CN221732047U - A guide wire fixing clamping assembly and interventional instrument delivery device - Google Patents

Abstract

The utility model discloses a guidewire fixing and clamping assembly and an interventional instrument delivery device, and relates to the field of medical devices. The guidewire fixing and clamping assembly includes a control member, a guide member, a support member, and a clamping member. The control member and the guide member are configured with a delivery channel arranged along the guide direction of the guide member; the support member has a support channel, and the proximal side of the support member is fixedly installed on the guide member, and a fixed channel suitable for assembling the guidewire is arranged in the clamping member; the support channel, the delivery channel, and the fixed channel are coaxially arranged. The utility model delivers the guidewire to the support channel through the delivery channel along the guide direction of the guide member constructed by the control member and the guide member, and the support channel abuts against the proximal part of the supporting guidewire. By increasing the connection limit of the outer periphery of the guidewire, the coaxiality between the guidewire and the guidewire fixing and clamping assembly is improved, so that the guidewire is aligned with the desired direction and introduced toward the intervention area, which can promote the smooth introduction of the guidewire and avoid the problem of guidewire bending.

Description

A guide wire fixing clamping assembly and interventional instrument delivery device

Technical Field

The utility model relates to the technical field of medical instruments, and in particular to a guide wire fixing and clamping component and an interventional instrument delivery device.

Background Art

A guidewire is a device used in many different medical procedures to guide an instrument such as a vascular catheter, a catheter-mounted heart valve, an aortic endograft, an endotracheal tube, or a gastric feeding tube into a patient's body toward a desired location in the patient's body. Guidewires are used in many diagnostic and interventional areas such as diagnostic and interventional cardiology, diagnostic and interventional neuroradiology, diagnostic and interventional radiology, urology, gastroenterology, vascular surgery, minimally invasive vascular interventions such as angioplasty, stenting, thrombolysis, transcatheter aortic valve implantation, and endovascular abdominal aortic aneurysm repair.

When using a guidewire, the doctor can fix the guidewire through the guidewire fixing clamping assembly to control the guidewire's steering direction. The function of the guidewire fixing clamping assembly is to transmit the rotational force and longitudinal (axial) force applied by the doctor to the guidewire fixing clamping assembly to the distal end of the guidewire located inside the patient's body, so that the guidewire is turned to the desired position inside the patient's body.

At present, during the diagnosis and intervention stage, the guide wire can be delivered to the proximal Y valve through the introducer. After the introducer is removed and the guide wire is passed through the Y valve and sent into the human body, the proximal end of the guide wire can be fixed by the guide wire fixing and clamping assembly to control the advancement and rotation of the guide wire. However, due to the good softness of the guide wire material, when the conventional guide wire fixing and clamping assembly is used to operate the guide wire to advance, when the guide wire is hindered by the forward resistance, the proximal part of the guide wire that has not entered the instrument is prone to bend, which increases the difficulty of guide wire intervention and reduces the operability of the guide wire during interventional treatment.

Utility Model Content

The technical problem that the present invention is intended to solve or at least partially solve is that in the related art, when the guide wire encounters an obstacle to its forward movement, the proximal portion of the guide wire that has not entered the instrument is prone to bending, which increases the difficulty of guide wire intervention and reduces the operability of the guide wire during interventional treatment.

In a first aspect, the utility model provides a guide wire fixing and clamping assembly, comprising:

Controls;

A guide member, movably connected to the distal end of the control member; the control member and the guide member are configured with a conveying channel arranged along the guiding direction of the guide member;

A support member, fixedly connected to the distal end of the guide member, the support member having a support channel, the proximal end of the support member fixedly mounted on the guide member, and the distal end of the support member extending in a direction away from the guide member;

And a clamping member, which is installed in an assembly cavity formed by the control member and the guide member, and is slidably configured in the assembly cavity. A fixed channel suitable for assembling the guide wire is provided in the clamping member; the supporting channel, the conveying channel and the fixed channel are coaxially arranged.

As a preferred solution, the clamping member comprises a main body and at least two clamping parts which are fixedly connected to each other, wherein the clamping parts are centrally symmetrically distributed on the distal side of the main body, and the main body and all the clamping parts together enclose the fixed channel.

