CN217773007U

CN217773007U - Multifunctional temporary pacing electrode catheter

Info

Publication number: CN217773007U
Application number: CN202221231689.5U
Authority: CN
Inventors: 杨洋; 余健
Original assignee: Shenzhen Huitai Medical Equipment Co ltd
Current assignee: Shenzhen Huitai Medical Equipment Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-11-11
Anticipated expiration: 2032-05-20

Abstract

The utility model discloses a multi-functional interim pacing electrode catheter, which comprises a catheter, the pipe has the inner chamber, the end electrode has set gradually on the distal end of pipe, the sacculus, ring electrode, the end electrode sets up on the distal end of pipe, ring electrode sets up on the stack of pipe distal end, the sacculus sets up between end electrode and ring electrode, the near-end of pipe is provided with the connection handle, tail wire and Y shape connecting valve, the distal end of Y shape connecting valve and the near-end intercommunication of the inner chamber of pipe are fixed on connecting the handle, end electrode wire in end electrode and the ring electrode, ring electrode wire extends to the connection handle and is connected with the tail wire electricity through the body of pipe, sacculus and inner chamber intercommunication, the distal end of tail wire is fixed on connecting the handle. Compared with the prior art, the utility model discloses select corresponding interim pacing mode as required, satisfy different clinical demands to improve operation efficiency, improve the commonality of interim pacing electrode catheter.

Description

Multifunctional temporary pacing electrode catheter

Technical Field

The utility model relates to a medical surgical instrument, in particular to a multifunctional temporary pacing electrode catheter.

Background

In recent years, the incidence rate and mortality rate of heart diseases are increasing, and a pacing catheter is needed to perform temporary pacing on the heart in the treatment of various cardiovascular diseases. The temporary pacing catheters currently on the market are basically divided into common temporary pacing electrode catheters and floating temporary pacing electrode catheters. The floating temporary pacing electrode catheter floats from a peripheral vein to a right atrium under the floating force of an expansion balloon at the distal end of the catheter under the guidance of X-ray fluoroscopy (generally without using X-ray fluoroscopy), crosses a tricuspid valve and is pushed forwards to the right ventricular apex; the ordinary temporary pacing electrode catheter is used for pushing a catheter to the right ventricular apex under the guidance of X-rays by an operator. At present, the two pacing electrode placing modes have single function, and an operator needs to select one appropriate mode according to the conditions of patient indications, use scenes and the like, so that diversified clinical requirements cannot be met simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multi-functional interim electrode catheter of pacing, the technical problem that solve can select corresponding interim pacing mode as required in the art to improve operation efficiency, satisfy diversified clinical demand.

In order to solve the above problem, the utility model discloses a following technical scheme realizes: the utility model provides a multi-functional interim pacing electrode catheter, which comprises a catheter, the pipe has the inner chamber, end electrode, the sacculus, ring electrode have set gradually on the distal end of pipe, end electrode sets up on the distal end of pipe, ring electrode sets up on the pipe shaft of pipe distal end, the sacculus sets up between end electrode and ring electrode, the near-end of pipe is provided with the connection handle, tail-wire and Y shape connecting valve, the distal end of Y shape connecting valve communicates with the near-end of the inner chamber of pipe and fixes on connecting the handle, end electrode wire among end electrode and the ring electrode, ring electrode wire extends to the connection handle and is connected with the tail-wire electricity through the body of pipe, sacculus and inner chamber intercommunication, the distal end of tail-wire is fixed on connecting the handle.

Furthermore, the end electrode is provided with a safety wire, and the safety wire extends to the connecting handle through the pipe body of the catheter and is fixedly connected with the connecting handle.

Further, the catheter includes an outer tube and an inner tube, the outer tube being sleeved outside the inner tube, the inner lumen being formed in the lumen of the inner tube.

Furthermore, a gap is arranged between the inner tube and the outer tube, and leads of the end electrode and the ring electrode penetrate into the gap through the wire outlet hole in the inner cavity and extend to the position of the connecting handle through the gap.

