CN104739457B - Electric bone biopsy device - Google Patents
Electric bone biopsy device Download PDFInfo
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- CN104739457B CN104739457B CN201510179817.4A CN201510179817A CN104739457B CN 104739457 B CN104739457 B CN 104739457B CN 201510179817 A CN201510179817 A CN 201510179817A CN 104739457 B CN104739457 B CN 104739457B
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Abstract
The invention relates to an electric bone biopsy device. The device comprises a power driver. The output end of the power driver is connected with a disposable biopsy needle locking unit through an adapter joint. A disposable biopsy needle is fixed and locked on the disposable biopsy needle locking unit. A needle holding unit is sleeved on the disposable biopsy needle in a sliding mode. The electric bone biopsy device is suitable for being operated through the power driver, and compared with a standard manual biopsy needle, large samples can be provided, produced pains are small, and use time is little. The overall appearance of the device is designed through human engineering, so that the device is convenient to operate and comfortable to touch; the power driver can be used for one time or more, and fixed rotation speed and torque are provided for disposable biopsy needle.
Description
Technical field
The present invention is more particularly to a kind of electrical bone biopsy device with regard to a kind of device for tissue biopsy.
Background technology
Biopsy needle is a kind of medical apparatus and instruments, it is adaptable to the various organs of human body, can be used for cone tumor and not clear species tumor
Deng living tissue sampling, draw cell.It is detachable using outer pin, injectable hemorrhage and treatment etc..Since 1971
After the manual biopsy needle of Jamshidi companies production, bone biopsy technology does not obtain any substantive breakthroughs.
Thus, the present inventor proposes a kind of electrical bone biopsy device by the experience and practice of being engaged in relevant industries for many years,
To overcome the defect of prior art.
The content of the invention
It is an object of the invention to provide a kind of electrical bone biopsy device, it is adaptable to grasped by Power Drive Unit
Make, bigger sample can be provided relative to the manual biopsy needle of standard, the pain of generation is little, and the time used is few.
The object of the present invention is achieved like this, and a kind of electrical bone biopsy device, the electrical bone biopsy device include one
Power drill/driver, the outfan of the power drill/driver connect disposable biopsy needle locking device by an adapter coupling, and described one
Fixed on secondary property biopsy needle locking device to lock once property biopsy needle, slip on the disposable biopsy needle is arranged with one and helps pin
Device.
In a better embodiment of the present invention, disposable biopsy needle includes nook closing member part, needle tubing part and fixes outer
Set；The nook closing member part includes nook closing member and needle core base, and needle core base is coaxially fixed on the afterbody of nook closing member；Needle tubing part include needle tubing and
Needle tubing seat, needle tubing seat are coaxially fixed on the afterbody of needle tubing；The nook closing member is coaxially located in needle tubing, and the head of nook closing member stretches out needle tubing
Head, the needle tubing base rear end is resisted against needle core base front end；The fixed jacket is set in the outside of needle tubing seat and needle core base
And be threadedly coupled with needle tubing seat；The afterbody of fixed jacket is provided with rotation cooperating portion, and the back-end closure of fixed jacket, needle core base
Rear end is resisted against the rear end of fixed jacket；Being formed between the needle core base and fixed jacket prevents relative turn of both circumferencial directions
Dynamic holding section.
In a better embodiment of the present invention, the front portion of needle core base is a cylinder, and cylindrical rear portion is coaxially provided with
Multi-faceted column, the external diameter of multi-faceted column are less than cylinder external diameter；The nook closing member afterbody be co-axially inserted inside needle core base and and its
It is fixedly connected；The anterior inside and outside wall of the fixed jacket is cylinder, and the rear inside wall and outer wall of fixed jacket are respectively post
Shape polyhedron, the cylindricality polyhedron of fixed jacket rear portion outer wall form the rotation cooperating portion, the fixed jacket rear portion
The cylindricality polyhedron of inwall coordinates the composition holding section with the multi-faceted column at needle core base rear portion.
In a better embodiment of the present invention, it is grips that needle tubing seat is anterior, and grips rear end is coaxially provided with connection
Portion, grips are located at outside fixed jacket, and the outer wall circumference of grips is equipped with the lines of projection；The connecting portion is cylinder
Shape, the outer wall of connecting portion are provided with screw thread and are connected with the female thread of fixed jacket cylinder shape inner wall；Through the grips and connection
The center in portion is provided with through hole, and needle tubing afterbody is co-axially inserted in the through hole and is fixedly connected.
In a better embodiment of the present invention, the rear end of needle tubing seat connecting portion is coaxially provided with a female Luer, Rule
The inner chamber of joint is connected with the through hole；A cylindrical cavity, the needle core base are provided with one heart in the anterior cylinder body of needle core base
The rear end of needle tubing seat connecting portion is resisted against at the top of cylinder, and the female Luer is extend in cylindrical cavity；Cylinder
Cavity bottom is extended with a protuberance around nook closing member forward, and the protuberance is extend into inside female Luer, and protuberance outer wall is
The coned face coordinated with the female Luer inwall.
