Guide wire fixer and guide wire fixing method

Abstract

The invention discloses a guide wire fixer which comprises a base and an extension part extending from the base in different directions, a first accommodating groove is formed in the base, a second accommodating groove is formed in the extension part, and openings of the first accommodating groove and the second accommodating groove face opposite directions. According to the guide wire fixator, different parts of the guide wire are contained in the two containing grooves with the opposite opening directions, so that the inner walls of the containing grooves generate acting force in the opposite directions on the different parts of the guide wire, the guide wire is fixed, and damage to the guide wire caused by a traditional clamping mode is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a surgical guide wire fixer and a method for fixing a guide wire using the fixer. Meanwhile, the guide wire in the present application can be replaced by a catheter. Background Art

[0002] The guidewire is one of the basic medical devices commonly used in interventional surgery. The guidewire is soft and elastic as a whole. When in use, it is inserted into the patient's body and observed with the laparoscope. Then the physician grasps the guidewire outside the body to control the operation. In clinical work, when performing interventional operations, different guidewires are required for follow-up for different lesions, so the guidewire needs to be replaced constantly. Because the guidewire is generally long and may exceed the sterile surgical area and cause guidewire contamination, an additional assistant is often required to assist. The guidewire is coiled into a ring with a diameter of 10cm-20cm and held by hand to suppress it from bouncing. If there is no assistant, it needs to be pressed on the instrument table by an object to prevent the guidewire from bouncing. The catheter is used with the guidewire, and it is long, so it also needs to be coiled into a ring to prevent contamination.

[0003] The above situation will currently cause the following problems:

[0004] 1. After the guide wire is unpacked, it is generally necessary to soak it in heparin saline. Currently, most gauze is used to fix the guide wire loop, and the gauze removal steps are cumbersome, which affects the progress of the operation;

[0005] 2. When the wire guide loop is wrapped with gauze, there is a risk of slippage, so it needs to be placed in a square basin with a fixed slot when soaking. This square basin is expensive and large in size, and more saline is needed to cover the wire guide;

[0006] 3. After replacing the guide wire, if the guide wire loop is pressed on the instrument table with other objects, it is easy to cause the guide wire loop to bounce or slip, which may cause damage or contamination to the guide wire, resulting in irreparable adverse consequences;

[0007] 4. Because the guide wires are very thin and similar in color, they are parallel and entangled with each other, making it difficult for the operator to quickly and accurately pick up the target guide wire.

[0008] Therefore, it is necessary to study how to fix the guide wire and the catheter to avoid the guide wire loop and the catheter loop from slipping, even bouncing or sliding off, causing damage or contamination to the guide wire and the catheter; to prevent the guide wire from slipping during fixation, thereby reducing the volume of the saline basin and the use of saline, saving use costs, and reducing medical waste; to be able to quickly find the target guide wire, the fixator is simple to operate, and the surgical efficiency is improved. This is the problem that needs to be solved at present.

[0009] Guidewire holders also appear in existing patents, such as patent CN201920224019.2, a disposable guidewire holder, patent CN200920030832.2, a clamp-type guidewire catheter holder, patent CN202022679407.5, a guidewire assembly and a guidewire fixing clamp for clamping the guidewire, etc. Although these patents all disclose holders for fixing the guidewire, they all clamp the guidewire in a clamping manner. Even if some patents use flexible materials on the contact surface, the contralateral clamping method at the same position will still cause irreversible damage to the guidewire.

[0010] The disclosure of the above background technology content is only used to assist in understanding the inventive concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed before the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0011] In view of this, in order to overcome the defects of the prior art, an object of the present invention is to provide an improved guide wire fixator, which can fix the guide wire without clamping or damaging the guide wire.

[0012] In order to achieve the above object, the present invention adopts the following technical solutions:

[0013] A guide wire fixer comprises a base and an extension portion extending from the base in different directions, wherein the base is provided with a first receiving groove, the extension portion is provided with a second receiving groove, and the openings of the first receiving groove and the second receiving groove face opposite directions.

[0014] Preferably, the bottom of the second accommodating groove is arc-shaped; the length direction of the first accommodating groove is the direction of the connection line between the two second accommodating grooves.

[0015] According to some preferred implementation aspects of the present invention, the extension portion includes a connecting portion and a blocking portion, the connecting portion is connected between the blocking portion and the base, and the second receiving groove is arranged on the blocking portion. The blocking portion is extended to both sides of the base through the connecting portion to fix different parts of the guide wire.

[0016] According to some preferred embodiments of the present invention, the extension portion includes a first extension portion and a second extension portion, the connecting portion of the first extension portion and the connecting portion of the second extension portion extend in opposite directions; the blocking portion of the first extension portion and the blocking portion of the second extension portion extend in opposite directions. Each extension portion is formed in a form similar to a hook portion. The places where the connecting portion of the first extension portion and the connecting portion of the second extension portion are connected to the base are located at both ends of the same radial direction of the base.

