Drainage puncture device

CN224639816UActive Publication Date: 2026-08-18CHONGQING MEDICAL UNIVERSITY AFFILIATED THIRD HOSPITAL(FANGDA HOSPITAL)
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520937134.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-08-18
Estimated Expiration
2035-05-13

AI Technical Summary

Technical Problem

[0005]针对现有技术存在的不足,本实用新型提出一种引流穿刺装置,以解决上述背景技术中提出的现有的穿刺针在穿刺后大多为暴露在患者体内,没有任何防护措施,导致在引流的过程中易由于患者身体活动或外界干扰导致穿刺针刺伤患者脏器的技术问题

Benefits of technology

该装置在穿刺时,当其一端与患者皮肤接触时,皮肤推动挡块的光滑端使得挡块收起至管体内,并对弹性件进行压缩,且直至尖端与皮肤接触以进行穿刺,当管体穿刺进患者体内时,在弹性件的作用下控制挡块伸出管体外,通过两组挡块对尖端进行遮挡,有效的避免尖端对患者体内的脏器造成伤害,还可通过固定组件将挡块伸出后的位置进行固定,防止患者身体活动或外界因素导致该装置整体发生运动时尖端伸出于两组挡块外,提高其保护效果。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224639816U_ABST
    Figure CN224639816U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of drainage puncture device, including tube body, tube body is hollow structure, tube body middle part is provided with baffle, tube body end part is provided with tip, slidingly set up with mounting seat in tube body, two groups of stops are provided on mounting seat, stop end part is smooth arc surface, and it is shielded to tip by projecting outside tube body, the end part of tube body is provided with detachable abutting component, elastic member is arranged between abutting component and mounting seat, fixed component connected with mounting seat is provided on tube body, the position of mounting seat is selectively locked or unlocked after stop projecting outside tube body by fixed component. The device can shield tip by two groups of stops after puncture, effectively avoid that tip causes harm to dirty organ in patient's body, and the position of stop after projecting can also be fixed by fixed component, prevent that tip projects outside two groups of stops when the whole device moves due to patient's body activity or external factor, improve its protection effect.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model specifically relates to a drainage puncture device. Background Technology

[0002] Puncture drainage is a common clinical treatment for pleural effusion, ascites, abscesses, and other diseases. It involves using a puncture needle to penetrate the body tissue and reach the lesion site, establishing a drainage channel to drain effusion or pus. However, most existing puncture needles are directly exposed inside the patient's body after the procedure, lacking effective protective measures.

[0003] For example, Chinese utility model patent CN203153887U provides an abdominal drainage puncture needle, which consists of a spindle-shaped needle head, a needle tube, and a needle tail; the spindle-shaped needle head and the needle tube are connected at an angle, and the front part of the needle tail has an annular groove to prevent dislodgement. This utility model has the characteristics of simple design, convenient operation, safety, minimal damage, appropriate drainage diameter, and time saving, which greatly simplifies the operation procedure for placing a drainage tube after abdominal surgery.

[0004] During postoperative drainage using traditional puncture devices, the puncture needle is highly susceptible to displacement due to the patient's daily activities or unintentional external contact. Because the puncture needle is quite sharp, once displaced, its tip can easily puncture the patient's organs, causing serious complications such as organ bleeding and perforation. This not only increases patient suffering but can also endanger their lives. Furthermore, existing devices lack a stable fixation and protective structure for the puncture needle, failing to provide reliable support and protection, and thus failing to meet the needs of safe clinical drainage. Therefore, a drainage puncture device is proposed to address the aforementioned technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model proposes a drainage puncture device to solve the technical problem mentioned in the background art, where existing puncture needles are mostly exposed inside the patient's body after puncture without any protective measures, making it easy for the puncture needle to puncture the patient's organs during the drainage process due to the patient's physical activity or external interference.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drainage puncture device, comprising: The tube body has a hollow structure, with a baffle in the middle and a pointed end; The mounting base is slidably disposed inside the tube. The mounting base is provided with two sets of stops. The ends of the stops are smooth arc surfaces and extend out of the tube to block the tip. An abutment component is detachably disposed at the end of the tube body, and an elastic element is provided between the abutment component and the mounting base; and A fixing component is disposed on the tube body and connected to the mounting base to selectively lock or unlock the position of the mounting base after the stop extends out of the tube body.

