CN111067578B - Biopsy device of safe puncture - Google Patents
Biopsy device of safe puncture Download PDFInfo
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- CN111067578B CN111067578B CN202010053673.9A CN202010053673A CN111067578B CN 111067578 B CN111067578 B CN 111067578B CN 202010053673 A CN202010053673 A CN 202010053673A CN 111067578 B CN111067578 B CN 111067578B
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- 238000001574 biopsy Methods 0.000 title claims abstract description 37
- 238000010304 firing Methods 0.000 claims abstract description 87
- 238000005070 sampling Methods 0.000 claims description 46
- 230000035515 penetration Effects 0.000 claims description 4
- 210000001519 tissue Anatomy 0.000 description 26
- 238000004804 winding Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 210000005075 mammary gland Anatomy 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 210000002307 prostate Anatomy 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
- A61B10/0275—Pointed or sharp biopsy instruments means for severing sample with sample notch, e.g. on the side of inner stylet
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/03—Automatic limiting or abutting means, e.g. for safety
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0801—Prevention of accidental cutting or pricking
- A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a biopsy device for safe puncture, comprising: the needle comprises a needle core, a needle tube, a handle, a needle tube seat, a firing switch and a safety device; the safety device comprises a safety part and at least two locking gears arranged on the firing post or the firing switch, the safety part is movably arranged on the handle and is provided with at least two stop positions, when the safety part is positioned at one stop position, the safety part is matched with one locking gear to limit the firing switch to move forwards and backwards, and when the safety part is positioned at the other stop position, the safety part is released from the limiting fit with the locking gear, and the firing switch can move forwards. The relative position of the needle core and the needle tube can be locked after the product is wound, the needle core and the needle tube cannot move relatively after being locked, the needle core cannot be pushed by mistake, and the situation of mistaken firing cannot occur, so that the puncture is safer and more accurate.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a biopsy device for biopsy sampling, and particularly relates to a biopsy device for safe puncture.
Background
The biopsy device is a medical instrument, and is suitable for biopsy sampling, cell sucking and the like of various organs such as liver, kidney, lung, prostate, mammary gland, thyroid gland and the like. Has the characteristics of compact structure, convenient use and the like.
Patent document publication No. CN103315778 discloses a biopsy device comprising: needle tube, needle tube seat, handle cover, safety device, needle core and firing switch; the handle is provided with a slideway, and a positioning card is arranged on the slideway; the needle tube seat is limited on the slideway in a sliding way; a spring guide post is fixed at the top of the handle, a spring is arranged between the spring guide post and the needle tube seat, and the needle core penetrates through the spring guide post, the spring, the needle tube seat and the needle tube; a firing switch is fixed at the top end of the needle core, a firing column is parallel to the needle core and fixed on the bottom surface of the firing switch, and a firing head is arranged corresponding to a positioning card on the back surface of the slideway; the firing switch is provided with a safety device which comprises a safety column and a firing button, wherein the safety column can be propped against the bottom surface of the firing switch and the top surface of the handle to prevent the firing head from firing to release the positioning card; the firing button is movably fixed to the bottom of the firing switch and is matched with the safety post to control the safety post to prop against or open between the bottom surface of the firing switch and the top surface of the handle. In this structure, the safety device only can carry out the position to the forward movement of firing switch and does not carry out the position to the backward movement of firing switch and prescribe a limit to, just so lead to biopsy device to last string after, the needle core is not fixed relatively with the needle tubing, can move each other, before the puncture reaches target puncture position, touch gently and fire the switch just can make the needle core forward movement, the non-target tissue of accidental injury can lead to moreover in the in-process of puncture, puncture stroke changes, sampling length and target length are different, can not carry out accurate puncture. The concrete explanation is as follows:
normally, when the biopsy device is wound up and reaches the vicinity of the target puncture tissue 30, the relative positions of the needle core 1 and the needle tube 2 are as shown in fig. 1, and the sampling slot on the needle core 1 is completely received in the needle tube 2; before firing, the firing switch is pushed to drive the needle core 1 to firstly pierce the target tissue 30, and the sampling groove part of the needle core 1 completely enters the target pierced tissue 30, as shown in fig. 2; then the trigger switch is pressed, the trigger needle tube 2 moves forward to perform biopsy sampling, and a biopsy sample 31 is cut from the target puncture tissue 30 by the needle tube 2 and stored in a sampling groove of the needle core, as shown in fig. 3.
