CN209808414U - Novel biopsy needle suitable for cutting of solid lesion tissue - Google Patents
Novel biopsy needle suitable for cutting of solid lesion tissue Download PDFInfo
- Publication number
- CN209808414U CN209808414U CN201920165515.5U CN201920165515U CN209808414U CN 209808414 U CN209808414 U CN 209808414U CN 201920165515 U CN201920165515 U CN 201920165515U CN 209808414 U CN209808414 U CN 209808414U
- Authority
- CN
- China
- Prior art keywords
- needle
- tube
- negative pressure
- handle
- worm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a biopsy needle for cutting real lesion tissue, including needle handle, pipe box, needle tubing and negative pressure tube, pipe box one end is open structure, and the other end with needle handle conducting connection, needle tubing one end is equipped with the puncture, puncture one side is equipped with the cutting knife of inclined plane structure, and the other side is equipped with the inlet port, the one end that the needle tubing was equipped with the puncture passes needle handle and pipe box in proper order, and wears out from the pipe box; the needle handle is provided with a telescopic device for controlling the cutting knife to cut focus tissues in a reciprocating way; one end of the negative pressure tube is provided with a storage groove, the storage groove is provided with a shielding surface with the same size as the inlet port, and one end of the negative pressure tube, provided with the storage groove, sequentially penetrates through the needle handle and the connecting hole and penetrates into the needle tube. The utility model discloses can prevent effectively that the actual pathological change tissue from spilling when taking out, can prevent that the actual pathological change tissue is corroded when withdrawing from the needle tubing moreover.
Description
Technical Field
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a novel biopsy needle suitable for cutting of real pathological change tissue.
Background
A biopsy needle is a medical instrument used for sampling living tissues of pyramidal tumors, unknown tumors, and the like of various organs such as kidney, liver, lung, breast, thyroid, prostate, pancreas, testis, uterus, ovary, body surface, and the like, and sucking cells, and the like. Clinically, when examining a patient with a tumor, a biopsy needle is used to remove a certain amount of tissue from the affected site in order to determine the nature of the tumor. 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 recent years, biopsy needles have been mainly used for tissue biopsy, which comprise a needle body, a needle hub, and a needle core inserted into the needle body from the needle hub, wherein the end of the needle core is formed with a needle groove, and the end of the needle body is formed with an inclined surface and a blade-shaped incision.
However, in the case of cutting a solid diseased tissue such as liver, kidney, and abdominal cavity, the biopsy needle of the related art is likely to slip out of the cut solid diseased tissue, and the amount of the solid diseased tissue obtained is small. Moreover, the solid lesion tissue in the biopsy needle may be eroded by the corrosive liquid in the body when the needle tube is withdrawn.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a novel biopsy needle suitable for cutting of real pathological change tissue can prevent effectively that real pathological change tissue from spilling when taking out, can prevent moreover that real pathological change tissue from being corroded when withdrawing from the needle tubing.
In order to realize the purpose, the utility model discloses a technical scheme be:
a novel biopsy needle suitable for cutting solid lesion tissues comprises a needle handle, a pipe sleeve, a needle tube and a negative pressure tube, wherein the needle handle is of a tubular structure with two open ends, one end of the pipe sleeve is of an open structure, the other end of the pipe sleeve is in conduction connection with the needle handle, a puncture hole is formed in one end of the needle tube, a cutting knife of an inclined plane structure is arranged on one side of the puncture hole, an inlet hole is formed in the other side of the puncture hole, and one end, provided with the puncture hole, of the needle tube sequentially penetrates through the needle handle and the pipe sleeve and penetrates out;
the needle handle is provided with a telescopic device, the telescopic device comprises a threaded rod, a gear disc and an adjusting mechanism, the needle handle is provided with a placing groove, the threaded rod is positioned in the placing groove, two ends of the threaded rod are respectively and rotatably connected with the placing groove, the gear disc is provided with a connecting hole, the end surface of the gear disc close to the puncture hole is fixedly connected with the needle tube, the needle tube is communicated with the connecting hole, and the gear disc is meshed with the threaded rod; the adjusting mechanism comprises a fixed shell, a worm wheel and a worm, the fixed shell is arranged outside the placing groove and is fixedly connected with the needle handle, the worm wheel is sleeved outside the threaded rod and is fixedly connected with the threaded rod, the worm is positioned in the fixed shell, two ends of the worm are respectively in rotating connection with the fixed shell, and the worm wheel and the worm form worm wheel and worm transmission;
one end of the negative pressure tube is a sealing structure, the other end of the negative pressure tube is provided with a storage groove, the storage groove is provided with a shielding surface with the same size as the inlet, and one end of the negative pressure tube, which is provided with the storage groove, sequentially penetrates through the needle handle and the connecting hole and penetrates into the needle tube;
the hole wall which encloses the connecting hole is provided with two clamping grooves which are arranged oppositely, the central angle between the two clamping grooves is 180 degrees, and the negative pressure pipe is provided with a clamping piece which is matched with the clamping grooves; when the clamping piece is positioned in one of the clamping grooves, the shielding surface of the negative pressure tube can seal the inlet opening.
