CN210541648U - Safe and efficient rotary biopsy needle - Google Patents

Safe and efficient rotary biopsy needle Download PDF

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Publication number
CN210541648U
CN210541648U CN201921014689.8U CN201921014689U CN210541648U CN 210541648 U CN210541648 U CN 210541648U CN 201921014689 U CN201921014689 U CN 201921014689U CN 210541648 U CN210541648 U CN 210541648U
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China
Prior art keywords
needle
needle tubing
breach
tubing
safe
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Application number
CN201921014689.8U
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Chinese (zh)
Inventor
王荣军
孙家茂
张晶
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Hoz Minimally Invasive Medical Technology Beijing Co ltd
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Hoz Minimally Invasive Medical Technology Beijing Co ltd
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Priority to CN201921014689.8U priority Critical patent/CN210541648U/en
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Abstract

The embodiment of the utility model discloses rotatory biopsy needle of safe efficient relates to medical instrument technical field, and its technical scheme includes that interior needle tubing and cover establish the outer needle tubing outside interior needle tubing, the other end opening is sealed to the one end of outer needle tubing, interior needle tubing can the intraductal slip of outer needle tubing has seted up first breach on the one end lateral wall that outer needle tubing is close to the blind end, corresponds first breach has seted up the second breach on the lateral wall of inner needle tubing, and through rotatory interior needle tubing, first breach and second breach can coincide completely or stagger completely. The biopsy needle is used for solving the problem of inconvenience in sampling caused by large volume of the biopsy needle in the prior art.

Description

Safe and efficient rotary biopsy needle
Technical Field
The embodiment of the utility model provides a relate to medical instrument technical field, concretely relates to rotatory biopsy needle of safe efficient.
Background
The traditional method for biopsy of human tissue in the past is an operative incision method, and the tissue is taken out for biopsy through an operation, and the method has the defects of large wound area, high cost and great pain of patients.
In the existing craniocerebral operation process, the proportion of minimally invasive robotic surgery is increasing. The development demand of corresponding surgical instruments is more and more vigorous.
The biopsy needle in the prior art is large in size, inconvenient to sample and high in cost.
The product is suitable for brain tissue and cell biopsy. Percutaneous puncture under ultrasound, CT guidance, and rotational cutting and aspiration to obtain specimens of diseased tissue for pathological analysis. The sampling operation is more convenient, and the biopsy needle is small in size and low in cost.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a safe efficient rotatory biopsy needle to solve among the prior art because the biopsy needle is bulky and the inconvenient problem of sample that leads to.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
according to the embodiment of the utility model provides a rotatory biopsy needle of safe efficient, its technical scheme main points include that interior needle tubing and cover establish the outer needle tubing outside interior needle tubing, the other end opening is sealed to the one end of outer needle tubing, interior needle tubing can the intraductal slip of outer needle tubing has seted up first breach on the one end lateral wall that outer needle tubing is close to the blind end, corresponds first breach has seted up the second breach on the lateral wall of inner needle tubing, and through rotatory interior needle tubing, first breach and second breach can coincide completely or stagger completely.
Furthermore, an outer needle seat is fixedly arranged at one end, far away from the first notch, of the outer needle tube.
Furthermore, an inner needle seat is fixedly arranged at one end, far away from the second notch, of the inner needle tube, and when the inner needle tube is inserted into the outer needle tube, the inner needle seat is located at one end, far away from the first notch, of the outer needle seat.
Further, the closed end of the outer needle tube is semicircular.
Furthermore, the gap between the inner needle tube and the outer needle tube is 0.05 mm-0.2 mm.
Furthermore, knurling is processed on the inner needle base.
Furthermore, knurling is processed on the outer needle base.
The embodiment of the utility model provides a have following advantage:
the embodiment of the utility model provides a through the interior needle tubing that sets up, outer needle tubing and set up second breach and first breach on interior needle tubing and outer needle tubing, when using, in inserting outer needle tubing with interior needle tubing, and rotatory interior needle tubing, make first breach and second breach coincidence completely, then place the position that needs the biopsy with the biopsy needle, can inhale or lean on tissue self pressure with the syringe, press the tissue in the interior needle tubing from the second breach, then rotate interior needle tubing, the tissue will be under the effect of the shearing force that forms between interior needle tubing and the outer needle tubing, cut, then needle tubing in the outside pulling, the tissue just is taken out, a case analysis and the like, the operation is comparatively convenient, and patient's the surface of a wound is less.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic view of an overall structure of a safe and efficient rotary biopsy needle provided in an embodiment of the present invention.
In the figure: 1. an inner needle tube; 11. a second notch; 2. an outer needle tube; 3. an outer needle base; 4. an inner needle seat.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
A safe and efficient rotary biopsy needle is shown in figure 1 and comprises an inner needle tube 1 and an outer needle tube 2 sleeved outside the inner needle tube 1, wherein one end of the outer needle tube 2 is closed, the other end of the outer needle tube 2 is opened, the inner needle tube 1 can be inserted into the outer needle tube 2 from the open end of the outer needle tube 2 and can slide in the outer needle tube 2, and the gap between the inner needle tube 1 and the outer needle tube 2 is 0.05-0.2 mm.
The closed end of the outer needle tube 2 is semicircular, is extruded and preformed by the circular tube body, and is welded and formed by laser welding.
An outer needle base 3 is fixedly arranged at the opening end of the outer needle tube 2. The end of the inner needle tube 1 far away from the closed end of the outer needle tube 2 is fixedly provided with an inner needle seat 4, and when the inner needle tube 1 is inserted into the outer needle tube 2, the inner needle seat 4 is positioned at one side of the outer needle seat 3 far away from the closed end of the outer needle tube 2.
The outer needle tube 2 is provided with a first notch on the side wall of one end close to the closed end, the first notch corresponds to the first notch, the second notch 11 is arranged on the side wall of the inner needle tube 1, and when the inner needle tube 1 is positioned in the outer needle tube 2, the first notch and the second notch 11 can be completely overlapped or completely staggered through rotating the inner needle tube 1.
Knurling is processed on the inner needle base 4 and the outer needle base 3, so that the needle holder is attractive and convenient to use.
When in use, the inner needle tube 1 is inserted into the outer needle tube 2, the inner needle tube 1 is rotated to make the first gap and the second gap 11 completely coincide, then the biopsy needle is placed at the position needing biopsy, the tissue can be pressed into the inner needle tube 1 from the second gap 11 by sucking with an injector or depending on the pressure of the tissue, then the inner needle tube 1 is rotated, the tissue is cut under the action of the shearing force formed between the inner needle tube 1 and the outer needle tube 2, then the inner needle tube 1 is pulled outwards, and the tissue is taken out for case analysis and the like.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (7)

