CN212547970U - Connecting wire for pacemaker implantation test - Google Patents

Abstract

The utility model discloses a connecting wire for pacemaker implantation test, which comprises an electric wire and a wire joint connected with the electric wire, wherein an electrode wire can be connected with the wire joint; when the electrode lead rotates, at least part of the lead joint can rotate along with the rotation of the electrode lead; the utility model discloses a setting of wire joint for the electrode wire can not twine and knot, thereby makes at the operation in-process, can last accurate detection electrocardio and electrode impedance change in real time, and then makes the completion operation that the art person can be more smooth, and the risk is lower, and the success rate is higher.

Description

Connecting wire for pacemaker implantation test

Technical Field

The utility model belongs to the technical field of medical auxiliary assembly, especially, relate to a connecting wire is used in test is implanted to pacemaker.

Background

The cardiac pacemaker is an electronic therapeutic apparatus implanted in a body, an electric pulse which is provided with energy by a battery is delivered by a pulse generator, and the conduction of a lead electrode stimulates the cardiac muscle contacted with the electrode to excite and contract the heart, thereby achieving the aim of treating the cardiac dysfunction caused by certain arrhythmia; wherein, one end of the electrode lead is an electrode end which is used for connecting a pacemaker, the other end is a screwing end which is used for implanting into the heart of a patient, and the electrode end and the screwing end are both provided with a cathode and an anode; the anode at the electrode terminal is a ring structure, and is also called an anode ring.

During the operation, the operator sends the screwing end of the electrode lead into the heart of the patient and adheres to the endocardium of the myocardium, and then the cathode of the screw head of the electrode lead is screwed into the myocardium by rotating the electrode lead; and at the in-process of screw-in of end of screwing in, need monitor the intracavitary heart electrograph and the electrode impedance change condition of screwing in the negative pole end under the state of pacing or not pacing at any time with the program control appearance of electrocardiograph, see through the observation of these parameter variations for the art person can be more accurate control electrode screw-in degree of depth, so that the operation can be accomplished better, more safely.

However, in the prior art, the electrode end of the electrode lead is connected and fixed with the monitoring device through the alligator clip of the connection line, and the other end of the connection line is connected with the detector, so that when the operator rotates the electrode lead, the electrode end cannot rotate synchronously because of being fixed by the alligator clip, the connection line is wound and knotted, and the operation of the operator is seriously affected Puncture, pacing threshold rise, etc.).

Disclosure of Invention

The utility model discloses an overcome prior art not enough, provide a monitoring is timely, stable, accurate pacemaker implants and uses connecting wire.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a connecting wire for a pacemaker implantation test comprises an electric wire and a lead connector connected with the electric wire, wherein an electrode lead can be connected with the lead connector; when the electrode lead rotates, at least part of the lead joint can rotate along with the rotation of the electrode lead; through the arrangement of the wire joint, the electrode end of the electrode wire can be connected with the wire joint, so that when an operator rotates the electrode wire in the operation process, at least part of the wire joint can synchronously rotate along with the rotation of the electrode wire, the electrode wire can not be wound and knotted, the operator does not need to take the electrode end off the alligator clamp to untie the wound and knotted part, and does not need to assist an assistant to rotate the electrode end connected with the alligator clamp, the operation is more convenient, the wire joint can transmit electric signals to a monitor and a pacemaker program-controlled instrument in real time, the operator can master the changes of electrocardio and electrode impedance in real time, the operator can accurately master whether the screwing end reaches the site or breaks through the interval when screwing in the site, the accuracy of screwing in the site is guaranteed, and the pain of the patient is relieved, the operation can be completed more quickly, and the success rate of the operation is higher; simultaneously because the electrode tip no longer is fixed by the crocodile clamp centre gripping, so can not cause the damage to the electrode tip to when making electrode wire and pacemaker link to each other, it is more stable to connect, and then guarantees that the pacemaker can be stable play the effect of assisting patient's cardiac pacing all the time.

