A deployable cardiac hemostasis device

Abstract

The present invention discloses an expandable cardiac hemostasis device, which belongs to the field of cardiac surgery. It includes a vascular stopper, a push rod arranged in the vascular stopper and movably connected to the vascular stopper, an expansion groove arranged at the bottom end of the vascular stopper and coaxially arranged therewith, a push cylinder sleeved at the bottom end of the push rod and slidably connected therewith, a hemostatic umbrella arranged at the bottom side of the push rod, and an umbrella frame arranged in the hemostatic umbrella and hinged to the hemostatic umbrella and the push cylinder respectively; the diameter of the push cylinder is between the diameter of the vascular stopper and the diameter of the expansion groove, and a first slide rail is arranged on the outside of the push cylinder along its axial direction, a first slider corresponding to the first slide rail is arranged on the inside of the expansion groove, and an umbrella retracting rail perpendicular to the first slide rail is arranged on the outside of the push cylinder along its circumferential direction, and the umbrella retracting rail is arranged on the side of the bottom end of the first slide rail and connected to the first slide rail. After the wound on the surface of the patient's heart is opened, the hemostatic umbrella in the present invention can be more tightly pressed and fitted to the inner wall of the wound, thereby improving the blocking and hemostasis effect on the wound on the surface of the patient's heart.

Description

Technical Field

[0001] The invention relates to the field of cardiac surgery, and in particular to an expandable cardiac hemostasis device. Background Art

[0002] A large category of heart diseases manifests itself as various "defects" or "leaks" inside the heart, including ventricular septal defects, which account for as much as 20% of all congenital heart diseases, and paravalvular leaks that occur after aortic valve or mitral valve replacement surgery. The most innovative method for treating this type of disease is to puncture the skin surface of the chest directly, and then use image guidance to further puncture the ventricle and enter the heart to complete the occlusion treatment. However, the biggest challenge faced in this way is that after the internal occlusion of the heart is completed and the catheter is withdrawn, a wound will be generated on the surface of the ventricle and bleeding needs to be stopped. Since there is only a small wound on the surface of the heart with a diameter of several millimeters, it is difficult for surgeons to close the wound left on the surface of the ventricle by conventional direct vision suturing methods. This requires a closure device that can be used to occlude and stop bleeding specifically for this wound under minimally invasive conditions.

[0003] At the same time, doctors often need to temporarily stop bleeding at the heart of patients during cardiac surgery. Existing hemostatic forceps simply stop bleeding, and the hemostatic forceps cannot be fixed, resulting in poor hemostatic effect, and the hemostatic pressure cannot be accurately controlled, and thus the problem of temporary hemostasis cannot be performed normally for cardiac surgery. Therefore, it is necessary to conduct further research on the basis of existing cardiac surgery to provide a new cardiac hemostatic device. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention proposes a deployable cardiac hemostasis device, and the specific technical solution is as follows:

[0005] A deployable cardiac hemostasis device comprises a hemostasis vessel, a push rod disposed in the hemostasis vessel and movably connected to the hemostasis vessel, an expansion groove disposed at the bottom end of the hemostasis vessel and coaxially arranged therewith, a push tube sleeved at the bottom end of the push rod and slidably connected therewith, a hemostatic umbrella disposed at the bottom side of the push rod, and an umbrella frame disposed in the hemostatic umbrella and hinged to the hemostatic umbrella and the push tube respectively;

[0006] The diameter of the push cylinder is between the diameter of the stop blood vessel and the diameter of the expansion groove, and a first slide rail is provided on the outer side of the push cylinder along its axial direction, a first slider corresponding to the first slide rail is provided on the inner side of the expansion groove, and an umbrella retracting rail perpendicular to the first slide rail is provided on the outer side of the push cylinder along its circumferential direction, the umbrella retracting rail is arranged on the bottom end side of the first slide rail and is connected to the first slide rail.

[0007] Preferably, a second slide rail is provided on the inner side of the push cylinder and between the push cylinder and the push rod, and a second sliding block corresponding to the second slide rail is provided on the outer side of the push rod.

[0008] Preferably, a hemostatic ring is provided on the edge of the inner umbrella surface of the hemostatic umbrella.

[0009] Preferably, the outer diameter of the push tube is the same as the diameter of the expansion groove, and a sealing ring is sleeved at the top of the push tube and between the push tube and the wall of the expansion groove.

