CN221949898U - Percutaneous intervention deep vein arterialized ostomy and stent release system - Google Patents
Percutaneous intervention deep vein arterialized ostomy and stent release system Download PDFInfo
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- CN221949898U CN221949898U CN202323094570.5U CN202323094570U CN221949898U CN 221949898 U CN221949898 U CN 221949898U CN 202323094570 U CN202323094570 U CN 202323094570U CN 221949898 U CN221949898 U CN 221949898U
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- puncture needle
- balloon
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- guide wire
- catheter
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- 210000003462 vein Anatomy 0.000 title claims abstract description 34
- 238000005452 bending Methods 0.000 claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims abstract description 13
- 210000001367 artery Anatomy 0.000 claims abstract description 11
- 239000003550 marker Substances 0.000 claims description 2
- 210000002489 tectorial membrane Anatomy 0.000 claims description 2
- 230000002792 vascular Effects 0.000 abstract description 5
- 210000005077 saccule Anatomy 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 206010029113 Neovascularisation Diseases 0.000 description 4
- 238000002266 amputation Methods 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 238000002399 angioplasty Methods 0.000 description 3
- 239000002872 contrast media Substances 0.000 description 3
- 201000001320 Atherosclerosis Diseases 0.000 description 2
- 208000005764 Peripheral Arterial Disease Diseases 0.000 description 2
- 208000030831 Peripheral arterial occlusive disease Diseases 0.000 description 2
- 230000001684 chronic effect Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- 230000000302 ischemic effect Effects 0.000 description 2
- 201000002818 limb ischemia Diseases 0.000 description 2
- 230000036407 pain Effects 0.000 description 2
- 230000000250 revascularization Effects 0.000 description 2
- 230000008733 trauma Effects 0.000 description 2
- 210000002073 venous valve Anatomy 0.000 description 2
- 206010003210 Arteriosclerosis Diseases 0.000 description 1
- 208000032064 Chronic Limb-Threatening Ischemia Diseases 0.000 description 1
- 206010017711 Gangrene Diseases 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
- 230000008321 arterial blood flow Effects 0.000 description 1
- 210000002565 arteriole Anatomy 0.000 description 1
- 208000011775 arteriosclerosis disease Diseases 0.000 description 1
- 230000003143 atherosclerotic effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002690 local anesthesia Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 208000001072 type 2 diabetes mellitus Diseases 0.000 description 1
- 231100000397 ulcer Toxicity 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
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Abstract
The utility model discloses a percutaneous intervention deep vein arterialized ostomy and stent release system, which comprises: the arterial puncture unit comprises a hollow puncture needle, a bending adjustment unit and a guide wire, wherein the hollow puncture needle is arranged in an artery of a patient, the bending adjustment unit can control the front part of the hollow puncture needle to bend, and the guide wire is arranged in the hollow puncture needle in a penetrating way; the vein auxiliary unit is arranged in a vein of a patient in a penetrating way and comprises a balloon and a luer connector, the hollow puncture needle can sequentially penetrate through an artery, a vein and the balloon of the patient at a puncture point, the guide wire extends into the balloon, and the balloon can wrap the guide wire after air suction and tightening; the covered stent is erected on the arterial and venous puncture passages of the patient. The utility model simplifies the complicated arteriovenous vascular access construction flow and utilizes the common saccule with lower cost to operate, thereby improving the technical popularization on the premise of effectively opening the deep venous arteriotomy.
Description
Technical Field
The utility model relates to the technical field of interventional medical devices, in particular to a percutaneous interventional deep venous arterialized ostomy and stent release system.
Background
Chronic limb ischemia (CLTI) is the most severe Peripheral Arterial Disease (PAD) caused by atherosclerosis, manifested by ischemic rest pain and tissue loss such as ulcers, gangrene, and even feet, and often faces amputation, causing great psychological and physiological burden to patients. Due to the increasing prevalence of atherosclerosis and type 2 diabetes, chronic limb threatening ischemia places an increasing burden on health and social care services worldwide.
