Safe drainage suction puncture needle
By designing a safe drainage and aspiration puncture needle, combining the inner and outer needle tube components, and incorporating a blunt tip design and drainage hole structure, the problem of the puncture needle easily scratching tissue is solved, achieving the dual effects of safety and blockage removal.
Patent Information
- Application Number
- CN202520209217.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Traditional amniocentesis needles have sharp tips that can easily scratch the intestines, blood vessels, lung tissue, and even cause cardiac tamponade. Both doctors and patients are concerned about fetal injury during the amniocentesis process.
A safe drainage and aspiration puncture needle is designed, which combines an inner needle tube assembly and an outer needle tube assembly. The inner needle tube has a blunt tip and a drainage hole at the front end, which can clear the blockage by rubbing against the edge of the outer needle tube when there is blockage. The outer needle tube has a beveled surface to facilitate puncture.
It reduces the risk of tissue damage, avoids cardiac tamponade and fetal abrasion, improves operational safety, and can effectively clear blockages to ensure smooth drainage.
Smart Images
Figure CN223627560U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field, concretely relates to a safe drainage suction puncture needle. BACKGROUND
[0002] Liquid extraction treatment of ascites, pleural effusion, pericardial effusion and the like is a common clinical treatment method, puncture needles are needed in the liquid extraction treatment process, are stabbed into target positions, and corresponding liquid is sucked out, however, the tip of the traditional puncture needle is relatively sharp, and the intestinal canal, blood vessel and lung tissue are easily scratched when operation is improper, and even pericardial tamponade leading to patient death and other risks are caused by scratching the heart tissue.
[0003] Therefore, the present application provides a safe drainage suction puncture needle to solve the above problems. SUMMARY
[0004] The utility model wants to solve the technical problem that the existing liquid extraction treatment of ascites, pleural effusion, pericardial effusion and the like is a common clinical treatment method, puncture needles are needed in the liquid extraction treatment process, are stabbed into target positions, and corresponding liquid is sucked out, however, the tip of the traditional puncture needle is relatively sharp, and the intestinal canal, blood vessel and lung tissue are easily scratched when operation is improper, and even pericardial tamponade leading to patient death and other risks are caused by scratching the heart tissue.
[0005] The utility model provides the following technical scheme: a safe drainage suction puncture needle includes outer needle tube component and inner needle tube component, the inner needle tube component is arranged in the outer needle tube component, and is switched with the outer needle tube component in fixed and non-fixed state, and has the first working condition of the inner needle tube component being located in the outer needle tube component and puncturing to the target position and the second working condition of the inner needle tube being pushed out of the outer needle tube for drainage after puncturing to the target position, wherein the end of the inner needle tube away from the inner needle tube handle in the inner needle tube component is blunt and is provided with drainage hole.
[0006] Preferably, the outer needle tube component includes an outer needle tube and an outer needle tube handle, the outer needle tube handle is installed at one end of the outer needle tube, and the end of the outer needle tube away from the outer needle tube handle is provided with an inclined surface facilitating puncture;
[0007] Preferably, the inner needle tube component includes an inner needle tube, an inner needle tube handle, a luer joint and a luer cap, the inner needle tube is installed inside the outer needle tube, one end of the inner needle tube is provided with the inner needle tube handle, and the inner needle tube and the inner needle tube handle are internally connected, one end of the inner needle tube handle is provided with the communicating luer joint and the matching luer cap.
[0008] Preferably, the outer needle tube handle is internally provided with a sealing plug for preventing liquid from flowing out of the gap between the inner needle tube and the outer needle tube.
[0009] Preferably, a positioning ring is mounted on the outer needle tube for positioning.
[0010] The beneficial effects of the present application are as follows:
[0011] 1. The utility model discloses a blunt end is set to the drainage needle front end, and is provided with drainage hole, is not easy to damage tissue when drainage suction, can clear the accumulated blockage through the rubbing of the inside drainage needle and outer needle needle tip when the drainage hole is blocked, effectively reduce the problem of drainage hole drainage blockage. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will be briefly introduced the drawings needed to be used in the specific embodiment or prior art description, obviously, the drawings in the following description is some embodiments of the utility model, for those skilled in the art, without creative labor, according to these drawings, other drawings can also be obtained.
[0013] Figure 1 It is the overall schematic view of the utility model;
[0014] Figure 2 It is the sectional view of the utility model;
[0015] Figure 3 It is the enlarged schematic view of point A of the utility model;
[0016] Figure 4 It is the enlarged schematic view of point B of the utility model.
