Fascia needle knife with flushing and negative pressure drainage functions
By setting irrigation and drainage holes on the fascia needle knife, combined with a blunt needle, efficient injection and irrigation of medication and drainage of accumulated fluid can be achieved, solving the problems of pain and tissue damage caused by multiple punctures in existing technologies, and improving the reliability and efficiency of treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2026-03-03
AI Technical Summary
Existing fascia needle knife techniques require multiple punctures and injections during release procedures, which increases patient pain, easily damages tissues, lacks drainage function, and generally results in poor treatment outcomes.
A fascia needle knife is designed, equipped with an irrigation hole, a drainage hole, an irrigation lumen, and a drainage lumen. Combined with a blunt needle, it enables drug injection irrigation and negative pressure drainage, reducing the number of punctures and avoiding tissue damage.
It achieves efficient injection and flushing of medication and drainage of accumulated fluid, reducing patient suffering, improving treatment efficiency, and reducing the risk of tissue damage.
Smart Images

Figure CN223958862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the design and application of fascia needle knife, and more specifically to a fascia needle knife with irrigation and negative pressure drainage functions. Background Technology
[0002] Closed release surgery is a treatment method that integrates the basic theories of traditional Chinese medicine with the basic surgical anatomy theories of Western medicine. When performing closed release surgery, fascial needle knife is used for operation. At the same time as release, various drug solutions are often injected and rinsed to achieve the effects of anesthesia, anti-inflammation, and blood circulation promotion and stasis removal, so as to achieve better clinical treatment results.
[0003] In general, when performing a release technique, the traditional method involves making incisions at the release site. Make a breach, and then make a breach The location is where the flushing solution or medication is injected through the injection needle, then... The injected medication is then withdrawn again to complete one flushing and anti-inflammatory procedure. This process is repeated multiple times to achieve the therapeutic effects of fluid aspiration, anti-inflammatory treatment, and promoting blood circulation.
[0004] Existing injection needles, such as the Chinese patent: An Injection Needle (Authorization Announcement No.: CN 214761350U), disclose a needle knife that can perform both loosening and injection operations by adding an injection tube and setting a liquid outlet on the needle body, thus solving the shortcoming of existing needle knives that cannot perform loosening and injection simultaneously.
[0005] The above-mentioned loosening operation has the following shortcomings and disadvantages:
[0006] 1. The need for multiple punctures, injections, and aspirations with the injection needle not only increases the patient's pain but also easily causes accidental damage to nerves, tendons, and muscles during the puncture process, affecting the release process.
[0007] 2. Existing needle knives can only perform injections and have no drainage function. Furthermore, they require aspiration using an injection needle, resulting in generally poor treatment outcomes.
[0008] This technical solution is based on the existing technology and further improves and optimizes the structure of the existing fascial needle knife. It can not only realize the injection and flushing of medicine during the release operation, but also realize the drainage and output of the injected medicine and the accumulated fluid in the site. It is more practical and reliable to operate and more conducive to the treatment operation. Utility Model Content
[0009] This utility model discloses a fascia needle knife with flushing and negative pressure drainage functions, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the existing technology.
[0010] The technical solution adopted in this utility model is as follows:
[0011] A fascia needle knife with irrigation and negative pressure drainage functions includes a fascia needle knife body, a needle tip at the distal end of the fascia needle knife body, an irrigation hole at the needle tip, a drainage hole at the middle of the needle tip, an irrigation cavity and a drainage cavity within the fascia needle knife body, a distal end of the irrigation cavity connected to the irrigation hole, a distal end of the drainage cavity connected to the drainage hole, an injection port connected to the proximal end of the irrigation cavity for connection with an external injection device, and a drainage connection port connected to the proximal end of the drainage cavity for connection with an external negative pressure drainage bottle.
[0012] Furthermore, the needle tip has a blunt, rounded structure.
[0013] Furthermore, there are two flushing holes, which are symmetrically arranged on the left and right sides of the needle tip.
[0014] Furthermore, the distal end of the flushing cavity is provided with a "Y"-shaped bifurcated connecting pipe, which is connected to the two flushing holes respectively.
[0015] Furthermore, a valve body is also provided at the drainage connection port.