Furthermore, a circle of breaking part is arranged on the part of the tube body of the outer tube, which is positioned between the end electrode and the ring electrode, the balloon is arranged in the breaking part, the far end and the near end of the balloon are hermetically connected with the far end and the near end of the breaking part, and at least one air outlet hole communicated with the balloon cavity of the balloon is arranged on the inner tube.

Further, the balloon is tubular in shape when not inflated, and the outer diameter of the balloon is the same as that of the outer tube.

Furthermore, a first luer connector and a second luer connector are respectively arranged on two branches of the proximal end of the Y-shaped connecting valve, and one branch of the distal end of the Y-shaped connecting valve is fixed with the connecting handle and is communicated with the inner cavity of the catheter.

Further, still include the steel wire.

Further, the diameter of the saccule is 1.3-2.4 mm when the saccule is not inflated, and the length of the saccule is 4-10 mm; the diameter of the balloon after filling is 5-15 mm.

Further, the diameter of the conduit is 1.3-2.4 mm, and the length is 850-1200 mm.

Compared with the prior art, the utility model has the advantages that the distal end of the catheter is provided with the end electrode and the ring electrode, the inflatable balloon is arranged between the end electrode and the ring electrode at the distal end of the catheter, the end electrode and the ring electrode are used for electrocardiogram detection and bipolar pacing, and the inflatable balloon is used for guiding the placement of blood flow of the catheter; when the saccule is inflated and expanded, the catheter can float to the right atrium from the peripheral vein by the floating force of the expanded saccule and cross the tricuspid valve, and then the saccule is shrunk and the catheter is pushed forwards to the right ventricular apex; when a patient is in the condition of being not suitable for being inflated with the saccule to carry out blood flow guiding placement, such as tricuspid valve backflow and the like, the catheter is inserted into the catheter through the steel wire, so that the catheter has pushing performance, and is pushed and placed under the guidance of X-rays, so that the catheter reaches the apex of the right ventricle, and the purpose of operation is achieved; the utility model discloses select corresponding interim pacing mode as required, satisfy different clinical demands to improve operation efficiency, improve the commonality of interim pacing electrode catheter.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the whole structure of the syringe after being inflated.

Fig. 3 is an axial sectional view of the present invention.

Figure 4 is the utility model Y-shaped connecting valve schematic diagram.

Fig. 5 is a schematic diagram of the structure of the terminal electrode of the present invention.

Fig. 6 is a schematic view of the structure of the syringe of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1, the utility model discloses a multi-functional interim pacing electrode catheter, include: the electrocardiogram monitoring catheter comprises a catheter 4 with an inner cavity 43, wherein a tip electrode 1, a balloon 2 and a ring electrode 3 are sequentially arranged at the distal end of the catheter 4, the tip electrode 1 is arranged on the distal end of the catheter 4 to seal the distal end section of the catheter 4, the ring electrode 3 is sleeved on the body of the distal end of the catheter 4, the balloon 2 is arranged on the part of the body of the catheter 4 between the tip electrode 1 and the ring electrode 3, the proximal end of the catheter 4 is provided with a connecting handle 5, a tail wire 6 and a Y-shaped connecting valve 7, the distal end of the Y-shaped connecting valve 7 is communicated with the proximal end of the inner cavity 43 of the catheter 4 and fixed on the connecting handle 5, a tip electrode lead 11 and a ring electrode lead 14 in the tip electrode 1 and the ring electrode 3 are electrically connected with the tail wire 6 through the catheter 4 to realize electrocardiogram monitoring and bipolar pacing through the tail wire 6, the balloon 2 is communicated with the inner cavity 43 to enable the balloon 2 to be inflated and expanded through the inner cavity 43 (as shown in fig. 2), the distal end of the tail wire 6 is fixed on the connecting handle 5, and the Y-shaped connecting valve 7 is used for introducing steel wires or inflating.