As a preferred embodiment, an abutment portion is provided on the distal side of the control member, and the abutment portion has a first state in which it abuts against all the clamping portions when the control member and the guide member rotate close to each other, so that all the clamping portions synchronously radially contract around the axial direction of the fixed channel; the abutment portion also has a second state in which it releases the abutment effect on all the clamping portions when the control member and the guide member rotate away from each other, so that all the clamping portions synchronously radially reset around the axial direction of the fixed channel.

Optionally, a force-bearing surface is arranged on a side of any of the clamping portions facing the control member, and the force-bearing surface and the abutting portion are arranged opposite to each other.

As a preferred solution, a guide portion is provided inside the guide member, and the guide portion is constructed on the inner peripheral wall surface of the guide member facing the clamping portion, and in the first state, the guide portion guides and abuts against the clamping portion so that the clamping portion moves toward the axis direction of the fixed channel; and/or

The abutting portion has a slope structure, and the slope structure is arranged on the inner peripheral wall surface at the distal end side of the control member.

Optionally, the distal end of the control member is sleeved in the guide member, and the control member and the guide member are provided with a sliding section and a threaded section, and the threaded section is arranged at the distal end of the sliding section; in the sliding section, the control member and the guide member are slidingly connected; in the threaded section, the control member and the guide member are threadedly rotationally connected.

Optionally, a first threaded portion is provided on the outer peripheral wall surface on the distal end side of the control member, and a second threaded portion is provided on the inner peripheral wall surface on the proximal end side of the guide member, and the first threaded portion and the second threaded portion are conformally connected and matched; and/or

The control member is provided with a limiting portion on the proximal outer circumferential wall surface relative to the first threaded portion, and the guide member is provided with a sliding channel for the limiting portion to slide on the proximal inner circumferential wall surface relative to the second threaded portion, and an elastic stop portion is provided on the proximal inner circumferential wall surface of the sliding channel, and the elastic stop portion is used to stop the limiting portion to limit the sliding stroke of the control member and the guide member.

As a preferred solution, a friction enhancing portion is provided on the outer peripheral wall surface of the control member, and the friction enhancing portion is arranged at the distal end side of the control member and is located outside the assembly cavity.

The control member is provided with an inner cylinder portion, and the inner cylinder portion is suitable for inserting and receiving at least a part of the clamping member; and/or

The guide member is provided with a connecting hole, the support member is provided as a tubular structure, one end of the support member is assembled in the connecting hole, and the connecting hole and the supporting channel are coaxially arranged.

In a second aspect, the utility model provides an interventional instrument delivery device, comprising the above-mentioned guidewire fixing and clamping assembly.

The technical solution provided by the utility model has the following advantages:

1. The guide wire fixing and clamping assembly provided by the utility model comprises a control member, a guide member, a support member and a clamping member, wherein the guide member is movably connected to the distal side of the control member; the control member and the guide member are constructed with a conveying channel arranged along the guiding direction of the guide member; the support member is fixedly connected to the distal side of the guide member, the support member has a supporting channel, the proximal side of the support member is fixedly installed on the guide member, and the distal side of the support member is extended in the direction away from the guide member; the clamping member is installed in an assembly cavity jointly enclosed by the control member and the guide member, the clamping member is slidably configured in the assembly cavity, and a fixed channel suitable for assembling the guide wire is arranged in the clamping member; the supporting channel, the conveying channel and the fixed channel are coaxially arranged.

The guidewire fixing and clamping assembly of this structure conveys the guidewire to the supporting channel through a conveying channel constructed by a control member and a guide member along the guiding direction of the guide member. The supporting channel abuts against the proximal end portion of the supporting guidewire. By increasing the connection limit on the periphery of the guidewire, the coaxiality between the guidewire and the guidewire fixing and clamping assembly is improved, so that the guidewire is aligned in the desired direction and introduced toward the interventional area. This can promote the smooth introduction of the guidewire and avoid the problem of guidewire bending.

2. The guidewire fixing clamping assembly provided by the utility model comprises a clamping member including a main body and at least two clamping parts fixedly connected to each other, the clamping parts are centrally symmetrically distributed on the distal side of the main body, and the main body and all the clamping parts together enclose a fixed channel.