[0007] In a preferred embodiment, the abutment component includes: A connecting seat is provided on the tube body, and the connecting seat is screwed into the connecting shell; and The abutment frame has a mounting ring at the top, which is rotatably disposed at the bottom of the connecting seat and abuts against the end of the elastic member.

[0008] In a preferred embodiment, a drainage pipe is provided inside the baffle, and the ends of the two sets of drainage pipes are connected by a main pipe, which extends out of the tube body.

[0009] In a preferred embodiment, the stop block is further provided with a protective pipe, and the main pipe passes through the protective pipe.

[0010] In a preferred embodiment, the fixing component includes: A connecting ring, rotatably fitted onto the protective tube along its axis, and an adjusting post is provided on the connecting ring; and A C-shaped groove is formed on the side wall of the tube body at the end away from the tip. One end of the C-shaped groove has a snap-fit ​​groove, and the other end has an extension groove that extends to the outside. The adjusting column is snapped into the snap-fit ​​groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects: During puncture, when one end of the device contacts the patient's skin, the skin pushes the smooth end of the stop block, causing the stop block to retract into the tube and compress the elastic element until the tip contacts the skin for puncture. When the tube is inserted into the patient's body, the elastic element controls the stop block to extend out of the tube. The two sets of stops effectively shield the tip from damaging the patient's internal organs. The fixing components can also fix the position of the extended stop block to prevent the tip from extending outside the two sets of stops when the device moves due to the patient's body movement or external factors, thus improving its protective effect. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0013] Figure 1 A front view of a drainage puncture device provided by this utility model; Figure 2 for Figure 1 Enlarged view of region A in the middle; Figure 3 This is a side view of a drainage puncture device according to the present invention; Figure 4 This is a cross-sectional view of a drainage puncture device according to the present invention; Figure 5 This is a schematic diagram of the internal structure of a drainage puncture device according to the present invention; Figure label: 1. Pipe body; 2. Connecting shell; 3. Tip; 4. C-groove; 5. Snap-fit ​​groove; 6. Extension groove; 7. Mounting seat; 8. Stop block; 9. Drainage pipe; 10. Main pipe; 11. Protective pipe; 12. Abutment frame; 13. Elastic element; 14. Mounting ring; 15. Connecting seat; 16. Connecting ring; 17. Adjusting column. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0015] Example:

[0016] like Figure 1 , 3 As shown in Figure 4, this utility model provides a drainage puncture device, including a tube body 1, which has a hollow structure. A partition is provided in the middle of the tube body 1, and a tip 3 is provided at its end. A mounting seat 7 is slidably provided inside the tube body 1. Two sets of stops 8 are provided on the mounting seat 7. The ends of the stops 8 are smooth arc surfaces and extend out of the tube body 1 to block the tip 3. A contact component is detachably provided at the end of the tube body 1. An elastic element 13 is provided between the contact component and the mounting seat 7. The contact component includes a connecting seat 15, a connecting shell 2 is provided on the tube body 1, the connecting seat 15 is screwed into the connecting shell 2, and a contact frame 12 is also provided. A mounting ring 14 is provided on the top of the contact frame 12. The mounting ring 14 is rotatably provided at the bottom of the connecting seat 15 and abuts against the end of the elastic element 13.

[0017] During use, the device works as follows: The end of the stop block 8 first contacts the patient's skin, continuing to apply pressure to the tube body 1. The skin can push the stop block 8 back into the tube body 1, where the abutment frame 12 compresses the elastic element 13, allowing puncture to proceed through the tip 3. After puncture, the elastic element 13 controls the sliding of the mounting base 7, causing the stop block 8 to extend outside the tube body 1 to block the tip 3. The device can be disassembled and reassembled by rotating the connecting base 15, facilitating cleaning of the internal components.

[0018] like Figure 5 As shown, in this embodiment, a drainage pipe 9 is internally installed on the stop block 8, and the ends of the two sets of drainage pipes 9 are connected by a main pipe 10, which extends out of the tube body 1. A protective pipe 11 is also provided on the stop block 8, and the main pipe 10 is installed inside the protective pipe 11. After the device is punctured, the stop block 8 extends, and the opening of the drainage pipe 9 is exposed, allowing drainage to proceed. The accumulated fluid enters the main pipe 10 through the drainage pipe 9 and is discharged from the body. The protective pipe 11 protects the main pipe 10 to prevent it from bending.