However, in some cases, during the puncturing process, the trigger switch is pushed by mistake, the relative between the needle core and the needle tube is changed, before reaching the target puncturing tissue 30, the needle core 1 is extended out of the needle tube 2, and the needle tube 2 is exposed out of the sampling slot of the needle core 1, as shown in fig. 4, so that a part of non-target tissue is received in the sampling slot of the needle core 1 and damage of the non-target tissue is increased, and a doctor can judge the non-target tissue to be wrong, and the needle core 1 and the needle tube 2 are mistakenly considered to be punctured in place; at this time, the trigger switch is pushed before the trigger to drive the needle core 1 to puncture into the target puncture tissue 30, and the sampling groove of the needle core 1 does not completely enter the target puncture tissue 30 as expected, as shown in fig. 5; after such firing, the needle cannula 2 is advanced, as shown in FIG. 6, and the biopsy sample 31 taken may contain target tissue and non-target tissue, with a reduced sample positive rate.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the biopsy device for safe puncture, which can lock the relative positions of the needle core and the needle tube after a product is wound, the needle core and the needle tube can not move relatively after being locked, the needle core can not be pushed by mistake, and the condition of false firing can not occur, so that the puncture is safer and more accurate.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a biopsy device for safe puncture, comprising: the needle comprises a needle core (1), a needle tube (2), a handle (5), a needle tube seat (9), a firing switch (8) and a safety device; a slideway is arranged on the handle (5), and a positioning card (52) is arranged on the slideway; the needle tube seat (9) is arranged on the slideway in a sliding way and can be limited by the positioning card (52); a spring guide post (11) is fixedly arranged on the handle (5), a spring (10) is arranged between the spring guide post (11) and the needle tube seat (9), and the needle core (1) is arranged through the spring guide post (11), the spring (10), the needle tube seat (9) and the needle tube (2); the trigger switch (8) is fixed at the rear end of the needle core, the trigger switch (8) is fixedly provided with a trigger column (81), the trigger column (81) is in sliding connection with the handle (5), and the trigger head (810) at the front end of the trigger column (81) is correspondingly arranged with the positioning card (52) so as to trigger and release the limit of the positioning card (52) on the needle tube seat (9); the safety device comprises a safety part and at least two locking gears arranged on the firing post (81) or the firing switch (8), the safety part is movably arranged on the handle (5) and has at least two stay positions, when the safety part is positioned at one stay position, the safety part is matched with one locking gear to limit the firing switch (8) to move forwards and backwards, and when the safety part is positioned at the other stay position, the safety part is in release limit fit with the locking gear, and the firing switch (8) can move forwards.
Preferably, the locking gear is a locking groove, a locking hole, a locking protrusion or a locking pin arranged on the firing post (81), and the safety component is arranged on the handle in a rotating, swinging or sliding mode and can be in limit fit with the locking groove, the locking hole, the locking protrusion or the locking pin.
Preferably, the safety component is a safety wheel (7) rotatably mounted on the handle (5), a locking part and a release groove (71) are arranged on the rotation periphery of the safety wheel (7), when the locking part of the rotating component is clamped into the locking groove on the firing post (81), the firing switch (8) and the firing post (81) thereof are limited to move forwards and backwards, and when the release groove (71) of the rotating component is matched with the firing post (81), the firing switch (8) and the firing post (81) thereof can move forwards and backwards.
Preferably, the safety wheel (7) is sleeved on the needle core (1) and can rotate around the needle core (1).