[0017] According to some preferred implementation aspects of the present invention, the opening direction of the second receiving groove on the blocking portion of the first extension portion and the second receiving groove on the blocking portion of the second extension portion are the same, and opposite to the opening direction of the first receiving groove. That is, the force directions of the two second receiving grooves acting on the guide wire are the same, but they act on different parts of the guide wire, and are opposite to the force direction of the first receiving groove acting on the guide wire, thereby achieving fixation of the guide wire.

[0018] According to some preferred implementation aspects of the present invention, the first accommodating groove, the second accommodating groove on the blocking portion of the first extending portion, and the second accommodating groove on the blocking portion of the second extending portion are located in the same vertical plane.

[0019] According to some preferred implementation aspects of the present invention, the base is circular in configuration, and the vertical plane passes through the center of the circular base, that is, the first accommodating groove is opened along the radial direction of the base.

[0020] According to some preferred implementation aspects of the present invention, the depth of the first receiving groove is less than or equal to half the thickness of the base; and / or the depth of the second receiving groove is less than or equal to half the thickness of the blocking portion.

[0021] Preferably, the depth of the first accommodating groove is less than half of the thickness of the base; the depth of the second accommodating groove is less than half of the thickness of the blocking portion, so as to better act on the guide wire to fix the guide wire.

[0022] According to some preferred implementation aspects of the present invention, a cross-sectional dimension of the blocking portion gradually decreases from a direction close to the connecting portion to a direction away from the connecting portion.

[0023] According to some preferred implementation aspects of the present invention, the blocking portion has an auxiliary portion extending toward the base, and the auxiliary portion is used to assist the guide wire to slide into the second receiving groove.

[0024] According to some preferred implementation aspects of the present invention, the auxiliary portion is arranged to have an arc-shaped surface, and a cross-sectional size of the auxiliary portion gradually decreases from the blocking portion toward the base.

[0025] According to some preferred implementation aspects of the present invention, the auxiliary portion is spherical.

[0026] According to some preferred implementation aspects of the present invention, the guidewire fixator is integrally formed.

[0027] The present invention also provides a method for fixing a guide wire using the guide wire fixer as described above, comprising the following steps: after the guide wire is coiled into a ring, it enters the space between a blocking part and a base, and the guide wire is accommodated in the second accommodating groove of one of the blocking parts and the first accommodating groove, and then the guide wire is slid into the second accommodating groove of the other blocking part through the auxiliary part, and the guide wire is fixed. The first accommodating groove has a first direction of action on the first position of the guide wire, and on both sides of the first position, the two second accommodating grooves have a second direction of action on the second position of the guide wire, thereby achieving the fixation of the guide wire. The two second positions are symmetrically distributed on both sides of the first position.

[0028] Due to the adoption of the above technical solution, compared with the prior art, the benefit of the present invention lies in that: the guide wire fixer of the present invention accommodates different parts of the guide wire in two accommodating grooves with opposite opening directions, so that the inner walls of the accommodating grooves exert forces in opposite directions on different parts of the guide wire, thereby fixing the guide wire and avoiding damage to the guide wire caused by traditional clamping methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of a guide wire holder in a preferred embodiment of the present invention;

[0031] Figure 2 It is a schematic diagram of the three-dimensional structure of the guidewire fixator in another viewing angle in a preferred embodiment of the present invention;

[0032] Figure 3 It is a schematic diagram of the main structure of the guide wire holder in a preferred embodiment of the present invention;

[0033] Figure 4 It is a rear view structural schematic diagram of a guide wire fixator in a preferred embodiment of the present invention;

[0034] Figure 5 It is a bottom view structural schematic diagram of a guide wire holder in a preferred embodiment of the present invention;

[0035] Figure 6 It is a right side structural schematic diagram of a guide wire holder in a preferred embodiment of the present invention;

[0036] Figure 7 It is a schematic diagram of the main structure of a guide wire holder in another preferred embodiment of the present invention;

[0037] In the accompanying drawings, there are guide wire holder-1, base-2, extension part-3, first extension part-31, second extension part-32, first accommodating groove-41, second accommodating groove-42, connecting part-51, blocking part-52, and auxiliary part-53. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0039] The surgical guidewire and catheter fixer of the present invention is used to solve the problem that the fixers in the prior art are all fixed by clamping, which easily causes damage to the guidewire or catheter; at the same time, it can effectively prevent the guidewire loop from slipping, reduce the cost of using the guidewire basin and saline, and reduce medical waste; and can quickly identify the target guidewire through the coding and color of the fixer, thereby improving surgical efficiency.

