Auxiliary device for aorta abdominalis stent implantation of sleeve horse rod structure
By designing the auxiliary device of the abdominal aortic bracket of the horsepower structure, the use of the structure of the circle and the grasp of the pipeline structure quickly grasp the short legs of the bracket, solve the problem of difficulty in grasping the existing technology, and improve the efficiency and safety of surgery. , Reduce radiation exposure time.
Patent Information
- Application Number
- CN202411824789.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-01-24
AI Technical Summary
During abdominal aortic coating stent implantation, it is difficult for the prior art to quickly and accurately grasp the short legs of the stent, resulting in an extended stent release time, increasing the risk of surgery, and increasing the exposure time of patients and medical staff in the radiation environment.
The auxiliary device for implantation of the abdominal aorta stent in the horsepower structure is designed, including the duct structure, the structure of the circle, and the pipe scratch structure. The ring structure is stretched out of the category in the duct structure and is set on the peripheral of the short legs of the bracket. The grasp of the pipe structure forms Z -shaped parts, penetrates the circular center of the round heart, and cooperates with the rapid grabbing and release of the short legs of the bracket.
This device can quickly and accurately grasp the short legs of the abdominal aortal arteries, improve the efficiency of surgery, reduce the risk of surgery, and reduce the exposure time of patients and medical staff in the radiation environment.
Smart Images
Figure CN119344931A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of interventional medical devices, in particular to an auxiliary device for abdominal aortic stent implantation with a lasso rod structure. Background Art
[0002] With the progress of social aging, vascular surgical diseases represented by abdominal aortic aneurysm and aortoiliac artery occlusion have become common clinical diseases. In recent years, endovascular interventional technology has gradually replaced open surgery and become the preferred treatment method for vascular surgical diseases.
[0003] Abdominal aortic stent grafting is the preferred endovascular treatment technology for abdominal aortic aneurysm. However, this technology still has operational technical challenges for complex cases.
[0004] The abdominal aorta is a "human" shaped artery, so the selected stent is also in the shape of a "human". The abdominal aortic covered stent implantation procedure first uses a guide wire to send the stent body from the right arterial incision of the human body to the "human" shaped head. The stent body initially has a long leg and a short leg structure, and the long leg part is left in the right arterial cavity of the human body and released smoothly. Then another guide wire is sent from the left arterial blood vessel of the human body to enter the short leg part for grabbing, and then dragged into the left arterial cavity of the human body to fix it, completing the overall release of the "human" shaped stent.
[0005] Due to the large difference between the diameter of the aneurysm cavity and the diameter of the short leg opening, the short leg of the stent will float freely in the aneurysm cavity and is difficult to be accurately grasped. Therefore, it is often difficult to establish a guidewire grasping path for the short leg part in a short time using the existing catheter guidewire matching technology, which prolongs the normal release time of the stent and increases the risk of surgery. At the same time, it will also cause patients and medical staff to be exposed to radiation for a long time, causing additional health problems. Summary of the invention
[0006] The purpose of the present invention is to provide a lasso-rod structure abdominal aortic stent implantation auxiliary device to solve the problems raised in the above-mentioned background technology.
[0007] To achieve the above object, the present invention provides the following technical solutions:
[0008] A lasso-rod structure abdominal aortic stent implantation auxiliary device, comprising:
[0009] A catheter structure, wherein the catheter structure is provided with a first inner cavity and a second inner cavity;
[0010] A ferrule structure is provided in a strip-shaped structure and is inserted into the first inner cavity. The ferrule structure can extend out of the first inner cavity and form an annular member, and the enclosed plane of the annular member is perpendicular to the catheter structure;
[0011] The tube grasping structure is provided in a hollow structure and is inserted into the second inner cavity. The tube grasping structure can extend out of the second inner cavity and form a Z-shaped piece. A guide wire is inserted into the inner side of the tube grasping structure.
[0012] The abdominal aortic stent implantation auxiliary device with a lasso rod structure as described above: a first marking structure is formed on the catheter structure at a position away from the lasso structure extending out from the catheter structure.
