CN216495471U - False aneurysm sealer - Google Patents

Abstract

The utility model discloses a pseudoaneurysm sealer, which belongs to the technical field of interventional medical instruments and comprises a sleeve, wherein the sleeve comprises an outer tube (1) and an inner tube (2), a balloon pipeline (3) is arranged between the outer tube (1) and the inner tube (2), the front end of the balloon pipeline (3) is connected with an elastic balloon (4), the outer tube (1) is provided with a plurality of side through holes (9), and a liquid medicine pipeline (10) is also arranged, and the front end of the liquid medicine pipeline (10) is communicated with the side through holes (9); the utility model can prevent blood coagulation medicine from flowing into artery, the elastic saccule compresses and seals false aneurysm leakage, and high-speed arterial blood flow from the false aneurysm leakage can be prevented from continuously entering a tumor body, so that thrombus in the tumor body is easier to form; and simultaneously, the blood coagulation medicine is injected into the tumor body through the side through hole, so that the thrombus formation in the tumor body is further promoted, the double guarantee of closing the false aneurysm leakage opening is realized, and the occurrence of serious consequences can be avoided.

Description

pseudoaneurysm sealer

technical field

The utility model relates to the technical field of interventional medical devices, in particular to a pseudoaneurysm sealer.

Background technique

With the gradual development of medical technology, interventional diagnosis and treatment technology has been widely used, and iatrogenic pseudoaneurysm is becoming more and more common, but it cannot be completely avoided. Giant aneurysms may have adjacent nerve compression damage and distal tissue ischemia symptoms. If there is mural thrombosis in the tumor, thrombus migration may cause distal arterial embolism and produce corresponding symptoms, or rupture and hemorrhage may occur due to trauma or increased internal pressure. In severe cases, it may even cause hemorrhagic shock and compartment syndrome. Therefore, timely and active treatment is necessary.

The traditional treatment method is surgery, including parent artery ligation, end-to-end anastomosis of aneurysm resection, vascular grafting, and intra-saccular vascular repair of aneurysms, etc., but the risks of surgery are significantly increased.

With the development of ultrasound technology, ultrasound-guided compression therapy was first proposed by Fellmeth in 1991, and since then this method has gradually become the first choice for the treatment of pseudoaneurysm. However, this method has the following disadvantages: (1) the treatment duration is long; (2) prolonged compression causes pain and discomfort in the limbs, and may even be ischemia; (3) the success rate is low, and the success of some patients undergoing anticoagulation therapy lower rate.

In recent years, many researchers have begun to use ultrasound-guided thrombin injection to treat pseudoaneurysm. Studies have shown that: the success rate of embolization therapy is high, and ultrasound-guided pseudoaneurysm embolization therapy has the following advantages: (1) high success rate; (2) easy tolerance by patients; (3) short operation time; (4) recurrence rate Very low; (5) High safety; (6) This method can be selected for patients who are ineffective or unable to perform compression therapy. For patients requiring systemic anticoagulation after catheterization, embolization has a higher success rate and lower recurrence rate than compression therapy.

However, there are still some problems in the conventional ultrasound-guided pseudoaneurysm embolization therapy. Specifically, the possible complications of this method include the inadvertent retrograde flow of hemostatic drugs such as thrombin into the limb arteries, resulting in iatrogenic arterial thrombosis. , causing serious consequences.

Utility model content

The purpose of this utility model is to provide a false aneurysm sealer to solve the above problems.

In order to achieve the above purpose, the technical solution adopted by the present invention is as follows: a pseudoaneurysm sealer, comprising a sleeve, the sleeve includes an outer tube and an inner tube sleeved in the lumen of the outer tube, A balloon pipeline is arranged between the outer tube and the inner tube, the front end of the balloon pipeline is connected with an elastic balloon, the elastic balloon protrudes from the front end of the outer tube when inflated, and the rear end of the balloon pipeline A first inlet is provided, a first sealing member is arranged at a position close to the first inlet of the balloon pipeline, and both the first inlet and the first sealing member are located outside the rear end of the outer tube; The inner tube is sleeved with a trocar; a number of side through holes are arranged at the position close to the front end of the outer tube, and a liquid medicine pipeline is also arranged between the outer tube and the inner tube. The front end of the liquid medicine pipeline is communicated with the side through hole, and the rear end of the medicinal liquid pipeline is provided with a second inlet;

It also includes a sealing cap, the sealing cap is threadedly connected with the inner wall of the end of the inner tube, and an insertion port for inserting the trocar is provided on the sealing cap. A sealing cap is provided at the end of the inner tube to prevent the blood in the tumor cavity from flowing out of the inner tube due to high pressure. The sealing cap can be threadedly connected with the inner tube, or can be inserted into the inner tube by setting a sealing ring, that is, the sealing cap is inserted into the end of the inner tube, and the sealing effect can be guaranteed due to the sealing ring;

Of course, the sealing cap and the trocar can also be fixed as a kit, and after the trocar is taken out, another sealing cap without a trocar can be used for sealing connection with the inner tube.

