CN210228403U - 一种舌形五爪式听小骨假体 - Google Patents

一种舌形五爪式听小骨假体 Download PDF

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CN210228403U
CN210228403U CN201920341034.5U CN201920341034U CN210228403U CN 210228403 U CN210228403 U CN 210228403U CN 201920341034 U CN201920341034 U CN 201920341034U CN 210228403 U CN210228403 U CN 210228403U
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connecting rod
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Jie Wang
王杰
Takuji Koike
小池卓二
Fei Zhao
赵非
Yinan Hui
惠一楠
Dewei Wang
王德伟
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Anhui aofu intelligent minimally invasive medical instrument Group Co.,Ltd.
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Anhui Aofu Intelligent Minimally Invasive Medical Devices Co ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/18—Internal ear or nose parts, e.g. ear-drums
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/18—Internal ear or nose parts, e.g. ear-drums
    • A61F2002/183—Ear parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0091—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0004—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable
    • A61F2250/0006—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable for adjusting angular orientation

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  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Pulmonology (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

本实用新型公开一种舌形五爪式听小骨假体，包括顶盘、连杆与镫骨夹，所述顶盘侧边设有呈S形的支撑舌体，支撑舌体能够与锤骨形成配合；顶盘与连杆之间通过球窝关节相连；所述镫骨夹为五爪结构；通过设置支撑舌体与锤骨形成配合，使听小骨假体能够与锤骨之间形成良好地支撑，增强稳定性；通过球窝关节将顶盘与连杆进行连接，可以灵活方便地调整顶盘与连杆之间的角度，适于不同病人的需求；将镫骨夹设置成五爪结构，使镫骨夹在与镫骨连接时松紧适宜，既不会因为过紧损伤镫骨，也不会由于过松而脱落。

Description

一种舌形五爪式听小骨假体
技术领域
本实用新型涉及医疗器械技术领域，具体是一种舌形五爪式听小骨假体。
背景技术
由于疾病、外伤或先天畸形，中耳听小骨（由三个小骨组成，别称听骨链，从外向内依次为：锤骨、砧骨、镫骨，镫骨由镫骨弓与镫骨底板组成，后者与内耳外淋巴液接触，是中耳将振动传递至内耳的最后结构）通常受到损伤。最多见的是砧骨受损。如果砧骨损伤导致鼓膜和镫骨头之间的不连续或固定，那么从鼓膜传来的振动就无法有效传递至镫骨头，从而导致传导性听力损失。当受损的砧骨被听小骨假体置换后，从鼓膜传来的振动将被听小骨假体传递至镫骨，进而部分或全部补偿砧骨受损导致的传导性听力损失。此外，生理状态的听骨链有锤砧关节、砧镫关节、镫骨环韧带、鼓膜与锤骨间软链接以及锤骨及砧骨的韧带，使得鼓膜听骨链系统可以缓冲中耳腔压力变化。该种替代砧骨的听小骨假体又称作部分人工听骨或部分听小骨假体。
目前，听小骨假体一般由顶盘、连杆与镫骨夹构成，从而组成听骨链。现有的听小骨假体在使用时发现，与锤骨之间的稳定性较差，顶盘与连杆相固定导致活动范围受限，而且硬连接的方式无法承受冲击；另外，镫骨夹一般为四爪、七爪或八爪，与镫骨相连时存在过松或过紧的问题。
实用新型内容
本实用新型的目的在于提供一种舌形五爪式听小骨假体，该听小骨假体能够与锤骨之间形成良好地接触，增强人工听骨的稳定性、减小人工听骨对接触鼓膜部分造成应力过大进而损伤鼓膜，且活动范围大便于调整使用角度，另外与镫骨相连时松紧适宜。
本实用新型解决其技术问题所采用的技术方案是：
一种舌形五爪式听小骨假体，包括顶盘、连杆与镫骨夹，顶盘设有筋条；所述顶盘侧边设有呈S形的支撑舌体，支撑舌体能够与锤骨形成配合；顶盘与连杆之间通过球窝关节相连；所述镫骨夹为五爪结构。
进一步的，所述球窝关节内设有缓冲弹簧。
进一步的，所述顶盘呈圆形或椭圆形。
进一步的，所述球窝关节位于顶盘中心或偏心位置。
进一步的，所述顶盘的筋条呈S形。
本实用新型的有益效果是：
一、通过设置支撑舌体与锤骨形成配合，使听小骨假体能够与锤骨之间形成良好地支撑，增强稳定性；
二、通过球窝关节将顶盘与连杆进行连接，可以灵活方便地调整顶盘与连杆之间的角度，适于不同病人的需求；
三、将顶盘上的筋条设置成S形，能够扩大手术操作时的视野，减少出现的盲区，减少听小骨假体质量；
四、球窝关节内设置缓冲弹簧能够缓冲部分中耳气压变化，减小顶盘对鼓膜的压力，进而减小顶盘对鼓膜的损伤，减小植入体脱出率；
五、将镫骨夹设置成五爪结构，使镫骨夹在与镫骨连接时松紧适宜，既不会因为过紧损伤镫骨，也不会由于过松而脱落。
附图说明
下面结合附图和实施例对本实用新型进一步说明：
图1是本实用新型的结构示意图；
图2是本实用新型的仰视立体图；
图3是本实用新型的侧视图。
具体实施方式
结合图1～3所示，本实用新型提供一种舌形五爪式听小骨假体，包括顶盘1、连杆2与镫骨夹3，顶盘1设有筋条7，筋条7呈S形；所述顶盘1侧边设有呈S形的支撑舌体4，支撑舌体4能够与锤骨形成配合；结合图3所示，顶盘1与连杆2之间通过球窝关节5相连，作为优选的，球窝关节5内设有缓冲弹簧6；所述镫骨夹3为五爪结构，五爪具体为后方两爪、前方一爪、两侧方各一爪，后方的两爪使镫骨夹与镫骨头后方的镫骨肌腱相吻合；双侧的两爪稍向内倾斜，易于嵌入镫骨头下方的镫骨弓之间的空隙中；前方的一爪，使得人工听骨与镫骨头不至于向后方滑动，起到固定人工听骨位置作用；此外，该设计通过调整各爪结构的弹性，便于使用过程中取出重新安放而不损伤镫骨以及镫骨环韧带。顶盘1呈圆形或椭圆形。球窝关节5位于顶盘1中心，也可以设置在顶盘1偏心位置。
以上所述，仅是本实用新型的较佳实施例而已，并非对本实用新型作任何形式上的限制；任何熟悉本领域的技术人员，在不脱离本实用新型技术方案范围情况下，都可利用上述揭示的方法和技术内容对本实用新型技术方案做出许多可能的变动和修饰，或修改为等同变化的等效实施例。因此，凡是未脱离本实用新型技术方案的内容，依据本实用新型的技术实质对以上实施例所做的任何简单修改、等同替换、等效变化及修饰，均仍属于本实用新型技术方案保护的范围内。

