CN113521500A

CN113521500A - Vascular intervention catheter guide wire control device and control method thereof

Info

Publication number: CN113521500A
Application number: CN202110796963.7A
Authority: CN
Inventors: 韩永生; 汪庆童; 韩宇阳
Original assignee: Hefei Aokam Medical Technology Co ltd
Current assignee: Hefei Aokam Medical Technology Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2021-10-22

Abstract

The invention discloses a control device and a control method for a guide wire of a vascular intervention catheter, wherein the device comprises the following components: a carrier; the pipe control assembly is arranged at one end of the upper side of the carrier and used for limiting the pipe connecting assembly to generate axial displacement or circumferential rotation displacement after being clamped and connected, and further limiting the pipe fixedly connected with the pipe connecting assembly to generate axial displacement or circumferential rotation displacement; the guide wire control assembly is arranged at the other end of the upper side of the carrier and is used for being locked after being clamped into the guide wire, and then the relative position between the catheter and the guide wire penetrating into the catheter is kept fixed. The invention changes the state that the catheter and the guide wire are not controlled by the operator in most of time in the traditional vascular intervention process, so that the catheter and the guide wire are effectively controlled by the operator in the whole process of the operation, and the relative position relation between the guide wire and the catheter can not be obviously changed because of the change of the body position of the patient.

Description

Vascular intervention catheter guide wire control device and control method thereof

Technical Field

The invention relates to the technical field of medical appliances, in particular to a vascular intervention catheter guide wire control device and a control method thereof.

Background

Diagnostic procedures using a contrast Catheter (intravascular cathter) and endovascular treatment procedures using a Guiding Catheter (intravascular cathter) are collectively referred to as vascular interventional procedures. The basic principles and procedures of different vascular interventions vary greatly, for example, coronary interventions include the following steps: 1) a sheath catheter is inserted through the approach puncture of the radial artery or the femoral artery and the like by the Seldinger technology, a contrast catheter or a guide catheter is inserted along the artery sheath catheter, or a specially designed unsheathed catheter is directly inserted after the artery puncture is successful; 2) delivering a guidewire along the guide catheter to the target vascular site; 3) various types of PTCA dilatation balloons, stent delivery systems, etc. are fed over the guidewire.

The vascular intervention is widely applied to the fields of cardiovascular diseases, cerebrovascular diseases, peripheral blood vessels, tumor treatment and the like, and the basic principles of various types of vascular intervention are different greatly. Taking coronary artery interventional diagnosis and treatment as an example, the exposed part of the catheter in the interventional operation process generally has two states: 1) is in the control state of the operator; 2) a free state. The catheter is in a free state in most of time in the operation process, and is easily influenced by various factors to generate axial displacement or circumferential rotation, the movement can be transmitted to the front end of the catheter to change the relative position of the catheter and a blood vessel, the catheter can be separated from an opening of a target blood vessel or deeply inserted in serious cases, a guide wire walking in the catheter can generate absolute or relative displacement, the smooth operation is influenced, and even the operation safety is threatened. There are also several states for guidewires: 1) is in the control state of the operator; 2) in an assistant control state; 3) a free state. Similarly, the guide wire in the operation process is in a free state most of the time, the guide wire in the free state can be axially displaced, the guide wire can fall off if the guide wire is light, the guide wire can be mistakenly inserted into a non-target blood vessel to cause vascular accidental injury if the guide wire is heavy, and the guide wire can be wound due to the fact that the tail end of the guide wire is displaced in the horizontal direction when more than two guide wires exist in the catheter, so that smooth operation of a bracket, a balloon and the like is hindered.

The stability of the catheter and the guide wire is the key for the smooth proceeding and success of interventional diagnosis and treatment, and researches show that about 50 percent of coronary artery perforation is related to the guide wire, and the effective fixation of the guide wire is an important measure for preventing interventional complications caused by the guide wire. The stability of the guide wire and the guide pipe mainly comprises the following contents: 1) the axial position of the catheter and the guide wire head end; 2) the circumferential position of the catheter; 3) relative position between catheter and guidewire; 4) when there are two or more guide wires, it is necessary to consider also the winding between the guide wires due to the horizontal displacement of the tail end.

The more complex the interventional operation, the higher the requirements for stability of guide wires and catheters, for example, in the process of opening Chronic Total Occlusion (CTO) operation by using an interventional method, the time taken by an interventionalist to operate the guide wire to reach the true lumen of a blood vessel through an Occlusion section is usually the most time-consuming in all operation links. After the guide wire passes through the occlusion section, if the fact that the far end of the guide wire is located in the true lumen of the blood vessel can be confirmed, the fact that the operation is successful and nearby is often meant, but at the moment, if the guide wire exits the occlusion section accidentally, the guide wire possibly causes the previous work to be abandoned, and even the operation fails. Generally speaking, the more experienced interventionalists have the higher ability to steer the catheter and guidewire, and the more common surgeons, especially beginners, often need to expend more effort overcoming the surgical difficulties associated with catheter and guidewire instability.

