Catheter fixing device and interventional system for cardiovascular and cerebrovascular treatment

Abstract

The invention discloses a catheter fixing device and an interventional system for cardiovascular and cerebrovascular treatment, and belongs to the technical field of medical instruments, a transverse tube hole for a catheter to transversely penetrate through and a longitudinal tube hole for the catheter to longitudinally penetrate through are formed at the same time, and the catheter can be longitudinally or transversely fixed according to the use position of the interventional catheter. Therefore, the catheter can be effectively limited around the skin of an insertion point or at any position such as the end and the middle of the catheter, more than two catheters in any direction can be fixed at the same time, a more flexible catheter fixing mode is achieved, and the use limitation of an existing catheter fixing support is overcome. The catheter fixing device can be suitable for intraoperative or postoperative fixation of the interventional catheter for cardiovascular and cerebrovascular treatment, and is high in flexibility, convenient and fast. The interventional system for cardiovascular and cerebrovascular treatment comprises the catheter fixing device, an interventional catheter is fixed through the catheter fixing device when the interventional system is used, and the interventional system has all the characteristics of the catheter fixing device.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and relates to a catheter fixing tool for vascular treatment, and in particular to a catheter fixing device and an interventional system for cardiovascular and cerebrovascular treatment. Background Art

[0002] Catheter intervention is a commonly used treatment method that uses a catheter to deliver treatment devices or drugs to the heart or blood vessels to achieve the purpose of treatment. When using it, first perform a blood vessel puncture and insert the catheter into the blood vessel. Then, if necessary, insert the guide wire from the bifurcation at the end of the catheter into the catheter. Through the cooperation of the catheter and the guide wire, the catheter is inserted into the target blood vessel to be entered.

[0003] During the operation, half of the catheter is placed in the patient's body and the other half is outside the body. To prevent it from falling off, loosening or accidentally touching, it is usually fixed to the patient's skin with medical tape. The use of medical tape to fix the catheter will cause a certain degree of bending at the fixed position, affecting the use effect. To overcome this problem, various types of brackets for fixing the catheter have appeared to limit the position of the catheter.

[0004] However, the existing brackets for fixing catheters can only fix the catheter in a single direction, and the interventional catheter sometimes needs to be clamped horizontally at the end, and sometimes needs to be clamped longitudinally at the skin insertion point, depending on the different intervention positions. The existing catheter fixing brackets cannot meet the flexible application requirements of interventional catheters in clinical practice, and have obvious limitations. Based on this, the present invention proposes a more flexible and versatile catheter fixing tool. Summary of the invention

[0005] The purpose of the present invention is to provide a novel catheter fixing device and an interventional system for cardiovascular and cerebrovascular treatment. The catheter fixing device can fix the catheter longitudinally or transversely according to the use position of the interventional catheter, and can effectively limit any position of the catheter, such as the end or the middle. It is easy and flexible to use, and overcomes the limitations of the existing fixed catheter bracket.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a catheter fixing device, comprising:

[0008] A support, wherein the support is provided with a longitudinal tube hole for allowing the catheter to pass longitudinally;

[0009] A transverse fixing member is arranged on the support, and the transverse fixing member is provided with a transverse tube hole for the conduit to pass through transversely;

[0010] The reinforcement piece is used to fix the support to the human body or one side of the human body.

[0011] Preferably, the transverse fixing member comprises:

[0012] A transverse fixing tube, wherein the inner cavity of the transverse fixing tube is the transverse tube hole;

[0013] A connecting rod, wherein the first end of the connecting rod is connected to the transverse fixing tube, and the second end of the connecting rod is movably connected to the support via an adjustment structure, and the adjustment structure can adjust the orientation of the transverse fixing tube relative to the support.

[0014] Preferably, the regulating structure comprises:

[0015] A mounting hole is formed on the support, and a hole wall of the mounting hole is provided with saw teeth; the second end of the connecting rod is movably inserted into the mounting hole and passes through the mounting hole;

[0016] Limiting plate 1 and limiting plate 2, both of which are arranged at the second end of the connecting rod, and the limiting plate 1 and limiting plate 2 are respectively located at both ends of the mounting hole, and the limiting plate 1 and limiting plate 2 are used to limit the axial movement of the connecting rod relative to the mounting hole;

[0017] A ball is movably embedded in the side wall of the second end of the connecting rod. The side wall of the connecting rod located between the limiting plate 1 and the limiting plate 2 is provided with a plurality of grooves at intervals along the circumference of the connecting rod. A ball is movably embedded in any of the grooves, and a spring is connected between the ball and the corresponding groove; the second end of the connecting rod is in rolling cooperation with the serrations through the ball.

