Puncture needle

Abstract

The embodiment of the present disclosure discloses a puncture needle. The puncture needle includes a puncture needle sheath and a puncture needle core, wherein the treatment end of the puncture needle sheath is provided with a one-way valve, an array of surrounding injection side holes and a fixed airbag in sequence from the end to the inside; the one-way valve is provided inside the end of the puncture needle sheath, the array of surrounding injection side holes is provided on the puncture needle sheath, and the surrounding injection side holes in the array of surrounding injection side holes penetrate the inside and outside of the puncture needle sheath; the interior of the puncture needle sheath is hollow, and when the puncture needle is in use, the puncture needle core is movably provided inside the puncture needle sheath; after the puncture needle is inserted into the cyst wall, the fixed airbag is in an expanded state to fix the treatment end of the puncture needle in the cyst wall. The puncture needle can reduce the risk of trauma and infection and improve the treatment effect of the cyst cavity.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of puncture biopsy, and in particular to a puncture needle. Background Art

[0002] The puncture biopsy of thyroid cysts, breast cysts, liver cysts and kidney cysts mostly needs to be conducted under ultrasound guidance. Generally, a 20G puncture biopsy needle or an ordinary Chiba needle is used to aspirate the cyst fluid for examination. During the operation, a sclerosant (such as anhydrous ethanol) needs to be repeatedly injected into the cyst cavity and aspirated out, so as to achieve multiple flushing of the cyst cavity, block the blood vessels, and cause dehydration and necrosis of the cyst wall. At the end, a small amount of sclerosant is retained, which is absorbed by the body and ultimately achieves the purpose of shrinking the cyst.

[0003] However, when the above-mentioned puncture needle is used for puncture biopsy, the following technical problems often occur:

[0004] The above-mentioned puncture needle has a single function and no fixing effect. It has poor stability during the suction process and may cause the puncture needle to fall off after insertion. Repeated punctures will increase the risk of trauma and infection. The single needle hole at the puncture point makes it difficult to achieve uniform distribution of the hardener on the cyst wall when injecting the hardener, resulting in poor treatment effect of the cystic cavity.

[0005] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure concept and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art. Utility Model Content

[0006] The content of this disclosure is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this disclosure is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0007] Some embodiments of the present disclosure provide a puncture needle to solve one or more of the technical problems mentioned in the above background technology section.

[0008] Some embodiments of the present disclosure provide a puncture needle, which includes a puncture needle sheath and a puncture needle core, wherein the treatment end of the puncture needle sheath is provided with a one-way valve, a surrounding injection side hole array and a fixed air bag in sequence from the end to the inside; the one-way valve is arranged inside the end of the puncture needle sheath, the surrounding injection side hole array is opened on the puncture needle sheath, and the surrounding injection side holes in the surrounding injection side hole array pass through the inside and outside of the puncture needle sheath; the interior of the puncture needle sheath is hollow, and when the puncture needle is in use, the puncture needle core is movably arranged inside the puncture needle sheath; after the puncture needle is inserted into the cyst wall, the fixed air bag is in an expanded state to fix the treatment end of the puncture needle in the cyst wall.

[0009] Optionally, when the puncture needle core penetrates the puncture needle sheath, the one-way valve opens, and when the puncture needle core is pulled out of the puncture needle sheath, the one-way valve closes.

[0010] Optionally, a needle sheath seat is provided at the other end of the puncture needle sheath.

[0011] Optionally, a puncture needle tip is provided at one end of the puncture needle core, and a needle core seat is provided at the other end of the puncture needle core.

[0012] Optionally, the shape of the needle core seat matches the shape of the needle sheath seat.

[0013] Optionally, the needle sheath seat provided on the puncture needle sheath is used for connecting a syringe.

[0014] Optionally, each surrounding injection side hole in the surrounding injection side hole array is evenly opened on the side wall of the puncture needle sheath.

[0015] Optionally, the puncture needle core is a solid puncture needle.

