阅读说明：本技术 胸骨固定系统 (Sternum fixing system ) 是由 罗万川 王春莹 王强 于 2021-09-13 设计创作，主要内容包括：本发明涉及医疗器械技术领域。胸骨固定系统,包括引导弯钩以及扎带,引导弯钩包括顺序连接的引导部、弯折转向部以及连接部；引导部为尖端部分,尖端部分的厚度以及宽度均从邻近弯折转向部至远离弯折转向部递减；所述弯折转向部呈弧形弯折；连接部用于与扎带相连。本专利通过优化胸骨固定系统,通过改良引导弯钩的结构及引导弯钩的外表面涂敷有用于防止镍离子析出且减少摩擦的涂层,改善了其对扎带的引导穿过效果,给予扎带穿过胸部的肌肉组织提供足够的空间。由于在引导部与连接部之间增设有弯折转向部,便于在引导弯钩穿过胸部的肌肉组织的过程中,加大了穿过通道,减少了后期扎带穿过的阻力。(The invention relates to the technical field of medical instruments. The sternum fixing system comprises a guide hook and a binding belt, wherein the guide hook comprises a guide part, a bending steering part and a connecting part which are sequentially connected; the guide part is a tip part, and the thickness and the width of the tip part are gradually reduced from the adjacent bending steering part to the far away bending steering part; the bending steering part is bent in an arc shape; the connecting part is used for being connected with the binding belt. This patent has improved its effect of leading the passing through to the ribbon through optimizing sternum fixation system, through the structure of improvement guide hook and the surface coating of guide hook is used for preventing nickel ion from appearing and reduce the coating of friction, gives the ribbon and passes the muscle tissue of chest and provide sufficient space. Because the bending steering part is additionally arranged between the guiding part and the connecting part, the passing channel is enlarged and the resistance for passing the later-period bandage is reduced in the process of guiding the hook to pass through the musculature of the chest.)

1. The sternum fixing system comprises a guide hook and a binding belt, and is characterized in that the guide hook comprises a guide part, a bending steering part and a connecting part which are sequentially connected;

the guide part is a tip part, and the thickness and the width of the tip part are gradually reduced from the adjacent bending steering part to the far away bending steering part;

the bending steering part is bent in an arc shape;

the connecting portion is used for being connected with the ribbon.

2. The sternal fixation system of claim 1, where: the outer surface of the guiding hook is coated with a coating for preventing nickel ions from being extracted and reducing friction.

3. The sternal fixation system of claim 1, where: the side of the guide hook connecting ribbon is provided with a pattern structure;

the pattern structure is provided with at least one hole, and the pattern structure is a single-row or double-row or multi-row hole;

the shape of the hole is any one of a circle, an ellipse, a square, a rectangle, a triangle, a quadrangle, a trapezoid, a star, a diamond, a heart, a waist and a polygon;

the hole is a blind hole that does not penetrate the connection portion of the guide hook or a through hole that penetrates the connection portion of the guide hook.

4. The sternal fixation system of claim 1, where: the connecting part comprises a first end part connected with the bending steering part and a second end part connected with the binding belt, the first end part is connected with the second end part, and the cross section area of the first end part is larger than or equal to that of the second end part;

the tie is injection molded at the second end.

5. The sternal fixation system of claim 1, where: the binding belt comprises a binding belt and a lock catch which are sequentially connected, and the binding belt is fixedly connected with the connecting part;

one side of the binding belt is provided with at least two grooves for clamping the lock catches, and the length direction of the binding belt is provided with the grooves;

the other side of the binding belt is a smooth surface.

6. The sternal fixation system of claim 1, where: one side of the bandage contacting with the sternum is taken as a contact surface;

the buckle of the binding belt is provided with a buckle hole for guiding the binding belt of the binding belt to pass through, and the distance between one side of the buckle hole, which is far away from the contact surface, and the contact surface is gradually increased from the buckle to the fixedly connected binding belt along the length direction;

the lock catch is provided with a lock catch hole for clamping the binding belt.

7. The sternal fixation system of claim 1, where: the two sides of the sternum connecting ribs are the left side and the right side of the sternum, and the lock catch of the bandage is used for being fixed on the left side or the right side of the sternum.

8. The sternal fixation system of claim 1, where: the ribbon is I-shaped, crossed or banded.

9. The sternal fixation system of claim 1, where: the binding belt is I-shaped and comprises at least two binding belts arranged side by side, and the adjacent binding belts are connected through a connecting structure;

one end of the binding belt is fixed with one guide hook;

the other end of the binding belt is fixed with a lock catch.

