Heart valve suture with polyester patch and heart valve suture tool

Abstract

The invention relates to the technical field of medical instruments, in particular to a heart valve suture with a polyester patch and a heart valve suture tool. The heart valve suture comprises a suture suitable for suture or / and ligation work of soft tissue in a heart valve replacement operation; the sewing thread penetrates through the polyester patch, and the polyester patch is fixed in the length direction of the sewing thread; the polyester patch is made of a polyester fiber material, so that the pressure of a single suture line on the ring is dispersed through the polyester patch during suture, and meanwhile, the effective flap opening area is reduced by the polyester patch. According to the heart valve suture provided by the invention, the polyester patch is arranged on the suture in a penetrating manner, and the polyester patch is thinner than a felt gasket made of a polytetrafluoroethylene material in the prior art, so that the requirement of dispersing the pressure of a single suture on a ring during suturing is met, and the problems that the effective valve opening area is reduced due to the too thick patch, and blood flow disorder is caused are avoided; the negative influence on the hemodynamic performance is generated.

Description

Technical Field

[0001] The invention relates to the field of medical devices, and in particular to a heart valve suture with a polyester patch and a heart valve suturing tool. Background Art

[0002] Heart valve surgery is a surgical procedure used to treat heart valve disease. Heart valves are tissues located inside the heart whose main function is to control the direction of blood flow within the heart. The goal of surgery is to restore normal heart function by repairing or replacing a damaged heart valve.

[0003] In current valve surgery, valve sutures with polytetrafluoroethylene (PTFE) felt gaskets are often used for suturing. The advantage of this type of heart valve suture is that it can disperse the pressure of a single suture on the ring and reduce the formation of paravalvular leakage. However, due to the relatively thick thickness of the polytetrafluoroethylene felt gasket in the prior art, the effective valve area is reduced after suturing the valve ring, causing blood flow disturbances and increasing the mean pressure difference, which has a negative impact on hemodynamic performance. Therefore, those skilled in the art clinically need a heart valve suture that can disperse the suture pressure while minimizing the impact on the valve area. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to solve the problem that the thickness of the felt pad in the prior art is relatively thick, which leads to a reduction in the effective valve area after suturing the valve ring, causing blood flow turbulence, and increasing the mean pressure difference, thereby having a negative impact on the hemodynamic performance. To this end, the present invention provides a heart valve suture with a polyester patch, comprising:

[0005] Sutures, suitable for suturing and / or ligating soft tissues in heart valve replacement surgery;

[0006] A polyester patch, wherein the suture passes through the polyester patch and is fixed in the length direction of the suture; the polyester patch is made of polyester fiber and has a thickness ranging from 0.2 mm to 0.4 mm, so as to ensure that the pressure of a single suture on the ring is dispersed through the polyester patch during suturing, while reducing the problem of the polyester patch reducing the effective valve area.

[0007] Optionally, the polyester patch is a strip structure with curved surfaces at both ends; any two adjacent polyester patches on the suture are connected by fitting together through the curved surfaces to prevent adjacent polyester patches from stacking.

[0008] Optionally, a through hole for the suture to pass through is provided in the length direction of the polyester patch, and the through hole runs through the radial direction of the polyester patch;

[0009] The suture passes through the through hole along a U-shaped trajectory to fix the polyester patch on the suture.

[0010] Optionally, the polyester patch has a thickness of 0.3 mm.

[0011] Optionally, the length of the polyester patch is 6 mm, and the hole spacing between the two through holes on the polyester patch is 3.5 mm.

[0012] Optionally, at least two polyester patches are provided on each suture, and adjacent polyester patches are tightly fitted.

[0013] Optionally, the polyester patch is sterilized using sterile ethylene oxide.

[0014] Optionally, the arc-shaped surfaces at both ends of the polyester patch are semicircular surfaces.

[0015] A heart valve suturing tool comprises: a heart valve suture with a polyester patch; and a valve ring; during use, the polyester patch on the suture fits with the outer ring of the valve ring.

[0016] The technical solution of the present invention has the following advantages:

[0017] 1. The heart valve suture with a polyester patch provided by the present invention comprises:

[0018] Sutures, suitable for suturing and / or ligating soft tissues in heart valve replacement surgery;

[0019] A polyester patch, wherein the suture passes through the polyester patch and is fixed in the length direction of the suture; the polyester patch is made of polyester fiber and has a thickness ranging from 0.2 mm to 0.4 mm, so as to ensure that the pressure of a single suture on the ring is dispersed through the polyester patch during suturing, while reducing the problem of the polyester patch reducing the effective valve area.

[0020] In the present invention, the polyester fiber patch is used to replace the felt gasket with polytetrafluoroethylene in the prior art, so that the thickness of the patch can be effectively reduced. Reducing the thickness of the patch can effectively solve the problem that the thickness of the existing felt gasket is relatively thick, resulting in a reduction in the effective valve area after suturing the valve ring, causing blood flow disturbance, and increasing the mean pressure difference, thereby having a negative impact on the hemodynamic performance.

