CN212521953U - percutaneous renal biopsy needle - Google Patents
percutaneous renal biopsy needle Download PDFInfo
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- CN212521953U CN212521953U CN202021273262.2U CN202021273262U CN212521953U CN 212521953 U CN212521953 U CN 212521953U CN 202021273262 U CN202021273262 U CN 202021273262U CN 212521953 U CN212521953 U CN 212521953U
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- needle
- puncture needle
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Abstract
一种经皮肾穿刺活检取样针，包括穿刺针和穿刺针套，穿刺针穿插在穿刺针套内，并可相对于穿刺针套移动，穿刺针具有穿刺生物体组织的针主体，在针主体的一端设有刺穿生物体组织的针头，针头伸出于穿刺针套的相应端，在针主体的另一端设有可相对于穿刺针套按压的按压部；在穿刺针套的远离针头的一端设有与按压部相配合的用于定位穿刺针伸入肾组织内部深度的限制部；在与针头相邻的针主体相邻段上设有至少一个用于获取肾组织的第一取样凹部；当将按压部调到最低点时，针头和与第一取样凹部都伸入到肾组织内，并通过第一取样凹部获取肾组织样品。本实用新型可以实现在经皮肾穿刺造瘘术或做经皮肾穿刺碎石术时，可同时为经皮肾穿刺活检术取样的目的。
A percutaneous renal biopsy sampling needle, comprising a puncture needle and a puncture needle cover, the puncture needle is inserted into the puncture needle cover and can move relative to the puncture needle cover, the puncture needle has a needle body for puncturing biological tissue, and the puncture needle is in the needle body. One end of the needle is provided with a needle for piercing biological tissue, the needle protrudes from the corresponding end of the puncture needle cover, and the other end of the needle body is provided with a pressing part that can be pressed relative to the puncture needle cover; One end is provided with a restriction part matched with the pressing part for locating the depth of the puncture needle extending into the kidney tissue; at least one first sampling concave part for obtaining kidney tissue is provided on the adjacent section of the needle body adjacent to the needle head ; When the pressing part is adjusted to the lowest point, the needle and the first sampling concave part both protrude into the kidney tissue, and the kidney tissue sample is obtained through the first sampling concave part. The utility model can realize the purpose of sampling for percutaneous renal biopsy at the same time during percutaneous renal puncture fistula operation or percutaneous renal puncture lithotripsy.
Description
Technical Field
The utility model belongs to the technical field of a medical instrument and specifically relates to a percutaneous kidney puncture biopsy sampling needle.
Background
The percutaneous nephropuncture surgery generally comprises three types, the first type is percutaneous nephropuncture fistulization (PCN for short); the second is Percutaneous Nephrolithotomy (PNL); the third is percutaneous renal biopsy (PNB). Of these three procedures, percutaneous nephrolithotomy was independent of the first or second procedure; that is, when the doctor needs to perform percutaneous nephrolithotomy to confirm the condition of the patient before performing the first or second operation, the doctor needs to perform percutaneous nephrolithotomy first and then perform the first or second operation according to the condition; if the doctor finds that the percutaneous renal biopsy is needed in a new situation during the first or second operation, the doctor stops the percutaneous renal biopsy first due to the limitation of the instruments for the first or second operation, and decides whether or how to continue the first or second operation according to the situation after the percutaneous renal biopsy is finished. No matter the percutaneous kidney puncture biopsy is performed before the operation or the percutaneous kidney puncture biopsy is performed during the operation, the operation needs to be performed twice on a patient, and the patient is hurt twice.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems, the utility model provides a sampling needle for percutaneous kidney puncture biopsy for the society, which can realize the sampling for the percutaneous kidney puncture biopsy during the percutaneous kidney puncture fistulization or the percutaneous kidney puncture lithotripsy so as to reduce the pain to the patient.
The utility model also provides a puncture sampling method for percutaneous renal puncture operation.
The technical scheme of the utility model is that: the percutaneous renal biopsy sampling needle comprises a puncture needle and a puncture needle sleeve, wherein the puncture needle is inserted in the puncture needle sleeve and can move relative to the puncture needle sleeve; one end of the puncture needle sleeve, which is far away from the needle head, is provided with a limiting part which is matched with the pressing part and is used for positioning the depth of the puncture needle extending into the kidney tissue; at least one first sampling recess for obtaining kidney tissue is arranged on the adjacent section of the needle body adjacent to the needle head; when the pressing part is adjusted to the lowest point, the needle head and the first sampling concave part extend into the kidney tissue, and a kidney tissue sample is obtained through the first sampling concave part.