Claims (5)

1.一种舌形五爪式听小骨假体，包括顶盘、连杆与镫骨夹，顶盘设有筋条，其特征在于，所述顶盘侧边设有呈S形的支撑舌体，支撑舌体能够与锤骨形成配合；顶盘与连杆之间通过球窝关节相连；所述镫骨夹为五爪结构。
2.根据权利要求1所述的一种舌形五爪式听小骨假体，其特征在于，所述球窝关节内设有缓冲弹簧。
3.根据权利要求1或2所述的一种舌形五爪式听小骨假体，其特征在于，所述顶盘呈圆形或椭圆形。
4.根据权利要求3所述的一种舌形五爪式听小骨假体，其特征在于，所述球窝关节位于顶盘中心或偏心位置。
5.根据权利要求1所述的一种舌形五爪式听小骨假体，其特征在于，所述顶盘的筋条呈S形。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022207456A1 (de) * 2021-03-30 2022-10-06 Med-El Elektromedizinische Geräte GmbH Gehörknöchelchenprothese

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022207456A1 (de) * 2021-03-30 2022-10-06 Med-El Elektromedizinische Geräte GmbH Gehörknöchelchenprothese
DE102021107955A1 (de) 2021-03-30 2022-10-06 Med-El Elektromedizinische Geräte GmbH Gehörknöchelchenprothese

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Address after: 233000, No. 551, Gaoxin Road, Bengbu City, Anhui Province

Patentee after: Anhui aofu intelligent minimally invasive medical instrument Group Co.,Ltd.

Address before: 233000, No. 551, Gaoxin Road, high tech Zone, Bengbu City, Anhui Province

Patentee before: ANHUI AOFU INTELLIGENT MINIMALLY INVASIVE MEDICAL DEVICES Co.,Ltd.

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