10. The sternal fixation system of claim 1, where: the binding belt is in a cross shape and comprises at least two binding belts, and the same sides of the binding belts are connected with the guide hooks;

the binding bands are fixedly connected with each other in a hinged or crossed manner.

Technical Field

The invention relates to the technical field of medical equipment, in particular to a sternum fixing system.

Background

The chest surgery is about 25 ten thousand per year and the lung tumor surgery is about 20 ten thousand per year in China. At present, most of cardiac great vessel surgical operations and lung tumor operations at home and abroad adopt sternum median splitting, namely, after a longitudinal sternum is split, the operation is performed, and after the operation is finished, the left and right sternums of the longitudinal sternum splitting are closed, and then are sutured and fixed again. The conventional method is to bundle the first to fourth rib spaces and the fifth rib space using steel wires or other metal wires. However, in many years of clinical practice, it is found that due to the thin metal wire, the sternum is easily torn by applying a steel wire or a metal wire fixing mode after an operation, and non-operation injuries such as sternum cutting are caused, so that the sternum is open, especially for the old and patients with osteoporosis.

The sternal pyridosce is common in the later period of thoracotomy, and the reasons are various, and the postoperative sternal pyridosce is caused by the fact that patients with coronary heart disease bypass are older and have osteoporosis; the preoperative course of a patient with valve operation is long, the patient is poor in physique, and the sternum healing is affected by the complications of cardiac insufficiency, hepatic and renal insufficiency and hypoproteinemia; the aorta surgery time and the extracorporeal circulation time are both longer, so that the infection chance after the surgery is increased, and the sternum is open; long-term smoking before operation can cause postoperative cough and lung infection, and influence the stability of fixed sternum; diabetes is combined, the infection chance is increased, and the healing of sternum and tissues is influenced; the sternum is also open due to the suturing technique of the doctor, the position, tightness and even the quantity of the steel wire suture.

Sternal infection is a serious complication of cardiac surgery, is one of the main reasons for failure of cardiac surgery, and is a difficult problem for cardiac surgeons. The treatment of the sternum infection is very tricky, and particularly, the treatment is often converted into chronic persistent chronic infection of critically ill patients with sternum open and mediastinal infection of large-area wound surfaces. One of the high causes of this phenomenon is: surgeons emphasize the economy and simplicity of traditional steel wire chest closing, which is suitable for most patients, but the postoperative sternum is open for special patients, so that the economic burden and the operation risk of the patients are increased; the second is as follows: the prevention is not conscious, and the sternum is easy to open finally by adopting the general method and measures without considering the specific condition of the patient.

In order to change the high incidence of the complications, in the conventional preventive measures, the method of closing the chest by adopting a medical instrument has an obvious effect on preventing the sternal opening, and the method effectively prevents postoperative infection of the sternum. Secondly, such procedures must be followed and treated continuously at a later stage, and the application of Magnetic Resonance Imaging (MRI) cannot be avoided, so that the nuclear magnetic compatibility of the implanted material is the best solution to the contradiction.

In summary, there is a need for a new sternum fixation system that is safe and effective, and is compatible with Magnetic Resonance Imaging (MRI), which can reduce postoperative complications of patients and does not affect subsequent diagnosis and treatment of patients.

Patent publication No. CN203524752U discloses a binding band locking and fixing device for orthopedics department, which is composed of a binding band with strip teeth, a stainless steel hook and a lock catch; the strip-shaped binding belt with teeth is provided with tooth grooves; the stainless steel hook is provided with a tip; the center of the lock catch is provided with a square lock hole which is communicated up and down, one side of the inner wall of the lock hole is provided with an elastic lock tooth, the bundling bandage can be bent to extend into the lock hole, and the lock catch allows the bundling bandage to slide in the forward direction, be mutually occluded and locked in the reverse direction, and cannot be withdrawn.