[0018] Preferably, a conduit reinforcement structure 1 is further provided inside the transverse fixing cylinder, and the conduit reinforcement structure 1 includes a slide groove 1, a slider 1 and an arc-shaped fixing sheet, wherein:

[0019] The first slide groove is opened on the inner wall of the transverse fixing tube and arranged along the axial direction of the transverse fixing tube; a plurality of first slide grooves are arranged at intervals along the circumferential direction on the inner wall of the transverse fixing tube;

[0020] The slider 1 is slidably installed in any one of the slide grooves 1;

[0021] The arc-shaped fixing piece is located in the transverse fixing tube, and the slider 1 of any one of the slide grooves 1 is connected with the arc-shaped fixing piece. Any one of the arc-shaped fixing pieces protrudes toward the center of the transverse fixing tube, and all the arc-shaped fixing pieces enclose a space for the catheter to pass through, so as to clamp the catheter.

[0022] Preferably, the support is a hollow box-shaped support, which includes a box body and a box cover adapted to the box body; the box cover and the box body are both provided with the longitudinal tube holes, and the longitudinal tube holes on the box cover and the box body are coaxially aligned; the transverse fixing piece is arranged on the box cover.

[0023] Preferably, the hollow box-shaped support is also provided with an annular plug plate and an annular slot adapted to be plugged with the annular plug plate, wherein one of the annular plug plate and the annular slot is arranged at the opening edge of the box body, and the other is arranged at the opening edge of the box cover.

[0024] Preferably, a positioning structure is further provided between the box cover and the box body, and the positioning structure comprises a reinforcing foot and a reinforcing groove adapted to be plugged into the reinforcing foot, one of the reinforcing foot and the reinforcing groove is provided at the opening edge of the box body, and the other is provided at the opening edge of the box cover.

[0025] Preferably, a second conduit reinforcement structure is further provided in the hollow box-shaped support, and the second conduit reinforcement structure comprises:

[0026] A bottom plate is arranged in the box body, the bottom plate is provided with the longitudinal tube hole, and the bottom plate, the box cover and the longitudinal tube hole in the box body are coaxially aligned; an installation space is arranged in the bottom plate, and a second slide groove communicating with the installation space is arranged on the surface of the bottom plate;

[0027] A clamping assembly, comprising a clamping block 1 and a clamping block 2 arranged opposite to the clamping block 1, wherein the clamping block 1 and the clamping block 2 are both movably arranged on the surface of the bottom plate and are respectively located on both sides of the longitudinal pipe hole;

[0028] The clamping drive is arranged in the installation space, and an intermediate plate is arranged in the installation space. The clamping drive includes a sliding rod, a spring and a sliding block 2. The sliding rod is fixed in the installation space and passes through the intermediate plate. The sliding rod is located below the sliding groove 2 and is parallel to the sliding groove 2. Two sliding blocks 2 are slidably installed on the sliding rod, and the two sliding blocks 2 are respectively located on both sides of the intermediate plate, and any one of the sliding blocks 2 is connected to the intermediate plate through the spring, and the spring is movably sleeved on the sliding rod; the two sliding blocks 2 are respectively connected to the clamping block 1 and the clamping block 2 at the sliding groove 2, and the clamping block 1 and the clamping block 2 can approach each other or maintain a tendency to approach each other under the action of the two springs to clamp the conduit passing through the longitudinal pipe hole.

[0029] Preferably, two slide grooves 2 connected to the installation space are provided on the surface of the bottom plate, and the clamping drive is provided with two groups, and is arranged one-to-one with the two slide grooves 2, and one end of the clamping block 1 and the clamping block 2 is connected to the two sliders 2 of one group of the clamping drive, and the other end of the clamping block 1 and the clamping block 2 is connected to the two sliders 2 of the other group of the clamping drive.

[0030] Preferably, the reinforcement is a strap detachably connected to the hollow box-shaped support, and the hollow box-shaped support has a space therein capable of accommodating the strap.

[0031] The present invention also provides an interventional system for cardiovascular and cerebrovascular treatment, comprising an interventional catheter for cardiovascular and cerebrovascular treatment and a catheter fixing device as described above, wherein the interventional catheter for cardiovascular and cerebrovascular treatment can pass through the longitudinal tube hole or the transverse tube hole.

