Pseudoaneurysm treatment device

Abstract

The invention relates to the technical field of medical instruments, and discloses a pseudoaneurysm treatment device which comprises a trocar system and an injection needle. The trocar system comprises a cannula, a puncture needle, a plugging needle and a blunt needle, and the puncture needle, the plugging needle and the blunt needle can move in the cannula; the front end of the puncture needle is a sharp head; a balloon is arranged at the front end of the plugging needle body; the front end of the blunt needle is blunt and is used for smearing thrombin; the injection needle is used for injecting thrombin into the pseudoaneurysm. The trocar system is used for achieving puncture and blocking and blood coagulation of the joint of the pseudoaneurysm and the artery, thrombin is injected into the pseudoaneurysm through the injection needle, the blood coagulation area can be limited in the pseudoaneurysm, and the reliability of pseudoaneurysm treatment is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a device for treating pseudoaneurysms. Background Technology

[0002] A pseudoaneurysm (PSA) occurs when the wall of an artery is torn or ruptured, allowing blood to leak out and become trapped in adjacent tissues, forming a hematoma. It is often caused by trauma. PSAs have a connection to an artery, and untreated PSAs can lead to complications such as ruptured blood vessels, thromboembolism, compression of surrounding nerves, necrosis of the skin and subcutaneous tissue, and significant blood loss. Therefore, timely, accurate, and safe treatment of PSAs is crucial. While ultrasound-guided intralesional injection of thrombin can rapidly close a PSA, the direct injection of thrombin into the PSA cavity may impair arterial blood flow, potentially causing thrombosis and introducing uncontrollable factors. Therefore, a safe, accurate, and reliable device for treating PSAs is needed. Summary of the Invention

[0003] To address the shortcomings of the prior art, the present invention provides a safe and reliable device for treating pseudoaneurysms.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0005] A device for treating pseudoaneurysms includes a cannula system and an injection needle; the cannula system includes a cannula, a puncture needle, an occlusion needle, and a blunt-tipped needle, all of which are movable within the cannula; the puncture needle has a sharp tip; the occlusion needle has a tubular body with a balloon at its tip; the blunt-tipped needle has a blunt tip for applying thrombin; and the injection needle is used to inject thrombin into the pseudoaneurysm.

[0006] Furthermore, it also includes a puncture frame, which includes a probe clamp and a guide, the guide being detachably connected to the probe clamp; the probe clamp is used to fix the ultrasound probe, and the guide is rotatably connected to a first guide hole adapted to the cannula and a second guide hole adapted to the injection needle, the cannula being movably connected in the first guide hole and the injection needle being movably connected in the second guide hole.

[0007] Furthermore, the guide includes a base, and two connecting plates are arranged on the left and right sides of the base away from the probe clamp. A first guide hole and a second guide hole are rotatably connected between the two connecting plates. The first guide hole and the second guide hole are spaced apart. The first guide hole and the second guide hole are rotatably connected to the connecting plates through a rotating shaft.

[0008] Furthermore, the guide also includes a locking component. One end of the rotating shaft is provided with a stepped post. The larger post of the stepped post abuts against the inner wall of the connecting plate, and the smaller post of the stepped post penetrates the connecting plate and extends to the outer side of the connecting plate. The section of the smaller post extending beyond the connecting plate is provided with an external thread, and the locking component is threadedly connected to the smaller post section of the rotating shaft.

[0009] Preferably, the locking element has an anti-slip groove on its outer periphery.

[0010] Furthermore, the probe clamp is ring-shaped and is used to hold the ultrasound probe on its outer periphery.

[0011] Preferably, the probe clamp has a groove on one side of its outer wall along its length, and the guide has a slider on its base. The guide is slidably connected to the groove of the probe clamp via the slider.

[0012] Preferably, the slider is T-shaped.

[0013] The beneficial effects of this invention are:

[0014] The pseudoaneurysm treatment device of the present invention achieves puncture, blockage and coagulation at the connection between the pseudoaneurysm and the artery through a cannula system, and injects thrombin into the pseudoaneurysm through an injection needle, which can limit the coagulation area within the pseudoaneurysm and improve the reliability of pseudoaneurysm treatment.

[0015] The pseudoaneurysm treatment device of the present invention also includes a puncture frame for fixing the puncture probe, guide cannula and injection needle, ensuring that the puncture needle and the like are always under the influence of ultrasound, thereby improving medical safety and efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the cannula system in this invention;

[0018] Figure 2 This is a schematic diagram of the puncture frame in this invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the guide;

[0020] Figure 4 This is a structural schematic diagram of the application state of the present invention.

[0021] Reference numerals: 1-cannula, 2-puncture needle, 3-occlusion needle, 31-balloon, 4-blunt needle, 5-puncture frame, 51-probe clamp, 52-guide, 521-first guide hole, 522-second guide hole, 523-base, 524-connecting plate, 525-locking element, 526-slider, 6-ultrasound probe. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] A pseudoaneurysm treatment device, such as Figure 1 As shown, the device includes a cannula system and an injection needle. The cannula system includes a cannula 1, a puncture needle 2, an occlusion needle 3, and a blunt-tipped needle 4, which can move within the cannula 1. The puncture needle 2 has a sharp tip. The occlusion needle 3 has a tubular body with a balloon 31 at its tip, into which water or gas can be injected using a syringe. The blunt-tipped needle 4 has a rough, blunt tip and is used to apply thrombin and deliver it to the junction of the pseudoaneurysm and the artery. The injection needle (not shown) is used to inject thrombin into the pseudoaneurysm.