[0016] Optionally, the puncture needle sheath is further provided with an expandable component, and the surrounding injection side hole array is provided on the expandable component.

[0017] The above-mentioned various embodiments of the present disclosure have the following beneficial effects: the puncture needles of some embodiments of the present disclosure can reduce the risk of trauma and infection and improve the cystic cavity treatment effect. Specifically, the reasons for the increased risk of trauma and infection and the poor cystic cavity treatment effect are: the above-mentioned puncture needles have a single function and no fixing effect, poor stability during the suction process, which may cause the puncture needle to fall off after insertion, repeated punctures will increase the risk of trauma and infection, and the single needle hole at the puncture point makes it difficult to achieve uniform distribution of the hardener on the cystic wall when injecting the hardener, resulting in poor cystic cavity treatment effect. Based on this, the puncture needle of some embodiments of the present disclosure includes a puncture needle sheath and a puncture needle core, wherein the treatment end of the puncture needle sheath is provided with a one-way valve, an array of surrounding injection side holes and a fixed airbag in sequence from the end to the inside; the one-way valve is provided inside the end of the puncture needle sheath, the array of surrounding injection side holes is provided on the puncture needle sheath, and the surrounding injection side holes in the array of surrounding injection side holes penetrate the inside and outside of the puncture needle sheath; the interior of the puncture needle sheath is hollow, and when the puncture needle is in use, the puncture needle core is movably provided inside the puncture needle sheath; after the puncture needle is inserted into the cyst wall, the fixed airbag is in an expanded state to fix the treatment end of the puncture needle in the cyst wall. Because the array of surrounding injection side holes includes multiple surrounding injection side holes instead of a single injection hole, the hardener can be ejected from the surrounding side holes to achieve multi-directional injection, so that the hardener is injected more evenly. Also, when the puncture needle is inserted into the cyst wall, the fixing airbag is in an expanded state to fix the puncture needle in the cyst wall, thereby reducing the probability of the puncture needle falling off, thereby reducing the risk of trauma and infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that components and elements are not necessarily drawn to scale.

[0019] Figure 1 is a schematic structural diagram of some embodiments of a puncture needle sheath included in the puncture needle of the present disclosure;

[0020] Figure 2 is a schematic structural diagram of some embodiments of the puncture needle core included in the puncture needle of the present disclosure;

[0021] Figure 3 It is a schematic structural diagram of some embodiments of the puncture needle sheath included in the puncture needle of the present disclosure in an expanded state. DETAILED DESCRIPTION

[0022] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0023] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0024] It should also be noted that, for ease of description, only the parts related to the relevant disclosure are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0025] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0026] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0027] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0028] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0029] Figure 1 It is a schematic structural diagram of some embodiments of the puncture needle sheath included in the puncture needle according to the present disclosure. Figure 1 The invention comprises a puncture needle sheath 1 , a one-way valve 11 , an array of surrounding injection side holes 12 and a fixing air bag 13 .

[0030] Figure 2 It is a schematic structural diagram of some embodiments of the puncture needle core included in the puncture needle according to the present disclosure. Figure 2 The utility model comprises a puncture needle core 2.

[0031] Figure 3 It is a schematic structural diagram of some embodiments of the puncture needle sheath included in the puncture needle of the present disclosure in an expanded state. Figure 3 The invention comprises a puncture needle sheath 1 , a one-way valve 11 , an array of surrounding injection side holes 12 and a fixing air bag 13 .

[0032] In some embodiments, the puncture needle may include a puncture needle sheath 1 and a puncture needle core 2. The treatment end of the puncture needle sheath 1 may be provided with a one-way valve 11, a surrounding injection side hole array 12 and a fixing airbag 13 in sequence from the distal end to the inside.

