CN107536670A - The stable valve of anterior chamber pressure in a kind of cataract surgery - Google Patents
The stable valve of anterior chamber pressure in a kind of cataract surgery Download PDFInfo
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Abstract
本发明涉及医疗器械领域，涉及维持眼科白内障手术中前房压力稳定的辅助装置，本发明利用隔膜式止回阀原理制备一种白内障术中前房压力稳定阀门，其主要由套管型阀体和关闭件组成，关闭件的上端贴附固定于阀体的上部内壁上，经实践使用，结果显示本阀门可有效维持手术器械进出时的前房压力及形态，减少手术并发症，尤其有利于减少术中对眼后段空间的扰动和术后视网膜脱离风险，对高度近视患者尤其有利，可显著地提高白内障手术的安全性及术后疗效，同时对减少患者疼痛、改善患者手术体验，及缩短白内障手术医生的学习曲线均具有重要作用，具有较高的临床实用价值。
The invention relates to the field of medical equipment, and relates to an auxiliary device for maintaining the stability of the anterior chamber pressure in ophthalmic cataract surgery. The invention uses the principle of a diaphragm check valve to prepare a valve for stabilizing the anterior chamber pressure in cataract surgery, which is mainly composed of a sleeve type valve body The upper end of the closing member is attached and fixed on the upper inner wall of the valve body. After practical use, the results show that the valve can effectively maintain the pressure and shape of the anterior chamber when surgical instruments enter and exit, reduce surgical complications, and are especially beneficial Reducing intraoperative disturbance to the posterior segment of the eye and the risk of postoperative retinal detachment is especially beneficial to patients with high myopia. It can significantly improve the safety and postoperative efficacy of cataract surgery, and at the same time reduce the pain of patients, improve their surgical experience, and Shortening the learning curve of cataract surgeons plays an important role and has high clinical practical value.
Description
技术领域technical field
本发明涉及医疗器械领域，涉及维持眼科白内障手术中前房压力稳定的辅助装置，具体涉及一种白内障术中前房压力稳定阀门。The invention relates to the field of medical equipment, and relates to an auxiliary device for maintaining stable anterior chamber pressure in ophthalmic cataract surgery, and in particular to a valve for stabilizing anterior chamber pressure in cataract surgery.
背景技术Background technique
超声乳化白内障手术或飞秒激光辅助白内障手术是目前临床眼科应用最为广泛的白内障手术治疗方式，其中，超声乳化白内障手术基本步骤包括：滴眼液表面麻醉及消毒，制作主切口，通过主切口在前房注入角膜内皮保护粘弹剂，制作角膜辅助侧切口，经主切口做环形撕囊及充分水分离，用超声乳化手柄在囊袋内将晶状体核分块乳化后吸除，通过注吸手柄吸除残留皮质，在晶状体囊袋内再注入角膜内皮保护粘弹剂，植入人工晶状体后吸除残留粘弹剂，水密或缝合主切口，水密侧切口；所述的飞秒激光辅助白内障手术基本步骤包括：滴眼液表面麻醉及消毒，用飞秒激光制作出主切口及侧切口，定位定量撕囊口位置及大小后行飞秒激光截囊，用飞秒激光均匀分割劈裂晶状体核后转向超声乳化手术台，经主切口在前房注入角膜内皮保护粘弹剂，用超声乳化手柄在囊袋内将核块乳化后吸除，后续步骤同超声乳化白内障手术；实践显示，在上述手术步骤中，手术器械反复进出前房，由于主切口直径较大，器械进出时灌注液外流频繁，如在超声乳化结束后超乳手柄退出前房时，以及完成皮质或粘弹剂抽吸后注吸手柄退出前房时均会造成灌注液外流，使前房压力无法保持稳定，出现前房变浅甚至消失的后果。Phacoemulsification cataract surgery or femtosecond laser-assisted cataract surgery is currently the most widely used cataract surgery treatment in ophthalmology. Inject corneal endothelial protective viscoelastic into the anterior chamber, make corneal auxiliary side incision, perform circular capsulorhexis and sufficient water separation through the main incision, use phacoemulsification handle to emulsify the lens nucleus in pieces in the capsular bag, and suck it out through the suction handle Absorb the residual cortex, inject the corneal endothelial protection viscoelastic agent into the lens capsule bag, absorb the residual viscoelastic agent after implanting the intraocular lens, watertight or suture the main incision, watertight side incision; the femtosecond laser assisted cataract surgery The basic steps include: surface anesthesia and