[0017] In the drawing: 1, outer needle tube assembly;11, outer needle tube;12, outer needle tube handle;2, inner needle tube assembly;21, inner needle tube;211, drainage hole;22, inner needle tube handle;23, luer joint;24, luer cap;3, sealing plug;4, positioning ring. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed present application, but only represents some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0019] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0020] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "back" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product of the present application is usually placed. Such terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0021] It should also be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0022] The embodiments of the present disclosure aim to solve the problem that the existing liquid extraction treatment of abdominal effusion, pleural effusion, pericardial effusion and the like is a common treatment method in clinical practice, and a puncture needle needs to be used in the liquid extraction treatment process to pierce into a target position and aspirate the corresponding liquid. However, the tip of the traditional puncture needle is relatively sharp, and the intestinal canal, blood vessels, lung tissue and even the heart tissue can be easily scratched when the operation is improper, which can cause pericardial tamponade and even death of the patient. In addition, in the process of amniocentesis, the existing puncture needle causes anxiety of the medical staff and the patient about whether the puncture needle can scratch the fetus. Therefore, the embodiments of the present disclosure provide a safe drainage and aspiration puncture needle, the front end of the drainage needle is provided with a blunt head and a drainage hole, and the tissue is not easily damaged during drainage and aspiration. When the drainage hole is blocked, the inner drainage needle and the outer needle tip can be rubbed to remove the accumulated blockage, thereby effectively reducing the problem of drainage hole blockage.
[0023] As shown in Figures 1 to 4 A safe drainage and aspiration puncture needle, comprising an outer needle tube assembly 1 and an inner needle tube assembly 2, the inner needle tube assembly 2 is arranged in the outer needle tube assembly 1 and is switched between the fixed and non-fixed states with the outer needle tube assembly 1, and has a first working state of puncturing to a target position when the inner needle tube assembly 2 is located in the outer needle tube assembly 1 and a second working state of performing drainage after the inner needle tube 21 is pushed out of the outer needle tube 11 after puncturing to the target position; wherein the end of the inner needle tube 21 away from the inner needle tube handle 22 in the inner needle tube assembly 2 is provided with a blunt head and a drainage hole, and the drainage hole 211 is used to cooperate to achieve the aspiration effect. If the drainage hole 211 is blocked during the aspiration process, it can also cooperate with the cutting edge of the outer needle tube 11, that is, the drainage hole 211 of the inner needle can be cleaned by the periodic movement of the inner needle tube 21 and the friction of the cutting edge of the outer needle tube 11, which can effectively clean the blocked drainage hole 211.
[0024] Meanwhile, the end of the inner needle tube 21 away from the inner needle tube handle 22 is provided with a blunt head, which is used to avoid the risk of accidental killing of the target position tissue during the use of the puncture needle, thereby solving the problem that the tip of the traditional puncture needle is relatively sharp and can easily scratch the intestinal canal, blood vessels and lung tissue when the operation is improper;
[0025] The outer needle tube assembly 1 comprises an outer needle tube 11 and an outer needle tube handle 12, the outer needle tube handle 12 is installed at one end of the outer needle tube 11, and the end of the outer needle tube 11 away from the outer needle tube handle 12 is provided with an inclined surface convenient for puncture;
[0026] The inner needle tube assembly 2 comprises an inner needle tube 21, an inner needle tube handle 22, a luer joint 23 and a luer cap 24, the inner needle tube 21 is installed inside the outer needle tube 11, one end of the inner needle tube 21 is provided with the inner needle tube handle 22, and the inner needle tube 21 and the inner needle tube handle 22 are through inside; One end of the inner needle tube handle 22 is provided with a communicating luer joint 23 and a luer cap 24 matched with the luer joint 23;
[0027] In operation, in the initial state, the inner needle tube 21 is inserted into the outer needle tube 11 through the outer needle tube handle 12 (the end of the inner needle tube 21 away from the inner needle handle is located inside the outer needle tube 11), at this time, the inner needle tube handle 22 and the limiting structure on the outer needle tube handle 12 play a temporary fixing role, in the initial state, the puncture needle is punctured to the target position boundary, at this time, the inner needle tube handle 22 is twisted clockwise by 45°, the handle is unlocked, the inner needle tube 21 is pushed forward by a certain distance to make the end of the inner needle tube 21 leak out of the tip of the outer needle tube 11 (the drainage hole 211 of the inner needle is completely exposed), then it is twisted by 45° clockwise, the handle is locked, the inner needle tube 21 is relatively fixed with the outer needle tube 11, then the luer cap 24 on the inner needle handle is unscrewed, the connecting tube is connected with the luer joint 23, and the suction is used, if it is found that the resistance is large during the suction, the drainage hole 211 is probably blocked, can be rotated counterclockwise by 45°, then the inner needle is pushed forward and backward, the drainage hole 211 of the inner needle is cleaned by the blade edge of the outer needle, and the blocked drainage hole 211 can be effectively cleaned.
[0028] The safety drainage and suction puncture needle has the advantages that the tissue is not easy to be damaged during drainage and suction, when the drainage hole 211 is blocked, the internal drainage needle can be pushed and pulled to rub against the tip of the outer needle to remove the accumulated blockage, and the problem of drainage hole 211 blockage is effectively reduced.
[0029] As shown in Figure 4 The inner needle tube 21 and the outer needle tube 11 are further provided with a sealing plug 3 inside the outer needle tube handle 12 to prevent liquid from flowing out of the gap between the inner needle tube 21 and the outer needle tube 11, which can effectively prevent liquid from flowing out of the gap between the inner needle tube 21 and the outer needle tube 11, thereby ensuring the normal work of the drainage and suction puncture needle.
[0030] As shown in Figure 1 The outer needle tube 11 is provided with a positioning ring 4 for positioning, which is used for positioning the outer needle tube 11 during puncture, thereby ensuring that the puncture needle can puncture and suck at the specified position.
[0031] The whole working process is: in the initial state, the inner needle tube 21 is inserted into the outer needle tube 11 through the outer needle tube handle 12 (the end of the inner needle tube 21 away from the inner needle handle is located inside the outer needle tube 11), at this time, the limiting structure on the inner needle tube handle 22 and the outer needle tube handle 12 plays a temporary fixing role, in the initial state, the puncture needle is punctured to the target position boundary, at this time, the inner needle tube handle 22 is twisted clockwise by 45°, the handle is unlocked, the inner needle tube 21 is pushed forward by a certain distance to make the end of the inner needle tube 21 leak out of the sharp end of the outer needle tube 11 (the drainage hole 211 of the inner needle is completely exposed), then it is twisted by 45° clockwise again, the handle is locked, the inner needle tube 21 is relatively fixed with the outer needle tube 11, then the luer cap 24 on the inner needle handle is unscrewed, the connecting tube is connected with the luer joint 23, and the suction is used, if it is found that the resistance is large during the suction process, the drainage hole 211 is probably blocked, the inner needle can be rotated counterclockwise by 45°, then the inner needle is pushed forward and backward, the drainage hole 211 of the inner needle is cleaned by the sharp edge of the outer needle, and the blocked drainage hole 211 can be effectively cleaned.
[0032] Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A safe drainage and aspiration puncture needle, characterized in that, The application relates to a double-needle tube assembly, which comprises an outer needle tube assembly (1) and an inner needle tube assembly (2), the inner needle tube assembly (2) is arranged in the outer needle tube assembly (1) and can be switched with the outer needle tube assembly (1) between a fixed state and a non-fixed state, and the inner needle tube assembly (2) has a first working state of puncturing to a target position and a second working state of pushing out an inner needle tube (21) from an outer needle tube (11) for drainage after puncturing to the target position; wherein the end of the inner needle tube (21) away from an inner needle tube handle (22) is blunt and is provided with drainage holes.
2. A safety drainage aspiration and suction needle according to claim 1, wherein: The outer needle tube assembly (1) comprises the outer needle tube (11) and an outer needle tube handle (12), the outer needle tube handle (12) is installed at one end of the outer needle tube (11), and the end of the outer needle tube (11) away from the outer needle tube handle (12) is provided with an inclined surface facilitating puncture.
3. A safety drainage aspiration and suction needle according to claim 2, wherein: The inner needle tube assembly (2) comprises the inner needle tube (21), the inner needle tube handle (22), a luer joint (23) and a luer cap (24), the inner needle tube (21) is installed inside the outer needle tube (11), one end of the inner needle tube (21) is provided with the inner needle tube handle (22), and the inner needle tube (21) and the inner needle tube handle (22) are internally through; one end of the inner needle tube handle (22) is provided with the communicating luer joint (23) and the luer cap (24) matched with the luer joint (23).
4. A safety drainage aspiration and suction needle according to claim 2, wherein: The inner needle tube handle (22) is further provided with a sealing plug (3) inside for preventing liquid from flowing out from the gap between the inner needle tube (21) and the outer needle tube (11).
5. A safety drainage aspiration and suction needle according to claim 4, wherein: The outer needle tube (11) is provided with a positioning ring (4) for positioning.