[0032] Compared with the prior art, the present invention has achieved the following technical effects:

[0033] The catheter fixing device proposed in the present invention has a novel and reasonable structure. By simultaneously providing a transverse tube hole for the catheter to pass through transversely and a longitudinal tube hole for the catheter to pass through longitudinally, the catheter can be fixed longitudinally or transversely according to the use position of the interventional catheter, so that the catheter can be effectively limited at any position such as the skin around the insertion point, or the end or middle of the catheter, and more than two catheters in any direction can be fixed at the same time, realizing a more flexible catheter fixing method and overcoming the limitations of the use of existing fixed catheter brackets. The catheter fixing device can be used for intraoperative or postoperative fixation of interventional catheters for cardiovascular and cerebrovascular treatment, with high flexibility, convenience and speed.

[0034] In some technical solutions disclosed in the present invention, by movably connecting the connecting rod of the transverse fixing member to the support through an adjustment structure, the position of the transverse fixing tube relative to the support can be adjusted through the adjustment structure, so that the direction of the transverse fixing tube is diversified, meeting the fixing requirements of catheters in different directions, and further improving the flexibility and convenience of the catheter fixing device. In addition, two sets of transverse fixing members are arranged on the support at the same time, so that the catheter fixing device can fix more than two catheters in any direction within the transverse range, further expanding the catheter fixing method.

[0035] In some technical solutions disclosed in the present invention, the support adopts a hollow box shape, so that when not in use, the straps used to fix the patient can be stored in the box body, reducing scattered parts and making the catheter fixing device more regular as a whole.

[0036] In some technical solutions disclosed in the present invention, the support adopts a hollow box shape, and a positioning structure is set between the box cover and the box body, as well as a ring-shaped plug plate and a ring-shaped slot that cooperate with each other, which can ensure that the connection between the box cover and the box body is reliable and not easy to come off.

[0037] The interventional system for cardiovascular and cerebrovascular treatment proposed in the present invention includes the above-mentioned catheter fixing device. When in use, the interventional catheter is fixed by the above-mentioned catheter fixing device. It has all the characteristics of the above-mentioned catheter fixing device and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a schematic diagram of the overall structure of the catheter fixing device disclosed in an embodiment of the present invention;

[0040] Figure 2 It is a schematic diagram of the exploded structure of the catheter fixing device disclosed in an embodiment of the present invention;

[0041] Figure 3 It is a schematic cross-sectional structure diagram of a transverse fixing tube and an inner conduit reinforcement structure 1 thereof disclosed in an embodiment of the present invention;

[0042] Figure 4 It is a structural schematic diagram of a box cover in a catheter fixing device disclosed in an embodiment of the present invention;

[0043] Figure 5 It is a structural schematic diagram of the second catheter reinforcement structure in the box body of the catheter fixing device disclosed in an embodiment of the present invention;

[0044] Figure 6 It is a schematic diagram of the cross-sectional structure of the catheter reinforcement structure 2 disclosed in an embodiment of the present invention.

[0045] In the figure, the reference numerals are:

[0046] 100. Catheter fixing device;

[0047] 1. Support; 11. Box body; 12. Box cover; 13. Annular plug plate; 14. Annular slot; 15. Reinforcement foot; 16. Reinforcement slot; 17. Pipe reinforcement structure II; 171. Bottom plate; 172. Installation space; 173. Slide slot II; 174. Clamping block I; 175. Clamping block II; 176. Middle plate; 177. Slide bar; 178. Spring; 179. Slide block II; 18. Space;

[0048] 2. Longitudinal tube holes;

[0049] 3. Horizontal fixing member; 31. Horizontal pipe hole; 32. Horizontal fixing tube; 33. Connecting rod; 34. Mounting hole; 35. Limiting plate 1; 36. Limiting plate 2; 37. Ball bearing; 38. Pipe reinforcement structure 1; 381. Slide groove 1; 382. Sliding block 1; 383. Arc-shaped fixing piece;

[0050] 4. Reinforcement;

[0051] 5. Catheter. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] One of the purposes of the present invention is to provide a novel catheter fixing device, which can fix the catheter longitudinally or transversely according to the use position of the interventional catheter, and can effectively limit any position of the catheter, such as the end or the middle. It is easy and flexible to use, and overcomes the limitations of the existing fixed catheter bracket.

[0054] Another object of the present invention is to provide an interventional system for cardiovascular and cerebrovascular treatment comprising the above-mentioned catheter fixing device.

