Guide wire fixer

Abstract

The utility model discloses a guide wire fixer which comprises a base and an extension part extending from the base in different directions, a first containing groove is formed in the base, a second containing groove is formed in the extension part, and openings of the first containing groove and the second containing 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] This utility model belongs to the field of medical device technology, and in particular relates to a surgical guidewire fixator. In addition, the guidewire in this application can be replaced by a catheter. Background Technology

[0002] Guidewires are one of the essential medical devices commonly used in interventional procedures. The guidewire is soft and flexible; it is inserted into the patient's body for observation with an endoscope, and then the physician controls the procedure by grasping the guidewire outside the body. In clinical practice, different guidewires are required for different lesions during interventional procedures, necessitating frequent guidewire changes. Because guidewires are generally long, they may extend beyond the sterile surgical area, causing contamination. Therefore, an assistant is often needed to coil the guidewire into a 10-20 cm diameter loop and manually press it down to prevent it from springing open. If no assistant is available, the guidewire must be held down on the instrument table to prevent it from springing open. Catheters, used in conjunction with guidewires, are also relatively long and must be coiled into a loop to prevent contamination.

[0003] The above situation currently presents the following problems:

[0004] 1. After the guidewire is unpacked, it generally needs to be soaked in heparinized saline. Currently, most people use gauze to fix the guidewire coils, but the gauze removal process is cumbersome and affects the progress of the operation;

[0005] 2. When the guidewire is wrapped in gauze, there is a risk of slippage. Therefore, it needs to be placed in a square basin with a fixing slot during soaking. This square basin is relatively expensive and large in size, and more saline solution is needed to cover the guidewire.

[0006] 3. After replacing the guidewire, if the guidewire coil is pressed onto the instrument table with other objects, it is easy for the guidewire coil to spring open or slip off, which may damage or contaminate the guidewire, resulting in irreparable adverse consequences.

[0007] 4. Because the guidewires are very thin and similar in color, and are parallel to each other and intertwined, it is difficult for the operator to quickly and accurately pick up the target guidewire.

[0008] Therefore, research is needed on how to fix guidewires and catheters to prevent slippage, even bounce or detachment, which could damage or contaminate them; how to prevent guidewire slippage during fixation, reduce the volume of the saline basin and the amount of saline used, save on operating costs, and reduce medical waste; how to quickly locate the target guidewire; how to use a simple fixator to improve surgical efficiency. These are the problems that need to be solved.

[0009] Existing patents also include guidewire fixation devices, such as patent CN201920224019.2, a disposable guidewire fixation device; patent CN200920030832.2, a clamp-type guidewire catheter fixation device; patent CN202022679407.5, a guidewire assembly and a guidewire fixing clip for holding the guidewire, etc. Although these patents all disclose fixation devices for fixing guidewires, they all use a clamping method to hold the guidewire. Even if some patents use flexible materials on the contact surface, using a clamping method on both sides at the same position can still cause irreversible damage to the guidewire.

[0010] The above background information is provided only to assist in understanding the utility model concept and technical solution of this utility model, and it does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed before the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0011] In view of this, in order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide an improved guide wire fixator, which can fix the guide wire without clamping or damaging it.

[0012] To achieve the above objectives, the present invention adopts the following technical solution:

[0013] A guide wire fixation device includes a base and extensions extending from the base in different directions. The base has a first receiving groove, and the extensions have a second receiving groove. The openings of the first receiving groove and the second receiving groove face opposite directions.

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

[0015] According to some preferred embodiments of the present invention, the extension includes a connecting portion and a blocking portion, the connecting portion being connected between the blocking portion and the base, and the second receiving groove being disposed on the blocking portion. The blocking portion extends to both sides of the base via the connecting portion to fix different parts of the guide wire.

[0016] According to some preferred embodiments of the present invention, the extension includes a first extension and a second extension, wherein the connecting portion of the first extension and the connecting portion of the second extension extend in opposite directions; the blocking portion of the first extension and the blocking portion of the second extension extend in opposite directions. Each extension is formed in a hook-like shape. The connecting portions of the first extension and the second extension are connected to the base at opposite ends of the same radial direction.

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

[0018] According to some preferred embodiments of the present invention, the first receiving groove, the second receiving groove on the blocking portion of the first extension, and the second receiving groove on the blocking portion of the second extension are located in the same vertical plane.

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

[0020] According to some preferred embodiments 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 receiving groove is less than half the thickness of the base; the depth of the second receiving groove is less than half the thickness of the blocking part, so as to better act on the guide wire to fix the guide wire.

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

[0023] According to some preferred embodiments of the present invention, the blocking portion has an auxiliary portion extending toward the base, the auxiliary portion being used to assist the guide wire in sliding into the second receiving groove.

