A transcutaneous cable connector and a traction device therefor

Abstract

The application discloses a transcutaneous cable connector, comprising: a tail end sheath having a hollow cavity for a cable to pass through, a first wire clamp in clamping cooperation with the tail end sheath along the axial direction of the tail end sheath, the first wire clamp being used for compressing the cable passing through the hollow cavity; a second wire clamp in clamping cooperation with the first wire clamp; a connector core comprising a terminal for connecting the cable, a first end of the connector core being inserted into the first wire clamp, a second end of the connector core being inserted into the second wire clamp, and the connector core being in clamping cooperation with the combination of the first wire clamp and the second wire clamp; and a connector shell being sleeved outside the connector core to provide a space for cable insertion. The first wire clamp and the second wire clamp are used to realize the clamping fixation of the transcutaneous cable connector, the outer diameter size of the connector is significantly reduced compared with the existing screw fixation mode, and thus the wound area generated when a patient uses an active medical instrument is reduced. The application further discloses a traction device suitable for the transcutaneous cable connector.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a percutaneous cable connector and its traction device. Background Technology

[0002] With the continuous advancement of medical device technology, active medical devices are being used more and more widely in the treatment of clinical diseases. For example, for patients with heart failure, in situations where conservative drug treatment is ineffective and heart transplant donors are limited, ventricular assist devices (VADs) have become the most effective treatment for various types of end-stage heart failure.

[0003] As an active medical device, a VAD needs to provide control signals and energy externally. Therefore, the connecting cables related to VADs are particularly important. In order to ensure the strength and durability of the cables, they need to have a large diameter. At the same time, the connectors of the cables are often locked with locking nuts to secure the cable clamps. The connection method is mostly a threaded structure, and the connector shell is required to have a thickness that meets the strength of the threaded connection. As a result, the diameter of the connector can be 2-3 times the diameter of the cable, which can cause a larger wound area for the patient and increase the risk of postoperative infection.

[0004] Therefore, how to reduce the wound area of ​​patients when using active medical devices is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a percutaneous cable connector to reduce the wound area of ​​patients when using active medical devices.

[0006] Another object of the present invention is to provide a traction device suitable for the above-mentioned perforated cable connector.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A transforated cable connector, comprising:

[0009] The tail end sheath has a hollow cavity for the cable to pass through;

[0010] The first clamp engages with the tail end sheath along the axial direction of the tail end sheath, and the first clamp is used to press the cable passing through the hollow cavity;

[0011] The second wire clamp engages with the first wire clamp.

[0012] A connector core includes terminals for connecting a cable, wherein a first end of the connector core is inserted into the first clamp, a second end is inserted into the second clamp, and the connector core is engaged with a combination formed by the connection of the first clamp and the second clamp.

[0013] The connector housing is fitted over the connector core to provide space for cable insertion.

[0014] Preferably, in the above-mentioned transcut cable connector, the inner wall of the first clamp is provided with a recess, and the second clamp engages with the first clamp at the recess position.

[0015] The connector core has a protrusion at a non-end position. The side of the protrusion facing the first end abuts against the recess, and the side of the protrusion facing the second end abuts against the second wire clamp.

[0016] Preferably, the above-mentioned transcut cable connector further includes a third clamp and / or a fourth clamp, wherein the third clamp is sleeved on the outer periphery of the engagement position of the first clamp and the second clamp, and the two ends of the third clamp are respectively engaged with the first clamp and the connector housing in the axial direction;

[0017] The fourth wire clamp is inserted into the side wall of the connector housing along the axial direction of the connector housing, and the two ends of the fourth wire clamp are respectively engaged with the first wire clamp and the connector housing.

[0018] Preferably, in the above-mentioned transforated cable connector, the connector core, the first clamp, and the second clamp are provided with a mis-proof structure in the circumferential direction.

[0019] Preferably, in the above-mentioned transforated cable connector, the first clamp and the second clamp each have an anti-misoperation recess on their inner walls, and the connector core has two corresponding anti-misoperation protrusions on its outer wall that engage with the anti-misoperation recesses.

[0020] Preferably, in the above-mentioned perforated cable connector, the inner wall of the connector housing is provided with at least two non-adjacent sealing rings.

[0021] Preferably, in the above-mentioned transforated cable connector, the wall thickness of the second clamp is 0.25mm-0.35mm.

[0022] Preferably, in the above-mentioned transforated cable connector, the end of the first wire clamp into which the connector core is inserted is provided with a dividing groove, the dividing groove dividing the first wire clamp into at least two connected segments.

