Device for applying a marking to the human eye

Abstract

A device for applying a marking to the human eye, in particular to the cornea of the eye, comprises a marking head comprising a marking element and a holding device carrying the marking head or an intermediate adapter. The marking head or the intermediate adapter has a bearing area which is rotatably mounted in a bearing ring of the holding device which surrounds the bearing area in a predeterminable or variable angular position.

Claims

1. A device for applying a marking to the cornea of a human eye, the device having a marking head and a holding device, wherein the marking head comprises a marking element, wherein the holding device comprises a bearing ring that is non-rotatably connected to a handle part that, in use, is grasped by a hand of an operator of the device, the bearing ring being configured to rotatably carry the marking head or an intermediate adapter such that the marking head or the intermediate adapter rotates and is oriented using gravity separate from an orientation of the handle part, wherein the marking head or the intermediate adapter includes a bearing area having a body, wherein the marking head comprising the marking element is rotatably inserted into the body of the bearing area to set the marking element in an angular position with respect to the bearing area and thereafter, in use, held there non-rotatably, wherein the bearing ring of the holding device encompasses the bearing area of the marking head or the intermediate adapter, and wherein the bearing area, which is set in the angular position with respect to the marking element, is rotatably mounted in the bearing ring of the holding device, wherein the angular position can be predetermined or changed.

2. The device according to claim 1, wherein a ball bearing is provided for mounting the bearing area of the marking head or the intermediate adapter in the bearing ring of the holding device or vice versa.

3. The device according to claim 2, wherein the ball bearing is made of stainless steel and/or ceramic.

4. The device according to claim 1, wherein the marking head and, if applicable, the intermediate adapter has a passage that, in a region of the marking element, terminates with a coaxial sighting tube.

5. The device according to claim 4, wherein the passage is a coaxial passage.

6. The device according to claim 1, wherein the marking element comprises two or four marking blades lying opposite to each other in pairs.

7. The device according to claim 6, wherein the marking blades are designed for marking a straight line or at least two points or sections of a straight line.

8. The device according to claim 6, wherein the marking blades are serrated.

9. The device according to claim 8, wherein the marking blades are at least partially curved to conform to an ocular surface of the eye.

10. The device according to claim 1, wherein the marking head can be set or adjusted in its angular position by hand or by way of a tool.

11. The device according to claim 1, wherein a marking ring of the of the marking head has a marking symbolizing the angular position and a scale ring of the marking head has a scale for indicating the angular position.

12. The device according to claim 11, wherein the scale for indicating the angular position is in the range of 0° to 180°.

13. The device according to claim 1, further comprising coupling means acting between the marking head and the holding device or the intermediate adapter.

14. The device according to claim 13, wherein the coupling means comprise a spring-tensioned means for mutual fixing or latching.

15. The device according to claim 1, wherein a conventional ophthalmological device serves as the holding device.

16. The device according to claim 15, wherein the conventional ophthalmological device serving as the holding device is a slit lamp.

17. The device according to claim 15, wherein the marking head is connected to the device via a coupling means or an adapter comprising a connector.

18. The device according to claim 1, wherein a hand-held ophthalmological instrument serves as the holding device.

19. The device according to claim 18, wherein the hand-held ophthalmological instrument serving as the holding device has a gravity-loaded pendulum receptacle for the marking head that is aligned in a horizontal or vertical direction.

20. The device according to claim 1, wherein the bearing ring is non-removably connected to the handle part.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

(1) In the drawings:

(2) FIG. 1 shows a schematic view of a first exemplary embodiment of a device according to the present disclosure in the form of a so-called pendulum marker, comprising a marking head with a marking element having two marking blades,

(3) FIG. 2 shows a schematic view, enlarged, of the marking head together with the holding device from FIG. 1,

(4) FIG. 3 shows a schematic view, from the rear side, of the device from FIG. 1,

(5) FIG. 4 shows a schematic side view of the device from FIG. 1,

(6) FIG. 5 shows a schematic side view, enlarged, of the device from FIG. 4,

(7) FIG. 6 shows a schematic side view of the device from FIGS. 1 through 5, enlarged, with the marking head pulled out,

(8) FIG. 7 shows a schematic view of the device from FIGS. 1 through 6, seen from the rear side of the holding device, without the marking head,

(9) FIG. 8 shows a schematic side view of the marking head of the device from FIGS. 1 through 7,

(10) FIG. 9 shows a schematic sectional view of the object from FIG. 8,

(11) FIG. 10 shows a schematic front view, that is, seen from the marking blades, of the object from FIGS. 8 and 9,

(12) FIG. 11 shows a schematic view, enlarged, of the marking head according to FIGS. 6 and 8,

(13) FIG. 12 shows a schematic view of a second exemplary embodiment of a device according to the present disclosure in the form of a so-called pendulum marker, comprising a marking head with a marking element having four marking blades,

(14) FIG. 13 shows a schematic view, enlarged, of the marking head together with the holding device from FIG. 12,

(15) FIG. 14 shows a schematic view, from the rear side, of the device from FIG. 12,

