CN111616750B - Multifunctional biopsy puncture needle - Google Patents
Multifunctional biopsy puncture needle Download PDFInfo
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- CN111616750B CN111616750B CN202010598017.7A CN202010598017A CN111616750B CN 111616750 B CN111616750 B CN 111616750B CN 202010598017 A CN202010598017 A CN 202010598017A CN 111616750 B CN111616750 B CN 111616750B
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- 238000001574 biopsy Methods 0.000 title claims abstract description 31
- 239000000306 component Substances 0.000 claims abstract description 37
- 239000008358 core component Substances 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 239000011111 cardboard Substances 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000013399 early diagnosis Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 210000001165 lymph node Anatomy 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010827 pathological analysis Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a multifunctional biopsy puncture needle, which comprises a shell, a needle sleeve assembly, a needle core assembly, a locking component and a locking block, wherein a cavity is formed in the shell, and one end of the shell is provided with a through hole communicated with the cavity; one end of the needle sleeve component penetrates out of the through hole, and the other end of the needle sleeve component is connected with the shell through the first elastic piece; one end of the needle core component is penetrated in the needle sleeve component, and the other end of the needle core component is connected with the shell through the second elastic piece; the locking component is arranged on the shell and used for locking the needle sleeve component and the needle core component when the needle sleeve component and the needle core component respectively compress the first elastic component and the second elastic component, and ejecting the needle sleeve component and the needle core component out of the shell when the locking component releases the locking of the needle sleeve component and the needle core component; the locking block is arranged at the bottom of the locking part and used for hooking and fixing the needle core assembly when the needle core assembly stretches the second elastic piece. The effect is as follows: the invention has simple structure and convenient use, and can be operated by a single hand by a user to freely switch between a semi-automatic mode and a full-automatic mode.
Description
Technical Field
The invention relates to the field of medical supplies, in particular to a multifunctional biopsy puncture needle.
Background
With the continuous development of medical level, the application of puncture biopsy under ultrasound guidance in daily medical treatment is increasing in recent years. The method is applied under ultrasonic monitoring, and the organ tissue target tissue is obtained through cutting to carry out pathological diagnosis, such as breast, thyroid, kidney, liver, lymph node and the like, so that the method is the fastest, simple, convenient and safe method for early diagnosis of benign and malignant of the target. Compared with the prior surgical biopsy, the biopsy device has the advantages of small damage, small risk, same reliable result and the like. This involves a very important tool, the biopsy needle.
The biopsy puncture needle in the prior art is divided into a semiautomatic biopsy puncture needle and a full-automatic biopsy puncture needle; the semi-automatic biopsy puncture needle has the advantages that the puncture direction and the needle inserting depth can be adjusted, the position and the direction of the biopsy needle can be monitored at any time, and the operation is relatively troublesome; the full-automatic biopsy puncture needle can automatically puncture the needle core to the sampling position when in operation, and then the needle sheath is used for cutting, so that the biopsy puncture needle has the advantages of relatively simple operation, but the tissue cutting is finished instantly, the ejection direction and distance of the puncture needle are fixed and cannot be adjusted, and therefore, if important organs such as blood vessels are distributed around the sampling position in the actual sampling process, complications are easily caused by damage.
At present, the two biopsy needles are independent, so that each big hospital needs to purchase the two biopsy needles, which can increase the medical cost certainly, and based on the two biopsy needles, the invention is particularly necessary.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, the present invention aims to propose a multifunctional biopsy needle.
To achieve the above object, a multifunctional biopsy needle according to an embodiment of the present invention includes:
The shell is internally provided with a cavity, and one end of the shell is provided with a through hole communicated with the cavity;
The needle sleeve assembly penetrates out of the through hole at one end and is connected with the shell through a first elastic piece at the other end;
the needle core assembly is provided with one end penetrating through the needle sleeve assembly and the other end connected with the shell through a second elastic piece;
The locking component is arranged on the shell and is used for locking the needle sleeve component and the needle core component when the needle sleeve component and the needle core component respectively compress the first elastic component and the second elastic component, and automatically popping out of the shell when the locking component releases the locking of the needle sleeve component and the needle core component;
the locking block is arranged at the bottom of the locking component and is used for hooking and fixing the needle core component when the needle core component stretches the second elastic component.