[0023] A traction device, suitable for the perforated cable connector provided in any of the above embodiments, comprising:

[0024] A traction head and a sleeve are used to lock the portion of the perforated cable connector to be pulled;

[0025] A traction pin and a traction handle, wherein the traction pin is used to connect the traction head and the traction handle, and the traction handle is capable of locking and unlocking the traction pin.

[0026] Preferably, in the above-mentioned traction device, the traction handle includes a body, a bolt, a nut, and a spring. The bolt is a vertical structure with a reducing diameter joint in the middle. The bolt is inserted into the body and one end extends out of the body. The end of the bolt extending out of the body is connected to the nut. The two ends of the spring abut against the body and the end of the bolt that extends into the body, respectively.

[0027] The main body is provided with an insertion hole for the traction needle to be inserted. When the variable diameter section moves to the position of the insertion hole, the traction needle can extend into and out of the insertion hole. When the traction needle extends into the insertion hole, the variable diameter section moves. The larger diameter area on the latch engages with the end of the traction needle to lock the traction needle.

[0028] Preferably, in the above-mentioned traction device, the traction head engages with the second clamp to pull the portion of the transcut cable connector to be pulled, and the sleeve is fitted around the outer periphery of the position where the traction head engages with the second clamp.

[0029] Preferably, in the above-mentioned traction device, the wall thickness of the traction head is 0.20mm-0.30mm.

[0030] As can be seen from the above technical solution, the perforated cable connector provided by the present invention includes a tail sheath, a first clamp, a second clamp, a connector core, and a connector housing. The tail sheath has a hollow cavity for the cable to pass through. The first clamp engages with the tail sheath along its axial direction and is used to press the cable passing through the hollow cavity. It should be noted that, to reduce the outer diameter of the perforated cable connector, the first clamp is preferably engaged with the inner wall of the hollow cavity. The spring-loaded engagement method simplifies the connection structure and further reduces the outer diameter of the perforated cable connector. The second clamp engages with the first clamp to form an assembly. The connector core includes terminals for connecting the cable. The connector core is installed by inserting the first end into the first clamp and the second end into the second clamp. The connector core engages with the assembly structure formed by the first and second clamps to fix the connector core. The connector housing is fitted over the connector core to protect it and provide space for the terminals in the connector core to be inserted into the external cable. The percutaneous cable connector provided by this invention, by setting a snap-fit ​​tail sheath and a first clamp, compresses the cable passing through the hollow cavity while providing a passage for the cable. Compared to the prior art method of locking the cable with a locking nut, the snap-fit ​​tail sheath and first clamp occupy less space. Simultaneously, a second clamp is provided to snap-fit ​​with the first clamp, thereby securing the connector core through the combination of the first and second clamps. The snap-fit ​​method involves both ends of the connector core extending into the first and second clamps respectively, so that the outer diameter of the percutaneous cable connector at the corresponding position of the connector core is the same as the outer diameter of the first and second clamps. Therefore, by maintaining the connection between the first and second clamps while ensuring they are close to the connector core, the outer diameter of the percutaneous cable connector can be reduced. Compared to the prior art method of threaded cable connection, this snap-fit ​​structure eliminates the need for a locking nut and a space-consuming locking structure, significantly reducing the outer diameter of the percutaneous cable connector and thus reducing the wound area for patients using the corresponding percutaneous cable connector. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 An exploded view of a perforated cable connector provided in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the assembly structure of the transcatheter cable connector provided in an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the first clamp structure in a transforated cable connector provided in an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the connector core structure in a transforated cable connector provided in an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the traction device structure provided in an embodiment of the present invention;

[0037] Figure 6 This is an exploded view of a portion of the traction device structure provided in an embodiment of the present invention;

[0038] Among them, 10 is the tail end sheath, 110 is the hollow cavity, 20 is the first wire clamp, 210 is the recess, 220 is the dividing groove, 30 is the second wire clamp, 40 is the connector core, 410 is the wiring terminal, 420 is the protrusion, 50 is the connector shell, 510 is the sealing ring, 60 is the third wire clamp, and 70 is the fourth wire clamp.

[0039] 80 is the traction handle, 810 is the main body, 8110 is the insertion hole, 820 is the bolt, 8210 is the reducing joint, 830 is the nut, 840 is the spring, 90 is the traction needle, 100 is the traction head, and 200 is the sleeve. Detailed Implementation

[0040] The core of this invention is to disclose a percutaneous cable connector to reduce the wound area of ​​patients when using active medical devices.

