Pseudoaneurysm treatment device

Abstract

The utility model 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] The utility model relates to medical instrument technical field, concretely relates to a false aneurysm treatment device. BACKGROUND

[0002] False aneurysm (PSA) refers to the blood flow from the tear or break of the arterial wall and is wrapped by the adjacent tissue of the aorta to form hematoma, and is mostly caused by trauma; the false aneurysm has a channel communicating with the artery, and the untreated false aneurysm can cause adverse consequences such as blood vessel rupture, thromboembolism, compression of the surrounding nerve tissue, skin and subcutaneous tissue necrosis and significant blood loss, so it is necessary to timely and accurately and safely treat the false aneurysm. The method of injecting thrombin into the false aneurysm cavity under the guidance of ultrasound can quickly close the false aneurysm, but since the false aneurysm has a channel communicating with the artery, directly injecting thrombin into the false aneurysm cavity can affect the blood flow in the artery and cause thrombosis, and there are uncontrollable factors. Therefore, a safe, accurate and reliable device for treating false aneurysm is needed. SUMMARY

[0003] To solve the above problems in the prior art, the utility model provides a safe and reliable false aneurysm treatment device.

[0004] To achieve the above technical purpose, the utility model adopts the technical scheme of:

[0005] A false aneurysm treatment device, comprising a trocar system and an injection needle; the trocar system comprises a trocar, a puncture needle, a blocking needle and a blunt needle, and the puncture needle, the blocking needle and the blunt needle can move in the trocar; the front end of the puncture needle is a sharp head; the blocking needle body is tubular, and the front end is a balloon; the front end of the blunt needle is a blunt head, which is used for smearing thrombin; the injection needle is used for injecting thrombin into the false aneurysm.

[0006] Further, it further includes a puncture frame, the puncture frame includes a probe clamp and a guide, the guide is detachably connected with the probe clamp; the probe clamp is used for fixing an ultrasonic probe, the guide is rotatably connected with a first guide hole matched with the trocar and a second guide hole matched with the injection needle, the trocar is movably connected in the first guide hole, and the injection needle is movably connected in the second guide hole.

[0007] Further, the guide comprises a base, two connecting plates are arranged on the side away from the probe clamp, the first guide hole and the second guide hole are rotatably connected between the two connecting plates, the first guide hole and the second guide hole are arranged at intervals, and the first guide hole, the second guide hole and the connecting plate are rotatably connected through the rotating shaft.

[0008] Further, the guide further comprises a locking member, one end of the rotating shaft is provided with a stepped column, the large column of the stepped column abuts against the inner wall of the connecting plate, the small column of the stepped column penetrates through the connecting plate and extends to the outside of the connecting plate, and the small column is provided with external threads at a section exceeding the connecting plate.

[0009] Preferably, the locking member is provided with an anti-skid groove around the periphery.

[0010] Further, the probe clamp is annular and used for clamping the periphery of the ultrasonic probe.

[0011] Preferably, the probe clamp is provided with a sliding groove on the outer wall of one side in the length direction, the base of the guide is provided with a sliding block, and the guide is connected to the sliding groove of the probe clamp through the sliding block.

[0012] Preferably, the sliding block is T-shaped.

[0013] The present application has the following beneficial effects:

[0014] The false aneurysm treatment device of the present application realizes puncture, plugging of the connection between the false aneurysm and the artery and blood coagulation through the trocar system, realizes injection of thrombin into the false aneurysm through the injection needle, limits the blood coagulation area in the false aneurysm, and improves the reliability of false aneurysm treatment.