As an improvement of the utility model, at least a first bulge is arranged on the lower bottom surface of the pressing part, a boss with an area smaller than that of the upper plane is flatly arranged on the upper surface of the limiting part, and at least a first groove and a second groove are arranged on the periphery of the boss; the connecting line of the first groove and the central point O of the boss, and the connecting line of the second groove and the central point O of the boss form an included angle alpha, wherein the included angle alpha is larger than 0 degree and smaller than 180 degrees; the depth of the first groove is greater than that of the second groove; the depth of the first groove is such that the first sampling recess can extend into the kidney tissue for sampling, while the depth of the second groove is only used for normal puncture by a puncture needle.
As an improvement of the utility model, a second bulge is arranged on the lower bottom surface of the pressing part, and the first bulge and the second bulge are symmetrically arranged by taking the central axis of the needle main body as a symmetry axis; a third groove with the same depth as the first groove and a fourth groove with the same depth as the second groove are also arranged on the periphery of the boss; the first groove and the third groove are symmetrically arranged by taking the central axis of the puncture needle sleeve as a symmetry axis; the second groove and the fourth groove are symmetrically arranged by taking the central axis of the puncture needle sleeve as a symmetry axis.
As an improvement of the utility model, the puncture needle and the pressing part are connected into a whole through the connecting part.
As an improvement of the utility model, the connecting part is in a shape of a round table with a big top and a small bottom; the inner diameter and the shape of the hole of the limiting part are matched with those of the truncated cone.
As an improvement, the cross section of the first sampling concave part is triangular or drop-shaped, and the outer periphery of the first sampling concave part is a cutting edge.
As an improvement, the puncture needle sheath is provided with at least two second sampling concave parts on the outer wall of one end of the limiting part.
As an improvement, the puncture needle sleeve is far away from the outer wall of one end of the limiting part is provided with an echo positioning part matched with the ultrasonic instrument.
The utility model also provides a percutaneous kidney puncture biopsy sampling needle, including pjncture needle and puncture needle cover, pjncture needle 1 alternates in the puncture needle cover, and can move for the puncture needle cover, the pjncture needle has the needle main part of puncture organism tissue, is equipped with the syringe needle that pierces through organism tissue at one end of the needle main part, the syringe needle stretches out in the corresponding end of puncture needle cover, is equipped with the pressing part that can press for the puncture needle cover at the other end of the needle main part; one end of the puncture needle sleeve, which is far away from the needle head, is provided with a limiting part which is matched with the pressing part and is used for positioning the depth of the puncture needle extending into the kidney tissue; at least two second sampling concave parts are arranged on the outer wall of one end, far away from the limiting part, of the puncture needle sleeve; the second sampling recess may extend into the renal tissue and a renal tissue sample may be obtained through the second sampling recess.
The utility model also provides a puncture sampling method of the percutaneous renal puncture biopsy sampling needle, which comprises the following steps,
s1, inserting the puncture needle 1 into the puncture needle sleeve, and arranging the pressing part at a normal puncture position; at this time, the first sampling recess 113 is located in the puncture needle sheath, and only the needle head is exposed outside the puncture needle sheath;
s2, inserting the puncture needle 1 into the puncture needle sleeve to penetrate through the skin of the human body to the focus part;
s3, retreating the pressing part by a preset distance, resetting the pressing part on the sampling position, and pressing the puncture needle along the puncture needle sleeve to the focus part to enable the first sampling concave part to extend into the focus;
and S4, withdrawing the puncture needle from the puncture needle sleeve, wherein the first sampling concave part carries out lesion tissues for detection.
As an improvement of the utility model, the step S4 can be replaced by the following step S5,
and S5, retreating the puncture needle, rotating to a normal puncture position, and retreating together with the puncture needle sleeve.
The utility model discloses owing to adopted near the syringe needle of pjncture needle to be equipped with first sample concave part, or/and be equipped with many outer second sample concave parts in the one end of the needle cover of pjncture needle by the syringe needle, like this, the utility model discloses can realize when percutaneous kidney puncture fistulization art or do percutaneous kidney puncture rubble art, can be the purpose of percutaneous kidney puncture biopsy art sample simultaneously.
Drawings
Fig. 1 is a schematic plan view of an embodiment of the present invention.
Fig. 2 is a perspective view of the puncture needle of fig. 1.
