Ultrasonic enhanced developing needle

Abstract

The utility model discloses an ultrasonic enhanced developing needle, and relates to the technical field of medical instruments. The ultrasonic enhanced developing needle comprises a needle head assembly and a catheter assembly, the needle head assembly comprises a puncture needle, the puncture needle is composed of an enhancing section and a puncture section, the enhancing section and the puncture section are integrally arranged, the enhancing section is the needle head end of the puncture needle, an enhancing structure is arranged on the peripheral side of the enhancing section, and the enhancing structure is a groove formed in the side wall of the enhancing section. The groove is of a blind hole-shaped structure and is provided with two inclined groove walls; the puncture needle is connected with the catheter assembly through the puncture section. The enhanced structure arranged on the enhanced section of the needle head assembly is used for enhancing ultrasonic reflection, the groove is formed in the enhanced section and provided with the two inclined side walls, so that ultrasonic waves can be reflected along the two inclined side walls, the reflection times of the ultrasonic waves in the needle body are increased, and the ultrasonic reflection efficiency is improved. Therefore, the energy of the ultrasonic waves is fully utilized, the imaging definition is improved, and the puncture needle is clearly developed.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to an ultrasound-enhanced imaging needle. Background Technology

[0002] With the popularization of the ERAS (Enhanced Recovery After Surgery) concept, nerve blocks have also received significant attention. Ultrasound-guided nerve block techniques have rapidly developed and are increasingly applied to various types of anesthetic surgeries, such as ultrasound-guided nerve blocks combined with other anesthetic methods, and postoperative ultrasound-guided continuous nerve block analgesia. Orthopedic patients have a higher incidence and intensity of postoperative pain than other postoperative patients, making complete pain relief more difficult. Over 40% of outpatients experience moderate to severe pain after orthopedic surgery. Traditional pain management methods include intraoperative general anesthesia and anesthetic drugs, followed by postoperative oral and intravenous analgesics. A single injection of a long-acting local anesthetic for peripheral nerve block can provide up to 16 hours of postoperative analgesia. However, after the effects of the nerve block wear off, outpatients often have to rely on oral opioids to control pain. Unfortunately, opioids often have side effects such as itching, nausea, vomiting, drowsiness, and constipation.

[0003] In order to improve the postoperative analgesia effect of outpatient surgery, more and more research has been conducted on "peripheral nerve local anesthetic infusion". This method is also known as "continuous peripheral nerve block". However, during the needle insertion in the plane, at steep angles, needle visualization is often difficult. Utility Model Content

[0004] Therefore, this utility model provides an ultrasound-enhanced imaging needle to solve the problems existing in the above-mentioned technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An ultrasound-enhanced imaging needle, characterized in that it comprises a needle assembly and a catheter assembly, wherein the needle assembly and the catheter assembly are detachably connected;

[0007] The needle assembly includes a puncture needle, which is composed of a reinforcing section and a puncture section. The reinforcing section and the puncture section are integrally formed. The reinforcing section is the needle tip of the puncture needle. A reinforcing structure is provided on the periphery of the reinforcing section. The reinforcing structure is a groove provided on the side wall of the reinforcing section. The groove is a blind hole structure and has two inclined groove walls.

[0008] The puncture needle is connected to the catheter assembly via the puncture section.

[0009] Optionally, the catheter assembly includes a catheter body, which is sleeved on the puncture needle, with one end of the catheter body positioned at the connection between the puncture section and the reinforcing section, and the other end of the catheter body connected to a Y-shaped tube. One of the interfaces of the Y-shaped tube is connected to the injection port via a flexible tube, and the puncture section of the puncture needle passes through the other interface of the Y-shaped tube and is connected to a connector, which engages with the Y-shaped tube.

[0010] Optionally, the reinforcing structure is provided in multiple sets, and the multiple sets of the reinforcing structure are distributed in a circumferential array along the axis of the puncture needle.

[0011] Optionally, each set of the reinforcing structures includes a plurality of grooves linearly distributed in an array from the junction of the puncture section and the reinforcing section toward one end of the needle.

[0012] Optionally, the length of the reinforcing segment is 1 cm.

[0013] Optionally, a side hole is provided on the side wall of the catheter body near the reinforcing section, and the side hole penetrates the side wall of the catheter body.

[0014] Optionally, the puncture needle has graduations on its sidewall.