[0013] The above-mentioned abdominal aortic stent implantation auxiliary device with a lasso rod structure: a second marking structure is formed on the outer wall of the tube grasping structure at a side away from the catheter structure.
[0014] The above-mentioned abdominal aortic stent implantation auxiliary device with a lasso rod structure: the first marking structure and the second marking structure are both arranged in an "8" shape.
[0015] The abdominal aortic stent implantation auxiliary device with a lasso rod structure as described above: after the tube grasping structure is formed into a Z-shaped piece, two parallel sections are formed, and the length direction of the parallel sections is parallel to the length direction of the catheter structure.
[0016] In the abdominal aortic stent implantation auxiliary device with a lasso rod structure as described above, after the collar structure forms an annular member and the tube grasping structure forms a Z-shaped member, the end of the tube grasping structure can pass through the inner circumference of the annular member.
[0017] The above-mentioned abdominal aortic stent implantation auxiliary device with a lasso rod structure: the catheter structure (1) is also equipped with a base (9), the collar structure (2) passes through the base (9) and extends into the first inner cavity (7), and the base (9) is threadedly connected with a screw rod (10), which rotates relative to the base (9) to fix the position of the collar structure (2).
[0018] Compared with the prior art, the beneficial effects of the present invention are: the purpose of the present invention is to provide a lasso-rod structure abdominal aortic stent implantation auxiliary device to overcome or at least alleviate the main defects of the prior art, assist medical staff to quickly grasp the short legs of the abdominal aortic covered stent to complete the "human" shape release, improve surgical efficiency, reduce surgical risks, and reduce the exposure time of patients and medical staff in the radiation environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the structure of the lasso-rod structure abdominal aortic stent implantation assist device.
[0020] Figure 2 This is a schematic diagram of the structure of the lasso-rod structure abdominal aortic stent implantation assist device from another angle.
[0021] Figure 3 This is the structural explosion diagram of the abdominal aortic stent implantation assist device with a lasso rod structure.
[0022] Figure 4 This is a structural schematic diagram of the abdominal aortic stent implantation auxiliary device with a lasso rod structure, in which the loop structure and the tube grasping structure are inserted into the catheter structure.
[0023] Figure 5 for Figure 4 A magnified view of the structure at center.
[0024] In the figure: 1-catheter structure, 2-loop structure, 201-first identification line, 202-second identification line, 3-tube grasping structure, 4-grabbing guide wire, 5-first marking structure, 6-second marking structure, 7-first inner cavity, 701-lateral release port, 702-first through port, 8-second inner cavity, 801-guide outlet, 802-second through port, 9-base, 901-observation window, 10-screw, 11-catheter guide wire. DETAILED DESCRIPTION
[0025] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.
[0026] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.
[0027] In addition, in order to better illustrate the present application, numerous specific details are provided in the specific embodiments below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.
[0028] See also Figure 1-Figure 3 In an embodiment of the present invention, a lasso rod structure abdominal aortic stent implantation auxiliary device includes a catheter structure 1, a collar structure 2 and a tube grasping structure 3, specifically:
[0029] The catheter structure 1 is provided with a first inner cavity 7 and a second inner cavity 8 for placing the loop structure 2 and the tube grasping structure 3 respectively. The catheter structure 1 is flexible and can bend to adapt to the physiological structure of human blood vessels. A catheter guide wire 11 is provided through the center of the catheter structure 1.
[0030] The collar structure 2 is arranged in the first inner cavity 7 in a strip-shaped structure. The first inner cavity 7 is provided with a transverse release port 701 on one side of the front end of the catheter structure 1, and a first through port 702 is formed at the bottom of the catheter structure 1. The collar structure 2 can extend from the transverse release port 701 to form an annular member outside the front end of the catheter structure 1, and the plane surrounded by the annular member is perpendicular to the catheter structure 1. Specifically, one end of the collar structure 2 is fixed to the inner side of the first inner cavity 7, and a fixed section is formed on the inner side of the first inner cavity 7 from the transverse release port 701 to the first through port 702, and the other end extends from the first through port 702 to form a movable end. The length of the movable end of the collar structure 2 extending from the first through port 702 is controlled by push-pull operation, so that the collar structure 2 extends from the transverse release port 701 to form an annular member, thereby realizing the release and storage of the collar structure 2. At the same time, the length of the movable end of the collar structure 2 extending from the first through port 702 is controlled by push-pull operation, and the size of the annular member can be adjusted to meet different usage requirements. The ring structure 2 is made of elastic material, and two marking lines are set on the movable end. After the ring is formed, the effective diameter of the ring can be observed and determined by the positions of the two marking lines. The maximum effective diameter of the ring is adapted to the diameter of the aneurysm cavity and covers the free range of the short leg of the stent. By adjusting the size of the ring, it can be set on the outer periphery of the short leg so that it is no longer free.
[0031] The tube grasping structure 3 is provided in a hollow structure, and a grasping guide wire 4 is inserted into the inner side of the tube grasping structure 3. The tube grasping structure 3 is provided in the second inner cavity 8. The second inner cavity 8 is provided with a guide outlet 801 on the side wall of the catheter structure 1, and a second through-hole 802 is formed at the bottom of the catheter structure 1. The guide outlet 801 is located below the same side of the transverse release port 701 of the first inner cavity 7. The tube grasping structure 3 can extend out of the catheter structure 1 through the guide outlet 801 and form a Z-shaped member. After the tube grasping structure 3 forms a Z-shaped member, two parallel sections are formed. The front parallel section extends out of the lateral outside of the catheter structure 1 through the guide outlet 801 and is located on the same side as the annular member formed by the ferrule structure 2. The rear parallel section extends out of the bottom of the catheter structure 1 through the second through-hole 802. The length direction of the parallel section is parallel to the length direction of the catheter structure 1. After the collar structure 2 forms an annular member and the pipe grabbing structure 3 forms a Z-shaped member, the front end parallel section of the pipe grabbing structure 3 can be made to pass through the circumference of the annular member of the collar structure 2 by pushing and pulling the rear end parallel section of the pipe grabbing structure 3 .
[0032] Furthermore, the spacing between the two parallel sections matches the radius of the short leg of the stent, and when the collar structure 2 is tightly sleeved on the outer periphery of the short leg, the upper half of the pipe-grabbing structure 3 can penetrate the center of the annular member. A grasping guide wire 4 is arranged inside the pipe-grabbing structure 3, and the grasping guide wire 4 can slide relatively in the pipe-grabbing structure 3. When the pipe-grabbing structure 3 penetrates the short leg of the stent to a suitable position, the grasping guide wire 4 can be grasped and fixed by the fixed guide wire at the other end of the stent from the inside of the short leg of the stent, and relatively detached from the pipe-grabbing structure 3.
[0033] For further information, see Figure 4 and Figure 5 The catheter structure 1 is also fixedly mounted with a base 9. The fixed section end and the movable end of the ferrule structure 2 respectively penetrate the base 9 and extend into the first inner cavity 7. The fixed section end is fixedly connected to the base 9, and the movable end can be pushed, pulled and slid in the base 9. A screw 10 is threadedly connected to one side of the through hole of the movable end of the base 9. The screw 10 rotates relative to the base 9 to limit the sliding position of the movable end of the ferrule structure 2. An observation window 901 is provided at the contact point between the base 9 and the movable end of the ferrule structure 2, and two marking lines are provided on the movable end of the ferrule structure 2 extending from the base 9. When the movable end of the ferrule structure 2 is pushed and pulled to adjust the size of the ring, when the first marking line 201 moves into the observation window 901, it means that the inner side of the circumference of the ring matches the outer circumference of the short leg of the bracket, and the ring can be just set on the outer circumference of the short leg of the bracket; when the second marking line 202 moves into the observation window 901, it means that the circumference of the ring reaches the maximum effective diameter.
[0034] A first marking structure 5 is arranged on the other side of the transverse release port 701 of the catheter structure 1 away from the first inner cavity 7. The first marking structure 5 is arranged in a three-dimensional structure in the shape of an "8". The first marking structure 5 is made of a material that can be observed by an angiography system or an ultrasound system. It presents a three-dimensional "8" shape when observed from the front and a three-dimensional "l" shape when observed from the side. When the catheter structure 1 reaches the target area from the left artery of the human body, the medical staff observes the outer wall of the catheter through the angiography equipment or the ultrasound equipment. When the "8"-shaped mark is seen, it means that the transverse release port is not facing the free area of the short leg of the stent and is not suitable for releasing the loop structure 2; when the "l"-shaped mark is seen, it means that the transverse release port is facing the free area of the short leg of the stent and is suitable for releasing the loop structure 2.
[0035] A second marking structure 6 is formed on the side of the front end outer wall of the tube grasping structure 3 away from the catheter structure 1. The second marking structure 6 is arranged in an "8"-shaped three-dimensional structure. When the ring structure 2 is successfully sleeved on the circumference of the short leg so that it is no longer free, the lower half of the parallel section at the rear end of the Z-shaped piece is slightly pushed forward to expose the end portion with the mark. Medical staff observe the shape of the mark through angiography or ultrasound equipment. When the "8"-shaped mark is seen, it means that the direction of the tube grasping structure 3 deviates from the center position of the ring circle. The lower half of the Z-shaped piece is rotated until the "l"-shaped mark is seen, which means that the direction of the tube grasping structure 3 can just pass through the center position of the ring circle, and then the tube grasping is pushed forward to improve efficiency.
[0036] The purpose of the present invention is to provide a lasso-rod structure abdominal aortic stent implantation auxiliary device to overcome or at least alleviate the main defects of the prior art, assist medical personnel to quickly grasp the short legs of the abdominal aortic covered stent to complete the "human" shape release, improve surgical efficiency, reduce surgical risks, and reduce the exposure time of patients and medical personnel in the radiation environment.
[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A lasso-rod structure abdominal aortic stent implantation assisting device, characterized in that: include: A catheter structure (1), wherein the catheter structure (1) is provided with a first inner cavity (7) and a second inner cavity (8); The collar structure (2) is arranged in a strip-shaped structure and is inserted into the first inner cavity (7). The collar structure (2) can extend out of the first inner cavity (7) and form an annular member, and the enclosed plane of the annular member is perpendicular to the catheter structure (1); The tube grasping structure (3) is provided in a hollow structure and is inserted into the second inner cavity (8). The tube grasping structure (3) can extend out of the second inner cavity (8) and form a Z-shaped piece. A grasping guide wire (4) is inserted into the inner side of the tube grasping structure (3).
2. The abdominal aortic stent implantation auxiliary device with a lasso rod structure according to claim 1, characterized in that: A first marking structure (5) is formed on the catheter structure (1) at a position extending away from the ferrule structure (2) on the catheter structure (1).
3. The abdominal aortic stent implantation auxiliary device with a lasso rod structure according to claim 2, characterized in that: A second marking structure (6) is formed on the outer wall of the tube grasping structure (3) at a side away from the catheter structure (1).
4. The abdominal aortic stent implantation auxiliary device with a lasso rod structure according to claim 3, characterized in that: The first marking structure (5) and the second marking structure (6) are both arranged in a three-dimensional structure in the shape of an "8".
5. The abdominal aortic stent implantation auxiliary device with a lasso rod structure according to claim 1, characterized in that: After the pipe grasping structure (3) is formed into a Z-shaped piece, two parallel sections are formed, and the length direction of the parallel sections is parallel to the length direction of the catheter structure (1).
6. The abdominal aortic stent implantation auxiliary device with a lasso rod structure according to claim 5, characterized in that: After the collar structure (2) forms an annular member and the pipe grabbing structure (3) forms a Z-shaped member, the end of the pipe grabbing structure (3) can pass through the inside of the circumference of the annular member.
7. The abdominal aortic stent implantation auxiliary device with a lasso rod structure according to claim 1, characterized in that: The catheter structure (1) is also provided with a base (9), the ferrule structure (2) passes through the base (9) and extends into the first inner cavity (7), and a screw rod (10) is threadedly connected to the base (9), and the screw rod (10) rotates relative to the base (9) to fix the position of the ferrule structure (2).