WO2024037357A1 - 导管支撑装置和管腔介入系统 - Google Patents

导管支撑装置和管腔介入系统 Download PDF

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Publication number
WO2024037357A1
WO2024037357A1 PCT/CN2023/111220 CN2023111220W WO2024037357A1 WO 2024037357 A1 WO2024037357 A1 WO 2024037357A1 CN 2023111220 W CN2023111220 W CN 2023111220W WO 2024037357 A1 WO2024037357 A1 WO 2024037357A1
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WO
WIPO (PCT)
Prior art keywords
catheter
chain
engaging
guide rail
flexible support
Prior art date
Application number
PCT/CN2023/111220
Other languages
English (en)
French (fr)
Inventor
段海龙
邵萌
赵磊
刘华根
李小明
Original Assignee
生一科技(北京)有限公司
清大生一(厦门)医疗科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 生一科技(北京)有限公司, 清大生一(厦门)医疗科技有限公司 filed Critical 生一科技(北京)有限公司
Publication of WO2024037357A1 publication Critical patent/WO2024037357A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M2025/0059—Catheters; Hollow probes characterised by structural features having means for preventing the catheter, sheath or lumens from collapsing due to outer forces, e.g. compressing forces, or caused by twisting or kinking
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02—Holding devices, e.g. on the body
    • A61M2025/028—Holding devices, e.g. on the body having a mainly rigid support structure

Definitions

  • the present invention relates to the technical field of interventional therapy, and specifically to a catheter support device and a lumen intervention system.
  • Interventional therapy refers to inserting a catheter into the blood vessel that controls the tumor, injecting chemotherapy drugs, so that the drugs can accurately target the treatment, or blocking (embolization) the blood vessels to cut off the blood supply of the tumor cells, making them " Starve to death and necrosis. Facts have shown that this therapy can be used for vascular interventional treatment of almost all solid cancers.
  • the guidewire operation chooses the guidewire operation, and in the thinner blood vessels that need to be entered when approaching the tissue to be intervened, choose a microguide with a smaller diameter. wire to operate.
  • the catheter or microcatheter uses the guiding function of the guidewire or microguidewire to move along the catheter or microcatheter in the blood vessel until it reaches the tissue to be intervened.
  • the catheter since the catheter has a certain degree of flexibility, how to prevent the bending deformation of the catheter from affecting the smooth progress of interventional therapy is an issue worth studying.
  • the purpose of the present invention is to provide a catheter support device and a lumen intervention system, which have a simple structure and are easy to operate, and can well support the catheter to ensure the smooth completion of the interventional surgery.
  • the present invention provides a catheter support device.
  • the catheter support device includes a plurality of flexible support strips.
  • the flexible support strips are formed with a plurality of engaging units spaced apart along the length direction of the strips.
  • the plurality of flexible support strips are The engaging units of the flexible support strip are at least partially engaged with each other to collectively define a catheter placement cavity for accommodating the catheter.
  • the flexible support bar is chain-shaped and includes a plurality of chain links, and a pin is commonly connected between adjacent chain links;
  • the flexible support strip is chain-shaped and includes a flexible belt and a plurality of chain links, and the plurality of chain links are spaced on the flexible belt; or, the flexible support strip is integrally formed. Chain-like structure.
  • the chain link includes a chain link plate and two meshing units spaced apart along the width direction of the flexible support bar, and the chain link plate and the connected meshing unit jointly define a There are opening slots for placement, In the two engaged flexible support strips, a plurality of the placement opening slots are connected to jointly form the catheter placement cavity.
  • the number of the flexible support bars is two, and the engaging units of the two flexible support bars include: an engaging base plate vertically arranged on the link plate; and engaging teeth , protruding from the engaging base plate along the length direction of the strip; wherein, the engaging teeth are curved and extend around to form an engaging protruding portion and an engaging recessed portion.
  • the engaging unit of one of the two flexible support bars includes an engaging base plate vertically arranged on the link plate and an engaging protrusion extending vertically from the engaging base plate.
  • the engaging unit of the other includes an engaging base plate vertically arranged on the link plate and an engaging recessed portion formed on the engaging base plate, the engaging recessed portion and the engaging protruding portion suitable.
  • the conduit support device further includes a conduit chain guide rail for installing the flexible support strip.
  • the conduit chain guide rail includes a main base guide rail and two bifurcated ends of the main base guide rail. A bifurcated base guide rail.
  • the flexible support strip includes a flexible conduit chain bifurcated section before meshing and a rigid conduit chain engaging section after meshing, and the conduit chain engaging section is at least partially located within the main seat guide rail, The bifurcated section of the conduit chain is at least partially located within the bifurcated base guide rail.
  • the bifurcated base guide rail includes a bifurcated front end connected to the main base guide rail, and the bifurcated front end is formed with a guide protrusion extending toward the main base guide rail, so that the two engaged parts The meshing units of each chain are separated and enter the corresponding fork base guide rail.
  • the bifurcated front end is also formed with a catheter insertion hole for inserting the catheter, and the catheter insertion hole is coaxially arranged with the inner cavity of the main seat guide rail, so that the catheter can Insert into the catheter placement cavity from the catheter placement hole.
  • the main seat rail is formed with a rail lumen, and the catheter placement cavity is located outside or inside the rail lumen.
  • the present invention also provides a lumen intervention system, which includes the above-mentioned catheter support device.
  • the lumen intervention system includes a system fixed base and a sliding platform slidably installed on the system fixed base, and the catheter support device is installed on the sliding platform.
  • the lumen intervention system further includes a support strip braking assembly for fixing the flexible support strip, and the support strip braking assembly includes:
  • a thumbwheel a limited groove is formed on the chain link, and a plurality of circumferentially distributed thumbwheel limiting teeth that can be inserted into the limited groove are formed on the paddle wheel;
  • the thumbwheel is rotatably mounted on the brake and can switch between a braking state and a free-rotating state.
  • the catheter support device and lumen intervention system provided by the present invention adopt flexible support strips.
  • the engaging units on the flexible support strips can engage multiple flexible support strips and form a catheter placement cavity.
  • the cavity can accommodate the catheter, wrap the catheter, and ensure support for the catheter. It has a certain anti-bending torque effect, has a simple structure, is easy to operate, and ensures the smooth completion of interventional surgeries.
  • Figure 1 is a schematic structural diagram of a catheter support device provided by a specific embodiment of the present invention.
  • Figure 2 is a partial structural schematic diagram of Figure 1, showing the conduit chain meshing section and the conduit chain bifurcation section;
  • Figure 3 is a structural schematic diagram of a flexible support bar provided by a specific embodiment of the present invention.
  • Figure 4 is a schematic structural diagram of Figure 3 from different perspectives, showing the chain links;
  • Figure 5 is a partial structural diagram of Figure 4 from different perspectives, showing a set of meshed chain links
  • Figure 6 is a structural schematic diagram of a flexible support bar provided by a specific embodiment of the present invention.
