Minimally invasive implantation device for lead of epicardial temporary pacemaker

Abstract

The invention provides an epicardial temporary pacemaker wire minimally invasive implantation device, and relates to the field of medical instruments, the epicardial temporary pacemaker wire minimally invasive implantation device comprises an anti-falling handle, an auxiliary catheter is fixedly connected to the outer side of the upper end of the anti-falling handle; the positioning auxiliary ring is arranged on the outer side of the far end of the auxiliary catheter; the auxiliary air bag is arranged on the upper side of the inner end of the anti-falling handle; the positioning auxiliary frame is slidably arranged at the far end of the inner side of the auxiliary catheter. The implantation auxiliary mechanism is arranged among the auxiliary air bag, the driving bracket and the positioning auxiliary frame; and the clamping auxiliary mechanism is arranged between the positioning auxiliary frame and the positioning auxiliary ring. The pacemaker wire implanting device has the advantages that the pacemaker wire is greatly prevented from slipping off from the auxiliary catheter, the operation difficulty of medical staff during minimally invasive implantation of a temporary pacemaker wire is reduced, the use effect of the implanting device in the actual application process is further improved, and the problem that the medical staff cannot carry out minimally invasive implantation on the pacemaker wire in the implanting operation process is solved. The phenomenon that the lead slides off from the lead auxiliary tube is easily caused, and the use effect of the implanted auxiliary catheter in the actual application process is influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a minimally invasive implantation device for a temporary epicardial pacemaker lead. Background Art

[0002] In the process of implanting the pacemaker lead into the epicardial area of ​​the patient through minimally invasive technology, anatomical landmarks are often used. Through a small incision beside the sternum, the pacemaker lead is implanted into the connective tissue between the ribs and pericardium with the help of an auxiliary catheter, and the distal end of the lead is positioned. The positioning needle at the proximal end of the lead is then inserted into the temporary pacemaker, and the distal electrode of the lead is used to detect and regulate the electrical activity of the heart.

[0003] However, when using an auxiliary catheter to perform minimally invasive implantation of a temporary pacemaker lead, in order to avoid unnecessary damage to the patient caused by the proximal positioning needle of the lead during the implantation process, the lead is usually inserted into the inner end of the auxiliary catheter before being implanted. Since the lead and the auxiliary catheter usually have a certain length, and the auxiliary catheter is usually a tubular structure with a closed outer end, it is inconvenient to insert the rubber lead into the inner side of the auxiliary catheter. At the same time, during the implantation of the pacemaker lead, since the diameter of the auxiliary catheter is larger than the diameter of the pacemaker lead, and due to the influence of the gravity force of the distal positioning needle of the lead itself, during the implantation operation, the lead is very likely to slip off the lead auxiliary tube, affecting the use effect of the implanted auxiliary catheter in actual application, and increasing the difficulty of operation for medical staff during minimally invasive implantation of temporary pacemaker leads. Summary of the invention

[0004] In view of this, the present invention provides a minimally invasive implantation device for a temporary epicardial pacemaker wire, which realizes the rapid insertion of the pacemaker wire and the auxiliary catheter, improves the convenience of operation when assembling and inserting the auxiliary catheter and the pacemaker wire, and also realizes automatic positioning assistance for the pacemaker wire inside the auxiliary catheter, greatly avoiding the phenomenon of the pacemaker wire slipping in the auxiliary catheter, reducing the operational difficulty of medical staff in minimally invasive implantation of the temporary pacemaker wire, and further improving the use effect of the implantation device in actual application.

[0005] The present invention provides a device for minimally invasive implantation of a temporary epicardial pacemaker lead, which specifically includes: an anti-slip handle, an auxiliary catheter, a positioning auxiliary ring, a driving bracket, an auxiliary airbag, a positioning auxiliary frame, an implantation auxiliary mechanism, a clamping auxiliary mechanism and a pacemaker lead, wherein the auxiliary catheter is fixedly connected to the outer side of the upper end of the anti-slip handle; a guide needle slot is provided at the upper end of the auxiliary catheter; a positioning slot is provided at the proximal end of the guide needle slot; the positioning auxiliary ring is provided at the outer side of the distal end of the auxiliary catheter; an exhaust pipe is fixedly connected to the rear end of the auxiliary airbag, an air inlet is provided at the front end of the auxiliary airbag, an air inlet check valve is provided on the inner side of the air inlet, and an exhaust check valve is provided on the inner side of the exhaust pipe; the exhaust pipe The outer end of the catheter is a conical tubular structure; the positioning auxiliary frame is slidably arranged at the distal end of the inner side of the auxiliary catheter, and an annular through hole is opened at the inner end of the positioning auxiliary frame; the implantation auxiliary mechanism is arranged between the auxiliary airbag, the driving bracket and the positioning auxiliary frame; the implantation auxiliary mechanism includes: a driving support shaft, a transmission support shaft and a positioning connection shaft; the clamping auxiliary mechanism is arranged between the positioning auxiliary frame and the positioning auxiliary ring, and the clamping auxiliary mechanism includes: a clamping ring, there are two clamping rings, and the two clamping rings are respectively slidably arranged on the upper and lower sides of the outer end of the positioning auxiliary frame, and the clamping ring is a semi-arc block structure; the pacemaker wire is inserted into the inner end of the auxiliary catheter; the positioning needle at the distal end of the pacemaker wire is a U-shaped needle structure.

