CN2794483Y - Optic nerve scissors - Google Patents

Abstract

The utility model discloses a pair of optic nerve scissors, which is provided with a scissor body. The front end of the scissor body is a scissor opening, and the back end of the scissor body is a handle. An acute angle front angle is formed between the scissor opening and the edge long line of the scissor body. The utility model is characterized in that an acute angle back angle is also formed between the edge long line of the scissor body and the handle. As a medical ophthalmic surgery tool, the utility model is mainly applied to the enucleation of an eyeball. Downward pressing operation to tissues around optic nerves can be conveniently and flexibly realized. Thereby, a condition is created for obtaining maximum optic nerve length.

Description

Optic nerve is cut

Technical field this utility model belongs to ophthalmologic operation instrument medically, directly relates to the optic nerve that uses in the enucleation of eyeball and cuts.

It is the indispensable instrument of enucleation of eyeball that the background technology optic nerve is cut, and traditional optic nerve is cut it and cut body and clip does not have obvious boundary, cuts body and clip is in alignment, and this gives in enucleation of eyeball and obtains the longest optic nerve length and caused difficulty.People's optic nerve of having invented the clip bending is cut for this reason, and " foreign medical science " ophthalmology fascicle that Beijing Institute of Ophthalmology sponsors, the 4th volume 255-256 page or leaf in 2000 " obtain the longest optic nerve " introduction done in a literary composition to this in the enucleation of eyeball.It is 10-20 ° with cutting body along the angle of long line that the optic nerve of moderate bending is cut general clip, and obviously crooked optic nerve is cut general clip and cut body is 20-30 ° along the angle of long line.The optic nerve of this clip bending is cut to enucleation of eyeball convenience is provided, particularly the optic nerve of moderate bending is cut to obtaining maximum optic nerve length and has been created condition, yet find in using, this optic nerve cuts because the variation that the bending of clip brings angle between handle and clip, thereby influenced the operation of operation, in the time of particularly need firmly pressing down the optic nerve surrounding tissue in the grip, seeming especially can not be flexibly, operation easily, has increased the difficulty of operation to a certain extent.

The summary of the invention the purpose of this utility model will provide a kind of improved optic nerve to cut exactly, and what it can overcome effectively that the crooked optic nerve of existing clip cuts existence presses down dumb, the inconvenient drawback of optic nerve surrounding tissue operation.

The purpose of this utility model is achieved in that optic nerve cuts, and has the body of cutting, and cutting the body front end is that clip, rear end are handle, clip and cut body along forming the acute angle anterior angle between the long line, described cut state along formation acute angle relief angle between long line and the handle.

Optic nerve described in the utility model is cut, cut body along the preferred 10-60 of acute angle relief angle ° that forms between long line and the handle, further preferably 10-45 °.

This utility model since cut body formed the acute angle relief angle along between long line and the handle, thereby in enucleation of eyeball, can realize following press operation more convenient, neatly, thereby obtain maximum optic nerve length easily the optic nerve surrounding tissue.

Appended drawings is a structure principle chart of the present utility model, and the utility model is described in further detail below in conjunction with accompanying drawing.

Specific embodiment accompanying drawing shows structure of the present utility model, rotating shaft 4 is installed in body 3 centre positions of cutting that optic nerve is cut, the front end of cutting body 3 is that clip 2, rear end are handle 5, clip 2 and cut body 3 form acute angle anterior angle 1 between the long line, cut body 3 along formation acute angle relief angle 6 between long line and the handle 5.Cut the acute angle relief angle 6 along forming between long line and the handle 5 of body 3 and select 10-60 °, further select 10-45 °.For example, cut when making the moderate warp architecture when optic nerve, the acute angle anterior angle 1 along between the long line that can select clip 2 and cut body 3 is 15 °, selects to cut that acute angle relief angle 6 is 15 ° between the long line in edge of body 3 and the handle 5; Cut when making obvious warp architecture when optic nerve, the acute angle anterior angle 1 along between the long line that can select clip 2 and cut body 3 is 30 °, selects to cut the long line in edge of body 3 and the acute angle relief angle 6 between the handle 5 is 45 °.During operation, open handle 5, phase countershaft 4 clips 2 open simultaneously; Make clip 2 press to the optic nerve surrounding tissue to handle 5 application of forces, after the greatest length that obtains optic nerve, close up handle 5 drive clips 2 and close the optic nerve of clip greatest length.

Claims (3)

1, a kind of optic nerve is cut, has the body of cutting (3), cutting body (3) front end is that clip (2), rear end are handle (5), clip (2) and cut body (3) form acute angle anterior angle (1) between the long line, it is characterized in that: described cut body (3) along long line formation acute angle relief angle (6) also and between the handle (5).

2, optic nerve according to claim 1 is cut, and it is characterized in that: described acute angle relief angle (6) along forming between long line and the handle (5) of cutting body (3) is 10-60 °.

3, optic nerve according to claim 2 is cut, and it is characterized in that: described acute angle relief angle (6) along forming between long line and the handle (5) of cutting body (3) is 10-45 °.