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Puncture needle

A puncture needle and needle core technology, applied in the field of puncture needles, can solve problems such as organ or tissue damage, tumor metastasis, etc., and achieve the effects of reducing the probability of metastasis, alleviating pain, and reducing the difficulty of operation.

Pending Publication Date: 2019-05-07
吴忠隐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to overcome the deficiencies of the prior art and provide a puncture needle to solve the problem of easily causing damage to organs or tissues around the target tissue when the puncture needle in the prior art is used for biopsy puncture. And it is also prone to technical problems of tumor metastasis along the needle track

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] a puncture needle such as figure 1 As shown, it includes a needle tube, a pusher 3, a needle core 10 and a needle head 11, the needle tube has an inner thread, the pusher 3 has an outer thread adapted to the inner thread, and the pusher 3 can rotate on the inner thread of the needle tube to realize the Advance and retract functions. The needle tube is connected with the needle head 11 , the needle core 10 is sleeved in the needle head 11 , and the needle core 10 can slide freely relative to the needle head 11 . The pusher 3 is connected with the needle core 10, and the pusher 3 can rotate freely relative to the needle core 10, for example, the pusher 3 is connected with the needle core 10 through a bearing. When the pusher 3 rotates through the thread in the needle tube, the pusher 3 can drive the needle core 10 to advance or retract in the needle head 11 .

[0038] like Image 6 As shown, during the biopsy puncture operation, when the needle 11 reaches the set punct...

Embodiment 2

[0040] As preferably, in order to better realize the present invention, further optimization is carried out on the basis of the above-mentioned embodiment, and the following setting structure is particularly adopted:

[0041] like figure 1 and figure 2 As shown, a first ejection device and a first fixing device 9 are arranged in the needle tube, the first ejection device includes a conversion plug 5 and a first spring 6, the needle core 10 is installed on the conversion plug 5, and the first spring 6 is installed in the pusher between the device 3 and the conversion plug 5. The first fixing device 9 includes a button 91 and a spring 92. The middle of the button 91 is hinged to the outer wall of the needle tube through a column, and the spring 92 is connected between one side of the button a 91 and the outer wall of the needle tube. The other side of 91 is connected to the restraining member 93 . The restraining piece 93 can be a blade or a pin, and the restraining piece 93...

Embodiment 3

[0045] As preferably, in order to better realize the present invention, further optimization is carried out on the basis of the above-mentioned embodiment, and the following setting structure is particularly adopted:

[0046] like Figure 1 to Figure 3 As shown, the needle tube includes an outer tube 1 and an inner tube 2 , and the inner tube 2 is sleeved in the outer tube 1 and can slide freely in the outer tube 1 . A second ejection device and a second fixing device 8 are arranged between the outer tube 1 and the inner tube 2 . The second ejection device includes a second spring 7 , and the second spring 7 is installed on the bottom of the outer tube 1 and the bottom outside of the inner tube 2 between. The second fixing device 8 includes a b button 81 and a b spring 82 . The middle of the b button 81 is hinged to the outer wall of the outer tube 1 through a column, and the b spring 82 is connected between one side of the b button 81 and the outer wall of the outer tube 1 . ...

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Abstract

The present invention discloses a puncture needle, relates to the technical field of medical biopsy sampling devices, and solves technical problems that when a biopsy puncture operation is performed by a puncture needle in the prior art, organs or tissues around a target tissue are easily damaged, and tumor metastasis along a needle track is also liable to occur. The puncture needle comprises a needle tube, a pusher, a needle core and a needle head; the needle tube is screwedly connected with the pusher; the needle tube is connected with the needle head; the pusher is movably connected with the needle core; and the pusher is in screw rotation cooperation with the needle tube to drive the needle core to move forward or backward. Since the pusher is in the screw rotation cooperation with theneedle tube to drive the needle core to move forward or backward, any puncture length of the needle core of the puncture needle can be adjusted and the puncture needle is not limited by puncture interval lengths. Compared with puncture needles in the prior art, the puncture length of the needle core can be accurately controlled to avoid damages to the organs or tissues and reduce probability of the tumor metastasis along the needle track.

Description

technical field [0001] The invention relates to the technical field of medical biopsy sampling devices, in particular, to a puncture needle. Background technique [0002] Biopsy puncture is an important measure and means for clinical diagnosis of tumors. The puncture needle can be used to puncture organs or tissues, and the suspicious tissue is obtained through the biopsy puncture needle for pathological characterization, and further accurate treatment plans are given. Although the puncture process will bring some trauma to the patient, it is the best method for tumor characterization. Generally, puncture needles are often used in human organs or tissues such as the prostate, thorax, and bladder. [0003] The clinically common puncture needles in the prior art cannot adjust the sensitivity of the puncture needles. For example, a common puncture needle is a push-type puncture needle, and its basic unit of length adjustment is 0.5 to 2 centimeters, that is, the length interva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61B10/02
Inventor 吴忠隐
Owner 吴忠隐
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