A device for communicating between the femoral artery and the brachial artery

Abstract

The utility model relates to a kind of intercommunication devices for femoral artery and brachial artery, belong to medical instrument technical field, solve the problem that guide wire needs to traverse two arterial blood vessels in prior art, and is inserted into sheath tube, and the problem of difficult operation.The utility model includes first access unit and second access unit, the first access unit includes first lead and first interconnection component, the second access unit includes second lead and second interconnection component, the first interconnection component is arranged at the end of the first lead, and the second interconnection component is arranged at the end of the second lead.The intercommunication device of the utility model does not need to operate guide wire to enter catheter / sheath tube cavity in blood vessel cavity, and it is simple to operate, short in operation time, and high in operation success rate.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a device for connecting the femoral artery and the brachial artery. Background Technology

[0002] Interventional surgery, a minimally invasive surgical procedure guided by medical imaging equipment and using specialized catheters, guidewires, and other interventional devices to diagnose and treat internal conditions, has advantages such as minimal trauma, rapid recovery, and fewer complications. It has now become one of the three major medical disciplines alongside internal medicine and surgery.

[0003] Currently, with advancements in interventional surgical techniques and equipment, some cases that were previously difficult to treat with intervention can now be addressed through interventional surgery. However, some special cases still require experienced surgeons to spend a significant amount of time during the procedure to achieve the desired therapeutic outcome.

[0004] For aortic dissection involving the left subclavian artery, a pathway from the femoral artery to the left brachial artery needs to be established. This requires an experienced surgeon to superselectively guide the guidewire into a catheter with a diameter of only 2-3 mm. Specifically, the pathway requires maneuvering the guidewire into the smaller lumen (catheter / sheath) within the larger lumen (vascular lumen) and exiting it externally to establish guidewire guidance for subsequent procedures. This technique is clinically known as the "fishing" technique, which aptly describes its difficulty. The guidewire needs to connect two vascular puncture points and be inserted into the sheath, making the procedure challenging, time-consuming, and in some patients, the pathway cannot be successfully established, leading to surgical failure. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a device for connecting the femoral artery and the brachial artery, which solves the problem that the guidewire needs to pass through two arteries and be inserted into the sheath in the prior art, which is difficult to operate and may lead to surgical failure.

[0006] To achieve the aforementioned objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a device for connecting the femoral artery and the brachial artery, including a first access unit and a second access unit. The first access unit includes a first lead and a first interconnection component. The second access unit includes a second lead and a second interconnection component. The first interconnection component is disposed at the end of the first lead, and the second interconnection component is disposed at the end of the second lead.

[0008] The first interconnecting component is a magnetic component, and the second interconnecting component is an iron component; or the first interconnecting component is an iron component, and the second interconnecting component is a magnetic component; the first interconnecting component and the second interconnecting component can be magnetically attracted to each other and automatically connect.

[0009] The first interconnecting component and the second interconnecting component can meet and automatically connect in the blood vessel lumen, and can connect the first access unit and the second access unit to each other, so as to establish a connecting passage across two arteries for subsequent operations without the need to operate a guidewire to enter the catheter or sheath lumen in the blood vessel lumen.

[0010] Furthermore, the first interconnect component includes a first connecting block, a first locking tooth, and a first locking slot. The first connecting block is connected to the first lead. The first locking tooth is disposed on the first connecting block. There are multiple first locking teeth, and the first locking slot is formed between two adjacent first locking teeth.

[0011] Furthermore, the second interconnect component includes a second connecting block, a second locking tooth, and a second locking slot. The second connecting block is connected to the second lead wire. The second locking tooth is disposed on the second connecting block. There are multiple second locking teeth, and two adjacent second locking teeth form the second locking slot. The first locking tooth can connect to the second locking slot, and the second locking tooth can also connect to the first locking slot, thereby connecting the first interconnect component and the second interconnect component.

[0012] Furthermore, it also includes a catheter unit, which is sleeved on the first access unit and / or the second access unit. The catheter unit is used for percutaneous insertion into an artery to provide a channel for the first access unit and / or the second access unit. The catheter unit includes a tube body and an expansion cavity, which is disposed on the inner wall of the tube body.

[0013] Furthermore, the expansion cavity is an annular airbag, which can expand towards the central axis of the tube body. The outer wall of the expansion cavity can connect with the outer walls of the first connecting block and the second connecting block, and push the first interconnecting component and the second interconnecting component towards the central axis of the expansion cavity, and enable the first locking tooth to be fully connected with the second locking groove or the second locking tooth to the first locking groove.

