CN111067578A - Biopsy device of safe puncture - Google Patents
Biopsy device of safe puncture Download PDFInfo
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- CN111067578A CN111067578A CN202010053673.9A CN202010053673A CN111067578A CN 111067578 A CN111067578 A CN 111067578A CN 202010053673 A CN202010053673 A CN 202010053673A CN 111067578 A CN111067578 A CN 111067578A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; 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
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- 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
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- 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
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- 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
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- 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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Abstract
The invention discloses a biopsy device for safe puncture, comprising: the safety device comprises a needle core, a needle tube, a handle, a needle tube seat, a trigger switch and a safety device; the safety device comprises a safety part and at least two locking gears arranged on the triggering column or the triggering switch, the safety part is movably arranged on the handle and is provided with at least two stopping positions, when the safety part is positioned at one stopping position, the safety part is matched with one locking gear to limit the triggering switch to move forwards and backwards, when the safety part is positioned at another stopping position, the safety part is released from limiting matching with the locking gear, and the triggering switch can move forwards. The relative position of the needle core and the needle tube can be locked after the needle core and the needle tube are wound on the product, 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 wrong percussion can not 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 safe puncture biopsy device.
Background
The biopsy device is a medical instrument and is suitable for sampling living tissues of various organs such as liver, kidney, lung, prostate, mammary gland, thyroid and the like, sucking cells and the like. Has the characteristics of compact structure, convenient use and the like.
Patent document No. CN103315778 discloses a biopsy apparatus including: the safety device comprises a needle tube, a needle tube seat, a handle cover, a safety device, a needle core and a trigger switch; the handle is provided with a slideway, and a positioning clamp 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 trigger switch is fixed at the top end of the needle core, a trigger column is fixed on the bottom surface of the trigger switch in parallel with the needle core, and a trigger head is arranged corresponding to the positioning clamp at the back of the slideway; the firing switch is provided with a safety device which comprises a safety post and a firing button, the safety post can be abutted against the bottom surface of the firing switch and the top surface of the handle so as to prevent the firing head from firing to release the positioning card; the trigger button is movably fixed to the bottom of the trigger switch and is matched with the safety post to control the safety post to abut against or let open between the bottom surface of the trigger switch and the top surface of the handle. In the structure, the safety device can only move forward to the trigger switch to limit the position, but does not move backward to the trigger switch to limit the position, so that after the biopsy device is wound on the upper string, the needle core and the needle tube are not relatively fixed and can move mutually, before the puncture reaches a target puncture part, the needle core can move forward by lightly touching the trigger switch, non-target tissues are accidentally injured, in addition, the puncture stroke can be changed, the sampling length is different from the target length, and accurate puncture cannot be carried out. The concrete description 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 core 1 and the needle tube 2 are as shown in fig. 1, and the sampling slot on the core 1 is completely received in the needle tube 2; before the needle core is fired, a firing switch is pushed to drive the needle core 1 to enter the target puncture tissue 30 firstly, and the sampling groove part of the needle core 1 completely enters the target puncture tissue 30, as shown in fig. 2; then, the trigger switch is pressed, the trigger needle tube 2 moves forward, the biopsy sample is taken, and the biopsy sample 31 is cut from the target tissue 30 by the needle tube 2 and stored in the sample 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 change between the needle core and the needle tube occurs, before reaching the target puncturing tissue 30, the needle core 1 is already extended out of the needle tube 2, and the part of the sampling groove of the needle core 1 is exposed out of the needle tube 2, as shown in fig. 4, so that a part of non-target tissue can be received in the sampling groove of the needle core 1 and the damage of the non-target tissue is increased, and the judgment error of a doctor can be caused, 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 triggering to drive the stylet 1 to penetrate into the target penetrating tissue 30, and the sampling slot of the stylet 1 does not completely penetrate into the target penetrating tissue 30 as expected, as shown in fig. 5; after this firing, the needle cannula 2 is moved forward, and as shown in fig. 6, the biopsy sample 31 taken may contain target tissue and non-target tissue, and the sampling positive rate is reduced.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a biopsy device with safe puncture, which can lock the relative positions of the needle core and the needle tube after the product is wound, the needle core and the needle tube will not move relatively after being locked, the needle core will not be pushed by mistake, and the false firing condition will not occur, so that the puncture is safer and more accurate.