[0006] Furthermore, a positioning ring is fixedly connected to the distal end of the auxiliary catheter, and a threaded connection groove is arranged on the outer side of the positioning ring; An auxiliary installation groove with threads is provided at the inner end surface of the auxiliary positioning ring and the alignment position with the positioning ring; The outer end of the exhaust pipe is fixedly connected with a positioning support ring, and the outer end of the positioning support ring is fixedly connected to the inner wall of the auxiliary pipe; the upper end of the positioning support ring is provided with a U-shaped groove.

[0007] Furthermore, there are two driving support shafts, which are coaxially fixedly connected to the left and right sides of the upper end of the driving bracket, and the driving support shafts are rotatably connected to the anti-drop handle; the longitudinal section of the driving support shaft is a convex structure; The transmission support shaft is vertically rotatably arranged on the outside of the driving support shaft at the right end; The positioning connection shaft is vertically rotatably arranged on the outer side of the transmission support shaft.

[0008] Furthermore, the inner end face of the right end driving support shaft is coaxially fixedly connected with a driving bevel gear; the outer end of the transmission support shaft is coaxially fixedly connected with a driven bevel gear; the driven bevel gear and the driving bevel gear are meshed with each other, and the diameter of the driving bevel gear is larger than that of the driven bevel gear.

[0009] Furthermore, a bevel gear transmission assembly is provided between the transmission support shaft and the positioning connection shaft; An elastic reset component is fixedly connected between the driving support shaft and the anti-drop handle.

[0010] Furthermore, the implantation auxiliary mechanism further comprises: a pressing bracket; the pressing bracket is slidably arranged on the outside of the auxiliary airbag; the left and right sides of the bottom end surface of the pressing bracket are vertically fixedly connected with a transmission rack; The left and right sides of the outer end of the positioning connecting shaft are coaxially fixedly connected with transmission gears; the transmission gears and the transmission racks on the same left and right sides are meshed with each other, and the transmission racks and the transmission gears together constitute a gear rack transmission mechanism.

[0011] Furthermore, a resistance-increasing convex block is fixedly connected to a circumferential array at the outer end of the positioning auxiliary frame; A resistance increasing groove is provided on the inner side of the auxiliary conduit at a position aligned with the resistance increasing protrusion.

[0012] Furthermore, the left and right sides of the outer end of the positioning auxiliary frame are fixedly connected with a positioning assisting frame; the two sides of the outer end of the positioning assisting frame are a slope-shaped structure inclined from the inner side of the distal end to the outer side of the proximal end; A positioning auxiliary piece is coaxially fixedly connected to the inner side of the positioning auxiliary ring; the inner end of the positioning auxiliary piece is an annular slope structure inclined from the inner side of the distal end to the outer side of the proximal end.

[0013] Furthermore, the inner end surface of the clamping ring is fixedly connected with a resistance-increasing frame; the resistance-increasing frame is elastically connected to the positioning auxiliary frame by using an extrusion spring.

[0014] Furthermore, the outer end face of the clamping ring is fixedly connected with a force-bearing inclined block; a boosting inclined block is arranged at the far end of the force-bearing inclined block, and the boosting inclined block is fixedly connected to the auxiliary catheter by a connecting column; the contacting surfaces of the force-bearing inclined block and the boosting inclined block on the same side are both inclined block structures. Beneficial Effects

[0015] When in use, the present invention realizes the rapid insertion of the pacemaker wire and the auxiliary catheter, improves the convenience of operation when assembling and inserting the auxiliary catheter and the pacemaker wire, and also realizes automatic positioning assistance of the pacemaker wire inside the auxiliary catheter, which greatly avoids the slipping of the pacemaker wire in the auxiliary catheter, reduces the difficulty of operation of medical staff in minimally invasive implantation of temporary pacemaker wire, and further improves the use effect of the implant device in actual application.