[0014] Furthermore, the first slot includes a sliding groove surface and an engagement groove surface, both of which are planes, and the included angle between the sliding groove surface and the engagement groove surface is less than 90°; the second tooth includes a sliding tooth surface and an engagement tooth surface, and the included angle between the engagement groove surface and the axis of the first lead wire is less than 90°.

[0015] Furthermore, the first card slot and the second card slot have the same structure, the first card tooth and the second card tooth have the same structure, and the tooth shape of the second card tooth is the same as the cross-sectional shape of the first card slot.

[0016] Furthermore, the first interconnect component includes a first pillar and a bump groove. The first pillar is connected to the first lead. Multiple bump grooves are provided and are sequentially arranged on the first pillar along the axial direction of the first pillar.

[0017] Furthermore, the second interconnect component includes a second pillar and a bump. The second pillar is connected to the second lead. There are multiple bumps, which are sequentially arranged on the second pillar along the axial direction of the second pillar. The outer surface of the bump is the same as the inner surface of the bump groove. Under magnetic attraction, the bump can be automatically and completely inserted into the bump groove.

[0018] Furthermore, the bump groove is a semi-annular groove, and the bump groove, the first column, and the first lead are coaxial; the bump is an annular flange, and the bump, the second column, and the second lead are coaxial.

[0019] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0020] (1) The first interconnecting component of this utility model is a magnetic component and the second interconnecting component is an iron component; or the first interconnecting component is an iron component and the second interconnecting component is a magnetic component, and the first interconnecting component can magnetically attract the second interconnecting component to realize the automatic connection of the first interconnecting component and the second interconnecting component; in the process of establishing the connection path, the connection device of this utility model does not require the guide wire to enter the catheter / sheath lumen in the blood vessel lumen, the operation is simple, the operation time is short, and the operation success rate is high;

[0021] (2) The expansion cavity of this utility model can expand towards the central axis of the tube body. The outer wall of the expansion cavity can be connected with the outer walls of the first connecting block and the second connecting block, and push the first interconnecting component and the second interconnecting component towards the central axis. It can also make the first tooth and the second slot or the second tooth and the first slot fully connected. The connection area between the first tooth and the second slot or the second tooth and the first slot is large and the connection is stable.

[0022] (3) The angle between the meshing groove surface and the axis of the first lead wire is less than 90°. After the first tooth and the second groove or the second tooth and the first groove are connected, the first lead wire is pulled away from the second lead wire. The meshing tooth surface is connected to the meshing groove surface, and the meshing groove surface provides a component force to the meshing tooth surface in the direction of the first connecting block. The first interconnecting component pulls the second interconnecting component in the direction of the first interconnecting component, further preventing the first interconnecting component from separating from the second interconnecting component.

[0023] (4) Under the magnetic attraction, the bump of this utility model can be automatically and completely inserted into the bump groove to realize the automatic and complete connection between the first interconnect component and the second interconnect component, and the first lead wire and the second lead wire are coaxial; when the first lead wire is pulled away from the second lead wire, there is no twisting between the first interconnect component and the second interconnect component, further preventing the first interconnect component and the second interconnect component from separating.

[0024] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the communication device in Example 1;

[0026] Figure 2 This is a schematic diagram of the axial cross-sectional structure of the connecting device in Example 2;

[0027] Figure 3 This is a schematic diagram of the overall structure of the communication device in Example 3.

[0028] Figure label:

[0029] 1-First lead wire; 2-First interconnecting assembly; 3-Second lead wire; 4-Second interconnecting assembly; 5-Conduit unit; 21-First connecting block; 22-First locking tooth; 23-First locking groove; 24-First column; 25-Protrusion groove; 41-Second connecting block; 42-Second locking tooth; 43-Second locking groove; 44-Second column; 45-Protrusion; 51-Tube body; 52-Expansion cavity; 231-Sliding groove surface; 232-Interlocking groove surface; 421-Sliding tooth surface; 422-Interlocking tooth surface. Detailed Implementation

[0030] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All inventions utilizing the concept of this utility model are protected.

[0031] Example 1

[0032] A specific embodiment of this utility model is as follows: Figure 1As shown, a connection device for the femoral artery and brachial artery (hereinafter referred to as the connection device) includes a first access unit and a second access unit. The first access unit includes a first lead 1 and a first interconnecting component 2. The second access unit includes a second lead 3 and a second interconnecting component 4. The first interconnecting component 2 is disposed at the end of the first lead 1, and the second interconnecting component 4 is disposed at the end of the second lead 3. The first interconnecting component 2 and the second interconnecting component 4 can be connected to each other, thereby connecting the first access unit and the second access unit to each other, thus constituting the connection device of this embodiment.

[0033] Preferably, the first interconnecting component 2 is a magnetic component and the second interconnecting component 4 is an iron component; or the first interconnecting component 2 is an iron component and the second interconnecting component 4 is a magnetic component, the first interconnecting component 2 and the second interconnecting component 4 can be magnetically attracted to each other, and the first interconnecting component 2 and the second interconnecting component 4 can be automatically connected.

[0034] In use, medical personnel insert the first access unit, guided by the first interconnecting component 2, through the skin into the femoral artery. Then, they insert the second access unit, guided by the second interconnecting component 4, into the carotid artery, ensuring that the first and second interconnecting components 2 and 4 meet within the blood vessel lumen. Connecting the first and second interconnecting components 2 and 4 establishes a guidewire guidance device that traverses the two arteries, facilitating subsequent procedures. Compared to the "fishing" operation of existing technologies, this embodiment's connection device eliminates the need for guidewire insertion into the catheter / sheath lumen within the blood vessel lumen during the connection process. This simplifies the operation, shortens the procedure time, and increases the success rate.

[0035] Preferred, such as Figure 1 As shown, the first interconnect component 2 includes a first connecting block 21, a first locking tooth 22, and a first locking slot 23. The first connecting block 21 is connected to the first lead 1. The first locking tooth 22 is disposed on the first connecting block 21, and there are multiple first locking teeth 22. The first locking slot 23 is formed between two adjacent first locking teeth 22. The second interconnect component 4 includes a second connecting block 41, a second locking tooth 42, and a second locking slot 43. The second connecting block 41 is connected to the second lead 3. The second locking tooth 42 is disposed on the second connecting block 41, and there are multiple second locking teeth 42. The second locking slot 43 is formed between two adjacent second locking teeth 42. The first locking tooth 22 can connect to the second locking slot 43, and the second locking tooth 42 can also connect to the first locking slot 23, thereby connecting the first interconnect component 2 and the second interconnect component 4.

[0036] Preferably, the first slot 23 and the second slot 43 have the same structure, and the first tooth 22 and the second tooth 42 have the same structure. The first slot 23 includes a sliding groove surface 231 and an engagement groove surface 232, both of which are planar, and the included angle between the sliding groove surface 231 and the engagement groove surface 232 is less than 90°. The tooth profile of the second tooth 42 is the same as the cross-sectional shape of the first slot 23. The second tooth 42 includes a sliding tooth surface 421 and an engagement tooth surface 422. The angle between the engagement groove surface 232 and the axis of the first lead wire 1 is less than 90°. After the first tooth 22 is connected to the second slot 43 or the second tooth 42 is connected to the first slot 23, the first lead wire 1 is pulled away from the second lead wire 3. The engagement tooth surface 422 is connected to the engagement groove surface 232, and the engagement groove surface 232 provides a component force to the engagement tooth surface 422 in the direction of the first connecting block 21. The first interconnecting component 2 pulls the second interconnecting component 4 in the direction of the first interconnecting component 2, further preventing the first interconnecting component 2 from separating from the second interconnecting component 4.

[0037] Compared with the prior art, the first interconnecting component 2 is disposed at the end of the first lead 1, and the second interconnecting component 4 is disposed at the end of the second lead 3. The first interconnecting component 2 and the second interconnecting component 4 can be connected, thereby connecting the first access unit and the second access unit to each other, forming the connection device of this embodiment. Compared with the "fishing" operation of the prior art, the connection device of this embodiment does not require the guide wire to enter the catheter / sheath lumen in the blood vessel lumen during the process of establishing the connection path. The operation is simple, the operation time is short, and the operation success rate is high. The first interconnecting component 2 is a magnetic component, and the second interconnecting component 4 is an iron component; or the first interconnecting component 2 is an iron component, and the second interconnecting component 4 is a magnetic component. The first interconnect component 2 can magnetically attract the second interconnect component 4, and the first interconnect component 2 and the second interconnect component 4 can automatically connect; the angle between the engagement groove surface 232 and the axis of the first lead 1 is less than 90°. After the first tooth 22 connects to the second slot 43 or the second tooth 42 connects to the first slot 23, the first lead 1 is pulled away from the second lead 3. The engagement tooth surface 422 connects to the engagement groove surface 232, and the engagement groove surface 232 provides a component force to the engagement tooth surface 422 in the direction of the first connecting block 21. The first interconnect component 2 pulls the second interconnect component 4 towards the first interconnect component 2, further preventing the first interconnect component 2 from separating from the second interconnect component 4.

[0038] Example 2:

[0039] When the first interconnect component 2 is connected to the second interconnect component 4, some of the first teeth 22 and the second slot 43 or some of the second teeth 42 and the first slot 23 may not be connected. The connection area between the first teeth 22 and the second slot 43 or the second teeth 42 and the first slot 23 is small, and the connection is not stable.

[0040] like Figure 1As shown, in order to make the connection between the first interconnecting component 2 and the second interconnecting component 4 more stable, and to increase the connection area between the first locking tooth 22 and the second locking groove 43 or the second locking tooth 42 and the first locking groove 23, the connecting device of embodiment 2 adds a catheter unit 5. The catheter unit 5 is sleeved on the first access unit and / or the second access unit. The catheter unit 5 is used for percutaneous puncture insertion into an artery to provide a channel for the first access unit and / or the second access unit.

[0041] Preferred, such as Figure 2 As shown, the conduit unit 5 includes a tube body 51 and an expansion chamber 52, which is disposed on the inner wall of the tube body 51. The volume of the expansion chamber 52 can decrease after degassing and increase after inflation. Preferably, the expansion chamber 52 is an annular air bladder. During inflation, the expansion chamber 52 can expand towards the central axis of the tube body 51, and the outer wall of the expansion chamber 52 can connect with the outer walls of the first connecting block 21 and the second connecting block 41, pushing the first interconnecting component 2 and the second interconnecting component 4 towards the central axis. This allows the first locking tooth 22 to fully connect with the second locking groove 43 or the second locking tooth 42 to the first locking groove 23, resulting in a large connection area and a stable connection.

[0042] Compared with Embodiment 1, the expansion cavity 52 can expand towards the central axis of the tube body 51. The outer wall of the expansion cavity 52 can connect with the outer walls of the first connecting block 21 and the second connecting block 41, and push the first interconnecting component 2 and the second interconnecting component 4 towards the central axis. It can also make the first locking tooth 22 and the second locking groove 43 or the second locking tooth 42 and the first locking groove 23 completely connected. The connection area between the first locking tooth 22 and the second locking groove 43 or the second locking tooth 42 and the first locking groove 23 is large and the connection is stable.

[0043] Example 3:

[0044] In order for the first interconnect component 2 and the second interconnect component 4 to be automatically and fully connected, such as Figure 3 As shown, Embodiment 3 improves upon Embodiment 1 by modifying the first interconnect component 2 and the second interconnect component 4, enabling the first interconnect component 2 and the second interconnect component 4 to be automatically and fully connected.

[0045] Preferred, such as Figure 3As shown, the first interconnect component 2 includes a first pillar 24 and a bump groove 25. The first pillar 24 is connected to the first lead 1. Multiple bump grooves 25 are arranged sequentially on the first pillar 24 along its axial direction. The second interconnect component 4 includes a second pillar 44 and bumps 45. The second pillar 44 is connected to the second lead 3. Multiple bumps 45 are arranged sequentially on the second pillar 44 along its axial direction. The outer surface of the bump 45 is the same as the inner surface of the bump groove 25. Under magnetic attraction, the bump 45 can automatically and completely insert into the bump groove 25, achieving an automatic and complete connection between the first interconnect component 2 and the second interconnect component 4.

[0046] Preferably, the bump groove 25 is a semi-annular groove, and the bump groove 25, the first pillar 24, and the first lead 1 are coaxial. The bump 45 is an annular flange, and the bump 45, the second pillar 44, and the second lead 3 are coaxial.

