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CN-122004948-A - Shark mouth type sampling device and multi-blade surface needle tip

CN122004948ACN 122004948 ACN122004948 ACN 122004948ACN-122004948-A

Abstract

The invention provides a shark mouth type sampling device and a multi-blade needle point, wherein the shark mouth type sampling device comprises a handle component, a guide component, a multi-blade needle point and a suction component, the multi-blade needle point is detachably arranged on the handle component through the guide component and penetrates through the head part and the tail part of the handle component, the suction component is detachably arranged at the tail part of the handle component and is communicated with the multi-blade needle point, the head end of the multi-blade needle point is provided with a plurality of cutting needles, a plurality of cutting edges and a plurality of cutting openings to form a plurality of cutting edges, the multi-blade needle point is operated by the handle component to cut tissues from a plurality of directions, then the obtained sample tissue is sucked out under the negative pressure action of the suction component, the obtained sample tissue is complete and high in quantity, the cutting is efficient, and the operation time is shortened.

Inventors

  • HUANG KAN
  • JU WENBIN

Assignees

  • 江苏格里特医疗科技有限公司

Dates

Publication Date
20260512
Application Date
20260211

Claims (10)

  1. 1. A multi-faceted needle tip comprising: A main body portion; A cutting part disposed at the top end of the main body part, the cutting part having at least three cutting edges, at least three cutting openings and at least three cutting needles, each of the cutting edges and the cutting openings being located between two adjacent cutting needles, each of the two adjacent cutting needles being separated by the cutting opening, and And the collecting channel is arranged on the main body part and extends to the cutting part, and the sampling tissue strips cut by the cutting part are collected through the collecting channel.
  2. 2. The multi-faceted needle tip of claim 1, further comprising at least three cutting facets, the cutting edges being disposed at the tips of the cutting facets and extending to the tips of adjacent two of the cutting needles, the region between adjacent two of the cutting needles and the cutting edges forming the cutting aperture.
  3. 3. The multi-faceted needle tip of claim 2, wherein the cutting face extends from the cutting edge toward the body portion and the thickness of the cutting face increases progressively toward the body portion.
  4. 4. The multi-faceted needle tip of claim 3, wherein each of the cutting needles comprises a cutting tip and a cutting tail, the cutting tail extending from the cutting tip to the body portion, and the cutting tip having a size that is smaller than a size of the cutting tail.
  5. 5. The multi-faceted needle tip of any one of claims 1 to 4, wherein the cut is U-shaped or V-shaped.
  6. 6. The multi-faceted needle tip of claim 5 wherein the number of said cutting needles, said cutting edges and said cuts is three, three of said cutting needles forming a two-size structure, the longitudinal depths of three of said cuts being different.
  7. 7. A shark mouth-type sampling apparatus comprising: a handle assembly; A guide assembly; A multi-faceted needle tip removably mounted to the handle assembly through the guide assembly and extending through the head and tail of the handle assembly, and The suction assembly is detachably arranged at the tail end of the handle assembly and is communicated with the multi-blade needle point, wherein the head end of the multi-blade needle point is provided with a plurality of cutting needles, a plurality of cutting edges and a plurality of cutting openings to form a plurality of blade surfaces, the handle assembly is used for operating the multi-blade needle point to cut tissues from a plurality of directions, and then the cut sampling tissue strips are sucked out through the negative pressure action of the suction assembly.
  8. 8. The shark mouth-type sampling apparatus of claim 7, further comprising a stylet removably sleeved inside the multi-faceted needle tip such that a tip end of the multi-faceted needle tip fits outside the stylet, guiding penetration of the multi-faceted needle tip into a sampled tissue region.
  9. 9. The shark mouth-type sampling apparatus of claim 8, wherein the multi-blade tip comprises a cutting portion, a body portion, and a collection channel, the body portion being connected to the cutting portion, the cutting portion having at least three cutting edges, at least three cutting ports, and at least three cutting needles, each of the cutting edges, each of the cutting ports, and each of the cutting needles being spaced apart, the collection channel being disposed in the body portion and extending to the cutting portion, the strip of sampled tissue cut by the cutting portion being aspirated through the collection channel by the negative pressure of the aspiration assembly.
  10. 10. The shark mouth-type sampling apparatus of claim 9, wherein the multi-faceted needle tip further comprises at least three cutting facets, the cutting edge being disposed at a top end of the cutting facets and extending to a top end of two adjacent cutting needles, a region between two adjacent cutting needles and the cutting edge forming the cutting mouth.

