CN202892007U - Stopper intervening transport device - Google Patents

Abstract

The utility model provides an interventional delivery device for an occluder, which comprises a delivery sheath, an expansion sheath, a loading sheath and a push rod. The delivery sheath includes a delivery sheath tube seat (1), a hemostatic valve (2), an extension tube (3), a single handle tee (4) and a delivery sheath tube (5); one end of the delivery sheath tube seat (1) It is detachably connected to the hemostatic valve (2), and the other end is connected to the delivery sheath (5); one end of the extension tube (3) is connected to the hemostatic valve (2), and the other end is connected to the single handle tee (4). The occluder intervention delivery device of the utility model can make the occluder transport smoothly, improve the success rate of the occluder intervention operation, and because the delivery sheath has a built-in hemostatic valve, the device has a simple structure, low cost, easy operation and hemostasis The effect is good.

Description

An occluder intervention delivery device

technical field

The utility model relates to the field of medical instruments, in particular to an interventional delivery device for an occluder.

Background technique

In the closure of atrioventricular defects, it is necessary to deliver the occluder to the patient's position safely, smoothly and quickly. During the operation, it is necessary to avoid blood loss, ensure smooth delivery of the occluder, and require the delivery device to be simple in structure and easy to operate, thereby saving operation time.

Currently, the occluder interventional delivery device commonly used in clinic generally needs to use a separate hemostatic valve, and the structure of this occluder interventional delivery device is complicated and inconvenient to operate.

Utility model content

(1) Technical problems to be solved

The purpose of the utility model is to provide an occluder intervention delivery device with simple structure, good hemostasis effect, easy operation and smooth delivery.

(2) Technical solutions

In order to solve the above technical problems, the utility model provides an interventional delivery device for an occluder, which includes a delivery sheath, an expansion sheath, a loading sheath and a push rod, wherein the delivery sheath includes a delivery sheath tube seat, a hemostatic valve, an extension tube, A single-handle tee and a delivery sheath; one end of the delivery sheath seat is detachably connected to the hemostatic valve, and the other end is connected to the delivery sheath; one end of the extension tube is connected to the hemostatic valve, and the other end is connected to the single-handle tee.

Wherein, the delivery sheath is provided with a scale.

Further, the end of the delivery sheath away from the hemostatic valve is a tapered tip.

Wherein, the delivery sheath seat and the hemostatic valve are connected by threads; one end of the delivery sheath is pressed between the delivery sheath seat and the hemostatic valve.

Wherein, the dilation sheath includes a dilation sheath seat and a dilation sheath; the end of the dilation sheath away from the dilation sheath seat is a tapered tip.

Further, one end of the expansion sheath seat has a 6% standard Luer connector, and the other end is fixedly connected to the expansion sheath, and this end has an external thread, which is locked with the internal thread of the hemostasis valve.

Further, both the delivery sheath and dilation sheath are added with imaging material.

Wherein, the loading sheath includes a loading sheath seat and a loading sheath; one end of the loading sheath seat has a 6% standard Luer connector, and the other end is fixedly connected to the loading sheath.

Further, the loading sheath is made of a transparent material with a low coefficient of friction.

Wherein, the push rod includes a handle and a steel wire, and the steel wire is inserted into the handle and fastened by screws.

(3) Beneficial effects

The occluder intervention delivery device of the utility model can make the occluder transport smoothly and improve the success rate of the occluder operation. Because the delivery sheath has a built-in hemostatic valve, the device has simple structure, low cost, easy operation and good hemostatic effect. good.

Description of drawings

Fig. 1 is a schematic structural diagram of the delivery sheath of the occluder interventional delivery device of the present invention.

Fig. 2 is a schematic structural diagram of the expansion sheath of the occluder intervention delivery device of the present invention.

Fig. 3 is a schematic structural diagram of the loading sheath of the occluder intervention delivery device of the present invention.

Fig. 4 is a schematic structural diagram of the push rod of the occluder intervention delivery device of the present invention.

In the figure, 1: delivery sheath seat; 2: hemostasis valve; 3: extension tube; 4: single-handle tee; 5: delivery sheath; 6: expansion sheath seat; 7: expansion sheath; 8: loading sheath Tube base; 9: loading sheath; 10: screw; 11: handle; 12: steel wire.

Detailed ways

The specific implementation of the occluder intervention delivery device of the present invention will be further described in detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the utility model, but not to limit the utility model.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplified descriptions, 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 should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

The occluder intervention delivery device provided by the utility model includes a delivery sheath, an expansion sheath, a loading sheath and a push rod. Figure 1 shows the delivery sheath, Figure 2 shows the expansion sheath, Figure 3 shows the loading sheath, and Figure 4 Push lever shown.

As shown in Figure 1, the delivery sheath includes a delivery sheath seat 1, a hemostatic valve 2, an extension tube 3, a single handle tee 4 and a delivery sheath 5; the delivery sheath 5 is a tubular structure with scale marks, and the delivery sheath The scale mark on the tube 5 is convenient for the doctor to observe the intervention depth. The end of the delivery sheath tube 5 away from the hemostatic valve 2 is a tapered tip. The tapered tip is shorter in length and has a higher tear resistance, which is convenient for the retraction of the occluder; One end of the extension tube 3 is connected to the hemostatic valve 2, and the other end is connected to the single-handle tee 4; one end of the hemostatic valve 2 connected to the delivery sheath holder 1 has an external thread, and the other end has an internal thread, and there is a Hemostatic silicone pad, so it has a good hemostatic effect; the delivery sheath holder 1 has an internal thread, one end of which is integrally connected with the hemostasis valve 2 through threads, and the other end is connected with the delivery sheath 5, and the delivery sheath 5 One end is buckled between the hemostatic valve 2 and the delivery sheath tube seat 1, which not only simplifies the structure of the delivery device, but also makes the operation easier. The delivery of the plug is smoother.

As shown in Figure 2, the expansion sheath includes an expansion sheath seat 6 and an expansion sheath tube 7. One end of the expansion sheath seat 6 has a 6% standard Luer connector, which is convenient for connecting with other instruments, such as syringes, etc., and the other end is connected to the expansion sheath. The sheath tube 7 is fixedly connected, and this end has an external thread, which can be locked with the internal thread of the hemostasis valve 2. The expansion sheath 7 is a long and thin tubular structure, and the end away from the expansion sheath seat 6 is a tapered tip, which facilitates the intervention of the delivery sheath and the expansion sheath.

The threaded connection between the above-mentioned components is only a preferred way to achieve convenient disassembly, and is not a limitation of the present invention. Other connection methods that can achieve a detachable effect all fall within the protection scope of the present invention.

As shown in Figure 3, the loading sheath includes a loading sheath seat 8 and a loading sheath tube 9. One end of the loading sheath seat 8 has a 6% standard Luer connector, which is convenient for connecting with other instruments, such as syringes, etc., and the other end is connected to the loading sheath. The sheath tube 9 is fixedly connected.

As shown in FIG. 4 , the push rod includes a handle 11 and a steel wire 12 , the handle 11 is cylindrical and has anti-skid lines, and the steel wire 12 is inserted into the handle 11 and fastened by a screw 10 .

In order to facilitate intervention during the operation, the delivery sheath 5 and the expansion sheath 7 can be bent at different angles at different positions according to clinical requirements. Both the delivery sheath 5 and the expansion sheath 7 are added with developing material to provide the developing effect of the tube; the loading sheath 9 is made of a transparent material with a low friction coefficient, which is easy to load the occluder, behind the device for easy observation.

The use process of the occluder intervention delivery device of the present utility model is: according to clinical requirements, a small incision is made at a suitable position in front of the chest to expose the surface of the target atrium or ventricle. After determining the puncture position, use the puncture needle to puncture the atrium or ventricle, then insert the guide wire, pass the guide wire through the atrioventricular defect, and withdraw the puncture needle. Insert the expansion sheath into the delivery sheath, that is, the expansion sheath tube 7 of the expansion sheath passes through the hemostatic valve 2 and the delivery sheath tube seat 1 of the delivery sheath, and inserts the delivery sheath tube 5, and the expansion sheath tube seat 6 of the expansion sheath and the hemostasis of the delivery sheath Valve 2 is locked by thread. Then, one end outside the guide wire is inserted into the tip of the dilation sheath 7, along the guide wire, push the dilation sheath and the delivery sheath until the tip of the delivery sheath 5 reaches the desired position, rotate and loosen the joint between the dilation sheath and the delivery sheath , slowly withdraw the expansion sheath. Use the push rod to fold the occluder into the loading sheath, and then insert the loading sheath into the delivery sheath from the hemostatic valve 2 position to realize the docking of the loading sheath and the delivery sheath, push the occluder, place, deploy and retract the occluder until Ideally positioned to slowly withdraw the delivery sheath after the procedure is complete.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and replacements can also be made. And replacement should also be regarded as the protection scope of the present utility model.

Claims (10)

1. An interventional delivery device for an occluder, characterized in that the device includes a delivery sheath, an expansion sheath, a loading sheath and a push rod, wherein the delivery sheath includes a delivery sheath tube seat (1), a hemostatic valve (2), an extension Tube (3), single-handle tee (4) and delivery sheath (5); one end of the delivery sheath seat (1) is detachably connected to the hemostatic valve (2), and the other end is connected to the delivery sheath (5) ; One end of the extension tube (3) is connected to the hemostatic valve (2), and the other end is connected to the single handle tee (4). 2. The interventional delivery device for occluder according to claim 1, characterized in that, the delivery sheath (5) is provided with a scale. 3. The occluder intervention delivery device according to claim 1 or 2, characterized in that the end of the delivery sheath (5) away from the hemostatic valve (2) is a tapered tip. 4. The interventional delivery device for occluder according to claim 1, characterized in that, the delivery sheath seat (1) and the hemostasis valve (2) are threadedly connected; one end of the delivery sheath (5) is crimped Between the delivery sheath seat (1) and the hemostatic valve (2). 5. The interventional delivery device for occluder according to claim 1, characterized in that, the dilation sheath includes a dilation sheath seat (6) and a dilation sheath (7); the dilation sheath (7) is far away from the expansion sheath One end of the sheath tube seat (6) is a tapered tip. 6. The occluder interventional delivery device according to claim 5, characterized in that one end of the expansion sheath holder (6) has a 6% standard Luer connector, and the other end is fixedly connected to the expansion sheath (7), And this end has an external thread, which cooperates and locks with the internal thread of the hemostasis valve (2). 7. The interventional delivery device for occluder according to claim 5, characterized in that, both the delivery sheath (5) and the expansion sheath (7) are added with developing material. 8. The interventional delivery device for occluder according to claim 1, characterized in that, the loading sheath includes a loading sheath seat (8) and a loading sheath (9); one end of the loading sheath seat (8) It has a 6% standard Luer connector, and the other end is fixedly connected with the loading sheath (9). 9 . The interventional delivery device for occluder according to claim 8 , characterized in that, the loading sheath ( 9 ) is made of a material that is transparent and has a low coefficient of friction. 10. The occluder intervention delivery device according to claim 1, characterized in that, the push rod includes a handle (11) and a steel wire (12), and the steel wire (12) is inserted into the handle (11) and passed through the screw (10) ) fastened.

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