[0024] According to some preferred embodiments of the present invention, the auxiliary part is provided with an arc-shaped surface, and the cross-sectional size of the auxiliary part gradually decreases from the blocking part to the base.

[0025] According to some preferred embodiments of the present invention, the auxiliary part is spherical.

[0026] According to some preferred embodiments of the present invention, the guide wire retainer is integrally formed.

[0027] This utility model also provides a method for fixing a guide wire using the guide wire retainer described above, comprising the following steps: after coiling the guide wire into a ring, it enters through the space between a blocking part and a base, and is accommodated in the second receiving groove of one of the blocking parts and the first receiving groove. Then, the guide wire is slid into the second receiving groove of the other blocking part through an auxiliary part, thus completing the fixation of the guide wire. The first receiving groove exerts a first directional force on the first position of the guide wire, and on both sides of the first position, the two second receiving grooves exert a second directional force 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 solutions, the advantages of this utility model compared with the prior art are as follows: The guide wire fixator of this utility model accommodates different parts of the guide wire in two receiving grooves with opposite opening directions, so that the inner wall of the receiving groove exerts opposite forces on different parts of the guide wire, thereby fixing the guide wire and avoiding damage to the guide wire caused by the traditional clamping method. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional structural diagram of the guide wire fixator in a preferred embodiment of the present invention;

[0031] Figure 2 This is a three-dimensional structural diagram of the guide wire fixator in a preferred embodiment of the present invention from another perspective;

[0032] Figure 3 This is a schematic diagram of the front view of the guide wire fixator in a preferred embodiment of the present invention;

[0033] Figure 4 This is a rear view of the guide wire fixator in a preferred embodiment of the present invention.

[0034] Figure 5 This is a bottom view of the guide wire fixator in a preferred embodiment of the present invention;

[0035] Figure 6 This is a right-side view of the guide wire fixator in a preferred embodiment of the present invention.

[0036] Figure 7 This is a front view schematic diagram of the guide wire fixator in another preferred embodiment of the present invention;

[0037] In the attached diagram, the components are: guide wire retainer-1, base-2, extension-3, first extension-31, second extension-32, first receiving groove-41, second receiving groove-42, connecting part-51, blocking part-52, and auxiliary part-53. Detailed Implementation

[0038] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0039] This utility model relates to a surgical guidewire and catheter fixator, which addresses the problem that existing fixators use clamping methods, easily causing damage to the guidewire or catheter. It also effectively prevents guidewire slippage, reduces the cost of guidewire trays and saline solution, and minimizes medical waste. Furthermore, it allows for rapid identification of the target guidewire through the fixator's coding and color, improving surgical efficiency.

[0040] Example 1: Guide wire retainer 1

[0041] like Figure 1-6 As shown, the guidewire fixator 1 in this embodiment includes a base 2 and extensions 3 extending from the base 2 in different directions. A first receiving groove 41 is formed on the base 2, and a second receiving groove 42 is formed on the extensions 3. 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 arc-shaped; the length direction of the first receiving groove 41 is the direction of the line connecting the two receiving grooves. The guidewire fixator 1 is integrally injection molded, and can be integrally numbered on the base 2. It can also be injection molded using polymer materials with added color powder to distinguish different guidewires or catheters, improving identification efficiency.

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

[0043] In this embodiment, the extension 3 includes a first extension 31 and a second extension 32. The connecting portion 51 of the first extension 31 and the connecting portion 51 of the second extension 32 extend in opposite directions; the blocking portion 52 of the first extension 31 and the blocking portion 52 of the second extension 32 also extend in opposite directions. Each extension 3 is formed in a hook-like shape. The connecting portions of the first extension and the second extension are connected to the base at opposite ends of the same radial direction.

[0044] The opening directions of the second receiving groove 42 on the blocking portion 52 of the first extension 31 and the second receiving groove 42 on the blocking portion 52 of the second extension 32 are the same and opposite to the opening direction of the first receiving groove 41. That is, the force exerted by the two second receiving grooves 42 on the guide wire is in the same direction, but acts on different parts of the guide wire, and is opposite to the force exerted by the first receiving groove 41 on the guide wire, thereby achieving the 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 31, and the second receiving groove 42 on the blocking portion 52 of the second extension 32 are located in the same vertical plane. In this embodiment, the base 2 is circular, and the vertical plane passes through the center of the circular base 2, that is, the first receiving groove 41 is opened radially along 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 part 52. In this embodiment, it is preferable that the depth of the first receiving groove 41 is less than half the thickness of the base 2; and the depth of the second receiving groove 42 is less than half the thickness of the blocking part 52, so as to better act on the guide wire to achieve fixation of the guide wire.

[0047] In this embodiment, the surfaces of both the blocking part 52 and the auxiliary part 53 are arc-shaped. The cross-sectional dimension of the blocking part 52 gradually decreases from near the connecting part 51 to away from the connecting part 51, and the cross-sectional dimension of the auxiliary part 53 gradually decreases from the blocking part 52 towards the base 2. Figure 1-6 As shown.

