Multi-needle puncture needle fixer

Abstract

The utility model relates to the technical field of medical auxiliary instruments, and provides a multi-needle puncture needle fixator which comprises a fixing strip and a fixing part, the fixing strip comprises a top face and a bottom face which are oppositely arranged, a plurality of insertion openings are formed in the top face at intervals, and a plurality of insertion openings are formed in the bottom face at intervals; the insertion openings and the insertion outlets are arranged in a one-to-one correspondence manner and are communicated with each other, and a needle threading channel is formed in the fixing strip; the fixing piece is connected to the fixing strip, and the fixing piece is used for fixing the fixing strip to a puncture part. According to the invention, the efficiency of blood vessel puncture by hands can be improved under the condition of no ultrasonic imaging auxiliary equipment.

Description

Technical Field

[0001] This application relates to the technical field of medical auxiliary devices, and particularly to a multi-needle puncture needle fixator. Background Art

[0002] The Seldinger technique is one of the common methods for selective angiography. According to the anatomical characteristics of different blood vessels, a catheter with different curvatures at the front end is selected, inserted into the blood vessel along the guide wire, then the guide wire is withdrawn, and then the catheter is inserted into the blood vessel to be imaged under fluoroscopic monitoring.

[0003] The Seldinger technique has become an indispensable core of all venous and arterial intubation methods. Once the puncture needle successfully enters the blood vessel, the Seldinger technique can exert its excellent utility and significantly improve the success rate of catheter insertion. However, it should be noted that this technique does not involve the crucial first step, that is, successfully completing vascular puncture. Ensuring the success of vascular intubation depends on accurately identifying the timing of vascular puncture. This critical moment is closely linked to the operator's decision to stop further inserting the needle in a timely manner, because excessive penetration may penetrate the posterior wall of the blood vessel, resulting in the loss of continuity between the needle lumen and the intravascular space. Traditionally, we judge whether vascular puncture has been successfully completed by observing the rapid appearance of blood in the syringe connected to the needle hub or the rhythmic bleeding from the end of the puncture needle.

[0004] In recent years, ultrasound imaging technology has been highly regarded in improving the safety and success rate of vascular catheter placement. However, in cases where time and resources are tight, if ultrasound imaging technology cannot be used, the operator still needs to accurately puncture to the optimal position with the needle in hand, combining their own experience and anatomical knowledge. However, the inability to use ultrasound imaging technology will greatly reduce the efficiency and safety of the vascular puncture step. Utility Model Content

[0005] In order to improve the efficiency of manual vascular puncture without the assistance of ultrasound imaging equipment, this application provides a multi-needle puncture needle fixator.

[0006] This application provides a multi-needle puncture needle fixator, adopting the following technical solution:

[0007] The multi-needle puncture needle fixator includes a fixing strip and a fixing member. The fixing strip includes a top surface and a bottom surface arranged oppositely. A plurality of insertion openings are spaced apart on the top surface, and a plurality of outlet openings are spaced apart on the bottom surface; the insertion openings and the outlet openings are arranged in one-to-one correspondence and communicate with each other to form a needle-passing channel in the fixing strip;

[0008] The fixing member is connected to the fixing strip, and the fixing member is used to fix the fixing strip to the puncture site.

[0009] By adopting the above technical solution, a plurality of insertion ports and insertion outlets spaced apart on the fixing strip form a plurality of needle-passing channels spaced apart on the fixing strip. The needle-passing channels can fix the puncture needle and provide a guiding function for the puncture of the puncture needle. During use, the fixing strip is fixed to the body surface of the patient to be punctured through the fixing member, and the puncture needles are sequentially inserted into each needle-passing channel. Once pulsatile arterial blood flow is observed, it can be determined that the puncture is successful, and the subsequent puncture operation should be stopped at this time. It is ensured that at least one or more needles can accurately penetrate into the blood vessel during insertion, thus greatly improving the success rate of puncture. And after several previous puncture failures, there is no need to reposition the puncture site, shortening the time required for successful puncture and improving the puncture efficiency.

