Electrode wire shaping device for a cardiac pacemaker

Abstract

The application discloses a heart pacemaker electrode guide wire shaping device in the technical field of heart pacemaker implantation, which comprises a guide clamp seat, clamping columns, clamping blocks and lifting columns, the vertical side wall is an arc surface, a plurality of clamping columns are arranged in an arc line on the top of the guide clamp seat in a uniform manner, and the vertical side wall on one side of each clamping column is protruded outside the inner arc surface of the guide clamp seat, the specific shape can hold the electrode guide wire at a specific angle, the electrode guide wire can be pulled and shaped from the holding with the specific arc, stable deformation with a set angle is formed, the arc of the guide clamp seat can be changed, the size and shape of the ventricle cavity of a patient are adjusted, so that the arc of the guide wire shaping is changed, and the deformation and angle of the electrode guide wire are more suitable for the size, angle and the like of the ventricle cavity of the corresponding patient, meanwhile, the shaping of the electrode guide wire is more convenient, the shaping angle is more stable, and the success rate is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of cardiac pacemaker implantation, and in particular to an electrode guide wire shaping device for a cardiac pacemaker. Background Art

[0002] A pacemaker is an electronic therapeutic device implanted in the body. It emits electrical pulses powered by a battery through a pulse generator. These pulses are conducted through wire electrodes to stimulate the myocardium that the electrodes contact, causing the heart to become excited and contract, thereby achieving the purpose of treating heart dysfunction caused by arrhythmia.

[0003] An artificial cardiac pacing system primarily consists of two parts: a pulse generator and an electrode guidewire. The pulse generator is often referred to solely as a pacemaker. In addition to the aforementioned pacing functions, the pacing system also has a sensing function that transmits the heart's own electrical activity back to the pulse generator. A pacemaker primarily consists of a power source (i.e., a battery, currently primarily lithium-iodine batteries) and electronic circuitry, capable of generating and outputting electrical pulses. The electrode guidewire is a conductive metal wire wrapped in an insulating layer. Its function is to transmit the pacemaker's electrical pulses to the heart and transmit the heart's intracavitary electrocardiogram to the pacemaker's sensing circuitry.

[0004] The pulse generator regularly emits pulsed currents of a certain frequency, which are transmitted through wires and electrodes to the myocardium (atria or ventricles) they contact. This external electrical stimulation excites local myocardial cells, which are then transmitted to the surrounding myocardium through gap junctions or intercalated disc junctions between cells, causing the entire atria or ventricle to become excited and subsequently contract. It is important to emphasize that the myocardium must have the functions of excitation, conduction, and contraction for cardiac pacing to be effective.

[0005] During the operation, the axillary vein or subclavian vein needs to be punctured, and the electrode is placed into a specific part of the heart cavity through this pathway. The tail end of the electrode is connected to the pacemaker system, and the pacemaker is placed in a pouch under the skin.

[0006] The ventricular pacing electrode passes through the venous system, sequentially entering the right atrium, tricuspid valve annulus, and right ventricle, and is placed in a specific part of the right ventricle according to needs and purposes. This path has multiple bends. The ventricular pacing electrode is made of a relatively soft material and has a hollow tube inside. The shaped pacing electrode guide wire is placed into the pacing electrode tube, so that the pacing electrode maintains a certain elastic shape, so that it can reach the specific part of the right ventricle relatively smoothly. Depending on the intended location of the pacing electrode in the right ventricle, the shaping requirements of the pacing electrode guide wire are different. The patient's right atrium and right ventricle are different in size, and the heart transposition is different, so the shaping requirements of the pacing electrode guide wire are also different.

[0007] Shaping the pacemaker electrode guidewire is a key step in implanting the right ventricular pacing electrode at the target site. Currently, in clinical practice, pacemaker electrode guidewire shaping is performed manually by the surgeon. The straight guidewire is shaped into a certain curve based on their own experience. After implantation into the right ventricle, the guidewire is withdrawn and reshaped again according to the target site, or the guidewire is replaced and reshaped again. Sometimes, the ideal effect cannot be achieved even after repeated attempts. It is especially difficult for some inexperienced surgeons to achieve reasonable shaping. This will increase the operation time, radiation dose, and surgical risks for the patient, and reduce the surgical effect.

[0008] At present, there is a need for a pacing electrode guide wire shaping device that can adjust the relative position and curvature of the various components of the shaping device according to the target site of electrode placement, the size of the patient's heart cavity and the specific situation of transposition, so as to change the reasonable curvature of the guide wire.

[0009] Based on this, the present invention designs an electrode guide wire shaping device for a pacemaker to solve the above problems. Summary of the Invention

[0010] The purpose of the present invention is to provide an electrode guide wire shaping device for a pacemaker, which can clamp the electrode guide wire at a specific angle, pull the electrode guide wire out from the clamping of this specific curvature and shape it to form a stable deformation of a set angle. The curvature of the guide clamp seat can be changed and adjusted according to the size and shape of the patient's ventricular cavity, thereby changing the curvature of the guide wire shaping, so that the deformation and angle of the electrode guide wire are more suitable for the corresponding patient's ventricular cavity size, angle, etc., and at the same time, the shaping of the electrode guide wire is more convenient, the shaping angle is more stable, and the success rate is higher.

[0011] The present invention is implemented as follows: a device for shaping an electrode guide wire of a cardiac pacemaker, comprising:

[0012] The guide clamp seat is a long strip structure with an arched cross section, a curved vertical sidewall, and flat top and bottom. A lifting hole is vertically provided on the top of one end of the guide clamp seat, and a docking hole is horizontally provided on the vertical curved surface of the guide clamp seat. The docking hole horizontally penetrates both sides of the curved surface of the guide clamp seat.

[0013] The clamping column is a vertical columnar structure. A plurality of the clamping columns are vertically fixedly installed on the top of the guide clamping seat. The plurality of the clamping columns are evenly arranged in an arc on the top of the guide clamping seat, and the plurality of the clamping columns are on the same side of the lifting hole, and a vertical side wall of each of the clamping columns protrudes outside the inner arc surface of the guide clamping seat;

[0014] The lifting column is a columnar structure, the top of which is rotatably connected to a rotating clamping block via a spring shaft. The lower end of the lifting column is inserted into the lifting hole and can be raised and lowered. The rotating clamping block can be rotated apart and abutted against the adjacent side wall of the clamping column.

[0015] The clamping block is a vertical plate structure with an arched cross section and an arcuate vertical side surface. A docking plate is horizontally provided on the outwardly arched vertical arcuate side wall of the clamping block, and the docking plate is horizontally slidably arranged in the docking hole along the front-to-back direction.

[0016] The raised arc surface of the clamping block can be horizontally slid and separated, and is pressed against the vertical side wall of the clamping column raised on the inner arc surface of the guide clamp seat.

[0017] Furthermore, locking grooves are formed on the upper and lower planes of the docking hole, and locking ridges are formed on the upper and lower planes of the docking plate, and the locking ridges can be detachably clamped in the locking grooves.

[0018] The fitting planes of the docking plate and the docking hole in the vertical direction are clearance fit, and the locking rib and the locking groove are transition fit;

[0019] When the clamping block and the clamping column are slidably pressed against each other, the docking plate passes through the docking hole and extends out of the guide clamp seat.

[0020] Furthermore, the vertical side surface of the clamping column is provided with an inwardly concave fitting arc surface, and the fitting arc surface of each clamping column is raised and flush with the inner arc surface of the guide clamp seat, and the fitting arc surface has the same radius and center as the outer arc surface of the clamping block;

[0021] When the clamping block and the clamping column slide and abut against each other, the outer arc surface of the clamping block is clamped and fitted with the fitting arc surface of each clamping column.

[0022] Furthermore, the lifting column and the plurality of clamping columns are arranged in sequence in an arc shape, and the lifting column is at the front end;

[0023] The lifting column and the lifting hole are connected by threads, and the lifting column and the lifting hole are transitionally matched.

[0024] Furthermore, the spring shaft is a shaft with a torsion spring disposed therein, and the rotating clamp is clamped tightly against the vertical side wall of the clamping column by the torsional force of the spring shaft.

[0025] The beneficial effects of the present invention are as follows: 1. The device clamps the electrode guide wire by cooperating with the clamping block and the clamping column, and the curvature of the clamping column and the clamping block can be adjusted slightly, and both can be stably clamped. The guide shaping no longer requires the doctor to manually pinch and shape, which reduces the uncertainty of human strength and angle, improves the stability of the electrode guide wire shaping angle, and also improves the shaping success rate, reduces the number of shaping times, thereby reducing the operation time and reducing the surgical risk;

[0026] 2. This device has a lifting column that can be adjusted in height, thereby adjusting the bending angle of the end of the electrode guide wire. The bending angle of the end of the electrode guide wire can be adjusted slightly, so it can be suitable for patients with different angles of the heart and blood vessels. It is easy to adjust and the electrode guide wire is very stable, making it easy to use.

[0027] 3. The present invention makes it more convenient to clamp the electrode guide wire through the mutual coordination and assembly of the guide clamp seat and the clamping block. It can more easily adjust and clamp the angle and position of the electrode guide wire, facilitates the flexible adjustment of the shaping angle, and after the shaping curvature is adjusted, the guide wire can be stably clamped to ensure the shaping curvature angle, and the bending elevation angle can be conveniently adjusted. It is easy to use and easy to clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Figure 1 This is a top view of the guide clamp seat and the clamping block of the present invention in an unclamped state;

[0030] Figure 2 This is a schematic diagram of the front structure of the guide clamp seat of the present invention;

[0031] Figure 3 This is a schematic diagram of a half-section structure of the clamping block of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the butt joint plate of the convex arc surface of the clamping block of the present invention;

[0033] Figure 5 A top view of the electrode guide wire being clamped by the guide clamp and the clamping block of the present invention;

[0034] Figure 6 Schematic diagram of the docking hole structure of the concave surface of the guide clamp seat of the present invention;

[0035] Figure 7 This is a top view of the internal structure of the docking hole of the present invention;

[0036] Figure 8 This is a front view of the guide clamping seat and the clamping block of the present invention;

[0037] Figure 9 This is a schematic diagram of the structure of a single clamping column of the present invention.

[0038] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0039] 1-guide clamp seat, 11-docking hole, 12-lifting hole, 13-locking groove, 2-clamping block, 21-docking plate, 22-locking edge, 3-clamping column, 31-fitting arc surface, 4-lifting column, 41-rotating clamp block, 42-spring shaft. DETAILED DESCRIPTION

[0040] See also Figures 1 to 9 As shown, the present invention provides a technical solution: a pacemaker electrode guide wire shaping device, comprising:

[0041] The guide clamp seat 1 is a long strip structure with an arched cross-section, a curved vertical sidewall, and flat top and bottom. A lifting hole 12 is vertically provided at the top of one end of the guide clamp seat 1. A docking hole 11 is horizontally provided on the vertical curved surface of the guide clamp seat 1. The docking hole 11 horizontally penetrates both sides of the curved surface of the guide clamp seat 1.

[0042] The clamping column 3 is a vertical columnar structure. A plurality of the clamping columns 3 are vertically fixedly installed on the top of the guide clamping base 1. The plurality of the clamping columns 3 are evenly arranged in an arc on the top of the guide clamping base 1. The plurality of the clamping columns 3 are all on the same side of the lifting hole 12, and a vertical side wall of each of the clamping columns 3 protrudes outside the inner arc surface of the guide clamping base 1.

[0043] The lifting column 4 is a columnar structure, and its top is rotatably connected to a rotating clamping block 41 via a spring shaft 42. The lower end of the lifting column 4 is inserted into the lifting hole 12 and can be raised and lowered. The rotating clamping block 41 can be rotated apart and abutted against the side wall of the adjacent clamping column 3.

[0044] The clamping block 2 is a vertical plate structure with an arched cross-section and a curved vertical side surface. A docking plate 21 is horizontally provided on the outwardly arched vertical curved side wall of the clamping block 2. The docking plate 21 is horizontally slidably arranged in the docking hole 11 along the front-to-back direction, that is, it slides horizontally along the front and rear sides of the curved surface.

[0045] The raised arc surface of the clamping block 2 can slide horizontally and separate from the vertical side wall of the clamping column 3 protruding from the inner arc surface of the guide clamp 1, and can clamp the electrode guide wire at a specific angle through a specific shape, and pull the electrode guide wire out of the clamping of this specific arc to form a stable deformation of the set angle. The arc of the guide clamp can be changed and adjusted according to the size and shape of the patient's ventricular cavity, thereby changing the arc of the guide wire shaping, so that the deformation and angle of the electrode guide wire are more suitable for the corresponding patient's ventricular cavity size, angle, etc., and at the same time, the shaping of the electrode guide wire is more convenient, the shaping angle is more stable, and the success rate is higher.

[0046] Among them, locking grooves 13 are recessed on the upper and lower planes of the docking hole 11, and locking ridges 22 are convexly provided on the upper and lower planes of the docking plate 21. The locking ridges 22 can be detachably clamped in the locking grooves 13;

[0047] The butt joint plate 21 and the butt joint hole 11 have a clearance fit in the upper and lower mating planes, and the locking rib 22 and the locking groove 13 have a transition fit. Through the cooperation between the locking groove 13 and the locking rib 22, the butt joint plate 21 can be stably clamped with the butt joint hole 11 at the set position, so that the clamping block 2 of the device can be clamped with the guide clamping seat 1 when pushed into place;

[0048] The vertical side surface of the clamping column 3 is provided with an inwardly concave fitting arc surface 31. The fitting arc surface 31 of each clamping column 3 is raised and flush with the inner arc surface of the guide clamp seat 1, and the fitting arc surface 31 has the same radius and center as the outer arc surface of the clamping block 2;

[0049] When the clamping block 2 and the clamping column 3 slide and press together, the outer arc surface of the clamping block 2 is clamped and pressed together with the fitting arc surface 31 of each clamping column 3, so that when the clamping block 2 is pushed and clamped with the guide clamp 1, it can ensure that the clamping block 2 and the clamping column 3 fit together to clamp the electrode guide wire;

[0050] The lifting column 4 and the plurality of clamping columns 3 are arranged in an arc shape, and the lifting column 4 is at the front end;

[0051] The lifting column 4 is connected to the lifting hole 12 by a threaded connection, and the lifting column 4 and the lifting hole 12 are transitionally matched, which facilitates the adjustment of the height of the lifting column 4 and can stably clamp at an appropriate height. The clamping columns 3 are arranged in an arc shape in sequence to form a specific curvature. The arrangement of the multiple clamping columns 3 is based on the inner arc surface of the guide clamping seat 1. The arc formed by the multiple clamping columns 3 is also the same as the inner arc surface of the guide clamping seat 1 and the convex outer arc surface of the clamping block 2, so that the electrode guide wire can be clamped at a set curvature.

[0052] The spring shaft 42 is a shaft with a torsion spring inside. The rotating clamp 41 is clamped and fitted to the vertical side wall of the clamping column 3 by the torsional force of the spring shaft 42. When the rotating clamp 41 is not subjected to external force, it can actively clamp on the side wall of the clamping column 3, thereby clamping the electrode guide wire. It is easy to use. If the clamping force is insufficient, the elastic force of the spring shaft 42 can be strengthened. If necessary, a magnet can be installed on the rotating clamp 41 to increase the clamping force between the rotating clamp 41 and the clamping column 3.

[0053] When the clamping block 2 and the clamping column 3 are slid and pressed against each other, the docking plate 21 extends through the docking hole 11 and out of the guide clamp seat 1 , so as to facilitate the reciprocating pushing of the clamping block 2 and guide the sliding of the clamping block 2 .

[0054] In a specific embodiment of the present invention:

[0055] An embodiment of the present invention provides an electrode guide wire shaping device for a pacemaker. The technical problem encountered by the present invention is that during the existing pacemaker operation, the electrode guide wire of the pacemaker is shaped by the doctor using his fingers to pinch different angles. The shaping depends entirely on experience, and it is difficult to achieve a uniform and stable shaping angle each time. The shaping angle each time is also prone to being excessive or insufficient, resulting in deviations, resulting in a large number of shaping times, and often requiring multiple spare electrode guide wires for reshaping. The shaping of the electrode guide wire takes up too much energy and time of the operation, and the increase in operation time often increases the risk of the operation.

[0056] The technical problem solved by the present invention is: to provide a stable curvature through a simpler device, to clamp and shape the electrode guide wire, so as to achieve the purpose of controllable and stable shaping of the curvature and angle of the electrode guide wire.

[0057] The technical effects achieved are as follows: 1. The device clamps the electrode guide wire through the cooperation of the clamping block 2 and the clamping column 3. The curvature of the clamping column 3 and the clamping block 2 can be stably shaped. The guide shaping no longer requires the doctor to manually pinch and shape, reducing the uncertainty of human strength and angle, improving the stability of the electrode guide wire shaping angle, and also improving the shaping success rate, reducing the number of shaping times, thereby reducing the operation time and reducing the surgical risk;

[0058] 2. This device has a lifting column 4, which can be adjusted in height within the lifting hole 12 of the guide clamp 1, thereby adjusting the bending angle of the end of the electrode guide wire. The bending angle of the end of the electrode guide wire can be slightly adjusted, so that it can be used for patients with different angles of the heart and blood vessels. The adjustment is convenient, the clamping of the electrode guide wire is very stable, and it is easy to use.

[0059] 3. The present invention makes it more convenient to clamp the electrode guide wire through the mutual coordination and assembly of the guide clamp 1 and the clamping block 2. It can also more easily adjust and clamp the angle and position of the electrode guide wire, facilitate flexible adjustment of the shaping angle, and the shaping curvature is stable, ensuring the shaping curvature angle, and can conveniently adjust the bending elevation angle. It is easy to use and easy to clamp.

[0060] The technical solution in the embodiment of the present invention is to solve the above problems, and the overall idea is as follows:

[0061] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0062] During manufacture, the device needs to be made of all stainless steel for easy sterilization. A disposable device can also be made of hard plastic. The guide clamping seat 1 and the clamping block 2 must be manufactured in advance. The vertical side walls of the guide clamping seat 1 and the clamping block 2 are both curved surfaces, and are arched structures when viewed from above. The curved surface radii of the guide clamping seat 1 and the clamping block 2 are the same, ensuring that the guide clamping seat 1 and the clamping block 2 can fit together.

[0063] The guide clamp seat 1 and the clamping block 2 are internally provided with an arc-shaped steel bar that can be bent and shaped. The steel bar can bend along the curvature of the guide clamp seat 1 and the clamping block 2, and the guide clamp seat 1 and the clamping block 2 are wrapped with PVC or rubber. The PVC or rubber wrapped outside the guide clamp seat 1 and the clamping block 2 needs to have a certain toughness and a certain hardness. The hardness is used to ensure that the guide wire can be shaped stably when clamping, and the toughness is to facilitate the guide clamp seat 1 and the clamping block 2 to bend and adjust, and can bend and deform along with the adjustment of the arc-shaped steel bar, thereby adjusting the curvature.

[0064] Then, a docking hole 11 is opened on the vertical side wall of the arc surface at the middle height of the guide clamp seat 1. The docking hole 11 needs to penetrate both sides of the arc surface of the guide clamp seat 1. The docking hole 11 is opened horizontally along the front and back direction of the arc surface and does not penetrate the arc ends of the guide clamp seat 1. The cross-sectional view of the docking hole 11 opened in the guide clamp seat 1 is as shown in FIG. Figure 7 As shown, locking grooves 13 are provided on the upper and lower bottom surfaces of the docking hole 11. The locking groove 13 is an arc-shaped groove recessed toward the guide clamp seat 1, and the groove depth does not exceed 2 mm. A vertical lifting hole 12 is also provided at one end of the guide clamp seat 1. The lifting hole 12 has an internal thread and is perpendicular to the top plane of the guide clamp seat 1.

[0065] Then make the clamping block 2, one side of the raised vertical arc surface of the clamping block 2 fits with the vertical concave surface of the guide clamp seat 1, and a docking plate 21 is fixed horizontally on the raised vertical arc surface of the clamping block 2. The width of the docking plate 21 is less than the width of the docking hole 11, and the thickness of the docking plate 21 is also less than the height of the docking hole 11, which makes it easy for the docking plate 21 to be inserted into the docking hole 11 easily and accurately, and the gap between the docking plate 21 and the docking hole 11 is within 1mm, preferably 0.5mm, so that it is easy to insert and can be stably plugged in. At the same time, locking ridges 22 are convexly provided on the top and bottom planes of the docking plate 21. The locking ridges 22 are convex arc structures with a semicircular cross section. The cross-sectional shape of the locking rib 22 is the same as that of the locking groove 13, and the size is also the same. When the docking plate 21 is tightly inserted into the docking hole 11, the locking rib 22 is just clamped in the locking groove 13, and the locking groove 13 and the locking rib 22 are transitionally matched, so that the clamping block 2 can be clamped on the guide clamping seat 1 and is not easy to slide. The raised locking rib 22 and the docking hole 11 are interference fit to ensure clamping and will not loosen during the pulling of the electrode guide wire. The locking groove 13 is set close to the inner arc edge of the guide clamping seat 1, and the distance from the arc edge is 4mm, so that the locking rib 22 can be clamped by pushing 4mm in the docking hole 11;

[0066] When fixing the clamping column 3, the clamping column 3 is vertically fixed on the top plane of the guide clamping seat 1. The clamping column 3 is a vertical cylinder, and one side of the vertical side wall of the clamping column 3 protrudes outside the inner arc surface of the guide clamping seat 1, ensuring that when the clamping block 2 clamps the guide clamping seat 1, the clamping block 2 first fits and clamps the clamping column 3;

[0067] The side where the clamping column 3 fits with the clamping block 2 is a curved fitting arc surface 31. The fitting arc surface 31 has the same radius as the outer arc surface of the clamping block 2 and fits tightly. The fitting surface is a vertical long arc surface, and there are three clamping columns 3 on the top of each guide clamping seat 1.

[0068] The lifting hole 12 needs to be set at the arc end of the guide clamp 1, which can be as follows Figure 7 The leftmost end shown in the figure can also be the rightmost end. The leftmost end is preferred because it is convenient for the doctor to pull the electrode guide wire with his right hand, and it is more convenient for right-handed people to operate.

[0069] The lifting column 4 is connected to the lifting hole 12 through a thread. The lifting hole 12 is a recessed internal thread, while the lifting column 4 is a convex external thread. Therefore, when the lifting column 4 and the lifting hole 12 are in a transition fit, they can not only be lifted and lowered through the thread, but also ensure a tight fit. At the same time, the lifting column 4 and the lifting hole 12 can also be stably and tightly docked, effectively avoiding offset or displacement.

[0070] The top of the lifting column 4 is connected to the rotating clamp 41 through the spring shaft 42. When there is no external force, the rotating clamp 41 is subjected to the elastic force of the spring shaft 42, so that the rotating clamp 41 continues to rest against the side wall of the clamping column 3 closest to it. Figure 1 As shown, the height of the contact surface is the cross-sectional height of the rotating clamp 41, which is generally about 1 cm, and the width of the fitting surface between the entire rotating clamp 41 and the clamping column 3 does not exceed 2 mm. It is required that the fitting surface is not a wide arc surface. It is best to have a narrow vertical surface, which is only used to clamp the very end of the electrode guide wire.

[0071] When the present invention is in use, the lifting column 4 is rotated and lifted in the lifting hole 12. Because the lifting column 4 and the lifting hole 12 are transition threads, they fit tightly and are relatively easy to rotate. After being rotated and lifted to the appropriate position, they are connected tightly to ensure that the lifting column 4 can be stably erected and supported at any position in the lifting hole 12. Then the lifting column 4 is adjusted to a suitable height, the rotating clamping block 41 is opened, the electrode guide wire is placed against the appropriate height position, and the rotating clamping block 41 is slowly released. Under the control of the spring shaft 42, the rotating clamping block 41 rebounds and clamps the electrode guide wire between the rotating clamping block 41 and the adjacent clamping column 3, clamping it into a straight section. At this time, the docking plate 21 is docked in the docking hole 11, but there is no clamping band with a certain gap. Then the electrode guide wire is bent along the inner arc surface of the guide clamp seat 1 so that the electrode guide wire is placed against the fitting arc surfaces 31 of the multiple clamping columns 3. Figure 5 As shown, adjust the fitting height position of the electrode guide wire on the clamping column 3. After the adjustment is completed, pinch the clamping block 2 to make the docking plate 21 slide in the docking hole 11, so that the vertical raised arc surface of the clamping block 2 is clamped with the fitting arc surface 31 of the clamping column 3, thereby clamping the electrode guide wire. At this time, the electrode guide wire is in a bent clamping state, and then the right hand pulls the electrode guide wire. The electrode guide wire is a very smooth metal guide wire, and the fitting surface between the clamping block 2 and the clamping column 3 is also a smooth surface, which is convenient for the sliding of the electrode guide wire and has a certain clamping force. The electrode guide wire can slide smoothly while being supported by a certain force, so that when it is pulled, a specific deformation based on the arc of the device is formed. The electrode guide wire is bent and shaped into an arc near the right end toward the arc surface of the clamping block 2, and the left end clamped by the lifting column 4 forms a multi-angle curved arc that bends downward in the direction of the guide clamp seat 2 and also bends toward the arc surface of the clamping block 2. It is exactly similar to the bending angle and shape of the connection between the heart and blood vessels, which makes it easy to extend the electrode guide wire that has been shaped after being pulled and slid into the designated position of the heart.

[0072] Because the height of the lifting column 4 of the device for clamping the electrode guide wire can be adjusted, and the arc angle between the entire clamping block 2 and the clamping column 3 can be stably clamped, and the guide clamp seat 1 and the clamping block 2 are internally provided with carbon steel that can be bent and shaped, and the guide clamp seat 1 and the clamping block 2 are externally wrapped with PVC with a certain toughness or rubber with toughness but a certain hardness. Such structure and material can make the guide clamp seat 1 and the clamping block 2 change the clamping angle of the electrode guide wire according to the different shapes of the heart and blood vessels of each patient, forming a clamping at a specific angle, and the electrode guide wire is pulled and shaped from the clamping of this specific arc to form a stable deformation of the set angle, and the curvature of the guide clamp seat can be changed according to the patient's heart The size and shape of the ventricular cavity can be adjusted to change the curvature of the guide wire, so that the deformation and angle of the electrode guide wire are more suitable for the size and angle of the ventricular cavity of the corresponding patient. At the same time, the shaping of the electrode guide wire is more convenient, the shaping angle is more stable, and the success rate is higher. Therefore, adjustments can be made to the slightly different bending angles of each patient's heart and blood vessels, and the bending curvature of the entire electrode guide wire can be ensured to be stable, so that it can be conveniently used during surgery, and the electrode guide wire can be shaped more stably. The bending angle is stable and there is no need to manually calibrate the angle. The operation is more convenient, and the stability and accuracy of the electrode guide wire shaping are effectively improved, which reduces the operation time and reduces the risk of heart surgery.

[0073] During pacemaker implantation surgery, the pacing lead is passed through the sheath and superior vena cava into the right ventricle, where it is fixed to the appropriate location for ventricular pacing. The reshaped lead is inserted into the lumen of the pacing lead, maintaining its shape and making it easier to reach the specific location in the ventricular cavity. This allows for more effective pacing and is better for the patient's health. This also reduces surgical time and radiation exposure, improving surgical efficiency and effectiveness.

[0074] The use of this pacing electrode guide wire shaping device makes it easier for the pacing electrode to reach and be fixed at certain reasonable and specific positions in the heart, which is more conducive to the homogeneity of the surgery and increases patient benefits.