As shown in fig. 5, the terminal electrode 1 is cylindrical, the distal end of the terminal electrode 1 can be set to be hemispherical, a circle of boss 13 is arranged at the proximal end of the terminal electrode 1, the terminal electrode 1 adopts a thermal fusion process to inlay the boss 13 in the inner cavity 43 of the catheter, the boss 13 is arranged to improve the inlaid firmness degree, a safety wire 12 is further arranged on the terminal electrode 1, the safety wire 12 and the terminal electrode wire 11 are connected with the proximal end of the terminal electrode 1, the terminal electrode wire 11 is conducted, the safety wire 12 is used for preventing the terminal electrode from falling off and falling into the heart, and plays a role in protection, the safety wire 12 can be fixed with the terminal electrode 1 in a pasting manner, the terminal electrode wire 11 is fixed with the terminal electrode 1 in a welding manner, the safety wire 12 and the terminal electrode wire 11 extend into the connection handle 5 through the inner cavity 43, the distal end of the terminal electrode wire 11 is electrically connected with the tail wire 6, and the distal end of the safety wire 12 is fixedly connected with the connection handle 5.

In the utility model, the diameter of the terminal electrode 1 is 1.3-2.4 mm, and the length is 1-4 mm. The terminal electrode 1 may be made of a conductive material such as platinum-iridium alloy or gold.

As shown in fig. 1 and 3, the ring electrode 3 is disposed at the proximal end of the balloon 2, the ring electrode lead 14 is welded to the inner wall of the ring electrode 3, the ring electrode lead 14 extends into the connection handle 5 through the shaft of the catheter 4, and the proximal end of the ring electrode lead 14 is electrically connected to the tail wire 6.

In the utility model, the inner diameter of the ring electrode 3 is 1.4-2.5 mm, the outer diameter is 1.45-2.55 mm, and the width is 1-4 mm. The ring electrode 3 may be made of a conductive material such as platinum-iridium alloy or gold.

As shown in fig. 3, the catheter 4 can adopt a double-layer structure design, and comprises an outer tube 41 and an inner tube 42, wherein the outer tube 41 is sleeved outside the inner tube 42, an inner cavity 43 is formed in a tube cavity of the inner tube 42, the diameter of the catheter 4 is 1.3-2.4 mm, and the length of the catheter 4 is 850-1200 mm; the catheter 4 can be made of materials such as block polyether amide resin PEBAX, polyurethane, block polyamide or nylon.

As shown in fig. 3, the balloon 2 is disposed on the outer tube 41, the proximal end and the distal end of the balloon 2 are respectively connected to the outer tube 41 in a sealing manner, and the catheter 4 is provided with an air outlet 421 communicated with the lumen of the balloon 2, so as to inflate the balloon 2 through the inner lumen 43.

As shown in fig. 3, a gap 44 is further provided between the inner tube 42 and the outer tube 41, so that the terminal electrode lead wire 12 and the safety wire 11 penetrate into the gap 44 through the wire outlet 422 on the inner cavity 43 and extend to the connection handle 5 through the gap 44, and the ring electrode lead wire 14 penetrates through the outer tube 41 and then enters into the gap 44 and extends to the connection handle 5 through the gap 44; of course, the gap 44 can also be realized by arranging a corresponding channel in the pipe body of the conduit 4 with a single-layer structure, and the arrangement of the gap 44 can ensure that the steel wire 8 can smoothly enter the inner cavity 43 when the steel wire 8 is introduced.

As shown in fig. 1, the utility model also comprises a steel wire 8, the steel wire 8 can be used to penetrate into the inner cavity 43 through the Y-shaped connecting valve 7, so that the catheter 4 has a pushing function, and the pushing of the catheter 4 is realized, so that the utility model can be used as a common temporary pacing electrode catheter; the distal end of steel wire 8 has the plastic section of deformability to adjust the distal end of steel wire 8 to corresponding crookedness, can hold wire 11, safety wire 12 and steel wire 8 simultaneously for guaranteeing the distal end of inner chamber 43, the diameter diminishes gradually in the distal end direction of steel wire 8 towards the near-end of steel wire 8 from the steel wire 8 distal end setting.