Description

Shark mouth type sampling device and multi-blade surface needle tip Technical Field The invention relates to the technical field of medical equipment, in particular to a shark mouth type sampling device and a multi-blade surface needle point. Background Biopsy sampling is a key technique for obtaining living tissue for pathological examination and is important for disease diagnosis, classification and treatment. In clinical medical diagnostics, accurate determination of digestive and respiratory diseases is highly dependent on efficient sampling of diseased sites in the body and subsequent laboratory analysis. However, the traditional sampling process not only brings remarkable physiological discomfort and psychological fear to the patient, but also has blind areas, and the sampling depth and the sampling volume are limited, so that the pathological state of the tissue can not be completely reflected. The current clinical wide application includes core puncture needle biopsy and vacuum assisted biopsy systems, but the needle tips of common sampling devices are divided into two types, namely single-point and equal-length three-fork points. The single-point sampling needle is mainly used for fine needle aspiration biopsy, has a simple structure, is a hollow fine needle with an inclined-plane tip, can only acquire cytological samples (scattered cell groups or cell smears) and cannot acquire histological samples (complete strip tissues), so that a doctor is difficult to observe the tissue structure, the accuracy and the breadth of diagnosis are limited, the tumor is difficult to accurately divide or grade, and the false negative rate is relatively high. While the sampling device with the equal-length three-fork-tip structure has advantages in terms of tissue fixation and slip prevention, the disadvantages are quite obvious, mainly including 1. The puncture resistance is high, the single side-by-side sharp teeth simultaneously puncture tissues to bring about larger initial resistance, an operator is required to apply larger force, the operation difficulty is increased, the needle body is easy to bend, 2. The tissue trauma is relatively large, the penetration of the three-fork needle is equivalent to tearing rather than cutting, the damage range of subcutaneous tissues, muscles and vascular nerves is larger, and the bleeding risk is larger, 3. The sample size and the integrity are limited, and the obtained tissue strips are broken, deformed or mechanically damaged due to small cutting force in the process of grabbing the sample, so that the observation and diagnosis of the tissue structure by pathologists are influenced. Therefore, the needle tip has the defects of high operation resistance, high tissue trauma, incomplete sample sampling, influence on the accuracy of disease diagnosis, even the patient needs to be repeatedly sampled to bring about larger damage and the like. Therefore, traditional sampling methods are the cornerstone for disease screening, diagnosis and treatment, however, the prior art still has many limitations, resulting in poor patient experience, low sampling efficiency and even insufficient diagnostic accuracy. That is, current sampling techniques and devices all have a conflict between the integrity of the sample, the ease of operation, and trauma to the patient. Therefore, there is a need in the art for a new sampling device that minimizes patient pain and trauma, reduces operational difficulties and reliance on professional environments, and improves sampling accuracy and consistency to accommodate different clinical sampling needs of the digestive and respiratory systems without sacrificing sampling quality. Disclosure of Invention One advantage of the invention is to provide a shark mouth-type sampling device and a multi-blade tip, wherein the shark mouth-type multi-blade tip has a plurality of cutting surfaces, has good cutting ability, can obtain high-quality and complete tissue samples efficiently and accurately, and has the advantages of both minimally invasive and simple operation. Another advantage of the present invention is to provide a shark mouth-type sampling apparatus and a multi-edged tip, wherein the pain and trauma of the patient can be minimized without sacrificing the sampling quality, avoiding the secondary or multiple punctures of the patient, and reducing the pain of the patient. Another advantage of the present invention is to provide a shark mouth-type sampling apparatus and a multi-bladed tip, wherein the shark mouth-type multi-bladed tip comprises three differently sized tips and a plurality of sharp cutting surfaces, enabling clinically greater tissue volumes. The invention has the advantages that the invention provides the shark mouth type sampling device and the multi-edge surface needle point, the whole tissue is obtained by negative pressure extraction after the needle point is cut, the tissue integrity is maintained to the maximum extent, the obtained samp