Preferably, the safety wheel (7) is sleeved on the rear end part of the spring guide post (11) extending out of the handle (5) and can rotate, and two release grooves (71) are formed in the circular periphery of the safety wheel (7).
Preferably, a first upper chord clamping position (93) and a second upper chord clamping position (92) are arranged on the needle tube seat (9) front and back, and correspondingly, a first locking groove (811), a second locking groove (812) and a third locking groove (813) are arranged on the firing post (81) front and back; when the positioning clamp (52) is matched and limited with the first upper chord clamping position (93) and the locking part of the safety gear (7) is matched and limited with the first locking groove (811), the sampling groove of the needle core (1) is fully contained in the needle tube (2); when the positioning clamp (52) is matched and limited with the first upper chord clamping position (93) and the locking part of the safety gear (7) is matched and limited with the third locking groove (813), all sampling grooves of the needle core (1) extend out of the needle tube (2); when the positioning clamp (52) is matched and limited with the second upper chord clamping position (92) and the locking part of the safety gear (7) is matched and limited with the second locking groove (812), the sampling groove of the needle core (1) is contained in the needle tube (2); when the positioning clamp (52) is matched and limited with the second upper chord clamping position (92) and the locking part of the safety gear (7) is matched and limited with the third locking groove (813), the sampling groove part of the needle core (1) extends out of the needle tube (2); when the needle tube seat (9) is not limited by the positioning card (52), the sampling groove of the needle core (1) is fully contained in the needle tube (2).
Preferably, a groove is arranged at the bottom of the needle tube seat (9), the first upper chord clamping position (93) and the second upper chord clamping position (92) are arranged in the groove, and the positioning clamp (52) is tilted upwards into the groove.
Preferably, a handle cover (6) is fixed on the handle (5), the needle tube seat (9) and the spring (10) are arranged between the handle (5) and the handle cover (6), the front end of the handle (5) is provided with a bracket (3), and the front end of the handle cover (6) is provided with an outer needle (4).
By adopting the technical scheme, the product is locked after winding, the needle core and the needle tube do not move relatively after locking, the needle core cannot be pushed by mistake, the situation of false firing cannot occur, the needle can be punctured safely, non-target tissues cannot be injured by mistake due to displacement of the needle core caused by false firing of the firing button, the puncture length is reduced due to displacement of the needle core before the needle core reaches the target tissues, and some non-target tissues can be taken, so that the sampling positive rate is reduced, the puncture is safer, and the sampling detection is more accurate.
Drawings
FIG. 1 is a schematic diagram of a normal lancing sampling process (reaching a target lancing site);
FIG. 2 is a second schematic diagram of a normal puncture sampling process (puncturing a target puncture site);
FIG. 3 is a third schematic illustration of a normal puncture sampling process (taking a biopsy sample);
FIG. 4 is a schematic diagram of an erroneous piercing sampling process (reaching a target piercing site) after a core is erroneously pushed;
FIG. 5 is a second schematic illustration of the false piercing sampling process (piercing the target piercing site) after the core is incorrectly pushed;
FIG. 6 is a third schematic illustration of the false puncture sampling process after the core has been misplaced (biopsy sample taken);
FIG. 7 is a schematic view of the structure of the present invention;
FIG. 8 is a top view of FIG. 7;
FIG. 9 is a perspective view of the present invention;
FIG. 10 is a schematic illustration of the locking of the biopsy device in a first winding displacement prior to reaching a target penetration site;
FIG. 11 is a schematic illustration of the locking of the biopsy device prior to sample firing in a first winding displacement;
