BD副流感病毒1/2型雙重核酸熒光試劑盒

廣州健侖生物科技有限公司

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BD副流感病毒1/2型雙重核酸熒光試劑盒

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【公司名稱】 廣州健侖生物科技有限公司
【市場部】     歐

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【騰訊  】 
【公司地址】 廣州清華科技園創(chuàng)新基地番禺石樓鎮(zhèn)創(chuàng)啟路63號二期2幢101-103室

（2）裂孔加壓不良：原因為加壓物比例不適當，加壓物方向選擇錯誤，沒有*封住存在明顯牽拉的裂孔。這就使網膜裂孔與脈絡膜間存在間隙，從而再次發(fā)生網脫。這就要求術后應及時觀察眼底，對裂孔與網膜嵴附貼不良，如存在魚嘴樣現象者，重新調整加壓物，使裂孔位于網膜嵴的前中部。必要時術后作光凝補充。

（3）增殖性玻璃體視網膜病變：是視網膜脫離復位手術zui終失敗的重要原因。術前存在增殖性玻璃體視網膜病變，手術沒能使網膜復位而加速發(fā)展。在這些情況下手術實際上加速了機化膜的形成，特別是手術合并出血或炎癥時。也有手術復位成功，以后因再次發(fā)生增殖性玻璃體視網膜病變和網膜脫離者，但臨床上不多見。那些裂孔封閉不良，網膜下液不能吸收或吸收緩慢，刺激網膜產生了增殖膜，同樣會導致視網膜脫離復位手術的失敗。

玻璃體切割術適用于哪些視網膜脫離？

雖然常規(guī)視網膜脫離手術作為絕大多數病人選擇的方式，但玻璃體切割手術的引入極大地拓寬了可治療的范圍。玻璃體切割術在某些病例中適應于初次手術，并非常規(guī)手術失敗后才可考慮使用，因為每作一次手術，視力預后就愈差。

看不清視網膜情況：多種原因可導致屈光間質混濁和瞳孔不能開大，看不到眼底，所以網膜脫離及裂孔情況不詳，治療困難。經B超及電生理檢查，確定有網脫，且視網膜功能良好時，應行玻璃體切割術，以便清除混濁的屈光間質，安全地開大瞳孔，改善眼底觀察，提高術后視力。

牽引性視網膜脫離：常由眼外傷及視網膜血管性疾病引起。玻璃體切割是牽引性視網膜脫離的手術方式。手術解除所有方向對視網膜的牽引，切開、分離增殖的血管膜，去除黃斑前膜。隨著牽引的解除，視網膜可良好復位。有時需作視網膜切開、排液及眼內光凝。

增殖性玻璃體視網膜病變視網膜脫離：增殖性玻璃體視網膜病變是導致網膜脫離復位手術失敗的主要原因。這一病變常發(fā)生于長期、陳舊性脫離網膜，眼內炎癥，視網膜脫離伴有玻璃體出血，巨大裂孔，多次網脫復位手術失敗或過度視網膜電凝、冷凝術后。這些情況應作玻璃體切割、剝膜，眼內排液，眼內氣體或硅油填充、眼內光凝及鞏膜環(huán)扎術，必要時作視網膜切開或切除，以松解網膜利于復位。

(2) bad hole pressure: the reason is not suitable for the proportion of pressurized material, pressurized material selection of the wrong direction, did not compley seal the existence of obvious pull the hole. This makes the gap between the retinal breaks and the choroid, thus re-occurrence of net off. This requires postoperative observation of the fundus should be promptly, the holes and the omentum ridge attached bad, such as the presence of fish-like phenomenon, re-adjust the pressure so that the hole in the anterior mesh membrane crest of the middle. If necessary, photocoagulation for postoperative replenishment.

(3) proliferative vitreoretinopathy: retinal detachment reduction surgery is the ultimate cause of failure. Preoperative presence of proliferative vitreoretinopathy, surgery failed to reset the retina and accelerate the development. Surgery in these situations actually accelerates the formation of mechanized membranes, especially when surgery is associated with bleeding or inflammation. There are also successful surgical resection, due to recurrence of proliferative vitreoretinopathy and retinal detachment, but clinically rare. Those holes closed poorly, subretinal fluid can not absorb or absorb slowly stimulate the omentum produced a proliferative membrane, the same will lead to the failure of retinal detachment surgery. The company is located in:

Vitrectomy for retinal detachment?

Although conventional retinal detachment surgery is the method of choice for the vast majority of patients, the introduction of vitrectomy vastly broadens the treatable range. Vitrectomy is adapted to primary surgery in some cases and is not considered after routine surgery fails, as the prognosis for vision deteriorates with each operation.

Can not see the situation of the retina: A variety of reasons can lead to refractive media opacity and pupil can not open large, can not see the fundus, so the retinal detachment and the hole is unknown, the treatment is difficult. The B ultrasound and electrophysiological examination to determine the network off, and the retina is good, should be performed vitrectomy in order to clear the cloudy refractive mesenchyme, safely open large pupil, improve fundus observation, improve postoperative visual acuity.

Tractive retinal detachment: often caused by ocular trauma and retinal vascular disease. Vitrectomy is the best surgical procedure for traumatic retinal detachment. Surgery to lift all directions of the retina traction, incision, separation of proliferating vascular membrane, remove the macular membrane. With the lifting of the traction, the retina can be well reset. Sometimes need for retinal incision, drainage and intraocular photocoagulation.

Proliferative vitreoretinopathy Retinal detachment: Proliferative vitreoretinopathy is the leading cause of failure of the retinal detachment surgery. This disease often occurs in the long-term, old from the omentum, intraocular inflammation, retinal detachment associated with vitreous hemorrhage, huge hole, multiple off-grid surgery failed or excessive retinal coagulation, condensation surgery. These cases should be vitrectomy, stripping, intraocular drainage, intraocular gas or silicone oil filling, intraocular photocoagulation and scleral cerclage, if necessary, retinal incision or resection, in order to release the omentum conducive to reset.