(16) FIG. 15 shows a schematic side view of the device from FIG. 12,

(17) FIG. 16 shows a schematic side view, enlarged, of the device from FIG. 15,

(18) FIG. 17 shows a schematic side view of the device from FIGS. 12 through 16, enlarged, with the marking head pulled out,

(19) FIG. 18 shows a schematic view of the device from FIGS. 12 through 17 seen from the rear side of the holding device, without the marking head,

(20) FIG. 19 shows a schematic side view of the marking head of the device from FIGS. 12 through 18,

(21) FIG. 20 shows a schematic sectional view of the object from FIG. 19,

(22) FIG. 21 shows a schematic front view, that is, seen from the marking blades, of the object from FIGS. 19 and 20, and

(23) FIG. 22 shows a schematic view, enlarged, of the marking head according to FIGS. 17 and 19.

DETAILED DESCRIPTION

(24) FIG. 1 shows an exemplary embodiment of a device according to the present disclosure, which in this case is a so-called pendulum marker. The pendulum marker comprises a marking head 1, which includes a marking element 2. The marking element 2 in turn has two marking blades 3, which are equipped with serrated contact surfaces 4.

(25) The marking blades 3 or the marking element 2 is firmly integrated in the marking head 1.

(26) Furthermore, a holding device 5 is provided which carries the marking head 1 or an intermediate adapter. The marking head 1 has a bearing area 6 that is rotatably mounted in a bearing ring 7 of the holding device 5 encompassing the bearing area 6 in an angular position that can be predetermined or changed.

(27) The marking head 1 is rotatably inserted by hand or tool into the body of the bearing area 6 and held there more or less non-rotatably, wherein the entire arrangement, that is, the marking head 1 and the bearing area 6, is arranged rotatably within the bearing ring 7 or extends all the way through it.

(28) The bearing ring 7 is firmly connected with an angled handle part 8 of a hand instrument.

(29) At the end of the marking head 1 that is opposite the marking blades 3 and extends with the bearing area 6 through the bearing ring 7, a pendulum 9 is provided which holds or aligns the marking head 1, which is rotatably mounted in the bearing ring 7, in its position (vertical or horizontal) as given by the pendulum 9. Regardless of how the handle part 8 is held, the pendulum 9 aligns the marking head 1 in the preset angular position.

(30) For setting or checking the preset angular position of the marking head 1, a scale ring 10 is provided as an outer ring on the marking head 1 and is equipped with a scale 18 in the range from 0° to 180°.

(31) The sleeve 11 forming the bearing area 6 has spring-tensioned means holding the marking head 1 inserted there in the respective angular position. A marking ring 12 is non-rotatably connected with the sleeve 11 and has a triangle, an arrow, a line, or the like as a marking that marks the angular position of the scale ring 10.

(32) Advantageously, the pendulum marker according to FIG. 1 can be disassembled into its components or its individual parts exchanged.

(33) FIG. 2 shows an enlarged view of the marking head 1 of the pendulum marker from FIG. 1. Here it can clearly be seen that between the two opposing marking blades 3 a sighting tube 13 is arranged which extends at least for a certain distance through the marking head 1. The entire arrangement has a co-axial passage that at the end opposite the marking element 2 is open to permit looking into or through it and in the direction of the marking element 2 opens out into the sighting tube 13. This enables a position on the eye to be targeted before the marking element 2 with its marking blades 3 is placed on the cornea of the eye in order to mark it.

(34) FIG. 2 clearly shows the configuration of the bearing area 6 or of the sleeve 11 carrying the bearing area 6, which is equipped with clamping means 14 for more or less non-rotatably fixing or clamping the marking head 1.

(35) FIG. 3 shows the object from FIG. 1 in a schematic view from the rear side, that is, facing away from the distal end. The coaxial passage 15 and the central sighting tube 13 can be seen. The marking blades 3 are arranged on both sides of the sighting tube 13.

(36) FIG. 4 shows the pendulum marker from FIG. 1 from a different angle. It is easy to see how the marking on the marking ring 12 shows the angular position on the scale ring 10 corresponding to the preset angular position of the marking head 1 or marker element 2 and thus of the marking blades 3.

(37) FIG. 5 shows the marking head 1 in an enlarged view corresponding to the preceding explanations.

(38) FIG. 6 shows the object from FIG. 5, wherein the marking head 1 is equipped with a plug-in sleeve 16 serving for insertion. The latter, overcoming the clamping force of the clamping means 14, can be plugged or pressed through the marking ring 12 into the sleeve 11 that forms the bearing area 6. The angular position of the marking head 1 can be changed by overcoming the clamping force of the clamping means 14, wherein the angular position is shown by the marking 17 on the marking ring 12 and the marking 17 points towards the opposite scale 18 on the scale ring 10.

(39) FIG. 7 shows the object from FIG. 6 from the rear side, with the marking head absent. The coaxial passage 15 is completely unobstructed.

(40) FIG. 8 shows the marking head 1 on its own with the outer scale ring 10 and also the scale 18. The marking element 2 with the two marking blades 3 is located at the distal end. The sighting tube 13 is arranged centrally.