[0055] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0056] Example 1

[0057] like Figure 1 to Figure 6As shown, this embodiment proposes a catheter fixing device 100, which mainly includes a support 1, a transverse fixing member 3 and a reinforcement member 4. The support 1 is provided with a longitudinal tube hole 2 for the catheter 5 to pass longitudinally. The transverse fixing member 3 is arranged on the support 1. The transverse tube hole 31 for the catheter 5 to pass transversely is arranged on the transverse fixing member 3. The transverse tube hole 31 is non-parallel to the aforementioned longitudinal tube hole 2 (preferably, the transverse tube hole 31 is perpendicular to the aforementioned longitudinal tube hole 2), which can meet the fixation of the catheter 5 in different directions. The reinforcement member 4 is mainly used to fix the support 1 on the human body or other objects on one side of the human body. The catheter fixing device 100 can fix the catheter longitudinally or transversely according to the use position of the interventional catheter by simultaneously providing the transverse tube hole 31 for the catheter 5 to pass transversely and the longitudinal tube hole 2 for the catheter 5 to pass longitudinally, so that the catheter can be effectively limited at any position such as the skin around the insertion point or the end or middle of the catheter, and can simultaneously fix more than two catheters in any direction, realizing a more flexible catheter fixing method, overcoming the use limitations of the existing fixed catheter bracket. The catheter fixing device 100 can be used for intraoperative or postoperative fixation of interventional catheters for cardiovascular and cerebrovascular treatments, and has high flexibility and is convenient and quick.

[0058] In this embodiment, Figure 1 and Figure 2 As shown, the above-mentioned transverse fixing member 3 includes a transverse fixing cylinder 32 and a connecting rod 33. The inner cavity of the transverse fixing cylinder 32 is a transverse tube hole 31 coaxial with the transverse fixing cylinder 32, and both ends of the transverse fixing cylinder 32 are opened; the first end of the connecting rod 33 is connected to the transverse fixing cylinder 32, and the second end of the connecting rod 33 is movably connected to the support 1 through an adjustment structure, and the adjustment structure can adjust the orientation of the transverse fixing cylinder 32 relative to the support 1.

[0059] In this embodiment, the connecting rod 33 is preferably arranged perpendicular to the transverse fixing tube 32, and the transverse fixing tube 32 is perpendicular to the longitudinal tube hole 2. The adjustment structure of the second end of the connecting rod 33 can adopt a translation adjustment mechanism, a two-dimensional adjustment mechanism, a three-dimensional adjustment mechanism or a rotation adjustment mechanism according to clinical needs. In this embodiment, the preferred adjustment structure is a rotation adjustment mechanism, such as Figure 2As shown, the rotation adjustment mechanism specifically includes a mounting hole 34, a limiting plate 1 35, a limiting plate 2 36 and a ball 37, wherein: the mounting hole 34 is opened on the support 1, and the hole wall of the mounting hole 34 is provided with a full circle of saw teeth, the second end of the connecting rod 33 is movably inserted into the mounting hole 34 and passes through the mounting hole 34; the limiting plate 1 35 and the limiting plate 2 36 are both provided at the second end of the connecting rod 33, and the limiting plate 1 35 and the limiting plate 2 36 are respectively located at the two ends of the hole of the mounting hole 34, and the limiting plate 1 35 and the limiting plate 2 36 are respectively located at the two ends of the hole of the mounting hole 34, and the limiting plate 1 35 and the limiting plate 2 36 are respectively located at the two ends of the hole of the mounting hole 34. 6 is used to limit the axial movement of the connecting rod 33 relative to the mounting hole 34, and prevent the connecting rod 33 and the mounting hole 34 from being separated from each other. As a preferred solution, the aforementioned limit plate 2 36 is arranged at the second end of the connecting rod 33, and the limit plate 1 35 is located above the limit plate 2 36 and is arranged at intervals from the limit plate 2 36. The limit plate 1 35 and the limit plate 2 36 are preferably annular structures. The limit plate 1 35 and the limit plate 2 36 can be connected to the connecting rod 33 in the form of threaded connection, which is convenient for disassembly and maintenance of the connecting rod 33. The side wall of the connecting rod 33 located between the limit plate 1 35 and the limit plate 2 36 is provided with a plurality of grooves spaced along the circumference of the connecting rod 33. A ball 37 is movably embedded in any groove, and a spring is connected between each ball 37 and the corresponding groove. Under the action of the spring and external force, the ball 37 can shrink relative to the groove, and the second end of the connecting rod 33 rolls with the serrated surface of the mounting hole 34 through the ball 37. It should be noted that there is a sawtooth gap between each two adjacent saw teeth. When the connecting rod 33 is in a stationary state, the ball 37 protrudes from the side wall surface of the connecting rod 33 under the support of the spring and is embedded in the sawtooth gap. By rotating the connecting rod 33, the ball 37 can be transferred from one sawtooth gap to an adjacent sawtooth gap. During this rotation, the ball 37 rolls with the saw teeth and shrinks toward the groove under the pushing action of the saw teeth, and compresses the spring to ensure that the ball 37 can pass through the saw teeth. After the ball 37 moves to the next sawtooth gap, the pushing action of the saw teeth on the ball 37 disappears, the spring is reset, and the ball 37 is moved to the next sawtooth gap. The ball 37 is pushed to its original position (i.e., the ball 37 protrudes from the side wall surface of the connecting rod 33 under the support of the spring). Based on the above structure, an intermittent rolling connection between the second end of the connecting rod 33 and the serrated surface of the mounting hole 34 is achieved, that is, the connecting rod 33 can be rotated once in the mounting hole 34 and limited after the rotation, so that it can only rotate a limited angle at a time, and the rotation can be limited without the aid of other methods; through the rotation of the connecting rod 33, the transverse fixing tube 32 can be oriented in different directions, so that the transverse guide tubes in different directions can be transversely fixed, which is flexible to use.