Furthermore, the lead joint comprises a shell, a rotating head capable of rotating back and forth and a rotating connecting part for connecting with the electrode lead, and the rotating connecting part is arranged on the rotating head; through the arrangement of the structure, the electrode lead can be connected with the rotary head on the lead joint through the rotary connecting part, so that when the electrode lead rotates, the rotary head can rotate along with the rotation of the electrode lead, and the purpose of preventing the electrode lead from being wound and knotted is achieved.

Furthermore, the lead joint also comprises an elastic sheet matched with the electrode lead; through the setting of above-mentioned structure for electrode wire and wire connect between be connected more stable, guarantee the transmission that the signal of telecommunication can be more stable, thereby make the data that show on monitor and pacemaker program control appearance more accurate, and then make the control situation that art person can be better, make the operation go on more smoothly.

Further, the shell fragment includes first fixed part and with the electrode end anticreep complex second fixed part of electrode wire, through the setting of above-mentioned structure for the difficult accident of electrode wire connects the separation with the wire, thereby makes going on that the operation can be more stable.

Further, the diameter of the second fixing part is gradually reduced from a notch close to the rotating connecting part to a notch far away from the rotating connecting part; through the setting of above-mentioned structure, when having realized the anticreep complex of turning round and electrode end, also realized turning round and electrode end between the electricity even, and electrode end and shell fragment and the turning can not take place relative rotation between the head to when guaranteeing that the signal of telecommunication can stable transmission, the electrode end can not worn and torn, has further guaranteed signal of telecommunication's stability.

Furthermore, the first fixing part is arranged in an annular structure, and the outer diameter of the first fixing part is larger than the diameter of the rotating connecting part; through the setting of above-mentioned structure, realized that the shell fragment is fixed with being connected between the rotation connecting portion, when guaranteeing that the electrode wire rotates, can drive the shell fragment and turn round synchronous rotation for motor wire and the turn round between be connected more stably, signal of telecommunication transmission can not receive the interference.

Furthermore, the lead joint also comprises a connector for connecting the rotary head and the electric wire; through the setting of above-mentioned structure, realized the electricity between bull and the electric wire and connected, guaranteed the stable transmission of signal of telecommunication for the operator can be better the control patient's situation, can be more quick and accurate find correct position.

Further, the connector comprises a connecting convex part; the rotating head is provided with a rotating groove matched with the connecting convex part; through the arrangement of the structure, the rotating head can be fixed in the shell, and meanwhile, the rotating head is matched with an electric wire in an electric connection mode.

Furthermore, the rotary groove is arranged in a flaring structure; through the setting of above-mentioned structure for when the rotor can be fixed in the casing by the connector, can not influence the rotation of rotor again, and area of contact between rotor and the connector is invariable, the condition of separation often of contact often can not appear, thereby guarantees that the signal of telecommunication transmission between rotor and the connector is more stable, and then guarantees going on that the operation can be more smooth.

Furthermore, the connector also comprises a connecting column connected with the connecting convex part and a connecting groove arranged on the connecting column, and the shell is provided with an interface matched with the connecting column; through the arrangement of the structure, the installation of the connector is convenient to fix, so that the fixing of the rotary head is realized, the connection between the rotary head and the electric wire is convenient, the disassembly and the assembly are more convenient, and the production is also convenient.

Furthermore, the lead joint also comprises a middle sleeve matched with the connector and an outer skin coated outside the shell and the middle sleeve; through the setting of above-mentioned structure for the connector can not rotate along with the rotation of turning round, thereby makes being connected between connector and the casing more stable, and the turning round also can with the connector keep stable electric connection cooperation, and then make the performance that the connecting wire can be stable, with the transmission of the signal of telecommunication accuracy to the monitor with on the programme-controlled appearance of pacemaker, make the art person can better monitor patient's situation.

