Heart connector

Abstract

The utility model provides a heart connector, and relates to the field of heart and great vessel surgery. The heart connector comprises a first cavity, a connector main cavity and a second cavity which are detachably connected in sequence, and inner cavities of the first cavity, the connector main cavity and the second cavity are communicated. The isolating mechanism extends into an inner cavity of the connector main cavity and is used for isolating the inner cavity of the connector main cavity, the ultrasonic probe pipe is communicated with the inner cavity of the connector main cavity, and the second cavity is provided with an injector exhaust pipe communicated with the inner cavity of the second cavity. The connector further comprises a sheath core which is connected with the first cavity, the connector main cavity and the second cavity in a sliding mode, and a guide wire channel penetrating through the sheath core is formed in the sheath core. Through the arrangement, the ventricular catheter can be guided by the guide wire and punctured into the ventricle from the apex heart along with the sheath core, and subsequent medical instruments can enter the ventricle through an inner cavity channel of the main cavity of the connector, so that wounds caused by operation thoracotomy, cardiac arrest and extracorporeal circulation assistance to a patient are reduced.

Description

Technical Field

[0001] The utility model relates to the field of cardiac and large blood vessel surgery, in particular to a cardiac connector. Background Art

[0002] After heart valve replacement surgery, patients may face complications, including but not limited to thrombosis, pannus hyperplasia, infection, bleeding, valvular dysfunction, arrhythmia, and heart failure. These complications may increase the patient's symptoms, such as dyspnea, chest pain, and palpitations, and in severe cases, may even be life-threatening.

[0003] Pannus and thrombus formation, both manifestations of the body's resistance to foreign implants, can occur in all types of prosthetic heart valves, particularly mechanical valves; all foreign bodies implanted in the circulatory system carry the risk of thrombosis. Both pannus and thrombus formation can lead to valvular dysfunction, such as stenosis or regurgitation, which can lead to heart failure or systemic embolic events; clinical manifestations can range from asymptomatic imaging findings to cardiogenic shock. The 10- and 20-year cumulative incidences of pannus are 0.3% and 5.0%, respectively, necessitating a significant number of patients requiring treatment.

[0004] While some thrombi can be treated with anticoagulation or thrombolysis, the majority of patients with thrombosis and pannus require invasive treatment, the vast majority of which require surgery. This surgery requires a second thoracotomy and extracorporeal circulation for cardiac arrest. Patients who require this second surgery are often elderly and frail, and the high surgical risks make both patients and physicians reluctant to undergo surgery, preventing these patients from receiving effective treatment.

[0005] In summary, there is an urgent need for a heart connector that can assist medical devices in entering the ventricle through a small incision at the apex of the heart, thereby reducing the trauma to patients caused by open-chest surgery and extracorporeal circulation. Utility Model Content

[0006] The cardiac connector provided by the present invention includes a first cavity, a connector main cavity and a second cavity which are detachably connected in sequence and have interconnected inner cavities; the connector main cavity is also provided with an isolation mechanism extending into the inner cavity of the connector main cavity and used to isolate the inner cavity of the connector main cavity and an ultrasound probe tube connected to the inner cavity of the connector main cavity, and the second cavity is provided with a syringe exhaust pipe connected to the inner cavity of the second cavity; and it also includes a sheath core which is slidably connected to the first cavity, the connector main cavity and the second cavity, and the sheath core is provided with a guidewire channel passing through the sheath core.

[0007] In one feasible embodiment, the isolation mechanism includes an isolation member disposed in the inner cavity of the main cavity of the connector and matching the size of the inner cavity of the main cavity of the connector, and a knob disposed at the top of the isolation member, passing through the main cavity of the connector and rotatably connected to the main cavity of the connector; the isolation member is provided with a first channel for communicating with the inner cavity of the main cavity of the connector.

[0008] In a feasible embodiment, the sheath core includes a sheath core body and a sheath core insertion portion connected to and communicated with the sheath core body, the sheath core insertion portion gradually converges in a direction away from the sheath core body but does not close, and the longitudinal cross-sectional area of ​​the sheath core insertion portion at its maximum point is the same as the longitudinal cross-sectional area of ​​the sheath core body.

[0009] In a feasible embodiment, the connector main cavity includes a connector main cavity transition portion and a connector main cavity operating portion connected and communicated with the connector main cavity transition portion, the first cavity is connected and communicated with the connector main cavity transition portion, and the second cavity is connected and communicated with the connector main cavity operating portion.

[0010] In one feasible embodiment, the transition portion of the connector main cavity gradually converges but does not close in the direction away from the connector main cavity operating portion, and the longitudinal cross-sectional area of ​​the maximum point of the transition portion of the connector main cavity is the same as the longitudinal cross-sectional area of ​​the maximum point of the connector main cavity operating portion.

[0011] In a feasible embodiment, a hemostatic valve is further provided on the end of the second cavity that is not connected to the main cavity of the connector.

[0012] In a feasible embodiment, the material of the second cavity is selected from any one of transparent plastic, transparent stainless steel or transparent glass.

[0013] In a feasible embodiment, a fixing ring for fixing the main cavity of the connector is further provided between the first cavity and the main cavity of the connector.

[0014] In a feasible embodiment, the invention further includes a flow regulating member disposed in the first channel and a plunger disposed at the top end of the flow regulating member and passing through a knob.

[0015] The cardiac connector provided by the present invention has the following beneficial effects:

[0016] 1) The present invention includes a first cavity, a connector main cavity, and a second cavity that are detachably connected in sequence and have interconnected inner cavities. The top of the connector main cavity is also provided with an isolation mechanism for isolating the inner cavity of the connector main cavity and an ultrasound probe tube that is connected to the inner cavity of the connector main cavity. The second cavity is provided with a syringe exhaust pipe that is connected to the inner cavity of the second cavity. It also includes a sheath core that is slidably connected to the first cavity, the connector main cavity, and the second cavity, and the sheath core is provided with a guidewire channel that passes through the sheath core. Through the above arrangement, the present invention can be guided by a guidewire and enter the ventricle from the apex of the heart through a puncture with the sheath core, and subsequent medical devices can enter the ventricle through the inner cavity of the connector main cavity, thereby reducing the trauma to the patient caused by thoracotomy, cardiac arrest, and extracorporeal circulation.

[0017] 2) The first channel of the isolation member in the present invention can be connected to the inner cavity of the main cavity of the connector, so that the sheath core and the medical device can pass through smoothly; when the medical device operation is completed and exits the inner cavity of the main cavity of the connector, the isolation member can isolate the inner cavity of the main cavity of the connector, thereby preventing blood from flowing out along the inner cavity of the main cavity of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 This is a cross-sectional view of the utility model when the first channel is opened.

[0020] Figure 3 This is a cross-sectional view of the utility model when the first channel is closed

[0021] Figure 4 This is a structural diagram of another embodiment of the present invention.

[0022] Figure 5 This is a cross-sectional view of the flow regulating member of the present invention when the first channel is closed.

[0023] Figure 6 It is a cross-sectional view of the plunger and flow regulating member of the utility model.