[0060] In this embodiment, Figure 3As shown, a catheter reinforcement structure 38 is also provided inside the transverse fixing cylinder 32, which is mainly used to fix the catheter 5 passing through transversely. The catheter reinforcement structure 38 includes a slide groove 381, a slider 382 and an arc-shaped fixing piece 383, wherein: the slide groove 381 is provided on the inner wall of the transverse fixing cylinder 32 and arranged along the axial direction of the transverse fixing cylinder 32; a plurality of slide grooves 381 are arranged at intervals along the circumferential direction on the inner wall of the transverse fixing cylinder 32; a slider 382 is slidably installed in any slide groove 381; the arc-shaped fixing piece 383 is located in the transverse fixing cylinder 32, and an arc-shaped fixing piece 383 is connected to the slider 382 of any slide groove 381, and any arc-shaped fixing piece 383 protrudes toward the center of the transverse fixing cylinder 32, and all the arc-shaped fixing pieces 383 enclose a space for the catheter 5 to pass through, and a plurality of arc-shaped fixing pieces 383 can clamp the catheter 5 from the peripheral direction. The above-mentioned slider 382 and the arc-shaped fixing piece 383 are preferably metal structures. The slider 382 is slidably connected to the slide groove 381. When the guide tube 5 is passed through the transverse fixing tube 32, the guide tube 5 in the transverse fixing tube 32 will squeeze the arc-shaped fixing piece 383 toward the periphery, causing the arc-shaped fixing piece 383 to deform (the purpose of the deformation is to adapt to the outer diameter of the guide tube 5, so as to ensure that the guide tube 5 will not be squeezed on the basis of firmly clamping the guide tube 5). At the same time, the guide tube 5 will also use the friction force to drive the arc-shaped fixing piece 383 to slide along the slide groove 381. The sliding cooperation between the slider 382 and the slide groove 381 can guide the sliding of the arc-shaped fixing piece 383. At the same time, the limiting effect of the end of the slide groove 381 on the slider 382 can ensure that the arc-shaped fixing piece 383 will not fall off.

[0061] In this embodiment, Figure 1 , Figure 2 and Figure 4 As shown, the support 1 is preferably a hollow box-shaped support, which includes a box body 11 and a box cover 12 adapted to the box body 11; the box cover 12 and the box body 11 are both provided with longitudinal tube holes 2, and the longitudinal tube holes 2 on the box cover 12 and the box body 11 are coaxially aligned, and the longitudinal tube holes 2 on the box cover 12 and the box body 11 are connected to form a longitudinal tube channel for the conduit 5 to pass through. The aforementioned transverse fixing member 3 is arranged on the box cover 12, that is, the mounting hole 34 is provided on the box cover 12. Generally, the hollow box-shaped support is designed as a small structure with a small volume, and generally a single longitudinal tube channel is provided on the hollow box-shaped support. The transverse fixing member 3 is preferably provided in one or two groups on the box cover 12, such as Figure 1 and Figure 2 As shown, a structure is provided with two groups of transverse fixing members 3 .

[0062] Furthermore, in this embodiment, the hollow box-shaped support is further provided with an annular plug plate 13 and an annular slot 14 adapted to be plugged with the annular plug plate 13, wherein one of the annular plug plate 13 and the annular slot 14 is provided at the opening edge of the box body 11, and the other is provided at the opening edge of the box cover 12. Figure 1 , Figure 2 and Figure 4 As shown, in the embodiment, the annular slot 14 is preferably opened at the opening edge of the box body 11, and the annular plug plate 13 is arranged at the opening edge of the box cover 12. The annular plug plate 13 and the annular slot 14 not only play a positioning role, but also increase the contact area between the box cover 12 and the box body 11, so that the box cover 12 and the box body 11 are tightly connected and not easy to be disengaged.

