CN109488907B

CN109488907B - Handheld lighting device of sigmoidoscope

Info

Publication number: CN109488907B
Application number: CN201710813107.1A
Authority: CN
Inventors: 蔡益秋
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-09-11
Filing date: 2017-09-11
Publication date: 2020-08-28
Anticipated expiration: 2037-09-11
Also published as: CN109488907A

Abstract

The invention relates to a handheld lighting device of a sigmoidoscope, which comprises a handheld assembly and a lighting assembly arranged on the handheld assembly, wherein the handheld assembly is provided with a scope base, the lighting assembly is provided with a circuit substrate which is annular and positioned on the scope base, the circuit substrate is provided with a plurality of light-emitting elements and a touch switch at intervals around an inspection channel of the scope base, and a touch pressing piece of the touch switch protrudes into the range of a middle pipe hole of the circuit substrate. When the insertion tube of the disposable endoscope is inserted and combined with the handheld assembly, the insertion tube can automatically press the touch pressing piece of the touch pressing switch to start the illuminating assembly to provide illumination.

Description

Handheld lighting device of sigmoidoscope

Technical Field

The invention relates to an auxiliary operation appliance applied to a disposable medical appliance, in particular to a handheld lighting device of a sigmoidoscope.

Background

The structure design of the current sigmoidoscope operated by holding is shown in fig. 7, which comprises a lens base 90 for holding by a user, an eyepiece 91 and a connector 92 for observation are respectively arranged at the rear end and the front end of the lens base 90, the connector 92 provides a disposable speculum 93 connected to the front end of the lens base 90, the speculum 93 is a hollow plastic tube with light permeability and the front end forms a push catheter 94, and the connector 92 is provided with a catheter hole 95, and the catheter hole 95 provides functions of inflating, cleaning and sucking dirt in instruments. A handle 96 is extended from the base 90, and an external fiber-optic head 97 can be inserted into the handle 96 to provide an illumination function, or an illumination assembly (not shown) can be directly disposed inside the handle 96 to provide an illumination function.

The conventional sigmoidoscope adopts an illumination mode that a light source arranged on the handle 96 is projected to the tube body of the sight glass 93 after being refracted by a prism, so as to provide an illumination function when the sigmoidoscope enters the anus, the intestinal tract or other body cavities to be examined. However, the existing illumination structure design of the sigmoidoscope has at least the following problems in implementation and use:

1. the optical fiber head 97 or the illumination assembly mounted on the handle 96 must be opened or closed by the medical staff, but the medical staff often uses medical instruments to inflate, clean, suck dirt or administer medicine when using the sigmoidoscope to perform examination, and at the moment, the opening or closing of the illumination assembly is controlled by the switch, which is very troublesome and inconvenient.

2. The conventional light source is projected to the tube body of the sight glass 93 by the handle 96 in a refraction manner, and due to the limitation of the projection angle, the problem of uneven brightness of local brightness and local darkness is formed on the tube body of the sight glass 93, which easily affects the convenience and accuracy of the examination.

Disclosure of Invention

In order to solve the problems that the prior disposable sigmoidoscope lighting device needs to be controlled to be turned on and off by medical personnel through a switch and has poor lighting effect, the invention provides a handheld lighting device of a sigmoidoscope, which can automatically and directly start a lighting assembly to provide uniform and bright lighting effect when a speculum is combined, so as to solve the technical problems of the prior disposable sigmoidoscope lighting device.

The invention provides a handheld lighting device of a sigmoidoscope, which solves the technical problem and comprises:

the handheld component is provided with a microscope base and a handle connected to the microscope base, the microscope base is provided with a front-back through inspection channel, a positioning caulking groove is arranged at the middle section of the microscope base, and the handle is provided with a groove chamber communicated with the inspection channel; and

the lighting assembly is provided with a circuit substrate which is annular and is arranged on the mirror seat by utilizing the positioning caulking groove, the circuit substrate is provided with a middle pipe hole corresponding to the inspection channel, a plurality of light-emitting elements are arranged around the circuit substrate at intervals, the circuit substrate is electrically connected with a pair of wires extending to the groove chamber, and the pair of wires are electrically connected with more than one battery through a pair of electric connectors; the circuit substrate is provided with a touch switch, one side of the touch switch facing the middle pipe hole is provided with a touch part, and the end edge of the touch part protrudes towards the axis direction of the middle pipe hole and extends into the range of the middle pipe hole; therefore, when an inserting pipe of a sight glass is inserted through the middle pipe hole of the circuit substrate, the lighting assembly can be pressed against the contact pressing piece to be started.

