Direction guiding device of thrombus extraction catheter

Abstract

A direction guiding device of a thrombus extraction catheter mainly comprises a control unit and a restraining piece connected with the control unit. Wherein the control unit is provided with a sliding block, the restraining pieces are connected with the sliding block, or the sliding block is provided with a swinging piece, the swinging piece is connected with the first restraining piece and the second restraining piece, the restraining pieces and the thrombus extraction catheter are arranged side by side and are wrapped on an outer cover tube body, and one end of each restraining piece is positioned at the front end part of the outer cover tube body. And a method therefor; the control unit can be used for simply operating the front-back displacement of the sliding block or the left-right swinging of the swinging piece, so that the restraining piece is driven to restrain the linkage outer cover pipe body to be bent at different angles, and the aim of synchronously bending the far end of the thrombus extraction catheter is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a direction guiding device of thrombus extraction catheter, especially a direction guiding device of thrombus extraction catheter which can bend the distal end of the thrombus extraction catheter synchronously through simple operation, facilitating the thrombus extraction medical operation. BACKGROUND

[0002] Thrombus formation in blood vessels is a dangerous condition in medicine, which can lead to serious consequences such as stroke and myocardial infarction. Therefore, the medical community has been working to develop more effective methods and devices to effectively remove thrombus attached to the inner wall of blood vessels and restore normal blood flow. The current method for treating thrombus is mainly drug therapy and surgical operation. Among them, the surgical operation is physical thrombus extraction, the thrombus extraction catheter is inserted into the patient's femoral artery blood vessel, and then under the guidance of X-ray image, the thrombus extraction catheter is deeply inserted into the thrombus position of the patient, a strong negative pressure is generated in the blood vessel cavity by using the Bernoulli principle, after the thrombus structure is damaged by local water injection, the scattered thrombus fragments will be sucked into the thrombus extraction catheter along the direction of negative pressure, and the thrombus fragments will not drift to a distant place to cause harm.

[0003] The existing physical thrombus extraction, as shown in Figure 11 After the thrombus extraction catheter 1 is inserted into the blood vessel 2, it needs to travel along the blood vessel 2 to the position of the thrombus 3, and then as shown in Figure 12 The thrombus 3 is sucked into the thrombus extraction catheter 1 along the direction of negative pressure and taken out of the patient's body. However, since the blood vessels 2 of the human body are not straight but curved and bent, although the thrombus extraction catheter 1 has different sizes for selection, in clinical practice, the thrombus extraction catheter 1 often gets stuck at the turning of the blood vessel 2 and is difficult to pass through, affecting the thrombus extraction operation.

[0004] Therefore, the applicant has designed a direction guiding device of thrombus extraction catheter through continuous research and experiment, which can bend the distal end of the thrombus extraction catheter synchronously through simple operation, facilitating the thrombus extraction medical operation. CONTENT OF THE UTILITY MODEL

[0005] The main purpose of the utility model is to provide a direction guiding device of thrombus extraction catheter, which can bend the distal end of the thrombus extraction catheter synchronously through simple operation during the thrombus extraction operation, so that the thrombus extraction catheter can pass through the curved blood vessel, and the thrombus extraction medical operation is facilitated.

[0006] A direction guiding device of a thrombus extraction catheter, comprising a control unit and a first restraining member connected to the control unit, characterized in that the control unit is provided with a sliding block; the first restraining member is juxtaposed with the thrombus extraction catheter and is covered by an outer sheath pipe; one end of the first restraining member is connected to the sliding block and the other end is positioned at the front end of the outer sheath pipe; thus, the forward and backward displacement of the sliding block can be operated by the control unit, thereby driving the first restraining member to link and restrain the outer sheath pipe to bend at different angles, so as to achieve the purpose of synchronous bending of the distal end of the thrombus extraction catheter.

[0007] The aforementioned direction guiding device of a thrombus extraction catheter, wherein the control unit is provided with a seat body, a sliding groove is arranged on the seat body, and the sliding block is arranged in the sliding groove, so that the sliding block can move along the sliding groove to drive the first restraining member to link and restrain the outer sheath pipe to bend at different angles.

[0008] A direction guiding device of a thrombus extraction catheter, comprising a control unit and a second restraining member and a third restraining member connected to the control unit, wherein the control unit is provided with a sliding block and a swing member pivoted to the sliding block; the second restraining member and the third restraining member are juxtaposed with the thrombus extraction catheter and are covered by an outer sheath pipe; one end of the second restraining member and the third restraining member is respectively connected to the swing member, and the other end is positioned at the front end of the outer sheath pipe; thus, the left and right swinging of the swing member can be operated by the control unit, thereby driving the second restraining member and the third restraining member to link and restrain the outer sheath pipe to bend at different angles, so as to achieve the purpose of synchronous bending of the distal end of the thrombus extraction catheter.