[0063] Furthermore, in this embodiment, a positioning structure is further provided between the box cover 12 and the box body 11, and the positioning structure includes a reinforcing foot 15 and a reinforcing groove 16 adapted to be plugged with the reinforcing foot 15, one of the reinforcing foot 15 and the reinforcing groove 16 is provided at the opening edge of the box body 11, and the other is provided at the opening edge of the box cover 12. Figure 2 and Figure 4 As shown, in the embodiment, the reinforcing groove 16 is preferably opened at the opening edge of the box body 11, and the reinforcing foot 15 is arranged at the opening edge of the box cover 12. It is further preferred that the reinforcing foot 15 is columnar, and the corresponding reinforcing groove 16 is a columnar hole. At the same time, it is preferred that multiple groups of positioning structures are arranged at intervals along the circumferential direction between the box cover 12 and the box body 11, such as Figure 1 and Figure 2 As shown, the box cover 12 and the box body 11 are both square structures, and the aforementioned positioning structures can be respectively provided at the four corners of the box cover 12 and the box body 11. The reinforcing feet 15 and the reinforcing grooves 16 not only play a positioning role, but also increase the contact area and friction between the box cover 12 and the box body 11, so that the box cover 12 and the box body 11 are tightly connected and not easy to be disengaged.

[0064] Furthermore, in this embodiment, it is preferred that a conduit reinforcement structure 17 is also provided in the hollow box-shaped support, which is mainly used to fix the conduit 5 passing through the longitudinal tube hole 2 longitudinally. Figure 5 and Figure 6As shown, the catheter reinforcement structure 17 specifically includes a base plate 171, a clamping assembly and a clamping drive, wherein the base plate 171 is arranged in the box body 11, a longitudinal tube hole 2 is opened on the base plate 171, and the longitudinal tube hole 2 on the base plate 171, the box cover 12 and the box body 11 are coaxially aligned, and at this time, the longitudinal tube hole 2 on the base plate 171, the box cover 12 and the box body 11 are connected to form a longitudinal tube channel for the catheter 5 to pass through. The bottom plate 171 is provided with an installation space 172, and a second slide groove 173 communicating with the installation space 172 is provided on the surface of the bottom plate 171; the clamping assembly includes a clamping block 174 and a clamping block 175 arranged opposite to the clamping block 174, and the clamping block 174 and the clamping block 175 are both movably arranged on the surface of the bottom plate 171 and are respectively located on both sides of the longitudinal pipe hole 2; the clamping drive is arranged in the installation space 172, and an intermediate plate 176 is arranged in the installation space 172, and the clamping drive includes a slide bar 177, a spring 178 and a slide bar 179, and the slide bar 177 is fixed in the installation space 172 and passes through the intermediate plate 176, and the slide bar 177 Located below the second slide groove 173 and parallel to the second slide groove 173; two sliders 179 are slidably installed on the slide rod 177, and the two sliders 179 are respectively located on both sides of the middle plate 176, and any slider 179 is connected to the middle plate 176 through a spring 178, and the spring 178 is movably mounted on the slide rod 177; the two sliders 179 are respectively connected to the clamping block 174 and the clamping block 175 at the second slide groove 173, and the clamping block 174 and the clamping block 175 can approach each other or maintain a tendency to approach each other under the action of the two springs 178, so as to clamp the conduit 5 passed through the longitudinal pipe hole 2 (i.e., the longitudinal pipe channel).

[0065] Furthermore, preferably, the surface of the bottom plate 171 is provided with two second slide grooves 173 communicating with the installation space 172. Correspondingly, two groups of clamping drives are provided, and the two groups of clamping drives are arranged one-to-one with the two slide grooves 173. Generally, the clamping drive is provided directly below the corresponding slide groove 173. Based on this, one end of the clamping block 174 and the clamping block 175 is respectively connected to the two sliders 179 in one group of clamping drives, and the other end of the clamping block 174 and the clamping block 175 is respectively connected to the two sliders 179 in the other group of clamping drives, which is equivalent to that in the clamping block 174 and the clamping block 175, both ends of each clamping block are respectively connected to a group of sliders 179 of the clamping drive.

[0066] Furthermore, in order to avoid damage or excessive squeezing of the catheter when the clamping block clamps the catheter 5, it is preferred that the clamping block 1 174 and the clamping block 2 175 are both curved clamping blocks, such as Figure 5 As shown, the inner side surfaces of the clamping block 1 174 and the clamping block 2 175 are both smooth arc surfaces.

