CN204033587U

CN204033587U - Sclera telltale mark device

Info

Publication number: CN204033587U
Application number: CN201420258883.1U
Authority: CN
Inventors: 姚克; 张凯
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2014-05-20
Filing date: 2014-05-20
Publication date: 2014-12-24
Anticipated expiration: 2024-05-20

Abstract

This utility model relates to sclera telltale mark device.The marker that object is to provide should be able to the scope of labelling scleral flap accurately, and has structure feature simple and easy to use.Technical scheme is: sclera telltale mark device, is characterized in that: this marker comprises handle and is positioned at handle front end and the labelling head of cross section similar " Qian " font; Described labelling head is rotatably positioned in handle front end by rotating shaft.

Description

Sclera telltale mark device

Technical field

This utility model relates to a kind of ophthalmic operating set, specifically trabeculectomy apparatus.

Background technology

Trabeculectomy is the filtering surgery of a kind of maturation for various constitutional, secondary angle closure and open angle glaucoma, mixed glaucoma, congenital glaucoma.Postoperative aqueous humor flows into the gap under conjunctiva and Tenon capsule by limbus of corneae filter mouth, major part is substantially absorbed into the surrounding tissues, and fraction merges through conjunctiva and tear film, or the Haemolymphoid around incision absorbs, thus effectively reduces intraocular pressure.

In trabeculectomy, after finishing conjunctival flap, need the scleral flap doing wide 3mm or 4mm, high 3mm or 4mm, 1/2 scleral thickness up, 1.5mm before boundary after limbus of corneae stripping to limbus of corneae.Usual operative doctor be all with cutter or cautery rule of thumb direct on sclera cut or burn labelling and do square Lamellar scleral flap, cutter deeply reaches sclera 1/2 thickness and the vertical scleral incision parallel with limbus of corneae from scleral flap cut trailing edge, respectively limbus of corneae is reached as a kerf according to cut again at its two ends, deeply reach 1/2 scleral thickness, a relief angle of then clamping scleral flap with corneal forceps, to cutting between previous crops Scleral shell, makes scleral flap.

The deficiencies in the prior art part is:

1, because the size of scleral flap is directly connected to postoperative filtration effect, therefore the notching edge of scleral flap should be vertically neat, and scleral flap can not occur breach or tear; This will seek medical advice and raw will try one's best when making the labelling of scleral flap scope with diamond cutter or cautery accurately, neatly, and this is for also difficult the operation for glaucoma doctor had wide experience, for abecedarian's very large test especially; As accurately the making of scleral flap then can not directly can be affected by estimated distance, and affect follow-up surgical effect;

2, in up-to-date coaxial micro-incision cataract ultrasonic emulsification associating trabeculectomy in late primary glaucoma, because cataractous otch is contracted to 2mm, the size of Trabecula resection scleral flap is also reduced to 3mm × 3mm, the size of trabecular resection is 1.8 ~ 2.0mm × 0.8 ~ 1.0mm, surgical injury can be reduced further, also be conducive to functional filtration; But for the experienced operative doctor of 4mm × 4mm scleral flap accustomed to using, change the procedure of adaptation using 3mm × 3mm scleral flap also to there is a learning curve into, easily cause scleral flap to make the deviation of size, directly affect subsequent operation and surgical effect.

Utility model content

The purpose of this utility model overcomes the deficiency in above-mentioned background technology, provides a kind of sclera telltale mark device, and this marker should be able to the scope of labelling scleral flap accurately, and has structure feature simple and easy to use.

The technical solution of the utility model is: sclera telltale mark device, is characterized in that: this marker comprises handle and is positioned at handle front end and the labelling head of cross section similar " Qian " font; Described labelling head is rotatably positioned in handle front end by rotating shaft.

Formed after three sheet-like plane of described labelling head bend two right angles continuously by a flaky metallic material, to be wherein parallel to each other and respectively perpendicular to the middle plane between two side panels at the side panels of both sides.

Two minor axises that described rotating shaft is arranged by coaxial line form, and two side panels are hinged on handle front end rotationally respectively by a minor axis, and the normal of two side panels respectively with minor axis parallel.

Described handle front end is the fixed mount of a semi-annular shape; One end of each rotating shaft is hinged on the end of fixed mount rotationally, and the other end is then fixed on the side panels of labelling head.

This utility model only needs strength a little to press the position of exerting pressure of labelling head needing to make on the position of scleral flap when using, can form obvious Qian font impression, be the labelling of scleral flap scope in scleral surface; If patient is conscious, marker bit is equipped with deviation, can repeat labelling, till reaching the satisfied scleral flap scope of patient; Then carry out the making of scleral flap along final impression, the uniformity of the neat of scleral flap edge and scleral flap size can be ensured, be conducive to the control and the observation that ensure the postoperative antihypertensive effect of glaucoma.

