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Puncture needle for minimally invasive treatment

A puncture needle and needle tip technology, applied in the field of puncture needles, can solve the problems of drug accumulation, repeated puncture, poor dispersion, etc., and achieve the effects of enhancing ultrasonic reflection strength, facilitating degradation and absorption, and reducing the risk of clogging

Inactive Publication Date: 2011-11-09
GENERAL HOSPITAL OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Most of the existing puncture needles are made of metal materials, which cannot be indwelled in the body. Repeated puncture is required for multiple administrations. The pain of the patients also increases the difficulty of treatment.
[0006] 2. The existing soft cannula is difficult to use imaging to monitor its position in the body, and the indwelling tube usually needs a built-in guide wire and is used in combination with a skin expansion needle. The operation process is complicated and time-consuming, which is not conducive to the application of rapid first aid on the spot
[0007] 3. Existing puncture needles cannot complete the one-time treatment of large-area trauma focus, and often need multiple points and multiple punctures
[0008] 4. The existing puncture needles can be divided into single-hole needles and three-hole needles. The diameter and distribution of the needle holes have not been clinically studied according to the properties and concentrations of the injected drugs, and the hemostatic drugs for injection currently used in clinical When using the above-mentioned needles to inject drugs, it is easy to cause local aggregation and poor diffusion of drugs, which affects the curative effect, and is not conducive to the degradation and absorption of drugs.
[0009] This shows that above-mentioned existing puncture needle obviously still has inconvenience and defect in structure and use, and urgently needs to be further improved

Method used

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  • Puncture needle for minimally invasive treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] see figure 1 As shown, the puncture needle for minimally invasive treatment of the present invention is mainly composed of a metal needle core 1 and a soft sleeve 2 .

[0039] Among them, the soft sleeve 2 is made of medical, hypoallergenic, and moderately soft and hard materials, such as special molecular structure plastics (polyethylene), thermoplastic polyethylene chloroformate (TPU), etc., to reduce tissue damage , to enhance its safety and indwellability, and a coating can also be added to the outer surface of the soft sleeve 2 to reduce adhesion to tissues.

[0040] A plurality of side perforations 21 are cross-distributed at the front of the soft sleeve 2. According to the inner diameter and length of the sleeve, the side perforations 21 can be designed in different numbers, distributions and aperture specifications, and individualized selection can be made according to the location, range and characteristics of the lesion. Make the treatment process more indivi...

Embodiment 2

[0046] see figure 2 As shown, on the basis of the structure of the first embodiment, a metal needle tip 22 can also be fixedly connected to the front end of the soft cannula 2, so as to facilitate imaging monitoring and observation of the indwelling position of the soft cannula 2. The metal needle tip 22 can be made of metal material that is rich in elasticity and not easy to break, cast into sharp and penetrating shapes such as rhombus, slope, and cone, and has multiple radiation effects under ultrasound, making the needle tip more clearly developed. The metal needle core 1 and the metal needle tip 22 of the soft sheath 2 are tightly engaged in such ways as concave and convex, oblique occlusal or plane contact, so as to facilitate puncture and insertion of the needle.

[0047] Preferably, the connection mode of the metal needle point 22 and the soft sleeve 2 can be as follows: Figure 3a , 3b , 3c, the connecting end of the metal needle point 22 is designed as a double-lay...

Embodiment 3

[0049] see Figure 4 As shown, the soft sleeve 2 of the present invention can also be a Y-shaped main and auxiliary pipe structure, and the branch of the auxiliary pipe is about 3cm away from the end of the main pipe afterbody. The needle delivery method of the minimally invasive treatment puncture needle with this structure is the same as that of the first embodiment, that is, the metal needle core 1 is inserted into the main tube of the soft sleeve 2, so that the observation and monitoring can be easily realized while the metal needle core 1 is inserted. Drugs can be injected for timely treatment when it has not been completely pulled out.

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Abstract

The invention relates to a puncture needle for minimally invasive treatment, which comprises a metal needle core and a soft casing, wherein the metal needle core is inserted in the soft casing; the tail part of the soft casing is a syringe connecting part; and the front part of the soft casing is provided with a plurality of side through holes. The puncture needle for minimally invasive treatmenthas the advantages that the puncture needle is convenient to indwell, uniform in drug administration, simple to operate and beneficial to monitoring.

Description

technical field [0001] The invention relates to a puncture needle, in particular to a minimally invasive treatment puncture needle capable of one-time puncture, multiple times and uniform administration. Background technique [0002] As an emerging discipline, interventional medicine uses precision instruments such as puncture needles, catheters, and guide wires for tissue collection, diagnosis, and local treatment of various lesions. It is intuitive, efficient, accurate, simple, minimally invasive, safe, and has few complications. And other characteristics, it has become the third largest therapeutic discipline with the same reputation as internal medicine and surgery. Ultrasound-guided injection in the treatment of trauma to abdominal parenchyma is a new concept of minimally invasive treatment, using contrast-enhanced ultrasound to guide the injection of hemostatic agent into the trauma focus to treat active bleeding. It has obtained definite curative effect, and its hemo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/34
Inventor 唐杰罗渝昆吕发勤李志艳宋青于腾飞焦子育刘强
Owner GENERAL HOSPITAL OF PLA
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