[0041] Another key aspect of this invention is the disclosure of a traction device suitable for the aforementioned perforated cable connector.

[0042] To enable those skilled in the art to better understand the present invention, embodiments of the present invention will be described below with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the invention as described in the claims. Additionally, the complete contents of the configurations represented in the following embodiments are not limited to those necessary for the solution of the invention described in the claims.

[0043] like Figure 1 and Figure 2As shown, the percutaneous cable connector disclosed in this embodiment of the invention includes a tail sleeve 10, a first clamp 20, a second clamp 30, a connector core 40, and a connector housing 50. The tail sleeve 10 has a hollow cavity 110 for the cable to pass through. The first clamp 20 engages with the tail sleeve 10 along the axial direction of the tail sleeve 10. The first clamp 20 is used to press the cable passing through the hollow cavity 110. It should be noted that, in order to reduce the outer diameter of the percutaneous cable connector, it is preferable that the first clamp 20 is engaged with the inner wall of the hollow cavity 110, so that the engagement position of the first clamp 20 with the hollow cavity 110 is located inside the hollow cavity 110, thereby reducing the outer diameter of the percutaneous cable connector. At the same time, the spring-loaded engagement method can simplify the connection structure and further reduce the outer diameter of the percutaneous cable connector.

[0044] The second wire clamp 30 engages with the first wire clamp 20 to form an assembly. Its purpose is to connect and fix the tail end sheath 10 and the connector core 40. The connector core 40 includes a terminal block 410 for connecting an external cable. The connector core 40 is installed by inserting the first end into the first wire clamp 20 and the second end into the second wire clamp 30. The connector core 40 engages with the assembly structure formed by the first wire clamp 20 and the second wire clamp 30 to fix the connector core 40.

[0045] It should be noted that in the percutaneous cable connector provided in this embodiment of the invention, the tail sheath 10, the first wire clamp 20, the second wire clamp 30, and the connector core 40 are components that need to pass through the body and be inserted into the connector housing 50 to complete the final assembly. Therefore, the outer diameter of the tail sheath 10, the first wire clamp 20, the second wire clamp 30, and the connector core 40 directly affects the wound area of ​​the patient. In this embodiment of the invention, the tail sheath 10, the first wire clamp 20, the second wire clamp 30, and the connector core 40 are designed as a multi-segment snap-fit ​​structure that cooperates with each other, avoiding the use of threaded connection structure as in the prior art. This reduces the radial dimension of the tail sheath 10, the first wire clamp 20, the second wire clamp 30, and the connector core 40 after connection, thereby reducing the wound area generated when the patient uses an active medical device and reducing the risk of postoperative infection.

[0046] The connector housing 50 is fitted over the connector core 40 to protect the connector core 40 and provide space for the terminals 410 in the connector core 40 to be plugged into external cables. It should be noted that the connector housing 50 is pre-installed on the plug that mates with the perforated cable connector during the use of the perforated cable connector, in preparation for connection with components that pass through the body.

[0047] The transcatheter cable connector provided in this embodiment of the invention, by setting a snap-fit ​​tail sheath 10 and a first wire clamp 20, simultaneously provides a hollow cavity 110 through which the cable passes while pressing the cable passing through the hollow cavity 110. Furthermore, the snap-fit ​​tail sheath 10 and the first wire clamp 20 occupy less space compared to the prior art method of locking the cable with a locking nut. Simultaneously, a second wire clamp 30 is provided to snap-fit ​​with the first wire clamp 20, so that the connector core 40 is snap-fitted and fixed by the combination of the first wire clamp 20 and the second wire clamp 30. The snap-fit ​​method involves both ends of the connector core 40 extending into the first wire clamp 20 and the second wire clamp, respectively. Inside the connector core 40, the outer diameter of the percutaneous cable connector at the corresponding position is equal to the outer diameter of the first clamp 20 and the second clamp 30. Therefore, while maintaining the connection between the first clamp 20 and the second clamp 30, the first clamp 20 and the second clamp 30 are pressed tightly against the connector core 40, which reduces the outer diameter of the percutaneous cable connector. Compared with the threaded cable connection method in the prior art, the above-mentioned snap-fit ​​structure does not require the space occupied by the locking nut and locking strength structure, which can significantly reduce the outer diameter of the percutaneous cable connector, thereby reducing the wound area generated when the patient uses the corresponding percutaneous cable connector and reducing the risk of postoperative infection.