[0033] In some embodiments, the one-way valve 11 may be disposed inside the end of the puncture needle sheath 1. The surrounding injection side hole array 12 may be provided on the puncture needle sheath 1. It can be understood that each surrounding injection side hole in the surrounding injection side hole array 12 may be provided on the puncture needle sheath 1 in a surrounding manner. And the surrounding injection side holes in the surrounding injection side hole array 12 may penetrate the inside and outside of the puncture needle sheath 1. Thus, the hardener may be injected into the cyst wall through each surrounding injection side hole in the surrounding injection side hole array 12, so that the hardener may be ejected from the surrounding side holes, realizing multi-directional injection, and making the hardener injection more uniform.

[0034] In some embodiments, the interior of the puncture needle sheath 1 may be hollow. When the puncture needle is in use, the puncture needle core 2 may be movably disposed inside the puncture needle sheath 1. Specifically, the puncture needle core 2 may movably penetrate the interior of the puncture needle sheath 1.

[0035] In some embodiments, Figure 3 As shown, after the puncture needle is inserted into the cyst wall, the fixed airbag 13 can be in an expanded state to fix the treatment end of the puncture needle in the cyst wall. Specifically, after the puncture needle is inserted into the cyst wall, the fixed airbag 13 can be expanded by injecting purified air through a syringe to clamp the treatment end of the puncture needle into the cyst wall. Thus, by inflating the fixed airbag, the diameter of the puncture needle sheath fixed airbag is expanded, thereby ensuring that the needle tip is hung in the cyst wall and no longer falls out, thereby reducing the probability of the puncture needle falling off and reducing the risk of trauma and infection.

[0036] Optionally, when the puncture needle core 2 penetrates the puncture needle sheath 1, the one-way valve 11 may be opened. When the puncture needle core 2 is pulled out of the puncture needle sheath 1, the one-way valve 11 may be closed. Thus, when the puncture needle core 2 is pulled out of the puncture needle sheath 1, the one-way valve 11 is closed, and the puncture needle core 2 cannot be inserted again, thereby preventing the puncture needle from being reused, and when the one-way valve 11 is closed, the hardener can only be sprayed out from the side hole surrounding the end, realizing multi-directional injection.

[0037] Optionally, a needle sheath seat may be provided at the other end of the puncture needle sheath 1. Thus, the needle sheath seat may be used to connect a syringe to facilitate injection of a hardener.

[0038] Optionally, a puncture needle tip may be provided at one end of the puncture needle core 2. A needle core seat may be provided at the other end of the puncture needle core 2. Thus, the needle core seat can facilitate the user to drive the puncture needle core 2 to move in the puncture needle sheath 1.

[0039] Optionally, the shape of the needle core seat may match the shape of the needle sheath seat, so that the needle core seat may be clamped in the needle sheath seat.

[0040] Optionally, the needle sheath seat provided on the puncture needle sheath 1 can be used to connect a syringe.

[0041] Optionally, each surrounding injection side hole in the surrounding injection side hole array 12 can be evenly opened on the side wall of the puncture needle sheath 1. Therefore, the evenly arranged surrounding injection side holes can make the hardener injection more even.

[0042] Optionally, the puncture needle core 2 may be a solid puncture needle.

[0043] Optionally, the puncture needle sheath may be provided with an expandable component. The surrounding injection side hole array may be provided on the expandable component. The expandable component may be made of a retractable material. Figure 3 As shown, after the puncture needle is inserted into the cyst wall, when the drug is injected, the one-way valve 11 will be closed, and then the injection rod will be pushed during injection, and the pressure on the top of the puncture needle sheath will increase, thereby expanding the treatment end of the puncture needle sheath. After expansion, the expandable component can be in an expanded state, so that the expandable component expands into an ellipsoidal shape, the surrounding injection side hole array can fit more closely to the inner wall of the cyst, the surrounding injection side hole array on the expandable component can also be opened, and the drug can be sprayed out from each surrounding injection side hole in the surrounding injection side hole array, so that the hardener is applied more evenly.