1. A safe and efficient rotary biopsy needle, characterized in that: including interior needle tubing (1) and cover establish needle tubing (1) outer needle tubing (2) in, the one end of needle tubing (2) seals other end opening, interior needle tubing (1) can slide in needle tubing (2) outside, first breach has been seted up on the one end lateral wall that outer needle tubing (2) are close to the blind end, corresponds first breach has seted up second breach (11) on the lateral wall of needle tubing (1) including, through needle tubing (1) in the rotation, first breach and second breach (11) can coincide completely or stagger completely.
2. A safe and efficient rotary biopsy needle according to claim 1, wherein: an outer needle seat (3) is fixedly arranged at one end, far away from the first gap, of the outer needle tube (2).
3. A safe and efficient rotary biopsy needle according to claim 2, wherein: the inner needle tube (1) is far away from one end of the second notch (11) is fixedly provided with an inner needle seat (4), and when the inner needle tube (1) is inserted into the outer needle tube (2), the inner needle seat (4) is located the outer needle seat (3) is far away from one end of the first notch.
4. A safe and efficient rotary biopsy needle according to claim 1, wherein: the closed end of the outer needle tube (2) is semicircular.
5. A safe and efficient rotary biopsy needle according to claim 1, wherein: the clearance between the inner needle tube (1) and the outer needle tube (2) is 0.05 mm-0.2 mm.
6. A safe and efficient rotary biopsy needle according to claim 2, wherein: knurling is processed on the outer needle base (3).
7. A safe and efficient rotary biopsy needle according to claim 3, wherein: knurling is processed on the inner needle base (4).
CN201921014689.8U 2019-07-01 2019-07-01 Safe and efficient rotary biopsy needle Active CN210541648U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921014689.8U CN210541648U (en) 2019-07-01 2019-07-01 Safe and efficient rotary biopsy needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921014689.8U CN210541648U (en) 2019-07-01 2019-07-01 Safe and efficient rotary biopsy needle

Publications (1)

Publication Number Publication Date
CN210541648U true CN210541648U (en) 2020-05-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921014689.8U Active CN210541648U (en) 2019-07-01 2019-07-01 Safe and efficient rotary biopsy needle

Country Status (1)

Country Link
CN (1) CN210541648U (en)

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