgery, complex cerebrovascular surgery, otology mastoid surgery, hand and foot surgery, spinal surgery, etc., when the endoscope cannot meet these surgical requirements, a surgical microscope or exoscope is generally used.

[0003] The exoscope, also known as the endoscope, is a new type of medical optical device. The exoscope is mounted on a miniature pneumatic arm on a portable base. A small orientable camera system is mounted on the eyepiece mount of the exoscope. The objective lens of the exoscope faces the surgical area, thus providing a telescopic view of the surgical field.

[0004] The main difference between this device and the classic surgical microscope is that this optical device is far away from the surgeon and the patient, and provides microscopic observation of small nerves, blood vessels and other structural tissues on a large screen instead of an eyepiece, thereby minimizing the surgeon's fatigue during a long operation. At the same time, the surgical observer can see the same quality of surgical area images on the surgical display screen as the surgeon, which is convenient for teaching, learning, communication, multi-party consultation, etc.

[0005] In existing exoscopic mirrors, such as the exoscopic mirror with patent number 202230174491.7, the lens is 90 degrees to the long axis of the mirror body, so the space for connecting the camera, light source, etc. is limited. At the same time, such a design makes the internal optical path more complicated. Utility Model Content

[0006] The utility model aims to provide an exoscope for surgical operations. The utility model has the advantages of small size and good mobility, and at the same time enables the surgical operation to have a wider field of view, a longer focal length and a greater depth of field of view.

[0007] The technical solution of the utility model is as follows: an exoscopic scope for surgical operations comprises a light source interface, an outer sleeve, an inner sleeve and an optical path tube, wherein the light source interface is used to connect with a light source device, the inner sleeve is sleeved on the inner side of the outer sleeve, a light guide is provided between the outer sleeve and the inner sleeve, the light source interface receives the light generated by the light source device and transmits the light to an observation body through a light guide component provided in the light guide; an optical path tube is provided on the inner side of the inner sleeve, an eyepiece component is provided at one end of the optical path tube near the light source interface, and an objective lens component is provided at the other end, the objective lens component comprises an objective lens seat, a plurality of light guide ports are provided on the objective lens seat, the light guide ports are connected to the light guide, a condensing lens is provided on the light guide port, and a lens protection sheet is provided on the optical path system on one side of the condensing lens.

[0008] In the aforementioned exoscopic scope for surgical operations, the objective lens assembly and the eyepiece assembly are arranged in a straight line, the number of the light guide ports is two, and a first channel and a second channel arranged in a V shape are respectively provided between the two light guide ports and the light guide path, and the diameters of the first channel and the second channel are smaller than the diameter of the light guide path.

[0009] In the aforementioned exoscopic scope for surgical operations, a layer of welding metal is provided on the focusing lens to facilitate welding of the focusing lens to the light guide port, and the focusing lens can be plano-convex, bi-convex or convex-planar.

[0010] Compared with the prior art, the utility model arranges the objective lens assembly and the eyepiece assembly in a straight line, so that the volume of the external mirror becomes smaller and is easy to move.

[0011] At the same time, the utility model provides a plurality of light guide ports, so that the range of light propagation is wider, and the surgical operation has a wider field of view and a greater field of view depth.

[0012] In summary, the utility model has the advantages of small size, good mobility, and at the same time enables surgical operations to have a wider field of view, a longer focal length, and a greater depth of field of view. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0015] Figure 3 It is a cross-sectional view of another side of the utility model.

[0016] The marks in the accompanying drawings are: 1-objective lens assembly, 11-objective lens seat, 111-light guide port, 112-lens protection plate, 113-first channel, 114-second channel, 21-inner sleeve, 22-outer sleeve, 23-light guide channel, 24-optical path tube, 3-eyepiece assembly, 31-eyepiece seat, 4-light source interface, 5-condensing lens. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is further specifically described below through embodiments and in combination with the accompanying drawings, but it is not intended to limit the present invention.