[0040] Example 1 Guidewire Fixator 1

[0041] like Figure 1-6 As shown, the guide wire holder 1 in this embodiment includes a base 2 and an extension 3 extending from the base 2 in different directions. The base 2 is provided with a first receiving groove 41, and the extension 3 is provided with a second receiving groove 42. The openings of the first receiving groove 41 and the second receiving groove 42 face opposite directions. The bottom of the second receiving groove 42 is an arc-shaped setting; the length direction of the first receiving groove 41 is the direction of the line between the two receiving grooves. The guide wire holder 1 is an integral injection molding setting, and a number can be integrally molded on the base 2. At the same time, a polymer material with different color powders added can be used for injection molding to distinguish different guide wires or catheters and improve identification efficiency.

[0042] The extension portion 3 includes a connecting portion 51, a blocking portion 52 and an auxiliary portion 53 in sequence. The connecting portion 51 is connected between the blocking portion 52 and the base 2. The second receiving groove 42 is provided on the blocking portion 52. The blocking portion 52 is extended to both sides of the base 2 through the connecting portion 51 to fix different parts of the guide wire. The auxiliary portion 53 extends from the end of the blocking portion 52 toward the base 2, and the auxiliary portion 53 is used to assist the guide wire to slide into the second receiving groove 42.

[0043] The extension part 3 in this embodiment includes a first extension part 31 and a second extension part 32. The connection part 51 of the first extension part 31 and the connection part 51 of the second extension part 32 extend in opposite directions; the blocking part 52 of the first extension part 31 and the blocking part 52 of the second extension part 32 extend in opposite directions. Each extension part 3 is formed in a form similar to a hook. The places where the connection part of the first extension part and the connection part of the second extension part are connected to the base are located at both ends of the same radial direction of the base.

[0044] The opening direction of the second receiving groove 42 on the blocking portion 52 of the first extending portion 31 and the second receiving groove 42 on the blocking portion 52 of the second extending portion 32 is the same, and opposite to the opening direction of the first receiving groove 41. That is, the force directions of the two second receiving grooves 42 acting on the guide wire are the same, but they act on different parts of the guide wire, and at the same time, the force direction is opposite to that of the first receiving groove 41 acting on the guide wire, thereby achieving fixation of the guide wire.

[0045] The first receiving groove 41, the second receiving groove 42 on the blocking portion 52 of the first extension portion 31, and the second receiving groove 42 on the blocking portion 52 of the second extension portion 32 are located in the same vertical plane. The base 2 in this embodiment is circular, and the vertical plane passes through the center of the circular base 2, that is, the first receiving groove 41 is opened along the radial direction of the base 2.

[0046] The depth of the first receiving groove 41 is less than or equal to half the thickness of the base 2; the depth of the second receiving groove 42 is less than or equal to half the thickness of the blocking portion 52. In this embodiment, it is preferred that the depth of the first receiving groove 41 is less than half the thickness of the base 2; the depth of the second receiving groove 42 is less than half the thickness of the blocking portion 52, so as to better act on the guide wire to fix the guide wire.

[0047] In this embodiment, the surfaces of the blocking portion 52 and the auxiliary portion 53 are both arc-shaped, the cross-sectional size of the blocking portion 52 gradually decreases from the direction close to the connecting portion 51 to the direction away from the connecting portion 51, and the cross-sectional size of the auxiliary portion 53 gradually decreases from the blocking portion 52 to the base 2. Figure 1-6 shown.

[0048] In other embodiments, the auxiliary portion 53 is configured to be spherical, connected to the end of the blocking portion 52, and extends toward the base 2, such as Figure 7 As shown, the spherical auxiliary portion 53 can also enable the guide wire to slide in along its spherical surface when the guide wire slides into the second receiving groove 42 .

[0049] Example 2 Guidewire Fixing Method

[0050] This embodiment provides a method for fixing a guide wire using the guide wire fixer 1 in the above embodiment 1, comprising the following steps:

[0051] Step 1: Coil the guide wire

[0052] After unpacking the guide wire, coil it into a ring.

[0053] Step 2: Insertion

[0054] The guide wire coiled into a ring first enters between the blocking portion 52 and the base 2 from the space between an auxiliary portion 53 and the base 2. When entering, an angle is formed between the guide wire and the fixture. After fully entering, the angle between the guide wire and the fixture is gradually reduced, so that the first position of the guide wire is accommodated in the first accommodation groove 41, and the second position of the guide wire is accommodated in the second accommodation groove 42 of the extension portion 3.

[0055] Step 3: Slide in

[0056] The guide wire is fixed by sliding another second position symmetrical to the first position into the second receiving groove 42 of another blocking part 52 through the arc surface of the auxiliary part 53. Preferably, the entire fixing length (the distance between the two receiving grooves) accounts for 10%-30% of the circumference of the guide wire or catheter ring to better achieve the fixation of the guide wire or catheter.