[0010] Preferably, the umbrella frame includes a plurality of first ribs arranged on the inner umbrella surface of the hemostatic umbrella and second ribs arranged between the first ribs and the push tube, and two ends of the second ribs are respectively hinged to the first ribs and the push tube.

[0011] Preferably, the first ribs are fitted with the hemostatic parasol and are evenly distributed on the inner surface of the hemostatic parasol.

[0012] Preferably, a hemostatic plug is sleeved outside the vascular stagnation tube and is slidably connected thereto, and the diameter of the hemostatic plug gradually increases in a direction away from the hemostatic umbrella.

[0013] Preferably, an umbrella opening mark and an umbrella closing mark are respectively provided on the top of the push rod.

[0014] Preferably, a handle is provided at the top of the push rod.

[0015] Preferably, the material used for the hemostatic umbrella is a polymer medical film.

[0016] The present invention has the following beneficial effects:

[0017] The present invention allows one end of the vascular stopper with a hemostatic umbrella to pass through the patient's heart wound, and the vascular stopper is clamped at the heart wound to initially block and stop bleeding the patient's heart wound. Then the operator pulls the push rod set in the vascular stopper toward the outside of the vascular stopper, and during the movement of the push rod, the hemostatic umbrella at the bottom of the push rod and in a closed state and the push cylinder connected to the hemostatic umbrella move toward the bottom of the expansion groove. Until the top of the push cylinder contacts the bottom of the expansion groove and stops moving, the push rod and the hemostatic umbrella continue to move toward the bottom of the expansion groove, and the hemostatic umbrella is gradually opened by the structure of the umbrella frame hinged to the hemostatic umbrella and the push cylinder, until the first slider slides to the bottom of the first slide rail, thereby keeping the hemostatic umbrella in an open state. Then the operator pulls the vascular stopper toward the outside of the patient's heart wound, so that the hemostatic umbrella blocks the patient's heart wound, thereby achieving the purpose of hemostasis.

[0018] When the operator needs to take the present invention out of the patient's heart wound, the operator only needs to rotate the push rod to slide the first slider from the first slide rail to the umbrella rail, thereby fixing the positions of the push tube and the vascular stop relatively. Then, the push rod is pushed toward the bottom of the vascular stop, and the hemostatic umbrella is gradually converted from the open state to the closed state through the hinged structure of the umbrella frame, and then the present invention is taken out of the patient's heart wound and the heart wound is sutured. After the wound on the surface of the patient's heart is opened, the hemostatic umbrella in the present invention can be squeezed and fitted more tightly to the inner wall of the wound, thereby improving the blocking and hemostasis effect on the wound on the surface of the patient's ventricle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0021] Figure 3 It is a schematic diagram of the structure of the hemostatic umbrella in the present invention when it is in an open state;

[0022] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0023] Figure 5 for Figure 3 A partial enlarged view of point C in the middle. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0025] Example

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0028] In the description of the present invention, it should be noted that the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "connected", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0031] See also Figures 1 to 5 The present invention comprises a vascular stopper 1 installed at a patient's heart wound, a push rod 2 arranged in the vascular stopper 1 and slidably connected to the vascular stopper 1, an expansion groove 3 arranged at the bottom end of the vascular stopper 1 and coaxially arranged with the vascular stopper 1, a push tube 4 sleeved at the bottom end of the push rod 2 and slidably connected to the push rod 2, a hemostatic umbrella 5 arranged at the bottom side of the push rod 2 and used to block the heart wound, and an umbrella frame 6 arranged in the hemostatic umbrella 5 and hinged to the hemostatic umbrella 5 and the push tube 4 respectively. A hemostatic plug 11 slidably connected to the vascular stopper 1 is sleeved on the outside of the vascular stopper 1, and the diameter of the hemostatic plug 11 gradually increases in the direction away from the hemostatic umbrella 5. When the vascular stopper 1 is clamped at the heart wound and the patient's heart wound is initially blocked and hemostatic, the operator pushes the hemostatic plug 11 between the vascular stopper 1 and the heart wound, further improving the sealing body between the vascular stopper 1 and the heart wound, and improving the hemostatic effect of the present invention.

[0032] See also Figure 1 to Figure 2 The umbrella frame 6 includes a plurality of first umbrella ribs 61 arranged on the inner umbrella surface of the hemostatic umbrella 5 and a second umbrella rib 62 arranged between the first umbrella rib 61 and the push tube 4. The two ends of the second umbrella rib 62 are respectively hinged to the first umbrella rib 61 and the push tube 4. The first umbrella rib 61 fits the hemostatic umbrella 5 and the first umbrella rib 61 is evenly distributed on the inner umbrella surface of the hemostatic umbrella 5. The materials used for the hemostatic blood vessel 1, the push rod 2, the push tube 4 and the umbrella frame 6 are all medical stainless steel, so that the present invention can maintain a considerable hardness during use, is not easy to deform and break during use, and meets the medical industry standards.

[0033] See also Figure 2 to Figure 3The diameter of the push tube 4 is between the diameter of the stop blood vessel 1 and the diameter of the deployment groove 3, and a first slide rail 7 is provided on the outside of the push tube 4 along its axial direction, a first slider 71 corresponding to the first slide rail 7 is provided on the inside of the deployment groove 3, and a retracting rail 72 perpendicular to the first slide rail 7 is provided on the outside of the push tube 4 along its circumferential direction. The first slider 71 is in a square shape, and the retracting rail 72 is arranged on the side of the bottom end of the first slide rail 7 and is connected to the first slide rail 7. A second slide rail 8 is provided on the inside of the push tube 4 and between the push tube 4 and the push rod 2, and a second slider 81 corresponding to the second slide rail 8 is provided on the outside of the push rod 2, and the second slider 81 is in a strip shape. The present invention provides a second slide rail 8 provided on the inside of the push tube 4 and between the push tube 4 and the push rod 2, and a second slider 81 provided on the outside of the push rod 2 and corresponding to the second slide rail 8, so that when the operator rotates the push rod 2, the push tube 4 can rotate with the push rod 2.

[0034] See also Figures 3 to 5 In the present invention, one end of the vascular stopper 1 provided with the hemostatic umbrella 5 is passed through the patient's heart wound, and the vascular stopper 1 is clamped at the heart wound to initially block and stop bleeding the patient's heart wound. Then the operator pulls the push rod 2 set in the vascular stopper 1 toward the outside of the vascular stopper 1, and during the movement of the push rod 2, the hemostatic umbrella 5 at the bottom of the push rod 2 and the push cylinder 4 connected to the hemostatic umbrella 5 are driven to move toward the bottom of the expansion groove 3. Until the top of the push cylinder 4 contacts the bottom of the expansion groove 3 and stops moving, the push rod 2 and the hemostatic umbrella 5 continue to move toward the bottom of the expansion groove 3, and the hemostatic umbrella 5 is gradually opened by the structure of the umbrella frame 6 hinged to the hemostatic umbrella 5 and the push cylinder 4, until the first slider 71 slides to the bottom of the first slide rail 7, thereby keeping the hemostatic umbrella 5 in the open state. Then the operator pulls the vascular stopper 1 toward the outside of the patient's heart wound, so that the hemostatic umbrella 5 blocks the patient's heart wound, thereby achieving the purpose of hemostasis.

[0035] When the operator needs to take the present invention out of the patient's heart wound, the operator only needs to rotate the push rod 2 to make the first slider 71 slide from the first slide rail 7 to the umbrella rail 72, thereby making the positions of the push tube 4 and the vascular stop 1 relatively fixed. Then push the push rod 2 toward the bottom end of the vascular stop 1, and gradually convert the hemostatic umbrella 5 from the open state to the closed state through the hinged structure of the umbrella frame 6, and then take the present invention out of the patient's heart wound and suture the heart wound. The outer diameter of the push tube 4 is the same as the diameter of the expansion groove 3, so that the push tube 4 can fit closely with the expansion groove 3 when sliding along the expansion groove 3, preventing the blood in the patient's heart from flowing out from the gap between the push tube 4 and the expansion groove 3. At the same time, a sealing ring 41 is sleeved on the top of the push tube 4 and between the push tube 4 and the groove wall of the expansion groove 3, further improving the sealing between the push tube 4 and the expansion groove 3, and ensuring the hemostatic effect of the present invention during use.