As described above, under the current circumstances, an interventional physician is almost impossible to control the whole process of a catheter and a guide wire, and an operator cannot and does not need to concentrate all energy on the stability of the catheter all the time during an operation.

According to Chinese adult human body size (GB10000-88), the average hip width of Chinese adults and women is 306mm and 317mm respectively, while the average width of a common ductal bed main body is 480mm-500mm, and when a patient lies on the ductal bed in the middle, the rest width at two sides is less than 100 mm. Moreover, after the sterile operation drape is laid on the whole body of the patient, the main operation area of the interventional physician is often in a narrow slope shape (as shown in fig. 14), the support below the patient is not sufficient during operation, the catheter, the guide wire and the like are very unstable, the body of the patient moves, or the operator and an assistant can cause the guide wire and the catheter to shift or even slide off slightly carelessly, and the problem cannot be solved well even if the widened backing plate is placed below the body of the patient.

The invention provides an operating device and a control method thereof for assisting in controlling the stability of a catheter and a guide wire in a blood vessel interventional diagnosis and treatment process.

Disclosure of Invention

The present invention is directed to overcoming the above problems in the conventional art, and to provide a control device and a control method for a guide wire of a catheter for vascular intervention.

In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:

a vascular interventional catheter guidewire control device, comprising:

a carrier;

the guide pipe control assembly is arranged at one end of the upper side of the carrier and used for limiting the guide pipe connecting assembly to generate axial displacement or circumferential rotation displacement after being clamped, so that the tail end of a guide pipe fixedly connected with the guide pipe connecting assembly in a clamped mode is limited to generate axial displacement or circumferential rotation displacement;

the guide wire control assembly is arranged at the other end of the upper side of the carrier and is used for being locked after being clamped into the guide wire, and then the relative position between the catheter and the guide wire penetrating into the catheter is kept fixed.

Furthermore, in the above vascular intervention catheter guide wire control device, the catheter connection assembly is a Y-shaped hemostatic valve or a communicating plate, and the Y-shaped hemostatic valve and the communicating plate are provided with an outer conical joint for connecting with an inner conical joint at the tail end of the catheter; after the conduit control assembly is clamped with the conduit connecting assembly, the axial displacement or the circumferential rotation displacement of the upper and lower conical joints can be limited, and the axial displacement or the circumferential rotation displacement of the conduit fixedly connected with the outer conical joint through the inner conical joint at the tail end is further limited.

Further, in the above blood vessel intervention catheter guide wire control device, the catheter control assembly is a combined clamping member or an integrated U-shaped elastic tube clamp.

Furthermore, in the above vascular intervention catheter guidewire control device, the combined clamping member is composed of a rigid outer frame and an elastic supporting body loaded therein, and after the accommodating cavity of the elastic supporting body is clamped into the outer conical joint, the outer conical joint is clamped by using its own deformation restoring force and is limited to perform free circumferential rotational displacement; rigid frame, elastic support body are formed with the location chamber jointly, behind the outer cone joint is gone into to the location chamber card, can restrict its axial displacement that appears, the rigid frame is equipped with the installation cavity that is used for loading elastic support body, the both sides board that the rigid frame is located the installation cavity is equipped with the open slot respectively.

Furthermore, in the above blood vessel intervention catheter guide wire control device, the inner wall of the elastic support body located in the accommodating cavity is provided with an anti-slip structure, the anti-slip structure is an anti-slip groove or an anti-slip bump, one side of the elastic support body located in the accommodating cavity is provided with an axial positioning groove, and the axial positioning groove and the side plate of the rigid outer frame jointly enclose a positioning cavity.

Further, in the above vascular intervention catheter guidewire control device, the guidewire control component is a combined locking piece or an integrated quick clamp.

Further, among the above-mentioned catheter seal wire controlling means is intervene to blood vessel, the combination formula locking piece includes rigidity holder, elasticity centre gripping body and retaining member, install elasticity centre gripping body and retaining member in the rigidity holder, elasticity centre gripping body itself has been seted up or is formed with the slot of being convenient for the card income seal wire between rigidity holder, the elasticity centre gripping body, the retaining member can extrude the elasticity centre gripping body, and then makes the seal wire position of wearing to establish in the slot fixed, realizes locking.

Further, among the above-mentioned vessel intervention pipe seal wire controlling means, the retaining member is the screw rod of taking the spanner, set up the mounting groove of being convenient for install the elasticity centre gripping body in the rigidity centre gripping seat, the lateral part of rigidity centre gripping seat seted up with screw rod complex screw hole, and screw hole and mounting groove intercommunication, the side of elasticity centre gripping body seted up with screw rod complex location shallow slot.