Preferably, the lens base is provided with a flexible ring sleeve pad surrounding the inspection channel, the front end of the ring sleeve pad is provided with a ring wall embedded in the positioning embedding groove, and the circuit substrate is positioned at the front side of the ring wall.

Preferably, a lens cover is pivotally coupled to the rear end of the lens base, and the lens cover has a lens portion corresponding to the inspection channel.

Preferably, the handle is provided with a connector base at the lower end of the groove chamber for positioning the electric connector, and a handle cover for covering the lower end of the handle, and the handle cover forms a battery accommodating groove for accommodating the battery.

Preferably, the front end of the lens base is concavely provided with more than one clamping and embedding opening.

Preferably, the lens base has a two-section inner wall with a front section inner diameter larger than a rear section inner diameter, a step edge and a rib ring adjacent to the step edge are formed at the joint position of the two sections of inner walls, and the positioning caulking groove is formed between the step edge and the rib ring.

Preferably, the lens base is provided with a plurality of positioning pieces at intervals at the position of the rib ring, and the rear side of each positioning piece abuts against the circuit substrate.

The enhancement of the efficacy obtainable by the technical means of the present invention compared to the background art includes:

1. the circuit substrate of the lighting assembly of the invention surrounds the inspection channel of the microscope base, and the touch pressing piece of the touch pressing switch arranged on the circuit substrate protrudes into the middle tube hole range of the circuit substrate, when the disposable speculum is spliced and combined with the handheld assembly by the splicing tube, the disposable speculum can directly press the touch pressing piece of the touch pressing switch to start the lighting assembly to provide lighting, the operation and the use are quite simple and convenient, and the opening and closing of the lighting assembly are not required to be controlled by medical personnel by a switch, thus having deep practical benefit.

2. The illuminating assembly is provided with a plurality of light-emitting elements around the inspection channel of the endoscope seat, so that light sources of the light-emitting elements can be directly projected on the tube body of the disposable endoscope, a uniform and bright illuminating effect is generated, and the convenience and the accuracy of sigmoidoscope inspection are improved.

3. The handheld assembly and the sight glass are combined in a detachable mode, so that the structural design of the disposable sight glass is effectively simplified, different disposable sight glasses can be matched repeatedly for operation and use on the basis of safety and sanitation, the use cost of the sigmoidoscope is effectively reduced, the resource waste is saved, and the environment-friendly requirement is met.

4. The invention is provided with the flexible ring sleeve pad on the endoscope seat, which can improve the convenience and stability of the insertion combination of the disposable endoscope.

5. The lens part with the optical amplification function is arranged on the lens cover, so that the convenience of inspection and observation can be improved.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is an exploded view of the components of the preferred embodiment of the present invention.

FIG. 3 is a partial sectional structural view of the preferred embodiment of the present invention.

FIG. 4 is a schematic diagram illustrating the operation of the pressing member capable of pressing the pressing switch when the insertion tube of the disposable endoscope is inserted.

FIG. 5 is an assembled cross-sectional view of the preferred embodiment of the present invention.

Fig. 6 is a perspective view of another preferred embodiment of the lighting assembly of the present invention.

Fig. 7 is a schematic plan view of a prior art sigmoidoscope.

Description of reference numerals:

10 hand-held assembly 11 lens base

116 conduit connector 118 snap-fit port

14 scope cover 40 sight glass

41 screen panel 411 clamping and embedding part

The catheter is pushed 42.

Detailed Description

Referring to fig. 1 and 2, the lighting device for colonoscope comprises a handheld component 10 and a lighting component 20 disposed inside the handheld component 10, and a disposable speculum 40 can be detachably inserted into the handheld component 10 to form a complete colonoscope for operation.

The hand-held component 10 can be a one-piece structure formed integrally or a combined structure formed by a pair of

half shells

1A and 1B, but the invention is not limited in particular, and in the preferred embodiment shown in the figures, the hand-held component 10 is formed by a pair of

half shells

1A and 1B. The hand-held component 10 has a generally cylindrical lens base 11, a handle 12 connected to the lower side of the lens base 11, a ring sleeve pad 13 embedded in the lens base 11, a lens cover 14 combined with the rear end of the lens base 11, and a handle cover 15 combined with the lower end of the handle 12. Wherein:

as shown in fig. 2, 3 and 5, the lens holder 11 is a cylindrical structure with an axis position forming a through-going inspection channel 111, a positioning caulking groove 114 is formed on the inner wall of the middle section position of the lens holder 11, in the preferred embodiment as shown in the figure, the lens holder 11 has a two-section inner wall with a front section inner diameter larger than a rear section inner diameter, a step edge 112 is formed at the radial difference of the joining position of the two-section inner wall, an annular rib ring 113 and a plurality of positioning pieces 115 arranged at intervals are convexly arranged on the inner wall of the front section of the lens holder 11 adjacent to the step edge 112, and the positioning caulking groove 114 is formed between the step edge 112 and the rib ring 113. The side of the rear section of the lens base 11 is provided with a catheter adapter 116, the top of the rear end of the lens base 11 is provided with a pivot base 117, and the upper side and the lower side of the front end of the lens base 11 are correspondingly provided with a pair of embedding openings 118 for embedding and positioning the endoscope 40 when being inserted.