The multifunctional biopsy puncture needle provided by the invention has the advantages of simple structure, convenient use, single-hand operation by a user, and free switching of semi-automatic and full-automatic modes.
In addition, the multifunctional biopsy needle according to the above embodiment of the present invention may have the following additional technical features:
in one embodiment according to the present invention, the needle hub assembly comprises an outer needle hub and a needle hub seat;
one end of the outer needle sleeve movably penetrates through the through hole;
the needle sleeve seat is connected with the other end of the outer needle sleeve and is connected with the shell through the first elastic piece.
According to one embodiment of the invention, a first sliding block is vertically arranged on the needle sleeve seat;
the upper surface of the shell is provided with a first sliding hole which is communicated with the cavity and extends along the length direction of the shell;
The first sliding block can slide out of the first sliding hole, and when the needle sleeve seat compresses the first elastic piece, the locking component can lock the first sliding block so as to lock the needle sleeve assembly.
According to one embodiment of the invention, the needle core assembly comprises an inner needle core and a needle core seat;
one end of the inner needle core is slidably arranged in the outer needle sleeve in a penetrating manner;
the needle core seat is connected with the other end of the inner needle core and is connected with the shell through the second elastic piece.
According to one embodiment of the invention, a second sliding block is vertically arranged on the needle core seat;
The upper surface of the shell is provided with a second sliding hole which is communicated with the cavity and extends along the length direction of the shell;
the second sliding block can slide out of the second sliding hole, and when the needle core seat compresses the second elastic piece, the locking component can lock the second sliding block so as to lock the needle core assembly.
In one embodiment according to the invention, the locking member comprises a first locking assembly and a second locking assembly;
the first locking assembly comprises a hinging seat and a first limiting plate, the hinging seat is arranged on the upper surface of the shell and is positioned at the rear side of the first sliding hole, the first limiting plate comprises a first end and a second end, the middle part of the first limiting plate is hinged with the hinging seat through a rotating shaft sleeved with a first torsion spring, the first end is used for locking the first sliding block when the needle sleeve seat compresses the first elastic piece, and the first end is used for unlocking the first sliding block when the second end is stressed to rotate downwards;
the second locking assembly comprises a rotating rod and a second limiting plate, the rotating rod is arranged on the upper surface of the second limiting plate, a second torsion spring is sleeved on the upper surface of the second limiting plate, and the rotating rod is rotationally connected with the lower surface of the first limiting plate; the second limiting plate comprises a limiting end and an operating end, wherein the limiting end is used for locking the second sliding block when the needle core seat compresses the second elastic piece, and unlocking the second sliding block when the operating end is pressed leftwards.
According to one embodiment of the invention, the first end is provided with at least two limiting holes along the length direction, and the at least two limiting holes are suitable for clamping the first sliding block;
the extension degree direction is provided with two at least cardboards on the spacing end, two at least cardboards all are suitable for the hook the second slider, and the interval between two adjacent cardboards equals with the interval between two adjacent spacing holes.
According to one embodiment of the invention, the locking block is arranged at the bottom of the first limiting plate;
when the second sliding block stretches the second elastic piece, the front side wall of the locking block is suitable for propping against the second sliding block so as to hook and fix the second sliding block;
when the operation end of the second limiting plate is not affected by external force, the limiting end abuts against the right side wall of the locking block.
According to one embodiment of the invention, the portable electronic device further comprises a holding handle, wherein the holding handle is of a square frame structure and is arranged at the other end of the shell and used for holding the shell.
According to one embodiment of the invention, the housing comprises an upper housing and a lower housing, the upper housing and the lower housing are detachably connected, the outer needle sleeve is detachably connected with the needle sleeve seat, and the inner needle core is detachably connected with the needle core seat.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present invention;
Fig. 3 is a schematic view of the structure of a locking member according to an embodiment of the present invention.
Reference numerals:
a housing 10;
A cavity 11;
a needle hub assembly 20;
A needle sheath seat 21;
an outer needle sheath 22;
A first elastic member 23;
A first slider 24;
a needle core assembly 30;
A needle core holder 31;
An inner core 32;
A second elastic member 33;
a second slider 34;
A locking member 40;
a first locking assembly 41;
a hinge base 411;
A first limiting plate 412;
a first end 4121;
Limit holes 42111;
A second end 4122;
A second locking assembly 42;
A second limiting plate 421;
a limiting end 4211;
a card 42111;
an operating end 4212;
A locking block 50;
Grip handle 60.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
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", "outer", "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 devices or elements 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, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
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.