[0048] Furthermore, such as Figure 3 and Figure 4 As shown, in a specific embodiment of the present invention, the snap-fit ​​structure of the assembly formed by the connector core 40, the first wire clamp 20, and the second wire clamp 30 is as follows: a recess 210 is provided on the inner wall of the first wire clamp 20, and the second wire clamp 30 snaps into the first wire clamp 20 at the position of the recess 210; and a protrusion 420 is provided on the non-end position of the connector core 40. The side of the protrusion 420 facing the first end of the connector core 40 abuts against the recess 210, and the side of the protrusion 420 facing the second end of the connector core 40 abuts against the second wire clamp 30, thereby forming a snap-fit ​​structure of three components.

[0049] It should be noted that during the assembly process of the connection structure between the connector core 40 and the first wire clamp 20 and the second wire clamp 30, the connector core 40 needs to be inserted into the second wire clamp 30 first, until the side of the protrusion 420 of the connector core 40 facing the second end of the connector core 40 abuts against the second wire clamp 30. Then, the connector core 40 and the second wire clamp 30 are inserted into the first wire clamp 20 as a whole, until the protrusion 420 of the connector core 40 and the second wire clamp 30 abut against the two ends of the recess 210 of the first wire clamp 20 respectively, so as to complete the assembly. This structure can achieve good fixation of the connector core 40. At the same time, due to the snap-fit ​​effect of the first wire clamp 20 and the second wire clamp 30, the connector core 40 is limited in the axial direction and cannot move, thus preventing the connector core 40 from falling off during use.

[0050] Furthermore, to ensure that the percutaneous cable connector provided in this embodiment of the invention will not affect the surgical effect due to component detachment during use, in a specific embodiment of the invention, the percutaneous cable connector further includes a third clamp 60 and / or a fourth clamp 70. The third clamp 60 is sleeved on the outer periphery of the engagement position of the first clamp 20 and the second clamp 30, and the two ends of the third clamp 60 respectively engage the first clamp 20 and the connector housing 50 in the axial direction to strengthen the connection position of the first clamp 20, the second clamp 30 and the connector core 40; the fourth clamp 70 is inserted into the side wall of the connector housing 50 along the axial direction of the connector housing 50, and the two ends of the fourth clamp 70 respectively engage the first clamp 20 and the connector housing 50 to strengthen the connection strength between the connector housing 50 and the first clamp 20.

[0051] It should be noted that the third clamp 60 and the fourth clamp 70 can be used individually or together. When using the fourth clamp 70, it is pre-installed on the connector housing 50, and during the use of the transcatheter cable connector, the fourth clamp 70 and the connector housing 50 are located outside the body simultaneously, waiting for connection.

[0052] Based on the above embodiments, the connector core 40, the first wire clamp 20, and the second wire clamp 30 already have a good connection and limiting structure in the axial direction. Furthermore, in order to ensure that the connector core 40 is well matched with the first wire clamp 20 and the second wire clamp 30 in the circumferential direction, so as to limit the rotation of the connector core 40 during use, in a specific embodiment of the present invention, the connector core 40, the first wire clamp 20, and the second wire clamp 30 are provided with an anti-misalignment structure in the circumferential direction to limit and align the connector core 40, the first wire clamp 20, and the second wire clamp 30 in the circumferential direction.

[0053] Based on the above embodiments, in a specific embodiment of the present invention, a mis-proof recess is provided on the inner wall of the first wire clamp 20 and the second wire clamp 30, and two mis-proof protrusions are provided on the outer wall of the connector core 40 to engage with the mis-proof recesses. When both ends of the connector core 40 are inserted into the first wire clamp 20 and the second wire clamp 30 respectively, and the two mis-proof protrusions engage with the two mis-proof recesses respectively, the connector core 40, the first wire clamp 20 and the second wire clamp 30 are installed.

[0054] It should be noted that the error prevention structures between the connector core 40 and the first wire clamp 20, and between the connector core 40 and the second wire clamp 30, can be arbitrarily set, as long as error prevention is provided at both the connector core 40 and the first wire clamp 20 and the second wire clamp 30.

[0055] Furthermore, in a specific embodiment of the present invention, at least two non-adjacent sealing rings 510 are provided on the inner wall of the connector housing 50 to ensure the sealing and waterproof performance of the perforated cable connector after installation.