[0067] In this embodiment, the reinforcing member 4 is preferably a strap detachably connected to the hollow box-shaped support, and the hollow box-shaped support has a space 18 for accommodating the strap. The strap can be stored in the hollow box-shaped support when not in use, which reduces scattered accessories and is convenient to use. The above-mentioned strap can specifically be an elastic strap, and its two ends can be provided with connecting components such as Velcro and buckles, which are convenient for connecting or detaching the strap when the support is fixed with the strap. Taking Velcro at both ends of the strap as an example, when using it, after taking out the strap, close the box cover 12, and then pass the strap between the two connecting rods 33 on the box cover 12, and then pass the two ends of the strap around the patient's arm and fix it with Velcro.

[0068] The following is a detailed description of the method and principle of use of the catheter fixing device 100 of this embodiment:

[0069] When in use, take out the strap 4 in the box body 11, close the box cover 12, and then pass the strap through the two connecting rods 33 on the box cover 12, and the two ends of the strap are passed around the patient's arms and fixed by Velcro.

[0070] When fixing the catheter 5 in the vertical direction: the catheter 5 passes longitudinally through the longitudinal tube channel formed by the longitudinal tube hole 2 on the bottom plate 171, the box cover 12 and the box body 11, and the catheter 5 can be inserted into the patient's skin. The catheter 5 is fixed by the longitudinal tube channel, so that this part of the catheter 5 is not easy to bend, so as to avoid affecting the effect during the operation. After the catheter 5 passes through the longitudinal tube channel, the clamping block 1 174 and the clamping block 2 175 on both sides clamp and limit the catheter 5, so that the catheter 5 is not easy to shake in the longitudinal tube channel.

[0071] When fixing the transverse conduit 5: insert the conduit 5 into the corresponding transverse fixing tube 32, and use the arc-shaped fixing piece 383 to squeeze and limit the outer periphery of the conduit 5. The structure is simple and no external force is required. If the angle of the conduit 5 needs to be changed, the connecting rod 33 under the transverse fixing tube 32 can be rotated. By setting two sets of transverse fixing members 3 at the same time, the conduits 5 in two different directions can be fixed transversely, which is flexible to use.

[0072] Example 2

[0073] This embodiment provides an interventional system for cardiovascular and cerebrovascular treatment, including an interventional catheter for cardiovascular and cerebrovascular treatment and a catheter fixing device 100 disclosed in Embodiment 1. The interventional catheter for cardiovascular and cerebrovascular treatment can be fixed through the longitudinal tube hole 2 or the transverse tube hole 31. The specific structure and use principle of the catheter fixing device 100 are all referred to in Embodiment 1, and will not be repeated here.

[0074] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A catheter fixing device, characterized in that: include: A support (1), wherein the support (1) is provided with a longitudinal tube hole (2) for allowing a conduit (5) to pass longitudinally; A transverse fixing member (3) is arranged on the support (1), and the transverse fixing member (3) is provided with a transverse tube hole (31) for the conduit (5) to pass through transversely; A reinforcing member (4) is used to fix the support (1) to the human body or one side of the human body.

2. The catheter fixing device according to claim 1, characterized in that: The transverse fixing member (3) comprises: A transverse fixing tube (32), wherein the inner cavity of the transverse fixing tube (32) is the transverse tube hole (31); A connecting rod (33), wherein a first end of the connecting rod (33) is connected to the transverse fixing tube (32), and a second end of the connecting rod (33) is movably connected to the support (1) via an adjustment structure, wherein the adjustment structure is capable of adjusting the orientation of the transverse fixing tube (32) relative to the support (1).

3. The catheter fixing device according to claim 2, characterized in that: The regulatory structure comprises: A mounting hole (34) is formed on the support (1), and a hole wall of the mounting hole (34) is provided with saw teeth; the second end of the connecting rod (33) is movably inserted into the mounting hole (34) and passes through the mounting hole (34); A limit plate 1 (35) and a limit plate 2 (36), wherein the limit plate 1 (35) and the limit plate 2 (36) are both arranged at the second end of the connecting rod (33), and the limit plate 1 (35) and the limit plate 2 (36) are respectively located at the two ends of the mounting hole (34), and the limit plate 1 (35) and the limit plate 2 (36) are used to limit the axial movement of the connecting rod (33) relative to the mounting hole (34); A ball (37) is movably embedded in the side wall of the second end of the connecting rod (33); the side wall of the connecting rod (33) located between the limiting plate 1 (35) and the limiting plate 2 (36) is provided with a plurality of grooves at intervals along the circumference of the connecting rod (33); a ball (37) is movably embedded in any of the grooves, and a spring is connected between the ball (37) and the corresponding groove; the second end of the connecting rod (33) is in rolling cooperation with the sawtooth through the ball (37).