Referring to fig. 1 to 3, the embodiment of the present invention provides a multifunctional biopsy needle, comprising a housing 10, a needle sheath assembly 20, a needle core assembly 30, a locking member 40 and a locking block 50;
Specifically, the housing 10 has a cavity 11 therein, and one end of the housing 10 is provided with a through hole communicating with the cavity 11.
One end of the needle hub assembly 20 is penetrated out of the through hole, and the other end is connected with the housing 10 through the first elastic member 23.
The core assembly 30 has one end penetrating the needle sheath assembly 20 and the other end connected to the housing 10 via a second elastic member 33.
That is, the needle sheath assembly 20 and the needle core assembly 30 are disposed in the cavity 11 and are respectively connected with the housing 10 through the first elastic member 23 and the second elastic member 33, wherein one end of the needle sheath assembly 20 is disposed in the through hole and can slide along the through hole, and one end of the needle core assembly 30 is disposed in the needle sheath assembly 20 and can slide along the needle sheath assembly 20, so that the needle core assembly 30 and the needle sheath assembly 20 cooperate to obtain a sample.
The locking component 40 is disposed on the housing 10, and is used for locking the needle sheath assembly 20 and the needle core assembly 30 when the needle sheath assembly 20 and the needle core assembly 30 compress the first elastic member 23 and the second elastic member 33 respectively, and automatically ejecting the needle sheath assembly 20 and the needle core assembly 30 out of the housing 10 when the locking component 40 releases the locking of the needle sheath assembly 20 and the needle core assembly 30. That is to say that the first and second,
That is, when the first elastic member 23 and the second elastic member 33 connected to the needle hub assembly 20 and the needle hub assembly 30 are compressed, respectively, the needle hub assembly 20 and the needle hub assembly 30 are locked by the locking member 40, so that the first elastic member 23 and the second elastic member 33 are in a compressed state to store force, and further, when the locking member 40 releases the locking of the needle hub assembly 20 and the needle hub assembly 30, the needle hub assembly 20 and the needle hub assembly 30 are automatically ejected, and at this time, the biopsy needle is of a full-automatic type.
The locking block 50 is disposed at the bottom of the locking member 40 for hooking and fixing the needle assembly 30 when the needle assembly 30 stretches the second elastic member 33.
When the second elastic member 33 is stretched by the core assembly 30, the second elastic member 33 can be hooked and fixed with the locking block 50 at the bottom of the locking member 40, that is, the core assembly 30 can be fixed by the locking block 50, and then the core assembly 30 cannot be ejected by the second elastic member 33 after the locking block 50 fixes the core assembly 30, and at this time, the core assembly 30 can be manually operated, so that the biopsy puncture needle is semi-automatic.
That is, before use, the position or state of the needle core assembly 30 can be adjusted to automatically and non-automatically eject the needle core assembly 30, so that the medical staff can select according to the situation, and meanwhile, when in use, the needle core assembly can be operated by one hand, and the other hand can be released.
The multifunctional biopsy puncture needle provided by the invention has the advantages of simple structure, convenient use, single-hand operation by a user, and free switching of semi-automatic and full-automatic modes.
Advantageously, in one embodiment of the present invention, the needle hub assembly 20 includes an outer needle hub 22 and a needle hub seat 21;
one end of the outer needle sleeve 22 movably penetrates through the through hole;
The needle hub seat 21 is connected to the other end of the outer needle hub 22 and to the housing 10 via a first elastic member 23.
Preferably, the first elastic member 23 may employ a telescopic spring.
Then, when the first elastic member 23 is compressed by the needle sheath holder 21 and locked by the locking member 40, the force can be accumulated, and when the locking is released, the first elastic member 23 can eject the outer needle sheath 22 and the needle sheath holder 21, thereby realizing the automatic ejection of the needle sheath assembly 20.
Advantageously, in one embodiment of the invention, the first slider 24 is arranged vertically on the needle hub 21;
the upper surface of the shell 10 is provided with a first sliding hole which is communicated with the cavity 11 and extends along the length direction of the shell 10;
the first slider 24 is slidably inserted through the first sliding hole, and the locking member 40 locks the first slider 24 to lock the needle hub assembly 20 when the needle hub 21 compresses the first elastic member 23.
