Subcutaneous tunneling device for lumbar cistern drainage tube
By designing a subcutaneous subcutaneous device for the lumbar drainage tube, and utilizing structures such as barbs, adhesive tape, and limiters, the stability problem of the drainage tube during subcutaneous movement is solved, enabling fixation of the drainage tube and observation of the fluid, making it convenient for both children and adults to use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FENGCHENG HOSPITAL FENGXIAN DISTRICT SHANGHAI
- Filing Date
- 2025-03-19
- Publication Date
- 2026-06-26
AI Technical Summary
Existing lumbar cistern drainage tubes are prone to insufficient penetration when inserted subcutaneously or to being pulled out during withdrawal, especially when used by children, as they are prone to dislodgement and leakage, and cannot be effectively secured.
A subcutaneous subcutaneous device for lumbar sac drainage tube was designed, comprising a puncture needle, a drainage tube, barbs, adhesive tape, and a limiter. The barbs prevent the drainage tube from falling out, the adhesive tape fixes it in place, and the limiter limits its position to ensure stability of the drainage tube in the human body. A transparent cap allows observation of the fluid outflow.
It effectively prevents the drainage tube from dislodging and leaking, ensuring the drainage tube remains stable in the body. The transparent cap allows for easy observation of the fluid flow. It is suitable for both children and adults.
Smart Images
Figure CN224403733U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage tube technology, specifically a subcutaneous subcutaneous device for a lumbar sac drainage tube. Background Technology
[0002] Existing devices, when inserting a drainage tube subcutaneously, first use a puncture needle to wrap around the drainage tube and insert it into the lumbar cistern. Then, the puncture needle is withdrawn along the drainage tube to allow the drainage tube to drain cerebrospinal fluid or other fluids from the lumbar cistern. However, there are problems with the coordination between the drainage tube and the puncture needle in existing devices. This can easily lead to insufficient insertion of the drainage tube or the drainage tube being pulled out along with the needle during withdrawal. Furthermore, in actual use, when the device is used between children and adults, children are more prone to drainage tube dislodgement and leakage. A new approach is needed to avoid these problems. Therefore, a subcutaneous insertion device for lumbar cistern drainage tubes that solves the above-mentioned problems is required. Utility Model Content
[0003] To address the shortcomings of existing technologies, this invention provides a subcutaneous subcutaneous device for lumbar sac drainage tubes, which solves the problems mentioned in the background.
[0004] This utility model provides the following technical solution: a subcutaneous subcutaneous device for lumbar sac drainage tube, comprising: a puncture needle, a barb on the left side of the puncture needle, an anti-slip wall on the outer wall of the puncture needle, an access head on the right side of the puncture needle, a rubber ring fitted on the inner wall of the access head, a hand pressure plate fixedly connected to the outer wall of the puncture needle, a fluid guide tube fitted on the inner wall of the puncture needle, a flow hole in the inner cavity of the fluid guide tube, a transparent cover connected to the outer wall of the fluid guide tube, a fluid chamber in the inner cavity of the transparent cover, a pull ring connected to the outer wall of the transparent cover, a drainage tube on the other side of the puncture needle, barbs connected to the outer wall of the drainage tube, a fixing sticker fitted on the outer wall of the drainage tube, an adhesive sticker connected to the outer wall of the fixing sticker, a beveled groove in the inner wall of the fixing sticker, a limiter movably fitted on the outer wall of the drainage tube, and a tether connected to the outer wall of the limiter.
[0005] Preferably, the hand pressure plate is semi-circular and is located on both sides of the right end of the puncture needle.
[0006] Preferably, the rubber ring is made of medical-grade rubber, and the inner wall of the rubber ring is attached to the outer wall of the fluid guide tube.
[0007] Preferably, the inner wall of the transparent cover is provided with a small hole, and the small hole is connected to the inner cavity of the liquid cavity and the flow hole.
[0008] Preferably, the barbs are made of soft rubber and are connected along the outer wall of the left end of the drainage tube.
[0009] Preferably, the adhesive patch has an adhesive strip at its bottom, and the adhesive patch comes into contact with human skin through the adhesive strip.
[0010] Preferably, the length of the tie head is greater than the length of the inclined groove, and the connection between the tie head and the limiter is flexible.
[0011] Preferably, a push plate is fixedly connected to the outer wall of the limiter, and the push plate is disposed on both sides of the limiter.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. This subcutaneous subcutaneous drainage tube device for the lumbar sac utilizes a structure including barbs, a drainage tube, adhesive tape, and a limiting device. This allows the drainage tube to be inserted into the lumen of the puncture needle after the fluid guide tube is pushed out of the needle's cavity. The barbs' hooks ensure the drainage tube remains in the body when the needle is withdrawn. Adhesive tape and a fixing tape are used to secure the portion of the drainage tube exposed on the skin. The limiting device further restricts the position of the fixing tape, preventing the drainage tube from dislodging and leaking.
