CA1175314A - Surgical apparatus for precisely cutting out the cornea - Google Patents

Surgical apparatus for precisely cutting out the cornea

Info

Publication number: CA1175314A
Authority: CA; Canada
Prior art keywords: support; ring; blade; blade carrier; trephine
Prior art date: 1980-09-03
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

CA000382117A

Other languages

English (en)

French (fr)

Inventor

Khalil Hanna

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

SEVIFRA SA

Original Assignee

SEVIFRA SA

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1980-09-03

Filing date

1981-07-21

Publication date

1984-10-02

1980-09-03 Priority claimed from FR8019014A external-priority patent/FR2489141A1/fr

1981-07-21 Application filed by SEVIFRA SA filed Critical SEVIFRA SA

1984-10-02 Application granted granted Critical

1984-10-02 Publication of CA1175314A publication Critical patent/CA1175314A/en

Status Expired legal-status Critical Current

Links

238000005520 cutting process Methods 0.000 title claims abstract description 34
210000004087 cornea Anatomy 0.000 title claims abstract description 18
230000033001 locomotion Effects 0.000 claims description 62
210000000078 claw Anatomy 0.000 claims description 15
230000000875 corresponding effect Effects 0.000 claims description 10
230000000670 limiting effect Effects 0.000 claims description 8
239000000969 carrier Substances 0.000 claims description 5
238000005096 rolling process Methods 0.000 claims description 5
239000012530 fluid Substances 0.000 claims description 4
229920000136 polysorbate Polymers 0.000 claims 3
230000003100 immobilizing effect Effects 0.000 claims 1
210000000695 crystalline len Anatomy 0.000 description 37
210000002832 shoulder Anatomy 0.000 description 21
230000000295 complement effect Effects 0.000 description 5
230000000694 effects Effects 0.000 description 5
230000002093 peripheral effect Effects 0.000 description 5
230000000712 assembly Effects 0.000 description 4
238000000429 assembly Methods 0.000 description 4
238000011144 upstream manufacturing Methods 0.000 description 4
210000004369 blood Anatomy 0.000 description 2
239000008280 blood Substances 0.000 description 2
238000003973 irrigation Methods 0.000 description 2
239000000463 material Substances 0.000 description 2
230000036961 partial effect Effects 0.000 description 2
230000000149 penetrating effect Effects 0.000 description 2
230000000284 resting effect Effects 0.000 description 2
210000002966 serum Anatomy 0.000 description 2
238000006066 Comins reaction Methods 0.000 description 1
201000002287 Keratoconus Diseases 0.000 description 1
101100345589 Mus musculus Mical1 gene Proteins 0.000 description 1
102000003800 Selectins Human genes 0.000 description 1
108090000184 Selectins Proteins 0.000 description 1
206010043268 Tension Diseases 0.000 description 1
239000000853 adhesive Substances 0.000 description 1
230000001070 adhesive effect Effects 0.000 description 1
230000000903 blocking effect Effects 0.000 description 1
230000015556 catabolic process Effects 0.000 description 1
230000002844 continuous effect Effects 0.000 description 1
230000001276 controlling effect Effects 0.000 description 1
208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
239000000428 dust Substances 0.000 description 1
230000008030 elimination Effects 0.000 description 1
238000003379 elimination reaction Methods 0.000 description 1
239000000284 extract Substances 0.000 description 1
210000000887 face Anatomy 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
238000000034 method Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
238000012986 modification Methods 0.000 description 1
239000004810 polytetrafluoroethylene Substances 0.000 description 1
229920001343 polytetrafluoroethylene Polymers 0.000 description 1
AAEVYOVXGOFMJO-UHFFFAOYSA-N prometryn Chemical compound CSC1=NC(NC(C)C)=NC(NC(C)C)=N1 AAEVYOVXGOFMJO-UHFFFAOYSA-N 0.000 description 1
230000002829 reductive effect Effects 0.000 description 1
230000000717 retained effect Effects 0.000 description 1
238000010008 shearing Methods 0.000 description 1
238000006467 substitution reaction Methods 0.000 description 1
238000001356 surgical procedure Methods 0.000 description 1

Landscapes

Surgical Instruments (AREA)

CA000382117A 1980-09-03 1981-07-21 Surgical apparatus for precisely cutting out the cornea Expired CA1175314A (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
FR8019014		1980-09-03
FR8019014A FR2489141A1 (fr)	1980-09-03	1980-09-03	Appareil chirurgical pour la decoupe precise de la cornee
EP81400745.6		1981-05-11
EP81400745A EP0047190B1 (de)	1980-09-03	1981-05-11	Chirurgisches Gerät zum genauen Herausschneiden der Hornhaut des Auges

Publications (1)

Publication Number	Publication Date
CA1175314A true CA1175314A (en)	1984-10-02

Family

ID=26082916

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000382117A Expired CA1175314A (en)	1980-09-03	1981-07-21	Surgical apparatus for precisely cutting out the cornea

Country Status (2)

Country	Link
AT (1)	ATE12345T1 (de)
CA (1)	CA1175314A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN110477963A (zh) *	2019-08-09	2019-11-22	上海长征医院	穿刺活检环锯

1981
- 1981-05-11 AT AT81400745T patent/ATE12345T1/de not_active IP Right Cessation
- 1981-07-21 CA CA000382117A patent/CA1175314A/en not_active Expired

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN110477963A (zh) *	2019-08-09	2019-11-22	上海长征医院	穿刺活检环锯

Also Published As

Publication number	Publication date
ATE12345T1 (de)	1985-04-15

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Legal Events

Date	Code	Title	Description
2001-10-02	MKEX	Expiry