CN108814530B

CN108814530B - Endoscope with built-in light source module

Info

Publication number: CN108814530B
Application number: CN201810526530.8A
Authority: CN
Inventors: 江春才; 黄运东; 田志红; 朱巍; 季颖波
Original assignee: Zhejiang Youyi Medical Equipment Co ltd
Current assignee: Zhejiang Youyi Medical Equipment Co ltd
Priority date: 2018-05-22
Filing date: 2018-05-22
Publication date: 2024-10-01
Anticipated expiration: 2038-05-22
Also published as: CN108814530A

Abstract

The invention discloses an endoscope with a built-in light source module, which comprises a connecting buckle, an eyepiece unit and an eyepiece tube which are connected, wherein the light source module is arranged in an eyepiece shell, a light guide optical fiber is arranged in the eyepiece tube, the light source module comprises an LED lamp and a condensing lens combination, the eyepiece shell is connected with the connecting buckle and can rotate relatively, an anode elastic piece and a cathode elastic piece are arranged on the connecting buckle, two conducting rings are arranged at the front end of the eyepiece shell, when the eyepiece shell rotates relatively with the connecting buckle, the anode elastic piece and the cathode elastic piece are always contacted with the corresponding conducting rings respectively, and the two conducting rings are electrically connected with the anode and the cathode of the LED lamp respectively. The endoscope is reasonable in structure, the observation angle is not required to be changed by changing the endoscope tube when the endoscope is used, the complicated operation of changing the endoscope tube when the observation angle is changed is avoided, the light source module is arranged in the eyepiece shell, an external light source is not required to be arranged when the endoscope is used, an external connection optical cable is omitted, and the use convenience is improved.

Description

Endoscope with built-in light source module

Technical Field

The invention relates to an endoscope with a built-in light source module, and belongs to the field of endoscope structural design.

Background

Endoscopes generally refer to medical instruments that enter the human body through various ducts to observe the internal condition of the body. The lesions that cannot be seen by X-rays can be seen with an endoscope, so that it is very useful for doctors. At present, each lens tube in the endoscope for medical diagnosis has only one observation angle, the observation angle cannot be adjusted after the lens tube is installed, the lens tubes with different view angles are often required to be replaced in the actual use process, the operation is quite complicated, the use is inconvenient, and a large number of lens tubes are required to be prepared for selection; the light source module used by the current endoscope is an external cold light source module, an output port of the cold light source module is connected with an optical fiber inlet in the endoscope through an optical cable, light of the cold light source module is led into the front end of a lens tube of the endoscope through the optical cable, the light source module is large in size and high in power consumption, and a long and heavy optical cable is dragged at an optical fiber interface between the cold light source module and the endoscope, so that great inconvenience is caused to doctors in use.

Disclosure of Invention

In this regard, the present invention aims to provide an endoscope with a built-in light source module having a reasonable structure, which can change an observation angle without changing a scope tube, thereby avoiding complicated operation of changing the scope tube when changing the observation angle, and the light emitted by the built-in light source module is conducted to the head of the scope tube through a light guide optical fiber, thereby omitting an external light source and an optical cable, and improving the convenience of use.

The technical scheme for realizing the aim of the invention is as follows:

The utility model provides an endoscope of built-in light source module, includes connection buckle, eyepiece unit and the mirror tube that is connected, the eyepiece unit includes the eyepiece casing, the inside light source module that is equipped with of eyepiece casing, have the leaded light optic fibre that extends the setting along mirror tube length direction in the mirror tube, the view angle of mirror tube head is greater than zero degrees, the light source module includes LED lamp and spotlight lens combination, the terminal of leaded light optic fibre stretches into in the eyepiece casing with spotlight lens combination is corresponding, the eyepiece casing with connection buckle links to each other and can rotate relatively, two inside and outside spaced conducting ring are installed to the front end of eyepiece casing be equipped with two anodal shell fragment and the negative pole shell fragment that the conducting ring corresponds respectively on the connection buckle, anodal shell fragment and negative pole shell fragment are connected with the anodal and the negative pole electricity of power supply battery respectively, the eyepiece casing with when connection buckle takes place relative rotation anodal shell fragment and negative pole shell fragment contact with the conducting ring that corresponds respectively all the time, and two conducting rings correspond respectively with the anodal shell fragment and negative pole electricity of LED lamp are connected respectively.

In the above technical scheme, the front end outside of eyepiece casing is provided with outside bellied annular connecting portion, the rear end middle part of connecting the buckle is equipped with connecting the slot, be equipped with spacing part on connecting the lateral wall of slot, the front end of eyepiece casing stretches into behind the connecting the slot through spacing part with annular connecting portion cooperation is in order to realize eyepiece casing and connecting the rotation of buckle and be connected.