[0056] Furthermore, in the perforated cable connector provided in the embodiments of the present invention, in order to reduce the outer diameter of the perforated cable connector and maintain the connection strength, the wall thickness of the second clamp 30 is 0.25mm-0.35mm, preferably 0.30mm.

[0057] Furthermore, in order to enable the connector core 40 and the second wire clamp 30 to smoothly engage with the first wire clamp 20, in a specific embodiment of the present invention, a dividing groove 220 is provided at the end of the first wire clamp 20 into which the connector core 40 is inserted. The dividing groove 220 divides the first wire clamp 20 into at least two connected halves, so that the first wire clamp 20 maintains an integral structure while the end into which the connector core 40 is inserted has a certain deformation effect, which facilitates the insertion of the connector core 40.

[0058] In one specific embodiment of the present invention, four dividing grooves 220 are evenly arranged in the circumference of the first clamp 20.

[0059] like Figure 5 and Figure 6 As shown, this embodiment of the invention also provides a traction device, which is applicable to the percutaneous cable connector provided in any of the above embodiments, to effectively pull the part of the percutaneous cable connector that needs to be pulled out of the body. Specifically, the traction device includes a traction head 100, a sleeve 200, a traction pin 90, and a traction handle 80. The traction head 100 and the sleeve 200 are used to lock the part of the percutaneous cable connector to be pulled out of the body. The traction pin 90 is used to connect the traction head 100 and the traction handle 80. The traction handle 80 is used to perform the traction operation. At the same time, the traction handle 80 can lock and unlock the traction pin 90 to lock the traction pin 90 during use and remove the traction pin 90 after use.

[0060] Specifically, in one embodiment of the present invention, the traction handle 80 includes a main body 810, a bolt 820, a nut 830, and a spring 840. The bolt 820 is a vertical structure, and a reducing diameter joint 8210 is provided in the middle of the bolt 820, meaning the middle and surrounding areas of the bolt 820 have a smaller diameter in the middle and larger diameters on both sides. The bolt 820 is inserted into the main body 810 with one end extending out of the main body 810. Simultaneously, the end of the bolt 820 extending out of the main body 810 is connected to the nut 830. The spring 840 is disposed inside the bolt 820, and its two ends respectively abut against the main body 810 and the end of the bolt 820 extending into the main body 810. The effect of this structure is that the bolt 820 can move along the axial direction of the main body 810 under the action of the spring 840. Correspondingly, the main body 810 is provided with an insertion hole 8110 for the insertion of a traction needle 90. The traction needle 90 is used to insert into the insertion hole 8110. The end has a fixing groove, and the insertion hole 8110 connects to the position of the insertion bolt 820 inside the main body 810. Under the action of the spring 840 alone, the reducing joint 8210 is closer to the nut 830 than the insertion hole 8110, so that when the bolt 820 is pressed, the spring 840 is compressed, and at the same time, the reducing joint 8210 of the bolt 820 moves toward the spring 840 until the reducing joint 8210 reaches the position of the insertion hole 8110, at which point the traction pin 90 can extend and retract. When the insertion hole 8110 is activated, the traction pin 90 is inserted into the insertion hole 8110 and the latch 820 is released. Under the action of the spring 840, the latch 820 moves away from the spring 840. The variable diameter joint 8210 tends to move away from the insertion hole 8110 and away from the spring 840. At this time, the larger diameter area on the latch 820 engages with the end of the traction pin 90 to lock the traction pin 90. With the above structure, the traction handle 80 can lock and unlock the traction pin 90.

[0061] It should be noted that the larger diameter area on the latch 820 here refers to the area on both sides of the reducer 8210 on the latch 820 where the diameter is larger than that of the reducer 8210.

[0062] Furthermore, the traction method of the traction device in tractioning the part to be traction in the sheathed cable connector during use is as follows: the traction head 100 is engaged with the second clamp 30. In a specific embodiment of the present invention, a slot is opened on the second clamp 30, and the traction head 100 is engaged with the slot through the protruding position to connect with the second clamp 30. At the same time, the sleeve 200 is sleeved on the outer periphery of the engagement position between the traction head 100 and the second clamp 30. After the engagement between the traction head 100 and the second clamp 30 is completed, the sleeve is moved to the engagement position between the traction head 100 and the second clamp 30 to ensure the stability of the engagement between the traction head 100 and the second clamp 30, thereby ensuring the smooth traction process of the traction device.

[0063] Furthermore, since the traction head 100 also needs to be inserted into the patient's body for traction, in order to avoid the traction head 100 causing a large wound to the patient, in a specific embodiment of the present invention, the wall thickness of the traction head 100 is 0.20mm-0.30mm, preferably 0.25mm.