[0009] The aforementioned direction guiding device of a thrombus extraction catheter, wherein the control unit is provided with a seat body, a sliding groove is arranged on the seat body, and the sliding block is arranged in the sliding groove.

[0010] The aforementioned direction guiding device of a thrombus extraction catheter, wherein a notch is arranged above the sliding block, and a circular portion is arranged at the center of the swing member, so that the circular portion can be arranged on the notch, and the swing member can swing left and right around the circular portion to drive the second restraining member and the third restraining member to link and restrain the outer sheath pipe to bend at different angles.

[0011] The aforementioned direction guiding device of a thrombus extraction catheter, wherein the swing member is locked with a knob, and the left and right swinging of the swing member is driven by the rotation of the knob.

[0012] The aforementioned direction guiding device of a thrombus extraction catheter, wherein two ends of the swing member are provided with a first connecting rod and a second connecting rod, one end of the second restraining member and the third restraining member is respectively connected to the first connecting rod and the second connecting rod, and the other end is arranged outside the seat body and is juxtaposed with the thrombus extraction catheter and covered by an outer sheath pipe, so that the other end of the second restraining member and the third restraining member is positioned at the front end of the outer sheath pipe. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be explained in further detail below in combination with the drawings and specific embodiments.

[0014] Figure 1 It is the perspective view of the utility model;

[0015] Figure 2 It is the perspective exploded view of the utility model;

[0016] Figure 3 It is the sectional view of the utility model;

[0017] Figure 4 It is the action state diagram of the utility model;

[0018] Figure 5 It is the perspective view of the second embodiment of the utility model;

[0019] Figure 6 It is the perspective exploded view of the second embodiment of the utility model;

[0020] Figure 7 It is the plan view of the second embodiment of the utility model;

[0021] Figure 8 It is the sectional view of the second embodiment of the utility model;

[0022] Figure 9 It is the action state diagram of the second embodiment of the utility model;

[0023] Figure 10 It is another action state diagram of the second embodiment of the utility model;

[0024] Figure 11 And Figure 12 It is the existing thrombus extraction catheter extraction curve action diagram.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1, thrombus extraction catheter;

[0027] 2, blood vessel;

[0028] 3, thrombus;

[0029] 4, control unit;

[0030] 41, seat body;

[0031] 411, sliding groove;

[0032] 42, sliding block;

[0033] 420, bottom;

[0034] 421, notch;

[0035] 422 screw hole;

[0036] 43 swing member;

[0037] 431 circular portion;

[0038] 432 through hole;

[0039] 433 fixing hole;

[0040] 44 fixing member;

[0041] 45 knob;

[0042] 46 first link;

[0043] 461 through hole;

[0044] 462 fixing member;

[0045] 47 second link;

[0046] 471 through hole;

[0047] 472 fixing member;

[0048] 5 first restraining member;

[0049] 6 control knob;

[0050] 61 fixing hole;

[0051] 62 fixing member;

[0052] 7 outer cover tube;

[0053] 8 second restraining member;

[0054] 9 third restraining member. DETAILED DESCRIPTION

[0055] Please refer to Figure 1 and Figure 2 together with Figure 3As shown in the figure, the utility model includes a control unit 4 and a first restraining member 5 connected to the control unit 4. The control unit 4 is provided with a seat body 41, and a sliding groove 411 is arranged on the seat body 41, so that a sliding block 42 is arranged in the sliding groove 411, and the sliding block 42 can move along the sliding groove 411. An arc-shaped notch 421 is arranged on the upper side of the sliding block 42, and a threaded hole 422 is arranged in the notch 421. The bottom 420 of the sliding block 42 is in the shape of an inverted T, so that the bottom 420 of the inverted T can be embedded in the sliding groove 411, and the extension segments on both sides of the upper edge constitute a limiting part. A control knob 6 with a fixing hole 61 is arranged on the upper side of the sliding block 42, and a fixing member 62 is arranged in the fixing hole 61 and locked in the threaded hole 422 of the sliding block 42, so that the control knob 6 is fixed on the upper side of the sliding block 42.

[0056] One end of the first restraining member 5 is connected to the sliding block 42, and the other end is arranged in the front edge of the seat body 41 and is arranged in the thrombus extraction catheter 1, and is covered by an outer cover pipe body 7, so that the other end is positioned at the front end of the outer cover pipe body 7. In this embodiment, the first restraining member 5 is a wire body, and the front end of the outer cover pipe body 7 is made of flexible material.