The above patent has the disadvantage that the stainless steel hook is simply bent in an arc shape and has uniform thickness, so that the band is not convenient to guide and pass through. The stainless steel hook can separate out nickel ions when contacting blood or body fluid of a human body, and cause allergic reaction of a patient. The stainless steel hook has a pair of concave grooves at the connection with the strapping band, and this uneven structure can cause damage to the tissue when passing through the tissue. The side of the binding band contacting with the sternum or muscle tissue is provided with a groove, and a gap exists between the binding band and the sternum or muscle tissue, which can cause tissue infection and is not beneficial to healing after operation. The single binding band has poor positioning effect and is easy to shift.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a safe and effective novel sternum fixing system which is compatible with Magnetic Resonance Imaging (MRI), can ensure that the sternum can be involuted in the safest mode and can continuously heal and grow, can reduce postoperative complications of a patient, can not influence the subsequent diagnosis and treatment of the patient, and solves the technical problems that the existing fixing system is poor in fixing effect, easy to shift, easy to cause postoperative infection and the like.

In order to achieve the above object, the present invention provides a sternum fixation system, comprising a guide hook and a strap, wherein the guide hook comprises a guide portion, a bending turn portion and a connecting portion, which are connected in sequence;

the guide part is a tip part, and the thickness and the width of the tip part are gradually reduced from the adjacent bending steering part to the far away bending steering part;

the bending steering part is bent in an arc shape;

the connecting portion is used for being connected with the ribbon.

This patent improves its effect of leading the through-put of ribbon through optimizing sternum fixation system, through the structure of improvement guide hook, gives the ribbon and passes the musculature of chest and provide sufficient space. Because the bending steering part is additionally arranged between the guiding part and the connecting part, the passing channel is enlarged and the resistance for passing the later-period bandage is reduced in the process of guiding the hook to pass through the musculature of the chest.

In the design of the traditional sternum fixing system, the metal hook form with uniform curvature is adopted to ensure the fluency of the passing action, but the multi-section form is adopted for steering, so that the resistance is not increased, but the passing channel is enlarged, and the resistance of the band passing can be reduced.

More preferably, the guiding hook may be made of medical material such as nitinol or stainless steel.

Further preferably, the outer surface of the guiding hook is coated with a coating for preventing nickel ions from being extracted and reducing friction. For example, the outer surface of the guide hook is covered with at least one coating selected from an oxide layer, a nano-coating, a parylene coating, a teflon coating, a super-slip coating, and a polymer coating. The coating can prevent nickel ions from being separated out, reduce the incidence rate of anaphylactic reaction of patients and improve the biocompatibility and the corrosion resistance of the coating. Meanwhile, the coating can reduce the friction force between the guiding hook and the muscle tissue, so that the guiding hook can pass through the muscle tissue more smoothly.

The hook is guided in a human body to be contacted with blood or body fluid, the liquid contains chloride ions which have strong corrosiveness to nickel-titanium alloy and stainless steel, nickel ions can be separated out, and because the nickel ions are toxic, part of patients can be allergic or even poisoned because of the nickel ions, the endothelialization of cells at the defect positions of the patients is not facilitated, and the rehabilitation and the long-term health of the patients, particularly newborns, are not facilitated.

Further preferably, the coating can be applied by a method of high-temperature oxidation, chemical oxidation, plasma spraying, magnetron sputtering, chemical surface heat treatment, surface spraying, dip coating, laser cladding, electrochemical deposition, sol-gel method and vapor deposition.

Preferably, the side of the guide hook connecting tie is provided with a pattern structure; the pattern structure is provided with at least one hole, and the pattern structure is a single-row or double-row or multi-row hole; the shape of the hole is any one of a circle, an ellipse, a square, a rectangle, a triangle, a quadrangle, a trapezoid, a star, a diamond, a heart, a waist and a polygon; the hole is a blind hole that does not penetrate the connection portion of the guide hook or a through hole that penetrates the connection portion of the guide hook. The design is convenient for being matched and connected with the cable tie.

Further preferably, the connecting portion comprises a first end portion connected with the bending steering portion and a second end portion connected with the binding belt, the first end portion is connected with the second end portion, and the cross-sectional area of the first end portion is larger than or equal to that of the second end portion;

the tie is injection molded at the second end. The connecting part and the binding belt are smoothly connected, so that the binding belt can conveniently penetrate through the muscle tissue of the chest, and the binding belt is more stably and firmly connected with the connecting part.

Further preferably, the binding belt comprises a binding belt and a lock catch which are connected in sequence, and the binding belt is fixedly connected with the connecting part;

one side (for example, the side not in contact with the sternum) of the binding band is provided with at least two grooves for clamping the lock catches, and the length direction of the binding band is provided with the grooves;

the other side of the binding band (such as the side in contact with the sternum) is smooth.