The handle 12 is integrally connected to the lower side of the lens holder 11 and has a hollow interior forming a chamber 121, the chamber 121 is connected to the inspection channel 111 through a channel 122, the handle 12 is provided with a joint seat 123 near the lower end, and the joint seat 123 is provided with a pair of protruding blocks 124.

The ring sleeve pad 13 is flexible and is sleeved on the inspection channel 111 of the lens base 11, the ring sleeve pad 13 is provided with a ring wall 131 which can be matched and embedded in the positioning embedded groove 114, so that the ring sleeve pad 13 can be firmly embedded and combined with the lens base 11, and the side edge of the ring sleeve pad 13 is provided with a through hole 132 corresponding to the conduit joint 116, so that the conduit joint 116 can pass through the through hole 132 and be communicated to the inspection channel 111;

the mirror cover 14 is made of transparent material and pivotally covers the rear end of the mirror base 11, the mirror cover 14 is provided with a pivot 141 on the top side for matching and pivotally connecting with the pivot base 117, and a lens portion 142 with optical amplification function is formed in the area corresponding to the inspection channel 111.

The handle cover 15 is snap-coupled to the lower end of the handle 12 and has a battery receiving groove 151.

Referring to fig. 2, 3 and 4, the lighting assembly 20 includes a ring-shaped circuit substrate 21, a plurality of light-emitting elements 22 disposed on the circuit substrate 21 in a surrounding manner at intervals, a touch switch 23 disposed on the circuit substrate 21, a pair of wires 24 electrically connected to the circuit substrate 21, a pair of electrical connectors 25 electrically connected to the wires 24, and more than one battery 30; wherein, the circuit substrate 21 is embedded in the positioning embedding slot 114 of the lens base 11 to surround the inspection channel 111, and a middle tube hole 211 corresponding to the inspection channel 111 is formed on the circuit substrate 21; in the preferred embodiment shown in the figures, each light emitting device 22 is a six-piece package Light Emitting Diode (LED) and is disposed around the front side of the circuit substrate 21 at equal intervals; the touch switch 23 is disposed on the circuit substrate 21 to control the on/off of the lighting assembly 20, the touch switch 23 is disposed with a touch member 231 on a side facing the middle tube hole 211, and an end edge of the touch member 231 protrudes toward the axis of the middle tube hole 211 and extends into the middle tube hole 211; the pair of wires 24 are electrically connected to the circuit substrate 21 and extend to the chamber 121 through the passage 122; the pair of electrical connectors 25 are correspondingly electrically connected to the pair of wires 24 and are fixed to the connector base 123 by the pair of protruding locking blocks 124; in the preferred embodiment shown in the figures, the one or more batteries 30 are two environmentally friendly button batteries and are inserted into the battery slots 151 to electrically connect the pair of electrical connectors 25.

The sight glass 40 is a light-permeable hollow plastic tube structure, and the axis position forms an inspection channel, the sight glass 40 includes a screen board 41 which is positioned at the rear end and vertically extends, a push conduit 42 which is connected with the screen board 41 and extends forwards, and an insertion tube 43 which is combined with the rear end of the push conduit 42; wherein, the screen panel 41 is provided with a pair of engaging portions 411 at the upper edge and the lower edge of the rear side, as shown in fig. 1 and 5, the pair of engaging portions 411 can be engaged with the pair of engaging openings 118 of the handheld component 10 in a matching manner, so that the sight glass 40 can be stably inserted into and combined with the handheld component 10; the inserting tube 43 is located at the rear end of the sight glass 40 and is in a light-tight shape, the front end of the inserting tube 43 is fixedly connected to the inspection channel of the sight glass 40, when the sight glass 40 is assembled and connected to the lens base 11, as shown in fig. 1, 2 and 5, the rear end of the inserting tube 43 can be inserted and connected to the front section of the ring sleeve pad 13 through the circuit substrate 21, and the ring sleeve pad 13 is designed to be a flexible material, so that the inserting tube 43 can be conveniently and stably inserted and connected to the lens base 11.

