WO2011152664A2

WO2011152664A2 - Object lens protector for surgical microscope

Info

Publication number: WO2011152664A2
Application number: PCT/KR2011/004019
Authority: WO
Inventors: 추성호
Original assignee: Cho Seong Ho
Priority date: 2010-06-01
Filing date: 2011-06-01
Publication date: 2011-12-08
Also published as: WO2011152664A3; KR200450146Y1

Abstract

The present invention aims to provide an object lens protector for a surgical microscope, which is provided with a projection window fixed at a predetermined angle on a protective cover which covers the entire microscope, and the projection window is disposed on the body of the object lens protector, which is disposed under the object lens. As a result, the present invention eliminates the need to rotate the projection window in order to prevent light from a lighting lamp reflecting onto the area of the object lens, thereby allowing elimination of the elements required for rotating the projection window, which can improve the productivity of the object lens protector and reduce production costs therefor; promotes easier use as a result of being able to use a position setting portion which is provided on the body of the protector, and a position determining portion which is provided on the frame of the object lens for easily placing the protector on the frame of the object lens; and can resolve the inconvenience of a surgeon having to adjust the projection window through rotation, by setting and fixing the projection window at an angle so that light dos not reflect onto the area of the object lens when the protector is placed on the frame of the object lens. To this end, the protector of the present invention, which is provided on the protective cover (102) applied to the entire surgical microscope (101) for magnifying and observing the affected area of a patient, and which is coupled to the object lens frame (103) for protecting the object lens, comprises: a body (10) having on the lower end thereof an outward flange (11) that is coupled to the protective cover (102), a tilted surface (12) tapered to the upper end of the body, and a securing projection (13) that is tilted at the same angle as the tapered tilted surface (12) and protrudes from the inner surface of the upper end of the body; a coupling protrusion (20) that extends from the outer circumference of the body (10) and is formed in a protruding manner; a first cut portion (31) and a second cut portion (32) that perpendicularly cut open the body (10); an elastic hanging member (30) having a protrusion (33) on the upper end thereof, and which is provided between the first and second cut portions (31, 32); a projection window (40) which is secured on the securing projection (13) provided on the body (10), and which is fixed by means of the elastic hanging member (30) and a protrusion (33); and a position setting groove (50) provided on the outside end of the outward flange (11).

Description

Surgical microscope objectives

The present invention relates to an objective lens protective device of a surgical microscope, and more particularly, is mounted on a protective cover for laying the outside of the microscope to configure the viewing window of the protective device inclined to precisely couple the protective body to the objective lens to illuminate the objective lens. The present invention relates to an objective lens protector of a surgical microscope which prevents light from being reflected to an alternative lens side and improves airtightness between the viewing window and the protective body.

In general, microscopic surgery for diseases such as cerebral disease, spinal disease, spinal stenosis, oral cancer, thyroid cancer, and the like are used in a surgical microscope for observing the surgery in detail, and the operator uses a microscope objective lens close to the affected area. The patient's affected area is operated through an alternative lens, and the surgical microscope is covered with a protective cover that covers the outside of the microscope to prevent the patient's blood or other dirt from splashing on the microscope during surgery. The objective lens protection device located in the objective lens of a microscope is comprised.

The objective lens protection device is composed of a cover frame coupled to the lens frame of the objective lens, and an objective lens protector mounted on the bottom of the cover frame, and the objective lens protector is composed of a transparent viewing window to enlarge the affected part through the objective lens. This allows the operator to identify through alternative lenses.

However, the objective lens protector used in the related art, as the viewing window configured in the objective lens protector is positioned and mounted horizontally with the objective lens, an illuminating light used to illuminate the affected part of the patient is provided by the operator's alternative lens by the viewing window of the protector. By reflecting to the side there is a problem that the operator is not easy to observe the affected part accurately.

Meanwhile, objective lens protective devices have been devised to solve the problem caused by the reflection of the illumination light.