In a better embodiment of the present invention, the cylinder shape inner wall of fixed jacket is provided with one and can be connected with needle tubing seat
The circular orientation stage portion that the rear end in portion leans, the circular orientation stepped portions are in fixed jacket cylinder shape inner wall female thread
Below and its internal diameter more than needle core base cylinder external diameter, less than the external diameter of needle tubing seat connecting portion.
In a better embodiment of the present invention, the diameter of the cylindricality polyhedron inwall of fixed jacket is less than in cylinder
The diameter of wall, and both junctions are provided with the first circular cone chamfering；The needle core base back edge is provided with the second circular cone chamfering.
In a better embodiment of the present invention, the back edge of fixed jacket is provided with the 3rd circular cone chamfering；It is fixed outer
The cylindrical outer wall of set is provided with first annular groove；The outer wall of the needle tubing is provided with scale.
In a better embodiment of the present invention, pin device is helped to include inner core, rubber parts and overcoat；The front end of the overcoat
Closing, open rearward end are simultaneously coaxially set in outside inner core；The front end center of inner core is provided with groove, and rubber parts is embedded in the groove
It is interior；The front end of inner core is resisted against the front end of overcoat；Center through the inner core, rubber parts and overcoat is provided with and passes through for biopsy needle
Axially extending bore.
In a better embodiment of the present invention, inner core and overcoat are cylinder, are rotation between inner core and overcoat
Connect together.
In a better embodiment of the present invention, the bottom of inner core is provided with first annular projection, in the overcoat rear end
Wall is provided with the first annular groove with first annular male cooperation, and first annular projection is resisted against in the first annular groove, the bottom surface of inner core with
The bottom surface of overcoat flushes.
In a better embodiment of the present invention, the inwall of overcoat is provided with the second annular protrusion, outside the inner core
Wall and the second annular protrusion are correspondingly provided with the second annular groove, and the second annular protrusion is located in the second annular groove.
In a better embodiment of the present invention, the outer wall of overcoat sets irregular lines, and the front end of overcoat surrounds institute
State；The groove and rubber parts of inner core front end is square.
In a better embodiment of the present invention, disposable biopsy needle locking device includes axle sleeve, rotating shaft and slip cap；
Cylindrical shroud barrel part of the axle sleeve for open at both ends, the rear end of axle sleeve be fixedly connected with adapter coupling or with adapter coupling one
Body is formed；The inwall of axle sleeve is provided with annular table shoulder；The front portion of rotating shaft is hollow socket part, and the rear portion of rotating shaft is and socket part
Coaxial drive connection portion；The outer wall of the socket part is cylinder, has a diameter larger than the diameter in drive connection portion, socket part
Inwall is the cylindricality polyhedron being engaged with the rotation cooperating portion at the fixed jacket rear portion；The socket part of rotating shaft is co-axially located at
The inside of axle sleeve, socket part front end are resisted against annular table shoulder, and the outer wall of socket part is contacted with the inwall of axle sleeve and relative can be turned
It is dynamic；It is located on sleeve lining behind the rear end of socket part and is provided with cannelure, in cannelure, be provided with back-up ring, back-up ring is resisted against socket part
Rear end；Slip cap is coaxially set in the front outsides of axle sleeve, and annular gap, annular gap are formed between slip cap and axle sleeve
Compression spring is provided with inside, compression spring one end is resisted against on axle sleeve, the other end is resisted against on slip cap；Before slip cap
Axle sleeve outer wall is provided with circlip groove, and retaining ring for shaft shoulder is provided with circlip groove, and on retaining ring for shaft shoulder axle sleeve outer wall below, even circumferential sets
There are multiple taper open-works, taper open-work, is set in each taper open-work more than in the aperture of sleeve lining in the aperture of axle sleeve outer wall
There is a bead；The anterior inwall of slip cap is sequentially provided with stop surface and stitching surface from front to back, and stop surface backstop is kept off in the shaft shoulder
On circle, stitching surface is contacted with bead and bead is pressed in taper open-work, and the part of bead is projected inwardly into outside taper open-work.
In a better embodiment of the present invention, the anterior stop surface of slip cap is inclined-plane, the inner diameter of slip cap
Outwards gradually increase along inclined-plane.
In a better embodiment of the present invention, the end diameter 0.2-0.5mm less than the diameter of bead of taper open-work；
The outside diameter of taper open-work is bigger than the diameter of bead more than 1.2 times.
In a better embodiment of the present invention, the bottom surface on the inside of socket part is provided with rubber cushion blocks；The inwall of socket part
Leading edge is provided with the 4th circular cone chamfering.
In a better embodiment of the present invention, at a certain distance from being located at behind slip cap on axle sleeve outer wall, a circle is provided with
Backstop bulge loop；It is located on the outer wall of the axle sleeve behind backstop bulge loop and is provided with the second annular groove.
In a better embodiment of the present invention, the front portion of axle sleeve is provided with reducing diameter part, outer wall of the reducing diameter part in axle sleeve
Form first step；On the slip cap, position corresponding with the reducing diameter part is provided with wide diameter portion, and the wide diameter portion is in slip cap inwall
Form second step；Formed between the wide diameter portion and first, second step of reducing diameter part, slip cap in axle sleeve the slip cap with
Annular gap between axle sleeve.
