CN Patent

CN87210467U — 蝶形宫内节育器

Assigned to DALIAN INST OF FAMILY PLANNING · Expires 1988-04-06 · 38y expired

What this patent protects

本实用新型提供的是一种新型结构宫内节育器——蝶形宫内节育器。本实用新型是由不锈钢丝扭制成支架、硅胶管套封而成的，包括横臂、侧臂、颈及尾四部分。其形如蝴蝶，置入子宫内可占据宫内腔较大表面积以减少带器妊娠率；其两臂，特别是侧臂具有弹性支撑作用，使其既可克服了随子宫机能变化时移位脱落，又不会刺激子宫壁而造成损伤。

USPTO Abstract

本实用新型提供的是一种新型结构宫内节育器——蝶形宫内节育器。本实用新型是由不锈钢丝扭制成支架、硅胶管套封而成的，包括横臂、侧臂、颈及尾四部分。其形如蝴蝶，置入子宫内可占据宫内腔较大表面积以减少带器妊娠率；其两臂，特别是侧臂具有弹性支撑作用，使其既可克服了随子宫机能变化时移位脱落，又不会刺激子宫壁而造成损伤。

Drugs covered by this patent

Patent Metadata

Patent number
CN87210467U
Jurisdiction
CN
Classification
—
Expires
1988-04-06
Drug substance claim
No
Drug product claim
No
Assignee
DALIAN INST OF FAMILY PLANNING
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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