Crochet Pattern for a Human Heart

Crochet Pattern for a Human Heart

It was my sister-in-law birthday sooner this month and of course a handmade gift was a must. What to crochet for a fan of anything anatomy, medical, zombie and creepy? A human heart of course! I searched on Pinterest and Ravelry for a pattern as you do when you’re searching for inspiration and I found a pattern, as early as round 3 I frogged everything because the pattern didn’t make sense and was messy. Back to Pinterest for inspiration I decided to just let the picture of crochet hearts and real hearts inspired me and winged it. So here is the heart that I came up with. I shared these picture a few weeks back and the response was amazing I got the chance to receive many compliments but most importantly a lot of inspiring stories from loved ones of medical students and people in recovery from heart disease. I couldn’t keep this pattern to myself after that so here it is!

***You can purchase an INEXPENSIVE AD-FREE PDF of this pattern on Ravelry or Etsy HERE 

Materials

  • Worsted Weight yarn in :
    • Burgundy for the heart muscle
    • Blue for the superior vena cava and the pulmonary arteries
    • Red for the aorta
    • Off white or ivory for the right atrium
  • Crochet hooks ( I love the Clover Amour Crochet Hook Set )
    • 5mm (H) for the heart muscle
    • 3.5 mm (E)  for anything else
  • Tapestry needle
  • Stuffing of your choice
  • Scissors

Abbreviations:

ch = chain

sl st = Slip Stitch

Sc = Single Crochet

Dec = Decrease

Inc = Increase

Notes

  • For the heart muscle I used a double strand to make the heart more realistic since the muscle is stiffer and thickerthan the arteries.
  • The arteries are made with a single strand of yarn.
  • The assembly for each individual piece will be indicated in the pattern, the whole heart assembly will be in a separatee section at the end.
  • The heart measures approximately 20 cm (almost 8 inches) of height and 15 cm large (6 inches).

Pattern

Heart Muscle

Working in continuous rounds

Using 5 mm hook (H) and burgundy yarn. (Double strands)

Round 1:  6 sc in Magic Ring (6 sts).

R2: *Inc*, rep 6 times.  (12 sts).

R3: *Sc 1, Inc*, rep 6 times.  (18 sts).

R4: *Sc 2, Inc*, rep 6 times. (24 sts).

R5: *Sc 3, Inc*, rep 6 times. (30 sts).

R6: *Sc 4, Inc*, rep 6 times.  (36 sts).

R7: *Sc 11, Inc*, rep 3 times.  (39 sts).

R8: *Sc 12, Inc*, rep 3 times. (42 sts).

R9: *Sc 13, Inc*, rep 3 times. (45 sts).

R10-13 : Sc all around (45 sts).

R14 : *Sc 7, dec*, rep 5 times (40 sts.)

R15 : *Sc 6, dec*, rep 5 times (35 sts.)

R16 : *Sc 5, dec*, rep 5 times (30 sts.)

R17-18 : Sc all sround (30 sts)

Start stuffing your heart

R19 : *Sc 3, dec*, rep 6 times (24 sts.)

R20 : *Sc 2, dec*, rep 6 times (18 sts.)

R21 : *Sc 1, dec*, rep 6 times (12 sts.)

R22 : Finish stuffing your heart and decrease 6 times (6 sts.)

Leave long tail and sew shut the heart

 

Right atrium

Off-white triangle covering part of the superior vena cava

Using 3,5 mm (E) hook and off-white yarn

Round 1:  Ch 27, turn and sc across (26 sts).

R2: Ch1, turn, sc across (26 sts)

R3: Ch1, turn, decrease twice, sc 18, decrease twice   (22 sts).

R4: Ch1, turn, decrease , sc 18, decrease  (20 sts).

R5: Ch1, turn, decrease , sc 16, decrease  (18 sts).

R6: Ch1, turn, decrease , sc 14, decrease  (16 sts).

R7: Ch1, turn, decrease , sc 12, decrease  (14 sts).

R8: Ch1, turn, decrease , sc 10, decrease  (12 sts).

R9: Ch1, turn, decrease , sc 8, decrease  (10 sts

).

R10: Ch1, turn, decrease , sc 6, decrease  (8 sts).

R11: Ch1, turn, decrease , sc 4, decrease  (6 sts).

R12: Ch1, turn, decrease , sc 2, decrease  (4 sts).

R13: Ch1, turn, decrease twice  (2 sts).

R14: Ch1, turn, decrease (1 sts).

Fasten off and leave long tail to sew.

 

Aorta

For the aorta we will make a long tube and three smaller ones

Using 3,5 mm (E) hook and red yarn

Long tube

Row 1: Ch 15 leaving a tail to sew and slip stitch to first chain to join

R2-30 : sc all around

Fasten off leaving long tail.

Smaller tube 1

Row 1: Ch

10 and slip stitch to first chain to join

R2-7 : sc all around

Fasten off leaving long tail.