For a CLTI patient how to perform the revascularization treatment, an alternative method is to bypass a surgical autologous venous graft, intervene in an endoluminal angioplasty or stent implantation, and the autologous venous graft is an open operation with a relatively large trauma, so that the endoluminal treatment is the preferred choice for many elderly patients, but since the endoluminal treatment only can open an occluded vessel with an outflow channel at the distal end. However, about 20% of patients lack sufficient distal access, and such patients are referred to as "forbesed" patients (non-option CLTI PATIENTS) because of the lack of opportunity for current lower limb revascularization therapy. In the face of the urgent need for treatment of "prestige" patients, deep Venous Arterialization (DVA) has become the last hope and attempt before major amputation. Percutaneous transluminal DVA has been the area of interest in CLTI areas, which reduces trauma from open surgery and provides a treatment opportunity for patients who are unable to perform transluminal angioplasty. Recently published clinical trials related to the system of treating severe limb ischemia pDVA by percutaneous deep venous arterialization in New England, lancet-J.P.in the top of medical journal have strongly supported the safety and effectiveness of the last treatment prior to amputation of the deep intravenous arterialization in the lumen by bypassing the arteries blocked by the legs and flushing oxygenated blood back to the feet through the veins.
Patients with CLT I who are "forgiving" cannot pass through traditional interventional endoluminal angioplasty due to lack of distal arterial vascular outflow tract, for such patients, only open surgery has been used to manually establish a pathway to deliver arterial blood flow to the venous vascular bed of the foot and "arterial" it to ensure perfusion of the foot tissue blood flow, thereby solving the symptoms of resting pain, promoting chronic wound healing, and simultaneously being able to combine with endoluminal venous valve destruction hybrid surgery. However, it is often difficult to tolerate open surgical treatment in patients with such atherosclerotic complications, typically CLTI. Thus, complete endoluminal treatment has been a technical focus, difficulty, of interest in this area. Therefore, the LimF l ow percutaneous deep venous arterialization pDVA system has been of interest since the advent of the prior art.
However, since LimF l ow covers a long-segment stent graft at a vein, according to the current stent graft technology, the stent is very prone to occlusion when the diameter is less than 0.5cm, especially at the tail end vein of a tiny limb, and the long-term patency rate of a blood vessel is seriously affected. According to the results of the two clinical trials of LimF l ow described above, up to about 30% of patients still face re-intervention and amputation. In addition, L imF l ow operating system comprises three sets of interventional instruments of arterial punch-through catheter ARC, venous guide wire capture V-Ceiver, venous valve knife Vector, two tectorial membrane brackets and at least one saccule expansion, and the cost is expensive when clinical application, certainly is huge economic burden to "no hope foot" patient, is difficult to get into extensive clinical application.
Disclosure of utility model
In view of the foregoing, it is desirable to provide a percutaneous interventional deep venous arteriosis stoma and stent delivery system that addresses the above-described problems.
A percutaneous interventional deep vein arteriosis stoma and stent delivery system comprising:
The arterial puncture unit comprises a hollow puncture needle, a bending adjustment unit and a guide wire, wherein the hollow puncture needle is arranged in an artery of a patient in a penetrating way, the bending adjustment unit can control the front part of the hollow puncture needle to bend, and the guide wire is arranged in the hollow puncture needle in a penetrating way;
The vein auxiliary unit is arranged in a vein of a patient in a penetrating way and comprises a balloon and a luer connector, the balloon can be inflated and pumped through the luer connector, the hollow puncture needle can sequentially penetrate through an artery, a vein and the balloon of the patient at a puncture point and stretch the guide wire into the balloon, and the guide wire can be wrapped after the balloon is pumped and tightened;
The covered stent is erected on the arterial and venous puncture passages of the patient.
In one embodiment, the bending adjustment unit comprises a catheter, the hollow puncture needle is arranged in the catheter in a penetrating way, and the head end and the tail end of the hollow puncture needle extend out of the catheter, wherein the front part of the catheter is provided with an adjustable bending part, and the adjustable bending part can control the front part of the hollow puncture needle to bend.
In one embodiment, the catheter is provided with a radiolabel at the forward end.
In one embodiment, the rear part of the catheter is also provided with a catheter flushing port, a bending operation handle and a hollow puncture needle inlet in sequence.
In one embodiment, the center of the balloon is in the same plane as the puncture point.