A control method of a guide wire of a vascular intervention catheter specifically comprises the following steps:

1) conveying the contrast catheter to the root of the aorta under the guidance of the contrast guide wire, adjusting the contrast catheter to reach the opening of a target blood vessel, connecting an outer conical joint on the communicating plate with an inner conical joint at the tail end of the contrast catheter, and clamping and fixing the outer conical joint of the communicating plate by using the catheter control assembly;

2) checking and confirming the position of the head end of the contrast catheter, and starting contrast checking when the proper position of the contrast catheter is confirmed;

3) when the fact that the intervention treatment is not needed immediately after the radiography is completed is determined, the operation is completed after the radiography catheter is withdrawn; and when the interventional therapy is determined to be required immediately after the radiography is finished, withdrawing the radiography catheter, conveying the catheter to the target blood vessel position under the guidance of the radiography guide wire, fixing an outer conical joint of a Y-shaped hemostasis valve connected with the tail end of the catheter by using a catheter control assembly, and then carrying out the interventional therapy operation.

1) after the distal end of the catheter reaches the target vascular site, the carrier is fixed or placed in place, and then the catheter control assembly is used to snap-fit the Y-hemostasis valve;

2) after interventional therapy begins, a guide wire is operated and guided to reach a target position of a blood vessel to be intervened, a PTCA (percutaneous transluminal coronary angioplasty) dilatation balloon and a stent delivery system are delivered along the guide wire in a relative motion mode, when the head ends of the PTCA dilatation balloon and the stent delivery system reach the opening of a Y-shaped hemostatic valve, the tail end of the guide wire is locked by a guide wire control assembly, the Y-shaped hemostatic valve is loosened, the PTCA dilatation balloon and the stent delivery system are continuously delivered along the guide wire until the guide wire outlet port of the PTCA dilatation balloon or the stent delivery system passes through the opening of the Y-shaped hemostatic valve, the Y-shaped hemostatic valve is closed to reduce bleeding, then one hand is used for fixing the guide wire, the relative position of the guide wire and the catheter is kept stable, and the other hand is used for continuously pushing the PTCA dilatation balloon or the stent delivery system until the target position is reached;

3) when the PTCA expanding saccule and the stent delivery system are operated in a target blood vessel, the guide wire control assembly is loosened to release the tail end of the guide wire, one hand is used for fixing the guide wire, the other hand is used for withdrawing the PTCA expanding saccule or the stent delivery system until the PTCA expanding saccule or the stent delivery system returns to the inner side of the opening of the Y-shaped hemostatic valve, the Y-shaped hemostatic valve is opened, the PTCA expanding saccule or the stent delivery system continues to be withdrawn in a relative motion mode, when the head ends of the PTCA expanding saccule and the stent delivery system are completely exposed, the Y-shaped hemostatic valve is closed, the guide wire is fixed by one hand, the other hand is used for continuing to withdraw the PTCA expanding saccule and the stent delivery system until the PTCA expanding saccule and the stent delivery system are completely and smoothly withdrawn, and then the guide wire control assembly is used for fixing the tail end of the guide wire.

The invention has the beneficial effects that:

the invention changes the state that the catheter and the guide wire are not controlled by the operator for most of time in the traditional blood vessel interventional process, and leads the catheter and the guide wire to be effectively controlled by the operator in the whole interventional operation process. In the operation process, after the catheter connecting component (such as the outer conical joint connected with the inner conical joint at the tail end of the catheter) is placed inside the catheter control component, the tail end of the catheter cannot move along the axial direction or rotate randomly along the circumferential direction of the catheter, and therefore the stability of the head end of the catheter is greatly increased. When the catheter connecting assembly and the guide wire are respectively fixed by the catheter control assembly and the guide wire control assembly, the guide wire is not easy to move in the axial direction and the horizontal direction, the accidental injury of the blood vessel caused by the head end of the guide wire can be greatly reduced, the possibility of winding between the guide wires is very low, and an operator can independently complete the conveying of instruments such as a bracket, a balloon and the like by the aid of the catheter guide wire control device very easily. In addition, after the catheter connecting assembly and the guide wire are respectively fixed by the catheter control assembly and the guide wire control assembly, the relative position relation between the guide wire and the catheter cannot be obviously changed due to the change of the body position of the patient.

Of course, it is not necessary for any one product that embodies the invention to achieve all of the above advantages simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a first usage state of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic diagram of one configuration of a catheter control assembly;

FIG. 4 is a schematic structural view of a rigid housing of the guidewire control assembly;

FIG. 5 is a schematic view of the structure of the elastic support body in the guidewire control assembly;

FIG. 6 is a schematic view of one configuration of a guidewire control assembly;

FIG. 7 is a schematic structural view of a rigid clamping seat in the guidewire control assembly;

FIG. 8 is a schematic structural view of an elastic clamping body in the guidewire control assembly;

FIG. 9 is a schematic view of the retaining member of the guidewire control assembly;

FIG. 10 is a schematic structural view of a Y-shaped hemostatic valve;

FIG. 11 is a schematic view of a second usage state of the present invention;

FIG. 12 is a schematic view of a third state of use of the present invention;