[0016] When the present invention is in use, after the pacemaker lead is minimally invasively implanted, the implantation auxiliary mechanism can be automatically driven by pressing the drive bracket inward with one hand, thereby achieving rapid positioning of the U-shaped positioning needle at the distal end of the pacemaker lead in the connective tissue between the ribs and the pericardium, thereby ensuring the stability of the connection between the distal end of the pacemaker lead and the connective tissue between the ribs and the pericardium, and the use effect of the pacemaker lead in actual application.

[0017] In addition, when the present invention is in use, during the process of positioning the U-shaped positioning needle at the distal end of the pacemaker wire, the sliding force generated by the sliding of the positioning auxiliary frame is utilized to cause the clamping ring to automatically move away from the pacemaker wire, thereby realizing automatic separation between the pacemaker wire and the auxiliary catheter, simplifying the operating steps of medical personnel during minimally invasive implantation of the pacemaker wire, and further improving the use effect and work efficiency of the implant device during actual application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture: Figure 1 It is an overall isometric structural schematic diagram of the present invention.

[0021] Figure 2 It is a schematic diagram of the installation structure of the auxiliary airbag and the pressing bracket of the present invention.

[0022] Figure 3 It is a schematic diagram of the installation structure of the driving bracket and the implantation auxiliary mechanism of the present invention.

[0023] Figure 4 It is a structural schematic diagram of the implantation auxiliary mechanism of the present invention.

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the connection between the auxiliary catheter and the positioning auxiliary ring of the present invention.

[0025] Figure 6 It is a schematic diagram of the connection structure between the positioning auxiliary frame and the positioning power-assisting frame of the present invention.

[0026] Figure 7 It is a structural schematic diagram of the clamping auxiliary mechanism of the present invention.

[0027] Figure 8 It is a schematic diagram of the connection structure between the clamping auxiliary mechanism and the positioning auxiliary frame of the present invention.

[0028] Reference numerals list 1. Anti-slip handle; 2. Auxiliary catheter; 201. Positioning ring; 3. Positioning auxiliary ring; 301. Positioning auxiliary part; 4. Driving bracket; 5. Auxiliary airbag; 501. Exhaust duct; 502. Positioning support ring; 6. Driving support shaft; 601. Transmission support shaft; 602. Positioning connecting shaft; 603. Active bevel gear; 604. Driven bevel gear; 605. Bevel gear transmission assembly; 606. Pressing bracket; 607. Transmission rack; 608. Elastic reset part; 609. Transmission gear; 7. Positioning auxiliary frame; 701. Resistance-increasing protrusion; 702. Positioning assisting frame; 8. Clamping ring; 801. Resistance-increasing frame; 802. Force-bearing inclined block; 803. Assisting inclined block; 9. Pacemaker wire. DETAILED DESCRIPTION

[0029] Example 1: Please refer to Figures 1 to 6 As shown: The present invention provides a minimally invasive implantation device for a temporary epicardial pacemaker lead, comprising an anti-slip handle 1, an auxiliary catheter 2, a positioning auxiliary ring 3, a driving bracket 4, an auxiliary airbag 5, a positioning auxiliary frame 7, an implantation auxiliary mechanism, a clamping auxiliary mechanism and a pacemaker lead 9, wherein the auxiliary catheter 2 is fixedly connected to the outer side of the upper end of the anti-slip handle 1; a guide needle slot is provided at the upper end of the auxiliary catheter 2; a positioning slot is provided at the proximal end of the guide needle slot; the positioning auxiliary ring 3 is arranged at the outer side of the distal end of the auxiliary catheter 2; the auxiliary airbag 5 is arranged at the upper side of the inner end of the anti-slip handle 1; an exhaust pipe 501 is fixedly connected to the rear end of the auxiliary airbag 5, an air inlet is provided at the front end of the auxiliary airbag 5, an air inlet check valve is provided on the inner side of the air inlet, and an exhaust check valve is provided on the inner side of the exhaust pipe 501; The outer end of the exhaust pipe 501 is a conical tubular structure; the positioning auxiliary frame 7 is slidably set at the distal end of the inner side of the auxiliary catheter 2, and an annular through hole is opened at the inner end of the positioning auxiliary frame 7; the implantation auxiliary mechanism is set between the auxiliary airbag 5, the driving bracket 4 and the positioning auxiliary frame 7; the implantation auxiliary mechanism includes: a driving support shaft 6, a transmission support shaft 601 and a positioning connecting shaft 602; the clamping auxiliary mechanism is set between the positioning auxiliary frame 7 and the positioning auxiliary ring 3, and the clamping auxiliary mechanism includes: a clamping ring 8, there are two clamping rings 8, and the two clamping rings 8 are respectively slidably set on the upper and lower sides of the outer end of the positioning auxiliary frame 7, and the clamping ring 8 is a semi-arc block structure; the pacemaker wire 9 is inserted into the inner end of the auxiliary catheter 2; the positioning needle at the distal end of the pacemaker wire 9 is a U-shaped needle structure.