[0044] In the process of adopting technical solutions to solve the above technical problems, the following technical problem 2 often accompanies it: during the process of inserting the puncture needle core into the puncture needle sheath, when the puncture needle core is tilted, it may be inserted from the expandable component and the cystic wall, causing damage to the expandable component and the cystic wall, resulting in poor fixation effect and hardening agent application effect. In response to the above technical problem 2, the conventional solution is generally: during use, the doctor inserts the puncture needle core as smoothly and slowly as possible. However, the above conventional solution still has the following problems: the puncture needle core is inserted slowly, the use efficiency is low, and when encountering external collision, the puncture needle core may still cause damage to the expandable component and the cystic wall.

[0045] Considering the problems of the above conventional solutions, facing the above technical problem 2: when the puncture needle core is inserted into the puncture needle sheath, if the puncture needle core is tilted, it may be inserted from the expandable component and the cystic wall, causing damage to the expandable component and the cystic wall, resulting in poor fixation effect and hardening agent application effect. In combination with the current technical status, it can be decided to adopt the following solution:

[0046] Optionally, the puncture needle may further include a needle core fixing member. The needle core fixing member may be detachably connected to the top of the puncture needle sheath. A needle core through hole may be provided on the needle core fixing member. The diameter of the needle core through hole may be the same as the diameter of the puncture needle core. The shape of the outer side of the needle core fixing member may be terraced. The outer diameter of the narrower portion of the needle core fixing member may be the same as the diameter of the hollow inside the puncture needle sheath. The length of the narrower portion of the needle core fixing member may be less than the hollow length of the puncture needle sheath. As an example, the length of the narrower portion of the needle core fixing member may be 2 / 3 of the hollow length of the puncture needle sheath. During the process of inserting the puncture needle core into the puncture needle sheath, the narrower portion of the needle core fixing member may be embedded into the inside of the puncture needle sheath from the top of the puncture needle sheath. The puncture needle core may be embedded in the needle core through hole. After the puncture needle core is pulled out of the puncture needle sheath, the needle core fixing member may be pulled out from the inside of the puncture needle sheath. Therefore, by embedding the needle core fixing part into the interior of the puncture needle sheath and then embedding the puncture needle core into the needle core through hole, the moving path of the puncture needle core can be limited, thereby preventing the puncture needle core from shaking left and right and causing damage to the expandable component and the cyst wall.

[0047] The relevant content of the needle core fixing part as an inventive point of the embodiment of the present disclosure solves the second technical problem "When the puncture needle core is inserted into the puncture needle sheath, if the puncture needle core is tilted, it may be inserted from the expandable component and the cystic wall, causing damage to the expandable component and the cystic wall, resulting in poor fixing effect and hardening agent application effect". The reasons for the fixing effect and hardening agent application effect are as follows: When the puncture needle core is inserted into the puncture needle sheath, if the puncture needle core is tilted, it may be inserted from the expandable component and the cystic wall, causing damage to the expandable component and the cystic wall. If the above factors are solved, the fixing effect and hardening agent application effect of the puncture needle can be improved. In order to achieve this effect, the puncture needle of the present disclosure also includes a needle core fixing part. The needle core fixing part is detachably connected to the top of the puncture needle sheath. A needle core through hole is provided on the needle core fixing part. The diameter of the needle core through hole is the same as the diameter of the puncture needle core. The shape of the outer side of the needle core fixing part is stepped. The outer diameter of the narrower portion of the needle core fixing piece is the same as the diameter of the hollow space inside the puncture needle sheath. The length of the narrower portion of the needle core fixing piece is smaller than the hollow length of the puncture needle sheath. During the process of inserting the puncture needle core into the puncture needle sheath, the narrower portion of the needle core fixing piece is embedded into the interior of the puncture needle sheath from the top of the puncture needle sheath. The puncture needle core is embedded into the needle core through hole. After the puncture needle core is pulled out of the puncture needle sheath, the needle core fixing piece is pulled out from the interior of the puncture needle sheath. Thus, by embedding the needle core fixing piece into the interior of the puncture needle sheath and then embedding the puncture needle core into the needle core through hole, the moving path of the puncture needle core can be limited, thereby preventing the puncture needle core from shaking left and right to cause damage to the expandable component and the cyst wall, thereby improving the fixing effect of the puncture needle and the application effect of the hardener.