[0024] Furthermore, such as Figures 2-4 As shown, it also includes a puncture frame 5, which includes a probe clamp 51 and a guide 52. The guide 52 is detachably connected to the probe clamp 51. The probe clamp 51 is used to fix the ultrasound probe. The guide 52 is rotatably connected to a first guide hole 521 adapted to the cannula 1 and a second guide hole 522 adapted to the injection needle. The cannula 2 is movably connected in the first guide hole 521, and the injection needle is movably connected in the second guide hole 522.

[0025] Furthermore, the guide 52 includes a base 523, on the side of the base 523 away from the probe clamp 51, two connecting plates 524 are arranged opposite each other. The two connecting plates 524 are rotatably connected to a first guide hole 521 and a second guide hole 522. The first guide hole 521 and the second guide hole 522 are spaced apart. The first guide hole 521 and the second guide hole 522 are rotatably connected to the connecting plates 524 via a rotating shaft. Preferably, it also includes a locking member 525. One end of the rotating shaft is provided with a stepped column. The large column of the stepped column 524 abuts against the inner wall of the connecting plate 524, and the small column of the stepped column passes through the connecting plate 524 and extends to the outside of the connecting plate 524. The section of the small column extending beyond the connecting plate 524 is provided with an external thread. The locking member 525 is threadedly connected to the small column section of the rotating shaft. By turning the locking member 525 to abut against the outer wall of the connecting plate 524, the rotating shaft can be fixed.

[0026] Preferably, the probe clamp 51 is annular and is used to clamp the outer periphery of the ultrasound probe. Preferably, a groove is provided on one side of the outer wall of the probe clamp 51 along its length, and a slider 526 is provided on the base 523 of the guide 52. The guide 52 is slidably connected to the groove of the probe clamp 51 through the slider 526.

[0027] The method of using the pseudoaneurysm treatment device of the present invention is as follows:

[0028] Step 1: Fix the ultrasound probe 6 onto the probe clamp 51 of the puncture frame, insert the cannula 2 into the first guide hole 521, and adjust the angle of the guide.

[0029] Step 2: Insert the puncture needle 2 into the cannula 1, and under the guidance of the ultrasound probe 6, insert the puncture needle 2 and the cannula 6 into the pseudoaneurysm, and then pull out the puncture needle.

[0030] Step 3: Insert the occlusion needle 3, guide the balloon 31 at the front end of the occlusion needle 3 to the connection between the pseudoaneurysm and the artery, inject water into the balloon 31 to inflate the balloon and seal the connection between the pseudoaneurysm and the artery.

[0031] Step 4: Insert the injection needle into the pseudoaneurysm through the second guide hole 522, and inject thrombin into the pseudoaneurysm through the injection needle;

[0032] Step 5: After the blood in the pseudoaneurysm has clotted, pull out the sealing needle 3 from the cannula 2, apply thrombin to the tip of the blunt needle 4 and insert it into the cannula 2, place the blunt tip at the junction of the pseudoaneurysm and the artery, and after the blood at that point has clotted, pull out the blunt needle 4 and the cannula 2.

[0033] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A device for treating pseudoaneurysms, characterized in that: The device includes a cannula system and an injection needle; the cannula system includes a cannula (1), a puncture needle (2), an occlusion needle (3), and a blunt needle (4), which are movable within the cannula (1); the puncture needle (2) has a sharp tip; the occlusion needle (3) has a tubular body with a balloon (31) at the tip; the blunt needle (4) has a blunt tip and is used to apply thrombin; the injection needle is used to inject thrombin into the pseudoaneurysm.

2. The pseudoaneurysm treatment device according to claim 1, characterized in that: It also includes a puncture frame (5), which includes a probe clamp (51) and a guide (52). The guide (52) is detachably connected to the probe clamp (51). The probe clamp (51) is used to fix the ultrasound probe. The guide (52) is rotatably connected to a first guide hole (521) adapted to the cannula (1) and a second guide hole (522) adapted to the injection needle. The cannula (2) is movably connected in the first guide hole (521), and the injection needle is movably connected in the second guide hole (522).

3. The pseudoaneurysm treatment device according to claim 2, characterized in that: The guide (52) includes a base (523). Two connecting plates (524) are arranged on the left and right sides of the base (523) away from the probe clamp (51). The two connecting plates (524) are rotatably connected to a first guide hole (521) and a second guide hole (522). The first guide hole (521) and the second guide hole (522) are spaced apart. The first guide hole (521) and the second guide hole (522) are rotatably connected to the connecting plates (524) through a rotating shaft.

4. The pseudoaneurysm treatment device according to claim 3, characterized in that: The guide (52) also includes a locking member (525). One end of the rotating shaft is provided with a stepped column. The large column of the stepped column (524) abuts against the inner wall of the connecting plate (524). The small column of the stepped column passes through the connecting plate (524) and extends to the outside of the connecting plate (524). The section of the small column that extends beyond the connecting plate (524) is provided with an external thread. The locking member (525) is threadedly connected to the small column section of the rotating shaft.

5. The pseudoaneurysm treatment device according to claim 4, characterized in that: The locking member (525) has an anti-slip groove on its outer periphery.

6. The pseudoaneurysm treatment device according to claim 3, characterized in that: The probe clamp (51) is ring-shaped and is used to hold the ultrasound probe on the outer periphery.

7. The pseudoaneurysm treatment device according to claim 6, characterized in that: The probe clamp (51) has a groove on one side of its outer wall along its length, and the guide (52) has a slider (526) on its base (523). The guide (52) is slidably connected to the groove of the probe clamp (51) through the slider (526).

8. The pseudoaneurysm treatment device according to claim 7, characterized in that: The slider (526) is T-shaped.

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