[0010] Optionally, both the top surface and the bottom surface are set as planes.

[0011] By adopting the above technical solution, the bottom surface is set as a plane, and the top surface is also set as a plane. After the fixing strip is fixed to the puncture site, the top surface enables the puncturer to easily observe and judge the angle between the puncture needle and the skin puncture point, facilitating the puncture operation.

[0012] Optionally, a shaping layer is provided on the inner side wall of the needle-passing channel, and the shaping layer is made of a hard material.

[0013] By adopting the above technical solution, the needle-passing channel is made of a hard material, minimizing the friction between the puncture needle and the wall surface of the puncture channel as much as possible, and facilitating the needle-passing channel to provide guidance for the puncture needle.

[0014] Optionally, the center of the insertion port and the center of the insertion outlet are offset in the horizontal direction.

[0015] By adopting the above technical solution, the center of the insertion port and the center of the insertion outlet are offset in the horizontal direction, making the puncture channel inclined relative to the bottom surface. When the puncture needle is inserted along the puncture channel, the insertion route of the puncture needle conforms to the blood vessel trend, improving the puncture accuracy.

[0016] Optionally, a plurality of the insertion ports are equally spaced, and the spacing between adjacent two of the insertion ports ranges from 0.2 to 0.25 cm;

[0017] A plurality of the insertion outlets are equally spaced, and the spacing between adjacent two of the insertion outlets is equal to the spacing between adjacent two of the insertion ports.

[0018] By adopting the above technical solution, a plurality of the insertion outlets are equally spaced, and the spacing between adjacent two of the insertion outlets is equal to the spacing between adjacent two of the insertion ports, ensuring a reasonable spacing between the puncture needles and avoiding mutual interference.

[0019] Optionally, the insertion port and the plug outlet are both configured to be circular, the insertion port and the plug outlet have the same diameter, and the diameter of the insertion port ranges from 1.0 to 2.0 cm.

[0020] By adopting the above technical solution, the diameter range is 1.0-2.0 cm, and the insertion port can be set to different diameters as needed to accommodate puncture needles of different diameters.

[0021] Optionally, the fixing strip is made of medical grade material.

[0022] By adopting the above technical solution, the fixing strip is made of medical-grade materials to ensure the biocompatibility and durability of the fixing strip.

[0023] Optionally, the fixing member includes an adhesive film.

[0024] By adopting the above technical solution, the adhesive film is arranged to conveniently fix the fixator at the required puncture site.

[0025] Optionally, an indicator arrow is provided on a side wall of the fixing bar, and the indicator arrow points along the insertion opening toward the insertion opening.

[0026] By adopting the above technical solution, an indicator arrow is set to indicate the insertion direction of the puncture needle, which makes it easier for medical staff to quickly get started and improves convenience.

[0027] In summary, the present application includes at least one of the following beneficial effects:

[0028] 1. The provision of multiple puncture channels on the fixing strip in the present application not only improves the success rate of puncture, but also significantly shortens the time for withdrawing the puncture needle and repositioning the puncture site for re-puncture when the single-needle puncture fails; compared with the traditional single-needle handheld puncture needle, the introduction of the puncture needle holder enables the puncture needle to be stable and not shifted after the puncture is successful, which greatly facilitates the entry of the guide wire in the next step, thereby further improving the success rate of puncture and shortening the time required for successful puncture;

[0029] 2. This application not only improves the efficiency of puncture, but also greatly reduces the discomfort of patients, making the medical process smoother and more efficient;

[0030] 3. The needle channel design in this application, combined with a reasonable distance between the insertion port and the insertion outlet, and the use of medical-grade materials, not only ensures the safety of the puncture process, but also enhances the comfort of the fixator. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of a multi-needle puncture needle holder according to an embodiment of the present application;

[0032] Figure 2 It is a schematic perspective view of the multi-needle puncture needle fixator according to the embodiment of the present application;

[0033] Figure 3 It is a schematic diagram of the placement position when the multi-needle puncture needle fixator according to the embodiment of the present application is in use;

[0034] Explanation of reference numerals: 1, fixing strip; 11, top surface; 111, insertion opening; 12, bottom surface; 121, insertion outlet; 13, indicating arrow; 2, adhesive film; 3, femoral artery; 4, femoral vein; 5, external iliac artery; 6, external iliac vein; 7, anterior superior iliac spine; 8, pubic tubercle. Detailed implementation manners

[0035] The following will further elaborate on the present application in conjunction with the attached Figures 1-3 drawings.