As shown in fig. 3, the balloon 2 is tubular in shape in its normal (uninflated inflation) configuration.

As a preferred embodiment of the present invention, as shown in fig. 3, a circle of disconnection portion 45 is provided on the part of the tube body between the end electrode 1 and the ring electrode 3 located in the outer tube 41, so as to expose the inner tube 42, the balloon 2 is disposed in this disconnection portion 45, and the sleeve is disposed on the exposed portion of the inner tube 42, the distal end and the proximal end of the balloon 2 and the distal end and the proximal end of the disconnection portion 45 pass through glue sealing connection, the balloon 2 is in a normal state, the outer diameter of the balloon 2 is the same as the outer diameter of the outer tube 41, on the premise of ensuring smoother pushing, it can be ensured that the matching use with other apparatuses (such as a hemostatic valve, a delivery sheath, etc.) is not affected.

The air outlet hole 421 is arranged on the inner tube 42, and the air outlet hole 421 is respectively communicated with the inner cavity 43 and the cavity of the balloon 2.

As shown in fig. 3, a gap 44 may be provided between the outer tube 41 and the inner tube 42 of the catheter 4 at the proximal end of the balloon 2, and the outer tube 41 and the inner tube 42 of the catheter 4 at the distal end of the balloon 2 are fitted together.

In the utility model, the diameter of the balloon 2 is 1.3-2.4 mm and the length is 4-10 mm. The saccule 2 can be made of natural latex, silica gel, nylon and other materials, the diameter of the saccule after being inflated is 5-15 mm, and the volume of the inflated gas is 1-3 ml.

As shown in fig. 4, a first luer connector 71 and a second luer connector 72 are respectively arranged on two branches of the proximal end of the Y-shaped connecting valve 7, and one branch of the distal end of the Y-shaped connecting valve 7 is fixed with the connecting handle 5 and is communicated with the inner cavity 43 of the catheter 4.

When the catheter is used as a floating temporary pacing electrode catheter, a syringe 9 is connected with a second luer 72 to fill a certain volume of gas into the inner cavity 43, and meanwhile, the first luer 71 is closed, so that the gas enters the balloon 2 through the inner cavity 43 and the gas outlet 421 to fill the balloon.

As shown in FIG. 6, the syringe 9 may be an existing medical syringe.

As shown in fig. 1 and 4, when the catheter is used as a common temporary pacing electrode catheter, a steel wire 8 is used, the steel wire 8 enters the inner cavity 43 through a first luer connector 71 and is inserted into the distal end of the catheter 4, so that the tube body of the catheter 4 is hardened, and the catheter has pushing performance; because the head end of the steel wire 8 has the shaping function, the electrode is more favorably attached to the endocardium.

As shown in fig. 1, in the present invention, two tail wires 6 are provided, and the two tail wires 6 are electrically connected to the end electrode wire 11 and the ring electrode wire 14, respectively. )

The utility model discloses a use method: the catheter is connected with a second luer connector 72 through a syringe 9 to inflate the balloon 2, the first luer connector 71 is closed while the balloon 2 is inflated, and the second luer connector 72 is closed after the balloon 2 is inflated. The floating force of the inflated balloon 2 floats from the peripheral vein to the right atrium and crosses the tricuspid valve, after which the second luer 72 is opened to exhaust the gas, the balloon 2 deflates and the catheter is pushed forward to the right ventricular apex, setting the appropriate pacing parameters to pace the patient.

