Guiding device for inserting guide wire in cardiovascular interventional operation

Abstract

The invention discloses a guiding device for cardiovascular interventional operation guide wire insertion, and belongs to the technical field of guide wire guiding. The guide wire guiding and twisting assembly comprises a guiding seat, the guide wire guiding and twisting assembly comprises a sliding block, a positioning pin is elastically inserted into the sliding block in a sliding mode, the sliding block is rotationally connected with a second shifting wheel, and the second shifting wheel is elastically connected with a first shifting wheel; the guide wire is clamped by the first dial wheel and the second dial wheel, the first dial wheel and the second dial wheel are both of a fan-shaped structure and form a round wheel, and the guide wire is inserted into the catheter sheath along the guide seat through the round wheel which is shifted in a reciprocating mode. The first poking wheel and the second poking wheel are poked and arranged at the sliding block, and the round wheel clamps the guide wire; a positioning pin is extruded by a second poking wheel and inserted into a guide seat for positioning, so that the situation that the hands, the guide wire and the catheter sheath of a doctor are polluted due to the fact that blood in the catheter sheath flows out is avoided, and the guide wire stored in a guide wire storage tube is poked in a reciprocating mode through a guide wire guide twisting assembly and inserted into the catheter sheath; and the problem that blood vessels are scratched due to the fact that the guide wire is pulled out of the catheter sheath by mistake is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of guidewire guidance, and more specifically to a guiding device for guidewire insertion in cardiovascular intervention surgery. Background Art

[0002] A guidewire is a thin, long, filamentous tool that is commonly used in interventional treatments in the medical field. In cardiovascular interventional surgery, the guidewire is a key guiding tool. It can smoothly pass through the complex and changeable vascular structure, and the catheter sheath guides the guidewire to the target vascular location.

[0003] At present, the guidewire insertion guidance usually adopts the catheter sheath guidance method. This guidance method can guide the guidewire, but it also has the following defects: after the guidewire is inserted into the catheter sheath, the physician passes the guidewire into the catheter sheath through the opening side of the catheter sheath, and the catheter sheath is inserted into the blood vessel for guidance. Therefore, during the use of the catheter sheath, blood will flow out through the opening side, causing a large amount of blood to adhere to the physician's fingers and the operating table. When a large amount of blood adheres to the doctor's hands and the catheter sheath, the physician will not be able to accurately pinch the guidewire when pushing the guidewire into the catheter sheath because the guidewire is relatively thin, and there will be problems of invalid pushing due to slippage during the pushing process.

[0004] When the guidewire is relatively long and is placed randomly, firstly, the risk of the guidewire being contaminated is easily increased, and secondly, the guidewire is easily hung on the medical staff during the operation. Moreover, after the guidewire is hung on the medical staff, the normal progress of the operation will be affected during the removal of the guidewire, thereby increasing the risk of disease for the patient. If the medical staff does not notice that there is a guidewire hanging on their body, the guidewire may be pulled out of the catheter sheath and the blood vessel while walking, which may cause the spring on the outside of the guidewire to move relative to the inner wall of the blood vessel, causing friction and easily causing vascular spasm. At the same time, the head of the guidewire may easily scratch the blood vessel at the corner of the blood vessel, so once punctured, more serious consequences will occur.

[0005] In view of this, we propose a guiding device for guidewire insertion in cardiovascular interventional surgery. Summary of the invention

[0006] 1. Technical issues to be solved

[0007] The purpose of the present invention is to provide a guiding device for guidewire insertion in cardiovascular interventional surgery, which solves the technical problems in the above-mentioned background technology and achieves the technical effect of avoiding the contamination of the doctor's hands, guidewire and catheter sheath caused by blood flowing out of the catheter sheath. The guidewire is inserted into the catheter sheath by reciprocating the guidewire stored in the guidewire storage tube through the guidewire guiding and rubbing component, thereby preventing the guidewire from being accidentally pulled out of the catheter sheath and causing the blood vessel to be cut.