[0075] In addition, in the description of the present invention, it should be noted that when terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0076] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A pacemaker electrode guide wire shaping device, characterized in that: include: The guide clamp seat (1) is a long strip structure with an arched cross section, a curved vertical side wall, and a flat top and bottom. A lifting hole (12) is vertically provided at the top of one end of the guide clamp seat (1). A docking hole (11) is horizontally provided on the vertical curved surface of the guide clamp seat (1). The docking hole (11) horizontally penetrates both sides of the curved surface of the guide clamp seat (1). The clamping column (3) is a vertical columnar structure, and a plurality of the clamping columns (3) are vertically fixedly installed on the top of the guide clamping seat (1). The plurality of the clamping columns (3) are evenly arranged in an arc on the top of the guide clamping seat (1), and the plurality of the clamping columns (3) are all on the same side of the lifting hole (12), and a vertical side wall of one side of each of the clamping columns (3) protrudes outside the inner arc surface of the guide clamping seat (1); The lifting column (4) is a columnar structure, and its top is rotatably connected to a rotating clamping block (41) via a spring shaft (42). The lower end of the lifting column (4) is inserted into the lifting hole (12) and can be lifted and lowered. The rotating clamping block (41) can be rotated and separated to abut against the side wall of the adjacent clamping column (3). The clamping block (2) is a vertical plate structure, its cross section is arched, and its vertical side surface is an arc surface, and a docking plate (21) is horizontally arranged on the vertical arc surface side wall of the clamping block (2) that arches outward, and the docking plate (21) is horizontally slidably arranged in the docking hole (11) along the front-back direction; The raised arc surface of the clamping block (2) can be slid and separated horizontally, and is pressed against the vertical side wall of the clamping column (3) raised on the inner arc surface of the guide clamp seat (1); The guide clamp seat (1) and the clamping block (2) are internally provided with curved steel bars capable of being bent and shaped, and the steel bars can be bent along the curvature of the guide clamp seat (1) and the clamping block (2), and the guide clamp seat (1) and the clamping block (2) are externally wrapped with PVC or rubber.

2. The device for shaping an electrode guide wire of a cardiac pacemaker according to claim 1, characterized in that: Locking grooves (13) are recessed on the upper and lower planes of the docking hole (11), and locking ridges (22) are convexly provided on the upper and lower planes of the docking plate (21), and the locking ridges (22) can be detachably clamped in the locking grooves (13); The upper and lower mating planes of the docking plate (21) and the docking hole (11) are clearance-fitted, and the locking rib (22) and the locking groove (13) are transition-fitted; When the clamping block (2) and the clamping column (3) are slidably pressed against each other, the docking plate (21) passes through the docking hole (11) and extends outside the guide clamp seat (1).

3. The device for shaping an electrode guide wire of a cardiac pacemaker according to claim 1, characterized in that: The vertical side surface of the clamping column (3) is provided with an inwardly concave fitting arc surface (31), and the fitting arc surface (31) of each clamping column (3) is raised and flush with the inner arc surface of the guide clamp seat (1), and the fitting arc surface (31) has the same radius and center as the outer arc surface of the clamping block (2); When the clamping block (2) and the clamping column (3) slide and press together, the outer arc surface of the clamping block (2) and the fitting arc surface (31) of each clamping column (3) are clamped and fitted together.

4. The device for shaping an electrode guide wire of a cardiac pacemaker according to claim 1, characterized in that: The lifting column (4) and the plurality of clamping columns (3) are sequentially arranged in an arc shape, and the lifting column (4) is at the front end; The lifting column (4) and the lifting hole (12) are connected via threads, and the lifting column (4) and the lifting hole (12) are in transition fit.

5. The device for shaping an electrode guide wire of a cardiac pacemaker according to claim 1, characterized in that: The spring shaft (42) is a shaft with a torsion spring disposed therein, and the rotating clamp (41) is clamped and fitted on the vertical side wall of the clamping column (3) by the torsion force of the spring shaft (42).

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