The friction and resistance to penetration into the muscle tissue can be reduced. The cable tie has sufficient friction and restraint to hold the corresponding sternum relatively firmly together, thereby facilitating apposition growth of bone and muscle tissue.

Further preferably, one side of the bandage contacting with the sternum is taken as a contact surface;

the buckle of the binding belt is provided with a buckle hole for guiding the binding belt of the binding belt to pass through, and the distance between one side of the buckle hole, which is far away from the contact surface, and the contact surface is gradually increased from the buckle to the fixedly connected binding belt along the length direction;

the lock catch is provided with a lock catch hole for clamping the binding belt.

The bandage is prevented from forming a gap with sternum or muscle tissue, thereby preventing infection of the patient.

Further preferably, the two sides of the sternum connecting the ribs are the left side and the right side of the sternum, and the fastener of the bandage is used for being fixed on the left side or the right side of the sternum.

This fixation and position facilitates rapid growth of muscle tissue on the sternum surface, reducing healing time.

Further preferably, the bandage is made of a high polymer material, such as polyether-ether-ketone, has good physical and mechanical properties and biocompatibility, and meets the requirements of the standard of implanted medical instruments.

The ribbon is I-shaped, crossed or banded. The bandage with different shapes is suitable for different sternum positions, the I-shaped bandage is suitable for being fixed on the sternum connected with the ribs, the cross-shaped bandage is suitable for being fixed on a sternum handle or the sternum connected with the ribs, and the belt-shaped bandage is suitable for being placed in the gap between the two ribs. The bandage is I-shaped or crossed, so that the bandage is not easy to shift after operation. The band is in the shape of a strip, which arrangement, although less stable than i-and cross-shaped, is simpler to handle. These designs all allow the sternum fixation system to be attached to the surface of the sternum in a seamless manner, avoiding the formation of false cavities and resulting sternal infection.

Further preferably, the binding belt is in an I shape, the binding belt comprises at least two binding belts arranged side by side, and the adjacent binding belts are connected through a connecting structure;

one end of the binding belt is fixed with one guide hook;

the other end of the binding belt is fixed with a lock catch.

The distance between two binding belts arranged side by side of the I-shaped binding belt is just the width of the corresponding rib, so that the binding belt is not easy to shift after operation and is more firmly fixed on the surface of the sternum.

Further preferably, the binding belt is in a cross shape and comprises at least two binding belts, and the guide hooks are connected to the same sides of the binding belts;

the binding bands are fixedly connected with each other in a hinged or crossed manner.

The two binding belts can be rotated to proper positions according to the shape of the sternum of a patient in a hinged mode and then are bound and fixed, so that the application range is wider; the crossed fixing connection is selected according to the shape and the size of the sternum of a patient, the application range is relatively narrow, and the fixing is firmer.

The using method comprises the following steps:

in the operation process, the guiding hook penetrates through the muscular tissue on one side of the sternum, then penetrates through the muscular tissue on the other side of the sternum, is cut at the connecting part of the guiding hook and the binding belt, after the sternum is aligned and spliced, the two sides of the sternum are clamped by using instruments to ensure that the two sides of the sternum are completely combined, and then the binding belt is firmly locked and connected on the side surface of the sternum.

Has the advantages that:

the novel sternum fixing system made of the high polymer material can ensure that the sternum which is separated from left and right in the operation is superposed in three dimensions of upper, lower, left, right, front and back, ensures that the damaged sternum is involuted in the safest way, and heals and grows quickly and accurately, and the bandage can be firmly fixed on the surface of the sternum without displacement.

Drawings

FIG. 1 is a partial schematic structural view of embodiment 1 of the present invention;

fig. 2 is a schematic view showing a structure of a guide hook according to embodiment 1 of the present invention;

fig. 3 is another structural view of a guide hook according to embodiment 1 of the present invention;

fig. 4 is another structural view of a guide hook according to embodiment 1 of the present invention;

FIG. 5 is a schematic view showing a construction of a binding tape according to embodiment 1 of the present invention;

FIG. 6 is another schematic construction of a twist tie according to embodiment 1 of the present invention;

FIG. 7 is a schematic illustration of a closed tie according to embodiment 1 of the present invention;

fig. 8 is a partial cross-sectional view of the structure of fig. 7 in accordance with the present invention.

Wherein: the device comprises a guide hook 1, a binding belt 2, a guide part 11, a bending and turning part 12, a connecting part 13, a binding belt 21, a lock catch 22, a lock catch hole 23, a connecting structure 24, a groove 25, a first end part 131, a second end part 132 and a pattern structure 133.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Embodiment 1, referring to fig. 1 to 8, a sternum fixation system comprises a guide hook 1 made of a metal material and a strap 2, wherein the guide hook 1 comprises a guide portion 11, a bent and turned portion 12 and a connecting portion 13 which are sequentially connected; the leading part 11 is a tip part, and the thickness and the width of the tip part are gradually reduced from the adjacent bending steering part 12 to the far away bending steering part 12; the bending steering part is bent in an arc shape; the connecting portion 13 is connected to the band 2. This patent improves its guiding and passing effect of the band 2 by optimizing the sternal fixation system, by improving the structure of the guiding hook 1, and provides sufficient space for the band 2 to pass through the musculature of the chest. Because the bending steering part 12 is additionally arranged between the guide part 11 and the connecting part 13, the passing channel is enlarged and the resistance of the bandage 2 passing in the later period is reduced in the process of guiding the hook 1 to pass through the muscle tissue of the chest.

The length direction of the guide part and the length direction of the connecting part form an acute angle.

In the design of traditional sternum fixing system, often in order to guarantee the fluency of the action of passing, adopt the metal crotch form of unified curvature, and this patent adopts the multistage form to turn to, not only does not increase the resistance, on the contrary, has increaseed the passageway of passing, can reduce the resistance that ribbon 2 passed.

The guiding hook 1 may be made of medical material such as nitinol or stainless steel. The outer surface of the guiding hook 1 is coated with a coating for preventing nickel ions from being extracted and reducing friction. For example, the outer surface of the guide hook 1 is covered with at least one coating of an oxide layer, a nano coating, a parylene coating, a teflon coating, a super-slip coating, and a polymer coating. The outer surface of the guide hook 1 is covered with an oxide layer formed by heating the material of the guide hook 1 at a high temperature. The coating can prevent nickel ions from being separated out, reduce the incidence rate of anaphylactic reaction of patients and improve the biocompatibility and the corrosion resistance of the coating. Meanwhile, the coating can reduce the friction force between the guiding hook and the muscle tissue, so that the guiding hook can pass through the muscle tissue more smoothly. The hook 1 is guided in the human body to contact with blood or body fluid, and the liquid contains chloride ions which have strong corrosiveness to nickel-titanium alloy and stainless steel, so that nickel ions can be separated out. The coating can be coated by adopting a method of high-temperature oxidation, chemical oxidation, plasma spraying, magnetron sputtering, chemical surface heat treatment, surface spraying, dip coating, laser cladding, electrochemical deposition, sol-gel method and vapor deposition.

Referring to fig. 2, 3 and 4, the side of the guide hook 1 connected with the binding tape 2 is provided with a pattern structure 133; the pattern structure 133 is provided with at least one single row or two or more rows of holes; the shape of the hole is any one of circle, ellipse, square, rectangle, triangle, quadrangle, trapezoid, star, diamond, heart, kidney and polygon; the hole is a blind hole that does not penetrate the connection 13 of the guide hook 1 or a through hole that penetrates the connection of the guide hook. The design is convenient for being matched and connected with the binding belt 2. Referring to fig. 2, the aperture is shown as an elongated kidney-shaped aperture. Referring to fig. 3, the holes are shown as at least three kidney-shaped holes arranged side by side along the length direction of the connecting portion 13, which is the width direction of the connecting portion 13. Referring to fig. 4, a circular hole is shown where the holes are arranged in two rows.

The connecting part 13 comprises a first end part 131 connected with the bending steering part 12 and a second end part 132 connected with the binding belt 2, the first end part is connected with the second end part, and the cross section area of the first end part is larger than or equal to that of the second end part; the band 2 is injection moulded at the second end of the connecting portion 13. The smooth connection of the connecting portion 13 and the binding band 2 facilitates the binding band 2 to pass through the muscle tissue of the chest, and the connection of the binding band 2 and the connecting portion 13 is more stable and firm.