FIG. 12 is a schematic illustration of the locking of the biopsy device in a second top chord position prior to reaching a target penetration site;
FIG. 13 is a schematic illustration of the locking of the biopsy device prior to sample firing in a second top chord position;
FIG. 14 is a schematic view of the locking of the biopsy device after sample firing;
wherein, 1, the needle core; 2. a needle tube; 3. a bracket; 4. an outer needle member; 5. a handle; 51. a finger ring; 52. a positioning card; 6. a handle cover; 7. a safety wheel; 71. a release groove; 8. a firing switch; 81. a firing post; 810. a hook; 811. a first locking groove; 812. a second locking groove; 813. a third locking groove; 9. a needle holder; 91. a hooking part; 92. the second winding clamping position; 93. the first winding clamping position; 10. a spring; 11. a spring guide post; 100. a coaxial puncture needle; 30. the target punctures the tissue; 31. biopsy samples.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
A safety penetration biopsy device as shown in fig. 7-9, comprising: the needle comprises a needle core 1, a needle tube 2, a handle 5, a needle tube seat 9, a firing switch 8 and a safety device; a slideway is arranged on the handle 5, and a positioning card 52 is arranged on the slideway; the needle tube seat 9 is arranged on the slideway in a sliding way and can be limited by the positioning card 52; a spring guide post 11 is fixedly arranged on the handle 5, a spring 10 is arranged between the spring guide post 11 and the needle tube seat 9, and the needle core 1 is penetrated through the spring guide post 11, the spring 10, the needle tube seat 9 and the needle tube 2, and the needle tube seat 9 is fixedly connected with the needle tube 2; the back end of the needle core is fixed with a firing switch 8, the firing switch 8 is fixedly provided with a firing column 81, the firing column 81 is in sliding connection with the handle 5, and a firing head 810 at the front end of the firing column 81 is correspondingly arranged with the positioning card 52 so as to fire and release the limit of the positioning card 52 to the needle tube seat 9; the safety device comprises a safety part and at least two locking gears arranged on the firing post 81 or the firing switch 8, the safety part is movably arranged on the handle 5 and has at least two stay positions, when the safety part is positioned at one stay position, the safety part is matched with one locking gear to limit the firing switch 8 to move forwards and backwards, and when the safety part is positioned at the other stay position, the safety part is released from limit fit with the locking gear, and the firing switch 8 can move forwards.
The locking gear may be a locking groove, a locking hole, a locking protrusion or a locking pin provided on the firing post 81, and the safety member is provided on the handle in a rotating, swinging or sliding manner and is capable of being in limit fit with the locking groove, the locking hole, the locking protrusion or the locking pin.
In this embodiment, as shown in fig. 9, the safety member is a safety wheel 7 rotatably mounted on the handle 5, a locking portion and a release groove 71 are provided on the rotation periphery of the safety wheel 7, when the locking portion of the rotating member is locked in the locking groove on the firing post 81, the firing switch 8 and the firing post 81 thereof are limited to move forward and backward, and when the release groove 71 of the rotating member is matched with the firing post 81, the firing switch 8 and the firing post 81 thereof can move forward and backward.
In other embodiments, the safety component is a swinging component or a sliding component, and can be clamped and limited with a groove or a protrusion on the firing post 81, and can also be matched and limited with a locking hole or a locking pin on the firing post 81.
In this embodiment, the safety gear 7 is preferably sleeved on the needle core 1 and can rotate around the needle core 1. In other embodiments, the safety wheel 7 may also rotate around the needle core 1.
In this embodiment, the safety gear 7 is sleeved on the rear end portion of the spring guide post 11 extending out of the handle 5 and can rotate, and two release grooves 71 are formed in the circular periphery of the safety gear 7. The structure is simple and reasonable, and the installation is convenient.