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

[0049] Example 2: Guide Wire Fixation Method

[0050] This embodiment provides a method for fixing a guidewire using the guidewire fixator 1 as described in Embodiment 1 above, including the following steps:

[0051] Step 1: Disc the guide wire

[0052] After unpacking the guidewire, first coil it into a ring.

[0053] Step 2: Insert

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

[0055] Step 3, Slide In

[0056] The guidewire is slid into the second receiving groove 42 of the other blocking part 52 through the arc-shaped surface of the auxiliary part 53 at another second position symmetrical about the first position, thus completing the fixation of the guidewire. Preferably, the entire fixation length (the distance between the two receiving grooves) accounts for 10%-30% of the circumference of the guidewire or catheter ring, so as to better achieve the fixation of the guidewire or catheter.

[0057] At this point, the first receiving groove 41 exerts a first directional force on the first position of the guidewire, while on both sides of the first position, the two second receiving grooves 42 exert a second directional force on the second position of the guidewire. The two forces are opposite in direction, thus achieving the fixation of the guidewire. The two second positions are symmetrically distributed on both sides of the first position. Simultaneously, the guidewire, after being coiled into a ring, possesses its own elastic restoring force, allowing it to be better fixed to the retainer.

[0058] In some embodiments, the diameter of the guidewire or catheter 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 receiving groove and the second receiving groove) is 2.5-7.5 cm, so as to better fix the guidewire or catheter.

[0059] This invention relates to a surgical guidewire and catheter fixator. Medical personnel coil the guidewire or catheter into a ring and then fix the ring to the fixator, preventing slippage. This eliminates the need for a saline basin with a guidewire track, reducing saline usage, lowering medical costs, and minimizing medical waste. The fixator provides strong fixation of the guidewire or catheter, effectively preventing the guidewire coil from springing open or slipping, ensuring aseptic use of the guidewire and catheter. Different markings are printed on the fixator, and it can be designed in multiple colors to facilitate finding the target guidewire, shortening surgical time, and increasing turnaround time. Furthermore, this invention uses different directions of force applied to different positions of the guidewire to achieve fixation, avoiding the damage caused by traditional clamping at the same position.

[0060] The above embodiments obtained by the method of this utility model are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly, and they should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A guidewire holder, comprising: It includes a base and extensions extending from the base in different directions. The base has a first receiving groove and the extensions have a second receiving groove. The openings of the first receiving groove and the second receiving groove face opposite directions.

2. The guidewire fixator according to claim 1, characterized in that, The bottom of the second receiving groove is arc-shaped; the length direction of the first receiving groove is the direction of the line connecting the two second receiving grooves.

3. The guide wire anchor of claim 1, wherein, The extension includes a connecting portion and a blocking portion, the connecting portion being connected between the blocking portion and the base, and the second receiving groove being disposed on the blocking portion.

4. The guide wire anchor of claim 3, wherein, The extension includes a first extension and a second extension, wherein the connecting portion of the first extension and the connecting portion of the second extension extend in opposite directions; and the blocking portion of the first extension and the blocking portion of the second extension extend in opposite directions.

5. The guide wire anchor of claim 4, wherein, The opening directions of the second receiving groove on the blocking portion of the first extension and the second receiving groove on the blocking portion of the second extension are the same and opposite to the opening direction of the first receiving groove.

6. The guide wire anchor of claim 3, wherein, The first receiving groove, the second receiving groove on the blocking portion of the first extension, and the second receiving groove on the blocking portion of the second extension are located in the same vertical plane.

7. The guide wire anchor of claim 6, wherein, The base is circular, and the vertical plane passes through the center of the circular base.

8. The guide wire anchor of claim 7, wherein, The connection points of the first extension and the second extension with the base are located at the same radial ends of the base.

9. The guide wire anchor of claim 3, wherein, 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.

10. The guide wire anchor of claim 3, wherein, The depth of the first receiving groove is less than half the thickness of the base; the depth of the second receiving groove is less than half the thickness of the blocking part.

11. The guide wire anchor of claim 3, wherein, The cross-sectional dimension of the blocking part gradually decreases from the direction closer to the connecting part to the direction farther away from the connecting part.

12. The guide wire anchor of claim 3, wherein, The blocking portion has an auxiliary portion extending toward the base, which is used to assist the guide wire in sliding into the second receiving groove.

13. The guidewire anchor of claim 12, wherein, The auxiliary part has an arc-shaped surface, and the cross-sectional size of the auxiliary part gradually decreases from the blocking part to the base.

14. The guide wire anchor of claim 12, wherein, The auxiliary part is spherical.

15. The guide wire anchor according to any one of claims 1 to 14, wherein The guide wire retainer is a one-piece molded device.

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