Further, the negative pressure pipe is provided with a sealing ring, the inner wall of the sealing ring is fixedly connected with the negative pressure pipe, and the outer wall of the sealing ring is abutted to the needle tube.
Furthermore, at least three sliding parts are arranged on the peripheral wall of the gear disc, a sliding groove matched with the sliding parts is formed in the inner wall of the needle handle, and the sliding parts are connected with the sliding groove in a sliding mode.
Furthermore, one end of the worm penetrates out of the fixed shell and is provided with a knob, and the knob is fixedly connected with the worm.
Further, a handle is arranged at one end, far away from the storage tank, of the negative pressure pipe, and the handle is fixedly connected with the negative pressure pipe.
The utility model has the advantages that,
1. one end of the needle tube is provided with a puncture opening, and one side of the puncture opening is provided with a cutting knife with an inclined plane structure, so that the needle tube and the tube sleeve can be conveniently punctured to a focus of a patient; when the needle tube punctures the focus of a patient, the negative pressure tube is pulled to enable the needle tube to be in a negative pressure state, the focus is sucked to the puncture, the worm is screwed to enable the worm to drive the worm wheel to rotate, the worm wheel drives the threaded rod to rotate, the gear disc can slide up and down along the needle handle, and the fact that the cutting knife cuts the real lesion tissue into the puncture in a back cutting mode is achieved; after cutting, pulling the negative pressure tube to enable the clamping piece to be separated from the current clamping groove, rotating the negative pressure tube, and simultaneously embedding the clamping piece into the other clamping groove to enable the shielding surface to seal the inlet opening, and simultaneously enable the cut solid pathological change tissue to enter the storage groove, so that the solid pathological change tissue is effectively prevented from leaking; the needle tube is retracted into the tube sleeve through the telescopic device, so that the actual pathological change tissue cut off in the needle taking-out process can be prevented from being corroded. Because the solid pathological change tissue is absorbed at the puncture opening during puncture, the corrosive liquid in the body can not enter the needle tube because of negative pressure, and when the needle tube is withdrawn, the shielding surface shields the inlet opening, so that the corrosive liquid in the body can not enter the needle tube, and the solid pathological change tissue of the capsule can be prevented from being corroded when the needle tube is withdrawn.
2. Through twisting the knob, make worm drive worm wheel rotate, the worm wheel drives the threaded rod and rotates for the toothed disc can slide from top to bottom along the needle handle, realizes advancing or withdrawing of needle tubing. Under the action of the sliding piece and the sliding groove, the gear disc and the needle handle can be prevented from rotating, so that the puncture or the retraction of the needle tube is influenced.
3. The negative pressure pipe is provided with a sealing ring, the inner wall of the sealing ring is fixedly connected with the negative pressure pipe, the outer wall of the sealing ring is abutted to the needle tube, and when the negative pressure pipe is pulled, the air tightness between the negative pressure pipe and the needle tube can be guaranteed under the action of the sealing ring so as to increase the negative pressure effect in the needle tube, so that the focus can be sucked to the puncture hole, and the cutting effect of the solid pathological change tissue is further increased.