To sum up, the utility model discloses a setting of wire joint for the electrode wire can not twine and tie a knot, thereby makes at the operation in-process, can last accurate detection electrocardio and electrode impedance change in real time, and then makes the completion operation that the art person can be more smooth, and the risk is lower, and the success rate is higher.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of a three-dimensional structure of the crocodile clip and the electric wire;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

fig. 4 is a schematic perspective view of the alligator clip of the present invention engaged with an electric wire (with the clip cover removed);

fig. 5 is a schematic view of the matching three-dimensional cross-sectional structure of the alligator clip and the electric wire of the present invention;

FIG. 6 is an enlarged schematic view at B of FIG. 5;

fig. 7 is a schematic diagram of the structure of the crocodile clip and the electric wire cooperating with each other;

fig. 8 is a schematic perspective view of an upper clamp arm of the present invention;

FIG. 9 is a schematic view of a three-dimensional structure of the middle and lower clamp arms and the connecting portion of the present invention;

fig. 10 is a schematic view of a three-dimensional structure of the wire connector and the wire according to the present invention;

fig. 11 is a schematic view of the three-dimensional cross-sectional structure of the wire connector and the wire according to the present invention;

FIG. 12 is an enlarged schematic view at C of FIG. 11;

fig. 13 is a schematic view of the explosion structure of the wire connector and the wire according to the present invention;

FIG. 14 is an enlarged schematic view at D of FIG. 13;

fig. 15 is a schematic perspective sectional view of the middle housing of the present invention;

fig. 16 is a schematic perspective view of the middle connection head of the present invention.

Detailed Description

As shown in fig. 1 to 16, a connection line for pacemaker implantation test includes a lead connector 2, an alligator clip 3 and an electric wire 1, wherein the alligator clip 3 includes an upper clip arm 31, a lower clip arm 32, an elastic member 33 and a connecting portion 34; the upper clamping arm 31 is connected with the lower clamping arm 32 through a connecting shaft 36, so that the upper clamping arm is rotatably matched with the lower clamping arm; the elastic piece 33 is a torsion spring and is arranged on the connecting shaft, one end of the torsion spring acts on the upper clamping arm, and the other end acts on the lower clamping arm, so that when no external force is applied, the upper and lower clamping arms act under the action of the torsion spring, and one ends of the upper and lower clamping arms are always mutually abutted, thereby realizing the clamping function; the connecting part 34 is mounted on the lower clamping arm 32, so that the crocodile clip 3 can be conveniently and electrically connected with the electric wire 1.

Specifically, the upper clamping arm 31 includes an upper clamp body 311, an upper connecting plate 312, an upper engaging tooth 313 and an upper convex tooth 314; the lower clamping arm 32 comprises a lower clamping body 321, a lower connecting plate 322, a lower tooth 323 and a lower convex tooth 324; the upper clamp body 311 and the lower clamp body 321 are both provided with rectangular parallelepiped thin plate structures and are made of medical stainless steel materials, and in other embodiments, the upper clamp body and the lower clamp body can also be made of other materials meeting medical standards; at least part of the surface of the edges of the two sides of the upper clamp body extends towards the direction of the lower clamp arm 32 to form an upper clamp edge 315; at least part of the surface of the edges of the two sides of the lower clamp body extends towards the direction of the upper clamp body to form a lower clamping edge 325; the surface area of the side edges of the upper clamp body and the lower clamp body is larger through the arrangement of the upper clamp edge and the lower clamp edge, and meanwhile, the surface of the outer side is kept flat, so that the clamp is not easy to scratch in use, and the force application is more convenient; at least part of the surface of one end of the upper clamp body 311 close to the lower clamp arm 32 extends downwards to form an upper convex tooth 314, upper tooth grooves 316 are reserved on two sides of the upper convex tooth, and the end part of the upper convex tooth is provided with an arc-shaped structure; at least part of the surface of one end of the lower clamp body 321 close to the upper clamp body extends upwards to form two lower convex teeth 324, a lower tooth groove 326 is formed between the two lower convex teeth, and the end parts of the lower convex teeth are arranged in an arc structure; when elastic component 33 is used on upper clamping arm 31 and lower clamping arm 32, upper protruding tooth 314 can be embedded in lower tooth's socket 326, and lower protruding tooth 324 can be embedded in upper tooth's socket 316, and after upper and lower protruding tooth put into upper and lower tooth's socket, between upper protruding tooth and lower tooth's socket, all leave the clearance between lower protruding tooth and the upper tooth's socket, thereby it is fixed to realize the centre gripping through the interlock of upper and lower protruding tooth, and because leave the clearance between upper and lower protruding tooth and upper and lower tooth's socket, and the volume of upper and lower protruding tooth is far greater than the volume of upper and lower rodent, thereby make the meshing of upper and lower protruding tooth can play the effect of better fixed anticreep, it is less to patient's health damage, be favorable to reducing patient's the area of wounding and degree, and then reduce the risk of patient postoperative infection, make the patient recover more easily.