As shown in fig. 10 to 14, in this embodiment, the needle holder 9 is provided with a first winding detent 93 and a second winding detent 92 in front of and behind, and correspondingly, a first locking groove 811, a second locking groove 812 and a third locking groove 813 are provided in front of and behind the firing post 81; when the positioning card 52 is matched and limited with the first winding clamping position 93 and the locking part of the safety gear 7 is matched and limited with the first locking groove 811, the sampling groove of the needle core 1 is fully contained in the needle tube 2; when the positioning clamp 52 is matched and limited with the first winding clamp position 93 and the locking part of the safety gear 7 is matched and limited with the third locking groove 813, the sampling groove of the needle core 1 extends out of the needle tube 2; when the positioning clamp 52 is matched and limited with the second winding clamp 92 and the locking part of the safety gear 7 is matched and limited with the second locking groove 812, the sampling groove of the needle core 1 is received in the needle tube 2; when the positioning clamp 52 is matched and limited with the second upper chord clamping position 92 and the locking part of the safety gear 7 is matched and limited with the third locking groove 813, the sampling groove part of the needle core 1 extends out of the needle tube 2; when the needle tube seat 9 is not limited by the positioning card 52, the sampling groove of the needle core 1 is fully contained in the needle tube 2.
In this embodiment, a groove is formed at the bottom of the needle tube seat 9, and the first upper chord clamping position 93 and the second upper chord clamping position 92 are disposed in the groove, and the positioning clamp 52 is tilted upward into the groove. The handle 5 is fixedly provided with a handle cover 6, the needle tube seat 9 and the spring 10 are arranged between the handle 5 and the handle cover 6, the front end of the handle 5 is provided with a bracket 3, and the front end of the handle cover 6 is provided with an outer needle 4. The bracket is used for maintaining the balance of the needle, so that the puncture is smoother.
The biopsy device of the embodiment is of a semi-automatic structure, the needle core 1 is manually pushed to puncture by a doctor, the needle tube 2 is triggered by a spring to cut and sample target puncture tissues, two steps of sampling lengths are selectable and are respectively 10mm and 20mm, the trigger switch 8 moves backwards, and one step or two steps can be selected. Locking and unlocking can be achieved in different positions.
When the full-groove sampling is used, as shown in fig. 10, the trigger switch 8 is pulled backwards until the first locking groove 811 is exposed, the positioning card 52 is matched with the first winding clamping position 93 for limiting, the spring 10 is compressed for winding, and when the sampling groove of the needle core 1 is fully retracted in the needle tube 2, the safety gear 7 is stirred to a locking position (the locking part of the safety gear 7 is matched with the first locking groove 811 for limiting), so that the relative positions of the needle core and the needle tube can be kept motionless, and the situation of false pushing can be avoided; the coaxial puncture needle 100 can be used for puncturing, after reaching target tissues, the safety wheel 7 is shifted to release the firing switch 8 (reaching the notch position), the firing switch 8 can be pushed, the needle core 1 moves forwards, the sampling groove of the needle core 1 extends out of the needle tube 2 completely and enters the target puncture tissues, biopsy puncture is carried out, and then the firing button is pressed, so that sampling can be realized. If the position is to be adjusted before sampling, after the needle core is penetrated into the target tissue, as shown in fig. 11, the safety wheel 7 is still shifted to the locking position (the locking part of the safety wheel 7 is matched with the third locking groove 813 to limit), the needle core 1 is unlocked after the position is adjusted, and then the needle core 1 is triggered to trigger, the spring 10 triggers the needle tube seat 9 and the needle tube 2 to move forwards, so that a biopsy sample is obtained, and the biopsy sample 31 is cut from the target tissue 30 by the needle tube 2 and stored in the sampling groove of the needle core, as shown in fig. 14.