[0015] The false aneurysm treatment device of the present application further comprises a puncture frame for fixing the puncture probe, the guide trocar and the injection needle, so that the puncture needle is always in the ultrasonic influence, and the medical safety and efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0017] Figure 1 is a schematic diagram of the trocar system in the present application;

[0018] Figure 2 is a structural schematic diagram of the puncture frame in the present application;

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

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

[0021] Reference signs: 1-sheath, 2-puncture needle, 3-blocking 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-connection plate, 525-locking piece, 526-sliding block, 6-ultrasound probe. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0023] A false aneurysm treatment device, as shown in Figure 1 , comprises a trocar system and an injection needle; the trocar system comprises a sheath 1, a puncture needle 2, a blocking needle 3 and a blunt needle 4, the puncture needle 2, the blocking needle 3 and the blunt needle 4 are movable in the sheath 1; the front end of the puncture needle 2 is sharp; the blocking needle 3 is tubular, and the front end is a balloon 31, water or gas can be injected into the balloon 31 from the needle body through a syringe; the front end of the blunt needle 4 is a rough blunt head, which is used for applying thrombin and sending to the connection between the false aneurysm and the artery; the injection needle (not shown in the figure) is used for injecting thrombin into the false aneurysm.

[0024] Further, as shown in Figures 2-4 , it further comprises a puncture frame 5, the puncture frame 5 comprises a probe clamp 51 and a guide 52, the guide 52 is detachably connected with the probe clamp 51; the probe clamp 51 is used for fixing an ultrasound probe, the guide 52 is rotatably connected with a first guide hole 521 matched with the sheath 1 and a second guide hole 522 matched with the injection needle, the sheath 1 is movably connected in the first guide hole 521, and the injection needle is movably connected in the second guide hole 522.

[0025] Further, the guide 52 comprises 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, a first guide hole 521 and a second guide hole 522 are rotationally connected between the two connecting plates 524, the first guide hole 521 and the second guide hole 522 are arranged at intervals, and the first guide hole 521, the second guide hole 522 and the connecting plate 524 are rotationally connected through a rotating shaft; preferably, a locking piece 525 is further included, one end of the rotating shaft is provided with a stepped column, the large column of the stepped column abuts against the inner wall of the connecting plate 524, the small column of the stepped column penetrates through the connecting plate 524 and extends to the outside of the connecting plate 524, and the small column is provided with external threads at the section exceeding the connecting plate 524; the locking piece 525 is threadedly connected with the small column section of the rotating shaft, and the rotating shaft is fixed by abutting against the outer wall of the connecting plate 524 through the screwing of the locking piece 525.

[0026] Preferably, the probe clamp 51 is annular, and is used for clamping the outer periphery of the ultrasonic probe. Preferably, a sliding groove is arranged on the outer wall of one side of the probe clamp 51 in the length direction, and a sliding block 526 is arranged on the base 523 of the guide 52; the guide 52 is slidably connected in the sliding groove of the probe clamp 51 through the sliding block 526.

[0027] The use method of the false aneurysm treatment device is as follows:

[0028] First step: fixing the ultrasonic probe 6 on the probe clamp 51 of the puncture frame, movably inserting the sleeve 1 into the first guide hole 521, and adjusting the angle of the guide;

[0029] Second step: loading the puncture needle 2 in the sleeve 1, and puncturing the puncture needle 2 and the sleeve 6 into the false aneurysm under the guidance of the ultrasonic probe 6, and then discharging the puncture needle;

[0030] Third step: inserting the occlusion needle 3, guiding the balloon 31 at the front end of the occlusion needle 3 to the connection position between the false aneurysm and the artery, injecting water into the balloon 31 to make the balloon expand, and closing the connection port between the false aneurysm and the artery;

[0031] Fourth step: inserting the injection needle into the false aneurysm through the second guide hole 522, and injecting the thrombin into the false aneurysm through the injection needle;

[0032] Fifth step: after the blood in the false aneurysm is coagulated, discharging the occlusion needle 3 from the sleeve 1, inserting the blunt needle 4 into the sleeve 1 after smearing the thrombin on the head of the blunt needle 4, and placing the blunt needle at the connection position between the false aneurysm and the artery; after the blood at the position is coagulated, discharging the blunt needle 4 and the sleeve 1.

[0033] Of course, the utility model can also have other various embodiments, and the person skilled in the art can make various corresponding changes and deformation according to the utility model without departing from the spirit and essence of the utility model, but these corresponding changes and deformation should all belong to the protection scope of the claims attached to the utility model.

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 (1) 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 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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