The guidewire fixing and clamping assembly of this structure forms a fixing channel by enclosing the main body and all the clamping parts together to fix the guidewire that is clamped and connected for positioning. The clamping parts are symmetrically distributed on the distal side of the main body to obtain a radially uniformly distributed structure of the clamping parts, thereby ensuring the axial accuracy of the fixing channel.

3. The guidewire fixing clamping assembly provided by the utility model has an abutment portion provided on the distal side of the control member, and the abutment portion has a first state in which it abuts against all the clamping portions when the control member and the guide member rotate close to each other, so that all the clamping portions synchronously contract radially around the axial direction of the fixed channel; the abutment portion also has a second state in which it releases the abutment effect on all the clamping portions when the control member and the guide member rotate away from each other, so that all the clamping portions synchronously reset radially around the axial direction of the fixed channel.

The guide wire fixing and clamping assembly of this structure operates the control member to rotate the control member toward the entry or away from the exit guide member. The clamping member can fix or release the guide wire in the internal fixing channel by the fitting contact or separation between the abutment part and the clamping part. The operation is convenient and the clamping and fixing is stable.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is an exploded schematic diagram of a guide wire fixing and clamping assembly provided by the present invention;

FIG2 is a partial enlarged view of point A in FIG1;

FIG3 is a schematic structural diagram of one embodiment of a guide wire fixing and clamping assembly provided by the utility model;

FIG4 is a cross-sectional schematic diagram of one embodiment of a guide wire fixing and clamping assembly provided by the present invention;

FIG5 is a partial enlarged view of point B in FIG4;

FIG6 is a schematic structural diagram of a second implementation mode of a guide wire fixing and clamping assembly provided by the present invention;

FIG7 is a cross-sectional schematic diagram of a second embodiment of a guidewire fixing and clamping assembly provided by the present invention;

FIG8 is a partial enlarged view of point C in FIG7;

Description of reference numerals:

1-control member; 11-first threaded portion; 12-abutting portion; 121-inclined surface structure; 13-limiting portion; 14-raised portion; 15-friction-increasing portion; 16-inner tube portion; 2-guide member; 21-second threaded portion; 22-guide portion; 23-elastic stop portion; 24-sliding channel; 25-connecting hole; 3-support member; 4-clamping member; 41-main body; 42-clamping portion; 421-force surface.

DETAILED DESCRIPTION

The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connection", "connected", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment provides a guide wire fixing and clamping assembly, which is suitable for pushing, pulling back, clamping and fixing the guide wire, etc., referring to Figures 1 to 8, the guide wire fixing and clamping assembly includes a control member 1, a guide member 2, a support member 3 and a clamping member 4, and the guide member 2 is movably connected to the distal side of the control member 1.

Referring to Fig. 1, Fig. 3 and Fig. 4, the control member 1 and the guide member 2 are configured with a conveying channel arranged along the guiding direction of the guide member 2; the support member 3 is fixedly connected to the distal end side of the guide member 2, the support member 3 has a supporting channel, the proximal end side of the support member 3 is fixedly mounted on the guide member 2, and the distal end side of the support member 3 is extended in a direction away from the guide member 2;

Referring to Fig. 1, the clamping member 4 is installed in the assembly cavity formed by the control member 1 and the guide member 2. The clamping member 4 is slidably configured in the assembly cavity. A fixed channel suitable for assembling the guide wire is provided in the clamping member 4. The supporting channel, the conveying channel and the fixed channel are coaxially arranged.

The guidewire fixing and clamping assembly provided in the present embodiment delivers the guidewire to the supporting channel through a delivery channel constructed by the control member 1 and the guide member 2 along the guiding direction of the guide member 2. The supporting channel abuts against the proximal end portion of the supporting guidewire. By increasing the connection limit on the periphery of the guidewire, the coaxiality between the guidewire and the guidewire fixing and clamping assembly is improved, so that the guidewire is aligned in the desired direction and introduced toward the interventional area. This can promote the smooth introduction of the guidewire and avoid the problem of guidewire bending.

In some embodiments, referring to FIG. 1 , the guide member 2 is provided with a connecting hole 25 , the support member 3 is provided as a tubular structure, one end of the support member 3 is assembled in the connecting hole 25 , and the connecting hole 25 and the supporting channel are coaxially arranged.