Drawings
Fig. 1 is a schematic structural view of a novel biopsy needle suitable for cutting solid lesion tissue according to a preferred embodiment of the present invention.
Fig. 2 is a schematic view of the internal structure of the novel biopsy needle suitable for cutting solid lesion tissue according to a preferred embodiment of the present invention.
Fig. 3 is a sectional view taken along the line a-a of the novel biopsy needle suitable for cutting solid lesion tissue according to a preferred embodiment of the present invention.
Fig. 4 is a schematic view of the structure of the puncture hole of the novel biopsy needle suitable for cutting solid lesion tissue according to a preferred embodiment of the present invention.
Fig. 5 is a schematic view of a shielding surface structure of the novel biopsy needle suitable for cutting solid lesion tissue according to a preferred embodiment of the present invention.
Fig. 6 is a structural schematic view of a gear plate of the novel biopsy needle suitable for cutting solid lesion tissue according to a preferred embodiment of the present invention.
In the figure, 1-needle handle, 11-placing groove, 2-sleeve, 3-needle tube, 31-puncture opening, 311-cutting knife, 312-inlet opening, 4-negative pressure tube, 41-storage groove, 411-shielding surface, 42-sealing ring, 43-clamping piece, 5-telescoping device, 51-threaded rod, 52-gear disc, 521-connecting hole, 522-clamping groove, 6-fixed shell, 61-worm wheel, 62-worm, 7-sliding piece, 71-sliding groove, 8-knob and 9-handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
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 a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components 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.
Referring to fig. 1 to 6, the novel biopsy needle suitable for cutting solid lesion tissue according to a preferred embodiment of the present invention includes a needle handle 1, a tube sleeve 2, a needle tube 3 and a negative pressure tube 4.
The needle handle 1 is a tubular structure with two open ends, one end of the pipe sleeve 2 is an open structure, the other end is connected with the needle handle 1 in a conduction way, one end of the needle tube 3 is provided with a puncture opening 31, one side of the puncture opening 31 is provided with a cutting knife 311 with an inclined plane structure, the other side of the puncture opening 31 is provided with an inlet 312, and one end of the needle tube 3 provided with the puncture opening 31 sequentially penetrates through the needle handle 1 and the pipe sleeve 2 and penetrates out of the pipe sleeve. Under the action of the puncture opening 31, the needle tube 3 and the tube sleeve 2 can be conveniently punctured to the focus of a patient, and a necessary means is provided for the actual pathological tissue of the patient to be cut.
The needle handle 1 is provided with the telescoping device 5, the telescoping device 5 includes threaded rod 51, toothed disc 52 and adjustment mechanism, the needle handle 1 is equipped with a standing groove 11, threaded rod 51 is located standing groove 11 and both ends are rotated with standing groove 11 respectively and are connected, toothed disc 52 is equipped with the connecting hole 521 the same with needle tubing 3 aperture, the terminal surface that the toothed disc 52 is close to puncture 31 is connected with needle tubing 3 fixed connection, needle tubing 3 switches on with connecting hole 521, toothed disc 52 meshes with threaded rod 51.
The adjusting mechanism includes a fixed case 6, a worm wheel 61, and a worm 62. The fixed shell 6 is arranged outside the placing groove 11 and is fixedly connected with the needle handle 1, the worm wheel 61 is sleeved outside the threaded rod 51 and is fixedly connected with the threaded rod 51, the worm 62 is arranged in the fixed shell 6, two ends of the worm 62 are respectively in rotating connection with the fixed shell 6, and the worm wheel 61 and the worm 62 form worm wheel and worm transmission.
In this embodiment, at least three sliders 7 are provided on the outer peripheral wall of the gear plate 52, a slide groove 71 engaged with the slider 7 is provided on the inner wall of the needle shaft 1, the slide groove 71 extends in the longitudinal direction of the needle shaft 1, and the slider 7 is slidably connected to the slide groove 71. Preferably, the slider 7 is of a convex configuration.