Furthermore, the upper teeth 313 are continuous teeth formed by extending downwards at least partial surfaces of two side edges of the upper clamp body 311 close to one end of the upper teeth 315, and are distributed in an inclined state; the lower engaging teeth 323 are continuous protruding teeth formed by upward extending of at least partial surfaces of two side edges of one end of the lower clamp body 321 close to the lower protruding teeth 324, are distributed in an inclined state, and are meshed with each other to play a role in strengthening clamping, fixing and anti-falling off, and the protruding teeth of the upper and lower engaging teeth have small volume, so that the good clamping and fixing effect can be ensured, the wound degree of a patient is further reduced, the postoperative infection of the patient is avoided, and the patient can be cured more easily; at least part of the surfaces of two sides of one end of the lower clamp body 321 far away from the lower convex teeth 324 extend upwards to form a lower connecting plate 322 which is provided with a semicircular structure; at least part of the surface of the upper clamp body 311 corresponding to the lower connecting plate 322 extends downwards to form an upper connecting plate 312, the upper connecting plate is also provided with a semicircular structure, the two lower connecting plates are flared and slightly inclined outwards, the two upper connecting plates are both inclined inwards, so that the upper connecting plates can be arranged on the inner sides of the lower connecting plates, the upper connecting plates and the lower connecting plates are both provided with corresponding through holes, the connecting shaft 36 penetrates through the through holes on the lower connecting plates and the upper connecting plates, the rotating fit between the upper clamp arm and the lower clamp arm is realized, the upper clamp body is more smooth when being overturned relative to the lower clamp body, and the upper clamp body and the lower clamp body cannot; go up the alligator clip that arm lock 31 and lower arm lock 32 make up into and still be formed with a clamp groove 37 on pressing from both sides, the setting of clamp groove makes when carrying out the centre gripping to patient's health, and the edge of patient's wound can be arranged in and presss from both sides the inslot to avoid the damage to patient's wound edge, make patient's wound sew up more conveniently, sew up the effect better, the patient wound is healed more easily, thereby reduces the risk that the patient infects, and then makes the patient recover more easily.

Further, the connecting portion 34 is mounted on the lower clip arm 32, so as to facilitate electrical connection between the lower clip arm and the electric wire 1, and in this embodiment, the connecting portion and the lower clip body 321 are integrally formed; in other embodiments, the connecting portion may also be connected and fixed with the lower clamping arm by welding or other connection methods; at least part of the surface of one end of the upper clamp body 311, which is far away from the upper convex teeth 314, extends outwards to form a pressing part 317, and through the matching of the pressing part and the connecting part, an operator can apply force to the upper and lower clamping arms conveniently, so that the elastic force of the elastic part 33 is overcome, and the clamping and fixing effect of the crocodile clamp is realized; the connecting part 34 comprises a transition section 341, a fixing piece 342 and a connecting ring 343, one end of the transition section 341 is connected with the lower clamp body 321, the other end is connected with the connecting ring 343, the width of the transition section is gradually reduced from one side close to the lower clamp body to one side close to the connecting ring, the cross section of the transition section is gradually changed into a semi-circle shape from a rectangle with a flange, the transition from the lower clamp body to the connecting ring is ensured to be more gradual, the force application of an operator is more convenient, the reaction force acting on the operation of the operator is gentler, and the injury of the operator is avoided; the fixing plate 342 is formed by extending at least part of the surfaces of the two side edges of the transition section outwards and is divided into two pieces, namely a left piece and a right piece; when one end of the elastic piece 33 and one end of the electric wire 1 are placed in the transition section and are positioned between the two fixing pieces, the two fixing pieces are bent towards the transition section, the two fixing pieces are mutually overlapped and pressed together, so that one end of the elastic piece and one end of the electric wire are tightly pressed and fixed in the transition section and are fixed together by welding, meanwhile, the electric connection between the electric wire and the crocodile clip is realized, the electric signal can be transmitted into the electric wire through the crocodile clip and then transmitted to the detector and the pacemaker program-controlled instrument through the electric wire, and the purpose of real-time monitoring is realized; the connection ring 343 is formed by bending a metal sheet with a gap left between both ends of the metal sheet.