From the above mentioned, electrical bone biopsy device of the invention is operated suitable for by Power Drive Unit, with mark
Accurate manual biopsy needle is compared, the needle tubing no choke of the present invention, and good using power drive concordance, it is to avoid manual operation is missed
Difference, can provide bigger sample relative to the manual biopsy needle of standard, and the pain of generation is little, and the time used is few.This device
Monnolithic case adopts ergonomic designs, and convenient operation, sense of touch are comfortable.Power drill/driver can be used for multiple times or disposably make
With, for disposable biopsy needle provide fixation rotating speed and moment of torsion.
Description of the drawings
The following drawings is only intended in schematic illustration and explanation is done to the present invention, is not delimit the scope of the invention.Wherein：
Fig. 1：For the overall schematic of electrical bone biopsy device of the present invention.
Fig. 2：For the decomposing schematic representation of electrical bone biopsy device of the present invention.
Fig. 3：For the overall schematic of disposable biopsy needle in the present invention.
Fig. 4：For the decomposing schematic representation of disposable biopsy needle in the present invention.
Fig. 5：For the sectional view of disposable biopsy needle in the present invention.
Fig. 6：For the decomposition front view of pin device is helped in the present invention.
Fig. 7：For the exploded perspective view of pin device is helped in the present invention.
Fig. 8：For the sectional view of pin device is helped in the present invention.
Fig. 9：For disposable biopsy needle locking device sectional view in the present invention.
Figure 10：For the exploded view of disposable biopsy needle in the present invention and disposable biopsy needle locking device.
Figure 11：Load the sectional view of disposable biopsy needle locking device for disposable biopsy needle in the present invention, slip cap to
After move.
Figure 12：Load the sectional view of disposable biopsy needle locking device for disposable biopsy needle in the present invention, slip is recovered
Position.
Figure 13：For the broken section enlarged drawing of disposable biopsy needle locking device in the present invention.
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and effect, now control illustrates this
Bright specific embodiment.
As depicted in figs. 1 and 2, the present invention provides a kind of electrical bone biopsy device 1, and including a power drill/driver 50, this moves
The outfan of power drive 50 connects disposable biopsy needle locking device 30, disposable biopsy needle locking by an adapter coupling 40
Fixed on device 30 to lock once property biopsy needle 20, slip on the disposable biopsy needle 20 is arranged with one and helps pin device 10.This
Invention is driven by power drill/driver 50, from bone or osseous tissue takes out sample.Power drill/driver 50 can provide optimal
Rotating speed and moment of torsion obtain biopsy sample to rotate disposable biopsy needle 20.Adapter coupling 40 and disposable biopsy needle locking device
30 is combined, to realize that power drill/driver 50 and the power of disposable biopsy needle 20 are transmitted.Help pin device 10 disposably can live
Slide and stop on inspection pin 20, realize being accurately positioned for paracentesis depth, and a strong strong point is provided for user,
Enhance the reliability for obtaining biopsy sample.
The present invention electrical bone biopsy device 1 relative to standard hand gear can provide bigger sample, produce
Pain little, the used time is few.This device monnolithic case adopts ergonomic designs, and convenient operation, sense of touch are comfortable.Power drives
Dynamic device can be used for multiple times or single use, provide the rotating speed and moment of torsion of fixation for disposable biopsy needle.
Further, as shown in Figures 3 to 5, disposable biopsy needle 20 includes nook closing member part 21, needle tubing part 22 and fixes outer
Set 23；Nook closing member part 21 includes nook closing member 210 and needle core base 211, and needle core base 211 is coaxially fixed on the afterbody of nook closing member 210；Needle tubing portion
22 are divided to include needle tubing 220 and needle tubing seat 221, the outer wall of needle tubing 220 is provided with accurate scale, and needle tubing seat 221 is coaxially fixed on
The afterbody of needle tubing 220；Nook closing member 210 is coaxially located in needle tubing 220, and the head of nook closing member 210 stretches out the head of needle tubing 220, needle tubing
221 rear ends of seat are resisted against 211 front end of needle core base.Fixed jacket 23 is set in outside and the pin of needle tubing seat 221 and needle core base 211
Base 221 is threadedly coupled；The afterbody of fixed jacket 23 is provided with rotation cooperating portion 231, and the rotation cooperating portion 231 can be that cylindricality is more
Face body, the back-end closure of fixed jacket 23, the rear end of needle core base 211 are resisted against the rear end of fixed jacket 23；Needle core base 211 with it is solid
Determine between overcoat 23, to be formed with the holding section for preventing both circumferencial directions from relatively rotating.Specifically, the front portion of needle core base 211 is one
Cylinder 2111,2111 rear portion of cylinder are coaxially provided with multi-faceted column 2112, and the multi-faceted column 2112 can be hexahedro cylinder；It is many
The external diameter of face cylinder 2112 is less than 2111 external diameter of cylinder.210 afterbody of nook closing member is co-axially inserted inside needle core base 211 and solid with which
It is fixed to connect, can be fixed by injection or gluing mode.The anterior inside and outside wall of fixed jacket 23 is cylinder, fixed outer
The rear inside wall and outer wall of set 23 is respectively cylindricality polyhedron, and cylindricality hexahedron is in present embodiment.After fixed jacket 23
The cylindricality hexahedron of portion's outer wall is into rotation cooperating portion 231, cylindricality hexahedron and the needle core base 211 of 23 rear inside wall of fixed jacket
The hexahedro cylinder 2112 at rear portion coordinates composition holding section.It is grips 2211 that needle tubing seat 221 is anterior, and 2211 rear end of grips is coaxial
Connecting portion 2212 is provided with, grips 2211 is located at outside fixed jacket 23, the outer wall circumference of grips 2211 is equipped with projection
Lines, convenient use person take the operation after sterile gloveses, it is to avoid skid.Connecting portion 2212 is cylinder, connecting portion 2212
Outer wall is provided with screw thread and is connected with the female thread of 23 cylinder shape inner wall of fixed jacket；Through in grips 2211 and connecting portion 2212
The heart is provided with through hole, and 220 afterbody of needle tubing is co-axially inserted in the through hole and is fixedly connected, and can be fixed by injection or gluing mode
Connection.
Further, the rear end of needle tubing seat connecting portion 2212 is coaxially provided with a female Luer 2213, and female Luer 2213 is existing
A kind of modular connection having in technology, can connect injection or pumping equipment, to carry out necessary clinical manipulation.Female Luer
2213 inner chamber is connected with the central through hole of grips 2211 and connecting portion 2212；In the cylinder 2111 of 211 front portion of needle core base
A cylindrical cavity is provided with one heart, and the top of needle core base cylinder 2111 is resisted against the rear end of needle tubing seat connecting portion 2212, and Shandong
You are extend in cylindrical cavity joint 2213；Cylindrical cavity bottom is extended with a protuberance 2113 around nook closing member 210 forward,
The protuberance 2113 is extend into inside female Luer 2213, and 2113 outer wall of protuberance is to coordinate with 2213 inwall of female Luer
Coned face.Nook closing member 210 is penetrated from the female Luer 2213 of needle tubing seat 221, and needle core base 211 is contacted with needle tubing seat 221 with reality
210 tip of existing nook closing member is operated with the fixed of 220 tip of needle tubing.The cylinder shape inner wall of fixed jacket 23 is provided with one can be with needle tubing seat
The circular orientation stage portion 232 that the rear end of connecting portion 2212 leans, to realize being accurately positioned for needle tubing seat 221.The annular is fixed
Position stage portion 232 is located at behind 23 cylinder shape inner wall female thread of fixed jacket and its internal diameter is more than needle core base cylinder 2111
External diameter, less than the external diameter of needle tubing seat connecting portion 2212.The diameter of the cylindricality polyhedron inwall of fixed jacket 23 is less than in cylinder
The diameter of wall, and both junctions are provided with the first circular cone chamfering 233；211 back edge of needle core base is provided with the second circular cone chamfering
2114.The back edge of fixed jacket 23 is provided with the 3rd circular cone chamfering 234；The cylindrical outer wall of fixed jacket is provided with the first ring
Connected in star 235.
The disposable biopsy needle 20 adopts disposable mode, and head end is sharp tip, is arrived for penetrating tissue
Up to the focus edge of myeloid tissue, drawn by needle tubing or gather bone marrow or osseous tissue sample.
Further, as shown in Figure 6 to 8, pin device 10 is helped to include inner core 101, rubber parts 102 and overcoat 103；Overcoat 103
Front end closing, open rearward end be coaxially set in outside inner core 101；The front end center of inner core 101 is provided with square groove 1011,
Rubber parts 102 is square and is embedded in groove 1011；The front end of inner core 101 is resisted against the front end of overcoat 103；Through inner core,
The center of rubber parts and overcoat is provided with the axially extending bore 104 passed through for biopsy needle.Inner core 101 and overcoat 103 are cylinder, interior
Connect to rotate between core and overcoat.The bottom of inner core 101 is provided with first annular raised 1012, and 103 rear end inwall of overcoat is provided with
With first annular raised 1012 the first annular groove for coordinating, first annular raised 1012 are resisted against in the first annular groove, the bottom of inner core 101
Face is flushed with the bottom surface of overcoat 103, makes the mutual restriction of inner core and overcoat, ensures the safety and effectiveness of press fit arrangement.Overcoat 103
Inwall be provided with the second annular protrusion 1031, the outer wall of inner core 101 and the second annular protrusion 1031 are correspondingly provided with the second annular groove
1013, the second annular protrusion 1031 is located in the second annular groove 1013, to realize, in 20 rotation process of disposable biopsy needle, helping pin device
10 inner core 101 will not be separated with overcoat 103, ensure the safe and effective of this structure.Second annular protrusion, 1031 rear portion is provided with flat
Sliding guiding surface, inner core 101 and overcoat 103 adopt plastic material, with certain elastic deformability, inner core 101 and outer
Set 103 can be respectively adopted injection mo(u)lding, and inner core and overcoat are axially aligned carries out press fit arrangement.In the smooth guiding surface makes
Core 101 can pass through the second annular protrusion 1031 when loading overcoat 103, so that the second annular protrusion 1031 snaps onto second
In annular groove 1013.The outer wall of overcoat 103 sets irregular lines, and convenient use person takes the operation after sterile gloveses, it is to avoid beat
It is sliding.The front end of overcoat 103 is provided with dismounting through hole 1032 around axially extending bore 104, convenient by inner core 101 and overcoat 103
Dismantled.
Inner core 101 and 20 common rotation of disposable biopsy needle when this helps pin device 10 to use, user hold overcoat 103 with hand steered
Holding is not rotated.Help pin device 10 slide on disposable biopsy needle 20, on needle tubing 220, have accurate scale, realize puncturing
Depth is accurately positioned, and provides a strong strong point for user, enhances the reliability for obtaining biopsy sample.
Further, as shown in figure 9, disposable biopsy needle locking device 30 includes axle sleeve 301, rotating shaft 302 and slip cap
303；Cylindrical shroud barrel part of the axle sleeve 301 for open at both ends, the rear end of axle sleeve 301 be fixedly connected with adapter coupling 40 or with turn
Joint 40 is integrally formed, and is fixedly connected the connected mode of the connected mode or button bit that can adopt screw thread.Adapter coupling 40
It is fixed on power drill/driver 50.The inwall of axle sleeve 301 is provided with annular table shoulder 3011.The front portion of rotating shaft 302 is hollow set
Socket part 3021, rear portion are the drive connection portion 3022 coaxial with socket part, the drive connection portion 3022 and power drill/driver 50
Outfan cooperatively forms power transmission connection.For example, if the outfan of power drill/driver 50 be triangular form, square, pentagon,
The male end or concave end of the shapes such as octagon, then drive connection portion 3022 is the corresponding concave end of shape or male end,
So as to the rotating speed and torque output of fixation are provided for disposable biopsy needle 20.The outer wall of socket part 3021 is cylinder, its diameter
More than the diameter in drive connection portion 3022, the inwall of socket part 3021 is 231 phase of rotation cooperating portion with 23 rear portion of fixed jacket
The cylindricality polyhedron of cooperation, present embodiment adopt cylindricality hexahedron.The socket part 3021 of rotating shaft is co-axially located at axle sleeve 301
Inside, 3021 front end of socket part are resisted against annular table shoulder 3011, and the outer wall of socket part 3021 is contacted simultaneously with the inwall of axle sleeve 301
Can relatively rotate；It is located on 301 inwall of axle sleeve behind 3021 rear end of socket part and is provided with cannelure 3012, sets in cannelure 3012
There is back-up ring 304, back-up ring 304 is resisted against the rear end of socket part 3021.Back-up ring 304 and 3011 countershaft 302 of annular table shoulder are carried out
The fixation and restriction of axial direction, makes rotating shaft 302 rotate in axle sleeve 301.Slip cap 303 is coaxially set in the front portion of axle sleeve 301
Outside, is formed with annular gap 308 between slip cap 303 and axle sleeve 301, the front portion of axle sleeve 301 is provided with reducing diameter part, the reducing diameter part
First step is formed in the outer wall of axle sleeve；On slip cap 303, position corresponding with the reducing diameter part is provided with wide diameter portion, and the wide diameter portion exists
Slip cap inwall forms second step；Reducing diameter part in axle sleeve 301, between the wide diameter portion of slip cap 303 and first, second step
Form the annular gap 308.Compression spring 305 is provided with annular gap 308,305 one end of compression spring is resisted against axle sleeve 301
On first step, the other end be resisted against on the second step of slip cap 303, compression spring 305 promote slip cap 303 to load one
Contrary axial direction movement of secondary property biopsy needle 20 (in Figure 11, the direction of arrow indication is the direction for loading disposable biopsy needle).
301 outer wall of axle sleeve before slip cap 303 is provided with circlip groove, and retaining ring for shaft shoulder 306, retaining ring for shaft shoulder are provided with circlip groove
On 306 axle sleeve outer walls below, even circumferential is provided with multiple taper open-works 3013 (as shown in figure 13), and taper open-work 3013 is in axle
The aperture of set outer wall is provided with a bead 307 in each taper open-work 3013 more than in the aperture of sleeve lining；Slip cap 303
Anterior inwall is sequentially provided with stop surface 3031 and stitching surface 3032 from front to back, and the stop surface 3031 is inclined-plane, slip cap 303
Inner diameter outwards gradually increase along inclined-plane, 3031 backstop of stop surface on retaining ring for shaft shoulder 306, as shown in figure 13, stitching surface
3032 are contacted with bead 307 and bead are pressed in taper open-work 3013, and the part of bead is projected inwardly into outside taper open-work.
Further, diameter 0.2-0.5mm of the end diameter of taper open-work 3013 less than bead 307；Taper open-work 3013
Outside diameter more than bead 307 more than 1.2 times of diameter, as shown in figure 13, bead 307 is in 303 inner chamber of slip cap and axle sleeve
Can move freely between 301 taper open-work 3013.Bottom surface in socket part 3021 is provided with rubber cushion blocks 3023；Socket part 3021
Inwall leading edge be provided with the 4th circular cone chamfering 3024.Slip cap 303 is located on 301 outer wall of axle sleeve and at a certain distance from below, is provided with one
Circle backstop bulge loop 3015；It is located on the outer wall of axle sleeve 301 behind backstop bulge loop 3015 and is provided with the second annular groove 3014.
On condition that an external force is not applied, compression spring 305 promotes slip cap 303 to the phase for loading disposable biopsy needle 20
Anti- axial direction movement, when the stop surface 3031 of slip cap is contacted with retaining ring for shaft shoulder 306, the mobile stopping of slip cap 303.This
When slip cap 303 stitching surface 3032 it is tangent with bead 307, bead 307 is oppressed in the taper open-work 3013 of axle sleeve 301,
Bead 307 is tight contacted between with 3013 small end of taper open-work, and the part of bead 307 exceeds the small end of taper open-work 3013, Ke Yiyu
On the cylindrical outer wall of fixed jacket, first annular groove 235 is engaged by clamping.The second annular groove 3014 on 301 outer wall of axle sleeve
It is reserved for clinical sterility protection set, sterility protection set is enclosed within power drill/driver, is connect by the annular snap buckle of seam
On the second annular groove 3014.
As shown in Figure 10 and Figure 11, slip cap 303 is applied external force to keep with handss, makes slip cap along axle sleeve 301 to one
The equidirectional movement that secondary property biopsy needle 20 loads, after slip cap 303 is moved rearwards by certain distance, can be with backstop in backstop bulge loop
On 3015, slip cap movement stops, and now compression spring 305 is in compressive state, and bead 307 receives 301 taper of gravity and axle sleeve
The impact of open-work 3013, leaves automatically the small end of taper open-work 3013 and tumbles the big end to taper open-work 3013, bead 307
Divide the big end beyond taper open-work 3013 tangent with the inner chamber of slip cap 303.Then disposable biopsy needle 20 is loaded disposably
Biopsy needle locking device 30.Unclamp handss apply external force, now slip cap 303 in the presence of no external force, compression spring 305
Slip cap 303 is promoted to the opposite shaft orientation direction movement for loading disposable biopsy needle 20, when slip cap 303 stop surface 3031 with
Retaining ring for shaft shoulder 306 contacts, and the movement of slip cap 303 stops.Now the stitching surface 3032 of slip cap 303 is tangent with bead 307, will
Bead 307 is oppressed in the taper open-work 3013 of axle sleeve 301, and bead 307 is tight contacted between with the small end of taper open-work 3013, bead
307 part exceeds 3013 small end of taper open-work, snaps in the first annular of 20 fixed jacket 23 of disposable biopsy needle beyond part
In groove 235 (as shown in figure 12), the axial movement of disposable biopsy needle 20 is limited, now disposable biopsy needle 20 can not
It is enough to remove from disposable biopsy needle locking device 30.In order to eliminate gap, realize disposable biopsy needle 20 in displacement
Accuracy, outside the fixation of the rubber cushion blocks 3023 with disposable biopsy needle 20 of 302 socket part of rotating shaft, 3021 inner bottom surface
Cover 23 rear end faces to be brought into close contact, to eliminate gap.
From the above mentioned, electrical bone biopsy device of the invention is operated suitable for by Power Drive Unit, with mark
Accurate manual biopsy needle is compared, the needle tubing no choke of the present invention, and good using power drive concordance, it is to avoid manual operation is missed
Difference, can provide bigger sample relative to the manual biopsy needle of standard, and the pain of generation is little, and the time used is few.This device
Monnolithic case adopts ergonomic designs, and convenient operation, sense of touch are comfortable.Power drill/driver：Using multiplexing or single use
Form, for disposable biopsy needle provide fixation rotating speed and moment of torsion.
Schematically specific embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to.It is any
Those skilled in the art, done equivalent variations and modification on the premise of the design without departing from the present invention and principle,
The scope of protection of the invention should be belonged to.
Claims (18)
1. a kind of electrical bone biopsy device, it is characterised in that：The electrical bone biopsy device includes a power drill/driver, the power
The outfan of driver connects disposable biopsy needle locking device, the disposable biopsy needle locking device by an adapter coupling
Once property biopsy needle is locked in upper fixation, and slip on the disposable biopsy needle is arranged with one and helps pin device；It is described to help pin device to include
Inner core, rubber parts and overcoat；The front end closing of the overcoat, open rearward end coaxially it is set in outside inner core；The front end of inner core
Center is provided with groove, and rubber parts is embedded in the groove；The front end of inner core is resisted against the front end of overcoat；Through the inner core,
The center of rubber parts and overcoat is provided with the axially extending bore passed through for biopsy needle.
2. electrical bone biopsy device as claimed in claim 1, it is characterised in that：The disposable biopsy needle includes nook closing member portion
Point, needle tubing part and fixed jacket；The nook closing member part includes nook closing member and needle core base, and needle core base is coaxially fixed on the tail of nook closing member
Portion；Needle tubing part includes needle tubing and needle tubing seat, and needle tubing seat is coaxially fixed on the afterbody of needle tubing；The nook closing member is coaxially located in needle tubing
Interior, the head of nook closing member stretches out the head of needle tubing, and the needle tubing base rear end is resisted against needle core base front end；The fixed jacket is set in
The outside of needle tubing seat and needle core base is simultaneously threadedly coupled with needle tubing seat；The afterbody of fixed jacket is provided with rotation cooperating portion, and fixed outer
The back-end closure of set, the rear end of needle core base are resisted against the rear end of fixed jacket；It is formed between the needle core base and fixed jacket
The holding section for preventing both circumferencial directions from relatively rotating.
3. electrical bone biopsy device as claimed in claim 2, it is characterised in that：The front portion of the needle core base is a cylinder,
Cylindrical rear portion is coaxially provided with multi-faceted column, and the external diameter of multi-faceted column is less than cylinder external diameter；The nook closing member afterbody is co-axially inserted
To inside needle core base and be secured to connection；The anterior inside and outside wall of the fixed jacket is cylinder, the rear portion of fixed jacket
Inner and outer wall is respectively cylindricality polyhedron, and the cylindricality polyhedron of fixed jacket rear portion outer wall forms described being rotatably assorted
Portion, the cylindricality polyhedron of the fixed jacket rear inside wall coordinate the composition holding section with the multi-faceted column at needle core base rear portion.
4. electrical bone biopsy device as claimed in claim 3, it is characterised in that：The needle tubing seat is anterior for grips, grip
Portion rear end is coaxially provided with connecting portion, and grips is located at outside fixed jacket, and the outer wall circumference of grips is equipped with the lines of projection；
The connecting portion is cylinder, and the outer wall of connecting portion is provided with screw thread and is connected with the female thread of fixed jacket cylinder shape inner wall；Pass through
The center of the grips and connecting portion is provided with through hole, and needle tubing afterbody is co-axially inserted in the through hole and is fixedly connected.
5. electrical bone biopsy device as claimed in claim 4, it is characterised in that：The rear end of the needle tubing seat connecting portion coaxially sets
There is a female Luer, the inner chamber of female Luer is connected with the through hole；A cylinder is provided with one heart in the anterior cylinder body of needle core base
Shape cavity, is resisted against the rear end of needle tubing seat connecting portion, and the female Luer extend into circle at the top of the needle core base cylinder
In cylindrical cavity；Cylindrical cavity bottom is extended with a protuberance around nook closing member forward, and the protuberance is extend in female Luer
Portion, and protuberance outer wall is the coned face coordinated with the female Luer inwall.
6. electrical bone biopsy device as claimed in claim 5, it is characterised in that：Set on the cylinder shape inner wall of the fixed jacket
There is a circular orientation stage portion that can be leant with the rear end of needle tubing seat connecting portion, the circular orientation stepped portions are in fixed jacket
Behind cylinder shape inner wall female thread and its internal diameter more than needle core base cylinder external diameter, less than the external diameter of needle tubing seat connecting portion.
7. electrical bone biopsy device as claimed in claim 6, it is characterised in that：The cylindricality polyhedron inwall of the fixed jacket
Diameter less than cylinder shape inner wall diameter, and both junction is provided with the first circular cone chamfering；The needle core base back edge
It is provided with the second circular cone chamfering.
8. the electrical bone biopsy device as any one of claim 2 to 7, it is characterised in that：After the fixed jacket
End margin is provided with the 3rd circular cone chamfering；The cylindrical outer wall of fixed jacket is provided with first annular groove；The outer wall of the needle tubing
It is provided with scale.
9. electrical bone biopsy device as claimed in claim 1, it is characterised in that：The inner core and overcoat are cylinder, interior
Connect together to rotate between core and overcoat.
10. electrical bone biopsy device as claimed in claim 9, it is characterised in that：The bottom of the inner core is provided with first annular
Projection, overcoat rear end inwall are provided with the first annular groove with first annular male cooperation, and first annular projection is resisted against first
In annular groove, the bottom surface of inner core is flushed with the bottom surface of overcoat.
11. electrical bone biopsy devices as claimed in claim 10, it is characterised in that：The inwall of the overcoat is provided with the second ring
Shape is raised, and the outer wall of the inner core and the second annular protrusion are correspondingly provided with the second annular groove, and the second annular protrusion is located at the second annular groove
It is interior.
12. electrical bone biopsy devices as claimed in claim 11, it is characterised in that：The outer wall of the overcoat sets irregular stricture of vagina
Road, the front end of overcoat are provided with dismounting through hole around the axially extending bore；The groove of inner core front end and the rubber parts side of being
Shape.
13. electrical bone biopsy devices as claimed in claim 8, it is characterised in that：The disposable biopsy needle locking device bag
Include axle sleeve, rotating shaft and slip cap；Cylindrical shroud barrel part of the axle sleeve for open at both ends, the rear end of axle sleeve are solid with adapter coupling
Fixed connection is integrally formed with adapter coupling；The inwall of axle sleeve is provided with annular table shoulder；The front portion of rotating shaft is hollow socket part,
The rear portion of rotating shaft is the drive connection portion coaxial with socket part；The outer wall of the socket part is cylinder, has a diameter larger than driving
The diameter of connecting portion, the inwall of socket part are the cylindricality polyhedron being engaged with the rotation cooperating portion at the fixed jacket rear portion；
The socket part of rotating shaft is co-axially located at the inside of axle sleeve, and socket part front end is resisted against annular table shoulder, the outer wall and axle of socket part
The inwall contact of set can simultaneously be relatively rotated；It is located on sleeve lining behind the rear end of socket part and is provided with cannelure, sets in cannelure
There is back-up ring, back-up ring is resisted against the rear end of socket part；Slip cap is coaxially set in the front outsides of axle sleeve, between slip cap and axle sleeve
Annular gap is formed with, compression spring in annular gap, is provided with, compression spring one end is resisted against on axle sleeve, the other end is resisted against cunning
It is dynamic to put；Axle sleeve outer wall before slip cap is provided with circlip groove, is provided with retaining ring for shaft shoulder, behind retaining ring for shaft shoulder in circlip groove
Axle sleeve outer wall on even circumferential be provided with multiple taper open-works, taper open-work is in the aperture of axle sleeve outer wall more than in sleeve lining
Aperture, is provided with a bead in each taper open-work；The anterior inwall of slip cap is sequentially provided with stop surface and pressing from front to back
Face, on retaining ring for shaft shoulder, stitching surface is contacted with bead and bead is pressed in taper open-work stop surface backstop, the part of bead to
Inside it is projected into outside taper open-work.
14. electrical bone biopsy devices as claimed in claim 13, it is characterised in that：The anterior stop surface of the slip cap is oblique
Face, the inner diameter of slip cap outwards gradually increase along inclined-plane.
15. electrical bone biopsy devices as claimed in claim 14, it is characterised in that：The end diameter of the taper open-work is than little
The little 0.2-0.5mm of diameter of ball；The outside diameter of taper open-work is bigger than the diameter of bead more than 1.2 times.
16. electrical bone biopsy devices as claimed in claim 15, it is characterised in that：Bottom surface on the inside of the socket part is provided with rubber
Rubber cushion block；The inwall leading edge of socket part is provided with the 4th circular cone chamfering.
17. electrical bone biopsy devices as claimed in claim 16, it is characterised in that：After slip cap is located on the axle sleeve outer wall
A circle backstop bulge loop is provided with a certain distance from face；Backstop bulge loop is located on the outer wall of the axle sleeve, and to be provided with below second annular recessed
Groove.
18. electrical bone biopsy devices as claimed in claim 13, it is characterised in that：The front portion of the axle sleeve is provided with reducing diameter part,
The reducing diameter part forms first step in the outer wall of axle sleeve；On the slip cap, position corresponding with the reducing diameter part is provided with wide diameter portion,
The wide diameter portion forms second step in slip cap inwall；The wide diameter portion and first, second step of reducing diameter part, slip cap in axle sleeve
Between form annular gap between the slip cap and axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179817.4A CN104739457B (en) | 2015-04-16 | 2015-04-16 | Electric bone biopsy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179817.4A CN104739457B (en) | 2015-04-16 | 2015-04-16 | Electric bone biopsy device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104739457A CN104739457A (en) | 2015-07-01 |
| CN104739457B true CN104739457B (en) | 2017-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510179817.4A Active CN104739457B (en) | 2015-04-16 | 2015-04-16 | Electric bone biopsy device |
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| Country | Link |
|---|---|
| CN (1) | CN104739457B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017168375A1 (en) * | 2016-03-31 | 2017-10-05 | Snpshot Trustee Limited | Apparatus and methods for sampling |
| CN109620306B (en) * | 2019-01-14 | 2024-01-02 | 苏州市立普医疗科技有限公司 | Biopsy needle and puncture biopsy device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262676A (en) * | 1979-08-24 | 1981-04-21 | Khosrow Jamshidi | Biopsy needle having integral stylet locking device |
| US7201722B2 (en) * | 2000-04-18 | 2007-04-10 | Allegiance Corporation | Bone biopsy instrument having improved sample retention |
| CN101516274B (en) * | 2006-09-12 | 2011-10-19 | 维达保健公司 | Biopsy devices and related methods |
| BR112014008970A2 (en) * | 2011-10-15 | 2017-05-02 | Transmed7 Llc | methods and devices for soft tissue control biopsy |
| US9883853B2 (en) * | 2013-03-15 | 2018-02-06 | Teleflex Medical Devices S.À.R.L. | Intraosseous device couplers, drivers, kits, and methods |
| CN203988151U (en) * | 2014-08-01 | 2014-12-10 | 温州市中心医院 | A kind of myeloid biopsy needle |
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2015
- 2015-04-16 CN CN201510179817.4A patent/CN104739457B/en active Active
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| Publication number | Publication date |
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| CN104739457A (en) | 2015-07-01 |
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