[0036] See also Figures 3 to 5, the top of the push rod 2 is respectively provided with an umbrella opening mark 9 and an umbrella closing mark 10. When the hemostatic umbrella 5 is fully opened, the umbrella opening mark 9 at the top of the push rod 2 is flush with the top side of the vascular stenosis 1; when the hemostatic umbrella 5 is fully closed, the umbrella closing mark 10 at the top of the push rod 2 is flush with the top side of the vascular stenosis 1. Thus, the operator can grasp the use status of the intracardiac hemostatic umbrella 5 at any time, which improves the practicality and convenience of the present invention. At the same time, the top of the push rod 2 is also provided with a handle 21 for the operator to move the push rod 2. The material used by the hemostatic umbrella 5 is a polymer medical film, and the inner umbrella edge of the hemostatic umbrella 5 is provided with a hemostatic ring 51. The material used by the hemostatic ring 51 is a medical grade elastic plastic, which ensures the hygiene of the hemostatic umbrella 5 and the hemostatic ring 51 during use, and meets the medical industry standards. After the wound on the surface of the patient's ventricle is opened, the hemostatic umbrella 5 in the present invention can be squeezed and fitted more tightly to the inner wall of the wound, thereby improving the blocking and hemostatic effect of the wound on the surface of the patient's ventricle.

[0037] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of more restrictions, the elements defined by the sentence "includes..." do not exclude the existence of other identical elements in the article or device including the elements.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A deployable cardiac hemostasis device, characterized in that: It comprises a blood vessel (1), a push rod (2) arranged in the blood vessel (1) and movably connected to the blood vessel (1), an expansion groove (3) arranged at the bottom end of the blood vessel (1) and coaxially arranged therewith, a push tube (4) sleeved on the bottom end of the push rod (2) and slidably connected therewith, a hemostatic umbrella (5) arranged at the bottom side of the push rod (2), and an umbrella frame (6) arranged in the hemostatic umbrella (5) and hinged to the hemostatic umbrella (5) and the push tube (4) respectively; The diameter of the push cylinder (4) is between the diameter of the stop blood vessel (1) and the diameter of the deployment groove (3), and a first slide rail (7) is provided on the outer side of the push cylinder (4) along its axial direction, a first sliding block (71) corresponding to the first slide rail (7) is provided on the inner side of the deployment groove (3), and a retracting rail (72) perpendicular to the first slide rail (7) is provided on the outer side of the push cylinder (4) along its circumferential direction, the retracting rail (72) is arranged on the side of the bottom end of the first slide rail (7) and is connected to the first slide rail (7). A second slide rail (8) is provided inside the push tube (4) and between the push tube (4) and the push rod (2); a second slide block (81) corresponding to the second slide rail (8) is provided outside the push rod (2); the umbrella frame (6) comprises a plurality of first ribs (61) arranged on the inner umbrella surface of the hemostatic umbrella (5) and second ribs (62) arranged between the first ribs (61) and the push tube (4); two ends of the second rib (62) are respectively hinged to the first ribs (61) and the push tube (4); The outer side of the blood stopper (1) is provided with a hemostatic plug (11) which is slidably connected thereto, and the diameter of the hemostatic plug (11) gradually increases in a direction away from the hemostatic umbrella (5).

2. The expandable cardiac hemostasis device according to claim 1, characterized in that: A hemostatic ring (51) is provided at the edge of the inner umbrella surface of the hemostatic umbrella (5).

3. The expandable cardiac hemostasis device according to claim 1, characterized in that: The outer diameter of the push cylinder (4) is the same as the diameter of the expansion groove (3), and a sealing ring (41) is sleeved at the top end of the push cylinder (4) and between the push cylinder (4) and the groove wall of the expansion groove (3).

4. The expandable cardiac hemostasis device according to claim 1, characterized in that: The first ribs (61) are fitted to the hemostatic umbrella (5) and the first ribs (61) are evenly distributed on the inner umbrella surface of the hemostatic umbrella (5).

5. The expandable cardiac hemostasis device according to claim 1, characterized in that: The top end of the push rod (2) is respectively provided with an umbrella opening mark (9) and an umbrella closing mark (10).

6. The expandable cardiac hemostasis device according to claim 1, characterized in that: A handle (21) is provided at the top end of the push rod (2).

7. The expandable cardiac hemostatic device according to claim 1, characterized in that: The material used for the hemostatic umbrella (5) is a polymer medical film.

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