CN211094310U - Biopsy needle inner needle and biopsy needle with same - Google Patents
Biopsy needle inner needle and biopsy needle with same Download PDFInfo
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- CN211094310U CN211094310U CN201921587706.7U CN201921587706U CN211094310U CN 211094310 U CN211094310 U CN 211094310U CN 201921587706 U CN201921587706 U CN 201921587706U CN 211094310 U CN211094310 U CN 211094310U
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- biopsy needle
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Abstract
The utility model relates to a biopsy needle inner needle and be equipped with its biopsy needle, biopsy needle inner needle include cutting portion and syringe needle, and the ascending one end of cutting side of cutting portion is located to the syringe needle, and the external diameter of the cross section of the cutting side of syringe needle perpendicular to cutting portion is more than or equal to 1 mm. Above-mentioned biopsy needle inner needle compares sharp-pointed syringe needle among the prior art, and the shape of syringe needle is more blunt, consequently can avoid impaling human organs such as testicle, avoids producing unnecessary injury to the human body.
Description
Technical Field
The utility model relates to the field of medical equipment, especially relate to a biopsy needle inner needle and be equipped with its biopsy needle.
Background
The biopsy needle is widely used in the medical field as a medical instrument for sampling and sucking cells of a living tissue of a pyramidal tumor, an unknown tumor, and the like of various organs such as a kidney, a liver, a lung, a breast, a thyroid, a prostate, a pancreas, a testis, a uterus, an ovary, a body surface, and the like.
When the biopsy needle is applied to testicle biopsy, because the volume of the testicle is small and the tip of the biopsy needle is very sharp, when the biopsy needle is used for sampling the testicle, the biopsy needle easily pierces the testicle, so that serious penetrating injury is generated on the testicle, and unnecessary injury is brought to the body of a patient.
SUMMERY OF THE UTILITY MODEL
Accordingly, it is necessary to provide a biopsy needle inner needle capable of preventing penetration of a testis, which is a problem that the testis is easily broken down when sampling the testis in biopsy, and a biopsy needle provided with the same.
The utility model provides a biopsy needle inner needle, biopsy needle inner needle includes cutting portion and syringe needle, the syringe needle is located the ascending one end of cutting direction of cutting portion, the syringe needle perpendicular to the external diameter of the cross section of cutting direction of cutting portion is more than or equal to 1 mm.
Above-mentioned biopsy needle inner needle compares sharp-pointed syringe needle among the prior art, and the shape of syringe needle is more blunt, consequently can avoid impaling human organs such as testicle, avoids producing unnecessary injury to the human body.
In one embodiment, the needle has a dimension of 6mm in the cutting direction of the cutting portion.
In one embodiment, the shape of a cross section of the needle perpendicular to the cutting direction of the cutting portion is circular.
In one embodiment, the smallest outer diameter of the cutting portion is smaller than the outer diameter of the needle.
In one embodiment, the cutting part is provided with scale marks along the cutting direction of the cutting part.
In one embodiment, the maximum measurement length of the graduation marks is 15 mm.
A biopsy needle comprises the biopsy needle inner needle.
In one embodiment, the biopsy needle further comprises an outer biopsy needle sleeve which is sleeved outside the inner biopsy needle, and the outer biopsy needle and the inner biopsy needle are relatively telescopic to change the length of the inner biopsy needle extending out of the outer biopsy needle.
In one embodiment, a tissue receiving space is formed between the cutting portion received in the outer needle of the biopsy needle and the outer needle of the biopsy needle.
In one embodiment, the biopsy needle further comprises a telescopic structure, the telescopic structure is arranged at one end of the outer biopsy needle, and the telescopic structure is used for pushing the outer biopsy needle to telescope relative to the inner biopsy needle.
Drawings
Fig. 1 is a front view of a biopsy needle according to an embodiment of the present invention;
FIG. 2 is a side view of the biopsy needle of FIG. 1.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, a biopsy needle 100 according to an embodiment of the present invention is used to puncture a body organ such as testis to extract a desired tissue.
With continued reference to fig. 1 and 2, the biopsy needle 100 includes an inner biopsy needle 20, an outer biopsy needle 40, and a telescoping structure 60, wherein the telescoping structure 60 allows the outer biopsy needle 40 to telescope relative to the inner biopsy needle 20 to complete tissue harvesting. Since the specific structure of the telescopic structure 60 is not a main improvement point of the present invention, it will not be described herein.
The biopsy needle 20 includes a cutting portion 21 and a needle head 23 provided at one end of the cutting portion 21. The cutting portion 21 is in a slender and flat strip-shaped structure, the width of the cutting portion 21 is approximately 1mm, and the thickness of the cutting portion 21 is much smaller than the width. Thus, the cutting part 21 can be inserted into the testis in the length direction thereof to cut the testis tissue.
In some embodiments, the cutting portion 21 is provided with graduation lines 212 along the cutting direction, and the maximum measuring length of the graduation lines 212 is 15 mm. Like this, when cutting portion 21 stretched into the testicle inside, the operator can obtain the inside degree of depth of cutting portion 21 insertion testicle directly perceivedly according to scale mark 212 to accurate control depth of inserting needle obtains better puncture effect. It is understood that the maximum measuring length of the graduation marks 212 is not limited, and may be set to different values according to the length of the cutting part 21.
The needle 23 is arranged at one end of the cutting part 21, the outer diameter of the cross section of the needle 23 perpendicular to the cutting direction of the cutting part 21 is larger than or equal to 1mm, and the size of the needle 23 in the cutting direction of the cutting part 21 is 6 mm. Therefore, the utility model discloses a needle head 23 of biopsy needle inner needle 20 compares sharp-pointed needle head among the prior art, and the shape of needle head 23 is duller, consequently can avoid impaling human organs such as testicle, avoids producing the unnecessary injury to the human body.