In the above technical scheme, the condensing lens combination comprises a first plano-convex lens and a second plano-convex lens which are arranged at intervals, the convex surface of the first plano-convex lens and the convex surface of the second plano-convex lens are oppositely arranged, and an interval column is arranged between the first plano-convex lens and the second plano-convex lens.

In the above technical scheme, eyepiece casing comprises front end housing, first well shell, second well shell and backshell connection, just the front end housing with between the first well shell and between the first well shell with be provided with the sealing washer between the second well shell, have external screw thread portion on the backshell, the second well shell rear end has internal screw thread portion, external screw thread portion with internal screw thread portion spiro union cooperation, the front end housing with correspond the position on the first well shell and be provided with the screw perforation, on the second well shell with the screw perforation corresponds the position and be equipped with the screw hole, fastening screw passes the screw perforation with the screw hole cooperation, the conducting ring is fixed in the annular groove on the front end cap.

The invention has the positive effects that: according to the invention, the light source module is arranged in the eyepiece shell, and the optical fiber emitted by the light source module is transmitted to the front end of the lens tube through the light guide optical fiber, so that an external light source and an external optical cable are omitted, and when the endoscope is used, the eyepiece unit and the connecting buckle 6 can be connected in a relative rotation manner, so that the direction of the view angle of the head of the lens tube can be changed by rotating the eyepiece unit in the actual use process, the observation angle is changed, the lens tube does not need to be replaced in the use process, the complicated operation of replacing the lens tube is omitted, and the use convenience is improved.

Drawings

Fig. 1 is a cross-sectional view of an eyepiece unit (with a lens tube) according to the present invention;

fig. 2 is a perspective view of an eyepiece unit (with a lens tube) according to the present invention;

FIG. 3 is a schematic view of a clasp connected to an eyepiece system;

Fig. 4 is a perspective view of an endoscope according to the present invention.

The reference numerals shown in the figures are: 1-an eyepiece housing; 10-ring connection; 11-a front end cap; 12-a first middle shell; 13-a second middle shell; 14-a rear shell; 2-mirror tube; 21-a light-guiding optical fiber; 3-a light source module; 31-LED lamps; 32 a first plano-convex lens; 33-a second plano-convex lens; 34-spacer columns; 4-conducting rings; 5-tightening a screw; 6-connecting a buckle; 61-an anode shrapnel; 62—a negative electrode spring; 7-limiting parts.

Detailed Description

The specific structure of the endoscope in the present invention will be described below with reference to the accompanying drawings:

An endoscope with a built-in light source module is shown in fig. 1 to 4, and comprises a connecting buckle 6, an eyepiece unit and a lens tube 2 which are connected, wherein the eyepiece unit comprises an eyepiece shell 1, the inside of the eyepiece shell 1 is provided with a light source module 3, the inside of the lens tube 2 is provided with a light guide optical fiber 21 which extends along the length direction of the lens tube 2, the view angle of the head of the lens tube 2 is larger than zero degree, the existing commonly used lens tube 2 with the view angle larger than zero degree is a lens tube with the view angle of 30 degrees, 45 degrees and 70 degrees, the light source module 3 comprises an LED lamp 31 and a condensing lens combination, the tail end of the light guide optical fiber 21 stretches into the inside of the eyepiece shell 1 to correspond to the condensing lens combination, the eyepiece shell 1 is connected with the connecting buckle 6 and can rotate relatively, the front end of the eyepiece shell 1 is provided with two conductive rings 4 which are arranged at inner and outer intervals, positive pole spring pieces 61 and negative pole spring pieces 62 which are respectively corresponding to the conductive rings 4 are arranged on the connecting buckle 6, the positive pole spring pieces 61 and the negative pole spring pieces and the negative pole 62 are respectively corresponding to the positive pole spring pieces and the conductive ring 61 and the negative pole ring 62 which are respectively connected with the LED lamp 31 and the positive pole and the negative pole ring 4 respectively. According to the invention, the light source module is arranged in the eyepiece shell, the optical fiber emitted by the light source module is conducted to the front end of the lens tube through the light guide optical fiber, so that an external light source and an external optical cable are omitted, and when the endoscope is used, the eyepiece unit and the connecting buckle 6 can be connected in a relative rotation manner, so that the direction of the head view angle of the lens tube 2 can be changed by rotating the eyepiece unit in the actual use process, the observation angle is changed, the lens tube 2 does not need to be changed in the use process, the tedious operation when the lens tube 2 is replaced is omitted, and the use convenience is improved.

In this embodiment, an annular connection portion 10 protruding outwards is provided at the outer portion of the front end of the eyepiece housing 1, a connection slot 63 is provided in the middle of the rear end of the connection buckle 6, a limiting member 7 is provided on a side wall of the connection slot 63, and the front end of the eyepiece housing 1 extends into the connection slot 63 and then cooperates with the annular connection portion 10 through the limiting member 7 to realize rotational connection 6 between the eyepiece housing 1 and the connection buckle 6; the limiting member 7 is mounted in the connection slot 63 in an assembled manner.