In order to achieve the purpose, the invention adopts the following technical scheme:
a biopsy device for safe aspiration, comprising: the safety device comprises a needle core (1), a needle tube (2), a handle (5), a needle tube seat (9), a trigger switch (8) and a safety device; the handle (5) is provided with a slideway, and the slideway is provided with a positioning clamp (52); the needle tube seat (9) is arranged on the slideway in a sliding manner and can be limited by a 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 in the spring guide post (11), the spring (10), the needle tube seat (9) and the needle tube (2) in a penetrating way; a trigger switch (8) is fixed at the rear end of the needle core, a trigger column (81) is fixedly arranged on the trigger switch (8), the trigger column (81) is connected with the handle (5) in a sliding manner, and a trigger head (810) at the front end of the trigger column (81) is arranged corresponding to the positioning clamp (52) so as to trigger and release the positioning clamp (52) to limit the needle tube seat (9); the safety device comprises a safety part and at least two locking gears arranged on a firing column (81) or a firing switch (8), wherein the safety part is movably arranged on a handle (5) and has at least two stop positions, when the safety part is at one stop position, the safety part is matched with one locking gear to limit the firing switch (8) to move forwards and backwards, when the safety part is at the other stop position, the safety part is not matched with the locking gear in a limiting manner, 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 column (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) which is rotatably mounted on the handle (5), a locking part and a releasing groove (71) are arranged on the rotating periphery of the safety wheel (7), when the locking part of the rotating piece is clamped into the locking groove on the firing column (81), the firing switch (8) and the firing column (81) thereof are limited to move forwards and backwards, and when the releasing groove (71) of the rotating piece is matched with the firing column (81), the firing switch (8) and the firing column (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 column (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 string blocking position (93) and a second upper string blocking position (92) are arranged on the needle tube seat (9) in a front-back mode, and correspondingly, a first locking groove (811), a second locking groove (812) and a third locking groove (813) are arranged on the firing column (81) in a front-back mode; when the positioning clamp (52) is matched with the first upper string clamping position (93) for limiting and the locking part of the safety wheel (7) is matched with the first locking groove (811) for limiting, the sampling groove of the needle core (1) is completely received in the needle tube (2); when the positioning clamp (52) is matched with the first upper string clamping position (93) for limiting and the locking part of the safety wheel (7) is matched with the third locking groove (813) for limiting, the sampling groove of the needle core (1) extends out of the needle tube (2); when the positioning clamp (52) is matched with the second upper string clamping position (92) for limiting, and the locking part of the safety wheel (7) is matched with the second locking groove (812) for limiting, the sampling groove of the needle core (1) is received in the needle tube (2); when the positioning clamp (52) is matched with the second upper string clamping position (92) for limiting, and the locking part of the safety wheel (7) is matched with the third locking groove (813) for limiting, 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 completely received in the needle tube (2).
Preferably, the bottom of the needle tube seat (9) is provided with a groove, the groove is internally provided with a first upper string blocking position (93) and a second upper string blocking position (92), and the positioning block (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 the bracket (3), and the front end of the handle cover (6) is provided with the outer needle piece (4).
By adopting the technical scheme, the product is locked after being wound, the needle core and the needle tube do not move relatively after being locked, the needle core cannot be pushed by mistake, the mistake firing condition cannot occur, the needle can be safely punctured, the needle core cannot be displaced to accidentally injure non-target tissues due to mistaken touch of a firing button, the needle core cannot be displaced to reduce the puncturing length and take some non-target tissues before the target tissues are reached, the sampling positive rate is reduced, the puncturing is safer, and the sampling detection is more accurate.