[0030] The distal end of the auxiliary catheter 2 is fixedly connected with a positioning ring 201, and a threaded connection groove is arranged on the outer side of the positioning ring 201; An auxiliary installation groove with threads is provided at the inner end surface of the positioning auxiliary ring 3 and the alignment position with the positioning ring 201; The outer end of the exhaust pipe 501 is fixedly connected with a positioning support ring 502 , and the outer end of the positioning support ring 502 is fixedly connected to the inner wall of the auxiliary conduit 2 ; a U-shaped groove is provided at the upper end of the positioning support ring 502 .

[0031] There are two driving shafts 6, which are coaxially fixedly connected to the left and right sides of the upper end of the driving bracket 4, and the driving shafts 6 are rotatably connected to the anti-drop handle 1; the longitudinal section of the driving shaft 6 is a convex structure; The transmission support shaft 601 is vertically rotatably arranged on the outside of the right end driving support shaft 6; The positioning connection shaft 602 is vertically rotatably arranged on the outer side of the transmission support shaft 601 .

[0032] Among them, the inner end face of the right end driving support shaft 6 is coaxially fixedly connected with the active bevel gear 603; the outer end of the transmission support shaft 601 is coaxially fixedly connected with the driven bevel gear 604; the driven bevel gear 604 and the active bevel gear 603 are meshed with each other, and the diameter of the active bevel gear 603 is larger than the diameter of the driven bevel gear 604.

[0033] Among them, a bevel gear transmission assembly 605 is provided between the transmission support shaft 601 and the positioning connection shaft 602; An elastic reset member 608 is fixedly connected between the driving support shaft 6 and the anti-drop handle 1 .

[0034] The implantation auxiliary mechanism further includes: a pressing bracket 606; the pressing bracket 606 is slidably arranged on the outside of the auxiliary airbag 5; the left and right sides of the bottom end surface of the pressing bracket 606 are vertically fixedly connected with a transmission rack 607; Transmission gears 609 are coaxially fixedly connected to the left and right sides of the outer end of the positioning connection shaft 602; the transmission gears 609 on the same left and right sides are meshed with the transmission rack 607, and the transmission rack 607 and the transmission gear 609 together constitute a gear rack transmission mechanism.

[0035] Among them, the outer end of the positioning auxiliary frame 7 is fixedly connected to a circumferential array with a resistance-increasing protrusion 701; A resistance increasing groove is provided on the inner side of the auxiliary conduit 2 at a position aligned with the resistance increasing protrusion 701 .

[0036] The left and right sides of the outer end of the positioning auxiliary frame 7 are fixedly connected with the positioning auxiliary frame 702; the two sides of the outer end of the positioning auxiliary frame 702 are slope structures inclined from the inner side of the distal end to the outer side of the proximal end; A positioning auxiliary member 301 is coaxially fixedly connected to the inner side of the positioning auxiliary ring 3; the inner end of the positioning auxiliary member 301 is an annular slope structure inclined from the inner side of the distal end to the outer side of the proximal end.