As a prior art, an objective lens protective cover of a microscope, which is disclosed in Korean Patent Laid-Open Publication No. 10-2001-0073266, has been conceived, which is a frame fitted to an objective lens frame of a microscope, and an objective lens protective cover is installed below the frame. The cover is installed in the interior of the cover, the cover is installed to be rotated so as to adjust the installation angle, and the knob is configured to rotate the transparent cover.

As another example, a microscope drape lens cover system and assembly method, which is disclosed in Korean Patent Laid-Open Publication No. 10-2009-0101922, has been devised, which is a microscope drape system, and a drape positioned to provide a protective barrier between the microscope and the surgical surroundings, A coupling member formed of a flexible material and configured to couple the drape to the objective lens barrel of the microscope, and a lens housing formed of a relatively rigid material and coupled to the coupling member, the lens housing being adjacent to the cylindrical annular surface and the inwardly extending flange of the coupling member. A transparent protective lens disposed within the lens housing, the lens housing comprising an outwardly extending flange placed therein, wherein the geometric normal of the transparent protective lens is accommodated in the objective barrel when the lens housing is coupled to the objective barrel; A transparent protective lens arranged to form an angle with respect to the axis, A fitting portion formed of a relatively rigid material and disposed between the outwardly extending flange of the housing and the inwardly extending flange of the coupling member, the fitting portion being frictionally adjacent the coupling member to prevent the fitting from rotating relative to the coupling member. Retained, the fitting being configured to allow rotation of the lens housing relative to the engagement member.

The prior art of such a configuration forms a tapered inclined groove on the inner surface of the protective body to which the transparent cover or the transparent protective lens (commonly referred to as a viewing window) are coupled, and attaches the viewing window to the inclined groove, and then rotates the viewing window. This is to prevent the reflection on the alternative lens side.

However, since the prior art is configured to prevent the illumination light from being reflected to the alternative lens side by rotating the see-through window, a tapered inclined groove for rotating the see-through window must be formed on the inner surface of the protector, thereby forming the protector. There is a problem that the workability is greatly reduced.

In addition, since the knob extending from the viewing window must be formed on the outer surface of the viewing window in order to rotate the viewing window, it causes the price increase of the viewing window and the airtightness between the viewing window and the protective body is inferior by the knob of the viewing window. The phenomenon that blood or dirt discharged from the water splashes to the objective lens side occurs.

The present invention has been made to solve the problem with the objective lens protector configured in the protective cover for protecting the conventional surgical microscope, to form the upper end of the protective body body to which the viewing window is coupled to the tapered inclined surface so that the viewing window is inclinedly coupled It is possible to prevent the illumination light of the lighting lamp that illuminates the affected part, even if the viewing window is not rotated, by combining the protective body with the viewing window slantedly coupled with the objective lens of the lighting lamp fixed to a certain position. In addition, the airtightness between the sight glass and the protective body is maintained by not forming a knob in the sight glass, and the tapered inclined groove is not formed in the protective body to induce a reduction in production cost and productivity of the protective body. Objective of surgical microscope which we made To provide a reserve's it is an object.

The objective lens protective device of the surgical microscope of the present invention as a means for achieving the above object, is configured in the protective cover that covers the entire surgical microscope for magnifying and viewing the affected part of the patient coupled to the objective lens frame to protect the objective lens In the protective device, the outward flange is joined to the protective cover is formed at the bottom and the tapered inclined surface is formed on the upper end and the mounting projection is inclined at the same inclination angle as the tapered inclined surface on the upper inner surface; A fastening protrusion extending from an outer circumference of the body and protruding from the outer periphery of the body; An elastic hook piece formed between the first and second cutouts for vertically cutting the body and the first and second cutouts, the protrusion having a protrusion formed at an upper end thereof; A viewing window seated on a seating jaw formed in the body and fixed by a locking protrusion of the elastic hook piece; It includes a positioning groove formed on the outer end of the outward flange.