[0021] 2. The heart valve suture with polyester patches provided by the present invention is a strip-shaped structure with curved surfaces at both ends; any two adjacent polyester patches on the suture are connected by bonding through the curved surfaces to prevent adjacent polyester patches from stacking.

[0022] In the present invention, the two ends of the strip-shaped polyester patch are set as arc surfaces, and any two adjacent polyester patches on the suture are connected by the arc surfaces. The circular polyester patch can avoid the problem of patch stacking.

[0023] 3. The heart valve suture with a polyester patch provided by the present invention is provided with a through hole for the suture to pass through in the length direction of the polyester patch, and the through hole penetrates the radial direction of the polyester patch; the suture passes through the through hole along a U-shaped trajectory to fix the polyester patch on the suture.

[0024] In the present invention, through holes are arranged in the length direction of the polyester patch, and the suture runs through the radial direction of the polyester patch along a U-shaped track, so that the polyester patch is firmly and reliably fixed on the suture. The above structure has the advantages of firm and reliable fixation and easy installation of the polyester patch.

[0025] 4. The heart valve suture with a polyester patch provided by the present invention has a length of 6 mm and a hole spacing of 3.5 mm between the two through holes on the polyester patch. The polyester patch of the above size can effectively disperse the pressure of a single suture on the ring and reduce the formation of paravalvular leakage. At the same time, it avoids the problem that the thickness of the polyester patch is too thick, which causes a reduction in the effective valve area after suturing the valve ring, causes blood flow turbulence, and leads to an increase in the mean pressure difference, thereby having a negative impact on the hemodynamic performance.

[0026] 5. The heart valve suture with polyester patch provided by the present invention is sterilized by using sterilized ethylene oxide, thereby effectively ensuring the cleanliness of the heart valve suture.

[0027] 6. The heart valve suturing tool provided by the present invention comprises: a heart valve suture with a polyester patch; and a valve ring; during use, the polyester patch on the suture fits with the outer ring of the valve ring. The heart valve suturing tool in the present invention comprises a heart valve suture and has all the advantages of a heart valve suture. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the three-dimensional structure of a heart valve suture with a polyester patch provided by the present invention;

[0030] Figure 2 A schematic diagram of the structure of the heart valve sutures provided by the present invention, in which adjacent polyester patches are connected by the arc-shaped surfaces at their ends;

[0031] Figure 3 This is a schematic axial cross-sectional view of a polyester patch provided by the present invention;

[0032] Figure 4 A schematic diagram of a heart valve suturing operation provided by the present invention;

[0033] Figure 5 A top view of the positions of the through holes on the polyester patch provided by the present invention;

[0034] Figure 6 The figure is a schematic diagram of the connection structure of adjacent patches on a seam line in the prior art.

[0035] Description of reference numerals:

[0036] 1-suture; 2-polyester patch; 3-arc surface; 4-through hole. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] Example 1

[0040] See also Figure 1 and Figure 4 , Figure 1 A schematic diagram of the three-dimensional structure of a heart valve suture with a polyester patch in an embodiment of the present invention is shown. Figure 4 A schematic diagram of a heart valve suturing operation in an embodiment of the present invention is shown.

[0041] A heart valve suture with a polyester patch, comprising:

[0042] Suture 1, suitable for suturing and / or ligating soft tissues in heart valve replacement surgery;

[0043] A polyester patch 2, through which the suture 1 passes, and the polyester patch 2 is fixed in the length direction of the suture 1; at least two polyester patches 2 are arranged on each suture 1, and adjacent polyester patches 2 are closely fitted. The polyester patch 2 is made of polyester fiber, and the thickness of the polyester patch 2 is 0.3 mm, so as to ensure that the pressure of a single suture on the ring is dispersed through the polyester patch 2 during suturing, and at the same time reduce the problem of the polyester patch 2 reducing the effective valve area. In addition, in this embodiment, the polyester patch 2 is sterilized by sterilized ethylene oxide.

[0044] In this embodiment, see Figure 2 and Figure 6 , Figure 2 A schematic diagram of the heart valve suture structure in which adjacent polyester patches are connected by the arc-shaped surfaces at their ends in an embodiment of the present invention is shown. Figure 6 The schematic diagram of the connection structure of adjacent patches on a suture in the prior art is shown. The polyester patch 2 is a strip structure with arcuate surfaces 3 at both ends; any two adjacent polyester patches 2 on the suture 1 are connected by the arcuate surfaces 3 to prevent the adjacent polyester patches 2 from stacking. The arcuate surfaces 3 at both ends of the polyester patch 2 are semicircular surfaces.

[0045] In this embodiment, if Figure 3 The axial cross-sectional view of the polyester patch is shown in FIG. Figure 5 The top view of the through hole position on the polyester patch shown. The polyester patch 2 is provided with a through hole 4 for the suture 1 to pass through in the length direction, and the through hole 4 passes through the radial direction of the polyester patch 2; the suture 1 passes through the through hole 4 along a U-shaped trajectory to fix the polyester patch 2 on the suture 1. The length of the polyester patch 2 is 6mm, and the hole spacing between the two through holes 4 on the polyester patch 2 is 3.5mm. The above-mentioned suture 1 passes through the radial direction of the polyester patch 2 along the U-shaped trajectory, so that the polyester patch 2 is firmly and reliably penetrated and fixed on the suture 1. The above-mentioned structure has the advantages of firm and reliable fixation and easy installation.

[0046] Of course, this embodiment does not specifically limit the thickness value of the polyester patch 2 in the heart valve suture. In other embodiments, the polyester patch 2 can also be 0.2 mm or 0.4 mm, as well as other values.

[0047] Of course, this embodiment does not specifically limit the specific curvature size of the curved surface 3 at the two ends of the polyester patch 2. In other embodiments, the curved surface 3 at the two ends of the polyester patch 2 can also have other curvature values.

[0048] Of course, this embodiment does not specifically limit the length of the polyester patch 2 and the size of the through hole 4 on the polyester patch 2. In other embodiments, the length of the polyester patch 2 can also be a size other than 6 mm, and the hole spacing between the two through holes 4 on the polyester patch 2 can also be a size other than 3.5 mm.

[0049] Of course, the present embodiment does not specifically limit the sterilization method of the polyester patch 2. In other embodiments, the polyester patch 2 may also be sterilized by other methods.

[0050] Example 2

[0051] like Figure 4 The schematic diagram of the heart valve suturing operation is shown. The heart valve suturing tool comprises: a heart valve suture with a polyester patch; and a valve ring; during use, the polyester patch 2 on the suture 1 fits with the outer ring of the valve ring.

[0052] Heart valve sutures, including:

[0053] Suture 1, suitable for suturing and / or ligating soft tissues in heart valve replacement surgery;

[0054] The polyester patch 2, the suture 1 passes through the polyester patch 2, and the polyester patch 2 is fixed in the length direction of the suture 1; the polyester patch 2 is made of polyester fiber, and the thickness of the polyester patch 2 is 0.3mm, so as to ensure that the pressure of a single suture on the ring is dispersed through the polyester patch 2 during suturing, while reducing the problem of the polyester patch 2 reducing the effective valve area.

[0055] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A heart valve suture with a polyester patch, characterized in that: include: Suture (1), suitable for suturing and / or ligating soft tissue in heart valve replacement surgery; A polyester patch (2), wherein the suture (1) passes through the polyester patch (2) and the polyester patch (2) is fixed in the length direction of the suture (1); the polyester patch (2) is made of polyester fiber and has a thickness ranging from 0.2 mm to 0.4 mm, so as to ensure that the pressure of a single suture on the ring is dispersed through the polyester patch (2) during suturing, while reducing the problem of the polyester patch (2) reducing the effective valve area.

2. The heart valve suture with a polyester patch according to claim 1, characterized in that: The polyester patch (2) is a strip structure with curved surfaces (3) at both ends; any two adjacent polyester patches (2) on the suture (1) are connected by abutting against each other through the curved surfaces (3) to prevent adjacent polyester patches (2) from stacking.

3. The heart valve suture with a polyester patch according to claim 2, characterized in that: A through hole (4) for the suture (1) to pass through is provided in the length direction of the polyester patch (2), and the through hole (4) runs through the radial direction of the polyester patch (2); The suture (1) passes through the through hole (4) along a U-shaped trajectory, and the polyester patch (2) is fixed on the suture (1).

4. The heart valve suture with a polyester patch according to claim 3, characterized in that: The thickness of the polyester patch (2) is 0.3 mm.

5. The heart valve suture with a polyester patch according to claim 4, characterized in that: The length of the polyester patch (2) is 6 mm, and the hole spacing between the two through holes (4) on the polyester patch (2) is 3.5 mm.

6. The heart valve suture with a polyester patch according to any one of claims 2 to 5, characterized in that: At least two polyester patches (2) are arranged on each suture (1), and adjacent polyester patches (2) are tightly fitted.

7. The heart valve suture with a polyester patch according to claim 1, characterized in that: The polyester patch (2) is sterilized using sterilized ethylene oxide.

8. The heart valve suture with a polyester patch according to claim 2, characterized in that: The arc-shaped surfaces (3) at both ends of the polyester patch (2) are semicircular surfaces.

9. A heart valve suturing tool, characterized in that: include: The heart valve suture with a polyester patch according to any one of claims 1 to 8; as well as, Valve ring; During use, the polyester patch (2) on the suture (1) fits the outer ring of the valve ring.

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