Referring to fig. 3, 4 and 5, the contact member 231 of the contact switch 23 of the lighting assembly 20 of the present invention protrudes into the middle tube hole 211 of the circuit substrate 21, and when the rear end of the plugging tube 43 passes through the circuit substrate 21, the rear end of the plugging tube 43 presses against the contact member 231 of the contact switch 23 to start the light emitting elements 22 of the lighting assembly 20 to generate light.

Referring to FIG. 6, another preferred embodiment of the lighting assembly 20A of the present invention is shown, in the embodiment shown in the figure, each light emitting device 22A is implemented by a surface mount Light Emitting Diode (LED), and the structural design of other components is the same as that of the above preferred embodiment, and will not be repeated.

Referring to fig. 1 to 5, the circuit substrate 21 of the illumination assembly 20 of the present invention surrounds the inspection channel 111 of the scope base 11, and the touch pressing member 231 of the touch switch 23 protrudes into the middle tube hole 211 of the circuit substrate 21, so that the illumination assembly 20 can be automatically activated to provide illumination while the endoscope 40 is plugged and combined with the handheld assembly 10 by the plugging tube 43, the operation is simple and convenient, and the medical staff does not need to control the illumination assembly by a specific switch, which fully meets the use requirement of sigmoidoscope inspection operation. The light emitting elements 22 of the illumination assembly 20 of the present invention are disposed around the circuit substrate 21 and correspond to the push tubes 42 of the speculum 40, and the insertion tubes 43 are designed to be light-tight, as shown in fig. 5, so that the light source generated by each light emitting element 22 can be directly projected forward to the push tubes 42 of the speculum 40 and uniformly distributed on the whole push tubes 42, thereby effectively providing an excellent uniform and bright illumination effect for the speculum 40.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and any person skilled in the art can appreciate that the technical features of the present invention can be modified or changed in some ways without departing from the scope of the present invention.

Claims

1. A handheld illumination device for a sigmoidoscope comprising:

the lighting assembly is provided with a circuit substrate which is annular and is arranged on the mirror seat by utilizing the positioning caulking groove, the circuit substrate is provided with a middle pipe hole corresponding to the inspection channel, a plurality of light-emitting elements are arranged around the circuit substrate at intervals, the circuit substrate is electrically connected with a pair of wires extending to the groove chamber, and the pair of wires are electrically connected with more than one battery through a pair of electric connectors; the method is characterized in that:

the circuit substrate is provided with a touch switch, one side of the touch switch facing the middle pipe hole is provided with a touch part, and the end edge of the touch part protrudes towards the axis direction of the middle pipe hole and extends into the range of the middle pipe hole; therefore, when an inserting pipe of a sight glass is inserted through the middle pipe hole of the circuit substrate, the lighting assembly can be pressed against the contact pressing piece to be started.

2. The handheld illuminator of a sigmoidoscope according to claim 1, wherein the base has a flexible ring pad surrounding the inspection channel, the front end of the ring pad has a ring wall embedded in the positioning caulking groove, and the circuit board is located at the front side of the ring wall.

3. A colonoscope handheld lighting fixture, as claimed in claim 2, wherein a scope cover is pivotally coupled to the rear end of said scope base, said scope cover having a lens portion corresponding to said inspection channel.

4. A sigmoidoscopy hand-held lighting apparatus according to claim 3 wherein said hand-held assembly is comprised of a pair of half shell halves.

5. The apparatus of claim 4, wherein the handle has a socket at a lower end of the chamber for receiving the electrical connector, and a handle cover covering the lower end of the handle, the handle cover forming a battery receiving groove for receiving the battery.

6. The handheld illuminator of a sigmoidoscope according to claim 5, wherein the base is recessed at the front end with more than one snap-in port.

7. The handheld illuminator of a sigmoidoscope according to any one of claims 1 to 6, wherein the base has two sections of inner walls with an inner diameter of the front section larger than the inner diameter of the rear section, a step edge and a rib ring adjacent to the step edge are formed at the junction of the two sections of inner walls, and the positioning caulking groove is formed between the step edge and the rib ring.

8. A colonoscope handheld lighting unit, as claimed in claim 7, wherein said scope base is spaced from said rib ring by a plurality of splines, each of which has a rear side abutting said circuit substrate.

9. The colonoscope handheld lighting fixture of claim 8, wherein the light emitting element is a plug-in package light emitting diode.

10. The colonoscope handheld lighting fixture of claim 8, wherein the light emitting element is a surface mount light emitting diode.