[0018] Embodiment 1. An exoscopic scope for surgical operation comprises a light source interface 4, an outer sleeve 22 and an inner sleeve 21, wherein the light source interface 4 is used to connect with a light source device, and the inner sleeve 21 is sleeved on the inner side of the outer sleeve 22; a light guide 23 is provided between the outer sleeve 22 and the inner sleeve 21, and a light guide is provided in the light guide 23, and the light source interface receives light generated by the light source device and transmits the light to the observation object through the light guide; an optical path tube 24 is provided on the inner side of the inner sleeve 21, and an optical path system is provided in the optical path tube 24, an eyepiece assembly 3 is provided at one end of the optical path tube 24 near the light source interface 4, and an objective lens assembly 1 is provided at the other end, and the objective lens assembly 1 comprises an objective lens seat 11, and a plurality of light guide ports 111 are provided on the objective lens seat 11, and the light guide ports 111 are connected to the light guide 23, and a condenser lens 5 is provided on the light guide port 111, and a lens protection sheet 112 is provided on the front side of the condenser lens 5.

[0019] The objective lens assembly 1 and the eyepiece assembly 3 are arranged in a straight line, the number of the light guide ports 111 is two, and a first channel 113 and a second channel 114 arranged in a V shape are respectively provided between the two light guide ports 111 and the light guide path 23. The diameters of the first channel 113 and the second channel 114 are smaller than the diameter of the light guide path 23, so as to facilitate the propagation of the light path.

[0020] The condenser lens 5 is provided with a layer of welding metal to facilitate welding of the condenser lens 5 to the light guide port 111 . Meanwhile, the condenser lens 5 can be plano-convex, bi-convex or convex-flat.

[0021] The lens protection sheet 112 is provided with an objective lens system of the optical path system, and the lens protection sheet 112 is used to protect the objective lens system so that it can better transmit the object image.

[0022] The eyepiece assembly 3 is provided with an eyepiece seat 31 , and the eyepiece seat 31 is provided with an eyepiece system.

[0023] Instructions for use: The utility model is installed on a micro-pneumatic arm on a portable base, and a camera system is installed on the eyepiece seat 31 thereof. The condensing lens 5 on the objective lens seat 11 of the utility model faces the operating area, and the light source device is turned on. The light is transmitted to the first channel 113 and the second channel 114 through the light guide, and then the light is concentrated to the operating area through the condensing lens 5. The object image of the operating area is transmitted through the objective lens system on the lens protection sheet 112, the eyepiece system, and then the camera system on the eyepiece seat 31, and the object image is transmitted to a large screen, so that the doctor (operator) can perform visual operations on the operating area.

Claims

1. An exoscope for surgical operation, characterized in that: The invention comprises an outer sleeve (22) and an inner sleeve (21), wherein the inner sleeve (21) is sleeved on the inner side of the outer sleeve (22), a light guide (23) is provided between the outer sleeve (22) and the inner sleeve (21), a light source interface (4) is provided on one side of the light guide (23), an optical path tube (24) is provided on the inner side of the inner sleeve (21), an optical path system is provided in the optical path tube (24), an eyepiece assembly (3) is provided at one end of the optical path tube (24) near the light source interface (4), and an objective lens assembly (1) is provided at the other end, the objective lens assembly (1) comprises an objective lens seat (11), a plurality of light guide ports (111) are provided on the objective lens seat (11), the light guide ports (111) are connected to the light guide (23), a condenser lens (5) is provided on the light guide port (111), and a lens protection sheet (112) is provided on the optical path system on one side of the condenser lens (5).

2. The exoscope for surgical operation according to claim 1, characterized in that: The objective lens assembly (1) and the eyepiece assembly (3) are arranged on a straight line, the number of the light guide ports (111) is two, a first channel (113) and a second channel (114) are respectively provided between the two light guide ports (111) and the light guide path (23), and the diameters of the first channel (113) and the second channel (114) are smaller than the diameter of the light guide path (23).

3. The exoscope for surgical operation according to claim 2, characterized in that: The first channel (113) and the second channel (114) are in a V shape.

4. The exoscope for surgical operation according to claim 1, characterized in that: The lens protection sheet (112) is provided with an objective lens system of an optical path system.

5. The exoscope for surgical operation according to claim 1, characterized in that: The eyepiece assembly (3) is provided with an eyepiece seat (31), and the eyepiece seat (31) is provided with an eyepiece system of an optical path system.

6. The exoscope for surgical operation according to claim 1, characterized in that: A layer of welding metal is provided on the condenser lens (5).

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