[0008] 2. Technical solution

[0009] The technical solution of the present invention provides a guide device for inserting a guide wire in cardiovascular intervention surgery, comprising a guide seat, one end of which is connected to a catheter sheath, and the other end of which is connected to a guide wire storage tube, and a guide wire guiding and twisting assembly is slidably provided on the guide seat;

[0010] The guide wire guiding and twisting assembly comprises a slider, a positioning pin is elastically inserted on the slider, a second dial wheel is rotatably connected to the slider, and the second dial wheel is elastically connected to the first dial wheel;

[0011] The guide wire is clamped by the first dial wheel and the second dial wheel, both of which are fan-shaped structures and form a round wheel. The guide wire is inserted into the catheter sheath along the guide seat through the reciprocating round wheel;

[0012] The first dial wheel and the second dial wheel are moved and placed on the slide block, and the round wheel clamps the guide wire; the positioning pin is squeezed and inserted into the guide seat for positioning through the second dial wheel.

[0013] As an optional solution of the technical solution of the present invention, the slider is provided with a rotation groove, the first and second dial wheels are coaxially rotatably connected with the rotation groove, the slider is provided with a step hole along the radial direction of the rotation groove, the positioning pin is slidably inserted in the step hole, and a third spring is sleeved on the positioning pin;

[0014] The guide seat comprises a guide rail, the slider is slidably arranged on the guide rail, and a plurality of positioning holes adapted to and corresponding to the positioning pins are opened on the guide rail;

[0015] An annular groove is formed on the outer wall of the second thumbwheel, and a slope block is fixed at one end of the annular groove.

[0016] As an optional scheme of the technical solution of the present invention, the inner wall of the rotating groove is symmetrically provided with arc grooves, the arc grooves are coaxial with the rotating groove, the first arc rails are coaxially fixed on both axial sides of the first thumbwheel, and the second arc rails are coaxially fixed on both axial sides of the second thumbwheel, the first arc rail and the second arc rail form a circular rail, and the circular rail rotates along the arc groove.

[0017] As an optional solution of the technical solution of the present invention, a guide rod is symmetrically fixed on the side of the first dial away from the arc surface, a guide hole adapted to the guide rod is provided on the side of the second dial close to the first dial, the second dial is also provided with a spring groove arranged in the same direction as the guide rod, and a second spring is fixed between the spring groove and the first dial.

[0018] As an optional scheme of the technical solution of the present invention, a connector is fixed at one end of the guide rail, and a blood guide shell is fixed at the other end. The connector is provided with a through hole connected to the guide wire storage tube. The end of the blood guide shell close to the connector is through-connected with the guide tube. The through hole, the guide tube, the guide wire storage tube, and the circular wheel are coaxially arranged, and one side of the blood guide shell is through-connected with the blood derivation tube.

[0019] As an optional solution of the technical solution of the present invention, the guidewire storage tube is spirally coiled on a coiling seat, and the coiling seat includes a plurality of annularly distributed support rods, and a plurality of bayonet holes are opened on the support rods, and the bayonet holes are adapted to the guidewire storage tube.

[0020] As an optional solution of the technical solution of the present invention, a first spring is fixed between the blood guiding shell and the slider.

[0021] As an optional solution of the technical solution of the present invention, the blood guiding shell and the catheter sheath are connected by a connecting tube with a frustum-shaped structure.

[0022] As an optional solution of the technical solution of the present invention, rubber pads are fixedly installed on the opposite sides of the first thumbwheel and the second thumbwheel, and the guide wire is clamped between the two rubber pads.

[0023] 3. Beneficial effects

[0024] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0025] 1. The present invention avoids the guide wire from being hung on the clothes of medical staff through the guide wire storage tube, avoids the contamination caused by the guide wire being exposed to the air for a long time, and the circular wheel formed by the first dial and the second dial clamps the guide wire, and the circular wheel is reciprocated and slides along the guide seat toward the catheter sheath through the slider, so that the guide wire can be inserted into the blood vessel through the catheter sheath more smoothly and can break through the thrombus position more smoothly. After the first dial and the second dial are moved and partially placed on the slider, the positioning pin is squeezed and inserted into the guide seat by the second dial, so that the guide wire can be fixed, avoiding the problem of cutting the blood vessel caused by the guide wire being pulled back.

