Surgical instruments
Guthrie Fixation Hook
Web referenceTGI-C-5C550A8EQuote this to us. It identifies this page, not a factory part number.
Sizes TGI publishes5" · 2.0mm Printed on TGI's own catalogue photograph of this article.
Also printed on the photographfully curved · 2 sharp prongs Printed on TGI's own catalogue photograph of this article.
Fine double-pronged sharp hook used to take hold of conjunctiva or sclera and steady the globe, or to lift a tissue edge in fine work.
A fixation hook is a one-piece ophthalmic hand instrument from the eye-muscle (strabismus) family, and in most catalogs the same article is also sold as a "muscle hook." A thin round or flat shaft runs to a small hook bent close to a loop at the working end; the tip is blunt and bulbous rather than pointed, so it can pick up and hold a muscle or a fold of conjunctiva without cutting it. The shaft is graded by tip depth - the distance from the bend to the tip - which is quoted as its own figure alongside overall length, because that depth is what changes from one named pattern to the next. Named patterns include Jameson, von Graefe, Wiener, Green and Stevens, and they differ from each other mainly in tip depth and bend angle rather than in the basic one-piece construction.
Minimum order300 instrumentsThe minimum for surgical instruments. Mixed orders are quoted against your list.
Lead timeInstruments ~2-3 weeks · full sets ~4-6 weeks after advance.
Quality control
The inspection step is set by the line you order.
- Economy line
- sample: visual + dimensional
- Clinical line
- sample + boil test
- Premium line
- tighter sample + hardness test
- Executive line
- 100% inspection + laser mark
Finish A color is a second choice, made on top of the line. Colored finishes on request, on any instrument, in addition to the steel line. Evidenced: black · gold · rose gold · blue · rainbow (anodised titanium).
How it is built
- One piece, no joint, no lock, no moving part
- Shaft thin, round or flat, ending in a small hook bent close to a loop
- Tip blunt and bulbous, not pointed
- Graded by tip depth (bend to tip), quoted separately from overall length
- Handle flat or round, often knurled for grip
- Overall length commonly runs 125-140 mm (about 5 to 5 1/2 in)
- Same article family as the 'muscle hook'; the two names are used for identical goods in the trade
PatternsJameson · von Graefe · Wiener · Green · Stevens
The standard sizes this kind of instrument is made in
136 mm overall, 2 mm bulbous tip, 10 mm tip-to-curve (Jameson) · 14 cm (5 1/2 in) overall, 8 mm tip depth, small (von Graefe) · 14 cm (5 1/2 in) overall, 10 mm tip depth, medium (von Graefe) · 14 cm (5 1/2 in) overall, 11 mm tip depth, large (von Graefe) · 12.7 cm (5 in) overall (Wiener)
These are the sizes the pattern is manufactured in across the trade. They are not a stock list. Tell us the size you need and we will quote against it.
This describes the article. The steel, the finish and the inspection step are set by the line you order.
Material and quality
| Line | Steel | Origin | Finish | Inspection |
|---|---|---|---|---|
| Economy line | AISI 410 | Pakistani or Taiwanese | satin, passivated | sample: visual + dimensional |
| Clinical line | AISI 420 | Pakistani or German | satin, passivated | sample + boil test |
| Premium line | AISI 420-440C | German or Japanese | fine polish, passivated | tighter sample + hardness test |
| Executive line | AISI 440C | German or Japanese | mirror polish, passivated | 100% inspection + laser mark |
This is the steel each line is made from as standard. A different origin can be supplied on request (a lower grade in Japanese steel, for example), agreed on your order.
Premium is the line where the choice is yours: 420 or 440C, agreed on your order. Economy is always 410 and Executive is always 440C. Those three are the instrument steels. Hollowware and sterilization containers are made in AISI 202 on a Clinical order and AISI 304 on a Premium or Executive one, and they are not offered in the Economy line at all, which is the section above.
True of every order
Instruments are marked to the buyer's requirement (TGI, unmarked, or the buyer's own brand), agreed on the order.
Customized packaging is part of what TGI supplies. Your own printed boxes, your labels, your brand on the pack, or plain export packing, whichever your market needs. The packing for your order is agreed with you and confirmed on the order.
Manufactured under the quality management system covered by TGI's ISO 9001:2015 and ISO 13485:2016 certificates. Certificate numbers and the issuer's registry are on the certification page. Open the certificates
Every batch of steel is ordered to a specified grade and arrives with the mill's own certificate, which identifies the mill and states the grade. TGI checks the material at the factory against its own requirement before it goes into production. That check is TGI's own inspection, not an independent laboratory test.
TGI manufactures in its own factory in Sialkot and also supplies articles made by contracted partner workshops, to TGI's specification. Which applies to a given article is confirmed on your order.
One-year guarantee on Premium and Executive tier instruments, hollowware and sterilization containers: any technical manufacturing defect, including material faults and rust, is replaced free of charge. Damage from handling or accidents is not covered. The year runs from the day the goods leave Sialkot.
If something is wrong with a delivery (a manufacturing defect, or a short or wrong article), tell us on WhatsApp within 7 days of delivery, with a video and photographs of what arrived. Replacement instruments are sent free of charge and dispatched within 24 hours of us seeing them; you pay the shipping, and they reach you as a normal order does.
Damage that happened after the goods left Sialkot is a claim against your carrier. The video of your parcel at the shipping office is sent to you before shipment and is the evidence that claim needs.