In one embodiment, the guide member 2 and the support member 3 are integrally formed; in another embodiment, the guide member 2 and the support member 3 are plug-fitted and fixed by bonding or snapping.

In some embodiments, a clearance fit is provided between the support channel and the guide wire.

As a preferred embodiment, referring to FIG. 5 , the clamping member 4 includes a fixedly connected body 41 and at least two clamping portions 42 , the clamping portions 42 are centrally symmetrically distributed on the distal side of the body 41 , and the body 41 and all the clamping portions 42 together enclose a fixed channel.

The guidewire fixing clamping assembly provided in this embodiment is constructed by the main body 41 and all the clamping parts 42 to form a fixing channel to fix, clamp and connect the positioned guidewire. The clamping parts 42 are symmetrically distributed on the distal side of the main body 41 to obtain a radially uniformly distributed structure of the clamping parts 42 to ensure the axial accuracy of the fixing channel.

Further, referring to FIG5 , the distal end of the control member 1 is provided with an abutment portion 12, which has a first state in which the control member 1 and the guide member 2 are rotated close to each other and abut against all the clamping portions 42, so that all the clamping portions 42 are synchronously radially contracted around the axial direction of the fixed channel; the abutment portion 12 also has a second state in which the abutment effect on all the clamping portions 42 is released when the control member 1 and the guide member 2 are rotated away from each other, so that all the clamping portions 42 are synchronously radially reset around the axial direction of the fixed channel. In the first state, it can be used to clamp the guide wire, and in the second state, it can be pushed in or pulled back to remove the guide wire.

The guidewire fixing and clamping assembly provided in the present embodiment operates the control member 1 to rotate the control member 1 toward or away from the exit guide member 2, and the clamping member 4 can be switched between the first state and the second state by the fitting contact or separation between the abutment portion 12 and the clamping portion 42, thereby fixing or releasing the guidewire in the internal fixing channel. The operation is convenient and the clamping and fixing are stable.

In this embodiment, referring to Fig. 1, three clamping parts 42 are provided, wherein the radial dimension of the clamping part 42 is greater than the radial dimension of the body 41. The clamping part 42 is configured as a clamping petal, and the clamping petal is made of elastic material.

In a specific implementation, the clamping member 4 is configured as an elastic sleeve clamp, which is built into the control member 1 and rests on the distal end of the control member 1 .

In some embodiments, a force-bearing surface 421 is disposed on a side of any clamping portion 42 facing the control member 1 , and the force-bearing surface 421 and the abutting portion 12 are disposed opposite to each other.

As a preferred embodiment, referring to FIG8 , a guide portion 22 is provided in the guide member 2. The guide portion 22 is constructed on the inner peripheral wall surface of the guide member 2 facing the clamping portion 42. In the first state, the guide portion 22 guides and abuts the clamping portion 42 to make the clamping portion 42 move toward the direction close to the axis of the fixed channel. The guide portion 22 has a guide wall surface.

5 , the abutting portion 12 has an inclined surface structure 121, and the inclined surface structure 121 is disposed on the inner peripheral wall surface of the distal end side of the control member 1. The inclined surface structure 121 abuts against the clamping portion to implement radial contraction.

For the twist-controlled operation of the guide wire, the abutment portion 12 in the control member 1 can be first moved toward the distal end close to the clamping member 4. After the clamping portion 42 of the clamping member 4 abuts against the inner circumferential wall of the guide member 2, the inclined surface structure 121 of the abutment portion 12 and the guide wall of the guide portion 22 jointly squeeze the clamping portion 42, causing the clamping portion 42 to radially contract to abut and clamp the guide wire. In this state, the radial size of the fixed channel is reduced.

Of course, in the above description, the clamping portion 42 can move in the radial direction deviating from the fixed channel under the extrusion contact action of the abutment portion 12 and the guide portion 22, and the clamping portion 42 can move axially along the axial direction of the fixed channel. Under the extrusion contact action of the abutment portion 12 and the guide portion 22, the clamping portion 42 can achieve radial contraction to reduce the radial size of the fixed channel.

In some embodiments, the proximal end of the control member 1 is sleeved in the guide member 2, and the control member 1 and the guide member 2 are provided with a sliding section and a threaded section, and the threaded section is disposed at the distal end of the sliding section.