Preferably, the clamp cover 35 is arranged on the outer cover of the crocodile clamp, so that the roughness of the surface of the crocodile clamp is increased, force application of an operator is more convenient, the crocodile clamp is not easy to slip, the problem of operation risk increase caused by accidental injury of a patient is avoided, the safety is higher, the problem that the crocodile clamp falls off and is infected with bacteria due to slipping is avoided, the risk of postoperative infection is reduced, and the success rate of an operation is further improved; the clamp cover is made of a silica gel material, has certain elastic deformation capacity, can play an insulating role, and avoids the problem that current signals are interfered due to the fact that an operator contacts with metal, so that the accuracy of detected data is guaranteed, and the safe operation is guaranteed; the clip cover comprises a cover body 350, an upper cover part 351 and a lower cover part 352; the cover body cover is arranged on the outer side of the connection part of the upper clamping arm 31 and the lower clamping arm 32, and the upper rodent 313 and the lower rodent 323 extend out of the opening on the cover body, so that the cover body can not influence the occlusion of the upper rodent and the lower rodent; preferably, a strip-shaped opening 353 is formed in one side, close to the upper and lower engaging teeth, of the cover body, and the length of the strip-shaped opening is close to that of the clamping groove 37, so that the opening and closing between the upper clamping arm and the lower clamping arm are more convenient and labor-saving, and meanwhile, the clamping groove is not shielded by the cover body, and the clamping groove can better play a role; the upper cover part 351 is formed by extending at least part of the surface of the cover body outwards and is provided with a hollow structure, the upper cover part is covered on the outer side of the pressing part 317, force application by an operator is facilitated, and preferably, the end part of the pressing part 317 is provided with an arc-shaped structure, so that the upper cover part is prevented from being damaged, and the service life is prolonged; the side edge of the pressing part is provided with the groove 318, so that the elastic upper cover part can be embedded into the groove during pressing, the upper cover part and the pressing part are relatively fixed, slipping is avoided, pressing is more stable, and the use is safer; the lower cover part 352 is formed by extending at least part of the surface of the cover body close to the lower clamp body outwards, is in a tubular structure, is covered on the outer side of the connecting part 34, plays a role in protecting the electric connection point of the electric wire and the alligator clamp and prolongs the service life; a first convex edge 354 and a second convex edge 355 are arranged at the joint of the lower cover part 352 and the cover body 350, a third convex edge 356 is arranged at one end of the lower cover part, which is far away from the cover body, and the first convex edge is formed by extending at least part of the surface of the lower surface of the cover body outwards, so that when an operator opens and closes the alligator clip, force application is more convenient, the alligator clip is less prone to slipping, and the alligator clip is safer to use; the second is protruding along outwards extending by the at least partial surface of the cover body both sides and is formed, and the third is protruding along then outwards extending by the at least partial surface of lower cover body and is formed, is the loop configuration and sets up, through the setting on second protruding edge and third protruding edge for when needs will press from both sides the cover and take off, the application of force is more convenient.