[0047] Compared to Embodiment 1, under magnetic attraction, the protrusion 45 can automatically and completely insert into the protrusion slot 25, realizing automatic and complete connection between the first interconnect component 2 and the second interconnect component 4, and the first lead 1 and the second lead 3 are coaxial. Pulling the first lead 1 away from the second lead 3 does not cause any twisting between the first interconnect component 2 and the second interconnect component 4, further preventing the first interconnect component 2 and the second interconnect component 4 from disengaging.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for connecting the femoral artery and the brachial artery, characterized in that, It includes a first access unit, a second access unit and a conduit unit (5). The first access unit includes a first lead (1) and a first interconnect component (2). The second access unit includes a second lead (3) and a second interconnect component (4). The first interconnect component (2) is disposed at the end of the first lead (1), and the second interconnect component (4) is disposed at the end of the second lead (3). The first interconnecting component (2) can magnetically attract the second interconnecting component (4) and automatically connect; the first interconnecting component (2) and the second interconnecting component (4) can meet and automatically connect in the blood vessel lumen, and can connect the first access unit and the second access unit to each other, so as to establish a connecting passage across two arteries for subsequent operations without the need to operate the guide wire to enter the catheter or sheath lumen in the blood vessel lumen; the first interconnecting component (2) includes a first connecting block (21), a first locking tooth (22) and a first locking groove (23), and the second interconnecting component (4) includes a second connecting block (41), a second locking tooth (42) and a second locking groove (43); The catheter unit (5) is sleeved on the first access unit and / or the second access unit. The catheter unit (5) is used for percutaneous insertion into an artery to provide a channel for the first access unit and / or the second access unit. The catheter unit (5) includes a tube body (51) and an expansion cavity (52). The expansion cavity (52) is disposed on the inner wall of the tube body (51). The expansion cavity (52) can expand towards the central axis of the tube body (51). The outer wall of the expansion cavity (52) can connect with the outer walls of the first connecting block (21) and the second connecting block (41), and push the first interconnecting component (2) and the second interconnecting component (4) towards the central axis of the expansion cavity (52). It can also connect the first locking tooth (22) with the second locking groove (43) or the second locking tooth (42) with the first locking groove (23).

2. The device for communication between the femoral artery and the brachial artery according to claim 1, characterized in that, The first connecting block (21) is connected to the first lead wire (1), and the first locking tooth (22) is disposed on the first connecting block (21). There are multiple first locking teeth (22), and the first slot (23) is formed between two adjacent first locking teeth (22).

3. The device for communication between the femoral artery and the brachial artery according to claim 2, characterized in that, The second connecting block (41) is connected to the second lead wire (3). The second tooth (42) is disposed on the second connecting block (41). There are multiple second teeth (42), and two adjacent second teeth (42) form the second slot (43). The first tooth (22) can be connected to the second slot (43), and the second tooth (42) can also be connected to the first slot (23), thereby connecting the first interconnect component (2) and the second interconnect component (4).

4. The device for communication between the femoral artery and the brachial artery according to claim 1, characterized in that, The expansion chamber (52) is an annular airbag.

5. The device for connecting the femoral artery and brachial artery according to claim 3, characterized in that, The first slot (23) includes a sliding groove surface (231) and a meshing groove surface (232), both of which are planes and the included angle between the sliding groove surface (231) and the meshing groove surface (232) is less than 90°; the second tooth (42) includes a sliding tooth surface (421) and a meshing tooth surface (422), the included angle between the meshing groove surface (232) and the axis of the first lead wire (1) is less than 90°.

6. The device for connecting the femoral artery and brachial artery according to claim 1, characterized in that, The first interconnect component (2) is a magnetic component and the second interconnect component (4) is an iron component; or the first interconnect component (2) is an iron component and the second interconnect component (4) is a magnetic component.

7. The device for connecting the femoral artery and brachial artery according to claim 1, characterized in that, The first interconnect component (2) includes a first column (24) and a bump groove (25). The first column (24) is connected to the first lead (1). Multiple bump grooves (25) are provided and are arranged sequentially on the first column (24) along the axial direction of the first column (24).

8. The device for connecting the femoral artery and brachial artery according to claim 7, characterized in that, The second interconnect component (4) includes a second pillar (44) and a bump (45). The second pillar (44) is connected to the second lead (3). There are multiple bumps (45), which are arranged sequentially on the second pillar (44) along the axial direction of the second pillar (44). The outer surface of the bump (45) is the same as the inner surface of the bump groove (25). Under magnetic attraction, the bump (45) can automatically and completely insert into the bump groove (25).

9. The device for connecting the femoral artery and brachial artery according to claim 8, characterized in that, The bump groove (25) is a semi-annular groove, and the bump groove (25), the first column (24) and the first lead wire (1) are coaxial; the bump (45) is an annular flange, and the bump (45), the second column (44) and the second lead wire (3) are coaxial.

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