[0015] This utility model has at least the following beneficial effects:

[0016] This invention uses an enhancement structure on the enhancement section of the needle assembly to enhance ultrasonic reflection. The groove in the enhancement section has two inclined sidewalls, which allows ultrasonic waves to be reflected along the two inclined sidewalls. This increases the number of ultrasonic reflections inside the needle body, making full use of the ultrasonic energy, improving the clarity of the image, and making the puncture needle clearly visible. Attached Figure Description

[0017] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0019] Figure 1This is a schematic diagram of the puncture state (combination) structure according to an embodiment of the present invention;

[0020] Figure 2 This is a first-view structural diagram of a needle assembly according to an embodiment of the present invention;

[0021] Figure 3 This is a second-view structural schematic diagram of a catheter assembly according to an embodiment of the present invention;

[0022] Figure 4 for Figure 2 Enlarged structural diagram of section A;

[0023] Figure 5 for Figure 3 Enlarged structural diagram of section B.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Needle assembly; 11. Puncture needle; 111. Reinforcing section; 112. Puncture section; 12. Reinforcing structure; 13. Scale;

[0026] 2. Catheter assembly; 21. Catheter body; 22. Y-tube; 23. Injection port; 24. Tube; 25. Connector; 26. Side hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," "fourth," etc. (if present), in the specification, claims, and accompanying drawings of this utility model are intended to distinguish the objects they refer to. For solutions with a sequential flow, this terminology need not be interpreted as describing a specific order or sequence; for solutions with device structures, this terminology does not distinguish between matters of importance or positional relationships.

[0029] Furthermore, the terms “comprising,” “having,” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may also include other steps or units that are not expressly listed but are inherent to these processes, methods, products, or devices, or steps or units added based on further optimizations of the inventive concept.

[0030] like Figures 1-5 As shown, this utility model discloses an ultrasound-enhanced imaging needle, which includes a needle assembly 1 and a catheter assembly 2, wherein the needle assembly 1 and the catheter assembly 2 are detachably connected.

[0031] The needle assembly 1 includes a puncture needle 11, which is composed of a reinforcing section 111 and a puncture section 112. The reinforcing section 111 and the puncture section 112 are integrally formed. The reinforcing section 111 is the needle tip of the puncture needle 11. A reinforcing structure 12 is provided on the periphery of the reinforcing section 111. The reinforcing structure 12 is a groove provided on the side wall of the reinforcing section 111. The groove is a blind hole structure and has two inclined groove walls.

[0032] The puncture needle 11 is connected to the catheter assembly 2 via the puncture section 112. The needle assembly 1 and the catheter assembly 2 are detachably connected. During puncture, the catheter assembly 2 is fitted over the needle assembly 1 and inserted into the patient's body along with the needle. Then, the needle assembly 1 is separated (disassembled), the catheter assembly 2 is placed in the patient's body, and then medication is administered through the catheter assembly 2.

[0033] The aforementioned puncture needle 11 is integrally formed. A reinforcing structure 12 is provided at the front end (needle tip) of the puncture needle 11. A part of the reinforcing structure 12 is the reinforcing section 111, and the rest is the puncture section 112.

[0034] The reinforcing structure 12 on the reinforcing section 111 is a groove opened on the side wall of the needle tip. The groove is a blind hole structure. The groove is opened in the radial direction along the puncture needle 11. The side wall of the groove is set as two inclined surfaces. The inclined direction of the two inclined surfaces forms an angle with the axial direction of the puncture needle 11. The size of the angle is set according to the reflection path of the ultrasound to achieve the effect of increasing the clarity of imaging.

[0035] Furthermore, in order to better enhance the imaging effect, multiple sets of reinforcement structures 12 are provided, and the multiple sets of reinforcement structures 12 are arranged in a circumferential array along the axis of the puncture needle 11 on the side wall of the needle tip, generally four sets; and each set of reinforcement structures 12 includes multiple grooves arranged in a linear array along the axis of the puncture needle 11. Since the front end of the needle tip is an inclined structure, the number of grooves in each set of reinforcement structures 12 is not consistent. It is only necessary to ensure that the grooves start from the connection between the reinforcement section 111 and the puncture section 112 and end at the edge of the needle tip, and that the grooves are not opened on the edge of the needle tip.

[0036] Meanwhile, to avoid the groove affecting the strength of the needle, the depth of the groove should not exceed 1 / 2 of the thickness of the needle sidewall.