[0019] like Figure 1 , 2 As shown in Figure 5, in this embodiment, the tube body 1 is provided with a fixing component connected to the mounting base 7. The fixing component can selectively lock or unlock the position of the mounting base 7 after the stop 8 extends out of the tube body 1. The fixing component includes a connecting ring 16 that is rotatably sleeved on the protective tube 11 along its axis. An adjusting post 17 is provided on the connecting ring 16. A C-shaped groove 4 is opened at the end of the side wall of the tube body 1 away from the tip 3. A snap-fit ​​groove 5 is opened at one end of the C-shaped groove 4, and an extension groove 6 that extends to the outside is opened at the other end. The adjusting post 17 is snapped in the snap-fit ​​groove 5.

[0020] The adjusting column 17 can be pushed out of the snap-fit ​​groove 5 so that it can move up and down in the vertical section of the C-shaped groove 4 before piercing. After piercing, the adjusting column 17 is pushed into the snap-fit ​​groove 5, and an upward force is applied to the adjusting column 17 under the action of the elastic element 13 so that it is not easy to detach from the snap-fit ​​groove 5. The position of the mounting base 7 and the stop block 8 can be fixed, effectively preventing the tip 3 from being exposed when the stop block 8 is retracted during the drainage process.

[0021] The specific usage and beneficial effects of this utility model are as follows: During puncture, when one end of the device contacts the patient's skin, the skin pushes the smooth end of the stop 8, causing the stop 8 to retract into the tube body 1 and compress the elastic element 13 until the tip 3 contacts the skin for puncture. When the tube body 1 is inserted into the patient's body, the elastic element 13 controls the stop 8 to extend out of the tube body 1. The tip 3 is blocked by two sets of stop 8, effectively preventing the tip 3 from damaging the patient's internal organs. The position of the stop 8 after it extends can also be fixed by the fixing component to prevent the tip 3 from extending out of the two sets of stop 8 when the device moves due to the patient's body movement or external factors, thus improving its protective effect.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above. Modifications or improvements can be made to this utility model, which is obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this utility model fall within the scope of protection claimed by this utility model.

Claims

1. A drainage puncture device, characterized by, Including: The tube (1) has a hollow structure, with a partition in the middle and a pointed tip (3) at its end. Mounting base (7) is slidably disposed inside the tube body (1). Two sets of stops (8) are provided on the mounting base (7). The ends of the stops (8) are smooth arc surfaces and extend out of the tube body (1) to block the tip (3). An abutment assembly is detachably disposed at the end of the tube body (1), and an elastic element (13) is provided between the abutment assembly and the mounting base (7); and A fixing component is disposed on the tube body (1) and connected to the mounting base (7) to selectively lock or unlock the position of the mounting base (7) after the stop (8) extends out of the tube body (1).

2. The drainage puncturing device according to claim 1, wherein The abutment component includes: Connecting seat (15), the tube body (1) is provided with a connecting shell (2), the connecting seat (15) is screwed into the connecting shell (2); and The abutment frame (12) has a mounting ring (14) on top. The mounting ring (14) is rotatably disposed at the bottom of the connecting seat (15) and abuts against the end of the elastic member (13).

3. The drainage puncturing device according to claim 1, wherein: The baffle (8) is provided with a drainage pipe (9) inside, and the ends of the two sets of drainage pipes (9) are connected by a main pipe (10), which extends out of the pipe body (1).

4. The drainage puncture device according to claim 3, characterized in that: The block (8) is also provided with a protective pipe (11), and the main pipe (10) passes through the protective pipe (11).

5. The drainage puncture device according to claim 4, characterized in that, The fixing component includes: A connecting ring (16) is rotatably fitted onto the protective tube (11) along its axis, and an adjusting post (17) is provided on the connecting ring (16); and A C-shaped groove (4) is opened on the side wall of the tube body (1) away from the tip (3). One end of the C-shaped groove (4) is provided with a snap-fit ​​groove (5), and the other end is provided with an extension groove (6) that extends to the outside. The adjusting column (17) is snapped in the snap-fit ​​groove (5).

Citation Information

Patent Citations

  • Peritoneal drainage puncture needle

    CN203153887U