Specifically, the electric wire 1 comprises a first lead 11, a second lead 12, a third lead 13, a line concentration joint 14, a line concentration pipe 15, a mark sleeve 16 and a line sleeve 17; the diameter of the first lead 11 is 1mm-2mm, preferably 1.5mm +/-0.05 mm; the first lead comprises a conductive core 111 and an insulating layer 112, the conductive core is made of copper or other conductive materials, the material adopted in the embodiment is 60/0.08TC (tin-plated copper wire), the insulating layer 112 is coated on the outer side of the conductive core, is arranged in a tubular structure and is made of PVC materials; the size and the structure of the second conducting wire 12 and the third conducting wire 13 are the same as those of the first conducting wire 11; the first lead, the second lead and the third lead are all sleeved with wire sleeves 17 which are made of silica gel materials or other materials meeting medical standards; when the conductive core is connected with the crocodile clip, the wire sleeve slides along the insulating layer and penetrates into the connecting ring 343, and at least part of the wire sleeve is exposed out of the connecting ring, so that a gap between the outer wall of the wire and the inner wall of the connecting ring is filled, the wire and the connecting ring are prevented from being repeatedly contacted, rubbed, damaged or even broken due to the twisting of the crocodile clip when the connecting wire is used, the stability of data transmission is ensured, and the operation is safer; simultaneously because the line cover is full of the clearance between with wire outer wall and the go-between inner wall for filling up, and the line cover is made by silica gel, the insulating layer is made by the PVC material, frictional force between the two is great, so when the wire receives external force and when being dragged by the direction of keeping away from the alligator clip, the line cover has played the effect of sharing the external force that the wire received, thereby make the fixed difficult quilt of being connected between wire and the alligator clip damage, guarantee both remain stable electric connection state throughout, and then improved data transmission's stability, make the data that detect more accurate, and then make the security and the success rate of operation higher.

Furthermore, the line concentration joint 14 is arranged at the outer sides of the first lead, the second lead and the third lead and plays a role in bundling three leads into one strand, so that the three leads, the alligator clips connected to the three leads and the lead joints are not easy to wind and knot, the use is more convenient, the problem of time waste caused by arranging the leads is avoided, the operation is delayed for seconds, and the success rate of the operation is further improved; the line concentration joint is made of 25P black PVC material, and meets the requirement of environmental protection RHOS; the wire collecting pipe 15 is made of a wear-resistant medical PVC material, is sleeved on the outside of the first wire, the second wire and the third wire after being bundled, is preferably directly injection-molded on the outside of the wires, and also plays a role in preventing the wires, the crocodile clip and the wire joint from knotting; the mark cover is established in the outside of line concentration pipe, conveniently does some signs or other suggestion characters on it.

Further, one end of the first lead 11 is electrically connected with the alligator clip 3, and the other end is electrically connected with the lead connector 2; both ends of the second lead 12 and the third lead 13 are electrically connected with the crocodile clip 3; the lead connector 2 on the first lead 11 is used for connecting with an electrode lead of a pacemaker, and the crocodile clip on the other end of the first lead is used for connecting with a monitor; the crocodile clip 3 on one end of the second lead 12 is used for clamping the skin of the patient and is used as an anode, and the crocodile clip on the other end is connected with the pacing program controller; in the monitoring process, according to different conditions, the crocodile clip at one end of the third lead can be selectively clamped on the anode ring of the electrode end, and the crocodile clip at the other end is connected with the detector and the pacing program controller, so that more implantation parameters can be obtained.

In order to facilitate distinguishing, the insulating layers of the three leads, the clamping cover on the crocodile clip and the outer skin on the lead joint are produced into different colors during production, wherein the first lead, the lead joint on the first lead and the crocodile clip are black; the second lead is white, and the crocodile clip on the second lead is yellow; the third lead and the alligator clip thereon are red; in other embodiments, one of the alligator clips of the second or third conductor may be replaced with a conductor connector 2, thereby serving as a backup.

Specifically, the wire connector 2 comprises a sheath 21, a shell 22, a rotary head 23, a connector 24 and a middle sleeve 25; the shell 22 is made of metal material, has conductivity, is provided in a hollow cylindrical structure, and has a socket 221 at one end, an accommodating cavity 222 formed in the middle, and a connector 223 formed at the other end; the swivel 23 is made of a conductive metal material, in this embodiment, a copper material is adopted, the swivel is formed in a cylindrical structure, the swivel is installed in the accommodating cavity 222, the swivel can rotate in the accommodating cavity, and the outer surface of the swivel is always in contact with the cavity wall of the accommodating cavity, so that the swivel is in rotating electrical connection and matching with the shell; one end of the rotor close to the socket 221 is provided with a rotation connecting part 231, which is a slot in the embodiment; preferably, the inner diameter of the rotation connection portion 231 is the same as the inner diameter of the socket 221, so that the electrode terminal of the electrode lead connected with the pacemaker can pass through the socket 221 to be connected with the rotation connection portion 231, and meanwhile, the edge of the socket can play a role in assisting in fixing the electrode terminal, so that the electrode terminal is prevented from deflecting, and the installation is more stable.