[0037] The catheter assembly 2 includes a catheter body 21, which is sleeved on the puncture needle 11. One end of the catheter body 21 is located at the connection between the puncture section 112 and the reinforcing section 111. The other end of the catheter body 21 is connected to a Y-shaped tube 22. One of the interfaces of the Y-shaped tube 22 is connected to the injection port 23 through a flexible tube 24. The puncture section 112 of the puncture needle 11 passes through the other interface of the Y-shaped tube 22 and is connected to a connector 25. The connector 25 is engaged with the Y-shaped tube 22.

[0038] The inner diameter of the catheter body 21 is adapted to the outer diameter of the puncture needle 11, so that it can be fitted onto the outside of the puncture needle 11, and the two fit tightly together without affecting the withdrawal of the puncture needle 11.

[0039] The connector 25 is fixed to the needle tail of the puncture needle 11, or it can be connected to the puncture needle 11 by a detachable connection. The connector 25 is provided with a snap-fit ​​part that is compatible with the interface of the Y-tube 22 and can be snapped into the interface of the Y-tube 22. The other end of the Y-tube 22 is connected to the tubing 24 and the injection port 23. After puncture, the puncture needle 11 is removed and the interface is sealed. Then the drug is administered through the injection port 23.

[0040] The reinforcing structure 12 is provided in multiple sets, and the multiple sets of the reinforcing structure 12 are distributed in a circumferential array along the axis of the puncture needle 11.

[0041] Each set of the reinforcing structures 12 includes a plurality of grooves linearly arranged at the junction of the puncture section 112 and the reinforcing section 111 toward one end of the needle.

[0042] The length of the reinforcing segment 111 is 1 cm.

[0043] Furthermore, a side hole 26 is provided on the side wall of the catheter body 21 near the reinforcing section 111, and the side hole 26 penetrates the side wall of the catheter body 21.

[0044] The side holes 26 on the catheter body 21 described above can ensure that drug delivery is not affected even if the catheter opening is blocked. Multiple side holes 26 can be provided and distributed on the side wall of the catheter body 21.

[0045] The puncture needle 11 has a scale 13 on its side wall.

[0046] By setting a scale 13 on the puncture needle 11, the scale 13 is a black mark with intervals. The corresponding scale 13 standard is set, which makes it easy to observe the scale 13 through the catheter body 21, so that the doctor can intuitively judge the puncture depth.

[0047] The above specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0048] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

[0049] The present invention has been described in a relatively specific and detailed manner above through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, various modifications and improvements can be made to these specific embodiments, all of which fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. An ultrasound-enhanced imaging needle, characterized in that: It includes a needle assembly and a catheter assembly, which are detachably connected; The needle assembly includes a puncture needle, which is composed of a reinforcing section and a puncture section. The reinforcing section and the puncture section are integrally formed. The reinforcing section is the needle tip of the puncture needle. A reinforcing structure is provided on the periphery of the reinforcing section. The reinforcing structure is a groove provided on the side wall of the reinforcing section. The groove is a blind hole structure and has two inclined groove walls. The catheter assembly includes a catheter body, which is fitted onto a puncture needle. One end of the catheter body is positioned at the connection between the puncture section and the reinforcing section. The other end of the catheter body is connected to a Y-shaped tube. One port of the Y-shaped tube is connected to an injection port via a flexible tube. The puncture section of the puncture needle passes through the other port of the Y-shaped tube and is connected to a connector, which engages with the Y-shaped tube. The puncture needle is connected to the catheter assembly via the puncture section. A side hole is provided on the side wall of the catheter body near the reinforcing section. The side hole penetrates the side wall of the catheter body. Multiple side holes are provided on the side wall of the catheter body.

2. The ultrasound-enhanced imaging needle according to claim 1, characterized in that: The reinforcing structure is provided in multiple sets, and the multiple sets of the reinforcing structure are distributed in a circumferential array along the axis of the puncture needle.

3. The ultrasound-enhanced imaging needle according to claim 2, characterized in that: Each set of the reinforcement structure includes a plurality of grooves linearly arranged at the junction of the puncture section and the reinforcement section toward one end of the needle.

4. The ultrasound-enhanced imaging needle according to claim 1, characterized in that: The length of the reinforcing segment is 1 cm.

5. The ultrasound-enhanced imaging needle according to claim 1, characterized in that: The puncture needle has graduations on its side wall.

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