In some embodiments, the cross-section of the needle 23 perpendicular to the cutting direction of the cutting part 21 has a circular shape, thereby allowing the needle 23 to enter the testis more smoothly. It is to be understood that the shape of the cross section of the needle 23 perpendicular to the cutting direction of the cutting part 21 is not limited thereto, and may be provided in various shapes such as a polygon as needed.
Before the biopsy needle 100 is used to perform a puncture, a small opening is made in the testis using a sharp instrument such as a syringe needle 23, and the biopsy needle 100 is inserted, it is understood that in some embodiments, an 18G (1.3mm × 32mm) syringe needle 23 opening is used.
The outer biopsy needle 40 is sleeved outside the inner biopsy needle 20, and the telescopic structure 60 is connected to the outer biopsy needle 40 to push the outer biopsy needle 40 to telescope relative to the inner biopsy needle 20, so as to change the length of the inner biopsy needle 20 extending out of the outer biopsy needle 40. In this way, after the cutting portion 21 of the inner biopsy needle 20 is at least partially inserted into the testis, the operator can operate the telescopic structure 60 to push the outer biopsy needle 40 to move toward the needle head 23 of the inner biopsy needle 20, so as to cooperate with the cutting portion 21 to obtain the testis tissue.
Further, the minimum outer diameter of the cutting portion 21 is smaller than the outer diameter of the needle head 23 and the inner diameter of the outer needle 40 of the biopsy needle. When the cutting part 21 is at least partially positioned in the outer needle 40, a tissue receiving space is formed between the cutting part 21 positioned in the outer needle 40 and the outer needle 40, so that cut testicle tissue can be received in the tissue receiving space and finally separated from the testicle as the biopsy needle 100 is removed.
The biopsy needle 100 described above is used as follows;
firstly, a small opening is arranged on a human organ such as a testis and the like by adopting an instrument such as an injector needle and the like. Then the needle head 23 and the cutting part 21 of the biopsy needle inner needle 20 are inserted through the small opening, and the length of the cutting part 21 extending into the organ is observed through the scale mark 212 on the cutting part 21 during the needle inserting process, so that the needle inserting length is accurately controlled.
When the needle insertion depth reaches the preset needle insertion depth, the telescopic structure 60 is operated to push the outer biopsy needle 40 to move towards the needle head 23 of the inner biopsy needle 20, so as to cooperate with the cutting part 21 to obtain testicle tissue, and the testicle tissue is cut and contained in the tissue containing space.
Finally, the biopsy needle 100 is removed, and the retractable structure 60 is manipulated to extend the cutting portion 21 of the inner biopsy needle 20 out of the outer biopsy needle 40, thereby obtaining testicular tissue on the cutting portion 21.
The biopsy needle 100 can avoid serious damage to the testis due to penetration of the testis because the needle tip 23 of the needle 20 is relatively blunt. Furthermore, since the cutting portion 21 is provided with the graduation line 212, the needle insertion depth can be controlled according to the graduation line 212, thereby achieving a better puncture effect.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a biopsy needle inner needle which characterized in that, biopsy needle inner needle includes cutting portion and syringe needle, the syringe needle is located the ascending one end of cutting direction of cutting portion, the syringe needle perpendicular to the external diameter of the cross section of cutting direction of cutting portion is more than or equal to 1 mm.
2. The biopsy needle inner needle according to claim 1, wherein a size of the needle head in a cutting direction of the cutting portion is 6 mm.
3. The biopsy needle inner needle according to claim 2, wherein a cross-sectional shape of the needle head perpendicular to a cutting direction of the cutting portion is circular.
4. The biopsy needle inner needle according to claim 1, wherein a minimum outer diameter of the cutting portion is smaller than an outer diameter of the needle head.
5. The biopsy needle inner needle according to claim 1, wherein the cutting portion is provided with graduation lines in a self-cutting direction.
6. The biopsy needle inner needle according to claim 5, wherein a maximum measurement length of the graduation marks is 15 mm.
7. A biopsy needle comprising the biopsy needle inner needle according to any one of claims 1 to 6.
8. The biopsy needle of claim 7, further comprising an outer biopsy needle hub disposed outside the inner biopsy needle, the outer biopsy needle hub and the inner biopsy needle hub being relatively retractable to vary the length of the inner biopsy needle hub extending beyond the outer biopsy needle hub.
9. The biopsy needle of claim 8, wherein the cutting portion received within the outer biopsy needle forms a tissue receiving space with the outer biopsy needle.
10. The biopsy needle of claim 8, further comprising a telescoping structure disposed at an end of the outer biopsy needle for urging the outer biopsy needle to telescope relative to the inner biopsy needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921587706.7U CN211094310U (en) | 2019-09-23 | 2019-09-23 | Biopsy needle inner needle and biopsy needle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921587706.7U CN211094310U (en) | 2019-09-23 | 2019-09-23 | Biopsy needle inner needle and biopsy needle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211094310U true CN211094310U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921587706.7U Active CN211094310U (en) | 2019-09-23 | 2019-09-23 | Biopsy needle inner needle and biopsy needle with same |
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| Country | Link |
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| CN (1) | CN211094310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112914619A (en) * | 2021-01-26 | 2021-06-08 | 焦大勇 | Testicle biopsy device |
-
2019
- 2019-09-23 CN CN201921587706.7U patent/CN211094310U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112914619A (en) * | 2021-01-26 | 2021-06-08 | 焦大勇 | Testicle biopsy device |
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