[0048] The above-mentioned various embodiments of the present disclosure have the following beneficial effects: the puncture needles of some embodiments of the present disclosure can reduce the risk of trauma and infection and improve the cystic cavity treatment effect. Specifically, the reasons for the increased risk of trauma and infection and the poor cystic cavity treatment effect are: the above-mentioned puncture needles have a single function and no fixing effect, poor stability during the suction process, which may cause the puncture needle to fall off after insertion, repeated punctures will increase the risk of trauma and infection, and the single needle hole at the puncture point makes it difficult to achieve uniform distribution of the hardener on the cystic wall when injecting the hardener, resulting in poor cystic cavity treatment effect. Based on this, the puncture needle of some embodiments of the present disclosure includes a puncture needle sheath and a puncture needle core, wherein the treatment end of the puncture needle sheath is provided with a one-way valve, an array of surrounding injection side holes and a fixed airbag in sequence from the end to the inside; the one-way valve is provided inside the end of the puncture needle sheath, the array of surrounding injection side holes is provided on the puncture needle sheath, and the surrounding injection side holes in the array of surrounding injection side holes penetrate the inside and outside of the puncture needle sheath; the interior of the puncture needle sheath is hollow, and when the puncture needle is in use, the puncture needle core is movably provided inside the puncture needle sheath; after the puncture needle is inserted into the cyst wall, the fixed airbag is in an expanded state to fix the treatment end of the puncture needle in the cyst wall. Because the array of surrounding injection side holes includes multiple surrounding injection side holes instead of a single injection hole, the hardener can be ejected from the surrounding side holes to achieve multi-directional injection, so that the hardener is injected more evenly. Also, when the puncture needle is inserted into the cyst wall, the fixing airbag is in an expanded state to fix the puncture needle in the cyst wall, thereby reducing the probability of the puncture needle falling off, thereby reducing the risk of trauma and infection.

[0049] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned disclosure concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) to form a technical solution.

Claims

1. A puncture needle, characterized in that: The puncture needle comprises a puncture needle sheath and a puncture needle core, wherein: The treatment end of the puncture needle sheath is provided with a one-way valve, an array of surrounding injection side holes and a fixed air bag in sequence from the distal end to the inside; The one-way valve is arranged inside the end of the puncture needle sheath, the surrounding injection side hole array is opened on the puncture needle sheath, and the surrounding injection side holes in the surrounding injection side hole array penetrate the inside and outside of the puncture needle sheath; The interior of the puncture needle sheath is hollow, and when the puncture needle is in use, the puncture needle core is movably disposed inside the puncture needle sheath; After the puncture needle is inserted into the cyst wall, the fixing airbag is in an expanded state to fix the treatment end of the puncture needle in the cyst wall.

2. The puncture needle according to claim 1, characterized in that: When the puncture needle core penetrates the puncture needle sheath, the one-way valve opens, and when the puncture needle core is pulled out of the puncture needle sheath, the one-way valve closes.

3. The puncture needle according to claim 1, characterized in that: The other end of the puncture needle sheath is provided with a needle sheath seat.

4. The puncture needle according to claim 3, characterized in that: A puncture needle tip is arranged at one end of the puncture needle core, and a needle core seat is arranged at the other end of the puncture needle core.

5. The puncture needle according to claim 4, characterized in that: The shape of the needle core seat matches the shape of the needle sheath seat.

6. The puncture needle according to claim 3, characterized in that: The needle sheath seat arranged on the puncture needle sheath is used for connecting a syringe.

7. The puncture needle according to claim 1, characterized in that: Each surrounding injection side hole in the surrounding injection side hole array is evenly opened on the side wall of the puncture needle sheath.

8. The puncture needle according to claim 1, characterized in that: The puncture needle core is a solid puncture needle.

9. The puncture needle according to claim 1, characterized in that: The puncture needle sheath is also provided with an expandable component, and the surrounding injection side hole array is arranged on the expandable component.

Images