Drawings
FIG. 1 is one of the schematic views of a normal lancing sampling procedure (to target puncture site);
FIG. 2 is a second schematic view of a normal lancing sampling procedure (lancing the target puncture site);
FIG. 3 is a third schematic view of a normal lancing sampling process (obtaining a biopsy sample);
FIG. 4 is a schematic view of a sampling procedure for a wrong puncture (reaching a target puncture site) after the stylet has been pushed by mistake;
FIG. 5 is a second schematic view of a sampling procedure (puncturing a target puncturing site) for erroneous puncturing after the needle core is pushed out by mistake;
FIG. 6 is a third schematic view of a wrong needle sampling procedure (taking a biopsy sample) after the core has been pushed by mistake;
FIG. 7 is a schematic structural view 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 locking schematic of the biopsy device in the first winding gear position prior to reaching the target puncture site;
FIG. 11 is a schematic locking view of the biopsy device in the first winding gear position prior to sample firing;
FIG. 12 is a locking schematic of the biopsy device in the second winding gear position prior to reaching the target puncture site;
FIG. 13 is a locking schematic of the biopsy device in the second winding up gear position prior to sample firing;
FIG. 14 is a locking schematic of the biopsy device after sample firing;
wherein, 1, a needle core; 2. a needle tube; 3. a bracket; 4. an outer needle member; 5. a handle; 51. a ring; 52. positioning the card; 6. a handle cover; 7. a safety wheel; 71. releasing the groove; 8. a trigger switch; 81. a firing post; 810. hooking; 811. a first locking groove; 812. a second locking groove; 813. a third locking groove; 9. a needle tube base; 91. a hook portion; 92. a second upper chord clamping position; 93. a first upper chord clamping position; 10. a spring; 11. a spring guide post; 100. a coaxial puncture needle; 30. target puncture tissue; 31. a biopsy sample.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
A safety-piercing biopsy device, as shown in fig. 7-9, comprising: the safety device comprises a needle core 1, a needle tube 2, a handle 5, a needle tube seat 9, a trigger switch 8 and a safety device; the handle 5 is provided with a slideway, and the slideway is provided with a positioning clamp 52; the needle tube seat 9 is arranged on the slideway in a sliding manner 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, the needle core 1 penetrates 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; a trigger switch 8 is fixed at the rear end of the needle core, a trigger column 81 is fixedly arranged on the trigger switch 8, the trigger column 81 is connected with the handle 5 in a sliding manner, and a trigger head 810 at the front end of the trigger column 81 is arranged corresponding to the positioning clamp 52 so as to trigger and release the positioning clamp 52 to limit the needle tube seat 9; the safety device comprises a safety part and at least two locking gears arranged on the triggering column 81 or the triggering switch 8, the safety part is movably arranged on the handle 5 and has at least two stopping positions, when the safety part is at one stopping position, the safety part is matched with one locking gear to limit the triggering switch 8 to move forwards and backwards, when the safety part is at another stopping position, the safety part is released from limiting matching with the locking gear, and the triggering switch 8 can move forwards.
The locking gear can be a locking groove, a locking hole, a locking protrusion or a locking pin arranged on the firing column 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.
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 disposed on a rotation periphery of the safety wheel 7, when the locking portion of the rotation member is locked in the locking groove of the firing column 81, the firing switch 8 and the firing column 81 thereof are limited to move forward and backward, and when the release groove 71 of the rotation member is engaged with the firing column 81, the firing switch 8 and the firing column 81 thereof can move forward and backward.
In other embodiments, the safety component is a swinging component or a sliding component, which can be clamped and limited with a groove or a protrusion on the firing column 81, and can also be matched and limited with a locking hole or a locking pin bolt on the firing column 81.
In this embodiment, the safety wheel 7 is preferably sleeved on the needle core 1 and can rotate around the needle core 1. In other embodiments, the safety wheel 7 can also rotate around the needle core 1.
In this embodiment, the safety wheel 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 wheel 7. Therefore, the structure is simple and reasonable, and the installation is convenient.
As shown in FIGS. 10-14, in the present embodiment, the needle cannula holder 9 is provided with a first upper string position stop 93 and a second upper string position stop 92 at the front and back, and correspondingly, the firing column 81 is provided with a first locking recess 811, a second locking recess 812 and a third locking recess 813 at the front and back; when the positioning clamp 52 is matched with the first upper string clamping position 93 for limiting and the locking part of the safety wheel 7 is matched with the first locking groove 811 for limiting, the sampling groove of the needle core 1 is completely received in the needle tube 2; when the positioning clip 52 is matched with the first upper string clip position 93 for limiting and the locking part of the safety wheel 7 is matched with the third locking groove 813 for limiting, the sampling grooves of the needle core 1 all extend out of the needle tube 2; when the positioning clip 52 is matched with the second upper string clip position 92 for limiting and the locking part of the safety wheel 7 is matched with the second locking groove 812 for limiting, the sampling groove of the needle core 1 is received in the needle tube 2; when the positioning clip 52 is matched with the second upper string clip position 92 for limiting and the locking part of the safety wheel 7 is matched with the third locking groove 813 for limiting, the sampling groove part of the stylet 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 completely received in the needle tube 2.