(41) The plug-in sleeve 16 is located at the end of the marking head 1 opposite the distal end.

(42) FIG. 9 shows a sectional view of the object from FIG. 8. The arrangement and design of the sighting tube 13 can be seen. The outer scale ring 10 is made in one piece with the plug-in sleeve 16.

(43) FIG. 10 shows the object from FIGS. 8 and 9 from the distal end, wherein the coaxial sighting tube 13 and the marking blades 3 can be seen together with the serrated contact surfaces 4.

(44) FIG. 11 shows the marking head 1 in an enlarged view, wherein the arrangement of the sighting tube 13 is particularly easy to identify. The outer scale ring 10 is integrally formed with the plug-in sleeve 16, namely, for non-rotatable insertion into the previously mentioned sleeve 11, which forms the bearing area 6, which is rotatably mounted in the bearing ring 7.

(45) FIG. 12 shows a further exemplary embodiment of the pendulum marker from FIGS. 1 through 11, which differs from the exemplary embodiment from FIGS. 1 through 11 in that the marking element 2 has a total of four pairwise-opposing marking blades 3. The central sighting tube according to the exemplary embodiment from FIGS. 1 through 11 is not present there, wherein a rear-side view through the entire arrangement is possible. This exemplary embodiment has otherwise the same features as the exemplary embodiment from FIGS. 1 through 11, so that further detailed explanations are not required.

(46) FIG. 13 shows the exemplary embodiment from FIG. 12 with the marking head 1 enlarged. The marking element 2 with a total of four marking blades 3 is particularly easy to recognize here.

(47) FIG. 14 shows the object from FIGS. 12 and 13 from the rear side, wherein this view enables the coaxial passage 15 to be seen. The marking element 2 with the four marking blades 3 is arranged at the distal end.

(48) FIG. 15 shows the object from FIGS. 12 to 14 from a different angle, wherein the marking element 2 with the four marking blades 3 can also be seen.

(49) FIG. 16 shows the object from FIG. 15 in an enlarged view, wherein the marking element 2 with the four marking blades 3 appears in detail.

(50) FIG. 17 shows the exemplary embodiment from FIGS. 12 through 16 with the marking head 1 pulled out. Clearly visible is the plug-in sleeve 16 which can be inserted right through the marking ring 12 and into the sleeve 11 of the bearing area 6 while overcoming the clamping force of clamping means 14 and which can be fixed in an angular position. Regarding setting and reading off the angular position, to avoid repetition refer to the comments on the first exemplary embodiment.

(51) FIG. 18 shows the object from FIG. 17 without the marking head. The coaxial passage 15 is unobstructed.

(52) FIG. 19 shows the marking head 1 of the exemplary embodiment from FIGS. 12 to 18 with a marking element 2 that comprises a total of four marking blades 3.

(53) FIG. 20 shows a sectional view of the object from FIG. 19. Here, too, the four marking blades 3 are clearly visible. The scale ring 10 and the plug-in sleeve 16 are integral components of the marking head 1.

(54) FIG. 21 shows the object from FIGS. 19 and 20 from the distal end, namely the marking head 1. It can be clearly seen that the marking element 2 comprises a total of four marking blades 3.

(55) Finally, FIG. 22 shows the marking head 1 of the exemplary embodiment from FIGS. 1 to 21 in an enlarged view. The marking element 2 has four marking blades 3, each at the distal end, having contact surfaces 4 that are serrated. The term “contact surface” is to be understood in the broadest sense. It can also be a contact line or, due to the serrated design, contact points.

(56) With regard to other advantageous embodiments of the device according to the present disclosure, to avoid repetition, refer to the general part of the description and also to the accompanying claims.

(57) Finally, it should be expressly pointed out that the above-described exemplary embodiments of the device according to the present disclosure serve only to explain the claimed teaching, but they are not restricted to the exemplary embodiments.

LIST OF REFERENCE SYMBOLS

(58) 1 Marking head 2 Marking element 3 Marking blade 4 Contact surface, contact line, contact point (of the marking blade) 5 Holding device 6 Bearing area 7 Bearing ring 8 Handle part 9 Pendulum, weight 10 Scale ring 11 Sleeve (forms the bearing area) 12 Marking ring 13 Sighting tube 14 Clamping means 15 Coaxial passage 16 Plug-in sleeve 17 Marking (on the marking ring) 18 Scale

(59) The various embodiments described above can be combined to provide further embodiments. All of the U.S. patents, U.S. patent application publications, U.S. patent applications, foreign patents, foreign patent applications and non-patent publications referred to in this specification and/or listed in the Application Data Sheet are incorporated herein by reference, in their entirety. Aspects of the embodiments can be modified, if necessary to employ concepts of the various patents, applications and publications to provide yet further embodiments.

(60) These and other changes can be made to the embodiments in light of the above-detailed description. In general, in the following claims, the terms used should not be construed to limit the claims to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled. Accordingly, the claims are not limited by the disclosure.