Fig. 3 is an enlarged schematic view of a structure at a in fig. 2.
Fig. 4 is a perspective view of the lancet cap of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 4, fig. 1 to 4 disclose a percutaneous renal biopsy sampling needle, which includes a puncture needle 1 and a puncture needle sheath 2, wherein the puncture needle 1 is inserted into the puncture needle sheath 2 and is movable relative to the puncture needle sheath 2, the puncture needle 1 has a needle main body 11 for puncturing biological tissue, one end of the needle main body 11 is provided with a needle head 111 for puncturing biological tissue, the needle head 111 extends out of a corresponding end 22 of the puncture needle sheath 2, and the other end of the needle main body 11 is provided with a pressing portion 12 capable of pressing relative to the puncture needle sheath 2; a limiting part 21 which is matched with the pressing part 12 and used for positioning the depth of the puncture needle 1 extending into the kidney tissue is arranged at one end of the puncture needle sleeve 2 far away from the needle head 111; at least one first sampling recess 113 for taking kidney tissue is provided on the needle body adjacent section 112 adjacent to the needle head 111; when the pressing portion 12 is bottomed out, the needle 111 and the first sampling recess 113 both extend into the kidney tissue, and a kidney tissue sample is obtained through the first sampling recess 113.
In the normal condition of the utility model, the puncture needle 1 is inserted into the puncture needle sheath 2, the needle 111 of the puncture needle 1 is positioned outside the puncture needle sheath 2, and the first sampling concave part 113 is positioned inside the puncture needle sheath 2, in this condition, the normal puncture can be carried out; when sampling is required, the relative positions of the puncture needle 1 and the puncture needle sheath 2 are adjusted, so that the first sampling recess 113 and the needle 111 enter the kidney tissue, and the kidney tissue sample is obtained through the first sampling recess 113.
Preferably, at least a first protrusion 122 is disposed on the lower bottom surface 121 of the pressing portion 12, a boss 212 having an area smaller than that of the upper surface is disposed on the upper surface 211 of the limiting portion 21, and at least a first groove 2121 and a second groove 2122 are disposed on the periphery of the boss 212; a connecting line 2125 between the first groove 2121 and the central point O of the boss 212, and a connecting line 2126 between the second groove 2122 and the central point O of the boss 212 form an included angle α, where the included angle α is greater than 0 degree and smaller than 180 degrees; and the depth of the first groove 2121 is greater than the depth of the second groove 2122; the depth of the first groove 2121 is sufficient for the first sampling recess 113 to extend into the kidney tissue for sampling, while the depth of the second groove 2122 is only used for the normal penetration of the puncture needle 1. Preferably, the angle α is 90 degrees at the most.
Preferably, a second protrusion 123 is further disposed on the lower bottom surface 121 of the pressing portion 12, and the first protrusion 122 and the second protrusion 123 are symmetrically disposed with respect to the central axis of the needle body 11 as a symmetry axis; a third groove 2123 with the same depth as the first groove and a fourth groove 2124 with the same depth as the second groove 2122 are also arranged on the periphery of the boss 212; the first groove 2121 and the third groove 2123 are symmetrically arranged by taking the central axis of the puncture needle sleeve 2 as a symmetry axis; the second groove 2122 and the fourth groove 2124 are symmetrically arranged with the central axis of the lancet cap 2 as a symmetry axis.
Preferably, the puncture needle 1 and the pressing portion 12 are integrally connected by a connecting portion 13.
Preferably, the connecting portion 13 is a truncated cone shape with a large top and a small bottom; the bore 2127 of the restricting portion 21 has an inner diameter and a shape corresponding to the truncated cone shape. This ensures concentricity of the puncture needle 1 and the puncture needle sheath 2.
Preferably, the cross-section of the first sampling recess 113 is triangular or drop-shaped, and the outer periphery of the first sampling recess 113 is a cutting edge through which kidney tissue can be easily cut.
Preferably, at least two second sampling recesses 23 are provided on the outer wall of the lancet cap 2 at the end away from the restriction portion 21. The plurality of second sampling recesses 23, the second sampling recesses 23 and the first sampling recesses 113 are provided on the outer wall of the lancet holder 2, so that the sampling reliability can be improved.
Preferably, the puncture needle cover 2 is far away from be equipped with on the outer wall of restriction portion 21 one end with ultrasonic instrument complex echo location portion 24 for the position percutaneous kidney puncture biopsy sampling needle's needle insertion position, of course, the utility model discloses except can fixing a position with ultrasonic instrument, also can design into structures such as image location as required.