Further, a spring plate 26 is installed in the rotation connection portion 231, and the spring plate is made of a metal material and has certain elasticity, in the embodiment, brass is used, and in other embodiments, other metal materials with conductivity and elasticity can be used; the elastic sheet comprises a first fixing part 261 and a second fixing part 262, the first fixing part is arranged in an annular structure, the outer diameter of the first fixing part is slightly larger than the inner diameter of the rotary connecting part 231, so that after the elastic sheet is installed in the rotary connecting part, the first fixing part and the rotary connecting part can form interference fit, the installation is more stable, and after the electrode end of the electrode lead is inserted, the elastic sheet and the rotary head can be driven to rotate together when the electrode lead rotates, but the elastic sheet is difficult to rotate relative to the rotary head, so that the electric signal transmission is more stable; the second fixing part is formed by extending at least part of the surface of the side surface of the first fixing part outwards and is provided with an arc-shaped sheet structure, the diameter of the second fixing part is gradually reduced from one end close to the first fixing part to one end far away from the first fixing part, and the plurality of second fixing parts are distributed in a claw-shaped structure; when the elastic sheet is installed, the second fixing part faces the rotating connecting part, and then the elastic sheet is placed into the rotating connecting part, so that after the electrode end of the electrode wire is inserted into the rotating connecting part, the second fixing part can be tightly attached to the surface of the electrode end, the electrode end can be clamped and fixed in the rotating connecting part under the action of the elastic force of the second fixing part, the connection is more stable and is not easy to fall off, and meanwhile, the electric connection state can be always kept between the electrode end and the rotating head, so that the transmission of electric signals is more stable and accurate, and reliable data support is provided for an operator; the electrode end is not easy to rotate relative to the elastic sheet, so that the electrode end is prevented from being abraded, the electrode end is ensured to be stably connected with the pacemaker when being connected, and the pacemaker and the electrode lead can stably play a role in assisting a patient to perform cardiac pacing all the time; when the rotary head is accidentally clamped and cannot rotate relative to the shell, the electrode end can rotate relative to the elastic sheet due to the elasticity of the elastic sheet, so that the rotary head or the electrode lead is prevented from being damaged; after the elastic sheet 26 is installed in the rotary connecting portion 231, the rotary connecting portion is subjected to closing-up treatment, so that a closing-up edge 233 is formed at the opening edge of the insertion opening, the elastic sheet is fixed in the rotary connecting portion, and the elastic sheet is prevented from being separated along with the extraction of the electrode end.

Preferably, the elastic sheet 26 is further provided with a third fixing portion, and the third fixing portion is a convex portion formed by extending at least part of the surface of the inner side of the elastic sheet outwards, so that the contact between the elastic sheet and the electrode terminal is tighter, and the fixing and anti-dropping effect on the electrode terminal is better.

Further, the connector 24 includes a connecting column 241, a connecting groove 242 and a connecting protrusion 243, the connecting column 241 is made of a metal material with good electrical conductivity, an external thread is formed on the outer surface of the connecting column 241, and a corresponding internal thread is formed in the interface 223, so that the connector can be installed in the interface, and the threaded connection between the connector and the housing is realized; the connecting groove 242 is formed in one end of the connecting column and is in a straight line structure, so that the connecting column can be conveniently screwed into the interface, and the electric connection between the connector and the electric wire 1 is also facilitated; the connecting convex part 243 is arranged at the other end of the connecting column and is formed by extending at least part of the surface of the end part of the connecting column outwards; the swivel 23 is close to the one end of interface 223 and has then seted up the turn trough 232, and when the swivel was installed in the casing and the connector and casing spiro union back, connect the convex part 243 and just in time imbed the turn trough 232, and both agree with each other, connect the convex part can be in the turn trough internal rotation, and the surface of connecting the convex part is laminated with the cell wall of turn trough mutually all the time to realize the rotation electricity between connector and the swivel and link up the cooperation.

