CN2193722Y

CN2193722Y - Therapeutic equipment of patent arterial duct

Info

Publication number: CN2193722Y
Application number: CN 94224658
Authority: CN
Inventors: 陈达伟; 曾国洪; 刘改; 张智伟; 李渝芬
Original assignee: GUANGDONG PROV CARDIOVASCULAR DISEASE INST; National Research Center For Medical Appliance Engineering Technology
Current assignee: GUANGDONG PROV CARDIOVASCULAR DISEASE INST; National Research Center For Medical Appliance Engineering Technology
Priority date: 1994-07-29
Filing date: 1994-07-29
Publication date: 1995-04-05
Anticipated expiration: 2004-07-29

Abstract

The utility model relates to a device used for blocking a patent arterial duct, which comprises a retractable umbrella-shaped blocking device (8) capable of opening automatically and a conveying device thereof, wherein the blocking device (8) can fix and elastically expand two flaky sponges by a skeleton which is composed of a plurality of spring metal wires (2). When the utility model is used to block the patent arterial duct of infants, the utility model has the advantages of high safety, reliability and simple operation. The utility model is a good medical device for curing patent arterial duct in infants.

Description

Therapeutic equipment of patent arterial duct

This utility model relates to a kind of therapeutic equipments for the treatment of pediatric cardiac patent ductus arteriosus disease by obstruction patent ductus arteriosus.

Chinese invention patent CN2075510 introduces the therapeutic instrument that two tampers of a kind of usefulness all stop up human heart valve defective; But two tampers of this instrument are outside instrument successively places the facies anterior lateralis and back of defect respectively; Two tampers are separated from one another; So complicated operation, tamper comes off easily, and the healing success rate is low.

The purpose of this utility model provides a kind of need not operating on, and can make things convenient for again, accurately, reliably, stops up the device of children's's patent ductus arteriosus.

This utility model is achieved in that a kind of device that is used for stopping up the patent ductus arteriosus of design, and it comprises, blocking device and conveyer device two parts.Blocking device is a kind of umbrella shape device, by two lamellar sponges, promptly sponge (1), sponge (1 ") and three above wire of spring (2) are formed, the lamellar sponge can be circular, or other regular polygon; Wherein an end of wire of spring (2) stretches and is fixed on the outer surface of sponge (1) to the edge from the center of lamellar sponge (1) along its outer surface, the other end of wire of spring (2) passes sponge (1) and the sponge (center of 1 "); (stretch to the edge on the outer surface of 1 "), and fix on its outer surface in sponge.The fixed form of above wire of spring (2) can adopt special adhesive or bind with silk thread.Several wire of spring (2) (are radial arrangement on the outer surface of 1 ") in sponge (1) and sponge.To stop up umbrella device (8) and shrink outlet one end that places in the delivery conduit (7) by Fig. 3 shape, the knot that can be undone by a pull (3) at blocking device (8) center go up be actively the soft silk of metal (6), the other end of the soft silk of metal (6) and operating mechanism (5) links and controlled by it.Cut patient's vein, under the supervision that monitors instrument, delivery conduit (7) is delivered to patent conduit position along vein, handle operating mechanism (5), make the soft silk of metal (6) push ahead, promoting blocking device (8) pushes ahead, when the sponge (1) of blocking device (8) front leaves the outlet of delivery conduit (7), under the elastic reaction of wire of spring (2), sponge (1) is opened, the front surface of sealing patent ductus arteriosus part, delivery conduit is moved slightly backward, make sponge (1 ") left the outlet of delivery conduit (7), like this sponge (1 ") also opened and sealed patent ductus arteriosus rear surface partly, manipulation mechanism (5) makes soft silk of metal (6) and knot that can be undone by a pull break away from; Draw back delivery conduit (7), leave vein blood vessel.

The front view of Fig. 1, this utility model blocking device.

The side view of Fig. 2, this utility model blocking device.

The structure chart of Fig. 3, this utility model conveyer device.

Blocking device of the present utility model struts two sheet sponges with the elastic skeleton that three above wire of spring (2) form; Before course of conveying, can place the exit of delivery conduit (7) easily with its contraction again, in case delivery conduit (7) arrives assigned address, sealing, it is also simple and reliable to throw operation into; And sealing effect is good, the danger that does not come off.

Embodiment: a kind of device that is used for stopping up the patent ductus arteriosus, see Fig. 1～Fig. 3.

Blocking device is by two round sheet sponges, i.e. sponge (1), and sponge (form by 1 ") and four wire of spring (2); One end of its door stretches along its outer surface crosswise edge from the center of sponge (1), and is fixed on the surface of sponge (1) with silk thread.The other end of wire of spring (2) passes sponge (1) and the sponge (center of 1 "); (also oppositely extend with the same plane of an aforementioned end on the outer surface of 1 ") in sponge, be fixed on this outer surface with silk thread, thereby (form crossing distribution on the outer surface of 1 ") in sponge.

Conveyer device is by the soft silk of delivery conduit (7), metal (6), form through the blocking device (8), knot that can be undone by a pull (3) and the operating mechanism (5) that shrink, wherein, outlet one end in delivery conduit (7) is equipped with the blocking device (8) through shrinking, the knot that can be undone by a pull at its center (3) with an end of the soft silk of blocking device (8) and metal (6) is the other end of the soft silk of metal (6) and operating mechanism (5) binding actively.

Claims

1, a kind of therapy equipment of patent ductus arteriosus, it comprises, blocking device and conveyer device two parts, it is characterized in that: this blocking device is the umbrella shape device, by two lamellar sponges, it is sponge (1), sponge (form; wherein an end of wire of spring (2) stretches and is fixed on the surface of sponge (1) to the edge from the center of lamellar sponge (1) along its outer surface; the other end of wire of spring (2) passes sponge (1) and the sponge (center of 1 ") by 1 ") and three above wire of spring (2), sponge (1 ") in appearance to the edge stretch and fixing on its outer surface, wire of spring (2) (is radial arrangement on the outer surface of 1 ") in sponge (1) and sponge; This conveyer device is by the soft silk of delivery conduit (7), metal (6), form through the above-mentioned blocking device (8), knot that can be undone by a pull (3) and the operating mechanism (5) that shrink, wherein, it is that the other end of the soft silk of metal (6) is connected with operating mechanism (5) with an end of the soft silk of blocking device (8) and metal (6) that outlet one end in delivery conduit (7) is equipped with blocking device (8) through shrinking, knot that can be undone by a pull (3) actively.