The utility model also provides a percutaneous kidney puncture biopsy sampling needle, including pjncture needle 1 and puncture needle cover 2, pjncture needle 1 alternates in puncture needle cover 2 to can remove for puncture needle cover 2, pjncture needle 1 has the needle main part 11 of puncture organism tissue, be equipped with the syringe needle 111 that pierces through organism tissue in the one end of needle main part 11, syringe needle 111 stretches out in the corresponding end 22 of puncture needle cover 2, be equipped with the splenium 12 that can press for puncture needle cover 2 at the other end of needle main part 11; a limiting part 21 which is matched with the pressing part 12 and used for positioning the depth of the puncture needle 1 extending into the kidney tissue is arranged at one end of the puncture needle sleeve 2 far away from the needle head 111; at least two second sampling concave parts 23 are arranged on the outer wall of one end of the puncture needle sleeve 2 far away from the limiting part 21; the second sampling recess 23 can extend into the kidney tissue and a kidney tissue sample can be obtained through the second sampling recess 23.
The utility model also provides a puncture sampling method using the percutaneous renal puncture biopsy sampling needle, which comprises the following steps,
s1, inserting the puncture needle 1 into the puncture needle sleeve 2 and arranging the pressing part 12 at a normal puncture position; at this time, the first sampling recess 113 is located in the puncture needle sheath 2, and only the needle 111 is exposed outside the puncture needle sheath 2;
s2, inserting the puncture needle 1 into the puncture needle sleeve 2 and penetrating the puncture needle sleeve through the skin of the human body to the focus part;
s3, retreating the pressing part 12 by a preset distance, resetting the pressing part on the sampling position, and pressing the puncture needle 1 to the focus part along the puncture needle sleeve 2 to make the first sampling concave part 113 extend into the focus;
s4, the puncture needle 1 is withdrawn from the puncture needle sheath 2, and the first sampling recess 113 carries the lesion tissue for detection.
Preferably, the step S4 can be replaced by the step S5,
and S5, retreating the puncture needle 1, rotating to a normal puncture position, and retreating together with the puncture needle sleeve 2.
All equivalent changes made by the contents of the specification and the drawings of the utility model are equally covered by the scope of the claims of the utility model without departing from the idea of the utility model.
Claims (9)
1. The utility model provides a percutaneous kidney puncture biopsy sampling needle, includes pjncture needle (1) and puncture needle cover (2), pjncture needle (1) alternates in puncture needle cover (2) to can for puncture needle cover (2) remove its characterized in that: the puncture needle (1) is provided with a needle body (11) for puncturing organism tissues, one end of the needle body (11) is provided with a needle head (111) for puncturing the organism tissues, the needle head (111) extends out of the corresponding end (22) of the puncture needle sleeve (2), and the other end of the needle body (11) is provided with a pressing part (12) which can be pressed relative to the puncture needle sleeve (2); one end of the puncture needle sleeve (2) far away from the needle head (111) is provided with a limiting part (21) which is matched with the pressing part (12) and is used for positioning the depth of the puncture needle (1) extending into the kidney tissue; at least one first sampling recess (113) for taking kidney tissue is provided on a needle body adjacent section (112) adjacent to the needle head (111).
2. The percutaneous nephrolithotomy biopsy needle of claim 1, wherein: at least a first bulge (122) is arranged on the lower bottom surface (121) of the pressing part (12), a boss (212) with the area smaller than that of the upper plane is arranged on the upper plane (211) of the limiting part (21), and at least a first groove (2121) and a second groove (2122) are arranged on the periphery of the boss (212); a connecting line (2125) between the first groove (2121) and the central point (O) of the boss (212), and a connecting line (2126) between the second groove (2122) and the central point (O) of the boss (212) form an included angle alpha, wherein the included angle alpha is greater than 0 degree and smaller than 180 degrees; and the depth of the first groove (2121) is greater than the depth of the second groove (2122); the depth of the first groove (2121) is such that the first sampling recess (113) can be extended into the kidney tissue for sampling, while the depth of the second groove (2122) is only used for normal penetration by the puncture needle (1).