The beneficial effects of the utility model are:

1, in prior art, no matter be adopt diamond cutter or cautery to carry out labelling scleral flap scope, all have wound, cannot repeatedly use by labelling; And this utility model produces impression as labelling by labelling head, without any wound; If when patient is unsatisfied with label range, also repeatedly can carries out repeatedly labelling, not affect surgical effect;

2, in prior art, the use of cautery easily increases the weight of sclera reaction and easily forms cicatrix, and the formation for postoperative avascular filtering bleb is unfavorable; And this utility model mainly adopts physics impression principle to carry out labelling, this series of risk can be avoided;

3, after using this utility model to carry out labelling, the scleral flap scope that formed accurately and neat in edge, is conducive to control and the observation of subsequent operation and the postoperative antihypertensive effect of glaucoma;

4, this utility model is very easy to use, is conducive to shortening operating time, reduces operation in patients risk;

5, labelling head of the present utility model can be made into different size size, to facilitate the selection of different operation demand and different patient; And this utility model is made by medical metal material, solid durable, be applicable to autoclave sterilization.

Accompanying drawing explanation

Fig. 1 is main TV structure schematic diagram of the present utility model.

Fig. 2 is the plan structure schematic diagram of fixed mount and labelling head in Fig. 1.

Fig. 3 is the right TV structure schematic diagram of fixed mount and labelling head in Fig. 1.

Fig. 4 is that in Fig. 3, labelling head revolves the structural representation after turnback around the shaft.

Fig. 5 is that in Fig. 1, labelling head is rotated counterclockwise the structural representation after 30 degree around the shaft.

Detailed description of the invention

Below in conjunction with Figure of description, the utility model is described in further detail, but this utility model is not limited to following examples.

As shown in Figure 1, sclera telltale mark device, comprises handle 1 and labelling head 2; The front end of described handle is one for the bending section 1-1 (the angle α of bending section is 100 to 150 degree) of linkage flag head, in handle, the surface of rear end is shaped with the latticed decorative pattern 1-2 for increasing frictional force, and the tail end of handle is shaped with for pointing the depressed part 1-3 be affectedly bashful.

Described labelling head is rotatably positioned in handle front end by rotating shaft 4, and the cross section of this labelling head similar " Qian word " shape (as shown in Figures 2 to 4), its three sheet-like plane are by a flaky metallic material (preferred stainless steel substrates, thickness is generally 0.05-0.5mm) continuously bending two 90 degree (two right angles) formed afterwards, comprise the middle plane 2-1 of a rectangle, and be positioned at middle plane both sides two side panels 2-2 (two side panels are rectangle or right-angled trapezium); Two side panels are parallel to each other and perpendicular to middle plane.

The bottom (i.e. the base 2-2-1 of base 2-1-1 and two side panels of middle plane) of this labelling head is as being used for the position of exerting pressure producing impression at eye, same plane (top margin of the top margin of middle plane and two side panels also should be positioned at same plane) should be positioned at, it is of a size of 4mm × 4mm or 3mm × 3mm (namely the length on the base of middle plane and the base of two side panels is 4mm or 3mm), and also labelling head can be needed to make other sizes according to operation.Obviously, burr should be removed in this position of exerting pressure, and keeps smooth, to be applicable to the requirement of not damaged tissue.

For the curvature making labelling head can adapt to eyeball, described labelling head should be rotatably positioned in handle front end; Therefore, this utility model also comprises a fixed mount 3, and this fixed mount is semi-annular shape and is fixed on handle front end; This labelling head is rotatably positioned in fixed mount (labelling head can carry out 360 ° of rotations around the shaft) by rotating shaft; Described rotating shaft is made up of two minor axises and two minor axises arrange on the same axis (normal of two side panels respectively with minor axis parallel); One end of each minor axis is hinged on the end 3-1 of fixed mount rotationally and the other end fixes (preferred weld is fixed) on the side panels of labelling head (or one end of each rotating shaft is fixed on the end 3-1 of fixed mount and the other end is hinged on the side panels of labelling head rotationally).

Claims

1. sclera telltale mark device, is characterized in that: this marker comprises handle (1) and is positioned at handle front end and the labelling head (2) of cross section " Qian " font; Described labelling head is rotatably positioned in handle front end by rotating shaft (4).

2. sclera telltale mark device according to claim 1, it is characterized in that: formed after three sheet-like plane of described labelling head bend two right angles continuously by a flaky metallic material, the side panels (2-2) being wherein positioned at both sides is parallel to each other and respectively perpendicular to the middle plane (2-1) between two side panels.

3. sclera telltale mark device according to claim 2, it is characterized in that: two minor axises that described rotating shaft is arranged by coaxial line form, two side panels are hinged on handle front end rotationally respectively by a minor axis, and the normal of two side panels respectively with minor axis parallel.

4. sclera telltale mark device according to claim 3, is characterized in that: described handle front end is the fixed mount (3) of a semi-annular shape; One end of each rotating shaft is hinged on the end of fixed mount rotationally, and the other end is then fixed on the side panels of labelling head.