FIG. 13 is a schematic view of the structure of the communication plate;

fig. 14 is a schematic position diagram of the main operation area of the operator in the background art.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to facilitate the operation to the maximum extent and improve the safety, the invention provides a method for fixing the catheter 6 only by one-step operation. Through comparative measurement, it is found that although the sizes of the conduits 6 of different models may be different, the lengths and the outer diameters of the inner conical joint at the tail end of the conduit 6 and the outer conical joint connected with the inner conical joint are substantially uniform, and the outer surface of the outer conical joint is designed with thick stripe protrusions to facilitate the rotation of the conduit, so that the outer conical joint is fixed to limit the axial and circumferential movements of the conduit 6. The inner part of the conduit control component 2 is a cavity structure which has certain elasticity and is consistent with the outline of the outer conical joint, under the condition that the inner conical joint at the tail end of the conduit 6 and the outer conical joint connected with the inner conical joint are locked, the tail end of the conduit can be fixed by putting the outer conical joint into the conduit control component 2, and the release of the conduit can be realized by taking out the outer conical joint in the same way.

Unlike the catheter 6 control, the guidewire 7 is made of metal and has a diameter of only 0.014 inch (0.03556 cm), and if a hard material is used for fixing the guidewire, the guidewire is easy to damage, and the guidewire is difficult to fix quickly. The invention provides a method for quickly fixing and releasing a guide wire without damaging the guide wire, wherein a narrow gap is reserved in an opening on one side (mostly the upper side) of an elastic structure, and the guide wire is quickly fixed by extruding the elastic structure. With this guide wire control assembly 3, the guide wire 7 can be controlled in at most two steps: (1) the guide wire is put into a slot reserved in the elastic clamping body; (2) and (4) quick locking.

The invention provides a vascular intervention catheter guide wire control device, which comprises a carrier 1, a catheter control component 2 and a guide wire control component 3, as shown in figures 1-10. The catheter control assembly 2 is arranged at one end of the upper side of the carrier 1 and used for limiting the axial displacement and the circumferential rotary displacement of an outer conical joint on the Y-shaped hemostatic valve 4 after being clamped and connected, and further limiting the axial displacement and the circumferential rotary displacement of a catheter 6 connected with the outer conical joint through an inner conical joint 5 at the tail end; the guide wire control component 3 is installed at the other end of the upper side of the carrier 1 and is used for being locked after being clamped into the guide wire 7, so that the relative position between the catheter 6 and the guide wire 7 arranged in the catheter is kept fixed.

In the invention, the catheter control assembly 2 comprises a rigid outer frame 201 and an elastic support body 202 loaded in the rigid outer frame, wherein the elastic support body 202 is provided with an accommodating cavity 206, and after the accommodating cavity 206 of the elastic support body 202 is clamped into the outer conical joint, the outer conical joint is clamped by using self deformation restoring force and is limited to perform free circumferential rotary displacement. The rigid outer frame 201 and the elastic support body 202 together form a positioning cavity, and after the positioning cavity is clamped into the outer conical joint, the axial displacement of the positioning cavity can be limited. The rigid outer frame 201 is provided with a mounting cavity 203 for loading the elastic support 202, and two side plates of the rigid outer frame 201, which are positioned in the mounting cavity 203, are respectively provided with an open groove 204. The inner wall of the elastic support 202 located in the accommodating cavity 206 is provided with an anti-slip structure 207, and the anti-slip structure 207 is an anti-slip groove or an anti-slip protrusion. One side of the elastic support 202 located in the accommodating cavity is provided with an axial positioning groove, and the axial positioning groove and the side plate of the rigid outer frame jointly enclose a positioning cavity.

According to the invention, the guide wire control assembly 3 comprises a rigid clamping seat 301, an elastic clamping body 302 and a locking member 303, wherein the elastic clamping body 302 and the locking member 303 are installed in the rigid clamping seat 301, the elastic clamping body 302 is provided with a slot 305 which is convenient to clamp the guide wire 7, and the locking member 303 can extrude the elastic clamping body 302, so that the guide wire 7 penetrating through the slot 305 is fixed in position, and locking is realized. Retaining member 303 is the screw rod of taking the spanner, has seted up the mounting groove 304 that is convenient for install the elasticity clamping body 302 in the rigidity holder 301, and the lateral part of rigidity holder 301 is seted up with screw rod 303 complex screw hole 306, and screw hole 306 and mounting groove 304 intercommunication, the side of elasticity clamping body 302 seted up with screw rod 303 complex location shallow slot.

The guide wire control assembly 3 may also be in the form of a rotating eccentric, snap-fit, snap-on, or other clamping mechanism commonly used by those skilled in the art.