disinfection of eye drops, making main incision and side incision with femtosecond laser, positioning and quantifying the position and size of capsulorhexis opening, and performing femtosecond laser capsulectomy, using femtosecond laser to evenly divide and split the lens nucleus Turn back to the phacoemulsification operating table, inject corneal endothelial protection viscoelastic agent in the anterior chamber through the main incision, and use the phacoemulsification handle to emulsify the nuclei in the capsular bag and then suck them out. The subsequent steps are the same as phacoemulsification cataract surgery; During the surgical procedure, surgical instruments repeatedly enter and exit the anterior chamber. Due to the large diameter of the main incision, perfusion fluid outflows frequently when the instruments enter and exit. When the injection and suction handle exits the anterior chamber, the perfusate will flow out, making the pressure in the anterior chamber unable to maintain stability, resulting in the anterior chamber becoming shallow or even disappearing.
研究表明，超声乳化白内障手术或飞秒激光辅助白内障手术中前房稳定性对于减少手术并发症，缩短手术时间具有至关重要的作用。在手术器械离开前房时，往往由于主切口自闭性并非完好或器械的撑开作用，造成灌注液流出，前房压力骤降甚至变浅消失，会产生以下不利影响：1）对眼后段空间造成很大扰动，加速患者玻璃体后脱离的发生，并增加对视网膜的牵拉，显著提高了白内障术后发生视网膜裂孔及视网膜脱离的风险，尤其是在高度近视等眼底本身情况就较差的高危人群中，这种影响更大；2）所述的灌注消失-再灌注往复的前房压力变化还会增加对眼内组织的压力性损伤和眼部的痛觉刺激；3）对于白内障手术初学者或技术不纯熟的术者来说，由于前房压力变化导致的术中意外情况如：超乳手柄即将而尚未撤出前房时脚踏便因手脚配合不协调提前回到0档，导致前房灌注提前消失，超乳针头划破抬高隆起的后囊，为此术者将较难独立处理或需花费更长的手术时间，增加了手术学习困难及心理压力，对于患者也带来不必要而应该避免的损伤。Studies have shown that the stability of the anterior chamber in phacoemulsification cataract surgery or femtosecond laser-assisted cataract surgery plays a vital role in reducing surgical complications and shortening the operation time. When the surgical instruments leave the anterior chamber, often due to the incomplete autism of the main incision or the expansion of the instruments, the perfusion fluid will flow out, and the pressure in the anterior chamber will suddenly drop or even become shallower and disappear, which will have the following adverse effects: 1) On the back of the eye The segmental space causes great disturbance, accelerates the occurrence of posterior vitreous detachment in patients, and increases the traction on the retina, which significantly increases the risk of retinal breaks and retinal detachment after cataract surgery, especially in patients with poor fundus conditions such as high myopia This effect is greater in high-risk groups; 2) The above-mentioned loss of perfusion-reperfusion reciprocating anterior chamber pressure changes will also increase pressure damage to intraocular tissues and ocular pain stimulation; 3) For cataract surgery For beginners or unskilled operators, intraoperative accidents caused by changes in anterior chamber pressure, such as: when the phacoemulsification handle is about to be withdrawn from the anterior chamber, the pedal returns to 0 gear ahead of time due to uncoordinated hands and feet, As a result, the anterior chamber perfusion disappears ahead of time, and the phacoemulsification needle cuts through the raised and raised posterior capsule. Therefore, it will be difficult for the operator to deal with it independently or it will take a longer operation time, which will increase the difficulty of surgical learning and psychological pressure, and bring great harm to the patient. Unnecessary damage that should be avoided.