[0057] Through the combination of the above-mentioned components, a direction guiding device of the thrombus extraction catheter is formed. When the thrombus extraction operation is performed, the control knob 6 of the control unit 4 can be used to simply control the sliding block 42 to move back and forth along the sliding groove 411, and then the first restraining member 5 is connected to the sliding block 42, so that the outer cover pipe body 7 is driven to bend at different angles in one direction, so as to achieve the purpose of synchronous bending of the distal end of the thrombus extraction catheter 1. When the bending in different directions is needed, the control unit 4 can be turned over.

[0058] Please refer to Figure 4 , the action state diagram of the utility model. Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 10 , Figure 11As shown in the figure, the utility model for use, such as existing thrombus extraction operation, the outer cover pipe body 7 that has been covered with thrombus extraction catheter 1 and juxtaposed first holding member 5 is placed into the arterial blood vessel of patient.And when encountering the bending section of blood vessel 2, medical staff can make the slider 42 move back and forth along the sliding groove 411 by operating the control knob 6, and then link the first holding member 5, and then control the outer cover pipe body 7 and thrombus extraction catheter 1 to bend at different angles. Among them, as in the embodiment, when the control knob 6 moves back, the first holding member 5 will be pulled back, and since the front end of the outer cover pipe body 7 is of flexible material, the front end will bend due to the back pull of the first holding member 5. When the control knob 6 moves forward to return to the original position, the outer cover pipe body 7 and the thrombus extraction catheter 1 return to the straight state. In this way, the thrombus extraction catheter 1 can bypass the turning place of the blood vessel 2 when advancing in the blood vessel 2, avoiding being stuck in the turning place and being difficult to pass through, so that the thrombus extraction operation can be more smooth.

[0059] Please refer to Figure 5 and Figure 6 , and cooperate with Figure 7 and Figure 8 , the utility model is the perspective view and perspective exploded view and plan view, sectional view of second embodiment. As shown in the figure, the utility model second embodiment includes a control unit 4 and the second holding member 8, third holding member 9 connected with the control unit 4. Among them, the control unit 4 is provided with a seat 41, is provided with a sliding groove 411 in the seat 41, so that a slider 42 is placed in the sliding groove 411, so that the slider 42 can move along the sliding groove 411. The upper portion of the slider 42 is provided with a notch 421 with arc-shaped ends, and a threaded hole 422 is arranged in the notch 421. In the embodiment, the upper edges of the sliding groove 411 are arranged to extend inward, and the bottom 420 of the slider 42 is arranged in an inverted T shape, so that the inverted T-shaped bottom 420 can be embedded in the sliding groove 411, and the extension segments on both sides of the upper edge constitute a limit.

[0060] Two swing members 43 are placed in the notch 421, the central part of the swing member 43 is arranged as a circular part 431, a through hole 432 is arranged in the circular part 431, and a fixing hole 433 is arranged at both ends respectively.

[0061] The two swing members 43 are locked in the threaded hole 422 of the slider 42 by a fixing member 44 penetrating a knob 45, so that the circular part 431 can be placed on the notch 421, and the knob 45 can be located above the swing member 43. When the knob 45 rotates left and right, the two swing members 43 can swing left and right in the same direction with the fixing member 44 and the circular part 431 as the axis.

[0062] A first connecting rod 46 and a second connecting rod 47, one end of which is respectively provided with a through hole 461 and a through hole 471, so that the fixing member 462 and the fixing member 472 are arranged through the fixing hole 433 of the two swing members 43, and then arranged through the through hole 461 and the through hole 471, so that the first connecting rod 46 and the second connecting rod 47 are positioned between the two swing members 43, and when the two swing members 43 swing, the first connecting rod 46 and the second connecting rod 47 can be simultaneously driven to constitute forward pushing or rear pulling.

[0063] One end of the second restraining member 8 and the third restraining member 9 is connected to the first connecting rod 46 and the second connecting rod 47, and the other end is arranged through the front edge of the seat body 41 and is placed with the thrombus extraction catheter 1, and is covered in the outer cover pipe body 7, so that the other end is positioned at the front end of the outer cover pipe body 7. In this embodiment, the second restraining member 8 and the third restraining member 9 are wire bodies; the front end of the outer cover pipe body 7 is flexible material.

[0064] Through the combination of the above-mentioned components, the direction guiding device of the thrombus extraction catheter is formed. When the thrombus extraction operation is performed, the knob 45 of the operation unit 4 is used to easily operate the swing of the swing member 43, and then the first connecting rod 46 and the second connecting rod 47 are connected to the first connecting rod 46 and the second connecting rod 47, and the second restraining member 8 and the third restraining member 9 connected to the first connecting rod 46 and the second connecting rod 47, and the outer cover pipe body 7 is driven by the second restraining member 8 and the third restraining member 9 to bend in different angles in the left and right directions, so as to achieve the purpose of synchronous bending of the distal end of the thrombus extraction catheter 1.