The objective lens protector of the surgical microscope of the present invention is configured in a protective cover covering the entire microscope to protect the viewing window configured in the body of the objective lens protector positioned below the objective lens and fixed at an inclined angle. By not having to rotate the viewing window to prevent the illumination light of the lamp from being reflected to the alternative lens side, the components for rotating the viewing window can be omitted, leading to an increase in productivity and reduction of production cost of the objective lens protector. In addition, the positioning portion formed on the protective body and the positioning portion formed on the objective lens frame make it easy to use the protective device on the objective lens frame to facilitate the use and to prevent the illumination light from being reflected to the alternative lens side during installation. The angle of view is fixed by the operator by setting and fixing the inclination angle Disappear by adjusting the rotation, or discomfort that.

1 is a perspective view of the objective lens protector of the present invention surgical microscope coupled to the surgical microscope.

Figure 2 is a bottom perspective view of the objective lens protective device of the present inventors coupled to the objective lens of the surgical microscope.

Figure 3 is a bottom perspective view of the objective lens protector of the present invention coupled to the objective lens frame of the surgical microscope.

Figure 4 is an exploded perspective view showing the configuration of the objective lens protective device of the present inventors surgical microscope.

Figure 5 is a cross-sectional view showing the configuration of the objective lens protective device of the present inventors surgical microscope.

Figure 6 is a combined configuration of the objective lens protective device of the present inventors coupled to the objective lens frame.

Figure 7 and Figure 8 is a bottom view showing the coupling state of the objective lens protective device and the objective lens frame of the present invention surgical microscope, respectively.

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, the term or word used in the present specification and claims is based on the principle that the inventor can appropriately define the concept of the term in order to best describe the invention of his or her own. It should be interpreted as meanings and concepts corresponding to the technical idea of

As shown in the present invention, the objective lens protective device of the surgical microscope, the objective lens frame to protect the objective lens is configured in the protective cover 102 for covering the whole of the surgical microscope 101 for magnifying and observing the affected part of the patient Regarding the protective equipment coupled to (103), the outward flange 11 to be bonded to the protective cover 102 is formed at the bottom and the tapered inclined surface 12 is formed on the upper end and the tapered inclined surface 12 on the upper inner surface A body 10 having a seating jaw 13 which is inclined at the same inclination angle as the protrusion 10, a fastening protrusion 20 protruding from the outer periphery of the body 10, and a vertical incision of the body 10; An elastic hook piece 30 formed between the first and

second cutouts

31 and 32 and the first and

second cutouts

31 and 32 and protruding with a locking protrusion 33 at an upper end thereof; It is seated on the seating jaw 13 formed in the body 10 by the locking projection 33 of the elastic hook piece 30 The viewing window 40 to be fixed, and the positioning groove 50 formed on the outer end of the outward flange 11 is included.

The inclined surface 12 formed at the upper end of the body 10, as shown in Figure 5 forms a tapered inclined angle (a) at a predetermined angle, the seating jaw 13 protruding on the upper inner surface of the body 10 ) Is tapered along the upper inner surface of the body 10 at the same inclination angle as the inclined surface 12, it is seated on the seating jaw (13) and to the engaging projection 33 of the elastic hook piece (30) The see-through window 40 is fixed by the inclined surface 12 and the seating jaw 13 is inclined.

Therefore, when the body 10 is coupled to the objective lens frame 103, the lower portion of the objective lens frame 103 in a state in which the viewing window 40 configured on the body 10 is inclined as shown in FIG. Because it is located on the side, unlike the objective lens protector that is used to adjust the inclination angle of the viewing window according to the conventional rotating the viewing window, simply by using the body 10 to combine the objective lens frame 103 Usability is improved.

The see-through window 40 is forced into the elastic hanger piece 30 side from the outer side of the elastic hanger piece 30 of the body 10, as shown in FIG. The elastic hook piece 30 is formed to be cut from the body 10 by the first and

second cutouts

31 and 32 formed on both sides as shown in the figure, so that the elastic hook piece 30 is self-elastic. When the see-through window 40 is drawn inward from the outer direction of the elastic hook piece 30 inwardly, the elastic hook piece 30 is opened outward and the see-through window 40 is completely elastic hook piece ( 30 is inserted into the inner direction of the elastic hook piece 30 is restored to its original position by its elasticity again and the engaging projection 33 protruding on the top of the elastic hook piece 30 is the surface of the viewing window 40 By hooking the see-through window 40 is locked by the elastic hook piece (30).