虽然现代白内障手术越来越趋于微创，手术切口的减小在一定程度上改善了前房稳定性，但仍然无法避免如上所述的手术器械进出时前房压力的显著改变，导致术后并发症尤其是视网膜脱离的风险增加，同时患者的手术创伤与不良手术体验亦相应增加，迄今，尚未见有能方便维持白内障手术时前房压力稳定的医疗器械辅助装置。Although modern cataract surgery tends to be more and more minimally invasive, and the reduction of the surgical incision improves the stability of the anterior chamber to a certain extent, it is still unavoidable to avoid the significant changes in the anterior chamber pressure when surgical instruments enter and exit as mentioned above, resulting in postoperative The risk of complications, especially retinal detachment, increases, and the surgical trauma and adverse surgical experience of patients also increase accordingly. So far, there is no medical device that can easily maintain the stability of the anterior chamber pressure during cataract surgery.
基于现有技术的现状，本申请的发明人拟提供一种维持眼科白内障手术压力稳定的辅助装置，尤其涉及一种白内障术中前房压力稳定阀门。Based on the current state of the art, the inventor of the present application intends to provide an auxiliary device for maintaining pressure stability in ophthalmic cataract surgery, especially a valve for stabilizing anterior chamber pressure during cataract surgery.
发明内容Contents of the invention
本发明的目的在于克服及弥补现有技术眼科白内障手术器械的缺陷和不足，提供一种维持眼科白内障手术中前房压力稳定的辅助装置，尤其涉及一种白内障术中前房压力稳定阀门；本压力稳定阀门操作简便，创伤小，可控制白内障手术时前房压力。The purpose of the present invention is to overcome and make up for the defects and deficiencies of the prior art ophthalmic cataract surgical instruments, to provide an auxiliary device for maintaining stable anterior chamber pressure in ophthalmic cataract surgery, and in particular to a valve for stabilizing anterior chamber pressure in cataract surgery; The pressure stabilizing valve is easy to operate and less traumatic, and can control the anterior chamber pressure during cataract surgery.
本发明的阀门主要采用隔膜式止回阀的原理维持白内障手术时前房压力，提供了一种白内障术中前房压力稳定阀门。The valve of the invention mainly adopts the principle of a diaphragm check valve to maintain the anterior chamber pressure during cataract operation, and provides a valve for stabilizing the anterior chamber pressure during cataract operation.
更具体的，本发明的一种白内障术中前房压力稳定阀门，其特征在于，主要由套管型阀体1和关闭件2组成，关闭件2的上端贴附固定于阀体1的上部内壁上。More specifically, a valve for stabilizing anterior chamber pressure in cataract surgery of the present invention is characterized in that it is mainly composed of a sleeve-type valve body 1 and a closing member 2, and the upper end of the closing member 2 is attached and fixed on the upper part of the valve body 1 on the inner wall.
本发明中， 套管型阀体1为阀门主体，通常采用散热性能良好且具有一定硬度的高分子聚合材料制成，该套管型阀体1设为上下两部分，阀体上半部分呈上宽下窄形，其外包绕有套管3，本发明的实施例中，套管3采用塑料材质制备；阀体上半部分其宽口内径为5mm，外径为6.5mm，窄口内径为2.3-2.7mm，外径2.4-2.8mm；套管3上设有凹槽4，该凹槽方便镊子夹持，包绕阀体上半部分的套管3其总长为2-3mm；In the present invention, the sleeve-type valve body 1 is the main body of the valve, which is usually made of a high-molecular polymer material with good heat dissipation performance and certain hardness. It is wide at the top and narrow at the bottom, and is surrounded by a sleeve 3. In the embodiment of the present invention, the sleeve 3 is made of plastic material; the inner diameter of the wide opening of the upper half of the valve body is 5 mm, the outer diameter is 6.5 mm, and the inner diameter of the narrow opening is 5 mm. The outer diameter is 2.3-2.7mm, and the outer diameter is 2.4-2.8mm; the casing 3 is provided with a groove 4, which is convenient for clamping with tweezers, and the total length of the casing 3 surrounding the upper half of the valve body is 2-3mm;
本发明中， 套管型阀体1的下半部分呈直筒型，内径为2.3-2.7mm，外径为2.4-2.8mm，长度2-3mm。阀体下半部分为直筒型。In the present invention, the lower half of the sleeve-type valve body 1 is straight cylindrical, with an inner diameter of 2.3-2.7 mm, an outer diameter of 2.4-2.8 mm, and a length of 2-3 mm. The lower half of the valve body is straight.