[0036] The embodiment of the present application provides a multi-needle puncture needle fixator.

[0037] Referring to Figure 1 and Figure 2 , this embodiment discloses a multi-needle puncture needle fixator, including a fixing strip 1 and a fixing member fixed to the fixing strip 1. The fixing strip 1 is made of a medical-grade material such as rubber to ensure safety and durability. The fixing strip 1 is specifically arranged as a quadrangular prism, and the fixing strip 1 has a relatively arranged top surface 11 and bottom surface 12, and both the top surface and the bottom surface 12 are arranged as planes.

[0038] Referring to Figure 1 and Figure 2 , a plurality of circular insertion openings 111 are equally spaced on the top surface 11, and a plurality of circular insertion outlets 121 are correspondingly equally spaced on the bottom surface 12; the insertion openings 111 and the insertion outlets 121 correspond to each other and are mutually penetrated, forming a needle-passing channel inside the fixing strip 1. The inner side wall of the needle-passing channel is provided with a shaping layer, and the shaping layer is made of a hard material.

[0039] In this embodiment, five insertion openings 111 are specifically provided on one fixing strip 1. The diameters of the insertion openings 111 and the insertion outlets 121 are equal, and the diameter range of the insertion openings 111 is 1.0 - 2.0 cm, which can adapt to the sizes of common puncture needles on the market; the distance between adjacent two insertion openings 111 is equal to the distance between adjacent two insertion outlets 121, and the distance range between adjacent two insertion openings 111 is 0.2 - 0.25 cm. In this embodiment, the diameter of the insertion openings 111 is 0.5 cm, and the distance between adjacent two insertion openings 111 is 0.25 cm.

[0040] According to the actual direction of the blood vessel under the skin, the centers of the insertion port 111 and the outlet port 121 are designed with a certain offset in the horizontal direction, so that the puncture channel can better guide the puncture needle to smoothly puncture the blood vessel.

[0041] Referring to Figure 1 and Figure 2 , an indicating arrow 13 is printed on the side wall of the fixing strip 1. The indicating arrow 13 points from the insertion port 111 to the outlet port 121, indicating the insertion direction of the puncture needle, which is convenient for medical staff to quickly get started and use, and improves the convenience.

[0042] Referring to Figure 1 , the fixing member is fixed on the side wall of the fixing strip 1. The fixing member is specifically set as a medical-grade adhesive film 2, which can firmly paste the fixing strip 1 on the skin of the patient, ensuring that the fixator is not easily displaced during the whole puncture process.

[0043] Referring to Figure 3 , based on the multi-needle puncture needle fixator provided in this embodiment, the specific operation of establishing the femoral artery 3 access by multi-needle method is as follows:

[0044] S1: The patient takes a supine position, and the lower limb on the puncture side is slightly abducted and externally rotated. A point 1.5 - 3.0 cm below and inside the midpoint of the inguinal ligament (i.e., inside the pulsation of the femoral artery 3) is defined as the puncture point and marked.

[0045] S2: Disinfect the puncture site, fix the multi-needle puncture needle fixator vertically along the direction of the femoral artery 3, use the fixing member to fix the fixing strip 1 to the puncture site, and puncture with the puncture needle according to the anatomical direction of the femoral artery 3; insert the puncture needle successively along the multiple puncture channels of the fixing strip 1 to perform femoral artery 3 puncture until arterial blood is seen pulsating out from the tail end of the puncture needle after puncture, indicating successful puncture, and then the puncture can be stopped.

[0046] S3: Send the guide wire along the puncture needle into the femoral artery 3.