In this embodiment, the bottom of the syringe holder 9 is provided with a groove, and the first upper string position stopper 93 and the second upper string position stopper 92 are arranged in the groove, and the positioning stopper 52 is tilted upwards into the groove. The handle 5 is fixed 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 the bracket 3, and the front end of the handle cover 6 is provided with the outer needle piece 4. The bracket functions to maintain the balance of the needle, so that the puncture is more stable.
The biopsy device 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 the spring to cut and sample target puncture tissues, the sampling lengths of two gears are selectable and are respectively 10mm and 20mm, and the trigger switch 8 moves backwards, so that one gear or two gears 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 clamp 52 is matched with the first string-up clamping position 93 for limiting, the spring 10 is compressed to finish string-up, and when the sampling groove of the needle core 1 is completely received in the needle tube 2, the safety wheel 7 is shifted to the locking position (the locking part of the safety wheel 7 is matched with the first locking groove 811 for limiting), so that the relative position of the needle core and the needle tube can be kept immovable, and the condition of mistaken pushing can not occur; the coaxial pjncture needle of accessible 100 punctures, and after reaching the target tissue, stir insurance wheel 7 release trigger switch 8 (reaching the breach position), can push away trigger switch 8, make nook closing member 1 forward motion, outside the needle tubing 2 was all stretched out to the sample groove of nook closing member 1, get into the target tissue of puncturing, carry out the biopsy puncture, press the trigger button again, can realize the sample. If the position adjustment is desired before sampling, after the needle core is punctured 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 recess 813 for limiting), the needle core 1 is adjusted in position, after the position adjustment, the safety wheel is unlocked and then is fired, the spring 10 fires the needle tube seat 9 and the needle tube 2 to move forward, the biopsy sampling is carried out, and the biopsy sample 31 is cut from the target punctured tissue 30 by the needle tube 2 and is 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 trigger switch 8 is pulled backwards until the second locking groove 812 is exposed, the positioning clamp 52 is matched with the second string-up clamping position 92 for limiting, the spring 10 is compressed to finish string-up, and when the sampling groove of the needle core 1 is completely received in the needle tube 2, the safety wheel 7 is shifted to a locking position (the locking part of the safety wheel 7 is matched with the second locking groove 812 for limiting), so that the relative position of the needle core and the needle tube can be kept still, and the condition of mistaken pushing can not occur; the coaxial pjncture needle of accessible 100 punctures, and after reaching the target tissue, stir insurance wheel 7 release trigger switch 8 (reaching the breach position), can push away trigger switch 8, make nook closing member 1 forward motion, outside the sample slot part of nook closing member 1 stretches out needle tubing 2, get into the target puncture tissue, carry out the biopsy puncture, press the trigger button again, can realize the sample. If the position adjustment is desired before sampling, after the needle core is punctured 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 recess 813 for limiting), the needle core 1 is adjusted in position, after the position adjustment, the safety wheel is unlocked and then is fired, the spring 10 fires the needle tube seat 9 and the needle tube 2 to move forward, the biopsy sampling is carried out, and the biopsy sample 31 is cut from the target punctured tissue 30 by the needle tube 2 and is stored in the sampling groove of the needle core, as shown in fig. 14.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. 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 is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A biopsy device for safe aspiration, comprising: the safety device comprises a needle core (1), a needle tube (2), a handle (5), a needle tube seat (9), a trigger switch (8) and a safety device; the handle (5) is provided with a slideway, and the slideway is provided with a positioning clamp (52); the needle tube seat (9) is arranged on the slideway in a sliding manner and can be limited by a 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 in the spring guide post (11), the spring (10), the needle tube seat (9) and the needle tube (2) in a penetrating way; a trigger switch (8) is fixed at the rear end of the needle core, a trigger column (81) is fixedly arranged on the trigger switch (8), the trigger column (81) is connected with the handle (5) in a sliding manner, and a trigger head (810) at the front end of the trigger column (81) is arranged corresponding to the positioning clamp (52) so as to trigger and release the positioning clamp (52) to limit the needle tube seat (9); the safety device is characterized by comprising a safety part and at least two locking gears arranged on a triggering column (81) or a triggering switch (8), wherein the safety part is movably arranged on a handle (5) and has at least two stopping positions, when the safety part is at one stopping position, the safety part is matched with one locking gear and then limits the triggering switch (8) to move forwards and backwards, when the safety part is at the other stopping position, the safety part is not matched with the locking gear in a limiting way, and the triggering switch (8) can move forwards.
