Ultrasonic enhanced developing puncture needle

Abstract

The invention discloses an ultrasonic enhanced developing puncture needle, and relates to the technical field of medical instruments, the ultrasonic enhanced developing puncture needle comprises a needle body and an air injection device, and the needle body is provided with a puncture end; the air injection device comprises an internal sleeve bag and an external air bag which are connected, the internal sleeve bag is arranged on the needle body in a sleeving mode and is close to the puncture end, the external air bag is located on one side of the outer portion of the needle body and is communicated with the internal sleeve bag, and a microbubble contrast agent or air is injected into the internal sleeve bag through the external air bag. The built-in cuff is filled, and a bubble layer is attached to the periphery of the puncture end of the needle body, so that the ultrasonic developing effect of the needle body is enhanced; by dynamically controlling injection and extraction of the microbubble contrast agent or air, the ultrasonic developing effect of the puncture needle is greatly enhanced, and therefore the accuracy and safety of puncture operation under ultrasonic guidance are improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an ultrasound-enhanced imaging puncture needle. Background Art

[0002] Ultrasound-guided puncture technology is widely used in clinical practice, especially in the fields of clinical anesthesia, neurology, orthopedics, etc. However, the traditional puncture needle has a smooth body and cannot clearly display the image when the needle is inserted, resulting in the control of the needle tip position relying only on the operator's experience, and cannot be precisely controlled, making the operation difficult. Due to the limited imaging effect of traditional ultrasound-guided puncture needles, it is often difficult to clearly display the needle tip position or puncture path, affecting the accuracy and safety of the doctor's operation, especially in deep tissues where the imaging becomes unclear, which can easily cause surgical errors and even medical accidents.

[0003] At present, it is still a technical challenge to improve the imaging effect of needles, especially in deep tissues. In the prior art, although etching the surface of the puncture needle is used to enhance ultrasound reflection, the imaging effect is still not ideal in deep puncture. Therefore, the present application provides an ultrasound enhanced imaging puncture needle to solve the above problem. Summary of the invention

[0004] In order to solve the above problems, the present application provides an ultrasound-enhanced imaging puncture needle, which is particularly suitable for puncture operations under ultrasound guidance and can effectively enhance the imaging effect of the puncture needle in ultrasound imaging, making the imaging clearer. The technical solution is as follows:

[0005] The present application provides an ultrasound enhanced imaging puncture needle, comprising a needle body and an air injection device, wherein the needle body has a puncture end; the air injection device comprises an internal cuff and an external air bag connected to each other, wherein the internal cuff is sleeved on the needle body and close to the puncture end, and the external air bag is located on one side of the exterior of the needle body and communicated with the internal cuff, and microbubble contrast agent or air is injected into the internal cuff through the external air bag, so that the internal cuff is filled and a bubble layer is attached around the puncture end of the needle body, so as to enhance the ultrasound imaging effect of the needle body.

[0006] For example, in the ultrasound enhanced imaging puncture needle provided in one embodiment, the gas injection device also includes a syringe, which is detachably connected to the external air bag, and injects or extracts microbubble contrast agent or air into or from the external air bag through the syringe.

[0007] For example, in the ultrasound enhanced imaging puncture needle provided in one embodiment, a connection port is provided on the external air bag, a one-way valve is provided on the connection port, and the syringe is connected to the external air bag through the one-way valve to control the capacity of microbubbles or air in the external air bag.

[0008] For example, in the ultrasound enhanced development puncture needle provided in one embodiment, a three-way pipe fitting is provided between the syringe and the one-way valve, the syringe and the external air bag are connected through the three-way pipe fitting, and a pressure sensor is provided at the outlet of the three-way pipe fitting. The pressure sensor is used to monitor the pressure change of the microbubble liquid or air in the built-in cuff to monitor the filling state of the built-in cuff in real time.

[0009] For example, in the ultrasound enhanced imaging puncture needle provided in one embodiment, the internal cuff and the external balloon are connected through a catheter, and the catheter is attached to the outer wall surface of the needle body.

[0010] For example, in the ultrasound enhanced imaging puncture needle provided in one embodiment, the catheter is a thin catheter, and the catheter is glued to the outer wall surface of the needle body.

[0011] For example, in the ultrasound enhanced imaging puncture needle provided in one embodiment, the built-in cuff is disposed at a position 3-5 mm away from the puncture end.

[0012] For example, in the ultrasound enhanced imaging puncture needle provided in one embodiment, the length of the built-in cuff is 8-12 mm.