[0014] 2. This subcutaneous subcutaneous drainage device for the lumbar cistern, through the setting of a puncture needle, a guide tube, a fluid chamber, and a pull ring, allows the guide tube to enter the lumbar cistern simultaneously with the puncture needle. Utilizing the interconnectivity between the flow hole and the inner cavity of the fluid chamber, the fluid overflowing when the lumbar cistern is connected will flow outward through the fluid chamber via the flow hole. Thus, when the fluid flows into the inner cavity of the fluid chamber, the transparency of the transparent cap and the small-diameter groove on the outer wall of the transparent cap allow for precise monitoring of the puncture process. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;
[0017] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0018] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B;
[0019] Figure 5 This is a schematic diagram of the liquid guide tube structure of this utility model.
[0020] In the diagram: 1. Puncture needle; 2. Spike tip; 3. Anti-slip wall; 4. Connecting head; 5. Rubber ring; 6. Hand pressure plate; 7. Fluid guide tube; 8. Flow hole; 9. Transparent cover; 10. Fluid chamber; 11. Pull ring; 12. Drainage tube; 13. Barb; 14. Fixing tape; 15. Adhesive tape; 16. Angled groove; 17. Limiter; 18. Tie head; 19. Push plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-5 A subcutaneous subcutaneous device for lumbar sac drainage includes: a puncture needle 1, a puncture head 2 on the left side of the puncture needle 1, an anti-slip wall 3 on the outer wall of the puncture needle 1, an access head 4 on the right side of the puncture needle 1, a rubber ring 5 fitted onto the inner wall of the access head 4, a hand pressure plate 6 fixedly connected to the outer wall of the puncture needle 1, a fluid guide tube 7 fitted onto the inner wall of the puncture needle 1, a flow hole 8 opened in the inner cavity of the fluid guide tube 7, and a transparent cover 9 connected to the outer wall of the fluid guide tube 7. The inner cavity of the 9 has a liquid chamber 10. The outer wall of the transparent cover 9 is connected to a pull ring 11. The other side of the puncture needle 1 is provided with a drainage tube 12. The outer wall of the drainage tube 12 is connected to a barb 13. The outer wall of the drainage tube 12 is fitted with a fixing sticker 14. The outer wall of the fixing sticker 14 is connected to an adhesive sticker 15. The inner wall of the fixing sticker 14 has a beveled groove 16. The outer wall of the drainage tube 12 is movably fitted with a limiter 17. The outer wall of the limiter 17 is connected to a tie head 18.
[0023] The hand pressure plate 6 is semi-circular and is located on both sides of the right end of the puncture needle 1. The semi-circular shape of the hand pressure plate 6 on the device allows the puncture needle 1 to be inserted into the human skin when it is inserted by pressing with two fingers using the hand pressure plates 6 on both sides of the puncture needle 1, and pressing with two fingers on both sides of the outer wall of the puncture needle 1 at the same time, thereby realizing the insertion of the device into the human skin by using a four-finger gripping device.
[0024] Among them, the rubber ring 5 is made of medical rubber, and the inner wall of the rubber ring 5 is attached to the outer wall of the liquid guiding tube 7. By using medical rubber, the rubber ring 5 has medical sterility and softness. When the liquid guiding tube 7 is fitted into the inner cavity of the puncture needle 1, the outer wall of the liquid guiding tube 7 is in contact with the inner wall of the rubber ring 5 to increase friction.
[0025] The inner wall of the transparent cover 9 is provided with a small hole, which is connected to the inner cavity of the liquid cavity 10 and the flow hole 8. Because the inner wall of the transparent cover 9 is provided with a small hole, when the puncture needle 1 on the device carries the guide tube 7 into the human body, the liquid in the lumbar sac will flow out through the inner cavity of the liquid cavity 10 through the flow hole 8. Thus, when the liquid passes through the liquid cavity 10, it can be observed with the naked eye. Then, air is first discharged at the small hole, and the discharge of liquid is slowed down.
[0026] The barb 13 is made of soft rubber and is connected to the outer wall of the left end of the drainage tube 12. By using soft rubber, the barb 13 is positioned at the left end of the drainage tube 12. When the drainage tube 12 is in the inner cavity of the puncture needle 1, the left end of the drainage tube 12 is pushed out of the left end of the puncture needle 1. The barb 13 is used to prevent the drainage tube 12 from being pulled out of the body when the puncture needle 1 is withdrawn. When the drainage tube 12 is deeply inserted into the body in the inner cavity of the puncture needle 1, the barb 13 can be used to determine whether it provides resistance when the drainage tube 12 is manually pulled outward.
[0027] The adhesive strip 15 has an adhesive strip at its bottom, and the adhesive strip 15 comes into contact with the human skin. The adhesive strip at the bottom of the adhesive strip 15 allows the drainage tube 12 on the device to be accurately connected to the human lumbar cistern. Due to the flexibility of the drainage tube 12, the fixing sticker 14 works in conjunction with the adhesive strip 15 to attach the part of the drainage tube 12 exposed on the human skin to the human skin, thereby achieving the reinforcement of the exposed part of the drainage tube 12.