3. The percutaneous nephrolithotomy biopsy needle of claim 2, wherein: a second bulge (123) is further arranged on the lower bottom surface (121) of the pressing part (12), and the first bulge (122) and the second bulge (123) are symmetrically arranged by taking the central axis of the needle body (11) as a symmetry axis; a third groove (2123) with the same depth as the first groove and a fourth groove (2124) with the same depth as the second groove (2122) are also arranged on the periphery of the boss (212); the first groove (2121) and the third groove (2123) are symmetrically arranged by taking the central axis of the puncture needle sleeve (2) as a symmetry axis; the second groove (2122) and the fourth groove (2124) are symmetrically arranged by taking the central axis of the puncture needle sleeve (2) as a symmetry axis.
4. The percutaneous nephrotic biopsy sampling needle of claim 1, 2 or 3, wherein: the puncture needle (1) and the pressing part (12) are connected into a whole through a connecting part (13).
5. The percutaneous nephrolithotomy biopsy needle of claim 4, wherein: the connecting part (13) is in a circular truncated cone shape with a large upper part and a small lower part; the inner diameter and the shape of the hole (2127) of the limiting part (21) are matched with those of the truncated cone.
6. The percutaneous nephrotic biopsy sampling needle of claim 1, 2 or 3, wherein: the cross section of the first sampling recess (113) is triangular or drop-shaped, and the outer periphery of the first sampling recess (113) is a cutting edge.
7. The percutaneous nephrotic biopsy sampling needle of claim 1, 2 or 3, wherein: at least two second sampling concave parts (23) are arranged on the outer wall of one end of the puncture needle sleeve (2) far away from the limiting part (21).
8. The percutaneous nephrotic biopsy sampling needle of claim 1, 2 or 3, wherein: an echo positioning part (24) matched with an ultrasonic instrument is arranged on the outer wall of one end of the puncture needle sleeve (2) far away from the limiting part (21).
9. The utility model provides a percutaneous kidney puncture biopsy sampling needle, includes pjncture needle (1) and puncture needle cover (2), pjncture needle (1) alternates in puncture needle cover (2) to can for puncture needle cover (2) remove its characterized in that: the puncture needle (1) is provided with a needle body (11) for puncturing organism tissues, one end of the needle body (11) is provided with a needle head (111) for puncturing the organism tissues, the needle head (111) extends out of the corresponding end (22) of the puncture needle sleeve (2), and the other end of the needle body (11) is provided with a pressing part (12) which can be pressed relative to the puncture needle sleeve (2); one end of the puncture needle sleeve (2) far away from the needle head (111) is provided with a limiting part (21) which is matched with the pressing part (12) and is used for positioning the depth of the puncture needle (1) extending into the kidney tissue; at least two second sampling concave parts (23) are arranged on the outer wall of one end of the puncture needle sleeve (2) far away from the limiting part (21); the second sampling recess (23) can project into the kidney tissue and a kidney tissue sample can be taken via the second sampling recess (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021273262.2U CN212521953U (en) | 2020-07-03 | 2020-07-03 | percutaneous renal biopsy needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021273262.2U CN212521953U (en) | 2020-07-03 | 2020-07-03 | percutaneous renal biopsy needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212521953U true CN212521953U (en) | 2021-02-12 |
Family
ID=74521160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021273262.2U Withdrawn - After Issue CN212521953U (en) | 2020-07-03 | 2020-07-03 | percutaneous renal biopsy needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212521953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111789664A (en) * | 2020-07-03 | 2020-10-20 | 深圳恒仕医疗科技有限公司 | Percutaneous renal biopsy sampling needle and puncture sampling method |
-
2020
- 2020-07-03 CN CN202021273262.2U patent/CN212521953U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111789664A (en) * | 2020-07-03 | 2020-10-20 | 深圳恒仕医疗科技有限公司 | Percutaneous renal biopsy sampling needle and puncture sampling method |
| CN111789664B (en) * | 2020-07-03 | 2025-04-11 | 广东以太恒丰生命科技有限公司 | Percutaneous renal biopsy needle |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20241111 Address after: 601, Building E1, TCL Technology Park, No. 1001 Zhongshan Yuan Road, Shuguang Community, Xili Street, Nanshan District, Shenzhen City, Guangdong Province 518000 Patentee after: Guangdong Taitai Hengfeng Life Technology Co.,Ltd. Country or region after: China Address before: B705, 7 / F, Languang technology building, 27 Gaoxin North 6th Road, songpingshan community, Xili street, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Hengshi Medical Technology Co.,Ltd. Country or region before: China |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210212 Effective date of abandoning: 20250411 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210212 Effective date of abandoning: 20250411 |