[0057] At this time, the first receiving groove 41 has a first direction of action on the first position of the guide wire, and on both sides of the first position, the two second receiving grooves 42 have a second direction of action on the second position of the guide wire, and the forces in the two directions are opposite, thereby achieving the fixation of the guide wire. The two second positions are symmetrically distributed on both sides of the first position. At the same time, after the guide wire is coiled into a ring, it has an elastic restoring force, so that it can be better fixed on the fixture.

[0058] In some embodiments, the diameter of the guide wire or catheter after being coiled into a ring is preferably 10-40 cm, and the size of the fixator is 5-15 cm, that is, the distance between the first position and the second position (the first accommodating groove and the second accommodating groove) is 2.5-7.5 cm, so as to better fix the guide wire or catheter.

[0059] With the surgical guidewire and catheter holder of the present invention, after the medical staff coils the guidewire or catheter into a ring, the ring is fixed on the holder, and the guidewire or catheter does not slip, and the use of a saline basin with a guidewire track can be eliminated, and the use of saline can be reduced, thereby reducing medical costs and reducing medical waste. The holder has a strong ability to fix the guidewire or catheter, and can effectively prevent the guidewire loop from bouncing or slipping off, thereby ensuring the sterile use of the guidewire and catheter. Different logos are printed on the holder, and the holder can be designed in a variety of colors, which is conducive to finding the target guidewire, shortening the operation time, and improving the turntable rate; and the holder of the present invention adopts the method of applying forces in different directions to different positions of the guidewire to fix the guidewire, thereby avoiding the damage caused by traditional clamping at the same position.

[0060] The above embodiments prepared by the method of the present invention are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be included in the protection scope of the present invention.

Claims

1. A guidewire fixator, characterized in that: The invention comprises a base and an extension part extending from the base in different directions. The base is provided with a first receiving groove, the extension part is provided with a second receiving groove, and the openings of the first receiving groove and the second receiving groove face in opposite directions.

2. The guidewire holder according to claim 1, characterized in that: The bottom of the second accommodating groove is arc-shaped; the length direction of the first accommodating groove is the direction of the connection line between the two second accommodating grooves.

3. The guidewire holder according to claim 1, characterized in that: The extending portion includes a connecting portion and a blocking portion, the connecting portion is connected between the blocking portion and the base, and the second accommodating groove is arranged on the blocking portion.

4. The guidewire holder according to claim 3, characterized in that: The extending portion includes a first extending portion and a second extending portion, wherein the connecting portion of the first extending portion and the connecting portion of the second extending portion extend in opposite directions; and the blocking portion of the first extending portion and the blocking portion of the second extending portion extend in opposite directions.

5. The guidewire holder according to claim 4, characterized in that: The opening direction of the second accommodating groove on the blocking portion of the first extending portion and the opening direction of the second accommodating groove on the blocking portion of the second extending portion are the same and opposite to the opening direction of the first accommodating groove.

6. The guidewire holder according to claim 3, characterized in that: The first accommodating groove, the second accommodating groove on the blocking portion of the first extending portion, and the second accommodating groove on the blocking portion of the second extending portion are located in the same vertical plane.

7. The guidewire holder according to claim 6, characterized in that: The base is arranged in a circular shape, and the vertical plane passes through the center of the circular base.

8. The guidewire fixator according to claim 3, characterized in that: The depth of the first receiving groove is less than or equal to half of the thickness of the base; and / or the depth of the second receiving groove is less than or equal to half of the thickness of the blocking portion.

9. The guidewire holder according to claim 3, characterized in that: The depth of the first accommodating groove is less than half of the thickness of the base; the depth of the second accommodating groove is less than half of the thickness of the blocking portion.

10. The guidewire fixator according to claim 3, characterized in that: The cross-sectional dimension of the blocking portion gradually decreases from a direction close to the connecting portion to a direction away from the connecting portion.

11. The guidewire fixator according to claim 3, characterized in that: The blocking portion has an auxiliary portion extending toward the base, and the auxiliary portion is used to assist the guide wire to slide into the second receiving groove.

12. The guidewire fixator according to claim 11, characterized in that: The auxiliary portion is arranged in an arc shape, and the cross-sectional size of the auxiliary portion gradually decreases from the blocking portion toward the base.

13. The guidewire fixator according to claim 11, characterized in that: The auxiliary portion is spherical.

14. The guidewire fixator according to any one of claims 1 to 13, characterized in that: The guide wire holder is integrally formed.

15. A method for fixing a guide wire using the guide wire fixator according to any one of claims 1 to 14, characterized in that: The method comprises the following steps: after the guide wire is coiled into a circular ring, it enters the space between a blocking part and a base, and is accommodated in the second accommodating groove and the first accommodating groove of one of the blocking parts; then, the guide wire is slid into the second accommodating groove of another blocking part through the auxiliary part, and the guide wire is fixed.

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