In this way, the first slider 24 disposed outside the housing 10 is driven to slide along the first sliding hole, so that the needle sleeve seat 21 can be driven to compress the first elastic member 23, and the first slider 24 is locked by the locking assembly, so that the force is accumulated, and accordingly, the medical staff can conveniently accumulate the force on the needle sleeve assembly 20 by using the first slider 24.
Advantageously, in another embodiment of the present invention, the needle assembly 30 comprises an inner needle 32 and a needle seat 31;
one end of the inner needle core 32 is slidably arranged in the outer needle sleeve 22 in a penetrating manner;
The core holder 31 is connected to the other end of the inner core 32 and to the housing 10 via a second elastic member 33.
Preferably, the second elastic member 33 may employ a telescopic spring.
Then, when the second elastic member 33 is compressed by the core holder 31 and locked by the locking member 40, the force can be accumulated, and when the locking is released, the second elastic member 33 can eject the core holder 31 and the inner core 32, thereby realizing the automatic ejection of the core assembly 30.
Advantageously, in another embodiment of the invention, the second slider 34 is arranged vertically on the needle seat 31;
The upper surface of the shell 10 is provided with a second sliding hole which is communicated with the cavity 11 and extends along the length direction of the shell 10;
the second slider 34 is slidably inserted through the second sliding hole, and when the core holder 31 compresses the second elastic member 33, the locking member 40 locks the second slider 34 to lock the core assembly 30.
In this way, the second sliding block 34 disposed outside the housing 10 is driven to slide along the second sliding hole, so that the needle core seat 31 can be driven to compress the second elastic member 33, and the second sliding block 34 is locked by the locking assembly, so that the force is accumulated, and accordingly, the medical staff can conveniently accumulate the force on the needle core assembly 30 by using the second sliding block 34.
Advantageously, in some embodiments of the present invention, the locking member 40 comprises a first locking assembly 41 and a second locking assembly 42;
The first locking assembly 41 comprises a hinge seat 411 and a first limiting plate 412, the hinge seat 411 is arranged on the upper surface of the housing 10 and is positioned at the rear side of the first sliding hole, the first limiting plate 412 comprises a first end 4121 and a second end 4122, the middle part of the first limiting plate is hinged with the hinge seat 411 through a rotating shaft sleeved with a first torsion spring, the first end 4121 is used for locking the first sliding block 24 when the needle sleeve seat 21 compresses the first elastic piece 23, and the first end 4121 is used for unlocking the first sliding block 24 when the second end 4122 is stressed to rotate downwards;
The second locking component 42 comprises a rotating rod and a second limiting plate 421, the rotating rod is arranged on the upper surface of the second limiting plate 421, a second torsion spring is sleeved on the upper surface of the second limiting plate 421, and the rotating rod is rotationally connected with the lower surface of the first limiting plate 412; the second limiting plate 421 includes a limiting end 4211 and an operating end 4212, wherein the limiting end 4211 is used for locking the second slider 34 when the needle core seat 31 compresses the second elastic member 33, and releasing the locking of the second slider 34 when the operating end 4212 is pressed leftwards.
That is, the hinge seat 411 and the first limiting plate 412 together form a lever structure, wherein the first end 4121 of the first limiting plate 412 is used for locking the first slider 24 when the needle sleeve seat 21 compresses the first elastic member 23, so that the first elastic member 23 is in a force storage state, and when in use, only the second end 4122 of the first limiting plate 412 needs to be pressed downwards, the first end 4121 of the first limiting plate 412 is tilted upwards and separated from the first slider 24, thereby releasing the locking of the first slider 24, that is, releasing the locking of the needle sleeve assembly 20, and the needle sleeve assembly 20 can be automatically ejected.
Similarly, the rotating rod and the second limiting plate 421 together form a lever structure, where the limiting end 4211 of the second limiting plate 421 is used to lock the second slider 34 when the needle core seat 31 compresses the second elastic member 33, so that the second elastic member 33 is in a force storage state, and when in use, only the operating end 4212 of the second limiting plate 421 needs to be pressed leftwards, then the limiting end 4211 of the second limiting plate 421 rotates rightwards, and further, is separated from the second slider 34, thereby, the locking of the second slider 34 is released, that is, the locking of the needle core assembly 30 is released, and the needle core assembly 30 can be automatically ejected.