The present invention does not need to adjust the inclination angle of the see-through window 40 after the see-through window 40 is fixed in the inclined state and coupled to the objective lens frame 103, and the inclination angle of the see-through window 40 is adjusted. Since the degree should be fixed in a state set to match the objective lens frame 103, a positioning unit 61 in which the positioning groove 50 is positioned is further formed on the bottom surface of the objective lens frame 103. The inner surface of the objective lens frame 103 is further provided with a fastening portion 60 to which the fastening protrusion 20 formed on the outer circumference of the body 10 is fastened.

The fastening part 60 may include a first groove 60a vertically recessed in an inward direction of the objective lens frame 103 at a lower surface of the objective lens frame 103 and at an upper end of the first groove 60a. It is formed of a second groove (60b) extending horizontally in one direction.

Therefore, after the positioning groove 50 formed in the outward flange 11 of the body 10 to match the position of the positioning unit 61 of the objective lens frame 103 as shown in FIG. When the body 10 is introduced into the lower inner side of the objective lens frame 103, the fastening protrusion 20 protruding from the outer circumferential surface of the body 10 is the fastening part 60 of the objective lens frame 103. When the body 10 is rotated as shown in FIG. 8 in the state in which the vertically inserted into the first groove (60a) side to form a fastening protrusion 20 is vertically inserted into the inside of the first groove (60a) is fastened The protrusion 20 is fastened and fixed by being drawn toward the second groove part 60b formed horizontally with the first groove part 60a.

As such, the inclination angle of the viewing window 40 in the state in which the body 10 is fastened and fixed to the objective lens frame 103 is emitted from the illumination lamp of the objective lens by the viewing window 40 to reflect to the alternative lens side. It is possible to maintain the most suitable angle to prevent the transmission, only by coupling the body 10 to the objective lens frame 103 can prevent the reflection of the illumination light to the alternative lens side is greatly improved usability.

As described above, the present invention has been described with reference to a preferred embodiment of the present invention as being capable of various modifications, but the present invention is not limited to such an embodiment, and the embodiment is simply applied in combination with the known art. Together with the claims and the detailed description of the present invention it will be seen that the technology that can be used by those skilled in the art that the present invention belongs to be included in the technical scope of the present invention.

Claims

In the protective device is configured on the protective cover 102 for covering the entire surgical microscope 101 to enlarge and observe the affected part of the patient coupled to the objective lens frame 103 to protect the objective lens,

The outward flange 11 joined to the protective cover 102 is formed at the bottom, and the tapered inclined surface 12 is formed at the upper end, and the seating jaw 13 inclined at the same inclination angle as the tapered inclined surface 12 on the upper inner surface. The protruding body 10;

A fastening protrusion 20 extending from an outer circumference of the body 10 and protruding from the body 10;

The first and second incisions 31 and 32 for vertically cutting the body 10 and the first and second incisions 31 and 32 are formed between the protrusions 33 formed on the upper end. Elastic hook piece 30;

A sight glass 40 seated on a seating jaw 13 formed in the body 10 and fixed by a locking protrusion 33 of the elastic hook piece 30;

Objective lens protective device of the surgical microscope, characterized in that it comprises a positioning groove 50 formed on the outer end of the outward flange (11).
The method according to claim 1,

On the lower surface of the objective lens frame 103, a positioning unit 61 in which the positioning groove 50 is positioned is further formed, and on the inner surface of the objective lens frame 103, the outer circumference of the body 10 The fastening part 60 to which the fastening protrusion 20 formed on the part is further formed,

The fastening part 60 may include: a first groove part 60a vertically recessed in an inward direction of the objective lens frame 103 at the bottom surface of the objective lens frame 103;

Surgical objective lens of the surgical microscope, characterized in that formed in the second groove (60b) extending horizontally in one direction from the upper end of the first groove (60a).