[0047] S4: Pull out the puncture needle, press the puncture point to reduce blood flow from the puncture point and prevent the guide wire from withdrawing from the puncture site.

[0048] S5: Insert the femoral artery 3 sheath along the guide wire into the femoral artery 3.

[0049] S6: After successfully inserting the catheter sheath and fixing it in place, remove the guide wire to successfully establish the femoral artery 3 access.

[0050] The implementation principle of the multi-needle puncture needle fixator in this application embodiment is:

[0051] Before use, medical staff first select the puncture area. After making the fixing strip 1 perpendicular to the direction of the femoral artery 3, the bottom surface 12 of the fixator is pasted on the skin through the adhesive film 2 to ensure that the fixing strip 1 is stable and immovable. Subsequently, the medical staff insert the puncture needles into each puncture channel one by one; the puncture needles are inserted through the insertion opening 111 on the top surface 11 and along the needle-passing channel until they penetrate out from the outlet 121 on the bottom surface 12. When pulsatile arterial blood flow is observed, it can be determined that the puncture is successful, and the subsequent puncture operations should be stopped at this time. In this way, the puncture needle fixator of this embodiment can significantly improve the efficiency of manual puncture without the assistance of ultrasonic imaging equipment, while ensuring the safety and accuracy of the puncture process.

[0052] The above embodiments are all preferred embodiments of the present application, but not a limitation on the protection scope of the present application. Any simple modification, equivalent replacement or combined use within the technical idea of the present application should be covered within the protection scope of the present application. Through the description of the above specific embodiments, those skilled in the art can clearly understand and implement the technical solution of the present application, so as to achieve the purpose of improving the efficiency of blood vessel puncture and ensuring the safety of the puncture process.

Claims

1. Multi-needle puncture needle fixator, characterized in that: Comprising a fixing strip (1) and a fixing member, the fixing strip (1) includes a top surface (11) and a bottom surface (12) arranged opposite to each other. A plurality of insertion openings (111) are spaced apart on the top surface (11), and a plurality of insertion outlets (121) are spaced apart on the bottom surface (12); the insertion openings (111) and the insertion outlets (121) are arranged in one-to-one correspondence and communicate with each other to form a needle-passing channel within the fixing strip (1). The fixing member is connected to the fixing strip (1), and the fixing member is used to fix the fixing strip (1) to the puncture site.

2. The multi-needle puncture needle fixator according to claim 1, wherein: Both the top surface (11) and the bottom surface (12) are arranged as flat surfaces.

3. The multi-needle puncture needle fixator according to claim 2, characterized in that: A shaping layer is provided on the inner sidewall of the needle-passing channel, and the shaping layer is made of a rigid material.

4. The multi-needle puncture needle fixator according to claim 1, characterized in that: The centers of the insertion openings (111) and the centers of the insertion outlets (121) are offset in the horizontal direction.

5. The multi-needle puncture needle fixator according to claim 1, wherein: The plurality of insertion openings (111) are equally spaced, and the spacing between adjacent two insertion openings (111) ranges from 0.2 - 0.25 cm; The plurality of insertion outlets (121) are equally spaced, and the spacing between adjacent two insertion outlets (121) is equal to the spacing between adjacent two insertion openings (111).

6. The multi-needle puncture needle fixator according to claim 5, characterized in that: Both the insertion openings (111) and the insertion outlets (121) are arranged as circles, the diameters of the insertion openings (111) and the insertion outlets (121) are equal, and the diameter range of the insertion openings (111) is 1.0 - 2.0 cm.

7. The multi-needle puncture needle fixator according to claim 1, wherein: The fixing strip (1) is made of a medical-grade material.

8. The multi-needle puncture needle fixator according to claim 1, wherein: The fixing member includes an adhesive film (2).

9. The multi-needle puncture needle fixator according to claim 1, characterized in that: An indicating arrow (13) is provided on the sidewall of the fixing strip (1), and the indicating arrow (13) points from the insertion opening (111) to the insertion outlet (121).

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