[0026] 2. The present invention guides the blood into the blood vessel through the catheter sheath, and the catheter sheath is connected to the blood guide shell, but the guide tube is not directly connected to the catheter sheath. Therefore, when blood overflows from the catheter sheath, the blood flows out through the blood outlet tube connected to one side of the blood guide shell under the action of gravity; and then, through the cooperation between the blood guide shell and the blood outlet tube, blood can be prevented from flowing back to the doctor's hands, thereby ensuring the cleanliness of the doctor's hands and the entire guide seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1A schematic diagram of the overall structure of a guide wire insertion guide device for cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention;

[0028] Figure 2 A guide wire insertion guide device for cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0029] Figure 3 A schematic diagram of the structure of a guide seat of a guide device for inserting a guide wire for cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention;

[0030] Figure 4 This is a schematic structural diagram of a first dial wheel and a second dial wheel of a guide wire insertion guide device for cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention forming a circular wheel;

[0031] Figure 5 It is a schematic cross-sectional structure diagram of a first dial wheel and a second dial wheel of a guide wire insertion guide device for cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention forming a circular wheel;

[0032] Figure 6 A schematic structural diagram of a first dial limiting and positioning pin extending state of a guide wire insertion guide device for cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention;

[0033] Figure 7 It is a schematic cross-sectional structure diagram of a guide device for inserting a guide wire for cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention, in which the first dial wheel is limited and the positioning pin is extended;

[0034] Figure 8 A schematic structural diagram of a guide wire installation state of a guide wire guiding and twisting assembly of a guide wire insertion guide device for cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention;

[0035] Fig. 9 A schematic diagram of the exploded structure of a guide wire guiding and rubbing assembly of a guide wire insertion guide device for cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention;

[0036] Fig.10 A schematic diagram of the cross-sectional structure of a slider of a guide device for guide wire insertion in cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention;

[0037] Fig.11 This is a schematic diagram of the structure of a first dial wheel of a guide wire insertion guide device for cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention;

[0038] Fig.12A schematic diagram of the structure of a second dial wheel of a guide wire insertion guide device for cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention;

[0039] Fig.13 A schematic diagram of the structure of a coiled seat of a guide wire insertion guide device for cardiovascular intervention surgery disclosed in a preferred embodiment of the present invention;

[0040] Explanation of the reference numerals in the figure: 10, guide seat; 11, connector; 111, perforation; 12, guide rail; 121, positioning hole; 13, blood guide shell; 131, guide tube; 14, blood outlet tube;

[0041] 20. catheter sheath; 21. connecting tube;

[0042] 30. Guide wire guiding and rubbing assembly; 31. Sliding block; 311. Rotating groove; 312. Arc groove; 313. Step hole; 32. First spring; 33. First dial wheel; 331. First arc rail; 332. Guide rod; 34. Second dial wheel; 341. Second arc rail; 342. Guide hole; 343. Spring groove; 344. Second spring; 345. Annular groove; 35. Positioning pin; 351. Third spring; 36. Slope block; 37. Rubber pad;

[0043] 40. Guidewire storage tube;

[0044] 50. Coiled seat; 51. Support rod; 52. Bayonet. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0046] like Figure 1 - Fig.13 As shown, a guide device for inserting a guide wire for cardiovascular intervention surgery includes a guide seat 10, one end of the guide seat 10 is connected to a guide sheath 20, and the guide seat 10 is used to guide the guide wire to the guide sheath 20, and the guide sheath 20 punctures the blood vessel through the puncture needle. The guide sheath 20 is a thin-walled tubular sheath, which can reduce the damage to the blood vessel and provide a stable entry and exit channel for the subsequent guide wire. The other end is connected to a guide wire storage tube 40, and the guide wire is inserted into the guide wire storage tube 40 for storage, which can avoid the contamination caused by the guide wire being exposed to the outside and prevent the exposed guide wire from being hung on clothes;

