Double-groove tissue biopsy needle

A tissue biopsy and needle core technology, applied in the field of biopsy needles, can solve the problems of detection and scientific research needs, increase the risk of injury and bleeding, and large differences in pathological results, so as to avoid the risk of injury and bleeding, meet the needs of pathological diagnosis and scientific research, Risk reduction effect

Pending Publication Date: 2020-09-11
李九智 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems mentioned above that repeated positioning and puncture of the current clinical single-slot tissue biopsy needle increases the risk of injury and bleeding, easily causes large differences in pathological results, and cannot meet the needs of pathological detection and scientific research at the same time, the present invention provides a double-slot tissue biopsy The needle, by setting the first groove and the second groove on the biopsy needle, combined with the cutting knife on the needle core and the cutting head at the end of the ticket tube, can avoid repeated positioning and puncture, satisfying the need to puncture at the same pathological position at the same time when taking biopsy tissue Two tissues are obtained to prevent tumor cells from being planted in needle tracts, and the obtained tissues can be used for pathological detection and scientific research needs at the same time, which is convenient to operate and has a wide range of promotion and application value in the field of medical devices

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: A double groove tissue biopsy needle

[0028] Combined with the manual figure 1 to attach Figure 4 As shown, the embodiment of the present invention provides a kind of double-groove tissue biopsy needle, comprises sheath tube 2, sheath handle 1 and needle core 5, and sheath tube 2 is connected with sheath handle 1, and sheath tube 2 is arranged in the same position as sheath tube 2. The needle core 5 adapted to be arranged, the needle core 5 is provided with a first groove 6 and a second groove 7 near the needle head 9 , and the end of the needle core 5 away from the needle head 9 is provided with a needle handle 4 .

[0029] In the present invention, the first groove 6 and the second groove 7 are provided with a cutting knife 8 whose opening direction is opposite to that of the needle core 5, so as to facilitate faster and more accurate removal of tissue cells from the biopsy site.

[0030] In the present invention, the first groove 6 and the second gr...

Embodiment 2

[0033] Embodiment 2: Application of a continuous suture device for intestinal replacement of bladder

[0034] When using the present invention, at first the skin of the part to be tested is routinely sterilized, the puncturing position and the needle insertion direction are selected, and large blood vessels, nerves and important organs are avoided. In front of the inspection site, according to ultrasonic positioning combined with the scale line 10 on the outside of the sheath tube 2, the penetration depth can be accurately controlled, the tumor and the overtube can be fixed, and the needle core 5 is inserted from the sheath handle 1 at the other end of the sheath tube 2. Straight puncture only reaches the expected depth in the pathological tissue, the tissue is embedded in the first groove 6 and the second groove 7 at the same time, the needle handle 4 and the needle core 5 are pulled out, the cutting knife 8 on the needle core 5 and the end of the sheath tube 2 are cut The he...

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Abstract

The invention provides a double-groove tissue biopsy needle. A first groove and a second groove are formed in a biopsy needle, repeated positioning and puncture can be avoided by combining a cutter knife on a stylet and a cutter head at the tail end of a sheath, the requirement that two tissues can be obtained at the same time in the pathological location by once puncture when a biopsy tissue is collected, a tumor cell is prevented from being implanted in needle tracts, and the collected tissue blocks can be subjected to pathological detection and scientific researches. The double-groove tissue biopsy needle is convenient to operate and has a wide popularization and application value in the field of medical equipment.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular, the invention relates to a biopsy needle. Background technique [0002] Biopsy is the abbreviation of "biological tissue pathological examination", also known as surgical pathological examination, which refers to the technique of cutting, forceps or puncture from the patient's body for pathological examination in response to the needs of diagnosis and treatment. Morphological examination of living tissue is an important method for disease diagnosis. Pathological examination of living tissue is mainly used for the identification of tumors and non-neoplastic diseases, benign and malignant tumors, and judgment of the extent and scope of growth, invasion, and metastasis of malignant tumors, and Observing the development degree of the disease or treatment response, etc. According to the different instruments and methods used in the biopsy for pathological examination, there is b...

Claims

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Application Information

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IPC IPC(8): A61B10/02
CPCA61B10/0275A61B10/0283
Inventor 李九智刘彼得
Owner 李九智
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