[0028] Wherein, the length of the tie head 18 is greater than the length of the inclined groove 16, and the connection between the tie head 18 and the limiter 17 is flexible. Because the length of the tie head 18 on the device is greater than the length of the inclined groove 16, when the fixing patch 14 on the device is pasted on the skin by the adhesive patch 15, the tie head 18 is then inserted into the inner cavity of the inclined groove 16. Under the bending action of the tie head 18, the tie head 18 can be inserted into the outer wall of the drainage tube 12, thereby using the limiter 17 to limit the fixing patch 14 on the other side away from the lumbar sac access point.
[0029] The outer wall of the limiter 17 is fixedly connected to a push plate 19, and the push plate 19 is disposed on both sides of the limiter 17. The device limits the outer wall of the limiter 17 to be fixedly connected to the push plate 19, so that the limiter 17 on the device can be pushed forward by pressing the push plate 19 on both sides with a finger, thereby pushing the tie head 18 into the inner cavity of the fixing sticker 14, so that the tie head 18 cooperates with the limiter 17 to limit the fixing sticker 14.
[0030] The working principle involves first setting up structures such as barbs 13, drainage tube 12, adhesive tape 15, and limiter 17. This allows the drainage tube 12 to enter the inner cavity of the puncture needle 1 after the fluid guide tube 7 is pushed out of the puncture needle 1. The barbs 13, with their hook-like shape, ensure the drainage tube 12 remains inside the body when the puncture needle 1 is withdrawn. The adhesive tape 15, in conjunction with the fixation tape 14, then secures the portion of the drainage tube 12 exposed to the skin. Finally, the limiter 17 restricts the position of the fixation tape 14, preventing the drainage tube from leaking out. In cases of 12-fold dislodgement and leakage, by setting up structures such as the puncture needle 1, the guide tube 7, the liquid chamber 10, and the pull ring 11, the puncture needle 1 on the device is inserted into the lumbar cistern area of the human body, carrying the guide tube 7 in sync. Utilizing the interconnection between the flow hole 8 and the inner cavity of the liquid chamber 10, the liquid overflowing when the lumbar cistern area is connected will flow outward through the flow hole 8 and the liquid chamber 10. Thus, when the liquid flows into the inner cavity of the liquid chamber 10, the transparency of the transparent cover 9 and the small-diameter groove on the outer wall of the transparent cover 9 can be used to accurately understand the puncture situation of the device.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A subcutaneous infiltration device for a lumbar sac drainage tube, characterized in that, include: A puncture needle (1) is provided with a puncture head (2) on its left side, an anti-slip wall (3) on the outer wall of the puncture needle (1), an access head (4) on its right side, a rubber ring (5) fitted onto the inner wall of the access head (4), a hand pressure plate (6) fixedly connected to the outer wall of the puncture needle (1), a liquid guide tube (7) fitted onto the inner wall of the puncture needle (1), a flow hole (8) opened in the inner cavity of the liquid guide tube (7), a transparent cover (9) connected to the outer wall of the liquid guide tube (7), and a liquid outlet (8) opened in the inner cavity of the transparent cover (9). The cavity (10) has a pull ring (11) connected to the outer wall of the transparent cover (9). The other side of the puncture needle (1) is provided with a drainage tube (12). The outer wall of the drainage tube (12) is connected with a barb (13). The outer wall of the drainage tube (12) is fitted with a fixing sticker (14). The outer wall of the fixing sticker (14) is connected with an adhesive sticker (15). The inner wall of the fixing sticker (14) is provided with a slanted groove (16). The outer wall of the drainage tube (12) is movably fitted with a limiter (17). The outer wall of the limiter (17) is connected with a tether (18).
2. The subcutaneous infiltration device for a lumbar sac drainage tube according to claim 1, characterized in that, The hand pressure plate (6) is semi-circular and is located on both sides of the right end of the puncture needle (1).
3. The subcutaneous infiltration device for a lumbar sac drainage tube according to claim 1, characterized in that, The rubber ring (5) is made of medical rubber, and the inner wall of the rubber ring (5) is attached to the outer wall of the liquid guide tube (7).
4. The subcutaneous subcutaneous device for lumbar sac drainage tube according to claim 1, characterized in that, The inner wall of the transparent cover (9) is provided with a small hole, and the small hole is connected to the inner cavity of the liquid cavity (10) and the liquid flow hole (8).
5. The subcutaneous subcutaneous device for lumbar sac drainage tube according to claim 1, characterized in that, The barb (13) is made of soft rubber and is connected along the outer wall of the left end of the drainage tube (12).
6. The subcutaneous subcutaneous device for lumbar sac drainage tube according to claim 1, characterized in that, The adhesive strip is provided at the bottom of the adhesive patch (15), and the adhesive patch (15) comes into contact with human skin through the adhesive strip.
7. The subcutaneous infiltration device for a lumbar sac drainage tube according to claim 1, characterized in that, The length of the tie head (18) is greater than the length of the inclined groove (16), and the connection between the tie head (18) and the limiter (17) is flexible.
8. The subcutaneous subcutaneous device for lumbar sac drainage tube according to claim 1, characterized in that, The outer wall of the limiter (17) is fixedly connected to a push plate (19), and the push plate (19) is disposed on both sides of the limiter (17).