[0064] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed.

[0065] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transcatheter cable connector, characterized in that, Used in the field of implantable artificial hearts, including: The tail end sheath (10) has a hollow cavity (110) for the cable to pass through. The first clamp (20) engages with the tail end sheath (10) along the axial direction of the tail end sheath (10), and the first clamp (20) is used to press the cable passing through the hollow cavity (110); The second wire clamp (30) engages with the first wire clamp (20); The connector core (40) includes a terminal block (410) for connecting a cable. A first end of the connector core (40) is inserted into the first clamp (20), and a second end is inserted into the second clamp (30). The connector core (40) is snapped into a combination formed by connecting the first clamp (20) and the second clamp (30). A connector housing (50) is fitted over the connector core (40) to provide space for cable insertion; The first wire clamp (20) has a recess (210) on its inner wall, and the second wire clamp (30) engages with the first wire clamp (20) at the recess (210); the connector core (40) has a protrusion (420) at a non-end position, the side of the protrusion (420) facing the first end abuts against the recess (210), and the side of the protrusion (420) facing the second end abuts against the second wire clamp (30); It also includes a third wire clamp (60) and / or a fourth wire clamp (70), wherein the third wire clamp (60) is sleeved on the outer periphery of the engagement position of the first wire clamp (20) and the second wire clamp (30), and the two ends of the third wire clamp (60) respectively engage the first wire clamp (20) and the connector housing (50) in the axial direction; the fourth wire clamp (70) is inserted into the side wall of the connector housing (50) along the axial direction of the connector housing (50), and the two ends of the fourth wire clamp (70) respectively engage the first wire clamp (20) and the connector housing (50).

2. The transcatheter cable connector as described in claim 1, characterized in that, The connector core (40), the first wire clamp (20) and the second wire clamp (30) are provided with a fault-proof structure in the circumferential direction.

3. The transcut cable connector as described in claim 2, characterized in that, The first wire clamp (20) and the second wire clamp (30) each have a mis-proof recess on their inner walls, and the connector core (40) has two mis-proof protrusions on its outer wall that engage with the mis-proof recesses.

4. The transcatheter cable connector as described in claim 1, characterized in that, The inner wall of the connector housing (50) is provided with at least two non-adjacent sealing rings (510).

5. The transcatheter cable connector as described in claim 1, characterized in that, The wall thickness of the second wire clamp (30) is 0.25mm-0.35mm.

6. The transcatheter cable connector as claimed in claim 1, characterized in that, The first wire clamp (20) has a dividing groove (220) at one end into which the connector core (40) is inserted, and the dividing groove (220) divides the first wire clamp (20) into at least two connected segments.

7. A traction device suitable for a perforated cable connector as described in any one of claims 1-6, characterized in that, include: A traction head (100) and a sleeve (200) are used to lock the portion of the transcatheter cable connector to be pulled; A traction pin (90) and a traction handle (80), wherein the traction pin (90) is used to connect the traction head (100) and the traction handle (80), and the traction handle (80) is capable of locking and unlocking the traction pin (90).

8. The traction device as described in claim 7, characterized in that, The traction handle (80) includes a main body (810), a bolt (820), a nut (830), and a spring (840). The bolt (820) is a vertical structure with a reducing diameter joint (8210) in the middle. The bolt (820) is inserted into the main body (810) and one end extends out of the main body (810). The end of the bolt (820) extending out of the main body (810) is connected to the nut (830). The two ends of the spring (840) abut against the main body (810) and the end of the bolt (820) that extends into the main body (810), respectively. The main body (810) is provided with an insertion hole (8110) for inserting the traction pin (90). When the variable diameter joint (8210) moves to the position of the insertion hole (8110), the traction pin (90) can extend into and out of the insertion hole (8110). When the traction pin (90) extends into the insertion hole (8110), the variable diameter joint (8210) moves. The larger diameter area on the latch (820) engages with the end of the traction pin (90) to lock the traction pin (90).

9. The traction device as described in claim 7, characterized in that, The traction head (100) engages with the second clamp (30) to pull the portion of the transforated cable connector to be pulled, and the sleeve (200) is fitted around the outer periphery of the engagement position between the traction head (100) and the second clamp (30).

10. The traction device as described in claim 7, characterized in that, The wall thickness of the traction head (100) is 0.20mm-0.30mm.

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