Preferably, the rotary groove is formed in a flaring structure, so that part of the outer surface of the connecting convex part can be contacted with the groove wall of the rotary groove all the time, the rotary head is fixed in the accommodating cavity 222, a gap is reserved between the connecting convex part and the rotary groove, the rotary head is prevented from moving along the axial direction of the shell, the connection between the rotary head and the electrode end of the electrode lead is more stable, the fixing force of the connecting head on the rotary head can be conveniently adjusted, and the rotary head can be stably installed without influencing the rotation of the rotary head; and connect the convex part and change the area of contact between the head comparatively invariable all the time for the transmission of data is more stable, thereby makes the change of operation center electrocardio and electrode impedance can real-time accurate transport to detector and programme-controlled appearance on, and then makes the art person know more clearly accurate to each item data parameter in the operation, makes what art person can be better control the operation situation, thereby reduces the operation risk, improves the success rate of operation.

Furthermore, a middle sleeve 25 is sleeved on the outer side of the first lead 11 and is positioned on one side of the first lead, which is connected with the lead connector 2, to replace the wire sleeve 17, wherein the middle sleeve 25 is made of a plastic material, has certain elasticity and is higher in hardness compared with rubber; after the first wire is electrically connected and fixed with the connector 24, the middle sleeve is pushed into the flaring section 224 formed on the shell 22 along the first wire, so that the joint of the first wire and the connector is not easy to move along with the movement of the wire connector, the stability of connection between the first wire and the connector is ensured, and the transmission of electric signals is more stable.

Further, the crust 21 is made by medical silica gel material or other insulating materials, the crust includes first section body 211, second section body 212 and third section body 213, first section body 211 cladding is in the outside of casing 22, second section body 212 cladding is in the outside of well cover 25, the third section body then is used for connecting first section body and second section body, thereby make well cover by stable the installing in the flaring section, and well cover can not take place to rotate for the casing, thereby make the connector can be fixed on predetermineeing the position, can not appear not hard up problem along with the rotation of turning round, the stability of being connected between turning round and the connector has further been guaranteed.

Claims (8)

1. The utility model provides a connecting wire is used in test is implanted to pacemaker which characterized in that: the electrode lead comprises an electric wire (1) and a lead joint (2) connected with the electric wire (1), wherein an electrode lead can be connected with the lead joint (2); when the electrode lead rotates, at least part of the lead joint (2) can rotate along with the rotation of the electrode lead;

the lead joint (2) comprises a shell (22), a rotary head (23) capable of rotating back and forth and a rotary connecting part (231) used for being connected with the electrode lead, wherein the rotary connecting part (231) is arranged on the rotary head (23);

the wire joint (2) further comprises a connector (24) used for connecting the rotary head (23) and the electric wire (1), and the connector (24) can rotate relative to the rotary head (23).

2. The connection wire for pacemaker implantation test according to claim 1, wherein: the lead joint (2) also comprises an elastic sheet (26) matched with the electrode lead.

3. The connection wire for pacemaker implantation test according to claim 2, wherein: the elastic sheet (26) comprises a first fixing part (261) and a second fixing part (262) matched with the electrode end of the electrode lead in a falling-off prevention mode.

4. The connection wire for pacemaker implantation test according to claim 3, wherein: the diameter of the second fixing portion (262) is gradually reduced from a notch close to the rotation connecting portion (231) to a notch far from the rotation connecting portion (231).

5. The connection wire for pacemaker implantation test according to claim 3, wherein: the first fixing portion (261) is arranged in an annular structure, and the outer diameter of the first fixing portion is larger than the diameter of the rotating connecting portion (231).

6. The connection wire for pacemaker implantation test according to claim 1, wherein: the connector (24) comprises a connecting convex part (243); the rotary head (23) is provided with a rotary groove (232) matched with the connecting convex part (243).

7. The connection wire for pacemaker implantation test according to claim 6, wherein: the rotary groove (232) is arranged in a flaring structure.

8. The connection wire for pacemaker implantation test according to claim 1, wherein: the connector (24) further comprises a connecting column (241) connected with the connecting convex part (243) and a connecting groove (242) arranged on the connecting column (241), and the shell (22) is provided with an interface (223) matched with the connecting column (241).

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