[0037] The specific usage and function of this embodiment are as follows: When the present invention is in use, the pacemaker wire 9 is inserted from the end of the auxiliary catheter 2 through the annular through hole at the inner end of the positioning auxiliary frame 7 into the auxiliary catheter 2, and the pacemaker wire 9 is inserted into the auxiliary catheter 2 through the cooperation of the guide needle groove and the proximal positioning needle of the pacemaker wire 9, and then the proximal positioning needle of the pacemaker wire 9 is plugged into the positioning groove, thereby realizing the rapid assembly and insertion between the pacemaker wire 9 and the auxiliary catheter 2; firstly, the patient's skin is punctured with a core insertion device, and the core needle is taken out and then inserted into the auxiliary catheter 2, and during the process of holding the anti-slip handle 1 and squeezing the drive bracket 4 to make the drive bracket 4 flip inward, the active bevel gear 603 drives the driven bevel gear 604 and the transmission support shaft 601 to realize multiple turns of rotation, and during the rotation of the transmission support shaft 601, the bevel gear transmission component 605 drives the fixed support shaft 601 to rotate for multiple circles. The positioning connecting shaft 602 rotates. During the rotation of the positioning connecting shaft 602, the transmission gear 609 pushes the transmission rack 607 and the pressing bracket 606 to slide backward. When the pressing bracket 606 slides backward, the auxiliary airbag 5 is squeezed, and the flow force of the gas is used to push the positioning auxiliary frame 7 to slide forward. During the forward sliding of the positioning auxiliary frame 7, the two ends of the U-shaped positioning needle at the distal end of the pacemaker wire 9 are bent by the cooperation of the positioning assisting frame 702 and the positioning auxiliary component 301, thereby realizing the positioning assistance of the distal end of the pacemaker wire 9 in the connective tissue between the ribs and the pericardium. After the gas is discharged from the exhaust pipe 501, the inside of the auxiliary airbag 5 is in a negative pressure state, and the gas enters from the air inlet again to restore the auxiliary airbag 5 to its initial state, so that the pacemaker wire 9 can be fired multiple times.

[0038] Example 2: Please refer to Figures 5 to 8 As shown: Based on Example 1: The inner end surface of the clamping ring 8 is fixedly connected with a resistance increasing frame 801 ; the resistance increasing frame 801 is elastically connected to the positioning auxiliary frame 7 by using a compression spring.

[0039] Among them, the outer end face of the clamping ring 8 is fixedly connected with a force-bearing inclined block 802; a boosting inclined block 803 is arranged at the far end of the force-bearing inclined block 802, and the boosting inclined block 803 is fixedly connected to the auxiliary catheter 2 by a connecting column; the contact surfaces between the force-bearing inclined block 802 and the boosting inclined block 803 on the same side are both inclined block structures.

[0040] The specific usage and function of this embodiment are as follows: When the present invention is in use, after the pacemaker wire 9 is assembled and inserted into the auxiliary catheter 2, the compression spring squeezes the resistance-increasing frame 801, causing the clamping rings 8 at both ends to move relative to each other, thereby realizing automatic clamping and positioning of the pacemaker wire 9 at the inner end of the auxiliary catheter 2; in the process of positioning the distal end of the pacemaker wire 9 in the connective tissue between the ribs and the pericardium, while the positioning auxiliary frame 7 slides toward the distal end, the assisting inclined block 803 pushes the force-bearing inclined block 802, thereby realizing the synchronous outward sliding of the force-bearing inclined block 802, so that the force-bearing inclined block 802 and the clamping ring 8 are away from the pacemaker wire 9, thereby realizing the automatic separation between the pacemaker wire 9 and the auxiliary catheter 2 and the positioning auxiliary frame 7.

[0041] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0042] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0043] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A minimally invasive implantation device for a temporary epicardial pacemaker lead, comprising: An anti-slip handle (1), an auxiliary catheter (2), a positioning auxiliary ring (3), a driving bracket (4), an auxiliary airbag (5), a positioning auxiliary frame (7), an implantation auxiliary mechanism, a clamping auxiliary mechanism and a pacemaker wire (9), wherein the auxiliary catheter (2) is fixedly connected to the outer side of the upper end of the anti-slip handle (1); ... The invention relates to a conical tubular structure; the positioning auxiliary frame (7) is slidably arranged at the inner distal end of the auxiliary catheter (2), and the inner end of the positioning auxiliary frame (7) is provided with an annular through hole; the implantation auxiliary mechanism is arranged between the auxiliary airbag (5), the driving support (4) and the positioning auxiliary frame (7); the implantation auxiliary mechanism comprises: a driving support shaft (6), a transmission support shaft (601) and a positioning connection shaft (602); the clamping auxiliary mechanism is arranged between the positioning auxiliary frame (7) and the positioning auxiliary ring (3), and the clamping auxiliary mechanism comprises: a clamping ring (8), and the clamping ring (8) has two clamping rings (8), and the two clamping rings (8) are respectively slidably arranged on the upper and lower sides of the outer end of the positioning auxiliary frame (7), and the clamping ring (8) is a semi-arc block structure; the pacemaker wire (9) is inserted into the inner end of the auxiliary catheter (2); and the positioning needle at the distal end of the pacemaker wire (9) is a U-shaped needle structure.