3 to 5 , in the sliding section, the control member 1 and the guide member 2 are slidably connected, and the control member 1 can push the clamping member 4 to move toward the distal end side of the guide member 2 .

6 to 8 , in the threaded section, the control member 1 and the guide member 2 are threadedly connected, and the control member 1 pushes the clamping member 4 to continue moving toward the distal end of the guide member 2 by spiral rotation, so that the clamping portion 42 of the clamping member 4 is radially contracted.

In some embodiments, referring to FIG. 8 , a first threaded portion 11 is provided on the outer circumferential wall surface on the distal end of the control member 1 , and a second threaded portion 21 is provided on the inner circumferential wall surface on the proximal end of the guide member 2 , and the first threaded portion 11 and the second threaded portion 21 are conformally connected and matched.

The guidewire fixing and clamping assembly provided in this embodiment can convert the spiral rotation between the control member 1 and the guide member 2 into axial movement and rotation around the axial direction of the abutment portion 12, and then convert the movement of the abutment portion 12 into radial movement of the clamping flap, so as to achieve clamping and fixation of the guidewire in the fixed channel.

Referring to FIG. 5 , the control member 1 is provided with a limit portion 13 on the proximal outer peripheral wall surface relative to the first threaded portion 11, and the guide member 2 is provided with a sliding channel 24 on the proximal inner peripheral wall surface relative to the second threaded portion 21 for the limit portion 13 to slide, and an elastic stop portion 23 is provided on the proximal inner peripheral wall surface of the sliding channel 24, and the elastic stop portion 23 is used to stop the limit portion 13 to limit the sliding stroke of the control member 1 and the guide member 2.

Under the action of external force, the limiting portion 13 can abut against the elastic stop portion 23 , so that the elastic stop portion 23 is squeezed and deformed, and then the control member 1 can slide into or out of the guide member 2 .

As a preferred solution, referring to FIG. 2 and FIG. 5 , a protrusion 14 and a friction-enhancing portion 15 are provided on the outer peripheral wall of the control member 1, the protrusion 14 is provided outside the assembly cavity; the protrusion 14 and the proximal side of the guide member 2 are provided at intervals; the friction-enhancing portion 15 is provided on the side of the protrusion 14 away from the guide member 2. The friction-enhancing portion 15 increases the friction force of the operator contacting the rear end of the control member 1. In some embodiments, the friction-enhancing portion 15 is provided as a damping bump or a concave groove, such as a bump or a groove formed by frosting of the ribs.

In this embodiment, referring to FIG5 , the control member 1 is provided with an inner cylinder 16, which is suitable for inserting and receiving at least a part of the clamping member 4. Specifically, the body 41 of the clamping member 4 and the inner cylinder 16 are rotatably arranged, and the rotation of the body 41 is driven by an external force to drive the clamping flap and the guide wire in the fixed channel to rotate, wherein the torsion-controlled rotation of the guide wire needs to overcome the rotation resistance of the control member 1 and the guide member 2 to the clamping flap.

Example 2

This embodiment provides an interventional instrument delivery device, including the guidewire fixing and clamping assembly of Example 1.

The interventional instrument delivery device is equipped with a guidewire fixing and clamping assembly to deliver the guidewire to the supporting channel through a delivery channel constructed by the control member 1 and the guide member 2 along the guiding direction of the guide member 2. The supporting channel abuts against the proximal end of the supporting guidewire. By increasing the connection limit on the periphery of the guidewire, the coaxiality between the guidewire and the guidewire fixing and clamping assembly is improved, so that the guidewire is aligned in the desired direction and introduced toward the interventional area. This can promote the smooth introduction of the guidewire and avoid the problem of guidewire bending.

The interventional instrument delivery device clamps the guide wire through the guide wire fixing clamping assembly, and slides the auxiliary medical or diagnostic interventional instrument onto the guide wire to implement intervention along the distal direction of the guide wire.

Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims (10)

1. A guidewire fixation clamp assembly, comprising:

a control member (1);

A guide member (2) movably connected to the distal end side of the control member (1); the control element (1) and the guide element (2) are provided with a conveying channel arranged along the guiding direction of the guide element (2);

The support piece (3) is fixedly connected to the distal end side of the guide piece (2), the support piece (3) is provided with a support channel, the proximal end side of the support piece (3) is fixedly arranged on the guide piece (2), and the distal end side of the support piece (3) extends towards the direction away from the guide piece (2);

The clamping piece (4) is arranged in an assembly cavity formed by the joint enclosing of the control piece (1) and the guide piece (2), the clamping piece (4) is arranged in the assembly cavity in a sliding mode, and a fixing channel suitable for assembling a guide wire is arranged in the clamping piece (4); the support channel, the conveying channel and the fixing channel are coaxially arranged.

2. The guide wire fixing and clamping assembly according to claim 1, wherein the clamping member (4) comprises a body (41) and at least two clamping portions (42) which are fixedly connected, the clamping portions (42) are centrally and symmetrically distributed on the distal end side of the body (41), and the body (41) and all the clamping portions (42) jointly enclose to form the fixing channel.

3. The guidewire fixation clamp assembly according to claim 2, characterized in that the distal side of the control member (1) is provided with an abutment portion (12), the abutment portion (12) having a first state of abutting against all the clamp portions (42) when the control member (1) and the guide member (2) are rotationally brought close together, so that all the clamp portions (42) are radially contracted simultaneously about the axial direction of the fixation channel; the abutment portion (12) also has a second state in which the abutment action on all the clamping portions (42) is released when the control member (1) and the guide member (2) are rotated away from each other, so that all the clamping portions (42) are synchronously radially reset around the axial direction of the fixed passage.

4. A guide wire fixing and clamping assembly according to claim 3, wherein a stress surface (421) is arranged on one side of any clamping portion (42) facing the control member (1), and the stress surface (421) and the abutting portion (12) are correspondingly arranged in opposite directions.

5. The guide wire fixing clamp assembly according to claim 4, wherein a guide part (22) is arranged in the guide piece (2), the guide part (22) is configured on an inner peripheral wall surface of the guide piece (2) facing the clamp part (42), and in the first state, the guide part (22) is in guide contact with the clamp part (42) so as to enable the clamp part (42) to move towards an axial direction close to the fixing channel; and/or

The abutting portion (12) has a slope structure (121), and the slope structure (121) is disposed on an inner peripheral wall surface of the distal end side of the control member (1).

6. The guidewire fixation clamp assembly according to any one of claims 1-5, wherein the control member (1) is distally sleeved in the guide member (2), the control member (1) and the guide member (2) being configured with a sliding section and a threaded section, the threaded section being disposed at the distal end of the sliding section; in the sliding section, the control member (1) and the guide member (2) are slidingly connected; in the thread section, the control element (1) and the guide element (2) are connected in a threaded and rotating manner.

7. The guide wire fixing and clamping assembly according to claim 6, wherein a first threaded portion (11) is arranged on the outer peripheral wall surface of the distal end side of the control member (1), a second threaded portion (21) is arranged on the inner peripheral wall surface of the proximal end side of the guide member (2), and the first threaded portion (11) and the second threaded portion (21) are in conformal connection and fit; and/or

The control piece (1) is provided with a limiting part (13) on the outer peripheral wall surface of the proximal end relative to the first threaded part (11), the guide piece (2) is provided with a sliding channel (24) which can enable the limiting part (13) to slide on the inner peripheral wall surface of the proximal end relative to the second threaded part (21), the inner peripheral wall surface of the proximal end side of the sliding channel (24) is provided with an elastic stop part (23), and the elastic stop part (23) is used for stopping the limiting part (13) so as to limit the sliding stroke of the control piece (1) and the guide piece (2).

8. The guide wire fixing and clamping assembly according to claim 6, wherein a friction increasing portion (15) is arranged on the peripheral wall surface of the control member (1), and the friction increasing portion (15) is arranged on the distal end side of the control member (1) and located outside the assembly cavity.

9. Guide wire fixing clamp assembly according to any one of claims 1-5, characterized in that an inner barrel (16) is provided in the control member (1), the inner barrel (16) being adapted to receive at least part of the clamping member (4) in a plug-in manner; and/or

The guide piece (2) is provided with a connecting hole (25), the support piece (3) is of a tube body structure, one end of the support piece (3) is assembled in the connecting hole (25), and the connecting hole (25) and the support channel are coaxially arranged.

10. An interventional instrument delivery device comprising the guidewire fixation clamp assembly of any one of claims 1-9.