[0047] At the same time, the guide wire storage tube 40 is a spiral coil structure, so when the guide wire is inserted into the guide wire storage tube 40, the problem of large bending of the guide wire can be avoided, and the problem of large space occupied by the scattered placement of the guide wire can also be avoided. A guide wire guiding and twisting assembly 30 is slidably provided on the guide seat 10;

[0048] like Figure 8As shown, the guide wire guiding and twisting assembly 30 includes a slider 31, which is slidably arranged on the guide seat 10 and slides along the inlet of the catheter sheath 20 and the outlet of the guide wire storage tube 40. A positioning pin 35 is elastically inserted on the slider 31. When the first dial wheel 33 is always reciprocated in the area above the slider 31, the positioning pin 35 is always placed in the slider 31 (as shown in FIG. Figure 5 As shown in FIG. 1 , the slider 31 can slide along the guide seat 10 normally. When the first thumbwheel 33 and the second thumbwheel 34 are partially placed in the slider 31, the second thumbwheel 34 presses down the positioning pin 35 and inserts it into the guide seat 10, and the guide wire can be clamped on the first thumbwheel 33 and the second thumbwheel 34 and fixed (as shown in FIG. 1 ). Figure 7 shown);

[0049] like Figure 8 As shown, the slider 31 is rotatably connected to the second dial wheel 34, and the second dial wheel 34 is elastically connected to the first dial wheel 33. When the first dial wheel 33 is not pressed, a guide wire insertion channel is formed between the first dial wheel 33 and the second dial wheel 34. The guide wire is inserted into the channel, so that the guide wire can be placed between the first dial wheel 33 and the second dial wheel 34.

[0050] The guide wire is clamped by the first paddle wheel 33 and the second paddle wheel 34. Both the first paddle wheel 33 and the second paddle wheel 34 are fan-shaped structures, and when the first paddle wheel 33 and the second paddle wheel 34 clamp the guide wire, they form a round wheel (such as Figure 4 As shown in the figure, at this time, the doctor holds the guide seat 10 with one hand, and then uses the thumb to reciprocately turn the round wheel back and forth, and the round wheel drives the guide wire to reciprocate clockwise or counterclockwise, and in the process again, the thumb pushes the round wheel and the slider 31 holding the guide wire toward the catheter sheath 20, and the guide wire is inserted into the catheter sheath 20 along the guide seat 10 through the reciprocating round wheel. When the guide wire is reciprocated, a torsion is generated, and this torque helps to overcome the resistance of the thrombus to the guide wire, and at the same time, the torsion can also avoid the problem of guide wire bending during the pushing process;

[0051] like Figure 6 , Figure 7 As shown, after the round wheel clamps the guide wire, the first and second dial wheels 33, 34 are moved and partially placed on the slider 31 by the thumb, and the first and second dial wheels 33, 34 are limited by the slider 31 so that they always maintain the round wheel state, and when the fingers are released, the round wheels are still in the state of clamping the guide wire; at the same time, the positioning pin 35 is squeezed and inserted into the guide seat 10 through the second dial wheel 34 for positioning, and then when the doctor does not push the guide wire, the guide wire can be fixed on the round wheel, and the round wheel is fixed on the guide seat 10, and the doctor can prevent the guide wire from slipping out of the catheter sheath 20 by holding the guide seat 10.

[0052] Finally, the guidewire storage tube 40 is used to prevent the guidewire from getting caught on the clothes of medical staff, and to prevent the guidewire from being contaminated by being exposed to the air for a long time. The circular wheel formed by clamping the guidewire by the first dial wheel 33 and the second dial wheel 34 is reciprocated and slides along the guide seat 10 toward the catheter sheath 20 through the slider 31, so that the guidewire can be inserted into the blood vessel more smoothly through the catheter sheath 20 and can break through the thrombus position more smoothly. After the first dial wheel 33 and the second dial wheel 34 are moved and partially placed on the slider 31, the positioning pin 35 is squeezed and inserted into the guide seat 10 by the second dial wheel 34, so that the guidewire can be fixed, avoiding the problem of the guidewire being pulled back and causing the blood vessel to be cut.