2. A biopsy device for safe puncture according to claim 1, wherein the locking gear is a locking recess, a locking hole, a locking protrusion or a locking pin provided on the firing column (81), and the safety member is rotatably, swingably or slidably provided on the handle and can be in limit engagement with the locking recess, the locking hole, the locking protrusion or the locking pin.
3. A biopsy device for safe puncture according to claim 2, wherein the safety component is a safety wheel (7) rotatably mounted on the handle (5), the safety wheel (7) is provided with a locking part and a releasing groove (71) on the rotating periphery, the forward and backward movement of the trigger switch (8) and the trigger column (81) thereof is limited after the locking part of the rotating member is clamped into the locking groove on the trigger column (81), and the trigger switch (8) and the trigger column (81) thereof can move forward and backward when the releasing groove (71) of the rotating member is matched with the trigger column (81).
4. A biopsy device with a safety puncture according to claim 3, wherein the safety wheel (7) is arranged on the needle core (1) and can rotate around the needle core (1).
5. A biopsy device with a safety puncture according to claim 4, wherein 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 on the circular periphery of the safety wheel (7).
6. A biopsy device for safe puncture according to claim 2, wherein the needle hub (9) is provided with a first upper chord position (93) and a second upper chord position (92) in tandem, and correspondingly, the firing column (81) is provided with a first locking recess (811), a second locking recess (812) and a third locking recess (813) in tandem; when the positioning clamp (52) is matched with the first upper string clamping position (93) for limiting and the locking part of the safety wheel (7) is matched with the first locking groove (811) for limiting, the sampling groove of the needle core (1) is completely received in the needle tube (2); when the positioning clamp (52) is matched with the first upper string clamping position (93) for limiting and the locking part of the safety wheel (7) is matched with the third locking groove (813) for limiting, the sampling groove of the needle core (1) extends out of the needle tube (2); when the positioning clamp (52) is matched with the second upper string clamping position (92) for limiting, and the locking part of the safety wheel (7) is matched with the second locking groove (812) for limiting, the sampling groove of the needle core (1) is received in the needle tube (2); when the positioning clamp (52) is matched with the second upper string clamping position (92) for limiting, and the locking part of the safety wheel (7) is matched with the third locking groove (813) for limiting, 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 completely received in the needle tube (2).
7. A biopsy device for safe puncture according to claim 6, wherein the needle hub (9) is provided with a recess at the bottom, in which the first upper chord position stop (93) and the second upper chord position stop (92) are arranged, and the position stop (52) is tilted upwards into the recess.
8. A biopsy device for safe aspiration according to claim 1, wherein a handle cover (6) is fixed on the handle (5), the needle cannula holder (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 member (4).
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| CN202010053673.9A CN111067578B (en) | 2020-01-17 | 2020-01-17 | Biopsy device of safe puncture |
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| CN202010053673.9A CN111067578B (en) | 2020-01-17 | 2020-01-17 | Biopsy device of safe puncture |
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| CN111067578B CN111067578B (en) | 2023-07-18 |
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| CN112790796A (en) * | 2020-06-24 | 2021-05-14 | 南京迈迪欣医疗器械有限公司 | Automatic percussion formula living tissue sampling needle |
| CN112890878A (en) * | 2021-01-20 | 2021-06-04 | 上海埃斯埃医疗技术有限公司 | Novel full-automatic structure biopsy rifle device |
| CN113288235A (en) * | 2021-06-17 | 2021-08-24 | 常州市新能源吻合器总厂有限公司 | Full-automatic biopsy needle with safety structure |
| CN113288234A (en) * | 2021-06-17 | 2021-08-24 | 常州市新能源吻合器总厂有限公司 | Semi-automatic biopsy needle |
| CN113425336A (en) * | 2021-06-17 | 2021-09-24 | 常州市新能源吻合器总厂有限公司 | Full-automatic biopsy needle and using method thereof |
| CN114305523A (en) * | 2021-12-24 | 2022-04-12 | 上海市胸科医院 | Semi-automatic biopsy needle and puncture system for endoscope |
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| CN116407168A (en) * | 2023-05-16 | 2023-07-11 | 杭州丽康医学科技有限公司 | Biopsy device with focus marker imbedding function and application method |
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