Aiming at the condition that the catheter connecting assembly is a communicating plate, the invention provides a control method of a guide wire of a vascular interventional catheter, which specifically comprises the following steps:

1) the contrast catheter is conveyed to the root part of the aorta under the guidance of the contrast guide wire 7, the contrast catheter 6 is adjusted to reach the opening of a target blood vessel, an outer conical joint on the communicating plate 8 is connected with an inner conical joint at the tail end of the contrast catheter 6, and the outer conical joint of the communicating plate 8 is clamped and fixed by the catheter control assembly 2;

2) checking and confirming the position of the head end of the radiography catheter 6, and starting radiography examination when the position of the radiography catheter 6 is confirmed to be proper;

3) when the interventional therapy is determined not to be needed after the radiography is finished, the operation is finished after the radiography catheter 6 is withdrawn; when the interventional therapy is determined to be needed after the radiography is finished, the radiography catheter 6 is withdrawn, the catheter 6 is guided by the radiography guide wire 7 to a target blood vessel opening, then the catheter control assembly 2 is used for fixing the outer conical joint of the Y-shaped hemostasis valve 4 connected with the tail end of the catheter 6, and then the interventional therapy operation is continued.

The invention provides a control method of a guide wire of a vascular intervention catheter aiming at a Y-shaped hemostatic valve as a catheter connecting assembly, which comprises the following steps:

1) after the distal end of the catheter 6 reaches the target vascular site, the carrier is fixed or placed in position and the catheter control assembly 2 is then used to snap-fit the Y-hemostasis valve;

2) operating a guide wire 7 to reach a target position, conveying the PTCA dilatation balloon or stent conveying system along the tail end of the guide wire 7 in a relative movement mode according to needs, when the head end of the PTCA dilatation balloon or stent conveying system reaches the outer side of an opening of a valve of a Y-shaped hemostatic valve 4, locking the tail end of the guide wire 7 by using a guide wire control assembly 3, loosening the valve of the Y-shaped hemostatic valve 4, continuously conveying the PTCA dilatation balloon or stent conveying system along the guide wire 7 until a guide wire outlet port of the PTCA dilatation balloon or stent conveying system passes through the opening of the valve of the Y-shaped hemostatic valve 4, slightly locking the valve of the Y-shaped hemostatic valve 4 to reduce bleeding, fixing the guide wire 7 by using one hand, and continuously pushing the PTCA dilatation balloon or stent conveying system by using the other hand until the target position is reached;

3) after the operation of the PTCA dilatation balloon or the stent delivery system in a target blood vessel is finished, the guide wire 7 is fixed by one hand, the PTCA dilatation balloon or the stent delivery system is withdrawn by the other hand until the inner side of the opening of the valve of the Y-shaped hemostasis valve is opened, the valve of the Y-shaped hemostasis valve 4 is opened, the PTCA dilatation balloon or the stent delivery system is continuously withdrawn in a relative motion mode, the valve of the Y-shaped hemostasis valve 4 is closed after the head end of the PTCA dilatation balloon or the stent delivery system is completely appeared in the visual field of an operator, the guide wire 7 is fixed by one hand, the PTCA dilatation balloon or the stent delivery system is continuously withdrawn by the other hand until the PTCA dilatation balloon or the stent delivery system is completely and smoothly withdrawn, and the guide wire control component is used for fixing the tail end of the guide wire again after the PTCA dilatation balloon and the stent delivery system are withdrawn.

The device of the invention has reasonable design, the stability of the catheter 6 and the guide wire is the guarantee of smooth operation and the safety of patients in the process of vessel intervention diagnosis and treatment, and common operators, especially beginners, often need to spend much energy to overcome the difficulty brought by the instability of the catheter 6 and the guide wire to the operation. During interventional diagnosis and treatment, the guide wire catheter is in a free state for most of time, and the position of a patient is changed, the operator or an assistant accidentally operates the guide wire catheter, the guide wire catheter accidentally slides off, and the like, so that the catheter 6 and the guide wire can be moved unplanned, and the operation process and the operation safety are influenced.

For general interventional procedures, the catheter/guidewire control assembly is mainly convenient for the operator to operate, improves the safety of the patient, and for chronic total occlusion lesions, the catheter/guidewire control assembly can also reduce the possibility of failure of the procedure (the guidewire is more important to maintain the stability after passing through the occlusion segment, and the difficulty of re-entering can be greater than the previous time if the guidewire is inadvertently withdrawn). In addition, chronic total occlusion lesions can be completed smoothly only by contralateral radiography, at the moment, two sets of contrast agent injection systems, a plurality of guide wires, sometimes two pressure pumps and the like are generally arranged on an operating table, if two catheters for contralateral radiography and corresponding guide wires are fixed by two sets of catheters and guide wire control components respectively, the catheter 6, the guide wire 7, the ring handle injector and the like on a catheter bed can be used for distinguishing sources more easily, and the device is not easy to be worn by a user.

Because the guide wire control assembly 3 is marked and distinguished, an operator can easily know which blood vessel the tail end of each guide wire is positioned in operation, and the tail end of each guide wire is not easy to be confused.

The guide wire 7 and the catheter 6 need to be fixed at the same time to achieve the best effect, so the catheter control component 2 and the guide wire control component 3 usually need to be fixed on the same carrier, the shape of the carrier has no special requirement, but the total length is not shorter than 30cm, and the carrier can be rigid fixed or semi-fixed.