[0053] like Figure 7 , Fig. 9 , Fig.10 As shown, the slider 31 is provided with a rotation groove 311, the circular wheel formed by the first dial wheel 33 and the second dial wheel 34 is coaxial with the rotation groove 311 and rotationally matched, the first dial wheel 33 and the second dial wheel 34 are coaxially rotatably connected with the rotation groove 311, the slider 31 is provided with a step hole 313 along the radial direction of the rotation groove 311, the positioning pin 35 is slidably inserted in the step hole 313, the positioning pin 35 is sleeved with a third spring 351, the third spring 351 is fixed to the large-diameter end of the step hole 313, and the upper end is fixed to the positioning pin 35, and the sliding direction of the positioning pin 35 is positioned through the cooperation between the step hole 313 and the positioning pin 35;

[0054] like Figure 2 The guide seat 10 includes a guide rail 12, and the slider 31 is slidably arranged on the guide rail 12. A plurality of positioning holes 121 adapted to and corresponding to the positioning pins 35 are opened on the guide rail 12. The plurality of positioning holes 121 are arranged along the sliding direction of the slider 31, and the opening edges of the positioning holes 121 are rounded to facilitate the positioning pins 35 to be inserted into the corresponding positioning holes 121. When the positioning pins 35 are pressed and inserted into the positioning holes 121 by the second dial wheel 34, the third spring 351 is elastically compressed to generate a rebound force, and the round wheel and the slider 31 are fixed to the guide rail 12 through the positioning pins 35;

[0055] like Figure 5 , Figure 7 , Fig.12As shown, an annular groove 345 is formed on the outer wall of the second dial wheel 34. The upper end of the positioning pin 35 always abuts against the inner wall of the annular groove 345 after the rebound of the third spring 351. A slope block 36 is fixed at one end of the annular groove 345. One side of the slope block 36 is a slope structure, and the slope gradually moves away from the axis of the round wheel in the clockwise direction. Therefore, when the first dial wheel 33 and the second dial wheel 34 form a round wheel, when the finger is less than 90 degrees in the process of reciprocating the round wheel, the positioning pin 35 is always in the ring. shaped groove 345, the locating pin 35 is received in the step hole 313, and when the connecting seam between the first dial wheel 33 and the second dial wheel 34 is rotated counterclockwise by 90 degrees, the first dial wheel 33 and the second dial wheel 34 are partially placed in the rotating groove 311, and at the same time, the slope block 36 presses the locating pin 35 downward through the slope surface, so that the locating pin 35 is inserted into the corresponding locating hole 121 to complete the positioning. When taking it out, rotate the round wheel clockwise to make the locating pin 35 slide into the arc groove 312 along the slope surface of the slope block 36.

[0056] like Figure 6 , Fig.10 , Fig.11 , Fig.12 As shown, the inner wall of the rotating groove 311 is symmetrically provided with arc grooves 312, and the arc groove 312 is coaxial with the rotating groove 311. The first arc rails 331 are coaxially fixed on both axial sides of the first thumbwheel 33, and the second arc rails 341 are coaxially fixed on both axial sides of the second thumbwheel 34. When the first thumbwheel 33 and the second thumbwheel 34 are pressed against each other to form a circular wheel, the first arc rail 331 and the second arc rail 341 form a circular rail, and the circular rail rotates along the arc groove 312, thereby realizing the coaxiality of the circular wheel and the rotating groove 311, and the guide wire is clamped by the first thumbwheel 33 and the second thumbwheel 34, and is coaxial with the rotating groove 311 and the circular wheel, and then the coaxial twisting of the guide wire and the circular wheel is ensured by the circular rail, and the second thumbwheel 34 is prevented from falling off the slider 31.