  • Figure 7 is a schematic structural diagram of the lumen intervention system provided by a specific embodiment of the present invention.
  • Figure 8 is a schematic three-dimensional structural diagram of Figure 7 from different viewing angles
  • Figure 9 is a partial three-dimensional structural diagram of Figure 8 from different viewing angles, showing the chain links and thumb wheels;
  • Figure 10 is a schematic structural diagram of the A-A’ section in Figure 2 from different viewing angles;
  • Figure 11 is a structural schematic diagram of the lumen intervention system provided by a specific embodiment of the present invention.
  • Figure 12 is a schematic structural diagram of a flexible support bar provided by a specific embodiment of the present invention, showing the flexible belt and chain links;
  • Figure 13 is a structural schematic diagram of the catheter placement cavity provided outside the main seat guide rail according to the specific embodiment of the present invention.
  • Figure 14 is a schematic structural diagram of a flexible support bar provided by a specific embodiment of the present invention, showing an integrally formed connecting belt and chain link.
  • a guiding catheter is inserted into the patient's femoral artery through an introducer and positioned near the patient's arterial opening.
  • the guide wire and catheter are inserted into the blood vessel through a hemostatic valve, and then the guide wire is controlled to move in the vascular system until the guide wire reaches the lesion.
  • the guidewire operation choose the guidewire operation, and in the thinner blood vessels that need to be entered when approaching the tissue to be intervened, choose a microguide with a smaller diameter. wire to operate.
  • the catheter or microcatheter uses the guiding function of the guidewire or microguidewire to move along the catheter or microcatheter in the blood vessel until it reaches the tissue to be intervened.
  • the catheter since the catheter has a certain degree of flexibility, how to prevent the bending deformation of the catheter from affecting the smooth progress of interventional treatment is an issue worth studying.
  • the present invention provides a conduit support device.
  • the conduit support device includes a plurality of flexible support strips.
  • the flexible support strips are formed with a plurality of engaging units spaced apart along the strip length direction L. 120 , the engaging units 120 of the plurality of flexible support strips are at least partially engaged to jointly define a catheter placement cavity 1 for accommodating the catheter 10 .
  • multiple independent flexible support strips can mesh with each other to form a surrounding arrangement. In this way, the formed catheter placement cavity 1 can wrap the catheter 10 well, prevent the catheter 10 from bending during movement, and ensure interventional surgery. progressed smoothly.
  • flexibility can also be interpreted as flexibility, which is a characteristic of an object relative to rigidity. Flexibility refers to a physical property in which an object deforms after being subjected to force and cannot return to its original shape after the force is lost.
  • the flexible support strip can be made of a flexible material such as rubber or plastic with a certain degree of flexibility. When the engagement unit 120 of the flexible support strip is not engaged, it can form a certain bend. When engagement is required, the engagement teeth of the engagement unit 120 The engaging recessed portions 1240 are filled with and interlaced with each other to form engagement.
  • the number of flexible support bars may be two, three, four or more.
  • Each support strip can have two sets of engagement units 120 at its end in the strip width direction W.
  • the three flexible support strips are arranged in parallel.
  • a set of engagement units 120 of the first flexible support strip can Engaging with a set of engagement units 120 of the second flexible support strip
  • another set of engagement units 120 of the second flexible support strip can engage with a set of engagement units 120 of the third flexible support strip
  • the third flexible support strip Another set of engagement units 120 of the support strip engages with another set of engagement units 120 of the first flexible support strip, thus surrounding to form the catheter placement cavity 1 .
  • the engagement unit 120 can cover part of the strip section in the strip length direction L of the flexible support strip. In this way, no matter whether the engagement unit 120 in the strip length direction L is fully engaged or engaged, The units 120 are partially engaged and can be formed into a catheter support device with a certain bifurcated section, so that the length of the catheter placement cavity 1 can be adjusted conveniently according to the length or position of the catheter 10 .
  • one of the two engagement units 120 that needs to engage is formed with a protruding tooth portion, and the other is formed with an inner tooth portion.
  • the concave groove portion, the tooth portion and the groove portion can be adapted, similar to the arrangement of a zipper, so the shape of the engaging unit 120 can be diverse.
  • the flexible support bar is a chain and includes a plurality of chain links 100 , and a pin 2 is commonly connected between adjacent chain links 100 .
  • a pin 2 is commonly connected between adjacent chain links 100 .
  • the flexible support strip can be understood as a duct chain. When the duct chain is not meshed, the adjacent chain links 100 are connected together with the rotating shaft in turn. At this time, the chain links 100 are in the spatial plane direction as shown in Figure 4.
  • the flexible support bar is chain-shaped and includes a flexible belt 11 and a plurality of chain links 100.
  • the plurality of chain links 100 are arranged at intervals on the flexible belt 11; or, the flexible support bar is an integrally formed chain-like structure.
  • the flexible belt 11 is a flexible belt-like structure with a certain degree of toughness and strength.
  • the chain link 100 can be fitted and fixed on the flexible belt 11 , where the flexible belt 11 can be understood as The cloth part and chain link 100 in the zipper can be understood as the zipper tooth part in the zipper. In this way, a certain degree of freedom of movement is formed between the multiple chain links 100, that is, the conduit chain is "flexible". Freely change the shape of the chain.
  • the flexible support bar is an integrally formed chain-like structure and includes a plurality of chain links 100 and connecting belts 12 connected between adjacent chain links 100, wherein adjacent Connecting belts 12 are provided between the chain links 100 so that adjacent chain links 100 have a certain degree of freedom of movement and can freely change the chain shape.
  • the duct chain at this time is "rigid". This rigidity will provide the catheter 10 with spatial support, or resistance to bending torque.
  • the chain links 100 are meshed together in sequence according to matching concave and convex shapes, just like a zipper of clothing, so we call it a conduit chain. It should be noted that the so-called “rigidity” after the duct chain is meshed is relative. As the meshing or matching tolerance becomes larger, the meshed duct chain has a certain degree of flexibility, but practice has shown that this will affect its functional use.
  • the flexible support strips made of multiple chain links 100 have a certain degree of rigidity after being engaged, and can provide better and stable support to the catheter 10 .
  • the pin 2 can be an integrally formed structure extending from the chain link 100 or an independent pin 2 structure, which is not specifically limited here.
  • the chain link 100 includes a link plate 110 and two meshing units 120 spaced apart along the width direction W of the flexible support bar.
  • the link plate 110 and The connected engaging units 120 collectively define a placement opening slot 3 around them.
  • a plurality of placement opening slots 3 are connected to jointly form the catheter placement cavity 1 .
  • the link 100 is U-shaped, and the link plate 110 and the meshing unit 120 can be an integrally formed structure, which facilitates processing and has better structural stability.
