Sternum suturing system with hemostatic effect
By designing a sternum suture system combining felt sheets and braided sutures, the problem of bleeding from sternum wire suture needles after cardiac surgery is solved, achieving a more reliable hemostasis effect and faster operation process.
Patent Information
- Application Number
- CN202420596949.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-03-26
Smart Images
Figure CN222487569U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical devices and relates to a sternum suture system with a hemostatic effect. Background Art
[0002] At present, most cardiac surgeries need to be performed through a median sternotomy incision, and sternal wire suture fixation after cardiac surgery is the most classic, longest-used and most economical sternal fixation method in clinical practice. In clinical practice, a needle-carrying wire is often used to pass through the sternum or intercostal space in an intermittent or "8" suture. However, due to the effect of cardiac surgery on coagulation function, bleeding from the wire suture needle eye is common. Almost every cardiac surgery requires repeated sutures near the wire needle eye to stop bleeding after sternal wire suture.
[0003] There are two types of bleeding from wire puncture needle holes. The first type is bleeding caused by wire damage to the muscles and fat tissue under the sternum. For this type of situation, the treatment method is to first try to suture around the bleeding with an 8-shaped suture or suture the intercostal space up and down and then tie a knot to tighten the tissue. However, sometimes due to the fragility of the tissue, the hemostatic suture causes more bleeding. In this case, it is necessary to suture again with a felt suture to stop the bleeding successfully. The second type is bleeding from the bone marrow cavity after the wire passes through the sternum and flows out along the wire needle point. The treatment method is to suture the tissue around the wire needle point with an 8-shaped suture to close the sternal needle hole. However, sometimes due to insufficient tissue or fragility of the tissue, the hemostasis fails. It is necessary to suture around the wire again with a felt needle and close the wire needle hole with a felt. It can be seen that suture with a felt can solve most of the bleeding from wire needle holes, but in clinical practice, because the felt suture is cumbersome to make, it is not widely used. Some people believe that a certain proportion of bleeding from wire needle holes can be self-limited, so observation is often chosen for bleeding that is not effective in repeated suturing. However, there is a risk of re-thoracotomy for hemostasis. According to reports, the probability of re-thoracotomy for hemostasis after cardiac surgery is 2-4%, and the main cause of mediastinal bleeding is bleeding from the wire needle hole behind the sternum.
[0004] If there is a suture wire with a needle combined with the hemostatic function of a felt sheet, it will greatly reduce the risk of postoperative bleeding and secondary thoracotomy for hemostasis after cardiac surgery. Utility Model Content
[0005] The utility model aims to provide a sternal suture system with hemostasis effect, which is used to reduce the risk of postoperative bleeding and secondary thoracotomy for hemostasis after cardiac surgery.
[0006] The purpose of the utility model can be achieved through the following technical solutions:
[0007] A sternal suture system with hemostasis function, comprising
[0008] A first compression hemostatic patch and a second compression hemostatic patch;
[0009] The steel wire suture has steel wire needles at both ends, and passes through the first compression hemostatic sheet and the second compression hemostatic sheet respectively;
[0010] The braided suture is respectively inserted into the first compression hemostatic sheet and the second compression hemostatic sheet in a mattress-like manner, and a braided suture needle is provided at both ends.
[0011] The braided sutures on the first compression hemostatic sheet and the braided sutures on the second compression hemostatic sheet are respectively arranged on both outer sides of the steel wire sutures.
[0012] Furthermore, the first compression hemostatic sheet and the second compression hemostatic sheet are felt sheets.
[0013] Furthermore, the felt sheet is a polyethylene terephthalate fiber felt sheet.
[0014] Furthermore, the steel wire suture needle is a stainless steel suture needle.
[0015] Furthermore, the steel wire suture needle is a surgical curved needle.
[0016] Furthermore, the needle tip of the steel wire suture needle is in the shape of a triangular pyramid, and the cross-section of the needle body is circular.
[0017] Furthermore, the braided wire suture needle is a surgical curved needle.
[0018] Furthermore, the needle tip and the needle body cross-section of the braided thread suture needle are both circular.
[0019] Furthermore, the braided suture is a polypropylene braided suture.
[0020] Furthermore, the direction in which the steel wire suture passes through the first compression hemostatic sheet and the second compression hemostatic sheet is perpendicular to the mattress-like passing direction of the braided suture.
[0021] Compared with the prior art, the utility model has the following beneficial effects:
[0022] 1) Reliable hemostasis: Compared with the conventional 8-shaped suture with wire eye, the use of felt to stop bleeding avoids muscle cutting by sutures and increases the compression area. The felt itself has a certain local coagulation effect and can effectively deal with bleeding.
[0023] 2) Quick operation: The use of pre-installed sutures and sewing needles with thread saves the steps of making and sewing the felt sheets.