[0024] Reference numerals

[0025] First cavity 1

[0026] Connector main cavity 2

[0027] Connector main cavity transition part 21

[0028] Connector main cavity operating part 22

[0029] Ultrasonic probe tube 23

[0030] Injector exhaust pipe 24

[0031] Second cavity 3

[0032] Isolation Agency 4

[0033] Isolator 41

[0034] First channel 41.1

[0035] Knob 42

[0036] Sheath Core 5

[0037] Sheath core body 51

[0038] Sheath core insertion portion 52

[0039] Guidewire channel 53

[0040] Hemostatic valve 6

[0041] Fixed ring 7

[0042] Flow regulating piece 8

[0043] Plunger 9 DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "left side", "right side", "upper side", "lower side", "above", "below", etc. are based on the orientations or positional relationships 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 a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0046] In addition, in the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0047] The utility model provides a heart connector, see Figure 1 and Figure 2 , including a first cavity 1, a connector main cavity 2 and a second cavity 3 which are detachably connected in sequence and whose inner cavities are connected. The connector main cavity 2 is also provided with an isolation mechanism 4 extending into the inner cavity of the connector main cavity 2 and used to isolate the inner cavity of the connector main cavity 2, and an ultrasound probe tube 23 connected to the inner cavity of the connector main cavity 2, and the second cavity 3 is provided with a syringe exhaust pipe 24 connected to the inner cavity of the second cavity 3. It also includes a sheath core 5 that is slidably connected to the first cavity 1, the connector main cavity 2 and the second cavity 3, and the sheath core 5 is provided with a guidewire channel 53 that passes through the sheath core 5. As an illustration, the first cavity 1 and the connector main cavity 2 can be connected by threads, and the connector main cavity 2 and the second cavity 3 can also be connected by threads. When the present invention is in use, the isolation mechanism 4 is first closed to put the inner cavity of the connector main cavity 2 in a connected state, and then the present invention is placed into the ventricle from the apex of the heart, and then the sheath core 5 is pushed in along the direction of the second cavity 3->connector main cavity 2->first cavity 1 until the sheath core 5 is pushed out of the first cavity 1; after the sheath core 5 is pushed in, the guide wire is pushed into the ventricle through the sheath core 5 channel, and then the sheath core 5 is removed along the direction of the first cavity 1->connector main cavity 2->second cavity 3, and then the medical device is pushed into the ventricle along the guide wire and in the same direction as when the sheath core 5 was pushed in for operation; after the operation is completed, the medical device is removed, and then the isolation mechanism 4 is opened to isolate the inner cavity of the connector main cavity 2 to cut off the blood flow. As a supplementary explanation, the ultrasound probe tube 23 serves as a channel for the ultrasound probe, and is usually provided with a valve to prevent blood from flowing out of the ultrasound probe tube 23; the syringe exhaust tube 24 serves as a channel for discharging gas from the second cavity 3, and is usually provided with a valve to prevent blood from flowing out of the syringe exhaust tube 24. In addition, the ultrasound probe tube 23 is usually oriented toward the first cavity 1. Through the above-mentioned arrangement, the present invention can be guided by a guidewire and enter the ventricle from the apex of the heart along with the sheath core 5, and subsequent medical devices can enter the ventricle through the inner cavity of the connector main cavity 2, thereby reducing the trauma to the patient caused by thoracotomy, cardiac arrest and extracorporeal circulation.

[0048] In the cardiac connector provided by the present invention, refer to Figure 2The isolation mechanism 4 includes an isolation member 41 disposed in the inner cavity of the connector main cavity 2 and a knob 42 disposed at the top of the isolation member 41, passing through the connector main cavity 2 and rotatably connected to the connector main cavity 2; the isolation member 41 is provided with a first channel 41.1 for communicating with the inner cavity of the connector main cavity 2. As an illustration, the knob 42 and the isolation member 41 are generally integrally formed. When the knob 42 is rotated, the isolation member 41 rotates synchronously in the inner cavity of the connector main cavity 2; when the inner cavity of the connector main cavity 2 is to be isolated, the knob 42 is rotated to rotate the first channel 41.1 in the isolation member 41 to a position aligned with the inner wall of the connector main cavity 2. Please refer to Figure 3 When you want to cancel the isolation of the inner cavity of the main cavity 2 of the connector, rotate the knob 42 so that the first channel 41.1 in the isolation member 41 is connected to the inner cavity of the main cavity 2 of the connector, see Figure 2 In one embodiment, the main body of the isolator 41 is spherical, and the portion of the connector's main cavity 2 corresponding to the main body of the isolator 41 is a hollow sphere, allowing the operator to rotate the isolator 41 within the connector's main cavity 2 by turning the knob 42, thereby opening or closing the first channel 41.1 in the isolator 41. With this arrangement, when the medical device is operated and exits the connector's main cavity 2, the isolator 41 can isolate the connector's main cavity 2, thereby preventing blood from flowing out of the connector's main cavity 2.

[0049] In the cardiac connector provided by the present invention, refer to Figure 1 The connector main cavity 2 includes a connector main cavity transition portion 21 and a connector main cavity operating portion 22 connected to and in communication with the connector main cavity transition portion 21. The first cavity 1 is connected to and in communication with the connector main cavity transition portion 21, and the second cavity 3 is connected to and in communication with the connector main cavity operating portion 22. Furthermore, the connector main cavity transition portion 21 gradually converges in a direction away from the connector main cavity operating portion 22 but does not close. The longitudinal cross-sectional area of ​​the connector main cavity operating portion 22 is the same as the cross-sectional area of ​​the largest part of the connector main cavity transition portion 21. As an illustration, the isolation member 41 is provided in the inner cavity of the connector main cavity operating portion 22, and the ultrasonic probe tube 23 is in communication with the inner cavity of the connector main cavity operating portion 22.

[0050] In the cardiac connector provided by the present invention, refer to Figure 1 The sheath core 5 includes a sheath core body 51 and a sheath core insertion portion 52 connected to and in communication with the sheath core body 51. The sheath core insertion portion 52 gradually converges in a direction away from the sheath core body 51 but does not close. As an illustration, the sheath core insertion portion 52 helps the sheath core 5 enter the ventricle from the apex of the heart.

[0051] In the cardiac connector provided by the present invention, refer to Figure 4 and Figure 5 , further comprising a flow regulating member 8 disposed in the first channel 41.1 and a plunger 9 disposed at the top of the flow regulating member 8 and passing through the knob 42. For illustration, see Figure 5 and Figure 6 Generally speaking, the flow regulating member 8 is a solid member. When the first channel 41.1 is to be closed, in addition to rotating the knob 42, the plunger 9 can also be directly pushed down until the flow regulating member 8 completely closes the first channel 41.1. In addition, in other feasible solutions, see Figure 6 The flow regulating member 8 includes four blades arranged in a cross shape, wherein one group of two parallel blades is provided with a relatively sparse grid, and the other group of parallel blades is provided with a relatively dense grid; at this time, if the flow in the first channel 41.1 is to be initially slowed down, the two blades with the relatively sparse grid in the flow regulating member 8 are rotated to align with the extension direction of the first channel 41.1; if the flow in the first channel 41.1 is to be further slowed down, the two blades with the relatively dense grid in the flow regulating member 8 are rotated to align with the extension direction of the first channel 41.1.

[0052] In the cardiac connector provided by the present invention, refer to Figure 1 A commonly used hemostatic valve 6 is also provided on the end of the second cavity 3 that is not connected to the main cavity 2 of the connector. The hemostatic valve 6 can prevent bleeding.

[0053] In the cardiac connector provided by the present invention, refer to Figure 1 A fixing ring 7 for fixing the connector main cavity 2 is also provided between the first cavity 1 and the connector main cavity 2. The fixing ring 7 can be fixed on the operating table through an external bracket to ensure the relative fixation of the connector main cavity 2.

[0054] In the cardiac connector provided by the present invention, the material of the second cavity 3 is selected from any one of transparent plastic, transparent stainless steel or transparent glass, which facilitates the operator to observe the blood status in the second cavity 3 in real time.

[0055] The present invention also provides a method for using a cardiac connector, which includes at least the following steps:

[0056] 1) Place the cardiac connector into the ventricle from the apex of the heart, and then push the sheath core 5 along the direction of the second cavity 3 -> connector main cavity 2 -> first cavity 1 until the sheath core insertion part 52 is pushed out of the first cavity 1.

[0057] 2) After the sheath core 5 is pushed in, the guide wire is pushed into the ventricle through the sheath core 5 channel, and then the sheath core 5 is removed along the direction of the first cavity 1->connector main cavity 2->second cavity 3, and then the air in the first cavity 1, the connector main cavity 2 and the second cavity 3 is extracted through the syringe exhaust tube 24, and then the medical device is passed through the guide wire and pushed into the ventricle in the same direction as when the sheath core 5 was pushed in for operation, and at the same time, the ultrasound probe is pushed into the connector main cavity 2 through the ultrasound probe tube 23.

[0058] 3) After the operation is completed, the medical device is removed, and then the knob 42 is rotated to align the first channel 41.1 in the isolation member 41 with the inner wall of the connector main cavity 2 to isolate the inner cavity of the connector main cavity 2 to cut off blood flow.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A cardiac connector, characterized in that: The invention comprises a first cavity (1), a connector main cavity (2) and a second cavity (3) which are detachably connected in sequence and whose inner cavities are connected; the connector main cavity (2) is further provided with an isolation mechanism (4) extending into the inner cavity of the connector main cavity (2) and used to isolate the inner cavity of the connector main cavity (2) and an ultrasonic probe tube (23) connected to the inner cavity of the connector main cavity (2); the second cavity (3) is provided with a syringe exhaust pipe (24) connected to the inner cavity of the second cavity (3); It also includes a sheath core (5) that is slidably connected to the first cavity (1), the connector main cavity (2) and the second cavity (3), and a guide wire channel (53) that passes through the sheath core (5) is provided in the sheath core (5).

2. The cardiac connector according to claim 1, wherein: The isolation mechanism (4) comprises an isolation member (41) disposed in the inner cavity of the connector main cavity (2) and matching the inner cavity size of the connector main cavity (2), and a knob (42) disposed at the top end of the isolation member (41), passing through the connector main cavity (2) and rotatably connected to the connector main cavity (2); the isolation member (41) is provided with a first channel (41.1) for communicating with the inner cavity of the connector main cavity (2).

3. The cardiac connector according to claim 1, wherein: The sheath core (5) comprises a sheath core body (51) and a sheath core piercing portion (52) connected to and in communication with the sheath core body (51); the sheath core piercing portion (52) gradually converges in a direction away from the sheath core body (51) but does not close; and the longitudinal cross-sectional area of ​​the sheath core piercing portion (52) at its maximum point is the same as the longitudinal cross-sectional area of ​​the sheath core body (51).

4. The cardiac connector according to claim 1 or 2, wherein: The connector main cavity (2) comprises a connector main cavity transition portion (21) and a connector main cavity operating portion (22) connected to and in communication with the connector main cavity transition portion (21); the first cavity (1) is connected to and in communication with the connector main cavity transition portion (21); and the second cavity (3) is connected to and in communication with the connector main cavity operating portion (22).

5. The cardiac connector according to claim 4, wherein: The connector main cavity transition portion (21) gradually converges in a direction away from the connector main cavity operating portion (22) but does not close, and the longitudinal cross-sectional area at the maximum point of the connector main cavity transition portion (21) is the same as the longitudinal cross-sectional area at the maximum point of the connector main cavity operating portion (22).

6. The cardiac connector according to claim 1, wherein: A hemostatic valve (6) is also provided on the end of the second cavity (3) that is not connected to the connector main cavity (2).

7. The cardiac connector according to claim 1, wherein: The material of the second cavity (3) is selected from any one of transparent plastic, transparent stainless steel or transparent glass.

8. The cardiac connector according to claim 1, wherein: A fixing ring (7) for fixing the connector main cavity (2) is also provided between the first cavity (1) and the connector main cavity (2).

9. The cardiac connector according to claim 2, wherein: It also includes a flow regulating member (8) arranged in the first channel (41.1) and a plunger (9) arranged at the top end of the flow regulating member (8) and passing through the knob (42).

10. The cardiac connector according to claim 9, wherein: The flow regulating member (8) is in a grid shape.

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