The second locking assembly 42 is disposed at the bottom of the first locking assembly 41 and is rotatably connected to the first locking assembly 41, so that the second locking assembly 42 is horizontally rotated left and right when operated, and thus, the first locking assembly 41 is not affected.
Advantageously, in some embodiments of the present invention, at least two limiting holes 42111 are provided on the first end 4121 along the length direction, and at least two limiting holes 42111 are adapted to clamp the first slider 24;
The limiting end 4211 is provided with at least two clamping plates 42111 along the extending direction, at least two clamping plates 42111 are suitable for hooking the second sliding block 34, and the distance between two adjacent clamping plates 42111 is equal to the distance between two adjacent limiting holes 42111.
Thus, by forming at least two limiting holes 42111 in the first end 4121 of the first limiting plate 412, when the first slider 24 is limited in the limiting holes 42111 at different positions, the compression degree of the needle sheath seat 21 on the first elastic member 23 is different, and correspondingly, the elastic force of the first elastic member 23 on the needle sheath seat 21 is different, so that the ejected distance of the outer needle sheath 22 is naturally different, and therefore, the ejected length of the outer needle sheath 22 is adjustable. The same principle as the above, at least two clamping plates 42111 are arranged on the limiting end 4211 in the extending direction, so that the ejected length of the inner needle core 32 can be adjusted, and the medical staff can adjust the length according to the requirement.
Advantageously, in some embodiments of the present invention, the locking block 50 is disposed at the bottom of the first limiting plate 412;
When the second slider 34 stretches the second elastic member 33, the front sidewall of the locking block 50 is adapted to abut against the second slider 34 to hook and fix the second slider 34;
when the operating end 4212 of the second limiting plate 421 is not acted by an external force, the limiting end 4211 abuts against the right side wall of the locking block 50.
That is, in one aspect, the locking block 50 may be used to lock the needle assembly 30 so that the inner needle 32 may be manually manipulated for penetration; on the other hand, the locking block 50 can limit the limiting end 4211 of the second limiting plate 421, so that the second limiting plate 421 is in a horizontal state, which is convenient for locking the second slider 34 when the second slider 34 compresses the second elastic member 33, and is convenient for driving the second limiting plate 421 to rotate by one hand, so as to release the locking of the second slider 34.
The locking block 50 can be detachably connected, so that it can be detached as required to avoid blocking the needle core assembly when switching to the full-automatic mode.
Advantageously, in other embodiments of the present invention, the present invention further includes a holding handle 60, where the holding handle 60 is a square frame structure and is disposed at the other end of the housing 10 for holding the housing 10.
Through setting up the handle 60 of holding of square framework structure, then, when using, can hold square framework by one hand to utilize the thumb to control first limiting plate 412 and second limiting plate 421, from this, medical personnel only need the one hand operate can, be favorable to using.
Advantageously, in further embodiments of the present invention, the housing 10 comprises an upper housing 10 and a lower housing 10, the upper housing 10 and the lower housing 10 being removably connected, and the outer needle hub 22 being removably connected to the needle hub seat 21, and the inner needle core 32 being removably connected to the needle core seat 31.
In this way, the outer needle sheath 22, the needle sheath seat 21, the inner needle core 32 and the needle core seat 31 can be detached, and the upper casing 10 and the lower casing 10 of the casing 10 can be detached and connected, so that the outer needle sheath 22 and the inner needle core 32 can be replaced, thereby avoiding the increase of cost due to the whole replacement.
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.
Claims (5)
1. A multifunctional biopsy needle, comprising:
The shell is internally provided with a cavity, and one end of the shell is provided with a through hole communicated with the cavity;
The needle sleeve assembly penetrates out of the through hole at one end and is connected with the shell through a first elastic piece at the other end;
The needle core assembly is characterized by comprising an inner needle core and a needle core seat, wherein one end of the needle core assembly is arranged in the needle sleeve assembly in a penetrating manner, the other end of the needle core assembly is connected with the shell through a second elastic piece, and a second sliding block is vertically arranged on the needle core seat;
The locking component is arranged on the shell and is used for locking the needle sleeve component and the needle core component when the needle sleeve component and the needle core component respectively compress the first elastic component and the second elastic component, and automatically popping out of the shell when the locking component releases the locking of the needle sleeve component and the needle core component;
the locking block is arranged at the bottom of the locking component and is used for hooking and fixing the needle core component when the needle core component stretches the second elastic piece;
the needle sleeve assembly comprises an outer needle sleeve and a needle sleeve seat;
one end of the outer needle sleeve movably penetrates through the through hole;
The needle sleeve seat is connected with the other end of the outer needle sleeve and is connected with the shell through the first elastic piece;
A first sliding block is vertically arranged on the needle sleeve seat;
the upper surface of the shell is provided with a first sliding hole which is communicated with the cavity and extends along the length direction of the shell;
The first sliding block can slide out of the first sliding hole, and when the needle sleeve seat compresses the first elastic piece, the locking component can lock the first sliding block so as to lock the needle sleeve assembly;
the locking component comprises a first locking assembly and a second locking assembly;
the first locking assembly comprises a hinging seat and a first limiting plate, the hinging seat is arranged on the upper surface of the shell and is positioned at the rear side of the first sliding hole, the first limiting plate comprises a first end and a second end, the middle part of the first limiting plate is hinged with the hinging seat through a rotating shaft sleeved with a first torsion spring, the first end is used for locking the first sliding block when the needle sleeve seat compresses the first elastic piece, and the first end is used for unlocking the first sliding block when the second end is stressed to rotate downwards;
The second locking assembly comprises a rotating rod and a second limiting plate, the rotating rod is arranged on the upper surface of the second limiting plate, a second torsion spring is sleeved on the upper surface of the second limiting plate, and the rotating rod is rotationally connected with the lower surface of the first limiting plate; the second limiting plate comprises a limiting end and an operating end, wherein the limiting end is used for locking the second sliding block when the needle core seat compresses the second elastic piece, and the limiting end is used for unlocking the second sliding block when the operating end is pressed leftwards;
at least two limiting holes are formed in the first end along the length direction, and the at least two limiting holes are suitable for clamping the first sliding block;
At least two clamping plates are arranged on the limiting end in the extending direction, the at least two clamping plates are suitable for hooking the second sliding block, and the distance between two adjacent clamping plates is equal to the distance between two adjacent limiting holes;
The locking block is arranged at the bottom of the first limiting plate;
when the second sliding block stretches the second elastic piece, the front side wall of the locking block is suitable for propping against the second sliding block so as to hook and fix the second sliding block;
when the operation end of the second limiting plate is not affected by external force, the limiting end abuts against the right side wall of the locking block.
2. The multifunctional biopsy needle of claim 1, wherein one end of the inner needle core is slidably disposed within the outer needle sheath;
the needle core seat is connected with the other end of the inner needle core and is connected with the shell through the second elastic piece.
3. The multifunctional biopsy needle of claim 2, wherein a second slide aperture is provided in the upper surface of the housing, the second slide aperture being in communication with the cavity and extending along the length of the housing;
the second sliding block can slide out of the second sliding hole, and when the needle core seat compresses the second elastic piece, the locking component can lock the second sliding block so as to lock the needle core assembly.
4. The multifunctional biopsy needle of claim 3, further comprising a grip handle having a square frame structure and disposed at the other end of the housing for gripping the housing.
5. The multifunctional biopsy needle of any one of claims 1-4, wherein the housing comprises an upper housing and a lower housing, wherein the upper housing and the lower housing are detachably connected, and wherein the outer needle sheath is detachably connected to the needle sheath holder, and the inner needle core is detachably connected to the needle core holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN2301977Y (en) * | 1997-05-10 | 1998-12-30 | 吴晓明 | Ejection biopsy needle |
| CN201453304U (en) * | 2009-05-27 | 2010-05-12 | 安瑞医疗器械(杭州)有限公司 | Puncture biopsy sampling device |
| US8485988B2 (en) * | 2010-03-30 | 2013-07-16 | Siteselect Medical Technologies, Inc. | Tissue excision device |
| KR101551311B1 (en) * | 2013-08-21 | 2015-09-08 | 한국기계연구원 | Pistol type biopsy device |
| CN104887242B (en) * | 2014-03-07 | 2018-08-28 | 上海移宇科技股份有限公司 | Analyte sensing system |
| CN210301838U (en) * | 2019-03-19 | 2020-04-14 | 北京大学深圳医院 | Puncture liquid-pumping device |
| CN111067578B (en) * | 2020-01-17 | 2023-07-18 | 普昂(杭州)医疗科技有限公司 | Biopsy device of safe puncture |
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