When the patient is not suitable for filling the balloon and performing blood flow guiding placement, such as a patient with tricuspid valve regurgitation and the like, the matched steel wire 8 can enter the inner cavity 43 of the catheter 4 through the first luer connector 71 and be pushed to the distal end of the catheter 4, so that the catheter 4 has certain pushing performance, and the catheter is pushed to the right ventricular apex under the guidance of X-rays. If necessary, the physician may also manually shape the malleable section of the distal end of the wire 8 to provide a degree of curvature prior to insertion of the wire 8, which makes it easier to bring the catheter to a desired location.

Claims

1. A multifunctional temporary pacing electrode catheter comprising a catheter (4), characterized in that: the catheter (4) is provided with an inner cavity (43), the end electrode (1), the balloon (2) and the ring electrode (3) are sequentially arranged at the far end of the catheter (4), the end electrode (1) is arranged on the far end of the catheter (4), the ring electrode (3) is arranged on the tube body at the far end of the catheter (4), the balloon (2) is arranged between the end electrode (1) and the ring electrode (3), the near end of the catheter (4) is provided with a connecting handle (5), a tail wire (6) and a Y-shaped connecting valve (7), the far end of the Y-shaped connecting valve (7) is communicated with the near end of the inner cavity (43) of the catheter (4) and is fixed on the connecting handle (5), the end electrode (1) and an end electrode lead (11) in the ring electrode (3) and a ring electrode lead (14) extend to the connecting handle (5) through the tube body of the catheter (4) and are electrically connected with the tail wire (6), the balloon (2) is communicated with the inner cavity (43), and the far end of the tail wire (6) is fixed on the connecting handle (5).

2. The multifunctional temporary pacing electrode catheter of claim 1, wherein: the safety wire (12) is arranged on the end electrode (1), and the safety wire (12) extends to the connecting handle (5) through the pipe body of the catheter (4) and is fixedly connected with the connecting handle (5).

3. The multifunctional temporary pacing electrode catheter of claim 2, wherein: the catheter (4) comprises an outer tube (41) and an inner tube (42), wherein the outer tube (41) is sleeved outside the inner tube (42), and an inner cavity (43) is formed in the tube cavity of the inner tube (42).

4. The multi-functional temporary pacing electrode catheter of claim 3, characterized in that: a gap (44) is arranged between the inner tube (42) and the outer tube (41), and wires of the terminal electrode (1) and the ring electrode (3) penetrate into the gap (44) through a wire outlet hole (422) in the inner cavity (43) and extend to the position of the connecting handle (5) through the gap (44).

5. The multifunctional temporary pacing electrode catheter of claim 4, wherein: the outer tube (41) is provided with a circle of disconnection portion (45) on the tube body between the end electrode (1) and the ring electrode (3), the balloon (2) is arranged in the disconnection portion (45), the far end and the near end of the balloon (2) are hermetically connected with the far end and the near end of the disconnection portion (45), and the inner tube (42) is provided with at least one air outlet hole (421) communicated with a balloon cavity of the balloon (2).

6. The multi-functional temporary pacing electrode catheter of claim 5, wherein: when the saccule (2) is not inflated, the external shape is tubular, and the external diameter of the saccule (2) is the same as that of the outer tube (41).

7. The multifunctional temporary pacing electrode catheter of claim 6, wherein: a first luer connector (71) and a second luer connector (72) are respectively arranged on two branches at the near end of the Y-shaped connecting valve (7), and one branch at the far end of the Y-shaped connecting valve (7) is fixed with the connecting handle (5) and is communicated with the inner cavity (43) of the catheter (4).

8. The multifunctional temporary pacing electrode catheter according to any one of claims 1-7, characterized in that: also comprises a steel wire (8).

9. The multifunctional temporary pacing electrode catheter according to any one of claims 4-7, characterized in that: the diameter of the saccule (2) is 1.3-2.4 mm when the saccule is not inflated, and the length is 4-10 mm; the diameter of the balloon after filling is 5-15 mm.

10. The multifunctional temporary pacing electrode catheter according to any one of claims 1-7, characterized in that: the diameter of the conduit (4) is 1.3-2.4 mm, and the length is 850-1200 mm.