The following embodiments are relevant to the present invention:

example one

For simple vascular interventional procedures (typically only one guidewire is required as shown in fig. 1) the procedure is roughly as follows:

the patient lies on the catheter bed, the procedures of disinfecting the puncture part, laying a sterile large drape, performing arterial puncture by the Seldinger technology, sequentially arranging sheath tubes, conveying under the guidance of an angiographic guide wire, adjusting the catheter to the position of a target blood vessel and the like are performed according to the conventional method.

After the conduit 6 is in place, the double-sided adhesive on the bottom of the conduit holding platform (a form of carrier) is torn open to hold the platform in place (as an example of a semi-holding platform) and the conduit control assembly 2 is then used to hold the outer conical structure attached to the end of the conduit.

And operating the guide wire 7 to reach a target position, conveying the PTCA dilatation balloon or the stent conveying system along the tail end of the guide wire 7 in a relative movement mode according to requirements, fixing the tail end of the guide wire by using the guide wire control component 3 when the head end of the PTCA dilatation balloon or the stent conveying system reaches the opening of the Y-shaped hemostatic valve 4, loosening the Y-shaped hemostatic valve 4, and continuously conveying the PTCA dilatation balloon or the stent conveying system to the target position.

When the operation of the PTCA expanding saccule or the stent delivery system in a target blood vessel is finished, firstly, the tail end of the guide wire 7 is released, then the guide wire is fixed by one hand, and simultaneously the PTCA expanding saccule or the stent delivery system is withdrawn by the other hand, when the guide wire outlet port of the PTCA expanding saccule or the stent delivery system is close to the valve opening of the Y-shaped hemostatic valve, the valve of the Y-shaped hemostatic valve is opened, the PTCA expanding saccule or the stent delivery system is continuously withdrawn by adopting a relative movement mode, when the head ends of the PTCA expanding saccule and the stent delivery system are completely exposed, the valve of the Y-shaped hemostatic valve is closed, the guide wire is fixed by one hand, simultaneously the PTCA expanding saccule and the stent delivery system are continuously withdrawn by the other hand, and after the PTCA expanding saccule and the stent delivery system are withdrawn, the tail end of the guide wire 7 is fixed by the guide wire control component 3 again.

In this process, an assistant is no longer needed to assist the operator in controlling the guidewire.

Example two

For more complex vascular interventional procedures (more than two guide wires are required as shown in fig. 11-12) the procedure is roughly as follows:

the patient lies on the catheter bed, the procedures of disinfecting the puncture part, laying a sterile large drape, performing arterial puncture by the Seldinger technology, sequentially arranging sheath tubes, conveying under the guidance of an angiographic guide wire, adjusting the catheter 6 to the position of a target blood vessel and the like are performed according to the conventional method.

After the conduit 6 is in place, the double-sided adhesive on the bottom of the conduit holding platform (a form of carrier) is torn off to hold the platform in place (a semi-holding platform for example), and the conduit control assembly 2 is then used to hold the outer conical structure attached to the end of the conduit 6.

And operating the guide wires 7 to reach a target position, fixing the tail end of each guide wire 7 by using the corresponding guide wire control assembly 3 after each guide wire 7 reaches the target position, then starting the operation of the second guide wire, and fixing the tail end of the second guide wire by using the other guide wire control assembly after the second guide wire reaches the target position.

When the PTCA dilatation balloon or stent delivery system needs to be delivered along the guide wire 7, the locking structure of the corresponding guide wire control assembly 3 is firstly loosened, the guide wire 7 is released, the PTCA dilatation balloon or stent delivery system is delivered along the tail end of the guide wire 7 in a relative movement mode, when the head end of the PTCA dilatation balloon or stent delivery system reaches the opening of the Y-shaped hemostasis valve 4, the tail end of the guide wire is fixed by the corresponding guide wire control assembly 3 again, the Y-shaped hemostasis valve 4 is loosened, and the PTCA dilatation balloon or stent delivery system is delivered to a target position.

When the operation of the PTCA expanding saccule or the stent delivery system in a target blood vessel is finished, firstly, the tail end of the guide wire is released, then the guide wire is fixed by one hand, and simultaneously the PTCA expanding saccule or the stent delivery system is withdrawn by the other hand, when the guide wire outlet port of the PTCA expanding saccule or the stent delivery system is close to the valve opening of the Y-shaped hemostatic valve, the valve of the Y-shaped hemostatic valve is opened, the PTCA expanding saccule or the stent delivery system is continuously withdrawn by adopting a relative motion mode, when the head ends of the PTCA expanding saccule and the stent delivery system are completely exposed, the valve of the Y-shaped hemostatic valve is closed, the guide wire is fixed by one hand, simultaneously the PTCA expanding saccule and the stent delivery system is continuously withdrawn by the other hand, and when the PTCA expanding saccule and the stent delivery system are smoothly withdrawn, the tail end of the guide wire is fixed by the guide wire control component 3 again.

In the operation process, besides the assistant is not needed to assist the operator to control the guide wire 7, the operator can also easily identify the position of the guide wire, and the possibility of winding the guide wire 7 is greatly reduced.

