
Sense™ Single and Double Lumen
Optimise oocyte retrieval performance and improve patient comfort
Description Oocyte retrieval needle
Purpose Intended for flushing and/or aspiration of oocytes from ovarian follicles.
Application For use with suitable vacuum pump, syringe for flushing (Sense Double Lumen), collection vial and vacuum pump tubing.
Storage Store in room temperature.
- Outer diameter (mm): 1.4/0.9
- Outer diameter (gauge): 17/20
- Inner diameter (mm): 1.2/0.6
- Needle length (mm): 300
- Aspiration tubing (mm): 600
- Outer diameter (mm): 1.4/0.9
- Outer diameter (gauge): 17/20
- Inner diameter (mm): 1.2/0.6
- Needle length (mm): 300
- Aspiration tubing (mm): 900
- Outer diameter (mm): 1.4/0.9
- Outer diameter (gauge): 17/20
- Inner diameter (mm): 1.2/0.6
- Needle length (mm): 350
- Aspiration tubing (mm): 600
- Outer diameter (mm): 1.4/0.9
- Outer diameter (gauge): 17/20
- Inner diameter (mm): 1.2/0.6
- Needle length (mm): 350
- Aspiration tubing (mm): 900

Successful oocyte retrieval for the patient and you
A delicate procedure that requires gentle handling
The oocyte is the largest cell in the human body and is extremely vulnerable. Retrieving an oocyte exposes it to considerable stress, including transfer from the follicle, passage through the needle and tubing, and exposure to the laboratory environment.
It is also a critical procedure involving a lot of anxiety for the patient.
One way to support a successful outcome is to use a needle that enables a fast and precise procedure. This will minimise stress and ensure that the maximum number
of intact oocytes can be retrieved.
Using a needle that causes minimal tissue damage will also lessen complications and patient discomfort.
Unique design
Sense Single Lumen
The Sense needle has a 17G body and a 20G needle tip. This unique design provides ideal conditions for optimised control, aspiration time and improved patient comfort.
The reduced tip gives you the advantages of a small sized needle; less bleeding and less pain1,2,3. As only the tip is reduced, the rigidity and flow are maintained, ensuring accurate guidance while helping to maximise the number of oocytes collected.
With Sense you keep the benefits working with a conventional needle and gain the advantages of a thin needle. It makes sense.
Sense Double Lumen
The Sense Double Lumen needle has a 16G body and a 19G needle tip. The unique design makes it an ideal needle to work with and has the control and precision you need with optimal aspiration time. With Sense you keep the benefits of working with a conventional needle and gain the advantages of a thin needle.
Sense Double Lumen is based on the tried and trusted Sense Single Lumen needle, which features a reduced tip for less bleeding and pain, and a larger body for optimal precision and retrieval time. The new Sense Double Lumen gives you the same reduced tip and larger body, while also adding the possibility of easy flushing of the follicles during pick-up.
Significantly less bleeding and pain according to clinical study
To prove the benefits of the unique design of Sense, a prospective, randomised, multicenter study was carried out1. Oocyte retrieval using Sense resulted in significantly less vaginal bleeding compared to a conventional needle and a significantly reduced overall pain experience – 19% lower compared to a conventional needle. Most importantly, there were no differences in the number of oocytes with intact zona pellucida after aspiration, regardless of needle size.
1. Wikland M et al. Hum Reprod. 2010;25 (Suppl. 1), O-226
Read more

Designed to deliver
Our needles are designed to optimise control and retrieval time and improve patient comfort.

Innovative echo marking for perfect control
The echomarking is created through innovative laser etching giving you the high visibility you need during oocyte retrieval.
Ultra sharp design for low penetration resistance and exact precision
The needle tip is designed to meet your needs by providing extraordinary sharpness, exact precision and the utmost safety. The bevel grinding ensures low resistance penetration and distinctive backpoint grinding prevents deviation.


Colour coded peel-off labels
All needle labels are colour coded to simplify identification of needle type. The peel-off labels facilitate patient journal handling.

Double sterile pack to meet surgical standards
Each needle is individually packaged in a double sterile barrier to avoid contamination in the operating theatre.

Endotoxin free
To detect toxic materials, Vitrolife has developed a very sensitive 1-cell mouse embryo assay (MEA) that follows the development of single-cell mouse embryos to hatching blastocysts. This assay is far more sensitive than the widely used 2-cell MEA.
How to create optimal conditions during oocyte retrieval
Dr. Westlander, MD, PhD, is the Medical Director at Fertilitetscentrum, a private clinic in Sweden performing around 1500 IVF cycles annually. Watch a short movie where he share his experiences in how to create optimal conditions during the oocyte retrieval procedure, both for the patient and the clinician.
Watch movie
Quality all the way
To safeguard robust product performance, the Vitrolife quality control system covers both the manufacturing process and the needles. We help you to maximise your success rate by ensuring consistent high quality through;
- Highly controlled manufacturing
- Inspection of all needles
- Guaranteed sterility
- Lot-to-lot consistency
- MEA-tested needles

I use Sense for all patients and recognize its value for both my patients and myself. The clear view of the needle tip enables my control of the procedure at all times, whilst the thinner tip hasn’t altered the timing for each egg collection.
I've also seen much less bleeding and pain in my patients when using Sense, which is clearly positive for all involved!
- Dr. Andrew Kan, MD., IVF Australia
(Using the Sense Single Lumen needle)
How to use this product

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We provide what you need to secure improved results throughout the IVF journey.