  • the link plate 110 and the engaging unit 120 may surround the placement opening slot 3 , and at this time, the conduit can be placed in the placement opening slot 3 without any obstruction.
  • the two U-shaped chain links 100 are engaged through the engaging unit 120 , and the placement opening slot 3 can form a closed catheter placement cavity 1 .
  • the conduit 10 is wrapped, ensuring the support of the conduit 10 and having a certain anti-bending torque effect.
  • the number of flexible support bars is two
  • the engaging units 120 of the two flexible support bars each include: an engaging base plate 1210, vertically arranged on the link plate 110; and engaging teeth. , protruding from the meshing base plate 1210 along the length direction L; wherein the meshing teeth are curved and extend around to form the meshing protrusion 1220 and the meshing Recess 1240.
  • the structures of the chain links 100 of the two flexible support bars are the same.
  • the chain links 100 form a placement opening slot 3 sufficient to accommodate the conduit 10.
  • the meshing teeth realize the meshing of the two meshing units 120 .
  • the two meshed chain links 100 are arranged in opposite directions, so that the meshing teeth of one of the two chain links 100 can just mesh with the meshing teeth of the other.
  • the engaging protruding portion 1220 of one of the flexible support bars can be inserted into the engaging recessed portion 1240 of the other, thus forming a spliced circular structure, specifically the engaged chain links 100 as shown in Figure 4.
  • the product structure is simple. Easy to process.
  • the engaging unit 120 of one of the two flexible support bars includes an engaging base plate 1210 vertically arranged on the link plate 110 and an engaging base plate 1210 extending vertically from the engaging base plate 1210 .
  • the engaging protruding portion 1220, the other engaging unit 120 includes an engaging base plate 1210 vertically arranged on the link plate 110 and an engaging recessed portion 1240 formed on the engaging base plate 1210, the engaging recessed portion 1240 and the engaging protruding portion 1220 suitable.
  • the structures of the two meshed chain links 100 in different flexible support bars can also be different.
  • the two meshed chain links 100 can each have an meshing base plate 1210.
  • one meshing base plate 1210 A notch serving as an engaging recessed portion 1240 is formed on the engaging base plate 1210 , and a protruding engaging protruding portion 1220 is formed on the other engaging base plate 1210 in the height direction of the engaging base plate 1210 .
  • the engaging protruding portion 1220 can engage with the engaging recessed portion 1240 , thereby achieving rapid meshing of the two chain links 100 .
  • the catheter support device also includes a catheter chain guide 200 for installing the flexible support strip.
  • the chain guide rail 200 includes a main base guide rail 210 and two bifurcated base guide rails 220 bifurcated at the ends of the main base guide rail 210 .
  • the flexible support bar includes a flexible conduit chain bifurcated section 5 before meshing and a rigid conduit chain engaging section 4 after meshing.
  • the conduit chain engaging section 4 is at least partially located in the main seat guide rail 210.
  • the conduit chain bifurcated section 5 is located at least partially within the furcation base guide rail 220. As shown in FIGS.
  • the intersection or bifurcation of the duct chain guide rail 200 is similar to a zipper in a zipper structure, and can help guide two flexible support strips to engage or separate.
  • the movement path of the flexible support bar can be limited by the catheter chain guide rail 200
  • the main seat guide rail 210 can accommodate the catheter chain engaging section 4
  • the bifurcated seat guide rail 220 can accommodate two catheter chain branches.
  • Fork segment 5 For example, when the engagement protrusions 1220 and the engagement recesses 1240 are engaged in sequence, the filling and staggering of the engagement limit the independent degree of freedom of each link 100, so that the duct chain engagement section 4 formed after engagement is rigid.
  • a part of the flexible support bar is always accommodated in the bifurcated seat guide rail 220 in the form of a conduit chain bifurcated section 5, and a part is always accommodated in the main seat guide rail 210 in the form of a conduit chain engaging section 4.
  • the need increases, When the length of the conduit chain meshing section 4 is long, you only need to pull the conduit chain meshing section 4 to make the conduit chain bifurcated section 5 enter the main seat guide. Just within rail 210.
  • the catheter chain guide rail 200 only needs to be pushed in the direction of the catheter chain engaging section 4 so that the catheter chain engaging section 4 can enter the catheter chain bifurcated section 5 to achieve separation.
  • the bifurcated seat guide rail 220 includes a bifurcated front end connected to the main seat guide rail 210, and the bifurcated front end is formed with a guide protrusion 6 extending toward the main seat guide rail 210, so that the two engaged parts The meshing units 120 of each chain are separated and enter the corresponding fork seat guide rail 220.
  • a guide protrusion 6 can be formed at the connection between the bifurcated seat guide rail 220 and the main seat guide rail 210 .
  • the guide protrusion 6 can be a triangular structure with a tip, wherein the tip portion faces the main seat.
  • a catheter insertion hole 7 for inserting the catheter 10 is also formed at the front end of the bifurcation.
  • the catheter insertion hole 7 is coaxially arranged with the inner cavity of the main seat guide rail 210 .
  • the catheter 10 can be inserted into the main base guide rail 210 through the catheter insertion hole 7.
  • the catheter insertion hole 7 is coaxially arranged with the main seat guide rail 210, so that the catheter 10 can be inserted through the catheter insertion hole 7. into the catheter placement cavity 1.
  • the catheter 10 can be inserted into the catheter chain engaging section 4 conveniently and accurately. It has simple structure, convenient operation and high precision.
  • the main seat guide rail 210 is formed with a guide rail lumen, and the catheter placement cavity 1 is located outside or inside the guide rail lumen.
  • the chain link 100 includes a first part located in the inner cavity of the guide rail and a second part located outside the inner cavity of the guide rail. In this way, the chain link 100 is fixed on the main base guide rail 210 through the first part.
  • the catheter 10 is accommodated and wrapped by the second part; or, in another embodiment, the main base guide rail 210 is formed with a guide rail lumen, and the catheter placement cavity 1 is located inside the guide rail lumen.
  • the chain link 100 is completely Wrapped in the main seat guide rail 210, the chain link 100 and the guide tube 10 can be better protected.
  • the present invention also provides a lumen intervention system, which includes the above-mentioned catheter support device.
  • the lumen intervention system includes a system fixing base 300 and a sliding platform 400 slidably installed on the system fixing base 300.
  • the catheter support device is installed on the sliding platform 400.
  • the system holder 300 can be the fixed end of the system
  • the sliding platform 400 can be the movable end of the system for installing catheter guidewires and other structures required for interventional treatment procedures.
  • the sheath clamp When the sheath clamp is dragged, the sheath clamp can generate pulling force on the catheter chain engaging section 4, so that , some of the bifurcated sections 5 of the catheter chain can be meshed to form the catheter chain engaging section 4, thereby increasing the length of the catheter chain engaging section 4, and the entire formed catheter placement cavity 1 simultaneously wraps the catheter 10, because the meshed catheters
  • the chain bifurcated section 5 has a certain degree of rigidity, thus supporting the conduit 10 .