[0057] like Fig. 9 , Fig.11As shown, a guide rod 332 is symmetrically fixed on one side of the first dial wheel 33 away from the arc surface, and a guide hole 342 adapted to the guide rod 332 is provided on the side of the second dial wheel 34 close to the first dial wheel 33. The guide rod 332 is slidably inserted into the guide hole 342. The first dial wheel 33 is guided by the cooperation between the guide rod 332 and the guide hole 342 to avoid the problem of deflection when the first dial wheel 33 and the second dial wheel 34 form a round wheel. The second dial wheel 34 is also provided with a spring groove 343 arranged in the same direction as the guide rod 332. A second spring 344 is fixed between the thumb wheel 343 and the first thumb wheel 33. When the first thumb wheel 33 is pressed toward the second thumb wheel 34, the second spring 344 elastically contracts in the spring slot 343 and generates an elastic rebound force. When the first thumb wheel 33 is not pressed by the thumb, the elastic rebound of the second spring 344 facilitates the pop-up of the first thumb wheel 33, thereby separating the first thumb wheel 33 from the second thumb wheel 34, and at the same time, the second spring 344 is accommodated by the spring slot 343.

[0058] like Figure 1 , Figure 2 As shown, a connector 11 is fixed at one end of the guide rail 12, and a blood guide shell 13 is fixed at the other end. The connector 11 is provided with a through hole 111 connected to the guide wire storage tube 40. The through hole 111 is coaxially arranged with the second thumbwheel 34. A guide tube 131 is connected through one end of the blood guide shell 13 close to the connector 11. The through hole 111, the guide tube 131, the guide wire storage tube 40, and the round wheel are coaxially arranged. After the guide wire passes through the through hole 111, it is clamped on the round wheel formed between the first thumbwheel 33 and the second thumbwheel 34. The guide wire passes through the blood guide shell 13 through the guide tube 131 and is guided into the blood vessel by the catheter sheath 20. The catheter sheath 20 is connected to the blood guide shell 13, and the guide tube 131 is not directly connected to the catheter sheath 20. Therefore, when blood overflows from the catheter sheath 20, the blood flows out through the blood outlet tube 14 connected through one side of the blood guide shell 13 under the action of gravity.

[0059] Furthermore, through the cooperation between the blood guide shell 13 and the blood outlet tube 14 , blood can be prevented from flowing back to the doctor's hands, thereby ensuring the cleanliness of the doctor's hands and the entire guide seat 10 .

[0060] like Figure 1 , Fig.13 As shown, the guide wire storage tube 40 is spirally coiled on the winding seat 50, and the winding seat 50 includes a plurality of annularly distributed support rods 51, and a plurality of bayonet holes 52 are opened on the support rods 51. The bayonet holes 52 are adapted to the guide wire storage tube 40, and the plurality of bayonet holes 52 are spirally distributed. Therefore, when the guide wire storage tube 40 is sequentially inserted into the bayonet holes 52, the guide wire storage tube 40 can be spirally fixed on the winding seat 50.

[0061] like Figure 1 , Figure 2As shown, a first spring 32 is fixed between the blood guide shell 13 and the slider 31. When the guide wire is pushed, the first dial 33 is placed outside the slider 31. At this time, the thumb is detached from the first dial 33, and the first spring 32 rebounds and the first dial 33 no longer clamps the guide wire. At this time, under the elastic rebound action of the first spring 32, the slider 31 can slide toward the direction of the connector 11. Then the thumb presses the first dial 33 to clamp the guide wire through the round wheel, pushing the slider 31 to slide toward the direction of the blood guide shell 13, and the first spring 32 is compressed.

[0062] like Figure 2 As shown, the blood guide shell 13 and the catheter sheath 20 are connected via a connecting tube 21 with a frustum-shaped structure, so that after the guide wire penetrates into the guide tube 131 , the guide wire is guided to the catheter sheath 20 via the frustum-shaped connecting tube 21 .

[0063] like Figure 8 , Fig.11 , Fig.12 As shown, rubber pads 37 are fixedly installed on opposite sides of the first paddle wheel 33 and the second paddle wheel 34. After the guide wire is clamped between the two rubber pads 37, the friction coefficient with the guide wire can be increased, and damage to the guide wire can be avoided when the first paddle wheel 33 and the second paddle wheel 34 are clamped.

[0064] Working principle: The guide wire is inserted into the guide wire storage tube 40 through the end away from the perforation 111, and then the guide wire storage tube 40 is sequentially inserted into the bayonet 52 on the support rod 51, so that the guide wire inside the guide wire storage tube 40 is stored in a spiral shape, and the head of the guide wire passes through the perforation 111. When not in use, the first spring 32 elastically supports the slider 31 to be close to the connector 11, and the second spring 344 elastically rebounds to separate the first dial wheel 33 and the second dial wheel 34, so that the guide wire passes through the two rubber pads 37 and passes into the guide tube 131, and then passes into the catheter sheath 20 under the guidance of the connecting tube 21;

[0065] When the guide wire needs to be inserted, the hand holds the guide seat 10, and the thumb presses the first dial wheel 33 toward the second dial wheel 34, the second spring 344 elastically shrinks into the spring groove 343, the two rubber pads 37 clamp the guide wire, and the first dial wheel 33 and the second dial wheel 34 form a circular wheel state, the first arc track 331 and the second arc track 341 form a circular track, at this time, the doctor uses the thumb to reciprocate and push the circular wheel, so that the slider 31 slides toward the direction of the blood guide shell 13, and the first spring 32 generates an elastic rebound force, which can drive the guide wire to be inserted into the catheter sheath 20;

[0066] Then, the thumb releases the first dial wheel 33, and the second spring 344 rebounds to support the first dial wheel 33 upward, so that the first dial wheel 33 no longer presses the guide wire, and the first spring 32 causes the slider 31 to slide along the guide rail 12 toward the connector 11 under the elastic rebound force, and then the above-mentioned guide wire insertion action is repeated to continuously insert the guide wire into the blood vessel through the guidance of the catheter sheath 20;

[0067] When the guide wire needs to be removed, it is only necessary to push the slider 31 toward the blood guide housing 13, and then press the first dial wheel 33 with the thumb, the guide wire is clamped on the round wheel, and the thumb moves the round wheel and the slider 31 toward the direction of the connector 11, and finally release the first dial wheel 33;

[0068] When it is necessary to position the round wheel 33 after clamping the guide wire on the guide seat 10, the thumb presses the first dial 33 and keeps the round wheel in a counterclockwise direction, while pushing the slider 31 to slide along the guide rail 12, and when the positioning pin 35 slides to above the corresponding positioning hole 121, the positioning pin 35 is pressed downward under the squeezing action of the slope surface of the slope block 36 and inserted into the corresponding positioning hole 121, and at the same time, the first dial 33 and the second dial 34 are partially stuck in the rotating groove 311, and the inner wall of the rotating groove 311 limits the first dial 33 and the second dial 34 to keep the round wheel state, and at this time, the round wheel holding the guide wire and the slider 31 are fixed on the guide rail 12 to prevent the guide wire from being pulled out by mistake;

[0069] Finally, when the guide wire needs to be pushed again, the thumb is used to turn the round wheel clockwise, and the positioning pin 35 slides into the arc groove 312 along the slope of the slope block 36. The third spring 351 elastically rebounds so that the positioning pin 35 is accommodated in the step hole 313, and the first dial wheel 33 is placed outside the slider 31.