[0024] 3) Avoid additional damage: Since the braided suture needle uses a 1 / 4 arc, it is easier to penetrate thicker chest wall tissue, avoiding the additional damage caused by the 1 / 2 arc suture. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1It is a structural schematic diagram of a sternum suture system with hemostasis in an embodiment;
[0026] Figure 2 It is a schematic diagram of a sternal suture system in use with a hemostatic effect in the embodiment;
[0027] Description of the markings in the figure:
[0028] 1. Steel wire suture needle, 2. Felt sheet, 3. Steel wire suture, 4. Braided wire suture needle, 5. Braided suture, 6. Felt sheet, 7. Intercostal tissue, 8. Sternum. DETAILED DESCRIPTION
[0029] The following embodiments are implemented based on the above technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following embodiments.
[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0031] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0032] Example:
[0033] A sternal suture system with hemostatic effect, such as Figure 1 The system is composed of a steel wire suture 3 with steel wire suture needles 1 at both ends, a felt sheet 2 and a braided suture 5 with braided wire suture needles 4 at both ends.
[0034] The steel wire suture 3 is made of stainless steel and has an outer diameter of 1 mm.
[0035] The wire suture needle 1 has a length of 48 mm, an arc of 1 / 2c, a triangular pyramidal needle tip, and a circular cross section of the needle body.
[0036] The felt sheet 2 is made of polyethylene terephthalate fiber, rectangular, and has a size of 7mm*5mm. The inner part of the felt sheet 2 is unidirectionally penetrated by a steel wire suture 3, and the outer part of the felt sheet 2 is penetrated by a braided suture 4 in a mattress-like manner.
[0037] The material of the braided suture 5 is a copolymer of glycolide and lactide, an absorbable surgical suture with a thickness of 1-0.
[0038] The braided thread sewing needle 4 is 40 mm long, has a curvature of 1 / 4c, and a circular cross-section of the needle tip and needle body.
[0039] Working principle:
[0040] like Figure 2 As shown, when using this embodiment, the steel wire suture needle 1 on one side is first sutured from the inside of the mediastinum to the outside of the chest wall through the sternum 8 or the intercostal space 7, and then the braided wire suture needle 4 on the same side is respectively passed from the inside of the mediastinum to the outside of the chest wall through the intercostal space 7 outside the needle eye of the steel wire suture 3, and a knot is tied outside the chest to complete the compression and hemostasis outside the needle eye of the steel wire suture 3. The same operation is performed on the contralateral sternum 8, and the bilateral steel wire sutures 1 are tightened on the outside of the chest wall to complete the sternal closure, and at the same time, the compression and hemostasis of the inner side of the steel wire needle eye is completed.
[0041] This embodiment utilizes the felt sheet 2 in combination with the braided suture 5 to pass the steel suture 3 through the eye of the sternum 8 or the intercostal space 7 for planar compression, thereby increasing the contact area of compression and avoiding the suture from cutting the muscle.
[0042] The pressure of the felt sheet 2 is applied in a circumferential manner inside and outside the needle eye of the steel wire suture 3, and the inner side is tightened by the steel wire suture 3 and closely adheres to the sternum 8, while the outer side is tightened by the braided suture 5 through the chest wall and closely adheres to the sternum 8.
[0043] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.
Claims
1. A sternal suture system with hemostasis, characterized in that: include A first compression hemostatic patch and a second compression hemostatic patch; The steel wire suture (3) is provided with steel wire suture needles (1) at both ends, and passes through the first compression hemostatic sheet and the second compression hemostatic sheet respectively; The braided suture (5) is respectively inserted into the first compression hemostatic sheet and the second compression hemostatic sheet in a mattress-like manner, and a braided suture needle (4) is respectively provided at both ends. The braided suture (5) on the first compression hemostatic sheet and the braided suture (5) on the second compression hemostatic sheet are respectively arranged on both outer sides of the steel wire suture (3).
2. The sternal suture system with hemostasis according to claim 1, characterized in that: The first compression hemostatic sheet and the second compression hemostatic sheet are felt sheets (2).
3. The sternal suture system with hemostasis according to claim 2, characterized in that: The felt sheet (2) is a polyethylene terephthalate fiber felt sheet.
4. The sternal suture system with hemostasis according to claim 1, characterized in that: The steel wire suture needle (1) is a stainless steel suture needle.
5. The sternal suture system with hemostasis according to claim 1, characterized in that: The steel wire suture needle (1) is a surgical curved needle.
6. The sternal suture system with hemostasis according to claim 5, characterized in that: The needle tip of the steel wire suture needle (1) is in the shape of a triangular pyramid, and the cross section of the needle body is circular.
7. The sternal suture system with hemostasis according to claim 1, characterized in that: The braided thread suture needle (4) is a surgical curved needle.
8. The sternal suture system with hemostasis according to claim 7, characterized in that: The needle tip and the needle body cross-section of the braided thread sewing needle (4) are both circular.
9. The sternal suture system with hemostasis according to claim 1, characterized in that: The braided suture (5) is a polypropylene braided suture.
10. The sternal suture system with hemostasis according to claim 1, characterized in that: The direction in which the steel wire suture (3) passes through the first compression hemostatic sheet and the second compression hemostatic sheet is perpendicular to the mattress-like passing direction of the braided suture (5).