EXAMPLE III

For more complex vascular interventional procedures (taking a chronic occlusive lesion intervention requiring bilateral visualization as an example) the procedure is roughly as follows:

the patient lies on the catheter bed, the procedures of sterilizing the puncture parts of the blood vessels at the two sides, laying a sterile large drape, arteriopuncture by the Seldinger technology, sequentially arranging sheath tubes, conveying the catheter 6 to the position of a target blood vessel under the guidance of an angiographic guide wire and the like are carried out according to the conventional method.

After the double-sided catheter 6 is in place, the double-sided adhesive that is torn to the bottom of the catheter securement platform secures the two platforms (one form of carrier) in place (a semi-secure platform for example), and then the catheter control assembly 2 is used to secure the outer conical connectors attached to the ends of the catheter 6, respectively.

The guide wire 7 is operated to pass through the occlusion lesion, when the position of the guide wire 7 needs to be confirmed, the tail end of the guide wire 7 is fixed by using the corresponding guide wire control component 3, and then the ipsilateral or contralateral contrast confirmation is carried out.

When the PTCA dilatation balloon or stent delivery system needs to be delivered along the guide wire after the guide wire 7 successfully passes through the occlusion section, the locking structure of the corresponding guide wire control component 3 is firstly loosened, the guide wire 7 is released, the PTCA dilatation balloon or stent delivery system and the like are delivered along the tail end of the guide wire 7 in a relative motion mode, when the head end of the PTCA dilatation balloon or stent delivery system reaches the opening of the Y-shaped hemostasis valve 4, the guide wire control component 3 is used for fixing the tail end of the guide wire again, the Y-shaped hemostasis valve 4 is loosened, and the PTCA dilatation balloon or stent delivery system is continuously delivered until the target position.

When the operation of the PTCA expanding saccule or the stent delivery system in a target blood vessel is finished, the tail end of the guide wire 7 is released firstly, then the guide wire is fixed by one hand, the PTCA expanding saccule or the stent delivery system is withdrawn by the other hand, when the guide wire outlet port of the PTCA expanding saccule or the stent delivery system is close to the valve opening of the Y-shaped hemostatic valve, the valve of the Y-shaped hemostatic valve is opened, the PTCA expanding saccule or the stent delivery system is continuously withdrawn by adopting a relative movement mode, when the head ends of the PTCA expanding saccule and the stent delivery system are completely exposed, the valve of the Y-shaped hemostatic valve is closed, the guide wire is fixed by one hand, and the tail end of the guide wire 7 is fixed by the guide wire control component 3 again after the PTCA expanding saccule and the stent delivery system are continuously withdrawn by the other hand.

In the operation process, besides the assistant is not needed to assist the operator to control the guide wire, the operator can very easily identify the position of the guide wire 7, and the possibility of winding the guide wire 7 is greatly reduced. Because the stability of the guide wire is greatly increased, an operator can operate the guide wire with more concentration, and the possibility of accidental falling of the guide wire is obviously reduced.

Example four

In remote areas which are lack of medical services and contain few medicines and are far away from a central city, when a patient has acute ST-elevation myocardial infarction and needs emergency operation, only one interventional doctor and operation nurse (without an assistant or an assistant cannot be in place in time) may occur, and the life of the patient with the acute ST-elevation myocardial infarction faces a threat all the time.

Under the special critical condition, an operator can easily complete the general difficult emergency blood vessel intervention operation with the help of the catheter guide wire operating device, and the life of the patient is saved. The operation flow is as follows:

the patient lies on the catheter bed, the puncture part is disinfected, a sterile large single is laid, the artery puncture is carried out by the Seldinger technology, sheath tubes are sequentially arranged, the radiography catheter 6 is conveyed to the root part of the aorta under the guidance of the radiography guide wire 7, a double-faced adhesive tape which is torn to the bottom of a catheter fixing platform is used for fixing the platform (a form of a carrier) at a proper position (taking a semi-fixing platform as an example), the radiography catheter 6 is adjusted to reach a target blood vessel opening, an outer cone connector on a communicating plate 8 is connected with an inner cone connector at the tail end of the radiography catheter 6, the catheter control assembly 2 is used for clamping and fixing the platform, then the position of the head end of the radiography catheter 6 is checked and confirmed, and the radiography examination is started when the position of the radiography catheter 6 is confirmed to be proper.

And when the emergency intervention treatment is determined to be needed after the radiography is finished, withdrawing the radiography catheter, conveying the catheter 6 to the target blood vessel opening under the guidance of the radiography guide wire, fixing an external cone connector of a Y-shaped hemostasis valve 4 connected with the tail end of the catheter 6 by using the catheter control assembly 2, and then continuously and independently finishing the operation of the catheter bed and the injection of the contrast agent.

When the position of the guide wire needs to be confirmed, the tail end of the guide wire 7 is fixed by using the guide wire control assembly 3, after the guide wire 7 reaches the target position, the PTCA expanding saccule and the stent delivery system are delivered in a relative motion mode along the tail end of the guide wire 7 as required, when the head ends of the PTCA expanding saccule and the stent delivery system reach the opening of the Y-shaped hemostatic valve 4, the tail end of the guide wire is fixed by using the guide wire control assembly 3, the Y-shaped hemostatic valve 4 is loosened, and the PTCA expanding saccule and the stent delivery system are delivered to the target position.