When half-groove sampling is used, as shown in fig. 12, the firing switch 8 is pulled backwards until the second locking groove 812 is exposed, the positioning clamp 52 is matched with the second winding clamp position 92 for limiting, the spring 10 is compressed to finish winding, and when the sampling groove of the needle core 1 is completely contained in the needle tube 2, the safety gear 7 is stirred to a locking position (the locking part of the safety gear 7 is matched with the second locking groove 812 for limiting), so that the relative positions of the needle core and the needle tube can be kept still, and the situation of false pushing can be avoided; the coaxial puncture needle 100 can be used for puncturing, after reaching target tissues, the safety wheel 7 is shifted to release the firing switch 8 (reaching the notch position), the firing switch 8 can be pushed, the needle core 1 moves forwards, the sampling groove part of the needle core 1 extends out of the needle tube 2 and enters the target puncture tissues, biopsy puncture is carried out, and then the firing button is pressed, so that sampling can be realized. If the position is to be adjusted before sampling, after the needle core is penetrated into the target tissue, as shown in fig. 13, the safety wheel 7 is still shifted to the locking position (the locking part of the safety wheel 7 is matched with the third locking groove 813 to limit), the needle core 1 is unlocked after the position is adjusted, and then the needle core 1 is triggered to trigger, the spring 10 triggers the needle tube seat 9 and the needle tube 2 to move forwards, so that a biopsy sample is obtained, and the biopsy sample 31 is cut from the target tissue 30 by the needle tube 2 and stored in the sampling groove of the needle core, as shown in fig. 14.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A biopsy device for safe puncture, comprising: the needle comprises a needle core (1), a needle tube (2), a handle (5), a needle tube seat (9), a firing switch (8) and a safety device; a slideway is arranged on the handle (5), and a positioning card (52) is arranged on the slideway; the needle tube seat (9) is arranged on the slideway in a sliding way and can be limited by the positioning card (52); a spring guide post (11) is fixedly arranged on the handle (5), a spring (10) is arranged between the spring guide post (11) and the needle tube seat (9), and the needle core (1) is arranged through the spring guide post (11), the spring (10), the needle tube seat (9) and the needle tube (2); the trigger switch (8) is fixed at the rear end of the needle core, the trigger switch (8) is fixedly provided with a trigger column (81), the trigger column (81) is in sliding connection with the handle (5), and the trigger head (810) at the front end of the trigger column (81) is correspondingly arranged with the positioning card (52) so as to trigger and release the limit of the positioning card (52) on the needle tube seat (9); the safety device is characterized by comprising a safety part and at least two locking gears arranged on a firing post (81) or a firing switch (8), wherein the safety part is movably arranged on a handle (5) and has at least two stay positions, when the safety part is positioned at one stay position, the safety part is matched with one locking gear to limit the firing switch (8) to move forwards and backwards, and when the safety part is positioned at the other stay position, the safety part is released from the limiting fit with the locking gear, and the firing switch (8) can move forwards;
the locking gear is a locking groove, a locking hole, a locking protrusion or a locking pin which are arranged on the firing post (81), and the safety component is arranged on the handle in a rotating, swinging or sliding mode and can be in limit fit with the locking groove, the locking hole, the locking protrusion or the locking pin;
the safety part is a safety wheel (7) which is rotatably arranged on the handle (5), a locking part and a release groove (71) are arranged on the rotation periphery of the safety wheel (7), when the locking part of the rotating part is clamped into the locking groove on the firing post (81), the firing switch (8) and the firing post (81) thereof are limited to move forwards and backwards, and when the release groove (71) of the rotating part is matched with the firing post (81), the firing switch (8) and the firing post (81) thereof can move forwards and backwards;
a first upper chord clamping position (93) and a second upper chord clamping position (92) are arranged on the needle tube seat (9) in front and back, and correspondingly, a first locking groove (811), a second locking groove (812) and a third locking groove (813) are arranged on the firing post (81) in front and back; when the positioning clamp (52) is matched and limited with the first upper chord clamping position (93) and the locking part of the safety gear (7) is matched and limited with the first locking groove (811), the sampling groove of the needle core (1) is fully contained in the needle tube (2); when the positioning clamp (52) is matched and limited with the first upper chord clamping position (93) and the locking part of the safety gear (7) is matched and limited with the third locking groove (813), all sampling grooves of the needle core (1) extend out of the needle tube (2); when the positioning clamp (52) is matched and limited with the second upper chord clamping position (92) and the locking part of the safety gear (7) is matched and limited with the second locking groove (812), the sampling groove of the needle core (1) is contained in the needle tube (2); when the positioning clamp (52) is matched and limited with the second upper chord clamping position (92) and the locking part of the safety gear (7) is matched and limited with the third locking groove (813), the sampling groove part of the needle core (1) extends out of the needle tube (2); when the needle tube seat (9) is not limited by the positioning card (52), the sampling groove of the needle core (1) is fully contained in the needle tube (2).