[0070] The present invention is described above. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above-disclosed methods and technical contents without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A guide wire insertion guide device for cardiovascular intervention surgery, characterized in that: It comprises a guide seat (10), one end of which is connected to a guide sheath (20), and the other end of which is connected to a guide wire storage tube (40), and a guide wire guiding and twisting assembly (30) is slidably arranged on the guide seat (10); The guide wire guiding and twisting assembly (30) comprises a slider (31), a positioning pin (35) is elastically and slidably inserted on the slider (31), a second thumbwheel (34) is rotatably connected to the slider (31), and the second thumbwheel (34) is elastically connected to the first thumbwheel (33); The guide wire is clamped by a first dial wheel (33) and a second dial wheel (34), both of which are fan-shaped structures and form a circular wheel, and the guide wire is inserted into the catheter sheath (20) along the guide seat (10) through the reciprocating circular wheel; The first dial wheel (33) and the second dial wheel (34) are moved and placed on the slider (31), and the round wheels clamp the guide wire; the positioning pin (35) is pressed and inserted into the guide seat (10) through the second dial wheel (34) for positioning.

2. A guide wire insertion guide device for cardiovascular intervention surgery according to claim 1, characterized in that: The slider (31) is provided with a rotation groove (311), the first dial wheel (33) and the second dial wheel (34) are coaxially rotatably connected with the rotation groove (311), the slider (31) is provided with a step hole (313) along the radial direction of the rotation groove (311), the positioning pin (35) is slidably inserted in the step hole (313), and the positioning pin (35) is sleeved with a third spring (351); The guide seat (10) comprises a guide rail (12), a slider (31) is slidably arranged on the guide rail (12), and a plurality of positioning holes (121) adapted to and corresponding to the positioning pins (35) are provided on the guide rail (12); An annular groove (345) is formed on the outer wall of the second thumbwheel (34), and a slope block (36) is fixed to one end of the annular groove (345).

3. A guide wire insertion guide device for cardiovascular intervention surgery according to claim 2, characterized in that: The inner wall of the rotating groove (311) is symmetrically provided with arc grooves (312), the arc grooves (312) and the rotating groove (311) are coaxially arranged, first arc rails (331) are coaxially fixed on both axial sides of the first thumbwheel (33), and second arc rails (341) are coaxially fixed on both axial sides of the second thumbwheel (34), the first arc rail (331) and the second arc rail (341) form a circular rail, and the circular rail rotates along the arc groove (312).

4. A guide wire insertion guide device for cardiovascular intervention surgery according to claim 1, characterized in that: A guide rod (332) is symmetrically fixed on the side of the first dial wheel (33) away from the arc surface, a guide hole (342) adapted to the guide rod (332) is provided on the side of the second dial wheel (34) close to the first dial wheel (33), the second dial wheel (34) is also provided with a spring groove (343) arranged in the same direction as the guide rod (332), and a second spring (344) is fixed between the spring groove (343) and the first dial wheel (33).

5. A guide wire insertion guide device for cardiovascular intervention surgery according to claim 2, characterized in that: A connector (11) is fixed to one end of the guide rail (12), and a blood guide shell (13) is fixed to the other end. The connector (11) is provided with a through hole (111) connected to a guide wire storage tube (40). One end of the blood guide shell (13) close to the connector (11) is connected to a guide tube (131). The through hole (111), the guide tube (131), the guide wire storage tube (40), and the circular wheel are coaxially arranged. One side of the blood guide shell (13) is connected to a blood outlet tube (14).

6. A guide wire insertion guide device for cardiovascular intervention surgery according to claim 1, characterized in that: The guidewire storage tube (40) is spirally coiled on a coiling seat (50), and the coiling seat (50) includes a plurality of annularly distributed support rods (51), and a plurality of bayonet holes (52) are provided on the support rods (51), and the bayonet holes (52) are adapted to the guidewire storage tube (40).

7. A guide wire insertion guide device for cardiovascular intervention surgery according to claim 5, characterized in that: A first spring (32) is fixed between the blood guiding shell (13) and the slider (31).

8. A guide wire insertion guide device for cardiovascular intervention surgery according to claim 5, characterized in that: The blood guiding shell (13) and the catheter sheath (20) are connected via a connecting tube (21) with a frustum-shaped structure.

9. A guide wire insertion guide device for cardiovascular intervention surgery according to claim 1, characterized in that: Rubber pads (37) are fixedly mounted on opposite sides of the first thumbwheel (33) and the second thumbwheel (34), and the guide wire is clamped between the two rubber pads (37).

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