JPH0442813U

JPH0442813U -

Info

Publication number: JPH0442813U
Application number: JP8365690U
Authority: JP
Priority date: 1990-08-09
Filing date: 1990-08-09
Publication date: 1992-04-10

Description

[Brief explanation of the drawing]

第１図は本考案による、提供者の角膜を固定す
る装置の部分縦断概略図、第２図は第１図の装置
の挟持具を示す図、第３図は第１図の装置の挟持
具の頂面図、第４図は第１図の装置の挟持具の左
側面図、第５図はその横軸に対し１８０°にわた
つて回転された第１図の装置の部分横断面図であ
る。１……ハウジング、２……底部、３……支持体
、４……挟持具、５……加圧端部、６……被駆動
端部、７……中央部分、８……溝、９……ワツシ
ヤ、１０……細長溝、１１……キヤリア、１２…
…デイスクスプリング、１３……突起、１４……
付加溝、１５……ハウジング凹所。 FIG. 1 is a partial longitudinal cross-sectional schematic diagram of a device for fixing a donor's cornea according to the present invention, FIG. 2 is a view showing a clamping tool of the device of FIG. 1, and FIG. 3 is a diagram of a clamping tool of the device of FIG. 1. 4 is a left side view of the clamping device of the device of FIG. 1, and FIG. 5 is a partial cross-sectional view of the device of FIG. 1 rotated through 180° about its transverse axis. be. DESCRIPTION OF SYMBOLS 1... Housing, 2... Bottom part, 3... Support body, 4... Clamping tool, 5... Pressure end part, 6... Driven end part, 7... Center part, 8... Groove, 9 ...Watshiya, 10...Elongated groove, 11...Carrier, 12...
...Disc spring, 13...Protrusion, 14...
Additional groove, 15...Housing recess.

Claims

[Claims for Utility Model Registration] 1. A housing comprising a hollow cylindrical housing 1 having a bottom portion 2 and a clamping fixture having a support 3 for the cornea, the clamping fixture being located in the center of the cylindrical housing 1. In the apparatus for fixating the donor's cornea, the clamping fixture comprises a plurality of clamping fixtures 4 housed in a cylindrical housing 1 and equidistantly spaced around a support 3. each of the clamps has a pressure end 5 and a driven end 6, and the pressure end 5 of the clamp 4 is in contact with the support 3 to secure the cornea in place. The central part 7 of the clamping device 4 is defined by an elongated hole provided in the cylindrical housing 1 tangentially to the bottom 2 and the support 3. a spring formed and received in the groove 8 from which the driven end 6 of the clamp 4 extends and which is further adapted to press the pressure end 5 of the clamp 4 against the support 3; Means and a mechanism are provided for simultaneously rotating the plurality of clamps 4 about their central portions 7, said mechanisms interacting with the driven ends 6 of the clamps 4 extending from the grooves 8. A device for fixing a donor's cornea, characterized in that the cornea of the donor is curved. 2. A mechanism for simultaneously rotating the clamping tools 4 includes a washer 9 coaxially disposed on the cylindrical housing 1, and the washer has a slot 10 formed in the washer 9 in a tangential direction with respect to its center. have,
Said slot 10 receives the driven end 6 of the clamp 4, and the mechanism further comprises a carrier 11 connected to the washer 9 for rotating the washer 4 about its own axis. 2. The device for fixing a donor's cornea according to claim 1. 3 a disk housed in the cylindrical housing 1 in which the spring means essentially interact with the washer 9 and press the driven end 6 against said washer and the pressure end 5 against the support 3; 3. A device for immobilizing a donor's cornea according to claim 2, characterized in that it is a spring (12). 4 The central part 7 of each clamp 4 has an additional groove 14 formed by the bottom 2 and an elongated groove provided in the cylindrical housing 1 substantially at right angles to the groove 8 for the central part 7 of the clamp 4. at least 1 housed in
The device for fixing the donor's cornea according to claim 1, characterized in that it has two protrusions (13). 5. Fixing the donor's cornea according to claim 1, characterized in that the support 3 of the clamping fixture is removable and is arranged in a central hole provided in the bottom 2 of the cylindrical housing 1. device to do. 6. A recess 15 is formed in the center of the cylindrical housing 1, and a pressure end 5 contacts the surface of the recess 15 when said recess is in the expanded state relative to the support 3.
A device for fixating a donor's cornea according to claim 1, characterized in that it conforms to the shape of. 7. Fixing the donor's cornea according to claim 1, characterized in that the central portion 7 of the clamping device 4 is arranged at right angles to the plane of the hook-shaped pressure end 5 of the clamping device 4. Device. 8 The hook of the pressurizing end 5 of the clamping tool 4 is attached to the support 3
2. The device for fixing a donor's cornea according to claim 1, wherein the device is formed such that its tip is positioned perpendicular to the surface of the support when pressed against the device.