2. A biopsy device for safe puncture according to claim 1, characterized in that the safety gear (7) is arranged around the needle (1) and is rotatable around the needle (1).
3. A biopsy device for safe puncture according to claim 2, characterized in that the safety wheel (7) is arranged around the rear end of the spring guide post (11) extending out of the handle (5) and is rotatable, and that two release grooves (71) are provided on the circular periphery of the safety wheel (7).
4. A biopsy device for safe penetration as claimed in claim 1, wherein the bottom of the needle cannula holder (9) is provided with a recess in which the first (93) and second (92) upper chord detents are provided, the locator card (52) being tilted up into the recess.
5. The biopsy device for safe puncture according to claim 1, wherein a handle cover (6) is fixed on the handle (5), the needle tube seat (9) and the spring (10) are arranged between the handle (5) and the handle cover (6), the front end of the handle (5) is provided with the bracket (3), and the front end of the handle cover (6) is provided with the outer needle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010053673.9A CN111067578B (en) | 2020-01-17 | 2020-01-17 | Biopsy device of safe puncture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010053673.9A CN111067578B (en) | 2020-01-17 | 2020-01-17 | Biopsy device of safe puncture |
Publications (2)
| Publication Number | Publication Date |
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| CN111067578A CN111067578A (en) | 2020-04-28 |
| CN111067578B true CN111067578B (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010053673.9A Active CN111067578B (en) | 2020-01-17 | 2020-01-17 | Biopsy device of safe puncture |
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| CN111529087A (en) * | 2020-05-31 | 2020-08-14 | 南京康友医疗科技有限公司 | Positioning surgical device and handle structure |
| CN112790796B (en) * | 2020-06-24 | 2023-02-28 | 南京迈迪欣医疗器械有限公司 | Automatic percussion formula living tissue sampling needle |
| CN111616750B (en) * | 2020-06-28 | 2024-06-21 | 北京大学深圳医院 | Multifunctional biopsy puncture needle |
| CN112890878B (en) * | 2021-01-20 | 2022-07-01 | 上海埃斯埃医疗技术有限公司 | Full-automatic structure biopsy gun device |
| CN112807030A (en) * | 2021-02-08 | 2021-05-18 | 温州医科大学附属第二医院（温州医科大学附属育英儿童医院） | Thin puncture needle with one hand controlling needle core resilience |
| CN113288235B (en) * | 2021-06-17 | 2025-01-03 | 常州市新能源吻合器总厂有限公司 | A fully automatic biopsy needle with a safety structure |
| CN113288234B (en) * | 2021-06-17 | 2025-01-07 | 常州市新能源吻合器总厂有限公司 | Semi-automatic biopsy needle |
| CN113425336B (en) * | 2021-06-17 | 2025-01-07 | 常州市新能源吻合器总厂有限公司 | A fully automatic biopsy needle and its use method |
| CN114305523B (en) * | 2021-12-24 | 2025-03-25 | 上海市胸科医院 | Semi-automatic biopsy needle and puncture system for endoscopy |
| CN114533145B (en) * | 2022-03-02 | 2023-07-14 | 浙江伽奈维医疗科技有限公司 | a biopsy gun |
| CN115211905A (en) * | 2022-07-11 | 2022-10-21 | 经方精密医疗（深圳）有限公司 | Biopsy needle |
| CN116407168B (en) * | 2023-05-16 | 2023-10-03 | 杭州丽康医学科技有限公司 | Biopsy device with focus marker is put into function |
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| CN111067578A (en) | 2020-04-28 |
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