CN113288234A - Semi-automatic biopsy needle - Google Patents
Semi-automatic biopsy needle Download PDFInfo
- Publication number
- CN113288234A CN113288234A CN202110672549.5A CN202110672549A CN113288234A CN 113288234 A CN113288234 A CN 113288234A CN 202110672549 A CN202110672549 A CN 202110672549A CN 113288234 A CN113288234 A CN 113288234A
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- China
- Prior art keywords
- needle
- groove
- semi
- spring
- seat
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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
-
- 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
- A61B2010/0208—Biopsy devices with actuators, e.g. with triggered spring mechanisms
Abstract
The invention relates to a semi-automatic biopsy needle, which comprises a handle, a shell, a spring seat, a needle tube seat, a needle frame, a spring, a safety rod and a pressing block, wherein a stroke groove is formed in the front side of the safety rod, a sliding table is arranged on one side of the stroke groove, a U-shaped mounting groove in sliding fit with the safety rod is formed in the needle frame, the side wall of the mounting groove is elastically arranged, an opening in the front end of the mounting groove is smaller than the diameter of the safety rod, a limiting bulge is formed in the safety rod, the pressing block is fixedly arranged at the tail end of the handle, the needle frame is pressed when the safety rod is in a locking state, the sliding table of the safety rod is abutted against the pressing block to limit the needle frame, the needle frame cannot be fired, the stroke groove of the safety rod is over against the pressing block when the safety rod is pushed to be unlocked, and the firing can be achieved by pressing the needle frame to finish moving.
Description
Technical Field
The invention relates to the technical field of medical detection equipment, in particular to a semi-automatic biopsy needle.
Background
Tissue tumors are diseases that seriously harm human health and life, and the incidence of the diseases gradually increases and the age of the diseases gradually decreases in recent years, and the incidence of the tumors tends to increase year by year in recent years, so that the nature of the tissue tumors needs to be diagnosed as early as possible. The accurate diagnosis needs to be combined with three steps of clinic, image and pathology, the continuous progress of the imaging technology greatly improves the precision rate of tumor diagnosis, but for some tumors with unobvious imaging characteristics, the pathological diagnosis plays a key role in selecting a treatment scheme, and the pathological diagnosis is carried out through puncture biopsy, so that the method is still an essential way in the tumor diagnosis and treatment process.
A semi-automatic biopsy needle is an important tool for puncture biopsy, and patent document with the publication number of CN209916066U provides a semi-automatic biopsy needle, which comprises a handle and a shell, wherein the handle comprises a handle body, the handle body and the shell are buckled with each other and form a cavity inside, a needle tube seat is arranged in the cavity, an outer needle is fixed on the needle tube seat, an inner needle is arranged in the outer needle in a penetrating manner, a needle seat is fixed at one end of the inner needle, a hook head arranged on the needle seat is hooked with a groove arranged on the needle tube seat, a spring seat is arranged between the needle seat and the needle tube seat and fixed on the handle, the spring seat is fixed on the handle, a spring is clamped between the spring seat and the needle tube seat, a depth mark is fixed on the needle tube seat, a visual window is arranged on the shell, a safety plug is arranged between the tail of the handle and the needle seat and clamped on the needle seat through the groove, the safety plug is firstly dismounted when in use, so the semi-automatic biopsy needle with the structure, the safety structure is complex and the operation is inconvenient.
Disclosure of Invention
The invention aims to provide a semi-automatic biopsy needle which is simple in structure and easy to operate and control.
In order to solve the technical problems, the semi-automatic biopsy needle provided by the invention comprises a handle, a shell, a spring seat, a needle tube seat, a needle frame and a spring, wherein a needle tube is fixedly arranged at the front end of the needle tube seat, the needle tube seat is arranged at the front part of the handle in a sliding manner, the front end of the needle frame extends into the handle and is in transmission fit with the needle tube seat, the tail end of the spring seat is abutted against the tail end of the handle, the spring is arranged between the spring seat and the needle tube seat, a biopsy needle is fixedly arranged on the needle frame and penetrates through the spring seat, the needle tube seat and the needle tube, the semi-automatic biopsy needle further comprises a safety lever and a pressing block, the front side of the safety lever is provided with a stroke groove, one side of the stroke groove is provided with a sliding table, a U-shaped mounting groove in sliding fit with the safety lever is arranged on the needle frame, the side wall of the mounting groove is elastically arranged, the opening at the front end of the mounting groove is smaller than the diameter of the safety lever, a limiting bulge is arranged on the safety lever, and the pressing block is fixedly arranged at the tail end of the handle, the safety rod presses the needle frame when being in a locking state, the sliding table and the pressing block butt of the safety rod limit the needle frame, the firing cannot be completed, the stroke groove of the safety rod just faces the pressing block when the safety rod is pushed to be unlocked, and the firing can be realized by pressing the needle frame to complete the movement.
Furthermore, the rear side of bumper bar is convex to be provided with a locating piece, the rear end of the mounting groove is provided with a locating groove, and the locating piece is clamped into the locating groove during the assembly of the bumper bar, so that the bumper bar can be conveniently installed and located.
Further, the needle tube seat comprises a sleeve and a seat body which are integrally formed, a needle tube sleeve is nested in the sleeve, and the needle tube is fixedly connected with the needle tube sleeve.
Furthermore, the upper end of the seat body is provided with a spring groove, the front end of the spring is arranged in the spring groove, and the tail end of the spring is in plug-in fit with the front end of the spring seat.
Further, the center of spring holder sets up the through-hole that is suitable for the biopsy needle to pass through, the tail end of spring holder sets up preceding separation blade and back separation blade, form the draw-in groove between preceding separation blade and the back separation blade, the tail end of handle sets up limit stop, limit stop's middle part sets up U type groove, and the draw-in groove card is gone into U type inslot, is carried on spacingly by limit stop to the spring holder.
Further, the front end of needle frame sets up the slide bar, set up the spout on the handle, the front end of spout sets up the inclined groove, the both sides of inclined groove set up the buckle, slide bar and spout sliding fit.
Furthermore, the front end protrusion of slide bar sets up the eave tile, the bottom of eave tile sets up the rake with slope groove looks adaptation, the lower extreme of pedestal sets up the lock groove, the tail end in lock groove sets up the communicating eave tile in lock groove, the eave tile card is gone into in the eave tile to when making the needle frame move backward, drive the needle pipe support by slide bar and eave tile and remove.
Further, the middle parts of the two side walls of the buckling groove are provided with a first inclined buckle and a second inclined buckle, and the needle tube frame is moved to the first inclined buckle or the second inclined buckle to be matched with the buckle in a clamping manner, so that loading of the needle tube frame is completed.
Furthermore, a shell clamping groove is formed in the handle, and a shell buckle matched with the shell clamping groove is arranged on the shell, so that the shell and the handle can be assembled conveniently.
Furthermore, the tail end of the needle frame is provided with a push disc, so that the needle frame can be conveniently controlled.
The invention has the technical effects that: (1) compared with the prior art, the biopsy needle has the advantages that the safety rod in sliding fit with the needle frame is arranged, and the stroke groove is formed in the safety rod, so that the stroke limit of the needle frame is relieved when the stroke groove is matched with the pressing block, and the firing is finished; (2) the safety rod can be operated through the sliding rod without being dismounted; the two ends of the safety rod are provided with limiting bulges, so that the safety rod can be prevented from being separated from the mounting groove when sliding; (3) the setting of inclined groove for the slide bar can rise along the inclined groove when the slide bar moves to the rake and contacts with the inclined groove, accomplishes the lift to the needle pipe support, makes the first slope of needle pipe support detain or the second slope is detained and is broken away from the buckle, accomplishes the percussion.
Drawings
The invention is described in further detail below with reference to the drawings of the specification:
FIG. 1 is a perspective view of a semi-automatic biopsy needle;
FIG. 2 is a schematic perspective view of the housing after separation;
FIG. 3 is a schematic diagram of an exploded configuration of a semi-automatic biopsy needle;
FIG. 4 is a perspective view of the needle carriage;
FIG. 5 is a perspective view of the needle hub;
FIG. 6 is a perspective view of the handle;
FIG. 7 is a perspective view of the bumper beam;
FIG. 8 is an enlarged partial schematic view of area A of FIG. 6;
FIG. 9 is a perspective view of a spring seat;
in the figure:
a handle 1, a sliding groove 11, a limit stop 12, a U-shaped groove 13, a shell clamping groove 14, an inclined groove 15, a buckle 16, a needle tube seat sliding groove 17,
a needle tube seat 2, a needle tube 21, a sleeve 22, a seat body 23, a spring groove 24, a buckling groove 25, a first inclined buckle 26, a second inclined buckle 27 and a hook groove 28,
a housing 4, a housing catch 41, a viewing window 42, a depth marking 43,
a safety rod 6, a positioning block 61, a travel groove 62, a sliding table 63, a limiting bulge 64,
a compression block 7 and a spring 8.
Detailed Description
Example 1
As shown in fig. 1 to 9, the semi-automatic biopsy needle of the present embodiment includes a handle 1, a housing 4, a spring seat 5, a needle tube seat 2, a needle holder 3, and a spring 8, wherein the needle tube seat 2 includes an integrally formed sleeve 22 and a seat body 23, a needle tube sleeve is nested in the sleeve 22, a needle tube 21 is fixedly connected with the needle tube sleeve so that the needle tube 21 is fixedly disposed at the front end of the needle tube seat 2, a needle tube seat sliding slot 17 is disposed at the front portion of the handle 1, and the seat body 23 is movably engaged with the needle tube seat sliding slot 17 so that the needle tube seat 2 is slidably disposed at the front portion of the handle 1; the upper end of the seat body 23 is provided with a spring groove 24, the front end of the spring 8 is arranged in the spring groove 24, and the tail end of the spring 8 is in insertion fit with the front end of the spring seat 5, so that the spring 8 is arranged between the spring seat 5 and the needle tube seat 2.
The center of spring seat 5 sets up through-hole 51 that is suitable for biopsy needle 31 to pass through, and the tail end of spring seat 5 sets up preceding separation blade 52 and back separation blade 53, forms draw-in groove 54 between preceding separation blade 52 and the back separation blade 53, and the tail end of handle 1 sets up limit stop 12, and the middle part of limit stop 12 sets up U type groove 13, and draw-in groove 54 blocks into U type groove 13, is spacing by limit stop 12 to spring seat 5.
The needle frame 3 comprises a frame body 32 and a sliding rod 33 arranged at the front end of the frame body 32, a mounting hole 37 is formed in the side wall of the upper part of the frame body 32, and the tail end of the biopsy needle 31 is fixedly arranged in the mounting hole 37; the front end of the biopsy needle 31 is disposed through the spring seat 5, the spring 8, the needle holder 2, and the needle tube 21. The tail end of the frame body 3 is provided with a push disc 38, which is convenient for controlling the needle frame 3.
The handle 1 is provided with a sliding chute 11, the front end of the sliding chute 11 is provided with an inclined chute 15, two sides of the inclined chute 15 are provided with buckles 16, and a sliding rod 33 is in sliding fit with the sliding chute 11.
The front end of the slide bar 33 is protruded with a hook 34, the bottom end of the hook 34 is provided with an inclined part 35 matched with the inclined groove 15, the lower end of the seat body 23 is provided with a buckling groove 25, the tail end of the buckling groove 25 is provided with a hook groove 28 communicated with the buckling groove 25, and the hook 34 is clamped in the hook groove 28, so that when the needle frame 3 moves backwards, the slide bar 33 and the hook 34 drive the needle tube frame 2 to move.
The middle parts of the two side walls of the buckling groove 28 are provided with a first inclined buckle 26 and a second inclined buckle 27, and when the needle tube rack 2 moves to the first inclined buckle 26 or the second inclined buckle 27 and the buckle 16 are clamped and matched, the two-gear loading of the needle tube rack 2 is completed.
The handle 1 is provided with a shell clamping groove 14, and the shell 4 is provided with a shell buckle 41 matched with the shell clamping groove 14, so that the shell 4 and the handle 1 can be assembled conveniently. A visual window 42 is arranged on the handle 1, and a depth mark 43 is arranged on one side of the visual window 42 and used for observing the position of the needle tube rack 2.
Semi-automatic biopsy needle still includes bumper 6 and compact heap 7, the front side of bumper 6 sets up stroke recess 62, one side of stroke recess 62 sets up slip table 63, set up the mounting groove 36 with bumper 6 sliding fit's U type on the needle frame 3, the lateral wall elasticity of mounting groove 36 sets up, be convenient for bumper 6 card income mounting groove 36, mounting groove 36 front end opening is less than the diameter of bumper 6, set up spacing arch 64 on the bumper 6, the fixed tail end that sets up at handle 1 of compact heap 7, the needle frame 3 is pressed when bumper 6 is in lock status, the slip table 63 and the compact heap 7 butt of bumper 6, it is spacing to needle frame 3, can't accomplish the percussion, the stroke recess 62 of bumper 6 is just to compact heap 7 when promoting bumper 6 to unblock, it can realize the percussion to press needle frame 3 to accomplish the removal.
The rear side of the bumper 6 protrudes to form a positioning block 61, the rear end of the mounting groove 36 is provided with a positioning groove 39, and the positioning block 61 is clamped into the positioning groove 39 during assembly of the bumper 6, so that the bumper 6 can be conveniently mounted and positioned.
It should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious variations or modifications which fall within the spirit of the invention are intended to be covered by the scope of the present invention.
Claims (10)
1. The semi-automatic biopsy needle is characterized by comprising a handle, a shell, a spring seat, a needle tube seat, a needle frame and a spring, wherein the needle tube is fixedly arranged at the front end of the needle tube seat, the needle tube seat is arranged in the front of the handle in a sliding manner, the front end of the needle frame extends into the handle and is in transmission fit with the needle tube seat, the tail end of the spring seat is abutted against the tail end of the handle, the spring is arranged between the spring seat and the needle tube seat, the needle frame is fixedly provided with a biopsy needle, the biopsy needle passes through the spring seat, the needle tube seat and the needle tube, the semi-automatic biopsy needle further comprises a safety rod and a pressing block, the front side of the safety rod is provided with a stroke groove, one side of the stroke groove is provided with a sliding table, the needle frame is provided with a U-shaped mounting groove in sliding fit with the safety rod, the side wall of the mounting groove is elastically arranged, the front end opening of the mounting groove is smaller than the diameter of the safety rod, a limiting bulge is arranged on the safety rod, the pressing block is fixedly arranged at the tail end of the handle, the safety rod presses the needle frame when being in a locking state, the sliding table and the pressing block butt of the safety rod limit the needle frame, the firing cannot be completed, the stroke groove of the safety rod just faces the pressing block when the safety rod is pushed to be unlocked, and the firing can be realized by pressing the needle frame to complete the movement.
2. The semi-automatic biopsy needle of claim 1, wherein a positioning block is protruded from the rear side of the bumper, a positioning groove is formed at the rear end of the mounting groove, and the positioning block is clamped into the positioning groove when the bumper is assembled.
3. The semi-automatic biopsy needle of claim 2, wherein the needle hub comprises a sleeve and a seat body which are integrally formed, a needle sleeve is nested in the sleeve, and the needle is fixedly connected with the needle sleeve.
4. The semi-automatic biopsy needle of claim 2 or 3, wherein the upper end of the seat body is provided with a spring groove, the front end of the spring is arranged in the spring groove, and the tail end of the spring is in plug fit with the front end of the spring seat.
5. The semi-automatic biopsy needle according to claim 4, wherein a through hole suitable for passing the biopsy needle is formed in the center of the spring seat, a front blocking piece and a rear blocking piece are arranged at the tail end of the spring seat, a clamping groove is formed between the front blocking piece and the rear blocking piece, a limit stop is arranged at the tail end of the handle, a U-shaped groove is formed in the middle of the limit stop, the clamping groove is clamped into the U-shaped groove, and the spring seat is limited by the limit stop.
6. The semi-automatic biopsy needle of claim 5, wherein a sliding rod is disposed at the front end of the needle frame, a sliding groove is disposed on the handle, an inclined groove is disposed at the front end of the sliding groove, two sides of the inclined groove are provided with buckles, and the sliding rod is in sliding fit with the sliding groove.
7. The semi-automatic biopsy needle according to claim 6, wherein the front end of the slide bar protrudes to form a hook, the bottom end of the hook is provided with an inclined portion matched with the inclined groove, the lower end of the base is provided with a buckling groove, the tail end of the buckling groove is provided with a hook groove communicated with the buckling groove, and the hook is clamped into the hook groove, so that the needle holder is driven by the slide bar and the hook to move when the needle holder moves backwards.
8. The semi-automatic biopsy needle according to claim 7, wherein a first inclined buckle and a second inclined buckle are arranged in the middle of two side walls of the buckling groove, and the needle tube frame is loaded when the needle tube frame moves to the first inclined buckle or the second inclined buckle is matched with the buckle clamp.
9. The semi-automatic biopsy needle of claim 8, wherein the handle is provided with a housing slot, and the housing is provided with a housing snap fit with the housing slot.
10. A semi-automatic biopsy needle according to claim 9, wherein a push disc is provided at the trailing end of the needle holder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110672549.5A CN113288234A (en) | 2021-06-17 | 2021-06-17 | Semi-automatic biopsy needle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110672549.5A CN113288234A (en) | 2021-06-17 | 2021-06-17 | Semi-automatic biopsy needle |
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CN113288234A true CN113288234A (en) | 2021-08-24 |
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CN202110672549.5A Pending CN113288234A (en) | 2021-06-17 | 2021-06-17 | Semi-automatic biopsy needle |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023183774A3 (en) * | 2022-03-23 | 2023-11-30 | University Of Kentucky Research Foundation | Bone biopsy assembly with lost motion receiver |
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2021
- 2021-06-17 CN CN202110672549.5A patent/CN113288234A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023183774A3 (en) * | 2022-03-23 | 2023-11-30 | University Of Kentucky Research Foundation | Bone biopsy assembly with lost motion receiver |
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