According to the percutaneous intervention deep vein arterialized ostomy and stent release system, the front part of the hollow puncture needle is controlled to bend through the bending adjusting unit, so that the hollow puncture needle enters the balloon and introduces the guide wire, the guide wire at the arterial end is captured after the balloon is pumped and tightened and guided into a vein, on the basis, the balloon is expanded to enlarge the ostomy, and the covered stent is implanted to maintain smoothness. The method simplifies the complicated arteriovenous vascular access construction process, and utilizes the common saccule with lower cost to operate, thereby improving the technical popularization on the premise of effectively opening the deep venous arteriotomy.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a percutaneous interventional deep vein arteriotomy and stent delivery system of the present utility model;
FIG. 2 is a schematic diagram of the arterial puncture unit of the present utility model;
fig. 3 is a schematic structural view of the venous auxiliary unit of the present utility model.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1-3, one embodiment of the present utility model provides a percutaneous interventional deep venous arteriosis stoma and stent delivery system, comprising:
The arterial puncture unit 1 comprises a hollow puncture needle 11, a bending adjustment unit 12 and a guide wire 13, wherein the hollow puncture needle 11 is arranged in an artery of a patient in a penetrating way, the bending adjustment unit 12 can control the front part of the hollow puncture needle 11 to bend, and the guide wire 13 is arranged in the hollow puncture needle 11 in a penetrating way;
The vein auxiliary unit 2 is arranged in a vein of a patient in a penetrating way, the vein auxiliary unit 2 comprises a balloon 21 and a luer connector 22, the balloon 21 can be inflated and pumped through the luer connector 22, the hollow puncture needle 11 can sequentially penetrate through an artery, a vein and the balloon 21 of the patient at a puncture point, the guide wire 13 extends into the balloon 21, and the guide wire 13 can be wrapped after the balloon 21 is pumped and tightened;
The covered stent is erected on the arterial and venous puncture passages of the patient. In this embodiment, the stent graft may be an existing stent graft for a short section of a self-expanding arteriole, such as an intravascular stent graft system from gol corporation, and has a treatment diameter in the range of 4.0-7.5mm, which is sufficient to cover and support an arteriovenous stoma, and the stent length is determined according to the ischemic plane of the patient.
The percutaneous intervention deep vein arterialized ostomy and stent release system controls the front part of the hollow puncture needle 11 to bend through the bending adjusting unit 12, so that the hollow puncture needle 11 enters the balloon 21 and is led into the guide wire 13, the balloon 21 is pumped and tightened to capture the guide wire 13 at the arterial end and is led into a vein, and on the basis, the balloon is expanded to enlarge the stoma, and the implanted covered stent is kept unobstructed. The method simplifies the complicated arteriovenous vascular access construction process, and utilizes the common saccule 21 with lower cost to operate, thereby improving the technical popularization on the premise of effectively opening the deep venous arteriotomy.
In an embodiment of the present utility model, the bending adjustment unit 12 includes a catheter 121, the hollow puncture needle 11 is disposed inside the catheter 121, and the head and tail ends of the hollow puncture needle 11 protrude outside the catheter 121, wherein the front portion of the catheter 121 has an adjustable bending portion capable of controlling the front portion of the hollow puncture needle 11 to bend.
In this embodiment, the bending-adjustable portion may be a flexible sleeve, etc., and the hollow puncture needle 11 can be driven to bend by controlling the bending of the bending-adjustable portion through the guide wire, so that the puncture angle can be adjusted to an optimal puncture angle. It should be noted that, the hollow puncture needle 11 and the catheter 121 are not assembled externally, but after the catheter 121 is positioned, the finger guide wire is withdrawn and then the hollow puncture needle 11 is inserted.
In one embodiment of the present utility model, the catheter 121 is provided with a radiolabel 122 at the forward end. Thus, the distal end position of the catheter 121 can be accurately observed by the radiolabel 122, facilitating the puncturing operation of the hollow puncture needle 11.
In one embodiment of the present utility model, the catheter 121 is further provided with a catheter flushing port 123, a bending operation handle 124 and a hollow puncture needle inlet 125 in sequence at the rear part. In this embodiment, the vessel can be flushed and exhausted through the catheter flushing port 123; the bending adjusting operation handle 124 is convenient for medical staff to hold and adjust the bending angle of the bending adjusting part; the hollow needle inlet 125 is provided to facilitate the insertion of the hollow needle 11 into the catheter 121.