[0013] The beneficial effects of an ultrasound-enhanced imaging puncture needle provided in some embodiments of the present application are as follows: by adding an inflatable cuff to the tip of the puncture needle and dynamically controlling the injection and extraction of microbubble contrast agent or air, the specific position and depth of the puncture needle entering the patient's body can be known, thereby greatly enhancing the ultrasound imaging effect of the puncture needle, making the imaging clearer and less blurred, thereby improving the accuracy and safety of the puncture operation under ultrasound guidance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the state in which the built-in cuff of the ultrasound enhanced imaging puncture needle provided in an embodiment of the present application is evacuated;

[0016] Figure 2 This is a schematic diagram of the filling state of the built-in cuff of the ultrasound enhanced imaging puncture needle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0018] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] The present application provides an ultrasound-enhanced imaging puncture needle, which is particularly suitable for puncture operations under ultrasound guidance and can effectively enhance the imaging effect of the puncture needle in ultrasound imaging, such as Figure 1-2 As shown, it includes a needle body 10 and an air injection device 20, the needle body 10 has a puncture end 11; the air injection device 20 includes an internal cuff 21 and an external air bag 22 connected to each other, the internal cuff 21 is sleeved on the needle body 10 and close to the puncture end 11, the external air bag 22 is located on the outer side of the needle body 10 and is connected to the internal cuff 21, and microbubble contrast agent or air is injected into the internal cuff 21 through the external air bag 22, so that the internal cuff 21 is filled and a bubble layer is attached around the puncture end 11 of the needle body 10, so as to enhance the ultrasonic imaging effect of the needle body 10.

[0020] The main part of the puncture needle includes a slender needle body 10, the outer surface of the needle body 10 is smooth and suitable for puncture operation, and the end of the needle body 10 is a sharp part, namely the puncture end 11, which is used to puncture the target tissue.

[0021] The internal cuff 21 is set at a position about 3-5mm away from the puncture end 11. The length of the internal cuff 21 is 8-12mm, and specifically 10mm can be selected. The internal cuff 21 can contain microbubble ultrasound contrast agent or air, and the injection and extraction of bubbles or air are controlled by the external air bag 22. The internal cuff 21 is evacuated as shown in FIG. Figure 1As shown, the internal cuff 21 is adsorbed on the outside of the needle body 10; the internal cuff 21 is filled as shown in FIG. Figure 2 As shown, a bubble layer is attached around the puncture end 11 of the needle body 10.

[0022] The ultrasound-enhanced imaging puncture needle of the present application adds an inflatable internal cuff 21 to the tip of the puncture needle. After the puncture needle enters the tissue, the injection and extraction of microbubble contrast agent or air are dynamically controlled by the external cuff 22, so that smooth needle insertion and real-time optimization of the imaging effect can be achieved, thereby maintaining a stable imaging effect. The ultrasound-enhanced imaging puncture needle of the present application overcomes the defects of traditional puncture needles that cannot clearly display images when the needle is inserted, resulting in the control of the needle tip position can only rely on the operator's experience, cannot be accurately controlled, and has high difficulty in operation. It greatly enhances the ultrasound imaging effect of the puncture needle, thereby improving the accuracy and safety of puncture operations under ultrasound guidance.

[0023] For example, in the ultrasound enhanced imaging puncture needle provided in one embodiment, Figure 1-2 As shown, the gas injection device 20 further includes a syringe 23 , which is detachably connected to the external airbag 22 , and through which microbubble contrast agent or air is injected or extracted into or from the external airbag 22 .

[0024] For example, in the ultrasound enhanced imaging puncture needle provided in one embodiment, Figure 1-2 As shown, a connection port 221 is provided on the external airbag 22 , and a one-way valve 222 is provided on the connection port 221 . The syringe 23 is connected to the external airbag 22 via the one-way valve 22 to control the capacity of microbubbles or air in the external airbag 22 .

[0025] According to the above embodiment, a connection port 221 equipped with a one-way valve 222 is provided on the external airbag 22. The connection port 221 is compatible with existing syringes and is easy to operate and control. Through the one-way valve 222, microbubble contrast agent or air can be injected into the external airbag 22 and the internal cuff 21 to prevent liquid or air from flowing back, or liquid can be extracted from the external airbag 22 to control the volume of microbubbles in the internal cuff 21. After the microbubbles are injected into the internal cuff 21, they can adhere to the outer surface of the needle body 10 wrapped by the internal cuff 21. Since ultrasound is extremely sensitive to air, the internal cuff 21 containing microbubble contrast agent or air can greatly improve the visibility of the puncture needle in the ultrasound image and enhance the ultrasound imaging effect of the needle body 10. Especially in deep tissues or difficult-to-identify areas, the specific position and depth of the puncture needle entering the patient's body can be known, and it is easier to control the imaging needle to avoid blood vessels and nerves, reduce secondary damage to soft tissues, effectively reduce the difficulty of treatment implementation, and accelerate patient recovery.