Smaller tube 2 (make 2)

Row 1: Ch 7 and slip stitch to first chain to join

R2-5 : sc all around

Fasten off leaving long tail

You can now sew the three smaller tubes in the middle of the larger one making sure the smaller tube 1 is between the two smaller tubes 2 with one or two stitches between each tube. Please refer to the picture if you find these indication vague (I don’t blame you). When your three smaller tubes are attach you can sew close one of the end of the bigger tube and start stuffing. You don’t want the aorta to be hard it needs to be flexible enough to curve it in the final assembly. Then you can sew the other end making sure to keep a tail long enough to attach the aorta to the heart later on.

 

Superior vena cava

Using 3,5 mm (E) hook and blue yarn

Row 1: Ch 12 and slip stitch to first chain to join, leaving a long tail for sewing.

R2-10 : sc all around (1

2 sts)

R11: Inc all around (24 sts)

R12: *Sc 1, Inc*  repeat 12 times (36 sts).

R13-15: Sc all around (36 sts)

R16 : *Sc 1, dec*, rep 12 times (24sts.)

R17 : * dec*, rep 12 times (12sts.)

R18-23 : sc all around (12 sts)

Fasten off leaving a medium tail to sew this end of the tube close.

You can stuff the tube making sure the bulb in the middle is fully in shape but not too firm. Keep a part of the tail to sew on the heart later.

 

Pulmonary arteries

For the pulmonary arteries we will make a long tube and two smaller ones

Using 3,5 mm (E) hook and blue yarn

Long tube

Row 1: Ch 15 and slip stitch to first chain to join

R2-22 : sc all around

Fasten off leaving long tail.

Smaller tube (make 2)

Row 1: Ch 8 and slip stitch to

first chain to join

R2-7 : sc all around

Fasten off leaving long tail.

You can now sew one end and stuff the big tube then sew the other end whilst leaving the tail long enough to sew on to the heart later. Do not stuff too much, the tube needs to be flexible enough to bend. Sew the two smaller tubes at one end of the long tube to make some kind of a Y.

 

 

Assembly and finishing touches

I like to pin everything before sewing it on to make sure i love the way it’s look.

Gather all your pieces together and place the heart muscle the smallest extremity down. We will attach the superior vena cava (svc) first. Place the svc on the heart muscle so that the top of the heart and the svc are pretty align. The svc is made of a tube with a bulb between two straight parts, one longer than the other. You want the shorter straight part on top. You can sew the svc on the heart muscle, the next piece will help to solidify it.

The right atrium (white triangle) will go on top of the svc the pointy part of th

e atrium will face down and be fixed to the heart around an inch or so from the bottom, so pretty close to the bottom of the heart. You can now sew the atrium on top of the svc (please take a look at the picture for reference).

We will now attach the pulmonary arteries. This part will be on the top of the heart perpendicular (ish) to the svc. Place your heart so that the pieces we just attached are on your left and now look at your heart from the top. Place the pulmonary arteries horizontally with the flat extremity on the left almost like if it came out of behind the svc and the branched one on the right, you can bend it a little so that it’s not flat but a little bit curved and then attach it to the top of the heart. Once again please referred to the picture.

Almost done! It’s aorta time! You want the aorta to cross diagonally the pulmonary arteries on top of the heart muscle. One of the end will be attach to the pulmonary arteries but the other will be sew on the heart muscle about an inch and a half from the pulmonary arteries. Don’t forget to bend it a little so that it curved a little bit and really secure it on the pulmonary arteries.

The last thing is the veins and arteries embroider on the heart, I pretty much embroider them freely as I went, but I wanted some guidelines. You will have 3 veins, 2 bright red and one blue that will be in the middle. The first red vein will look like it came out of the middle of the side of the right atrium and made is way to the center of the heart, your blue one will come down of under the pulmonary arteries and will go down and branched out a lot until it is about an inch and half from the bottom of the heart. The last one is a red one and also came from under the pulmonary arteries but expand more to

the right and go down to about the middle of the heart, you can look at the pictures for guidelines but even if I made a dozen of

heart they will never looks exactly the same.

I hope this crochet heart

will fill real hearts with love as I know some of you will make one for someone going through recovery or a new career in medicine or simply like my sister-in-law who just loves this kind of stuff!

If you’re looking for something quick, easy and magical to make please go and check out my unicorn basket right here.

Do you like this kind of project?

Any suggestion of any other anatomy related project you want me to tackle next?

As always, if you create something from my pattern make sure to use the #cozylittlemess so I can see what you made!! Follow me and tag me on instagram @cozylittlemess.

 

This pattern is an original pattern by Valérie Prieur-Côté of Cozy Little Mess (April 2018). Please do not claim this pattern as your own. If you wish to share this pattern, you may link to this pattern but please do not reprint it on your site. You may keep a copy for your own personal use but please DO NOT sell the pattern or distribute it.  

You may sell products made from this pattern but please clearly credit the design to me, Valérie Prieur-Côté of Cozy Little Mess, and provide a link to my blog www.cozylittlemess.com.  Permission is NOT granted for mass production or factory manufacturing of any kind.  Thank you for being respectful and for your understanding!

I sometimes include affiliate links in my supply lists. Purchasing from these merchants earns me a small commission with no extra cost to you, and goes towards supporting Cozy Little Mess.

 

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