In one embodiment of the present utility model, the center of the balloon 21 is in the same plane as the puncture point. In this way, the guide wire 13 can extend into the center position of the interior of the balloon 21, and the balloon 21 can completely wrap the guide wire 13 after air suction and tightening, so that the occurrence of mutual sliding or sliding when the balloon 21 and the guide wire 13 wrapped in the interior are pulled out of the vein segment is avoided.
The working process of the utility model is as follows:
1) For a patient needing deep vein arteriosclerosis in a cavity, performing conventional artery puncture under a local anesthesia condition, placing a sheath tube, positioning a guide wire 13 to the upper section of the occlusion break, and determining a puncture point;
2) The vein is inserted and punctured from the foot end, and ascends to the vicinity of the puncture point, then the balloon 21 is unfolded conventionally, and contrast agent is injected, so that the center of the balloon 21 and the puncture point are ensured to be on the same plane;
3) The adjustable bend of the arterial side adjusting catheter 121 is adjusted to a horizontal outlet by the front end radioactive marker 122, is level with the puncture point, and is loaded with the hollow puncture needle 11 and the internal guide wire 13 (0.014 guide wire) thereof;
4) Intravenous contrast agent, visualization balloon 21 position;
5) Puncturing near the puncture point, entering the venous balloon 21, and at the moment, the contrast agent is leaked outwards, namely the puncture is successful;
6) The guide wire 13 is placed along the hollow puncture needle 11 and enters the balloon 21, and the balloon 21 is tightened at the vein end;
7) The artery end continues to be pushed into the guide wire 13, and the balloon 21 and the guide wire 13 wrapped inside are pulled outside the vein segment;
8) Automatic pulse end at puncture point guide wire 13 section balloon 21 dilatation;
9) And placing a short-section covered stent on the expanded arteriovenous access by the automatic vein end.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The examples described above represent only a few embodiments of the present utility model and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (4)
1. A percutaneous interventional deep vein arteriotomy and stent delivery system, comprising:
The arterial puncture unit comprises a hollow puncture needle, a bending adjustment unit and a guide wire, wherein the hollow puncture needle is arranged in an artery of a patient in a penetrating way, the bending adjustment unit can control the front part of the hollow puncture needle to bend, and the guide wire is arranged in the hollow puncture needle in a penetrating way;
The vein auxiliary unit is arranged in a vein of a patient in a penetrating way and comprises a balloon and a luer connector, the balloon can be inflated and pumped through the luer connector, the hollow puncture needle can sequentially penetrate through an artery, a vein and the balloon of the patient at a puncture point and stretch the guide wire into the balloon, and the guide wire can be wrapped after the balloon is pumped and tightened;
the tectorial membrane bracket is erected on the arterial and venous puncture passages of the patient;
The bending adjusting unit comprises a catheter, the hollow puncture needle is arranged in the catheter in a penetrating mode, the head end and the tail end of the hollow puncture needle extend out of the catheter, the front portion of the catheter is provided with an adjustable bending portion, and the adjustable bending portion can control the front portion of the hollow puncture needle to bend.
2. A percutaneous interventional deep vein arterialized ostomy and stent delivery system according to claim 1, wherein the catheter is provided with a radio marker at its forward end.
3. The percutaneous interventional deep venous arteriosis stoma and stent delivery system of claim 2, wherein the catheter is further provided with a catheter flush port, a bend-adjusting operating handle and a hollow puncture needle inlet in sequence at the rear of the catheter.
4. The percutaneous interventional deep vein arterialized ostomy and stent delivery system according to claim 1, wherein the centre of said balloon is in the same plane as the puncture point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323094570.5U CN221949898U (en) | 2023-11-16 | 2023-11-16 | Percutaneous intervention deep vein arterialized ostomy and stent release system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323094570.5U CN221949898U (en) | 2023-11-16 | 2023-11-16 | Percutaneous intervention deep vein arterialized ostomy and stent release system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221949898U true CN221949898U (en) | 2024-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323094570.5U Active CN221949898U (en) | 2023-11-16 | 2023-11-16 | Percutaneous intervention deep vein arterialized ostomy and stent release system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221949898U (en) |
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2023
- 2023-11-16 CN CN202323094570.5U patent/CN221949898U/en active Active
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