[0026] For example, in the ultrasound enhanced imaging puncture needle provided in one embodiment, Figure 2 As shown, a three-way pipe fitting 224 is provided between the syringe 23 and the one-way valve 222, the syringe 23 is connected to the external airbag 22 through the three-way pipe fitting 224, and a pressure sensor 223 is provided at the outlet of the three-way pipe fitting 224, and the pressure change of the microbubble liquid or air in the built-in cuff 21 is monitored by the pressure sensor 223 to monitor the filling state of the built-in cuff 21 in real time.

[0027] Alternatively, the external airbag 22 is a rubber airbag with a pressure sensing function, and the pressure change of the microbubble liquid in the internal cuff 21 is sensed by the hardness of the external airbag 22 .

[0028] According to the above embodiment, by monitoring the pressure change in the built-in cuff 21, the stability or capacity of the microbubbles in the built-in cuff 21 can be indirectly reflected, thereby guiding the operator to adjust the injection amount or pressure of the microbubbles to ensure the best development effect.

[0029] For example, in the ultrasound enhanced imaging puncture needle provided in one embodiment, Figure 1-2 As shown, the internal cuff 21 and the external air bag 22 are connected via a catheter 24 , and the catheter 24 is attached to the outer wall of the needle body 10 .

[0030] Specifically, the catheter 24 is a thin catheter, and the catheter 24 is glued to the outer wall of the needle body 10 .

[0031] When the ultrasound-enhanced imaging puncture needle of the present application is used, the puncture needle can be used to perform conventional puncture operations under ultrasound guidance. After the needle body 10 enters the tissue, the operator injects microbubble contrast agent or air into the external airbag 22 through the syringe 23, and the microbubble contrast agent or air enters the built-in cuff 21 along the catheter 24, so that the built-in cuff 21 is filled, and a bubble layer is attached around the needle body 10, thereby optimizing the imaging effect of the ultrasound image. Through the pressure sensor 223 or the external airbag 22 with pressure sensing function, the pressure of the bubbles in the built-in cuff 21 can be conveniently monitored, and the filling state of the built-in cuff 21 can be monitored in real time to ensure that the ultrasound imaging during the puncture process is always in the best state, and also to ensure the safety of the operation. After the puncture is completed, the contrast agent or air in the built-in cuff 21 is extracted, and the needle body 10 is pulled out.

[0032] Although the implementation scheme of the present application has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes, and it can be fully applicable to various fields suitable for the present application. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present application is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An ultrasound-enhanced imaging puncture needle, characterized in that: include: a needle body having a puncture end; The gas injection device includes an internal cuff and an external air bag connected to each other. The internal cuff is sleeved on the needle body and close to the puncture end, and the external air bag is located on the outer side of the needle body and is connected to the internal cuff. Microbubble contrast agent or air is injected into the internal cuff through the external air bag, so that the internal cuff is filled and a bubble layer is attached around the puncture end of the needle body to enhance the ultrasonic imaging effect of the needle body.

2. The ultrasound enhanced imaging puncture needle according to claim 1, characterized in that: The gas injection device also includes a syringe, which is detachably connected to the external air bag, and through which microbubble contrast agent or air is injected or extracted into or from the external air bag.

3. The ultrasound enhanced imaging puncture needle according to claim 2, characterized in that: A connecting port is provided on the external air bag, and a one-way valve is provided on the connecting port. The syringe is connected to the external air bag through the one-way valve to control the capacity of microbubbles or air in the external air bag.

4. The ultrasound enhanced imaging puncture needle according to claim 3, characterized in that: A three-way pipe fitting is provided between the syringe and the one-way valve, the syringe and the external air bag are connected through the three-way pipe fitting, and a pressure sensor is provided on the outlet of the three-way pipe fitting. The pressure sensor is used to monitor the pressure change of the microbubble liquid or air in the built-in cuff to monitor the filling state of the built-in cuff in real time.

5. The ultrasound enhanced imaging puncture needle according to claim 4, characterized in that: A pressure sensor is provided on the external airbag, and the pressure change of the microbubble liquid or air in the internal cuff is monitored by the pressure sensor to monitor the filling state of the internal cuff in real time.

6. The ultrasound enhanced imaging puncture needle according to any one of claims 1 to 3, characterized in that: The internal cuff and the external air bag are connected through a catheter, and the catheter is attached to the outer wall surface of the needle body.

7. The ultrasound enhanced imaging puncture needle according to claim 5, characterized in that: The catheter is a thin catheter, and the catheter is glued to the outer wall surface of the needle body.

8. The ultrasound enhanced imaging puncture needle according to claim 1, characterized in that: The built-in cuff is arranged at a position 3-5 mm away from the puncture end.

9. The ultrasound enhanced imaging puncture needle according to claim 2, characterized in that: The length of the built-in cuff is 8-12 mm.

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