  • the lumen intervention system also includes a support strip braking assembly 500 for fixing the flexible support strip.
  • the support strip braking assembly 500 includes: a dial 510, A limiting groove 8 is formed on the chain link 100, and a plurality of circumferentially distributed dial limiting teeth 9 that can be inserted into the limiting groove 8 are formed on the dial wheel 510; and a brake 520 is installed on the system holder 300;
  • the dial wheel 510 is rotatably mounted on the brake 520 and can be switched between a braking state and a free-rotating state.
  • the brake 520 is installed on the system holder 300, the thumb wheel 510 is inserted into the guide rail 200 of the conduit chain, and the thumb wheel 510 extends into and out of the sliding platform 400 to form a chute, so that when the system holder When there is a positional movement between 300 and the sliding platform 400, there is no interference between the thumb wheel 510 and the sliding platform 400.
  • the brake 520 can control the movement state of the thumbwheel 510 by energizing or endpointing.
  • the thumbwheel 510 When the brake 520 is not powered, the thumbwheel 510 is in a free-rotating state and can rotate freely.
  • the limiting groove 8 formed on the chain link 100 is adapted to the dial limiting teeth 9 on the dial wheel 510.
  • the dial wheel 510 can rotate and some of the dial limiting teeth 9 can Insert into the limit slot 8.
  • the brake 520 can be energized.
  • the dial wheel 510 is in a braking state and cannot continue to rotate, and due to the cooperative relationship between the dial wheel limit teeth 9 and the limit groove 8, the flexible support bar position is fixed.
  • other specific structures of the support bar braking assembly 500 are existing technologies in the art and will not be described in detail here.
  • the fork seat guide rail 220 located in the direction of the dial wheel 510 needs to be opened, so that there is no gap between the dial wheel 510 and the corresponding chain link 100. Barrier connection.
  • the direction of the far end (front end) is defined as the forward direction of dragging the flexible support bar
  • the direction of the proximal end (end) is defined as the backward direction of dragging the flexible support bar.
  • the catheter 10 first needs to reach a predetermined reasonable position.
  • the guide wire passes through the catheter 10 and extends out of the catheter 10 for a short distance, and the specific curved shape of the head of the guide wire is used to select the vascular branch of the femoral artery.
  • the guide wire remains stationary, and then is fed to the distal end (front end) through the sliding platform 400.
  • the catheter 10 installed on the sliding platform 400 "advances along" the guide wire, and then the guide wire is guided to the distal end (front end).
  • the wire is fed again so that the guide wire head extends out of the catheter 10 for a certain distance again, and the catheter 10 is fed along the guide wire again, so that the catheter 10 and the guide wire advance alternately.
  • the catheter 10 and the guide wire can be fed together and directly advanced to continue the interventional surgery.