When the operation of the PTCA expanding saccule and the stent delivery system in a target blood vessel is finished, the tail end of the guide wire 7 is released firstly, then the guide wire is fixed by one hand, the guide wire outlet port of the PTCA expanding saccule or the stent delivery system is withdrawn by the other hand to be close to the valve opening of the Y-shaped hemostatic valve, the valve of the Y-shaped hemostatic valve is opened, the PTCA expanding saccule or the stent delivery system is continuously withdrawn by adopting a relative motion mode, when the head ends of the PTCA expanding saccule and the stent delivery system are completely exposed, the valve of the Y-shaped hemostatic valve is closed, the guide wire is fixed by one hand, the PTCA expanding saccule and the stent delivery system are continuously withdrawn by the other hand, and when the PTCA expanding saccule and the stent delivery system are withdrawn smoothly, the tail end of the guide wire 7 is fixed by the guide wire control component 3 again.

In the whole emergency intervention operation process, although no assistant participates, the catheter and guide wire operation device can ensure that an operator can smoothly complete the operation.

EXAMPLE five

In this embodiment, U-shaped elastic pipe clamp of pipe control assembly formula as an organic whole utilizes U-shaped elastic pipe clamp card to go into joint pipe coupling assembling, and the restoring effect that self deformation produced after the card is gone into can restrict its axial displacement or the circumferential direction displacement that appears of pipe coupling assembling.

EXAMPLE six

In this embodiment, the position of seal wire can be fixed with the quick centre gripping of seal wire by the quick clamp of seal wire control assembly formula as an organic whole, and then makes the relative position between pipe and the seal wire of wearing to establish in it keep fixed.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A guide wire control device of a vessel interventional catheter is characterized by comprising:

a carrier;

2. The vascular interventional catheter guidewire control device of claim 1, wherein: the catheter connecting assembly is a Y-shaped hemostatic valve or a communicating plate, and an outer conical joint for connecting with an inner conical joint at the tail end of the catheter is arranged on the Y-shaped hemostatic valve and the communicating plate; after the conduit control assembly is clamped with the conduit connecting assembly, the axial displacement or the circumferential rotation displacement of the upper and lower conical joints can be limited, and the axial displacement or the circumferential rotation displacement of the conduit fixedly connected with the outer conical joint through the inner conical joint at the tail end is further limited.

3. The vascular interventional catheter guidewire control device of claim 1, wherein: the conduit control assembly is a combined clamping piece or an integrated U-shaped elastic pipe clamp.

4. The vascular interventional catheter guidewire control device of claim 3, wherein: the combined clamping piece consists of a rigid outer frame and an elastic supporting body loaded in the rigid outer frame, and after the accommodating cavity of the elastic supporting body is clamped into the outer conical joint, the outer conical joint is clamped by utilizing the self deformation restoring force and is limited to perform free circumferential rotary displacement; rigid frame, elastic support body are formed with the location chamber jointly, behind the outer cone joint is gone into to the location chamber card, can restrict its axial displacement that appears, the rigid frame is equipped with the installation cavity that is used for loading elastic support body, the both sides board that the rigid frame is located the installation cavity is equipped with the open slot respectively.

5. The vascular interventional catheter guidewire control device of claim 4, wherein: the inner wall that the elastic support body is located and holds the chamber is equipped with anti-skidding structure, and anti-skidding structure is anti-skidding groove or non-skid stud, the axial positioning groove has been seted up to one side that the elastic support body is located and holds the chamber, the axial positioning groove encloses jointly with the curb plate of rigidity frame and becomes to have the location chamber.

6. The vascular interventional catheter guidewire control device of claim 1, wherein: the guide wire control component is a combined locking piece or an integrated quick clamp.

7. The vascular interventional catheter guidewire control device of claim 6, wherein: the combination formula locking piece includes rigidity holder, the elasticity centre gripping body and retaining member, install the elasticity centre gripping body and retaining member in the rigidity holder, the elasticity centre gripping body self has been seted up or is formed with the slot of the card income seal wire of being convenient for between rigidity holder, the elasticity centre gripping body, the retaining member can extrude the elasticity centre gripping body, and then makes the seal wire position of wearing to establish in the slot fixed, realizes locking.

8. The vascular interventional catheter guidewire control device of claim 7, wherein: the retaining member is the screw rod of taking the spanner, set up the mounting groove of being convenient for install the elasticity supporting body in the rigidity holder, the lateral part of rigidity holder seted up with screw rod complex screw hole, and screw hole and mounting groove intercommunication, the side of elasticity supporting body seted up with screw rod complex location shallow slot.

9. A control method of a guide wire of a vascular intervention catheter is characterized by comprising the following steps:

10. A control method of a guide wire of a vascular intervention catheter is characterized by comprising the following steps: