CN116636883B - A one-button continuous firing fully automatic biopsy needle - Google Patents
A one-button continuous firing fully automatic biopsy needleInfo
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- CN116636883B CN116636883B CN202310361176.9A CN202310361176A CN116636883B CN 116636883 B CN116636883 B CN 116636883B CN 202310361176 A CN202310361176 A CN 202310361176A CN 116636883 B CN116636883 B CN 116636883B
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- 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
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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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- Heart & Thoracic Surgery (AREA)
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Abstract
本发明属于医用检测工具或设备技术领域，尤其涉及一种一键连续击发全自动活检针。包括针筒、针芯、控制机构；控制机构包括针筒连接组件、针芯连接组件、击发杆、前滑动件、后滑动件、第一横向弹簧、第二横向弹簧、导向杆；导向杆设于安装筒内部；针筒连接组件包括前套环和针筒按压帽；针芯连接组件包括后套环和针芯按压帽。本申请的一键连续击发全自动活检针采用按压驱动，弹簧蓄力，一键击发的方式，操作方便，动作迅捷，利用多重限位和、导向以及限制结构关联控制，整体结构强度高，动作稳定性好，能够有效保证穿刺工具的稳定性和安全性，提高穿刺工作的效率，降低误操作或者工具出现问题的概率。
The present invention belongs to the technical field of medical detection tools or equipment, and in particular relates to a one-button continuous firing fully automatic biopsy needle. It comprises a syringe, a needle core, and a control mechanism; the control mechanism comprises a syringe connecting assembly, a needle core connecting assembly, a firing rod, a front sliding member, a rear sliding member, a first transverse spring, a second transverse spring, and a guide rod; the guide rod is arranged inside the mounting tube; the syringe connecting assembly comprises a front collar and a syringe pressing cap; the needle core connecting assembly comprises a rear collar and a needle core pressing cap. The one-button continuous firing fully automatic biopsy needle of the present application adopts a press-driven, spring-loaded, one-button firing method, is easy to operate, and moves quickly. It utilizes multiple limit and guide and restriction structure-related control, and the overall structural strength is high, the movement stability is good, and it can effectively ensure the stability and safety of the puncture tool, improve the efficiency of the puncture work, and reduce the probability of misoperation or tool problems.
Description
Technical Field
The invention belongs to the technical field of medical detection tools or equipment, and particularly relates to a one-key continuous firing full-automatic biopsy needle.
Background
The biopsy needle is a medical tool for acquiring a pathological tissue or structure sample of a patient, and is convenient for case analysis and diagnosis, in the use process, an operator needs to puncture a needle core into the tissue or structure to be sampled, intercept the pathological tissue by utilizing a special accommodating cavity on the needle core, then push a needle cylinder to move forward, cut the tissue structure near the accommodating cavity by utilizing the edge of the needle cylinder in the advancing process of the needle cylinder, intercept and reserve part of the sample in the accommodating cavity, and finally take out the needle core and the needle tube.
Normal physiological activities of patients are accompanied with continuous physiological actions of tissues, blood vessels and the like, so that excessive extrusion or cutting of the tissues and the puncture needle can be caused in the process of puncturing, bleeding or injury is caused, particularly when puncturing is carried out on organs with large and frequent actions such as heart and lung and the like, an operator is required to have excellent psychological quality and business level, so that the puncturing work can be rapidly and efficiently completed, part of automatic puncture needles appear in the market at present, and the control of part of needle core and needle cylinder movements can be realized instead of the operator, but the action efficiency and stability of the operation are difficult to consider, the performance is uneven, and the efficient and safe puncturing work of the operator cannot be effectively ensured.
Disclosure of Invention
The invention aims to provide a one-key continuous firing full-automatic biopsy needle which has good structural stability, smooth actions of a needle core and a needle cylinder, and good position holding capability, safety and operation efficiency in the whole operation process, and can realize one-key firing once puncture operation in operation.
In order to achieve the above purpose, the present invention adopts the following technical scheme.
A one-key continuous firing full-automatic biopsy needle comprises a needle cylinder 1, a needle core 2, a mounting cylinder 3 and a control mechanism arranged in the mounting cylinder 3;
The control mechanism comprises a needle cylinder connecting component, a needle core connecting component, a firing bar 34, a front sliding piece 35, a rear sliding piece 36, a first transverse spring 37, a second transverse spring 38 and a guide bar 39;
the guide rod 39 is arranged in the mounting cylinder 3, and the middle part of the guide rod 39 is provided with an isolation section 39a;
The needle cylinder connecting assembly comprises a front lantern ring 30 and a needle cylinder pressing cap 31, wherein the front lantern ring 30 is sleeved at the front end of a guide rod 39 in a front-back sliding way, a needle cylinder mounting hole 30k is formed in the front lantern ring 30, and the rear end of a needle cylinder 1 is inserted into the needle cylinder mounting hole 30 k;
The needle core connecting assembly comprises a rear lantern ring 33 and a needle core pressing cap 32, wherein the rear lantern ring 33 can be sleeved at the rear end of a guide rod 39 in a front-back sliding manner, a needle core mounting hole 33k coaxial with a needle cylinder mounting hole 30k is formed in the rear lantern ring 33, a needle core 2 is inserted into the needle core mounting hole 33k, the front end of the needle core penetrates into the needle cylinder 1, a linkage rod 330 is arranged on the rear lantern ring 33, the front end of the linkage rod 330 extends to the rear side of the needle core pressing cap 32, a triangular extrusion part 33b protruding upwards is arranged in the middle of the linkage rod 330, a second protruding part 33a is arranged at the rear end of the linkage rod 330, the rear end of the needle core pressing cap 32 is connected with the rear lantern ring 33, and the front end of the needle core pressing cap extends out of the mounting cylinder 3;
the first transverse spring 37 is sleeved on the guide rod 39, and the front end of the first transverse spring abuts against the front lantern ring 30 to press the front lantern ring against the inner wall of the front side of the mounting cylinder 3;
the second transverse spring 38 is sleeved on the guide rod 39, and the front end of the second transverse spring abuts against the rear lantern ring 33 to press the rear lantern ring against the isolation section 39a;
the front sliding piece 35 is arranged on the inner wall of the mounting cylinder 3 and is positioned between the isolation section 39a and the front collar 30, a first vertical spring 40 is arranged on the upper side of the front sliding piece 35, and the lower end of the first vertical spring 40 props against the front sliding piece 35 to press the front sliding piece to the linkage rod 330;
The rear sliding piece 36 is arranged on the inner wall of the mounting cylinder 3 and positioned at the rear side of the rear collar 33, the lower end of the rear sliding piece 36 is provided with a third protruding part 360, the front side of the rear sliding piece 36 is provided with a second extrusion inclined plane 36a, and the rear side is provided with a third extrusion inclined plane 36b;
The firing bar 34 is arranged in the mounting cylinder 3 in a back-and-forth sliding way, and the firing bar 34 extends forwards to the lower side of the rear sliding piece 36;
the upper side of the rear sliding piece 36 is provided with a second vertical spring 41, and the lower end of the second vertical spring 41 butts against the rear sliding piece 36 to press the firing bar 34.
A further improvement or preferred embodiment of the foregoing one-button continuous firing full-automatic biopsy needle, wherein the front side of the first protruding portion 30a is provided with a first vertical positioning surface 30s for docking and positioning with the rear side of the syringe pressing cap 31;
The front side of the second protruding part 33a is provided with a second vertical positioning surface 33d for abutting against the rear sliding part 36, and the rear side of the rear sliding part 36 is correspondingly provided with a third vertical positioning surface 36s;
The front side inner wall of the mounting cylinder 3 is provided with a front limiting wall surface 3a for blocking the front collar 30, and the rear side inner wall is provided with a rear limiting wall surface 3b for blocking the rear collar 33.
In a further improved or preferred embodiment of the foregoing one-button continuous firing full-automatic biopsy needle, the inner wall of the mounting cylinder 3 is provided with a positioning column 3z for supporting the first vertical spring 40 and the second vertical spring 41, and a guiding column 3t for controlling the sliding direction of the front slider 35 and the rear slider 36.
Further improvements or preferred embodiments of the foregoing one-button continuous firing fully automatic biopsy needle, the rear end of the firing bar 34 extends rearward to the rear opening of the mounting barrel 3 to form a firing button 34n.
Further improvements to the foregoing one-button continuous firing fully automatic biopsy needle or preferred embodiments, the firing bar 34 is provided with an auxiliary control arm 34a;
the outer wall of the mounting cylinder 3 is provided with a strip-shaped control hole 3e extending along the central axis direction, a control button 3c capable of sliding along the front-back direction is arranged in the strip-shaped control hole, and the control button 3c is connected with an auxiliary control arm 34 a.
In a further improved or preferred embodiment of the foregoing one-button continuous firing full-automatic biopsy needle, the lower edge of the front collar 30 protrudes downward to form a front connecting portion 30j, the syringe mounting hole 30k is provided in the front connecting portion 30j, and the first protruding portion 30a protrudes upward from the upper edge of the front collar 30;
The lower edge of the rear collar 33 protrudes downwards to form a rear connecting part 33j, a needle core mounting hole 33k is formed in the rear connecting part 33j, the linkage rod 330 is formed by extending forwards when the upper edge of the rear collar 33 protrudes upwards, a second protruding part 33a is formed at the rear end of the linkage rod 330 and protrudes upwards, the rear end of the needle core pressing cap 32 is connected with the rear collar 33, and the front end of the needle core pressing cap protrudes from the front end of the mounting cylinder 3.
In a further improvement or preferred embodiment of the foregoing one-button continuous firing full-automatic biopsy needle, a sliding groove 3d is provided at the bottom of the inner wall of the mounting barrel 3, and the front connecting portion 30j and the rear connecting portion 33j slide back and forth along the sliding groove 3 d.
In a further improved or preferred embodiment of the foregoing one-key continuous firing full-automatic biopsy needle, a vertical positioning rod 5 is disposed in the mounting cylinder 3, a through hole is correspondingly disposed on the guide rod 39, and the vertical positioning rod 5 is inserted into the through hole and both ends thereof are fixed on the inner wall of the mounting cylinder 3.
The beneficial effects are that:
the full-automatic biopsy needle with one-key continuous firing adopts the modes of pressing driving, spring power accumulation and one-key firing, is convenient to operate and quick in action, utilizes multiple limiting and guiding and limiting structure association control, has high overall structural strength and good action stability, can effectively ensure the stability and safety of a puncture tool, improves the efficiency of puncture work, and reduces the probability of misoperation or tool occurrence.
Drawings
FIG. 1 is an elevation view of a one-button continuous firing fully automatic biopsy needle;
FIG. 2 is a cross-sectional view of a one-button continuous firing fully automatic biopsy needle;
FIG. 3 is an oblique view of a one-button continuous firing fully automatic biopsy needle;
FIG. 4 is an assembly view of a one-button continuous firing fully automatic biopsy needle;
wherein the reference numerals include:
The syringe 1, the needle core 2, the mounting cylinder 3, the front limit wall 3a, the rear limit wall 3b, the control knob 3c, the slide groove 3d, the bar-shaped control hole 3e, the guide post 3t, the positioning post 3z, the front collar 30, the first protruding portion 30a, the first pressing inclined surface 30b, the front connecting portion 30j, the syringe mounting hole 30k, the first vertical positioning surface 30s, the syringe pressing cap 31, the needle core pressing cap 32, the rear collar 33, the second protruding portion 33a, the second vertical positioning surface 33d, the rear connecting portion 33j, the link lever 330, the needle core mounting hole 33k, the firing lever 34, the auxiliary control arm 34a, the firing button 34n, the front slider 35, the rear slider 36, the second pressing inclined surface 36a, the third pressing inclined surface 36b, the third vertical positioning surface 36s, the third protruding portion 360, the first lateral spring 37, the second lateral spring 38, the guide lever 39, the spacer 39a, the first vertical spring 40, the second vertical spring 41, and the vertical positioning lever 5.
Detailed Description
The present invention will be described in detail with reference to specific examples.
The one-key continuous firing full-automatic biopsy needle is mainly used in various living body puncture sampling operation processes, is used for simplifying operation flow, reducing operation difficulty, helping medical staff to realize one-key sampling operation, shortening operation time and improving operation effectiveness.
The structure of the one-key continuous firing full-automatic biopsy needle is shown in fig. 1-4, and mainly comprises a needle cylinder 1, a needle core 2, a mounting cylinder 3 and a control mechanism arranged in the mounting cylinder 3;
the control mechanism comprises a needle cylinder connecting component, a needle core connecting component, a firing bar 34, a front sliding piece 35, a rear sliding piece 36, a first transverse spring 37, a second transverse spring 38 and a guide bar 39;
Wherein the syringe and the needle core are based on the standardized structural design of the existing sampling needle, and the diameter, structural parameters and the like of the syringe and the needle core are formulated based on the corresponding requirements and technical specifications of the puncture operation.
The application mainly provides a control structure for controlling the actions of the needle cylinder and the needle core, and the specific structure of the control mechanism is shown in figure 2.
The guide rod 39 is mainly used as a guide and control structure for the motion direction of the motion structure, the motion of the rod structure is used for controlling the structure to prevent the locking or the deviation, and meanwhile, the guide rod 39 is used as an associated structure of the internal motion structure, and the consistency of the motion direction is ensured by using a coaxial motion scheme.
The guide rod 39 is arranged in the installation cylinder 3, the middle part of the guide rod 39 is provided with a separation section 39a, in the use process, the guide rod is preferably kept in a fixed state, in order to avoid rotation or front-back sliding, in the embodiment, the installation cylinder 3 is internally provided with a vertical positioning rod 5, the guide rod 39 is correspondingly provided with a through hole, the vertical positioning rod 5 is inserted into the through hole, two ends of the vertical positioning rod 5 are fixed on the inner wall of the installation cylinder 3, the vertical positioning rod 5 can prevent the guide rod from rotating, and in the practical implementation, the vertical positioning rod 5 can be limited by arranging a buckle, a clamping structure or a plane on the inner wall of the installation cylinder 3.
The needle cylinder connecting assembly is used for controlling and connecting the needle cylinder 2 and controlling the action of the needle cylinder 2, and comprises a front lantern ring 30 and a needle cylinder pressing cap 31, wherein the front lantern ring 30 is sleeved at the front end of the guide rod 39 in a front-back sliding way, a needle cylinder mounting hole 30k is formed in the front lantern ring 30, the rear end of the needle cylinder 1 is spliced in the needle cylinder mounting hole 30k, a first protruding part 30a is formed in the front lantern ring 30, a first extrusion inclined plane 30b is formed at the rear side of the first protruding part 30a, the rear end of the needle cylinder pressing cap 31 is connected with the front lantern ring 30, and the front end extends out of the front end of the mounting cylinder 3;
The needle core connecting assembly comprises a rear lantern ring 33 and a needle core pressing cap 32, wherein the rear lantern ring 33 can be sleeved at the rear end of a guide rod 39 in a front-back sliding manner, a needle core mounting hole 33k coaxial with a needle cylinder mounting hole 30k is formed in the rear lantern ring 33, a needle core 2 is inserted into the needle core mounting hole 33k, the front end of the needle core penetrates into the needle cylinder 1, a linkage rod 330 is arranged on the rear lantern ring 33, the front end of the linkage rod 330 extends to the rear side of the needle core pressing cap 32, a triangular extrusion part 33b protruding upwards is arranged in the middle of the linkage rod 330, a second protruding part 33a is arranged at the rear end of the linkage rod 330, the rear end of the needle core pressing cap 32 is connected with the rear lantern ring 33, and the front end of the needle core pressing cap extends out of the mounting cylinder 3;
The first transverse spring 37 is sleeved on the guide rod 39, and the front end of the first transverse spring is propped against the front lantern ring 30 to press the front lantern ring to the inner wall of the front side of the mounting cylinder 3;
the front sliding piece 35 is arranged on the inner wall of the mounting cylinder 3 and is positioned between the isolation section 39a and the front collar 30, a first vertical spring 40 is arranged on the upper side of the front sliding piece 35, and the lower end of the first vertical spring 40 props against the front sliding piece 35 to press the front sliding piece to the linkage rod 330;
The rear sliding part 36 is arranged on the inner wall of the mounting cylinder 3 and is positioned at the rear side of the rear collar 33, a third protruding part 360 is arranged at the lower end of the rear sliding part 36, a second extrusion inclined plane 36a is arranged at the front side of the rear sliding part 36, a third extrusion inclined plane 36b is arranged at the rear side of the rear sliding part, the firing bar 34 can be arranged in the mounting cylinder 3 in a front-back sliding way, the firing bar 34 extends forwards to the lower side of the rear sliding part 36, a second vertical spring 41 is arranged at the upper side of the rear sliding part 36, and the lower end of the second vertical spring 41 props against the rear sliding part 36 to press the firing bar 34.
In order to ensure the stability of the movement directions of the two vertical springs and simplify the structural design, a positioning column 3z for supporting the first vertical spring 40 and the second vertical spring 41 and a guide column 3t for controlling the sliding directions of the front slider 35 and the rear slider 36 are provided on the inner wall of the installation cylinder 3.
In order to ensure that each structure can keep stable connection and joint with fiber in each action node position during operation, in the embodiment, a first vertical positioning surface 30s for butting and positioning with the rear side of the needle cylinder pressing cap 31 is arranged at the front side of the first protruding part 30a, a second vertical positioning surface 33d for butting and positioning with the rear sliding part 36 is arranged at the front side of the second protruding part 33a, and a third vertical positioning surface 36s is correspondingly arranged at the rear side of the rear sliding part 36;
wherein, the front side inner wall of the mounting cylinder 3 is provided with a front limiting wall surface 3a for blocking the front lantern ring 30, and the rear side inner wall is provided with a rear limiting wall surface 3b for blocking the rear lantern ring 33.
For convenience of operation, in this embodiment, the rear end of the firing bar 34 extends rearward to the rear opening of the mounting barrel 3 to form a firing button 34n.
Meanwhile, an auxiliary control arm 34a is provided on the firing bar 34;
the outer wall of the mounting cylinder 3 is provided with a bar-shaped control hole 3e extending along the central axis direction, a control button 3c capable of sliding along the front-rear direction is arranged in the bar-shaped control hole, and the control button 3c is connected with an auxiliary control arm 34 a.
By setting the control arm and the control button to be blocked, a scheme which is convenient to operate under the condition of holding the back hand holding is provided after the control mode of the back end one-key pressing firing.
Wherein the lower edge of the front collar 30 protrudes downward to form a front connecting portion 30j, a syringe mounting hole 30k is provided in the front connecting portion 30j, and a first protruding portion 30a is formed by protruding upward from the upper edge of the front collar 30;
The lower edge of the rear collar 33 protrudes downward to form a rear connecting portion 33j, a needle core mounting hole 33k is formed in the rear connecting portion 33j, a linkage rod 330 is formed by extending forward from the upper edge of the rear collar 33 to protrude upward, a second protruding portion 33a is formed at the rear end of the linkage rod 330 and protrudes upward, the rear end of the needle core pressing cap 32 is connected with the rear collar 33, and the front end of the needle core pressing cap protrudes from the front end of the mounting cylinder 3.
To ensure uniformity and stability of the moving direction, a sliding groove 3d is provided at the bottom of the inner wall of the mounting cylinder 3, and the front connecting portion 30j and the rear connecting portion 33j slide back and forth along the sliding groove 3 d.
The following is a method for using the one-key continuous firing full-automatic biopsy needle:
after the biopsy needle is assembled in the configuration shown in fig. 2, sampling and sample removal is accomplished based on the following steps:
1. simultaneously pressing the syringe pressing cap 31 and the plunger pressing cap 32;
The syringe pressing cap 31 drives the front collar 30 to move backward, and the first extrusion inclined surface 30b on the rear side of the first protruding part 30a on the front collar 30 extrudes the front slider 35 to force it to move upward until the first protruding part 30a moves to the rear side of the front slider 35;
The needle pressing core pressing cap 32 drives the rear collar 33 to move backwards, and the second bulge 33a on the rear collar 33 presses the second extrusion inclined surface 36a on the rear sliding piece 36 to move upwards until the second bulge 33a moves to the rear side of the rear sliding piece 36;
in the process, the first transverse spring 37, the second transverse spring 38, the first vertical spring 40 and the second vertical spring 41 are pressed;
2. releasing the syringe pressing cap 31 and the plunger pressing cap 32;
After release, the first vertical spring 40 forces the front slider 35 to move downwards, the first transverse spring 37 forces the front collar 30 to move forwards, so that the front side of the first protruding part 30a is locked against the rear side of the front slider 35, at this time, the syringe 2 is locked along with the front collar 30, and the first transverse spring 37 accumulates potential;
the second vertical spring 41 forces the rear slider 36 to move downwards, the second transverse spring 38 forces the rear collar 33 to move forwards, the front side of the second protruding part 33a is locked against the rear side of the rear slider 36, the needle core is then locked by the collar 33, and the second transverse spring 38 stores potential;
2. Pressing the firing bar 34, the front end of the firing bar 34 presses the third pressing inclined surface 36b at the rear side of the third protruding part 360 to move the rear sliding part 36 upwards, after a certain distance of upward movement, the second protruding part 33a is separated from the rear sliding part 36, the second transverse spring 38 is released and pushes the rear lantern ring 33 to move forward quickly, the needle core 2 moves forward to penetrate into the tissue, when the rear lantern ring 33 approaches the isolation section 39a and is pressed against the triangular pressing part 33b at the middle part of the linkage rod 330 on the rear lantern ring 33 to press the front sliding part 35 to move upwards, after a certain distance of upward movement, the first protruding part 30a is separated from the front sliding part 35, and the first transverse spring 37 is released and pushes the needle cylinder 1 to move forward to penetrate into the tissue quickly, and penetration is completed;
3. After the puncture is confirmed, the sampling needle is moved back;
Pressing the syringe pressing cap 31 independently again, wherein the syringe pressing cap 31 drives the front collar 30 to move backwards, the first extrusion inclined surface 30b at the rear side of the first protruding part 30a on the front collar 30 extrudes the front sliding part 35 to force the front sliding part to move upwards until the first protruding part 30a moves to the rear side of the front sliding part 35, at the moment, the syringe 1 moves backwards to expose the needle core in the syringe 1, simultaneously exposes a tissue sample, and the front end of a sampling needle is put into medicaments such as a fixing agent, washed and rocked lightly to separate the sample from the needle core 2 to finish sampling;
in practical use, according to the practical production method or process requirement, the above-mentioned steps may be integrated to simplify the structural design or generate the manufacturing cost, for example, in practical implementation, the syringe and the correspondingly connected front collar 30 may be integrated with the syringe and the correspondingly connected rear collar 33 by adopting an integrated processing and embedding manner, so as to prevent the syringe of the syringe from being separated or swaying back and forth.
Or the conventional manner or structure is adopted, and the movement precision and stability are further improved on the premise of the basic scheme, for example, in order to ensure that the firing bar 34, the linkage bar 330, the front and rear sliding parts and the front and rear lantern rings keep straight and same direction movement in the movement process, guide strips such as 9a guide grooves in fig. 2 are arranged between the inner wall of the mounting cylinder and the action structure, or structures such as mutually supported planes or guide grooves are arranged between the action structures.
Therefore, the above embodiments are only for illustrating the technical solution of the present invention, not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted with respect to the known techniques without departing from the spirit and scope of the technical solution of the present invention.
Claims (6)
1. A one-key continuous firing full-automatic biopsy needle comprises a needle cylinder (1) and a needle core (2), and is characterized by also comprising a mounting cylinder (3) and a control mechanism arranged in the mounting cylinder (3);
the control mechanism comprises a needle cylinder connecting assembly, a needle core connecting assembly, a firing bar (34), a front sliding piece (35), a rear sliding piece (36), a first transverse spring (37), a second transverse spring (38) and a guide bar (39);
The guide rod (39) is arranged in the mounting cylinder (3), and the middle part of the guide rod (39) is provided with an isolation section (39 a);
The needle cylinder connecting assembly comprises a front sleeve ring (30) and a needle cylinder pressing cap (31), wherein the front sleeve ring (30) is sleeved at the front end of a guide rod (39) in a front-back sliding manner, a needle cylinder mounting hole (30 k) is formed in the front sleeve ring (30), the rear end of a needle cylinder (1) is inserted into the needle cylinder mounting hole (30 k), a first protruding part (30 a) protruding is formed in the front sleeve ring (30), a first extrusion inclined surface (30 b) is formed in the rear side of the first protruding part (30 a), the rear end of the needle cylinder pressing cap (31) is connected with the front sleeve ring (30), and the front end extends out of the front end of a mounting cylinder (3);
The needle core connecting assembly comprises a rear lantern ring (33) and a needle core pressing cap (32), wherein the rear lantern ring (33) is sleeved at the rear end of a guide rod (39) in a front-back sliding mode, a needle core mounting hole (33 k) coaxial with a needle cylinder mounting hole (30 k) is formed in the rear lantern ring (33), a needle core (2) is inserted into the needle core mounting hole (33 k) and penetrates into a needle cylinder (1) at the front end, a linkage rod (330) is arranged on the rear lantern ring (33), the front end of the linkage rod (330) extends to the rear side of the needle core pressing cap (32), a triangular pressing part (33 b) protruding upwards is arranged in the middle of the linkage rod (330), a second protruding part (33 a) is arranged at the rear end of the linkage rod (330), the rear end of the needle core pressing cap (32) is connected with the rear lantern ring (33), and the front end of the needle core pressing cap extends out of the mounting cylinder (3);
The first transverse spring (37) is sleeved on the guide rod (39), and the front end of the first transverse spring props against the front sleeve ring (30) to press the front sleeve ring to the inner wall of the front side of the mounting cylinder (3);
The second transverse spring (38) is sleeved on the guide rod (39), and the front end of the second transverse spring props against the rear sleeve ring (33) to press the rear sleeve ring to the isolation section (39 a);
The front sliding piece (35) is arranged on the inner wall of the mounting cylinder (3) and positioned between the isolation section (39 a) and the front sleeve ring (30), a first vertical spring (40) is arranged on the upper side of the front sliding piece (35), and the lower end of the first vertical spring (40) props against the front sliding piece (35) to press the front sliding piece to the linkage rod (330);
the rear sliding piece (36) is arranged on the inner wall of the mounting cylinder (3) and positioned at the rear side of the rear sleeve ring (33), a third protruding part (360) is arranged at the lower end of the rear sliding piece (36), a second extrusion inclined plane (36 a) is arranged at the front side of the rear sliding piece (36), and a third extrusion inclined plane (36 b) is arranged at the rear side of the rear sliding piece;
the firing rod (34) can be arranged in the mounting cylinder (3) in a front-back sliding way, and the firing rod (34) extends forwards to the lower side of the rear sliding piece (36);
The upper side of the rear sliding piece (36) is provided with a second vertical spring (41), and the lower end of the second vertical spring (41) props against the rear sliding piece (36) to press the rear sliding piece to the firing bar (34);
the lower edge of the front lantern ring (30) protrudes downwards to form a front connecting part (30 j), the syringe mounting hole (30 k) is formed in the front connecting part (30 j), and the first protruding part (30 a) is formed by protruding upwards from the upper edge of the front lantern ring (30);
The needle core mounting hole (33 k) is arranged at the rear connecting part (33 j), the linkage rod (330) is formed by extending the upper edge of the rear sleeve ring (33) forwards when protruding upwards, the second protruding part (33 a) is arranged at the rear end of the linkage rod (330) and protrudes upwards, the rear end of the needle core pressing cap (32) is connected with the rear sleeve ring (33), and the front end of the needle core pressing cap protrudes from the front end of the mounting cylinder (3);
The bottom of the inner wall of the mounting cylinder (3) is provided with a sliding groove (3 d), and the front connecting part (30 j) and the rear connecting part (33 j) slide back and forth along the sliding groove (3 d).
2. The full-automatic biopsy needle with one-key continuous firing according to claim 1, wherein the front side of the first protruding portion (30 a) is provided with a first vertical positioning surface (30 s) for butt positioning with the rear side of the syringe pressing cap (31);
the front side of the second protruding part (33 a) is provided with a second vertical positioning surface (33 d) for being in butt joint with the rear sliding part (36), and the rear side of the rear sliding part (36) is correspondingly provided with a third vertical positioning surface (36 s);
the front side inner wall of the mounting cylinder (3) is provided with a front limiting wall surface (3 a) for blocking the front collar (30), and the rear side inner wall is provided with a rear limiting wall surface (3 b) for blocking the rear collar (33).
3. The full-automatic biopsy needle with one-key continuous firing according to claim 1, wherein a positioning column (3 z) for supporting the first vertical spring (40) and the second vertical spring (41) and a guiding column (3 t) for controlling the sliding direction of the front sliding member (35) and the rear sliding member (36) are arranged on the inner wall of the mounting cylinder (3).
4. The full-automatic biopsy needle with one-key continuous firing according to claim 1, wherein the rear end of the firing bar (34) extends backwards to the rear opening of the mounting barrel (3) to form a firing button (34 n).
5. The one-button continuous-firing full-automatic biopsy needle of claim 1, wherein an auxiliary control arm (34 a) is provided on the firing bar (34);
The outer wall of the mounting cylinder (3) is provided with a strip-shaped control hole (3 e) extending along the central shaft direction, a control button (3 c) capable of sliding along the front-back direction is arranged in the strip-shaped control hole, and the control button (3 c) is connected with an auxiliary control arm (34 a).
6. The full-automatic biopsy needle with one-key continuous firing according to claim 1, wherein a vertical positioning rod (5) is arranged in the mounting cylinder (3), a through hole is correspondingly arranged on the guide rod (39), and the vertical positioning rod (5) is inserted into the through hole and two ends of the vertical positioning rod are fixed on the inner wall of the mounting cylinder (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310361176.9A CN116636883B (en) | 2023-04-06 | 2023-04-06 | A one-button continuous firing fully automatic biopsy needle |
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| CN202310361176.9A CN116636883B (en) | 2023-04-06 | 2023-04-06 | A one-button continuous firing fully automatic biopsy needle |
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| CN116636883B true CN116636883B (en) | 2025-08-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108577900A (en) * | 2018-05-22 | 2018-09-28 | 杭州丽康医学科技股份有限公司 | A kind of percutaneous transthoracic needle biopsy needle that semi-automatic can automatically switch |
| CN113440177A (en) * | 2020-03-27 | 2021-09-28 | 普昂(杭州)医疗科技有限公司 | Biopsy device and trigger unlocking mechanism thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2845266B1 (en) * | 2002-10-03 | 2004-12-17 | Porges Sa | DEVICE FOR TAKING A BODY SAMPLE |
| WO2016037192A1 (en) * | 2014-09-05 | 2016-03-10 | Jj Dogs, Llc | Improvements for a full core biopsy device |
| CN209450567U (en) * | 2017-12-29 | 2019-10-01 | 桐庐前沿医疗科技有限公司 | Biopsy needle is used in a kind of puncture |
| CN213249316U (en) * | 2020-08-28 | 2021-05-25 | 江西欧德医疗器材有限公司 | Suction type biopsy needle |
| CN215227920U (en) * | 2021-04-09 | 2021-12-21 | 西安高通医学发展有限公司 | Full-automatic biopsy needle |
| CN113768550B (en) * | 2021-09-18 | 2023-09-15 | 德林医疗科技(武汉)有限公司 | Biopsy needle device and single-time loading firing mechanism thereof |
| CN114948122A (en) * | 2022-05-18 | 2022-08-30 | 舞阳县人民医院 | Interventional department puncture device with adjustable puncture depth |
| CN217611172U (en) * | 2022-05-31 | 2022-10-21 | 成都福瑞顿科技有限公司 | Semi-automatic biopsy needle safety locking device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108577900A (en) * | 2018-05-22 | 2018-09-28 | 杭州丽康医学科技股份有限公司 | A kind of percutaneous transthoracic needle biopsy needle that semi-automatic can automatically switch |
| CN113440177A (en) * | 2020-03-27 | 2021-09-28 | 普昂(杭州)医疗科技有限公司 | Biopsy device and trigger unlocking mechanism thereof |
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| CN116636883A (en) | 2023-08-25 |
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