  • the dial wheel 510 needs to be in a braking state, that is, the flexible support bar and the mechanical arm are both in a static and fixed state, but the catheter chain guide rail 200 is fed together with the sliding platform 400.
  • the flexible support bar is still sliding relative to it in the duct chain guide rail 200, but at this time the flexible support bar is stationary and the duct chain guide rail 200 is moving.
  • the sliding platform 400 and the catheter chain guide rail 200 advance, the length of the catheter chain engaging section 4 of the catheter chain guide rail 200 extended by the flexible support bar becomes shorter.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In the present invention, unless otherwise expressly stated and limited, the terms “installation”, “connection”, “connection”, Terms such as “fixed” should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be a direct connection, or it can be a direct connection. Indirect connection through an intermediary may be an internal connection between two elements or an interactive relationship between two elements, unless otherwise expressly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. touch.
  • the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
  • references to the terms “one embodiment,” “some embodiments,” “an example,” “specific examples,” or “some examples” or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of the invention. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Prostheses (AREA)

Abstract

本发明公开了一种导管支撑装置和管腔介入系统，所述导管支撑装置包括多条柔性支撑条，所述柔性支撑条上形成有沿条长方向间隔布置的多个啮合单元，多条所述柔性支撑条的啮合单元之间至少部分啮合以共同围绕限定形成用于容纳导管的导管放置腔。采用柔性支撑条，通过柔性支撑条上的啮合单元能够使得多个柔性支撑条相啮合并形成为导管放置腔，通过导管放置腔能够容纳导管，实现对导管的包裹，保证对导管的支撑，具有一定的抗弯扭矩作用，结构简单，操作方便，保证介入手术的顺利完成。

Description

导管支撑装置和管腔介入系统 技术领域
本发明涉及介入治疗技术领域，具体地涉及一种导管支撑装置和管腔介入系统。
背景技术
介入治疗把导管或器械“介入”到人体几乎所有的血管分支、消化道和其它特定部位，运用于疾病的治疗。对于肿瘤累类疾病，血管内介入是指将导管插入支配肿瘤的血管内，注射化疗药物，使得药物精确打靶治疗，或将血管阻断(栓塞)，断其肿瘤细胞的血供，使其“饿”死坏死。事实表明，此种疗法几乎对所有实质性癌肿，均可进行血管介入治疗。
一般情况下，在较粗的血管中(例如一开始的动脉血管操作)，选择导丝操作，在接近预备干预的组织时就要进入的较细的血管中，则选择直径更细的微导丝进行操作。导管或者微导管利用导丝或者微导丝的导向作用，沿着导管或者微导管在血管中移动，直到预备进行干预的组织。然而由于导管具有一定的柔性，如何防止导管因弯曲形变而影响介入治疗的顺利进行是值得研究的问题。
发明内容
本发明的目的是提供一种导管支撑装置和管腔介入系统，结构简单，操作方便，能够很好的支撑导管以保证介入手术的顺利完成。
为了实现上述目的，本发明提供一种导管支撑装置，所述导管支撑装置包括多条柔性支撑条，所述柔性支撑条上形成有沿条长方向间隔布置的多个啮合单元，多条所述柔性支撑条的啮合单元之间至少部分啮合以共同围绕限定形成用于容纳导管的导管放置腔。
在一些实施例中，所述柔性支撑条为链条状并包括多个链节，相邻的所述链节之间共同穿连有销轴；
在一些实施例中，所述柔性支撑条为链条状并包括柔性带和多个链节，多个所述链节间隔布置于所述柔性带上；或，所述柔性支撑条为一体成型的链条状结构。
在一些实施例中，所述链节包括链节板以及沿所述柔性支撑条的条宽方向间隔布置的两个所述啮合单元，所述链节板与相连的所述啮合单元共同围绕限定有放置开口槽， 在相啮合的两条所述柔性支撑条中，多个所述放置开口槽相连通以共同形成所述导管放置腔。
在一些实施例中，所述柔性支撑条的个数为两个，两条所述柔性支撑条的所述啮合单元均包括：啮合基板，竖向布置于所述链节板上；和啮合齿，从所述啮合基板上沿所述条长方向伸出；其中，所述啮合齿呈曲线形并延伸环绕以形成啮合凸起部和啮合凹陷部。
在一些实施例中，两条所述柔性支撑条中的一者的所述啮合单元包括竖向布置于所述链节板上的啮合基板以及从所述啮合基板上竖向伸出的啮合凸起部，另一者的所述啮合单元包括竖向布置于所述链节板上的啮合基板以及形成于所述啮合基板上的啮合凹陷部，所述啮合凹陷部与所述啮合凸起部相适配。
在一些实施例中，所述导管支撑装置还包括用于安装所述柔性支撑条的导管链导轨，所述导管链导轨包括主座导轨以及在所述主座导轨的端部分叉而成的两个分叉座导轨。
在一些实施例中，所述柔性支撑条包括啮合前的柔性的导管链条分叉段以及相啮合后的刚性的导管链条啮合段，所述导管链条啮合段至少部分位于所述主座导轨内，所述导管链条分叉段至少部分位于所述分叉座导轨内。
在一些实施例中，所述分叉座导轨包括与所述主座导轨相连的分叉前端，所述分叉前端形成有朝向所述主座导轨伸出的导向凸起，使得相啮合的两个所述链条的啮合单元分离并进入相应的所述分叉座导轨内。
在一些实施例中，所述分叉前端还形成有用于插入所述导管的导管放入孔，所述导管放入孔与所述主座导轨的套内腔同轴布置，使得所述导管能够自所述导管放入孔插入至所述导管放置腔中。
在一些实施例中，所述主座导轨形成有导轨内腔，所述导管放置腔位于所述导轨内腔的外部或内部。
另外，本发明还提供了一种管腔介入系统，所述管腔介入系统包括上述的导管支撑装置。
在一些实施例中，所述管腔介入系统包括系统固定座以及滑动安装于所述系统固定座上的滑动平台，所述导管支撑装置安装于滑动平台上。
在一些实施例中，所述管腔介入系统还包括用于固定所述柔性支撑条的支撑条制动组件，所述支撑条制动组件包括：
拨轮，所述链节上形成有限位槽，所述拨轮上形成有周向分布的能够插装入所述限位槽的多个拨轮限位齿；和
制动器，安装于所述系统固定座上；
其中，所述拨轮可旋转地安装于所述制动器上并能够在制动状态与自由转动状态之间切换。
通过上述技术方案，本发明提供的导管支撑装置和管腔介入系统，采用柔性支撑条，通过柔性支撑条上的啮合单元能够使得多个柔性支撑条相啮合并形成为导管放置腔，通过导管放置腔能够容纳导管，实现对导管的包裹，保证对导管的支撑，具有一定的抗弯扭矩作用，结构简单，操作方便，保证介入手术的顺利完成。
本发明的其它特征和优点将在随后的具体实施方式部分予以详细说明。
附图说明
图1是本发明具体实施方式提供的导管支撑装置的结构示意图；
图2是图1的局部结构示意图，展示了导管链条啮合段和导管链条分叉段；
图3是本发明具体实施方式提供的柔性支撑条的一种结构示意图；
图4是图3的不同视角下的结构示意图，展示了链节；
图5是图4的不同视角下的局部结构示意图，展示了一组相啮合的链节；
图6是本发明具体实施方式提供的柔性支撑条的一种结构示意图；
图7是本发明具体实施方式提供的管腔介入系统的种结构示意图；
图8是图7的不同视角下的立体结构示意图；
图9是图8的不同视角下的局部立体结构示意图，展示了链节以及拨轮；
图10为图2不同视角下的A-A’剖切面的结构示意图；
图11为本发明具体实施方式提供的管腔介入系统的一种结构示意图；
图12为本发明具体实施方式提供的一种柔性支撑条的结构示意图，展示了柔性带和链节；
图13为本发明具体实施方式提供的导管放置腔位于主座导轨外的一种结构示意图；
图14为本发明具体实施方式提供的柔性支撑条的结构示意图，展示了一种一体成型的连接带和链节。
附图标记说明
100.链节；200.导管链导轨；300.系统固定座；400.滑动平台；500.支撑条制动组件；
110.链节板；120.啮合单元；1210.啮合基板；1220.啮合凸起部；1240.啮合凹陷部；210.主座导轨；220.分叉座导轨；510.拨轮；520.制动器；1.导管放置腔；2.销轴；3.放置开口槽；4.导管链条啮合段；5.导管链条分叉段；6.导向凸起；7.导管放入孔；8.限位槽；9.拨轮限位齿；10.导管；11.柔性带；12.连接带；L.条长方向；W.条宽方向。
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
需要说明的是，在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。
下面将参考附图并结合实施例来详细说明本发明。
血管内介入治疗中，引导导管通过导引器插入患者的股动脉中，并且定位在患者动脉口附近。通常导丝和导管通过止血阀插入血管之中，之后将控制导丝在血管系统中进行移动，直到导丝到达病变部位。一般情况下，在较粗的血管中(例如一开始的动脉血管操作)，选择导丝操作，在接近预备干预的组织时就要进入的较细的血管中，则选择直径更细的微导丝进行操作。导管或者微导管利用导丝或者微导丝的导向作用，沿着导管或者微导管在血管中移动，直到预备进行干预的组织。然而由于导管具有一定的柔性，因此，如何防止导管因弯曲形变而影响介入治疗的顺利进行是值得研究的问题。
为此，参考图1至图14所示，本发明提供了一种导管支撑装置，导管支撑装置包括多条柔性支撑条，柔性支撑条上形成有沿条长方向L间隔布置的多个啮合单元120，多条柔性支撑条的啮合单元120之间至少部分啮合以共同围绕限定形成用于容纳导管10的导管放置腔1。可以理解为，通过多条独立的柔性支撑条能够相互啮合以形成围绕布置的状态，这样，形成的导管放置腔1能够很好的包裹导管10，防止导管10移动过程中发生弯曲，保证介入手术的顺利进行。
可选地，首先需要说明的是，柔性也可解释为挠性，是相对刚性而言的一种物体特性。挠性是指物体受力后变形，作用力失去之后物体自身不能恢复原来形状的一种物理性质。对于柔性支撑条，可以为柔性材质例如具有一定柔性的橡胶或塑料，柔性支撑条的啮合单元120未啮合时，可以形成一定的弯曲，当需要啮合时啮合单元120的啮合齿 和啮合凹陷部1240相互填充和交错形成啮合。
可选地，对于柔性支撑条的个数，可以为两个、三个、四个或者更多。例如三个柔性支撑条，每个支撑条在其条宽方向W的端部可以具有两组啮合单元120，三条柔性支撑条平行布置，此时第一条柔性支撑条的一组啮合单元120能够与第二条柔性支撑条的一组啮合单元120相啮合，第二条柔性支撑条的另一组啮合单元120能够与第三条柔性支撑条的一组啮合单元120相啮合，第三条柔性支撑条的另一组啮合单元120余第一条柔性支撑条的另一组啮合单元120相啮合，这样围绕以形成导管放置腔1。
可选地，对于柔性支撑条，可以理解为，对于啮合单元120可以覆盖该柔性支撑条的条长方向L的部分条段，这样，无论其条长方向L的啮合单元120完全啮合，还是啮合单元120部分啮合，都可以形成为具有一定分叉段的导管支撑装置，这样，方便根据导管10的长度或位置调节导管放置腔1的腔管长度。
可选地，对于啮合单元120，为了保证不同的柔性支撑条上的啮合单元120能够啮合，需要相啮合的两个啮合单元120中的一者形成有突出的齿部，另一者形成有内凹的槽部，该齿部与该槽部能够相适配，类似于拉链的布置方式，因此对于啮合单元120的形状可以多种多样。
具体地，柔性支撑条为链条并包括多个链节100，相邻的链节100之间共同穿连有销轴2。在一种实施例中，如图1所示，可以理解为，多个链节100通过销轴2依次首尾相连形成该柔性支撑链条，相应的通过销轴2使得相邻的两个链节100之间具有一定的枢转自由度。其中，柔性支撑条可以理解为是导管链，当导管链还未啮合时，相邻的链节100依次用转轴连接到一起，此时链节100在如图4所示的空间平面方向上是完全的非约束状态，可以自由的活动的，即在空间的平面上是有三个自由度的(两个方向的移动和围绕垂直于平面的轴线的转动)，可以考虑为，此时的导管链是“柔性的”，其可以自由的改变链状的形态。导管链导轨200的存在提供了其未啮合时的进给运动方向约束。
柔性支撑条为链条状并包括柔性带11和多个链节100，多个链节100间隔布置于柔性带11上；或，柔性支撑条为一体成型的链条状结构。在一种实施例中，如图12所示，柔性带11为柔性的带状结构，具有一定韧性和强度，链节100可以贴合固定在柔性带11上，其中，柔性带11可以理解为拉链中的布条部，链节100可以理解为拉链中的拉链齿部，这样，使得多个链节100之间形成一定的活动自由度，即导管链是“柔性的”可以 自由地改变链状的形态。在另一种实施例中，如图14所示，柔性支撑条为一体成型的链条状结构并包括多个链节100以及连接于相邻链节100之间的连接带12，其中相邻的链节100之间设置有连接带12，使得相邻的链节100之间具有一定的活动自由度，可以自由地改变链状的形态。
当导管链链节经过主座导轨210与分叉座导轨220导管链的交汇处，由于导管链导轨200在交汇处的空间约束，主要是啮合后的宽度方向的约束，两侧的链节100依次地根据匹配的凹凸形状而啮合到一起，啮合后，由于啮合限制了每一个链节100的左右移动，前后移动和转动，这种啮合就像装配配合关系一样，并且其完全约束了啮合的导管链在空间平面的自由度，链节100将不能再自由的活动，只能导管链作为整体做平动，可以考虑为，此时的导管链是“刚性的”。这种刚性将为导管10提供在空间上的支撑，或者说是抗弯扭矩作用。正如上述所说，链节100依次地根据匹配的凹凸形状而啮合到一起，就像是衣服的拉链一样，所以我们称之为导管链。需要说明一点，导管链啮合之后所谓的“刚性”是相对的，随着啮合或配合公差的变大，啮合后的导管链具有一定的柔性，但实践表明并影响它的功能使用。
这样，多个链节100做成的柔性支撑条啮合后具有一定的刚性，能够对导管10产生较好的稳定的支撑。此外，需要说明的是，对于销轴2，可以为自链节100上伸出的一体成型结构，也可以为独立的销轴2结构，在此不做具体限定。
进一步地，对于链节100的具体结构，在一种实施例中，链节100包括链节板110以及沿柔性支撑条的条宽方向W间隔布置的两个啮合单元120，链节板110与相连的啮合单元120共同围绕限定有放置开口槽3，在相啮合的两条柔性支撑条中，多个放置开口槽3相连通以共同形成导管放置腔1。如图3和图5所示，可以理解为，该链节100呈匚形其中链节板110和啮合单元120可以为一体成型结构，这样，方便加工也结构的稳定性较好。进一步地，链节板110与啮合单元120可以围绕形成放置开口槽3，此时导管能够无障碍的放置在放置开口槽3内。进一步地两个匚形的链节100通过啮合单元120啮合，放置开口槽3能够形成闭合的导管放置腔1。这样，实现对导管10的包裹，保证对导管10的支撑，具有一定的抗弯扭矩作用。
更进一步地，在一种实施例中，柔性支撑条的个数为两个，两条柔性支撑条的啮合单元120均包括：啮合基板1210，竖向布置于链节板110上；和啮合齿，从啮合基板1210上沿条长方向L伸出；其中，啮合齿呈曲线形并延伸环绕以形成啮合凸起部1220和啮合 凹陷部1240。如图3和图4所示，可以理解为，两条柔性支撑条的链节100的结构相同，此时，通过啮合基板1210使得链节100形成有足够容纳导管10的放置开口槽3，通过啮合齿实现两个啮合单元120的啮合。具体地，在条长方向L上，相啮合的两个链节100反向布置，这样，使得两个链节100中的一者的啮合齿刚好能够与另一者的啮合齿相啮合即两条柔性支撑条的一者的啮合凸起部1220能够插入至另一者的啮合凹陷部1240内，这样形成拼接的圆形结构，具体如图4中相啮合的链节100，产品结构简单，方便加工。
更进一步地，在另一种实施例中，两条柔性支撑条中的一者的啮合单元120包括竖向布置于链节板110上的啮合基板1210以及从啮合基板1210上竖向伸出的啮合凸起部1220，另一者的啮合单元120包括竖向布置于链节板110上的啮合基板1210以及形成于啮合基板1210上的啮合凹陷部1240，啮合凹陷部1240与啮合凸起部1220相适配。如图6所示，对于不同柔性支撑条中相啮合的两个链节100的结构也可以不同，例如，相啮合的两个链节100可以均具有啮合基板1210，相应的，一个啮合基板1210上形成有作为啮合凹陷部1240的缺口，另一啮合基板1210上在啮合基板1210的板高方向形成有突出的啮合凸起部1220，这样，啮合凸起部1220能够与啮合凹陷部1240相啮合，由此实现两个链节100的快速啮合。
此外，为了方便根据导管10的长度和方向对柔性支撑条形成的导管放置腔1的长度调节，在一种实施例中，导管支撑装置还包括用于安装柔性支撑条的导管链导轨200，导管链导轨200包括主座导轨210以及在主座导轨210的端部分叉而成的两个分叉座导轨220。进一步地，柔性支撑条包括啮合前的柔性的导管链条分叉段5以及相啮合后的刚性的导管链条啮合段4，导管链条啮合段4至少部分位于主座导轨210内，导管链条分叉段5至少部分位于分叉座导轨220内。如图1和图2所示，可以理解为，该导管链导轨200的交汇处或者分叉处类似于拉链结构中的拉锁，能够帮助引导两条柔性支撑条啮合或分开。如图10所示，具体地，通过导管链导轨200能够限制柔性支撑条的运动路径，主座导轨210能够容置导管链条啮合段4，通过分叉座导轨220能够容置两个导管链条分叉段5。例如啮合凸起部1220与啮合凹陷部1240依次啮合时，啮合的填充和交错限制了每一个链节100单独的自由度，使得啮合后形成的导管链条啮合段4为刚性。
此外，柔性支撑条的一部分始终以导管链条分叉段5的形式容置在分叉座导轨220内，且一部分始终以导管链条啮合段4的形式容置在主座导轨210内，当需要增长导管链条啮合段4的长度时，只需拉动导管链条啮合段4使得导管链条分叉段5进入主座导 轨210内即可。当需要缩短导管链条啮合段4的长度时，只需向导管链条啮合段4的方向推动导管链导轨200即可使位导管链条啮合段4进入导管链条分叉段5以实现分离。
进一步地，在一种实施例中，分叉座导轨220包括与主座导轨210相连的分叉前端，分叉前端形成有朝向主座导轨210伸出的导向凸起6，使得相啮合的两个链条的啮合单元120分离并进入相应的分叉座导轨220内。如图2所示，可以理解为，在分叉座导轨220与主座导轨210的连接处可以形成导向凸起6，该导向凸起6可以为具有尖端的三角形结构，其中尖端部朝向主座导轨210，当导管链条啮合段4经过该导向凸起6时，在导向凸起6和导管链条分叉段5的共同作用下，相啮合的两个啮合单元120分开，这样，在导管链导轨200的移动下能够快速便捷地调节导管链条啮合段4的长度，以与导管10的运动相适配。
进一步地，在一种实施例中，分叉前端还形成有用于插入导管10的导管放入孔7，导管放入孔7与主座导轨210的套内腔同轴布置。如图2所示，通过导管放入孔7能够将导管10插入至主座导轨210内，同时导管放入孔7与主座导轨210同轴布置，使得导管10能够自导管放入孔7插入至导管放置腔1中。这样，能够方便且精准地将导管10插入至导管链条啮合段4内。结构简单，操作方便，精准度高。
对于导管放置腔1与主座导轨210之间的位置关系，在一种实施例中，主座导轨210形成有导轨内腔，导管放置腔1位于导轨内腔的外部或内部。如图13所示，可以理解为，链节100包括位于导轨内腔的第一部分和位于导轨内腔的外部的第二部分，这样，通过第一部分使得链节100固定在主座导轨210上，通过第二部分容纳包裹导管10；或，在另一种实施例中，主座导轨210形成有导轨内腔，导管放置腔1位于导轨内腔的内部，如图10所示，链节100完全包裹在主座导轨210内，这样，能够更好的保护链节100和导管10。
另外，本发明还提供了一种管腔介入系统，管腔介入系统包括上述的导管支撑装置。
在一种实施例中，管腔介入系统，管腔介入系统包括系统固定座300以及滑动安装于系统固定座300上的滑动平台400，导管支撑装置安装于滑动平台400上。如图7和图8所示，该系统固定座300可以为系统的固定端，滑动平台400可以为系统的活动端用于安装介入治疗手术所需的导管导丝等结构。
介入手术中，首先将导管鞘插入至身体组织的穿刺点，并将导管10的远端(前端)插 入至导管鞘中，然后将导管10近端(末端)安装于滑动平台400且导管分叉处装入至导管放入孔7里；而后拉出导管链，导管链逐渐啮合伸长同时包裹住导管10，直至导管链前部的鞘夹拖动至导管鞘处，把导管鞘安装于鞘夹之中，当拖动鞘夹的时候，鞘夹能够对导管链条啮合段4产生拉动力，这样，能够有部分的导管链条分叉段5啮合形成导管链条啮合段4，以此增大导管链条啮合段4的长度，整个形成的导管放置腔1同时包裹住导管10，由于啮合在一起的导管链条分叉段5具有一定的刚性，因此形成对导管10的支撑作用。
进一步地，对于柔性支撑条的制动，在一种实施例中，管腔介入系统还包括用于固定柔性支撑条的支撑条制动组件500，支撑条制动组件500包括：拨轮510，链节100上形成有限位槽8，拨轮510上形成有周向分布的能够插装入限位槽8的多个拨轮限位齿9；和制动器520，安装于系统固定座300上；其中，拨轮510可旋转地安装于制动器520上并能够在制动状态与自由转动状态之间切换。如图8和图9所示，其中制动器520安装在系统固定座300上，拨轮510插入导管链导轨200，其中拨轮510伸入并穿出滑动平台400形成滑槽，这样当系统固定座300与滑动平台400之间产生位置移动时，拨轮510与滑动平台400之间不产生干涉。
具体地，该制动器520通过通电或者端点能够控制拨轮510的运动状态，该制动器520在未通电状态下，拨轮510处于自由转动状态能够自由旋转。链节100上形成的限位槽8与拨轮510上的拨轮限位齿9相适配，随着柔性支撑条的位置移动，拨轮510能够旋转并使得部分拨轮限位齿9能够插装入限位槽8内。当需要固定柔性支撑条的时候，可以对制动器520通电，此时拨轮510处于制动状态无法继续旋转，且由于拨轮限位齿9与限位槽8的配合关系，使得柔性支撑条位置固定。此外，对于支撑条制动组件500的其他具体结构，为本领域的现有技术，在此不做具体说明。
相应地，为了保证拨轮510与链节100的限位槽8相作用，需要将位于拨轮510方向的分叉座导轨220做开口处理，使得拨轮510与相应的链节100之间无障碍连接。
首先，把远端(前端)的方向定义为拖动柔性支撑条的前进方向，把近端(末端)的方向定义为拖动柔性支撑条的后退方向。对于使用该管腔介入系统的介入手术可以为，当制动器520处于未通电状态时，此时拨轮510处于自由转动状态，导管鞘的鞘管插入患者的已经预留好的穿刺处，然后将导管10近端(末端)安装于滑动平台400且导管分叉处装入至导管放入孔7里；而后拉出导管链，导管链逐渐啮合伸长同时包裹住导管10， 直至导管链前部的鞘夹拖动至导管鞘处，此时柔性支撑条形成具有一定长度的导管放置腔1。
在后续的操作中，以肾脏的超选择性插管介入治疗为例，首先导管10需要达到预定合理的位置。一般情况下，导丝穿过导管10并伸出导管10一小段距离，利用导丝的头部特定弯曲的形状，来选择股动脉的血管支路。导丝选择完正确的动脉支路以后，导丝保持不动，随后通过滑动平台400向远端(前端)进给，安装于滑动平台400上的导管10“沿着”导丝前进，随后导丝再次进给使导丝头部再次伸出导管10一定的距离，导管10再沿着导丝进给，就这样导管10和导丝交替前进。在较粗的股动脉血管中或者较容易进入的动脉支路处，可以导管10和导丝一起进给，直接前进进给，继续介入手术的操作。
这其中，如图11所示，当导管10随着滑动平台400前进进给的时候，拨轮510需是制动状态，也即柔性支撑条和机械臂都是静止固定状态，但是导管链导轨200是随着滑动平台400一起进给的，此时柔性支撑条还是在导管链导轨200中相对其滑行，不过这时候柔性支撑条是静止的，导管链导轨200是运动的。随着滑动平台400和导管链导轨200的前进进给，柔性支撑条伸出的导管链导轨200的导管链条啮合段4的长度变短。同理，相反的，当柔性支撑条静止不动时，随着滑动平台400和导管链导轨200的后退，柔性支撑条伸出的导管链导轨200的导管链条啮合段4的导管链伸出的导轨的啮合单元分长度变长。在操纵端和导管鞘之间的导管部分，其随着介入手术操作而变长或者变短，那么柔性支撑条也能够对随着这一导管部分变长或者变短。
需要特别说明的是，根据本发明实施例中的导管支撑装置和管腔介入系统的其它构成以及作用对于本领域的普通技术人员而言都是已知的，例如导丝导管的移动或旋转的驱动结构，为了减少冗余，此处不做赘述。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变形。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、 “固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制。在本发明的所述特征上，进行的结构的变化、修改、替换和变形，均属于本发明的保护范围之内。

Claims (14)

  1. 一种导管支撑装置，其特征在于，所述导管支撑装置包括多条柔性支撑条，所述柔性支撑条上形成有沿条长方向(L)间隔布置的多个啮合单元(120)，多条所述柔性支撑条的啮合单元(120)之间至少部分啮合以共同围绕限定形成用于容纳导管的导管放置腔(1)，所述柔性支撑条为链条状并包括多个链节(100)。
  2. 根据权利要求1所述的导管支撑装置，其特征在于，相邻的所述链节(100)之间共同穿连有销轴(2)。
  3. 根据权利要求1所述的导管支撑装置，其特征在于，所述柔性支撑条还包括柔性带(11)，多个所述链节(100)间隔布置于所述柔性带(11)上；或，所述柔性支撑条为一体成型的链条状结构。
  4. 根据权利要求2或3所述的导管支撑装置，其特征在于，所述链节(100)包括链节板(110)以及沿所述柔性支撑条的条宽方向(W)间隔布置的两个所述啮合单元(120)，所述链节板(110)与相连的所述啮合单元(120)共同围绕限定有放置开口槽(3)，在相啮合的两条所述柔性支撑条中，多个所述放置开口槽(3)相连通以共同形成所述导管放置腔(1)。
  5. 根据权利要求4所述的导管支撑装置，其特征在于，所述柔性支撑条的个数为两个，两条所述柔性支撑条的所述啮合单元(120)均包括：
    啮合基板(1210)，竖向布置于所述链节板(110)上；和
    啮合齿，从所述啮合基板(1210)上沿所述条长方向(L)伸出；
    其中，所述啮合齿呈曲线形并延伸环绕以形成啮合凸起部(1220)和啮合凹陷部(1240)。
  6. 根据权利要求4所述的导管支撑装置，其特征在于，两条所述柔性支撑条中的一者的所述啮合单元(120)包括竖向布置于所述链节板(110)上的啮合基板(1210)以及从所述啮合基板(1210)上竖向伸出的啮合凸起部(1220)，另一者的所述啮合单元(120)包括竖向布置于所述链节板(110)上的啮合基板(1210)以及形成于所述啮合基板(1210)上的啮合凹陷部(1240)，所述啮合凹陷部(1240)与所述啮合凸起部(1220)相适配。
  7. 根据权利要求2或3所述的导管支撑装置，其特征在于，所述导管支撑装置还包括用于安装所述柔性支撑条的导管链导轨(200)，所述导管链导轨(200)包括主座导轨(210)以及在所述主座导轨(210)的端部分叉而成的两个分叉座导轨(220)。
  8. 根据权利要求7所述的导管支撑装置，其特征在于，所述柔性支撑条包括啮合前 的柔性的导管链条分叉段(5)以及相啮合后的刚性的导管链条啮合段(4)，所述导管链条啮合段(4)至少部分位于所述主座导轨(210)内，所述导管链条分叉段(5)至少部分位于所述分叉座导轨(220)内。
  9. 根据权利要求8所述的导管支撑装置，其特征在于，所述分叉座导轨(220)包括与所述主座导轨(210)相连的分叉前端，所述分叉前端形成有朝向所述主座导轨(210)伸出的导向凸起(6)，使得相啮合的两个所述链条的啮合单元(120)分离并进入相应的所述分叉座导轨(220)内。
  10. 根据权利要求9所述的导管支撑装置，其特征在于，所述分叉前端还形成有用于插入所述导管的导管放入孔(7)，所述导管放入孔(7)与所述主座导轨(210)的套内腔同轴布置，使得所述导管能够自所述导管放入孔(7)插入至所述导管放置腔(1)中。
  11. 根据权利要求8所述的导管支撑装置，其特征在于，所述主座导轨(210)形成有导轨内腔，所述导管放置腔(1)位于所述导轨内腔的外部或内部。
  12. 一种管腔介入系统，其特征在于，所述管腔介入系统包括根据权利要求2～11中任意一项所述的导管支撑装置。
  13. 根据权利要求12所述的管腔介入系统，其特征在于，所述管腔介入系统包括系统固定座(300)以及滑动安装于所述系统固定座(300)上的滑动平台(400)，所述导管支撑装置安装于滑动平台(400)上。
  14. 根据权利要求13所述的管腔介入系统，其特征在于，所述管腔介入系统还包括用于固定所述柔性支撑条的支撑条制动组件(500)，所述支撑条制动组件(500)包括：
    拨轮(510)，所述链节(100)上形成有限位槽(8)，所述拨轮(510)上形成有周向分布的能够插装入所述限位槽(8)的多个拨轮限位齿(9)；和
    制动器(520)，安装于所述系统固定座(300)上；
    其中，所述拨轮(510)可旋转地安装于所述制动器(520)上并能够在制动状态与自由转动状态之间切换。
PCT/CN2023/111220 2022-08-16 2023-08-04 导管支撑装置和管腔介入系统 WO2024037357A1 (zh)

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