Further, the condensing lens assembly includes a first plano-convex lens 32 and a second plano-convex lens 33 that are disposed at intervals, a spacing column 34 is disposed between the first plano-convex lens 32 and the second plano-convex lens 33, the convex surface of the first plano-convex lens 32 and the convex surface of the second plano-convex lens 33 are disposed opposite to each other, the spacing column 34 is tubular, and both ends thereof respectively abut against the first plano-convex lens 32 and the second plano-convex lens 33 so as to keep the first plano-convex lens 32 and the second plano-convex lens 33 at a certain interval.

In this embodiment, the eyepiece housing 1 is formed by connecting a front end cover 11, a first middle shell 12, a second middle shell 13 and a rear shell 14, a sealing ring is disposed between the front end cover 11 and the first middle shell 12 and between the first middle shell 12 and the second middle shell 13, an external threaded portion is disposed on the rear shell 14, an internal threaded portion is disposed at the rear end of the second middle shell 13, the external threaded portion is in threaded engagement with the internal threaded portion, screw holes are disposed at corresponding positions on the front end cover 11 and the first middle shell 12, screw holes are disposed at corresponding positions on the second middle shell 13 and the screw holes, a fastening screw 5 passes through the screw holes and engages with the screw holes, the conductive ring 4 is fixed in an annular groove on the front end cover 11, in the above structure, the front end cover 11, the first middle shell 12 and the second middle shell 13 are fixedly connected by the fastening screw 5, and the second middle shell 13 are connected by the screw connection, and the rear shell 14 are connected by the screw connection, and the eyepiece housing 1 is disposed to facilitate the inner assembly of the assembly.

It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While those obvious variations or modifications which come within the spirit of the invention remain within the scope of the invention.

Claims

1. The utility model provides an endoscope of built-in light source module, includes connecting buckle (6), eyepiece unit and mirror tube (2) that are connected, the eyepiece unit includes eyepiece casing (1), its characterized in that, eyepiece casing (1) is inside to be equipped with light source module (3), have in mirror tube (2) along mirror tube (2) length direction extension light guide optic fibre (21) that set up, the view angle of mirror tube (2) head is greater than zero degrees, light source module (3) include LED lamp (31) and spotlight lens combination, the terminal of light guide optic fibre (21) stretches into in eyepiece casing (1) with spotlight lens combination is corresponding, eyepiece casing (1) with connecting buckle (6) link to each other and can rotate relatively, eyepiece casing (1)'s front end is equipped with two inside and outside spaced conducting ring (4) be equipped with on connecting buckle (6) with positive pole (61) and negative pole shell fragment (62) that correspond respectively with conducting ring (4), positive pole shell fragment (61) and negative pole fragment (62) and battery (62) are connected with the positive pole shell fragment and negative pole fragment (4) that correspond respectively and electric shell fragment (6) are rotated respectively and are in relative when the rotation takes place respectively, and the two conducting rings (4) are respectively and correspondingly electrically connected with the anode and the cathode of the LED lamp (31).

2. The endoscope with the built-in light source module according to claim 1, wherein an annular connecting portion (10) protruding outwards is arranged outside the front end of the eyepiece housing (1), a connecting slot (63) is arranged in the middle of the rear end of the connecting buckle (6), a limiting component (7) is arranged on the side wall of the connecting slot (63), and the front end of the eyepiece housing (1) stretches into the connecting slot (63) and then is matched with the annular connecting portion (10) through the limiting component (7) so as to realize rotary connection of the eyepiece housing (1) and the connecting buckle (6).

3. The endoscope with the built-in light source module according to claim 1 or 2, wherein the condenser lens combination includes a first plano-convex lens (32) and a second plano-convex lens (33) arranged at intervals, the convex surface of the first plano-convex lens (32) and the convex surface of the second plano-convex lens (33) are arranged opposite to each other, and a spacer column (34) is arranged between the first plano-convex lens (32) and the second plano-convex lens (33).

4. The endoscope with the built-in light source module according to claim 1 or 2, wherein the eyepiece housing (1) is formed by connecting a front end cover (11), a first middle shell (12), a second middle shell (13) and a rear shell (14), sealing rings are arranged between the front end cover (11) and the first middle shell (12) and between the first middle shell (12) and the second middle shell (13), an external thread part is arranged on the rear shell (14), an internal thread part is arranged at the rear end of the second middle shell (13), the external thread part is in threaded connection with the internal thread part, screw holes are arranged at corresponding positions on the front end cover (11) and the first middle shell (12), screw holes are arranged at corresponding positions on the second middle shell (13) and pass through the screw holes to be matched with the screw holes, and the conductive ring (4) is fixed in an annular groove on the front end cover (11).