Through twisting worm 62, make worm 62 drive worm wheel 61 rotate, worm wheel 61 drives threaded rod 51 and rotates for gear disc 52 and with this gear disc 52 fixed connection's needle tubing 3 slide from top to bottom along needle handle 1 together, and then realize the puncture or withdraw of needle tubing 3, make cutting knife 311 can cut into the focus tissue strip to puncture 31 in through the mode of reciprocating the cutting. The slider 7 and the sliding groove 71 function to prevent the gear plate 52 from rotating relative to the needle shaft 1 to affect the advancement or retraction of the needle tube 3.
After cutting, the needle tube is retracted into the tube sleeve 2 through the telescopic device 5, so that the real focus tissue strip or the capsule real focus tissue strip cut off in the taking-out process can be prevented from being corroded by gastric juice easily.
In this embodiment, one end of the worm 62 penetrates through the fixed shell 6 and is provided with a knob 8, and the knob 8 is fixedly connected with the worm 62. By driving the worm 62 by turning the knob 8, the adjustment of the telescopic device 5 can be facilitated.
One end of the negative pressure tube 4 is a sealing structure, the other end is provided with a storage groove 41, the storage groove 41 is provided with a shielding surface 411 with the same size as the inlet port 312, and one end of the negative pressure tube 4 provided with the storage groove 41 sequentially penetrates through the needle handle 1 and the connecting hole 521 and penetrates into the needle tube 3. The connecting hole 521 is provided with two clamping grooves 522, the two clamping grooves 522 are oppositely arranged, the central angle between the two clamping grooves 522 is 180 degrees, and the negative pressure tube 4 is provided with a clamping piece 43 matched with the clamping grooves; when the retainer 43 is located in one of the catching grooves 522, the shielding surface 411 of the negative pressure tube 4 can seal the inlet port 312. In this embodiment, the one end of the negative pressure tube 4 is a sealed structure, which means that the one end of the negative pressure tube 4 is a solid structure, the storage tank 41 penetrates through the end of the negative pressure tube 4 away from the sealed structure to form an opening, and the shielding surface 411 is fixedly installed at the opening of the storage tank 41.
When the needle tube 3 pierces the focus of the patient, the negative pressure tube 4 is pulled to make the inside of the needle tube 3 in a negative pressure state, the principle that the needle tube 3 obtains the negative pressure is the same as the suction principle of the syringe cylinder, so that the focus is sucked to the puncture hole 31, the cutting knife 411 is convenient to cut the solid lesion tissue, and the cut focus tissue strip enters the storage tank 41 from the inlet 312. Since the actual lesion tissue is adsorbed at the puncture opening 31 during puncturing, the corrosive liquid in the body does not enter the needle tube 3 due to negative pressure, and the shielding surface 411 shields the entrance 312 during withdrawing the needle tube, so that the corrosive liquid in the body does not enter the needle tube 3.
After cutting, pulling the negative pressure tube 4 to separate the clamping piece 43 from the current clamping groove 522, rotating the negative pressure tube 4, and simultaneously embedding the clamping piece 43 into the other clamping groove 522, so that the shielding surface 411 seals the inlet port 312, and leakage of solid lesion tissues is effectively prevented;
in this embodiment, a handle 9 is disposed at an end of the negative pressure tube 4 away from the storage tank 41, the handle 9 is fixedly connected to the negative pressure tube 4, and the handle 9 is convenient for pulling or pushing the negative pressure tube 4.
The negative pressure pipe 4 is provided with a sealing ring 42, the inner wall of the sealing ring 42 is fixedly connected with the negative pressure pipe 4, and the outer wall of the sealing ring 42 is abutted against the needle tube 3. Under the action of the sealing ring 42, the air tightness between the negative pressure tube 4 and the needle tube 3 can be ensured, so that the negative pressure effect in the needle tube 3 is increased, the focus can be sucked to the puncture 32, and the excision effect of the focus tissue strip is further increased.
In the present embodiment, the access port 312 is provided with a guide 313, the guide 313 is an inclined U-shaped structure, and the lesion can be better inserted into the puncture port 31 through the guide 313, so that the lesion tissue can be effectively cut.