By arranging an elastic balloon at the front end of the sleeve, the utility model plays the role of local physical sealing and pressing for the leakage of the pseudoaneurysm. Under the guidance of ultrasound, the trocar is inserted into the tumor to reach the vicinity of the leak, and normal saline or gas is injected through the first inlet to fill the elastic balloon, which can accurately compress and seal the leak;

The front end of the obturator is provided with several side through holes. When the elastic balloon is pressed, the leak is closed. At this time, coagulation drugs, such as thrombin, gelatin sponge, etc., are injected into the drug solution channel, and the drug solution will pass through. The side through hole flows out of the outer tube and enters the aneurysm cavity of the pseudoaneurysm, so that a thrombus can be rapidly formed in the aneurysm cavity; at this time, because the leakage port has been closed by the elastic balloon, it avoids the iatrogenic cause of the blood coagulation drug flowing into the artery. Arterial thrombosis causes limb ischemia and avoids serious complications.

As a preferred technical solution: the inflated diameter of the elastic balloon is 0.3cm-1.0cm. At present, the diameter of the common pseudoaneurysm leakage is generally 0.1cm-0.5cm, and the elastic balloon is set to 0.3cm-1.0cm, which can achieve the best sealing effect.

As a preferred technical solution: the elastic balloon is annular, and is located inside the front end of the outer tube when it is not inflated.

As a preferred technical solution: an annular developing mark is provided on the outer wall of the front end of the outer tube.

As a further preferred technical solution: the development mark is a spiral metal sheet.

The visualization mark plays the role of the visualization mark under ultrasound, which is convenient for clear positioning under the image, avoids the interference of gas or other factors, and the positioning is more accurate.

As a preferred technical solution: the first sealing member is a clip. The structure of the clip is simple. Of course, the matching balloon pipeline is a flexible pipeline, which is convenient to seal the balloon pipeline after air or liquid through the balloon pipeline to inflate and bulge the elastic balloon at the front to prevent air leakage or The leakage caused the elastic balloon to deflate.

Of course, seals in the form of valves and the like can also be used.

In addition, it is preferable that the rear end of the elastic balloon is fixed to the front end of the cannula. Through the relative fixation of the elastic balloon and the cannula, the elastic balloon is prevented from being displaced (rearward) due to the pulling of the balloon pipeline, or the elastic balloon may be affected by the leakage of the pseudoaneurysm due to excessive forward movement due to inflation or injection of liquid. The closure fails to ensure the stability and reliability of the closure.

As a preferred technical solution: a second sealing member is provided at a position of the medicinal liquid pipeline close to the second inlet.

As a further preferred technical solution: the second sealing member is a clip.

Compared with the prior art, the advantages of the present utility model are: the utility model prevents the coagulation drug from flowing into the artery by means of the elastic balloon blocking, and the elastic balloon compresses and seals the leakage of the false aneurysm, which can prevent the flow of the blood coagulation from the false artery. The high-speed arterial blood flow of the aneurysm leakage continues to enter the tumor, which makes the thrombus in the tumor easier to form; at the same time, the coagulation drug is injected into the tumor through the side through hole, which further promotes the thrombosis in the tumor, thereby realizing the sealing of the pseudoaneurysm leakage. Double protection, while preventing iatrogenic arterial thrombosis and avoiding serious consequences.

Description of drawings

FIG. 1 is a structural state diagram of the pseudoaneurysm sealer according to Embodiment 1 of the present utility model when it is not in use;

2 is a structural state diagram of the pseudoaneurysm sealer according to Embodiment 1 of the present utility model when a trocar is used to enter a leak;

3 is a structural state diagram of the pseudoaneurysm sealer according to Embodiment 1 of the present utility model when the trocar is drawn out when the elastic balloon is filled;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1 .

In the figure: 1, outer tube; 2, inner tube, 3, balloon pipeline; 4, elastic balloon; 5, first inlet; 6, first seal; 7, trocar; 8, side through hole; 9. Liquid medicine pipeline; 10. Second inlet; 11. Development mark; 12. Second sealing member; 13. Sealing cap.

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings.