[0065] Please refer to Figure 9 , the action state diagram of the second embodiment of the utility model. Please cooperate Figure 11 and Figure 12 As shown in the figure, when the utility model is used, like the existing thrombus extraction operation, the outer cover pipe body 7 covered with the thrombus extraction catheter 1 and placed with the second restraining member 8 and the third restraining member 9 is arranged in the arterial blood vessel of the patient. When the bending section of the blood vessel 2 is encountered, the medical staff can appropriately adjust the positions of the second restraining member 8 and the third restraining member 9 by moving the sliding block 42 along the sliding groove 411, and control the outer cover pipe body 7 to bend in different angles by rotating the knob 45, and then control the outer cover pipe body 7 and the thrombus extraction catheter 1 to bend in different angles. Among them, when the knob 45 is rotated to the left in this embodiment, the first connecting rod 46 will be pulled backward, and the second connecting rod 47 will be pushed forward, so that the second restraining member 8 is pulled backward and the third restraining member 9 is pushed forward. Because the front end of the outer cover pipe body 7 is flexible material, the front end will bend to the left due to the backward pulling of the second restraining member 8. In this way, when the thrombus extraction catheter 1 travels in the blood vessel 2, it can bypass the turning place of the blood vessel 2, avoid being stuck in the turning place and be difficult to pass through, so that the thrombus extraction operation can be more smoothly.

[0066] Please refer to Figure 10, please cooperate with Figure 11 and Figure 12 As shown in the figure, when the knob 45 is turned to the right, the second connecting rod 47 will be pulled backward, and the first connecting rod 46 will be pushed forward, so that the third pulling member 9 is pulled backward and the second pulling member 8 is pushed forward. Since the front end of the outer cover pipe body 7 is made of flexible material, the front end will be bent to the right due to the backward pulling of the third pulling member 9. Therefore, when the thrombus extraction catheter 1 travels in the blood vessel 2, it can bypass the turning part of the blood vessel 2, avoiding being stuck in the turning part and being difficult to pass through, so that the thrombus extraction operation can be more smooth.

[0067] The foregoing embodiments are only preferred embodiments of the utility model, not limit the scope of the utility model, through slight modification, change, still not lose the gist of the utility model, also not deviate from the spirit and scope of the utility model.

[0068] In summary, the utility model is provided with a sliding groove and a sliding block, and the pulling member is connected to the sliding block and placed with the thrombus extraction catheter, which constitutes a direction guiding device of the thrombus extraction catheter. When the thrombus extraction catheter is used in the thrombus extraction operation, the distal end of the thrombus extraction catheter can be bent synchronously through simple operation, so that the thrombus extraction catheter is beneficial to pass through the bent blood vessel, and further beneficial to the thrombus extraction medical operation. It is a practical design and belongs to a novel creation.

Claims

1. A directional guide device for a thrombus extraction catheter, comprising a steering unit and a first restraining member connected to the steering unit, characterized in that, The control unit is provided with a sliding block; the first restraining member is juxtaposed with the thrombus extraction catheter and is covered by an outer sheath pipe; one end of the first restraining member is connected to the sliding block and the other end is positioned at the front end of the outer sheath pipe.

2. The directional guide of a thrombus aspiration catheter of claim 1, wherein, The control unit is provided with a seat, and a sliding groove is arranged on the seat, and the sliding block is arranged in the sliding groove.

3. A directional guide device for a thrombus extraction catheter, comprising a steering unit and a second restraining member and a third restraining member connected to the steering unit, characterized in that The control unit is provided with a sliding block and a swing member pivoted to the sliding block; the second and third restraining members are juxtaposed with the thrombus extraction catheter and are covered by an outer sheath pipe; one end of the second and third restraining members is respectively connected to the swing member and the other end is positioned at the front end of the outer sheath pipe.

4. The directional guide of a thrombus aspiration catheter of claim 3, wherein, The control unit is provided with a seat, and a sliding groove is arranged on the seat, and the sliding block is arranged in the sliding groove.

5. The directional guide of a thrombus aspiration catheter of claim 3, wherein, A notch is arranged above the sliding block, and a circular portion is arranged in the center of the swing member, and the circular portion is pivoted to the notch.

6. The directional guide of a thrombus aspiration catheter of claim 3, wherein, The swing member is locked with a knob, and the knob is rotated to drive the swing member to swing left and right.

7. The directional guide of a thrombus aspiration catheter of claim 3, wherein, Both ends of the swing member are provided with a first connecting rod and a second connecting rod, and one end of the second and third restraining members is respectively connected to the first and second connecting rods.

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