4. The catheter fixing device according to claim 2, characterized in that: A conduit reinforcement structure 1 (38) is also provided inside the transverse fixing cylinder (32), and the conduit reinforcement structure 1 (38) includes a slide groove 1 (381), a slider 1 (382) and an arc-shaped fixing sheet (383), wherein: The slide groove 1 (381) is opened on the inner wall of the transverse fixing cylinder (32) and arranged along the axial direction of the transverse fixing cylinder (32); the inner wall of the transverse fixing cylinder (32) is provided with a plurality of slide grooves 1 (381) at intervals along the circumferential direction; The slider 1 (382) is slidably installed in any one of the slide grooves 1 (381); The arc-shaped fixing piece (383) is located in the transverse fixing tube (32), and the sliding block (382) of any one of the sliding grooves (381) is connected with the arc-shaped fixing piece (383). Any one of the arc-shaped fixing pieces (383) protrudes toward the center of the transverse fixing tube (32), and all the arc-shaped fixing pieces (383) enclose a space for the conduit (5) to pass through, so as to clamp the conduit (5).

5. The catheter fixing device according to any one of claims 1 to 4, characterized in that: The support (1) is a hollow box-shaped support, comprising a box body (11) and a box cover (12) adapted to the box body (11); the box cover (12) and the box body (11) are both provided with the longitudinal tube hole (2), and the longitudinal tube hole (2) on the box cover (12) and the box body (11) are coaxially aligned; the transverse fixing member (3) is arranged on the box cover (12).

6. The catheter fixing device according to claim 5, characterized in that: The hollow box-shaped support is also provided with an annular plug plate (13) and an annular slot (14) adapted to be plugged with the annular plug plate (13), wherein one of the annular plug plate (13) and the annular slot (14) is arranged at the opening edge of the box body (11), and the other is arranged at the opening edge of the box cover (12).

7. The catheter fixing device according to claim 5, characterized in that: A positioning structure is also provided between the box cover (12) and the box body (11), the positioning structure comprising a reinforcing foot (15) and a reinforcing groove (16) adapted to be plugged into the reinforcing foot (15), one of the reinforcing foot (15) and the reinforcing groove (16) being provided at an opening edge of the box body (11), and the other being provided at an opening edge of the box cover (12).

8. The catheter fixing device according to claim 5, characterized in that: The hollow box-shaped support is also provided with a second conduit reinforcement structure (17), and the second conduit reinforcement structure (17) comprises: A bottom plate (171) is arranged in the box body (11); the bottom plate (171) is provided with the longitudinal tube hole (2); and the bottom plate (171), the box cover (12) and the longitudinal tube hole (2) on the box body (11) are coaxially aligned; an installation space (172) is arranged in the bottom plate (171); a second slide groove (173) communicating with the installation space (172) is arranged on the surface of the bottom plate (171); A clamping assembly, comprising a clamping block 1 (174) and a clamping block 2 (175) arranged opposite to the clamping block 1 (174), wherein the clamping block 1 (174) and the clamping block 2 (175) are both movably arranged on the surface of the bottom plate (171) and are respectively located on both sides of the longitudinal tube hole (2); A clamping drive is arranged in the installation space (172), and an intermediate plate (176) is arranged in the installation space (172). The clamping drive includes a slide bar (177), a spring (178) and a second slide block (179). The slide bar (177) is fixed in the installation space (172) and passes through the intermediate plate (176). The slide bar (177) is located below the second slide groove (173) and is parallel to the second slide groove (173). Two second slide blocks (179) are slidably installed on the slide bar (177). The two second slide blocks (179) are respectively located on the intermediate plate The two sliders (179) are connected to the middle plate (176) via the spring (178), and the spring (178) is movably mounted on the slide bar (177); the two sliders (179) are respectively connected to the clamping block (174) and the clamping block (175) at the slide groove (173), and the clamping block (174) and the clamping block (175) can approach each other or maintain a tendency to approach each other under the action of the two springs (178) to clamp the conduit (5) passed through the longitudinal pipe hole (2).

9. The catheter fixing device according to claim 5, characterized in that: The reinforcing member (4) is a binding strap detachably connected to the hollow box-shaped support, and the hollow box-shaped support has a space (18) capable of accommodating the binding strap.

10. An interventional system for cardiovascular and cerebrovascular treatment, characterized in that: It comprises an interventional catheter for cardiovascular and cerebrovascular treatment and a catheter fixing device (100) according to any one of claims 1 to 9, wherein the interventional catheter for cardiovascular and cerebrovascular treatment can pass through the longitudinal tube hole (2) or the transverse tube hole (31).

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