The binding belt 2 comprises a binding belt 21 and a lock catch 22 which are connected in sequence, and the binding belt 21 is fixedly connected with the connecting part 13; one side (for example, the side not in contact with the sternum) of the binding band 21 is provided with at least two grooves 25 for clamping the lock catches 22, and the length direction of the binding band 21 is provided with the grooves 25; the other side of the binding band 21 (e.g., the side in contact with the sternum) is smooth. The friction and resistance to penetration into the muscle tissue can be reduced. The strap 2 has sufficient friction and restraint to hold the corresponding sternum relatively firmly together to facilitate apposition growth of bone and muscle tissue.

Referring to fig. 7 and 8, one side of the bandage 2 contacting the sternum is taken as a contact surface; the lock catch 22 of the binding belt 2 is provided with a lock catch hole 23 for guiding the binding belt 21 of the binding belt to pass through, and the distance between the side of the lock catch hole 23 far away from the contact surface and the contact surface is increased from the lock catch 22 to the fixedly-connected binding belt 21 along the length direction, so that the binding belt 2 is prevented from forming a gap with the sternum or muscle tissue, and infection of a patient is prevented. The locking hole is used to fix the tying band 21 to the lock 22 more firmly.

The two sides of the sternum connecting the ribs are the left side and the right side of the sternum, and the lock 22 of the bandage 2 is used for being fixed on the left side or the right side of the sternum. This fixation and position facilitates rapid growth of muscle tissue on the sternum surface, reducing healing time.

The bandage 2 is made of high polymer materials, such as polyether-ether-ketone, has good physical and mechanical properties and biocompatibility, and meets the requirements of the standard of implanted medical instruments.

Referring to fig. 5, 6, 7 and 8, the band 2 is i-shaped or cross-shaped so that the band 2 is not easily displaced after surgery. In an alternative embodiment the band 2 can also be provided in the form of a band, which arrangement, although less stable than i-shaped and cross-shaped, is simpler to handle. Meanwhile, the bandages with different shapes are suitable for different sternum positions, the I-shaped bandage is suitable for being fixed on the sternum connected with the ribs, the cross-shaped bandage is suitable for being fixed on a sternum handle or the sternum connected with the ribs, and the belt-shaped bandage is suitable for being placed in a gap between the two ribs. These designs all allow the sternum fixation system to be attached to the surface of the sternum in a seamless manner, avoiding the formation of false cavities and resulting sternal infection.

The method comprises the following specific steps:

referring to fig. 5, the binding belt 2 is h-shaped, the binding belt 2 includes at least two binding belts 21 arranged side by side, and adjacent binding belts 21 are connected by a connecting structure 24; one end of the binding band 21 is fixed with a guiding hook 1; the other end of the binding band 21 is fixed with a lock 22. The distance between the two binding belts arranged side by side of the I-shaped binding belt 2 is just the width of the corresponding rib, so that the post-operation binding belt 2 is not easy to shift and is more firmly fixed on the surface of the sternum.

Referring to fig. 6, the binding belt 2 is in a cross shape, the binding belt 2 comprises at least two binding belts 21, and the same sides of the two binding belts 21 are connected with the guiding hooks 1; the two binding bands 21 are hinged or fixedly connected in a crossed manner. The two binding belts 21 can be rotated to proper positions according to the shape of the sternum of a patient in a hinged mode and then are bound and fixed, so that the application range is wider; the crossed fixing connection is selected according to the shape and the size of the sternum of a patient, the application range is relatively narrow, and the fixing is firmer.

Referring to fig. 7 and 8, the binding band 2 includes at least two binding bands 21 arranged side by side, the end portions of all the binding bands 21 are connected with the lock catches 22, and the lock catches 22 are provided with lock catch holes 23 for clamping the binding bands 21, so as to fix the binding bands 21 on the lock catches 22 more firmly. The catches of the ends of adjacent straps 21 may be connected by a connecting structure 24.

The using method comprises the following steps:

in the operation process, the guiding hook 1 penetrates through the muscular tissue on one side of the sternum, then penetrates through the muscular tissue on the other side of the sternum, is cut at the joint of the guiding hook 1 and the binding belt 2, after the sternum is aligned and spliced, the two sides of the sternum are clamped by using instruments to enable the two sides of the sternum to be completely combined, and then the binding belt 2 is firmly locked and connected on the side surface of the sternum.

Has the advantages that:

the novel sternum fixing system made of the high polymer material can ensure that the sternum which is separated from left and right in the operation is superposed in three dimensions of upper, lower, left, right, front and back, ensures that the damaged sternum is involuted in the safest way, and heals and grows quickly and accurately, and the bandage 2 can be firmly fixed on the surface of the sternum without displacement.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.