Example 1:

Referring to Figures 1 and 4, a pseudoaneurysm sealer includes a cannula, the cannula includes an outer tube 1 and an inner tube 2 sheathed in the lumen of the outer tube 1, in the outer tube 1 and the inner tube 2 are provided with a balloon pipe 3, the front end of the balloon pipe 3 is connected with an elastic balloon 4, the elastic balloon 4 extends out of the front end of the outer pipe 1 when inflated, the balloon pipe 3 A first inlet 5 is provided at the rear end of the balloon pipe 3, and a first sealing member 6 is arranged at a position close to the first inlet 5 of the balloon pipe 3. The first sealing member 6 in this embodiment is a clip, and the first sealing member 6 is a clip. An inlet 5 and a first seal 6 are located outside the rear end of the outer tube 1; a trocar 7 is sleeved inside the inner tube 2; The side through hole 8 is also provided with a liquid medicine pipe 9 between the outer pipe 1 and the inner pipe 2. The front end of the liquid medicine pipe 9 is communicated with the side through hole 8. The end is provided with a second inlet 10, and a second sealing member 12 is provided at the position of the medicinal liquid pipeline 9 close to the second inlet 10, and the second sealing member 12 in this embodiment is also a clip;

In this embodiment, the inflated diameter of the elastic balloon 4 is 0.3cm-1.0cm;

An annular developing mark 11 is provided on the outer wall of the front end of the outer tube 1; the developing mark 11 in this embodiment is a spiral metal sheet;

When using, first measure the leakage of the pseudoaneurysm according to ultrasound and other means, and select an obturator of an appropriate size (ie, an elastic balloon 4 of an appropriate size),

Then, under the guidance of ultrasound, the trocar 7 is sheathed into the inner tube 2, and the end of the trocar 7 is equipped with a sealing cap 13. After the trocar 7 is sheathed in the inner tube 2, the outer wall of the sealing cap 13 at the tail is connected to the inner tube 2. The inner wall of the end is threadedly connected (to facilitate the fixation and removal of the trocar 7), that is, the cannula is punctured with the trocar 7 into the pseudoaneurysm about 2mm away from the leak, as shown in Figure 2; then the cannula is withdrawn Needle 7, cover with sealing cap 13, as shown in Figure 3.

Next, inject physiological saline into the balloon tube 3 through the first inlet 5 to inflate the elastic balloon 4 at the front to form a disc shape, compress and close the leak, and close the second seal 6 to keep the elastic balloon 4 inflated state;

Then, the coagulation drug is injected through the outer tube of the second inlet 10, and then the second sealing member 12 is closed, so that the leakage port is physically compressed, and the hemostatic drug drug promotes thrombosis in the tumor;

Ultrasound observation of the tumor, if the thrombus is completely formed and there is no blood flow signal, the physiological saline in the elastic balloon 4 is drawn out through the first inlet 5, the elastic balloon 4 is retracted into the outer tube 1, the cannula is removed, and the operation is completed.

Example 2:

Both the first sealing member 6 and the second sealing member 12 in this embodiment use sealing valves, and the elastic balloon is filled by pushing and inflating a syringe, and the rest is the same as that of Embodiment 1.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (7)

1. A pseudoaneurysm sealer, characterized in that it comprises a sleeve, the sleeve comprising an outer tube (1) and an inner tube (2) sleeved in the inner cavity of the outer tube (1), A balloon conduit (3) is arranged between the outer tube (1) and the inner tube (2), an elastic balloon (4) is connected to the front end of the balloon conduit (3), and the elastic balloon ( 4) The front end of the outer tube (1) protrudes during filling, the rear end of the balloon tube (3) is provided with a first inlet (5), and the balloon tube (3) is close to the first inlet ( 5) is provided with a first seal (6), the first inlet (5) and the first seal (6) are both located outside the rear end of the outer pipe (1); 2) The inner sleeve is provided with a trocar (7); a number of side through holes (8) are arranged at a position close to the front end of the outer tube (1), and the outer tube (1) and the inner tube (2) A medicinal liquid pipeline (9) is also arranged therebetween, the front end of the medicinal liquid pipeline (9) communicates with the side through hole (8), and the rear end of the medicinal liquid pipeline (9) is provided with a second inlet ( 10); further comprising a sealing cap (13), the sealing cap (13) is threadedly connected to the inner wall of the end of the inner tube (2), and a Insertion port for trocar (7). 2 . The pseudoaneurysm obturator according to claim 1 , wherein the diameter of the elastic balloon ( 4 ) after filling is 0.3 cm-1.0 cm. 3 . 3 . The pseudoaneurysm sealer according to claim 1 , characterized in that: an annular developing mark ( 11 ) is provided on the outer wall of the front end of the outer tube ( 1 ). 4 . 4 . The pseudoaneurysm sealer according to claim 3 , characterized in that: the developing mark ( 11 ) is a helical metal sheet. 5 . 5. The pseudoaneurysm obturator according to claim 1, wherein the first sealing member (6) is a clip. 6. The pseudoaneurysm closure according to claim 1, characterized in that: a second sealing member (12) is provided at a position of the medicinal liquid pipeline (9) close to the second inlet (10). . 7. The pseudoaneurysm obturator according to claim 6, wherein the second sealing member (12) is a clip.

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