When the utility model is used, the needle tube 3 is adjusted to expose the tube sleeve 2, the needle tube 3 is punctured to the focus of a patient through the puncture opening 31, when the needle tube 3 punctures the focus of the patient, the negative pressure tube 4 is pulled through the handle 9, so that the interior of the needle tube 3 is in a negative pressure state, and the focus is sucked to the puncture opening 31; by screwing the knob 8, the worm 62 drives the worm wheel 61 to rotate, the worm wheel 61 drives the threaded rod 51 to rotate, the gear disc 52 can slide up and down along the needle handle 1, and the cutting knife 311 can cut a focus tissue strip into the puncture opening 31 in a reciprocating cutting mode and enter the storage tank 41 through the inlet opening 312.
After the cutting is finished, the negative pressure tube 4 is pulled to enable the clamping piece 43 to be separated from the current clamping groove 522, the negative pressure tube 4 is rotated, and meanwhile, the clamping piece 43 is embedded into the other clamping groove 522, so that the inlet port 312 is sealed by the shielding surface 411, and the focus tissue strip is prevented from leaking. Then the needle tube is retracted into the tube sleeve 2 through the telescopic device 5, and finally the needle handle 1 is pulled, and the puncture needle is withdrawn from the body of the patient, so that the excision of the lesion tissue strip can be completed.
Claims (5)
1. The novel biopsy needle suitable for cutting solid lesion tissues is characterized by comprising a needle handle (1), a tube sleeve (2), a needle tube (3) and a negative pressure tube (4), wherein the needle handle (1) is of a tubular structure with two open ends, one end of the tube sleeve (2) is of an open structure, the other end of the tube sleeve is in conduction connection with the needle handle (1), one end of the needle tube (3) is provided with a puncture hole (31), one side of the puncture hole (31) is provided with a cutting knife (311) with an inclined plane structure, the other side of the puncture hole is provided with an inlet hole (312), and one end of the needle tube (3) provided with the puncture hole (31) sequentially penetrates through the needle handle (1) and the tube sleeve (2) and penetrates out of the tube sleeve (;
the needle handle (1) is provided with a telescopic device (5), the telescopic device (5) comprises a threaded rod (51), a gear plate (52) and an adjusting mechanism, the needle handle (1) is provided with a placing groove (11), the threaded rod (51) is positioned in the placing groove (11), two ends of the threaded rod are respectively rotatably connected with the placing groove (11), the gear plate (52) is connected with a connecting hole (521), the end face, close to the puncture hole (31), of the gear plate (52) is fixedly connected with the needle tube (3), the needle tube (3) is communicated with the connecting hole (521), and the gear plate (52) is meshed with the threaded rod (51); the adjusting mechanism comprises a fixed shell (6), a worm wheel (61) and a worm (62), the fixed shell (6) is arranged outside the placing groove (11) and is fixedly connected with the needle handle (1), the worm wheel (61) is sleeved outside the threaded rod (51) and is fixedly connected with the threaded rod (51), the worm (62) is positioned in the fixed shell (6), two ends of the worm wheel (61) are respectively and rotatably connected with the fixed shell (6), and the worm wheel (61) and the worm (62) form worm wheel and worm transmission;
one end of the negative pressure tube (4) is of a sealing structure, the other end of the negative pressure tube is provided with a storage groove (41), the storage groove (41) is provided with a shielding surface (411) with the same size as the inlet opening (312), and one end of the negative pressure tube (4) provided with the storage groove (41) sequentially penetrates through the needle handle (1) and the connecting hole (521) and penetrates into the needle tube (3);
two clamping grooves (522) are arranged on the wall of the hole which encloses the connecting hole (521), the two clamping grooves (522) are arranged oppositely, the central angle between the two clamping grooves (522) is 180 degrees, and the negative pressure pipe (4) is provided with a clamping piece (43) matched with the clamping grooves; when the clip piece (43) is positioned in one of the clamping grooves (522), the shielding surface (411) of the negative pressure tube (4) can seal the inlet opening (312).
2. The novel biopsy needle suitable for cutting solid lesion tissue according to claim 1, wherein: negative pressure pipe (4) are equipped with sealing ring (42), the inner wall of sealing ring (42) with negative pressure pipe (4) fixed connection, the outer wall of sealing ring (42) with needle tubing (3) butt.