本发明中，可根据配套使用的超声乳化针头及灌注套管直径改变阀门套管的直径大小。In the present invention, the diameter of the valve sleeve can be changed according to the diameter of the matching phacoemulsification needle and the perfusion sleeve.
本发明中，关闭件2其上端贴附固定在阀体上半部分内壁上，其下端制成为扁平形的弹簧套，当前房液体倒流时，关闭件的扁平端闭合，具有止回的作用；本发明的实施例中，关闭件2采用弹性材质制备。In the present invention, the upper end of the closing member 2 is attached and fixed on the inner wall of the upper half of the valve body, and the lower end thereof is made into a flat spring sleeve. When the anterior chamber liquid flows back, the flat end of the closing member is closed and has the function of non-return; In the embodiment of the present invention, the closing member 2 is made of elastic material.
使用时，将阀体下端直径较小的部分插入手术主切口中，超乳手柄等手术器械从阀门套管中进入前房，由于正向压力作用，关闭件下端弹簧套扁平端打开，供器械及灌注液进入前房，而当移除手术器械时，由于前房液体的反向压力作用及弹簧套扁平端的回弹作用使得阀门关闭件闭合，阻止前房液体流出，起到维持前房压力稳定的作用。When in use, insert the smaller diameter part of the lower end of the valve body into the main surgical incision, and surgical instruments such as the phacoemulsification handle enter the anterior chamber from the valve casing. And the perfusion fluid enters the anterior chamber, and when the surgical instrument is removed, due to the reverse pressure of the anterior chamber fluid and the rebound effect of the flat end of the spring sleeve, the valve closure is closed, preventing the anterior chamber fluid from flowing out, and maintaining the anterior chamber pressure stabilizing effect.
经实践使用，结果显示，本发明利用隔膜式止回阀原理设计的白内障术中前房压力稳定阀门，可有效维持手术器械进出时的前房压力及形态，减少手术并发症，尤其有利于减少术中对眼后段空间的扰动和术后视网膜脱离风险，对高度近视患者尤其有利，从而可极大地提高白内障手术的安全性及术后疗效，同时对减少患者疼痛、改善患者手术体验，及缩短白内障手术医生的学习曲线均具有重要作用，具有较高的临床实用价值。After practice, the results show that the anterior chamber pressure stabilization valve in cataract surgery designed by the present invention using the diaphragm check valve principle can effectively maintain the anterior chamber pressure and shape when surgical instruments enter and exit, reduce surgical complications, and are especially beneficial to reduce The intraoperative disturbance of the posterior segment of the eye and the risk of postoperative retinal detachment are especially beneficial to patients with high myopia, which can greatly improve the safety and postoperative efficacy of cataract surgery, and at the same time reduce patient pain, improve patient surgical experience, and Shortening the learning curve of cataract surgeons plays an important role and has high clinical practical value.
本白内障术中前房压力稳定阀门具有以下优点：The anterior chamber pressure stabilization valve in cataract surgery has the following advantages:
1）设计简单，使用方便；1) Simple design and easy to use;
2）阀门关闭件采用弹性材料制成，手术器械从中进入前房操作时阻力小，而撤除时关闭迅速，止回作用好，能有效防止前房液体流出；2) The valve closing part is made of elastic material, the surgical instrument enters the anterior chamber through it, and the resistance is small when it is operated, and it closes quickly when it is removed, and the non-return function is good, which can effectively prevent the liquid from flowing out of the anterior chamber;
3）其良好的止回作用可有效维持白内障手术器械进出时的前房稳定性，防止前房变浅或塌陷，避免由于前房压力骤变导致的术中术后并发症，尤其有利于减少眼后段空间的扰动和视网膜脱离风险，对高度近视患者尤其有利，提高了手术安全性；3) Its good anti-return function can effectively maintain the stability of the anterior chamber when cataract surgical instruments enter and exit, prevent the anterior chamber from becoming shallow or collapsed, and avoid intraoperative and postoperative complications caused by sudden changes in anterior chamber pressure, especially to reduce The disturbance of the space in the posterior segment of the eye and the risk of retinal detachment are especially beneficial to patients with high myopia, which improves the safety of surgery;
4）减少了前房压力波动对眼内组织的压力性损伤和对术眼的痛觉刺激；4) Reduce the pressure damage to the intraocular tissue caused by the fluctuation of the anterior chamber pressure and the pain stimulation to the operated eye;
5）良好的前房稳定性，有利于缩短学习曲线，提高初学者手术安全性；5) Good stability of the anterior chamber, which is conducive to shortening the learning curve and improving the safety of surgery for beginners;
6）在一定程度上避免器械反复进出对手术切口的机械损伤，尤其能减少对切口附近角膜后弹力层的影响，提高术后切口闭合能力。6) To a certain extent, it can avoid the mechanical damage to the surgical incision caused by the repeated entry and exit of the instrument, especially reduce the impact on the elastic layer of the cornea near the incision, and improve the postoperative incision closure ability.
附图说明Description of drawings
图1是压力稳定阀门的结构示意图，Figure 1 is a schematic diagram of the structure of the pressure stabilization valve,
其中，1是套管型阀体，分为上下两部分，上半部分上宽下窄，套管3中间设有凹槽4方便镊子夹持，阀体下半部分为直筒型；2是关闭件，其上端贴附固定在阀体上半部分内壁上，下端为扁平形的弹簧套。Among them, 1 is a casing type valve body, which is divided into upper and lower parts. The upper part is wider and narrower than the lower part. There is a groove 4 in the middle of the casing 3 to facilitate clamping by tweezers. The lower part of the valve body is straight; 2 is closed. The upper end is attached and fixed on the inner wall of the upper half of the valve body, and the lower end is a flat spring sleeve.
具体实施方式detailed description
实施例1Example 1
如图1所示，采用散热性能良好且具有一定硬度的高分子聚合材料制成阀门主体。本白内障术中前房压力稳定阀门，主要由套管型阀体1和关闭件2组成，关闭件2的上端贴附固定于阀体1的上部内壁上。As shown in Figure 1, the main body of the valve is made of high molecular polymer material with good heat dissipation performance and certain hardness. The valve for stabilizing anterior chamber pressure in cataract surgery is mainly composed of a sleeve type valve body 1 and a closing member 2, the upper end of the closing member 2 is attached and fixed on the upper inner wall of the valve body 1.
所述套管型阀体1为阀门主体，分为上下两部分，上半部分为上宽下窄，宽口内径为5mm，其外有塑料材质套管3包绕，外径为6.5mm，窄口内径为2.7mm，外径2.8mm，上半部分总长3mm；塑料材质套管中间设有可被镊子夹持的凹槽4，阀体下半部分为直筒型，内径为2.7mm，外径为2.8mm，长度3mm。在施行高度近视并发性白内障患者进行超声乳化白内障手术时，经盐酸奥布卡因表面麻醉，11点位制作2.6mm透明角膜切口，从切口向前房注入粘弹剂，2点位制作1.5mm角膜辅助侧切口，通过主切口利用撕囊镊进行5.5mm连续环形撕囊，充分水分离后将主切口稍扩大至2.8mm，然后将前房压力稳定阀门下半部分插入主切口中固定，再将2.6mm超乳手柄头端伸入阀门进行晶状体核的超声乳化，后更换注吸手柄吸除残留皮质，囊袋内再次注入粘弹剂，选用头端较细长的植入器伸入阀门进行人工晶状体植入（HumanOptic 植入器），吸除残留粘弹剂，拔除阀门，水密切口，术毕；The sleeve type valve body 1 is the main body of the valve, which is divided into upper and lower parts. The upper part is wide at the top and narrow at the bottom. The inner diameter of the wide mouth is 5 mm, and it is surrounded by a plastic material sleeve 3 with an outer diameter of 6.5 mm. The inner diameter of the narrow mouth is 2.7mm, the outer diameter is 2.8mm, and the total length of the upper part is 3mm; there is a groove 4 in the middle of the plastic sleeve that can be held by tweezers. The diameter is 2.8mm and the length is 3mm. When performing phacoemulsification cataract surgery on a patient with high myopia complicated by cataract, after topical anesthesia with oxybucaine hydrochloride, a 2.6mm transparent corneal incision was made at 11 o’clock, viscoelastic was injected into the anterior chamber from the incision, and 1.5mm was made at 2 o’clock Corneal auxiliary lateral incision, through the main incision, use capsulorhexis forceps to perform 5.5mm continuous circular capsulorhexis, after sufficient water separation, the main incision is slightly enlarged to 2.8mm, and then the lower half of the anterior chamber pressure stabilization valve is inserted into the main incision for fixation, and then Insert the head end of the 2.6mm phacoemulsification handle into the valve for phacoemulsification of the lens nucleus, then replace the injection and suction handle to suck out the residual cortex, inject viscoelastic agent into the capsular bag again, and use a slender implanter to extend into the valve Perform intraocular lens implantation (HumanOptic implanter), absorb the residual viscoelastic agent, remove the valve, seal the mouth with water, and the operation is completed;
在手术过程中，器械通过阀门进出前房时前房的深度形态均未发生明显变化，有效维持了术中前房稳定性，因而避免了由于前房压力骤变导致的术中术后并发症，有效降低了该例高度近视并发性白内障患者术后发生视网膜脱离的风险，患者满意度较高，而且操作简便，同时减少了对手术切口的机械损伤，切口闭合性好，有效缩短了手术时间，使得手术安全快捷。During the operation, the depth and shape of the anterior chamber did not change significantly when the instrument passed the valve into and out of the anterior chamber, effectively maintaining the stability of the anterior chamber during the operation, thus avoiding intraoperative and postoperative complications caused by sudden changes in the anterior chamber pressure , effectively reduced the risk of retinal detachment in this patient with high myopia complicated by cataract surgery, the patient satisfaction was high, and the operation was simple, while reducing the mechanical damage to the surgical incision, the incision was well closed, and the operation time was effectively shortened , making the operation safe and fast.
实施例2Example 2
如图1所示，采用散热性能良好且具有一定硬度的高分子聚合材料制成阀门主体。本白内障术中前房压力稳定阀门，主要由套管型阀体1和关闭件2组成，关闭件2的上端贴附固定于阀体1的上部内壁上。As shown in Figure 1, the main body of the valve is made of high molecular polymer material with good heat dissipation performance and certain hardness. The valve for stabilizing anterior chamber pressure in cataract surgery is mainly composed of a sleeve type valve body 1 and a closing member 2, the upper end of the closing member 2 is attached and fixed on the upper inner wall of the valve body 1.
所述套管型阀体1为阀门主体，分为上下两部分，上半部分为上宽下窄，宽口内径为5mm，其外有塑料材质套管包绕，外径为6.5mm，窄口内径为2.3mm，外径2.4mm，上半部分总长2.5mm，塑料材质套管中间有可被镊子夹持的凹槽；阀体下半部分为直筒型，内径为2.3mm，外径为2.4mm，长度2.5mm；在高度近视并发性白内障患者进行飞秒激光辅助白内障手术时，盐酸奥布卡因表面麻醉，利用飞秒激光在11点位制作2.2mm透明角膜主切口隧道，2点为制作1mm透明角膜辅助侧切口隧道，定位后利用飞秒激光截囊，大小5.5mm，再利用飞秒激光将晶状体核均分为6块后转向超声乳化手术台，注入粘弹剂后将主切口稍扩大至2.4mm，前房压力稳定阀门下半部分插入主切口中固定，然后将2.2mm超乳手柄伸入阀门进行晶状体核的分块超声乳化，后更换注吸手柄吸除残留皮质，囊袋内再次注入粘弹剂，选用头端较细长的植入器伸入阀门进行人工晶状体植入（HumanOptic 植入器），吸除残留粘弹剂，拔除阀门，水密切口，术毕；The sleeve type valve body 1 is the main body of the valve, which is divided into upper and lower parts. The upper part is wide at the top and narrow at the bottom. The inner diameter of the wide mouth is 5 mm. The inner diameter of the mouth is 2.3mm, the outer diameter is 2.4mm, and the total length of the upper part is 2.5mm. There is a groove in the middle of the plastic sleeve that can be held by tweezers; 2.4mm, length 2.5mm; when patients with high myopia complicated with cataract undergo femtosecond laser-assisted cataract surgery, oxybucaine hydrochloride is used for topical anesthesia, and femtosecond laser is used to make a 2.2mm transparent corneal main incision tunnel at 11 o'clock, 2 o'clock In order to make a 1mm transparent corneal auxiliary incision tunnel, after positioning, a femtosecond laser was used to cut the capsule, with a size of 5.5mm. Then, the femtosecond laser was used to divide the lens nucleus into 6 pieces, and then turned to the phacoemulsification operating table. The incision is slightly enlarged to 2.4mm, and the lower half of the anterior chamber pressure stabilization valve is inserted into the main incision for fixation, and then the 2.2mm phacoemulsification handle is inserted into the valve for segmental phacoemulsification of the lens nucleus, and then the injection and suction handle is replaced to absorb the residual cortex. Inject the viscoelastic agent into the capsular bag again, select a slender implanter to insert into the valve for intraocular lens implantation (HumanOptic implanter), absorb the residual viscoelastic agent, pull out the valve, seal the mouth with water, and complete the operation ;
在后续超乳手术过程中，器械通过阀门进出前房时均未出现前房变浅或者塌陷的情况，有效维持了术中前房稳定性，从而避免了由于前房压力骤变导致的术中术后并发症，有效降低了该例高度近视并发性白内障患者术后发生视网膜脱离的风险，患者未主诉术中疼痛，满意度较高，而且操作简便，同时也减少了对手术切口的机械损伤，切口闭合性好，有效缩短了手术时间，使得手术安全快捷。During the follow-up phacoemulsification operation, the anterior chamber did not become shallow or collapsed when the instrument passed the valve into and out of the anterior chamber, which effectively maintained the stability of the anterior chamber during the operation, thereby avoiding intraoperative complications caused by sudden changes in the anterior chamber pressure. Postoperative complications effectively reduced the risk of retinal detachment in this patient with high myopia complicated by cataract. The patient did not complain of intraoperative pain, and the satisfaction was high. The operation was simple and the mechanical damage to the surgical incision was also reduced. , The incision is well closed, which effectively shortens the operation time and makes the operation safe and fast.
使用结果显示，本发明的阀门可有效维持白内障手术器械进出时前房稳定性，避免前房压力骤然改变，减少手术并发症尤其是视网膜脱离的风险，减轻灌注压差造成的眼内组织压力性损伤和疼痛刺激，更好地提高手术安全性、疗效及满意度。The results of use show that the valve of the present invention can effectively maintain the stability of the anterior chamber when cataract surgical instruments enter and exit, avoid sudden changes in anterior chamber pressure, reduce the risk of surgical complications, especially retinal detachment, and reduce the pressure on intraocular tissues caused by perfusion pressure difference. Injury and pain stimulation to better improve surgical safety, efficacy and satisfaction.
本发明还具有多种变换及改型，并不局限于上述实施方式的具体结构。本发明保护范围是针对本领域普通技术人员来说显而易见的变换或替代以及改型等，如简单改变阀门套管材质、大小，关闭件材质等。The present invention also has various transformations and modifications, and is not limited to the specific structures of the above-mentioned embodiments. The protection scope of the present invention is aimed at the transformation or replacement and modification that are obvious to those skilled in the art, such as simply changing the material and size of the valve casing, the material of the closing member, and the like.
Claims (8)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023065555A1 (en) * | 2021-10-22 | 2023-04-27 | 温州医科大学附属眼视光医院 | Pressure stabilizing system for accurately preparing ultrathin corneal endothelial graft |
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