2. A minimally invasive epicardial temporary pacemaker lead implantation device as claimed in claim 1, characterized in that: The distal end of the auxiliary catheter (2) is fixedly connected with a positioning ring (201), and a threaded connection groove is arranged on the outside of the positioning ring (201); An auxiliary installation groove provided with a thread is provided at a position where the inner end surface of the auxiliary positioning ring (3) is aligned with the positioning ring (201); The outer end of the exhaust pipe (501) is fixedly connected to a positioning support ring (502), and the outer end of the positioning support ring (502) is fixedly connected to the inner wall of the auxiliary guide tube (2); a U-shaped groove is formed at the upper end of the positioning support ring (502).

3. A minimally invasive epicardial temporary pacemaker lead implantation device as claimed in claim 1, characterized in that: There are two driving support shafts (6), which are coaxially fixedly connected to the left and right sides of the upper end of the driving bracket (4), and the driving support shafts (6) are rotatably connected to the anti-drop handle (1); the longitudinal section of the driving support shaft (6) is a convex-shaped structure; The transmission support shaft (601) is vertically rotatably arranged on the outside of the driving support shaft (6) at the right end; The positioning connection shaft (602) is vertically rotatably arranged outside the transmission support shaft (601).

4. The minimally invasive implantation device for a temporary epicardial pacemaker lead according to claim 1, characterized in that: The inner end surface of the driving support shaft (6) at the right end is coaxially fixedly connected to a driving bevel gear (603); the outer end of the transmission support shaft (601) is coaxially fixedly connected to a driven bevel gear (604); the driven bevel gear (604) and the driving bevel gear (603) are meshed with each other, and the diameter of the driving bevel gear (603) is larger than the diameter of the driven bevel gear (604).

5. The minimally invasive implantation device for a temporary epicardial pacemaker lead according to claim 1, characterized in that: A bevel gear transmission assembly (605) is provided between the transmission support shaft (601) and the positioning connection shaft (602); An elastic reset member (608) is fixedly connected between the driving support shaft (6) and the anti-drop handle (1).

6. The minimally invasive implantation device for a temporary epicardial pacemaker lead according to claim 1, characterized in that: The implantation auxiliary mechanism further comprises: a pressing bracket (606); the pressing bracket (606) is slidably arranged on the outside of the auxiliary airbag (5); and transmission racks (607) are vertically fixedly connected to the left and right sides of the bottom end surface of the pressing bracket (606); Transmission gears (609) are coaxially fixedly connected to the left and right sides of the outer end of the positioning connection shaft (602); the transmission gears (609) on the same left and right sides are meshed with the transmission rack (607), and the transmission rack (607) and the transmission gear (609) together constitute a gear rack transmission mechanism.

7. The minimally invasive implantation device for a temporary epicardial pacemaker lead according to claim 1, characterized in that: The outer end of the positioning auxiliary frame (7) is fixedly connected to a circumferential array of resistance-increasing protrusions (701); A resistance increasing groove is provided on the inner side of the auxiliary conduit (2) at a position aligned with the resistance increasing protrusion (701).

8. The minimally invasive implantation device for a temporary epicardial pacemaker lead according to claim 1, characterized in that: The left and right sides of the outer end of the positioning auxiliary frame (7) are fixedly connected to a positioning assisting frame (702); the two sides of the outer end of the positioning assisting frame (702) are slope-shaped structures inclined from the inner side of the distal end to the outer side of the proximal end; A positioning auxiliary piece (301) is coaxially fixedly connected to the inner side of the positioning auxiliary ring (3); the inner end of the positioning auxiliary piece (301) is an annular slope structure inclined from the inner side of the distal end to the outer side of the proximal end.

9. The minimally invasive implantation device for a temporary epicardial pacemaker lead according to claim 1, characterized in that: The inner end surface of the clamping ring (8) is fixedly connected to a resistance increasing frame (801); the resistance increasing frame (801) is elastically connected to the positioning auxiliary frame (7) by using a compression spring.

10. The minimally invasive implantation device for a temporary epicardial pacemaker lead according to claim 1, characterized in that: The outer end surface of the clamping ring (8) is fixedly connected to a force-bearing inclined block (802); a boosting inclined block (803) is provided at the far end of the force-bearing inclined block (802); the boosting inclined block (803) is fixedly connected to the auxiliary catheter (2) by a connecting column; the contacting surfaces of the force-bearing inclined block (802) and the boosting inclined block (803) on the same side are both inclined block structures.

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