Sternum suture material and its manufacturing method
First Claim
1. A sternum suture material used when closing the sternum during cardiac surgery, the material made of thin monofilaments or thin wire cross-woven by combining the monofilament and the wire and forming one loop or a multiple number of chain-like rings in the cable, the thread or the wire becomes a straight line during suture due to tension, the cable easy to fasten at time of fastening because of utilizing the rings of the chain, a straight needle or a curved needle to pierce the sternum is connected to one or both ends of the wire, the end parts of the wire to which the needle is connected is woven in a thinly narrowed way.
0 Assignments
0 Petitions
Accused Products
Abstract
Monofilament wires or threads are woven, becoming a wire with ring forms. The center part of the wire is in a plain weave in a tape form. The material is to be either non-magnetic property material or bio-absorbable material. An automatic weaving machine is utilized to manufacture the wire. The center part of the metal cable is woven with thin metal filaments, and either one end or both ends of the cable are hardened with silver wax to facilitate the attachment of a suture needle to the ends of the cable. Also, the hardened end of the cable is directly processed into a suture needle form. A U-shaped sternum fixing hook and an adjusting screw press and fix the sternum, a piercing tool pierces a hole into the sternum, then sternum suture material is passed through the sternum, then the sternum suture is conducted. The thickness of the base of the sternum fixing hook is set to prevent the needlepoint of the piercing tool from reaching the lung, or a protection plate can be provided. The center part of the wire is made in a U-shape in advance. A straight needle with a wire is fixed, and pierced from below the sternum. Sternum fixing hooks are continuously fixed with ball joints, making a fixing arm and a movable arm, having the function to open and close the incision sides of the sternum. With the above proposal it is possible to provide a smooth and easy-to-handle sternum suture material which does not establish metal fatigue, prevents halation when using the MRI, health insurance can be applied, easier to fasten, less bleeding, prevents vertical gaps of the sternum when closing the sternum. Piercing the sternum can be done easily, precisely, and safely, and then conduct the sternum suture. The operator does not need to remove needles or guide-wires. This is less invasive to the sternum. This invention does not harm the lung. An affordable and convenient manufacturing method can be provided.
-
Citations
18 Claims
- 1. A sternum suture material used when closing the sternum during cardiac surgery, the material made of thin monofilaments or thin wire cross-woven by combining the monofilament and the wire and forming one loop or a multiple number of chain-like rings in the cable, the thread or the wire becomes a straight line during suture due to tension, the cable easy to fasten at time of fastening because of utilizing the rings of the chain, a straight needle or a curved needle to pierce the sternum is connected to one or both ends of the wire, the end parts of the wire to which the needle is connected is woven in a thinly narrowed way.
-
7. A manufacturing method of sternum suture metal cable with a needle attached, a manufacturing method of a metal cable used for sternum suture during cardiac surgery, wherein the center part of the cable is woven of thin metal monofilaments with a braiding machine or a Torsion, either one or both ends of the cable has flax applied, then silver wax is adhered by heating the wax with a burner thence harden the ends to facilitate the needle attachment for suture.
- 8. A sternum suture metal cable used during cardiac surgery, wherein the center part of the cable is woven of thin metal monofilaments with a braiding machine or a Torsion, either one or both ends of the cable has flax applied, then silver wax is adhered by heating the wax with a burner thence harden the thin metal monofilaments, and furthermore process the ends into a straight or a curved needle with a pressing machine, the end of the cable itself is made into a needle to pierce through the sternum directly.
- 10. A sternum piercing tool utilized for sternum suture during cardiac surgery, consisting of three parts being sternum fixing hook, adjusting screw, and piercing tool, wherein a thread cutting hole is made at the upper part of a U-shaped sternum fixing hook for the adjusting screw to be inserted, so when the adjusting screw is rotated the sternum is pressed and fixed between the base part of the sternum fixing hook and the adjusting screw, a hole for the piercing tool is made in a vertical direction at the center of the adjusting screw, the base part of the sternum fixing hook has a hole in the direction of the needlepoint of the piercing tool, and that hole is continued onto the side slit from which the sternum suture material are pulled out after being passed through the sternum, and side ditches or spikes and such are applied at the top part of the base portion of the sternum fixing hook for slip-proof of the sternum, when the sternum if pressed and fixed between the base part of the sternum fixing hook and the adjusting screw, a hole is pierced into the sternum with the piercing tool from the hole at the top of the adjusting screw, the hole through which sternum suture material are passed through to the sternum, and then the suture is conducted.
- 13. A sternum piercing tool used for sternum suture during cardiac surgery, which consists of three parts being the sternum fixing hook, adjusting screw, and piercing tool, wherein a thread cutting hole is made at the upper part of a U-shaped sternum fixing hook for the adjusting screw to be inserted, so when the adjusting screw is rotated the sternum is pressed and fixed between the base part of the sternum fixing hook and the adjusting screw, a hole for the piercing tool is made in a vertical direction at the center of the adjusting screw, the base part of the sternum fixing hook has a hole in the direction of the needlepoint of the piercing tool, and that hole is continued onto the side slit for which the sternum suture material are pulled out after being passed through the sternum, and side ditches or spikes and such are applied at the top part of the base portion of the sternum fixing hook for slip-proof of the sternum, the hole at the base portion of the sternum fixing hook is a piercing hole expanding in the lower part in a cone shape facilitating the passing through of the sternum suture material from below, the sternum is pressed and fixed between the base part of the sternum fixing hook and the adjusting screw, a hole is pierced onto the sternum with the piercing tool from the hole at the top of the adjusting screw, the hole through which sternum suture material is passed through to the sternum, and then the suture is conducted.
- 16. A sternum piercing tool used for sternum suture during cardiac surgery, wherein suture material is connected to the end of the piercing tool as a united part, the connection part between the piercing tool and the suture material are pressed in the piercing tool fixing slit at the base part of the sternum fixing hook, it is then screwed and fixed from the side with fixing screw, a thread cutting hole is made at the top part of the sternum fixing hook to insert the pull-up-screw, there is a hole at the base of the pull-up-screw for the needlepoint of the piercing tool to enter, so when the pull-up-screw is rotated the sternum fixing hook is pulled up, the piercing tool pierces the sternum from the back, the needlepoint of the piercing tool digs into the base of the pull-up-screw, then the fixing screw is loosened and the sternum fixing hook is taken off, the needlepoint of the piercing tool is pulled up and then the suture is conducted.
Specification