[0016] As can be seen from the above description and explanation of this utility model, compared with the prior art, the advantages of this utility model are as follows:
[0017] Advantage 1: By setting up structures such as flushing holes, drainage holes, flushing cavities, and drainage cavities, this utility model can not only realize the injection and flushing of fascia needle knife, but also connect to an external negative pressure drainage device through the drainage connection port to realize negative pressure drainage operation. This changes the existing operation method of using a syringe for multiple puncture injections and extractions, making the operation more practical and reducing the patient's pain.
[0018] Advantage 2: By setting a blunt needle and distributing two flushing holes and drainage holes on the needle, the blunt needle not only makes it easy to insert into the rupture, but also makes it less likely to cause damage to tissues, nerves, tendons and muscles. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 This is a partially enlarged structural schematic diagram of this utility model.
[0021] The components include: fascia needle knife body 1, irrigation cavity 11, bifurcated connecting tube 111, drainage cavity 12, needle 2, irrigation hole 3, drainage hole 4, injection interface 5, drainage connection port 6, and valve body 61. Detailed Implementation
[0022] The specific embodiments of this utility model will be further described and illustrated below with reference to the accompanying drawings.
[0023] like Figure 1 and Figure 2 As shown, a fascia needle knife with irrigation and negative pressure drainage functions includes a fascia needle knife body 1. A needle tip 2 is provided at the distal end of the fascia needle knife body 1. The needle tip 2 has a blunt structure and two irrigation holes 3, symmetrically arranged on the left and right sides of the needle tip 2. A drainage hole 4 is provided at the middle position of the needle tip 2. An irrigation cavity 11 and a drainage cavity 12 are provided inside the fascia needle knife body 1. The distal end of the irrigation cavity 11 is connected to the irrigation hole 3, and the distal end of the drainage cavity 12 is connected to the drainage hole 4. An injection interface 5 is connected to the proximal end of the irrigation cavity 11, which is connected to an external injection device. A drainage connection port 6 is connected to the proximal end of the drainage cavity 12, which is connected to an external negative pressure drainage bottle. The distal end of the flushing chamber 11 is provided with a "Y"-shaped bifurcated connecting pipe 111, which is connected to the two flushing holes 3 respectively. A valve body 61 is also provided at the drainage connection port 6.
[0024] When using:
[0025] First, an incision is made at the site of release. Then, the fascia needle knife body 1 is slowly inserted into the incision. Medication is injected into the injection port 5 using a syringe to flush and disinfect the release area. Next, the drainage connection port 6 is connected to an external negative pressure drainage bottle. The valve 61 at the drainage connection port 6 is then opened, allowing negative pressure drainage to drain the injected medication and the accumulated fluid from the release area. This cycle of injection and drainage is repeated multiple times to complete the treatment of fluid removal, inflammation reduction, and flushing at the release site. Finally, the fascia needle knife body 1 is withdrawn, completing the treatment procedure.
[0026] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.
Claims
1. A fascia needle knife with flushing and negative pressure drainage functions, characterized in that: The application relates to a fascia needle-knife body, a needle head is arranged at the distal end of the fascia needle-knife body, a flushing hole is arranged on the needle head, a drainage hole is arranged at the middle position of the needle head, a flushing pipe cavity and a drainage pipe cavity are arranged in the fascia needle-knife body, the distal end of the flushing pipe cavity is connected with the flushing hole, the distal end of the drainage pipe cavity is connected with the drainage hole, an injection interface is arranged at the proximal end of the flushing pipe cavity, the injection interface is connected with an external injection device, a drainage connecting interface is arranged at the proximal end of the drainage pipe cavity, and the drainage connecting interface is connected with an external negative pressure drainage bottle.
2. The fascia needle knife with flushing and negative pressure drainage function according to claim 1, characterized in that: The needle head is a round blunt structure.
3. The fascia needle knife with flushing and negative pressure drainage function according to claim 1, characterized in that: The flushing holes are two and are symmetrically arranged on the left and right sides of the needle head.
4. The fascia needle knife with flushing and negative pressure drainage function according to claim 3, characterized in that: The distal end of the flushing pipe cavity is provided with a Y-shaped bifurcated connecting pipe which is connected with the two flushing holes respectively.
5. The fascia needle knife with flushing and negative pressure drainage function according to claim 1, characterized in that: A valve body is further arranged at the drainage connecting interface.
Citation Information
Patent Citations
Injection needle knife
CN214761350U