3. The novel biopsy needle suitable for cutting solid lesion tissue according to claim 1, wherein: the outer peripheral wall of the gear disc (52) is at least provided with three sliding parts (7), the inner wall of the needle handle (1) is provided with a sliding groove (71) matched with the sliding parts (7), and the sliding parts (7) are in sliding connection with the sliding groove (71).
4. The novel biopsy needle suitable for cutting solid lesion tissue according to claim 1, wherein: one end of the worm (62) penetrates out of the fixed shell (6) and is provided with a knob (8), and the knob (8) is fixedly connected with the worm (62).
5. The novel biopsy needle suitable for cutting solid lesion tissue according to claim 1, wherein: one end, far away from the storage tank (41), of the negative pressure pipe (4) is provided with a handle (9), and the handle (9) is fixedly connected with the negative pressure pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920165515.5U CN209808414U (en) | 2019-01-30 | 2019-01-30 | Novel biopsy needle suitable for cutting of solid lesion tissue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920165515.5U CN209808414U (en) | 2019-01-30 | 2019-01-30 | Novel biopsy needle suitable for cutting of solid lesion tissue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209808414U true CN209808414U (en) | 2019-12-20 |
Family
ID=68872561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920165515.5U Active CN209808414U (en) | 2019-01-30 | 2019-01-30 | Novel biopsy needle suitable for cutting of solid lesion tissue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209808414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111588421A (en) * | 2020-05-29 | 2020-08-28 | 南方医科大学珠江医院 | Hepatobiliary surgery puncture equipment |
| CN113995449A (en) * | 2021-12-01 | 2022-02-01 | 王乐乐 | Biopsy sampler for medical oncology department based on negative pressure principle |
-
2019
- 2019-01-30 CN CN201920165515.5U patent/CN209808414U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111588421A (en) * | 2020-05-29 | 2020-08-28 | 南方医科大学珠江医院 | Hepatobiliary surgery puncture equipment |
| CN111588421B (en) * | 2020-05-29 | 2022-11-18 | 南方医科大学珠江医院 | Hepatobiliary surgery puncture equipment |
| CN113995449A (en) * | 2021-12-01 | 2022-02-01 | 王乐乐 | Biopsy sampler for medical oncology department based on negative pressure principle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11779316B2 (en) | Biopsy device | |
| US20180280003A1 (en) | Spiral soft tissue biopsy needle | |
| CN209808414U (en) | Novel biopsy needle suitable for cutting of solid lesion tissue | |
| CN104605896B (en) | Adjustable scalpel head for minimally invasive soft tissue central biopsy | |
| CN201542659U (en) | Soft tissue biopsy sampler | |
| CN217447857U (en) | Sawtooth type sleeve biopsy needle | |
| CN209751109U (en) | Biopsy needle for cutting cystic solid lesion tissue | |
| CN213345753U (en) | Clinical biopsy sampling device that uses of medical oncology | |
| CN206239441U (en) | The cutting needle advance and retreat structure and its rotary-cut pin of a kind of rotary-cut pin | |
| CN106344077B (en) | Puncture biopsy needle and use method thereof | |
| CN109528246A (en) | A kind of suction type biopsy sampler for tumor of breast Minimally Invasive Surgery | |
| CN211862863U (en) | Prevent blockking up tumour biopsy sampler | |
| CN209661693U (en) | A kind of suction type biopsy sampler for tumor of breast Minimally Invasive Surgery | |
| CN211270873U (en) | Negative pressure suction positive soft tissue rotary cutting sampling needle | |
| CN210990432U (en) | Thyroid gland puncture tissue collector | |
| CN209678565U (en) | A kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue | |
| CN113288229A (en) | A detect sampling device for breast tumour | |
| CN201814600U (en) | Medical biopsy tool | |
| CN220713999U (en) | Puncture needle | |
| CN219000368U (en) | Interventional department is with convenient accurate efficient biopsy needle of sample | |
| CN105615928A (en) | Syringe needle | |
| CN110693538A (en) | Thyroid gland puncture tissue collector | |
| CN210541648U (en) | Safe and efficient rotary biopsy needle | |
| CN215018048U (en) | Tumor biopsy sampling device | |
| CN210249909U (en) | Tissue sampling device for breast biopsy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |