CN110292421A - A kind of hematology's marrow puncture device - Google Patents
A kind of hematology's marrow puncture device Download PDFInfo
- Publication number
- CN110292421A CN110292421A CN201910737717.7A CN201910737717A CN110292421A CN 110292421 A CN110292421 A CN 110292421A CN 201910737717 A CN201910737717 A CN 201910737717A CN 110292421 A CN110292421 A CN 110292421A
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- Prior art keywords
- outer catheter
- catheter
- fixedly connected
- hematology
- puncture device
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Classifications
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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
- A61B10/025—Pointed or sharp biopsy instruments for taking bone, bone marrow or cartilage samples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3472—Trocars; Puncturing needles for bones, e.g. intraosseus injections
-
- 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
- A61B10/025—Pointed or sharp biopsy instruments for taking bone, bone marrow or cartilage samples
- A61B2010/0258—Marrow samples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3405—Needle locating or guiding means using mechanical guide means
- A61B2017/3407—Needle locating or guiding means using mechanical guide means including a base for support on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
Abstract
A kind of hematology's marrow puncture device, including the supporting mechanism being detachably arranged on examination couch and the piercing mechanism being arranged on supporting mechanism, piercing mechanism includes needle body, needle body includes the outer catheter of activity setting, outer catheter is communicated with marrow efferent duct, outer catheter internal activity is provided with inner catheter, the outer diameter of inner catheter is less than the internal diameter of outer catheter, one end of inner catheter is communicated with anesthetic input pipe, the other end of inner catheter is fixedly connected with conical needle point after stretching out outer catheter, the diameter of needle point big end and the outer diameter of outer catheter are equal, the outlet being connected with inner catheter is offered on the side wall of needle point, soft plugging sheet is provided on the outside of outlet, the lower part of soft plugging sheet is fixedly connected with needle point.The present invention provides a kind of hematology's marrow puncture device, and positioning accuracy is higher, and is not in the case where anesthetic pollutes bone marrow fluid.
Description
Technical field
The present invention relates to bone marrow aspiration technical field, specifically a kind of hematology's marrow puncture device.
Background technique
Bone marrow puncture is to acquire a kind of common diagnostic techniques of bone marrow fluid, and clinically bone marrow aspiration is also commonly used for haemocyte
Morphological examination, it can also be used to candidate stem cell acquisition, culture, CYTOGENETIC ANALYSIS OF ONE and Pathogen Biology inspection etc..For
The sampling instrument of bone marrow fluid is acquired usually based on medullo-puncture needle, common medullo-puncture needle orientation inaccuracy when puncturing, medullo-puncture needle
Syringe needle may slide into ilium side, not can enter ossis, or penetrate after ossis and be pierced by ossis；Paracentesis depth simultaneously
Also it is unable to accurately control.
In addition, bone marrow aspiration needs first to carry out local anaesthesia before carrying out, the prior art mainly uses two ways, a kind of
It is that local anaesthesia and bone marrow aspiration carry out respectively, pollutes anesthetic will not to bone marrow fluid, but two can be caused to patient
Secondary wound, increase patient suffering, another be by puncture needle injecting narcotic, although a wound can be reduced by,
Anesthetic may be remained inside puncture needle, and bone marrow fluid is polluted.
Summary of the invention
In order to solve deficiency in the prior art, the present invention provides a kind of hematology's marrow puncture device, positioning accuracy
It is higher, and be not in the case where anesthetic pollutes bone marrow fluid.
To achieve the goals above, the present invention use the specific scheme is that a kind of hematology's marrow puncture device, including
The supporting mechanism being detachably arranged on examination couch and the piercing mechanism being arranged on supporting mechanism, piercing mechanism includes needle body,
Needle body includes the outer catheter of activity setting, and outer catheter is communicated with marrow efferent duct, and outer catheter internal activity is provided with inner catheter, interior
The outer diameter of conduit is less than the internal diameter of outer catheter, and one end of inner catheter is communicated with anesthetic input pipe, and the other end of inner catheter is stretched
The needle point of cone is fixedly connected with after outer catheter out, the diameter of needle point big end and the outer diameter of outer catheter are equal, the side wall of needle point
On offer the outlet being connected with inner catheter, soft plugging sheet, the lower part of soft plugging sheet and needle are provided on the outside of outlet
Point is fixedly connected.
As a preferred embodiment, the supporting mechanism includes two horizontally disposed bottom plates, and bottom plate is fixedly connected oriented
The vertical panel of lower extension, the lower end of vertical panel are fixedly connected with horizontal-extending level board, and bottom plate and level board are bonded institute respectively
The upper and lower surfaces of examination couch are stated, fastening bolt is equipped on level board, is vertically installed with support plate on bottom plate, wherein one
A support plate is fixedly connected with horizontal-extending fixed plate, offers sliding slot in fixed plate, another support plate is fixedly connected
There is horizontal-extending movable plate, movable plate is slidably arranged in sliding slot, and the piercing mechanism is arranged on movable plate.
As a preferred embodiment, it is fixedly installed fixing seat and guide holder on the bottom plate, is equipped with and turns in fixing seat
Moving sleeve is fixedly installed ball nut in rotational sleeve, is fitted through in ball nut equipped with lead screw, and one end of lead screw is fixed to be connected
It connects there are two the guide rod parallel with lead screw, guide rod passes through guide holder, and the other end of lead screw reaches above the examination couch
After be fixedly connected with vertically disposed positioning plate.
As a preferred embodiment, the piercing mechanism includes the spherical shell being embedded on the movable plate, the top of spherical shell
A notch is respectively offered with lower part, spherical shell inner rotation is provided with movable balls, and the upper and lower part of movable balls is respectively from two
Notch stretches out, and offers channel in the middle part of movable balls, inner thread sleeve is embedded in vias inner walls, is equipped in channel and interior spiral shell
The external thread sleeve that line sleeve matches is fixedly installed upper limit ring and lower limit ring on the inner wall of external thread sleeve, described
Fixing sleeve is equipped with fixes sleeve on outer catheter, and fixes sleeve passes through upper limit ring and lower limit ring, and fixation is arranged in fixes sleeve
There is phantom ring, and phantom ring is between upper limit ring and lower limit ring.
As a preferred embodiment, the lower surface of the movable plate is fixedly connected there are two the guiding bar extended downwardly, is drawn
Guiding groove is offered on guide rod, sliding is provided with follower lever in guiding groove, and follower lever is fixedly connected with the fixes sleeve.
As a preferred embodiment, it is fixedly installed cricoid cushion block on the movable plate, is fixedly installed card on cushion block
The top of disk, the movable balls is located in the inner hole of chuck.
As a preferred embodiment, the outer catheter is adhesively fixed with the fixes sleeve by medical adhesive tape.
As a preferred embodiment, the piercing mechanism includes link block, is offered on link block described outer for wearing
The through-hole of conduit, and link block is fixedly connected with outer catheter, and the upper end of outer catheter is inserted into rear enclosed in through-hole, the marrow
Efferent duct is connected after passing through link block with the upper end of outer catheter, and fixation is arranged after the inner catheter is pierced by from the upper end of outer catheter
Ring is pressed, presses and is connected between ring and the upper end of outer catheter by spring.
As a preferred embodiment, mounting base is fixedly installed on the link block, rotation is provided with baffle in mounting base,
The inner catheter is fixedly connected with extension board after stretching out in the through-hole.
As a preferred embodiment, the anesthetic input pipe and the marrow efferent duct are removably connected with sealing
Lid.
The utility model has the advantages that the present invention uses split type needle body, the injection of arcotic is completed using inner catheter, utilizes outer catheter
The extraction for completing bone marrow fluid reduces needle thorn number, keeps away compared with the mode of bone marrow extraction liquid after traditional first injecting narcotic
Exempt to cause multi damage to patient, with it is traditional by after a needle body elder generation injecting narcotic bone marrow extraction liquid in the way of compared with,
It effectively prevents anesthetic and remains in needle body to pollute bone marrow fluid.Also, the present invention is in the process for being pierced into patient's body
In, outer catheter is closed using needle point, is closed outlet using soft plugging sheet, it is possible to prevente effectively from needle body is blocked, it is ensured that
Puncture process smoothly completes.In addition, the present invention is supported piercing mechanism using supporting mechanism, positioning when puncture can be improved
Accuracy.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the top view of supporting mechanism；
Fig. 3 is the cross-sectional view of piercing mechanism；
Fig. 4 is the cross-sectional view of link block；
Fig. 5 is the cross-sectional view of needle point.
Detailed description of the invention: 1- examination couch, 2- fastening bolt, 3- level board, 4- vertical panel, 5- bottom plate, 6- fixing seat, 7- rotation
Sleeve, 8- lead screw, 9- guide rod, 10- guide holder, 11- support plate, 12- positioning plate, 13- movable plate, 14- piercing mechanism, 15-
Sliding slot, 16- fixed plate, 17- cushion block, 18- chuck, 19- spherical shell, 20- movable balls, 21- external thread sleeve, 22- fixes sleeve,
23- needle body, 24- link block, 25- anesthetic input pipe, 26- marrow efferent duct, 27- upper limit ring, 28- phantom ring, 29- lower limit
Position ring, 30- inner thread sleeve, 31- guiding bar, 32- guiding groove, 33- follower lever, 34- needle point, 35- inner catheter, 36- outer catheter,
37- spring, 38- through-hole, 39- press ring, 40- mounting base, 41- baffle, 42- extension board, the outlet 43-, the soft plugging sheet of 44-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1 to 5, a kind of hematology's marrow puncture device, including the support being detachably arranged on examination couch 1
Mechanism and the piercing mechanism 14 being arranged on supporting mechanism, piercing mechanism 14 include needle body 23, and needle body 23 includes activity setting
Outer catheter 36, outer catheter 36 are communicated with marrow efferent duct 26, and 36 internal activity of outer catheter is provided with inner catheter 35, inner catheter 35
Outer diameter is less than the internal diameter of outer catheter 36, and one end of inner catheter 35 is communicated with anesthetic input pipe 25, the other end of inner catheter 35
It is fixedly connected with conical needle point 34 after stretching out outer catheter 36, the diameter of 34 big end of needle point is equal with the outer diameter of outer catheter 36,
The outlet 43 being connected with inner catheter 35 is offered on the side wall of needle point 34, the outside for exporting 43 is provided with soft plugging sheet 44,
The lower part of soft plugging sheet 44 is fixedly connected with needle point 34.
In the use of the present invention, contacting needle point 34 with outer catheter 36, outer catheter 36 is closed using needle point 34；So
Anesthetic is sent in inner catheter 35 from anesthetic input pipe 25 afterwards, it can be from outlet 43 after inner catheter 35 is full of by anesthetic
Outflow, soft plugging sheet 44 is by blastic deformation during outflow, to outlet 43 be opened wide, after flowing out a certain amount of anesthetic
It can determine in inner catheter 35 full of anesthetic；Whole advance downwardly of needle body 23 is pierced into patient body later, needle body 23 exists
In moving process, after needle point 34 is pierced into patient tissue, because needle point 34 gradually gos deep into patient tissue, soft closure
Piece 44 can be fitted in always on needle point 34, so that outlet 43 be closed, outlet 43 be avoided to be blocked；When needle point 34 reaches target position
It postpones, continues to convey anesthetic into inner catheter 35, script is located at the anesthetic in inner catheter 35 and is pushed into patient's body, it is complete
At anesthesia；Then, it pushes inner catheter 35 to move integrally, inner catheter 35 and outer catheter 36 is made to be staggered, and push needle point 34 and outer
Conduit 36 separates；Bone marrow fluid is extracted out by outer catheter 36 and marrow efferent duct 26 then, completes entire puncture process.
The present invention uses split type needle body 23, and the injection of arcotic is completed using inner catheter 35, complete using outer catheter 36
At the extraction of bone marrow fluid, compared with the mode of bone marrow extraction liquid after traditional first injecting narcotic, reduces needle thorn number, avoid
Multi damage is caused to patient, with it is traditional by after a needle body elder generation injecting narcotic bone marrow extraction liquid in the way of compared with, have
Effect, which avoids anesthetic and remains in needle body, pollutes bone marrow fluid.Also, the present invention is during being pierced into patient's body,
Outer catheter 36 is closed using needle point 34, is closed outlet 43 using soft plugging sheet 44, it is possible to prevente effectively from needle body 23 is blocked
Plug, it is ensured that puncture process smoothly completes.In addition, the present invention is supported piercing mechanism 14 using supporting mechanism, can be improved
The accuracy positioned when puncture.
Further, supporting mechanism include two horizontally disposed bottom plates 5, bottom plate 5 be fixedly connected with extend downwardly hang down
Straight panel 4, the lower end of vertical panel 4 are fixedly connected with horizontal-extending level board 3, and bottom plate 5 and level board 3 are bonded examination couch 1 respectively
Upper and lower surfaces, be equipped with fastening bolt 2 on level board 3, be vertically installed with support plate 11 on bottom plate 5, one of them
Support plate 11 is fixedly connected with horizontal-extending fixed plate 16, offers sliding slot 15 in fixed plate 16, another support plate 11
It is fixedly connected with horizontal-extending movable plate 13, movable plate 13 is slidably arranged in sliding slot 15, and piercing mechanism 14 is arranged in activity
On plate 13.Before puncture process starts, examination couch 1 is blocked first with bottom plate 5 and level board 3, then adjusts fastening spiral shell
Bolt 2 fixes the position of level board 3 and bottom plate 5, so that supporting mechanism be fixed, after supporting mechanism fixes, setting exists
The position of puncture unit 14 on movable plate 13 is also fixed, to realize the accurate positionin of piercing mechanism 14, and then is improved and is worn
The setting accuracy of thorn process.
Further, it is fixedly installed fixing seat 6 and guide holder 10 on bottom plate 5, rotational sleeve 7 is equipped in fixing seat 6,
It is fixedly installed ball nut in rotational sleeve 7, is fitted through in ball nut equipped with lead screw 8, one end of lead screw 8 is fixedly connected with
Two guide rods 9 parallel with lead screw 8, guide rod 9 passes through guide holder 10, after the other end of lead screw 8 reaches 1 top of examination couch
It is fixedly connected with vertically disposed positioning plate 12.After fixing supporting mechanism, ball is driven by rotary motion sleeve 7
Nut rotation drives lead screw 8 to move horizontally using the cooperation of ball nut and lead screw 8, until two positioning plates 12 are from patient two
Patient is fixed in side, to further increase the positioning accuracy of puncture process.
Further, piercing mechanism 14 includes being embedded the spherical shell 19 on movable plate 13, and the upper and lower part of spherical shell 19 is each
A notch is offered, 19 inner rotation of spherical shell is provided with movable balls 20, and the upper and lower part of movable balls 20 is lacked from two respectively
Mouthful stretch out, the middle part of movable balls 20 offers channel, inner thread sleeve 30 is embedded in vias inner walls, be equipped in channel with it is interior
The external thread sleeve 21 that screw shell 30 matches is fixedly installed upper limit ring 27 and lower limit on the inner wall of external thread sleeve 21
Position ring 29, fixing sleeve is equipped with fixes sleeve 22 on outer catheter 36, and fixes sleeve 22 passes through upper limit ring 27 and lower limit ring 29, Gu
Determine fixing sleeve on sleeve 22 and be equipped with phantom ring 28, and phantom ring 28 is between upper limit ring 27 and lower limit ring 29.By turning
Dynamic movable balls 20 can drive needle body 23 to rotate, and realize the adjusting to puncture angle, all solid in the position of supporting mechanism and patient
In the case where fixed, puncture position can be found accurately, improve the accuracy of puncture process.After determining puncture angle, rotation is outer
Screw shell 21, because external thread sleeve 21 is matched with inner thread sleeve 30, in the process of rotation external thread sleeve 21
In, external thread sleeve 21 can be axially moveable, and then drive phantom ring 28 mobile by upper limit ring 27 and lower limit ring 29,
It finally drives outer catheter 36 mobile using phantom ring 28, the adjusting to 23 position of needle body is realized, when needle body 23 moves down
Time can be pierced into patient's body and be punctured.It should be noted that in order to avoid in rotation 21 rotation process of external thread sleeve
It drives movable balls 20 to rotate, the position of fixed movable balls 20 is needed when rotating external thread sleeve 21, such as hand can be used
Hold movable balls 20.
Further, the lower surface of movable plate 13 is fixedly connected there are two the guiding bar 31 that extends downwardly, in guiding bar 31
Guiding groove 32 is offered, sliding is provided with follower lever 33 in guiding groove 32, and follower lever 33 is fixedly connected with fixes sleeve 22.Guidance
The cooperation of bar 31 and follower lever 33, because of upper limit ring 27 and lower limit ring during being rotated to avoid external thread sleeve 1
Frictional force between 29 and phantom ring 28 drives outer catheter 36 to rotate.
Further, it is fixedly installed cricoid cushion block 17 on movable plate 13, chuck 18 is fixedly installed on cushion block 17, it is living
The top of dynamic ball 20 is located in the inner hole of chuck 18.In order to which easily movable balls 20 are fixed, provided with chuck 18, because
Movable balls 20 are spheres, thus on spherical surface the distance between each point and centre of sphere be it is equal, using chuck 18 can directly by
Movable balls 20 clamp.It should be noted that if movable balls 20 turn to when channel corresponds to chuck 18, the meeting of chuck 18 can not
Movable balls 20 are clamped, but because the position of supporting mechanism and the position of patient are all fixed, and patient is in two positioning plates 12
Under the action of be fixed to the middle part of examination couch 1, so the amplitude very little that movable balls 20 rotate when in use, is not in
Channel corresponds to the case where chuck 18.
Further, outer catheter 36 is adhesively fixed with fixes sleeve 22 by medical adhesive tape.It is bonded using medical adhesive tape solid
Surely outer catheter 36 and fixes sleeve 22 can be made into detachable structure, so as to which needle body 23 to be made into disposably, avoided
Cross contamination all replaces entire sting device without in each puncture, to reduce cost.In order to improve fixed effect
Fruit needs to increase the number of turns of medical adhesive tape winding and the dynamics of winding.In other embodiments of the invention, it can also use
Elastic bumps are arranged using on the outer wall of outer catheter 36 in other detachable connection methods, opened up in fixes sleeve 22 with
Elastic bumps are inserted into and complete to fix in aperture by the aperture of elastic bumps cooperation.
Further, piercing mechanism 14 includes link block 24, is offered on link block 24 for wearing the logical of outer catheter 36
Hole 38, and link block 24 is fixedly connected with outer catheter 36, and the upper end of outer catheter 36 is inserted into rear enclosed in through-hole 38, and marrow is defeated
Outlet pipe 26 is connected after passing through link block 24 with the upper end of outer catheter 36, and inner catheter 35 is fixed after being pierced by from the upper end of outer catheter 36
It is arranged with and presses ring 39, press and be connected between ring 39 and the upper end of outer catheter 36 by spring 37.Push inner catheter 35 with
During outer catheter 36 is staggered, spring 37 is compressed, and after unclamping inner catheter 35, spring 37 resets and pushes inner catheter 35 multiple
Position, closes needle point 34 by outer catheter 36 again, and bone marrow fluid during extraction of needle body 23 is avoided to reveal.
Further, mounting base 40 is fixedly installed on link block 24, rotation is provided with baffle 41 in mounting base 40, inside leads
Pipe 35 is fixedly connected with extension board 42 after stretching out in through-hole 38.After inner catheter 35 and outer catheter 36 are staggered, flap shutter
41 block baffle 41 by extension board 42, so that the position of inner catheter 35 be fixed, avoid inner catheter under the action of spring 37
35 automatically reset.
Further, anesthetic input pipe 25 and marrow efferent duct 26 are removably connected with sealing cover.What is do not used
When anesthetic input pipe 25 and marrow efferent duct 26 are closed using sealing cover, to guarantee to be contaminated.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of hematology's marrow puncture device, it is characterised in that: including the support machine being detachably arranged on examination couch (1)
Structure and the piercing mechanism being arranged on supporting mechanism (14), piercing mechanism (14) include needle body (23), and needle body (23) includes activity
The outer catheter (36) of setting, outer catheter (36) are communicated with marrow efferent duct (26), and outer catheter (36) internal activity is provided with interior lead
It manages (35), the outer diameter of inner catheter (35) is less than the internal diameter of outer catheter (36), and one end of inner catheter (35) is communicated with anesthetic input
It manages (25), the other end of inner catheter (35) is fixedly connected with conical needle point (34), needle point after stretching out outer catheter (36)
(34) outer diameter of diameter with outer catheter (36) of big end is equal, offers on the side wall of needle point (34) and is connected with inner catheter (35)
Outlet (43), be provided with soft plugging sheet (44) on the outside of outlet (43), the lower part of soft plugging sheet (44) and needle point (34)
It is fixedly connected.
2. a kind of hematology's marrow puncture device as described in claim 1, it is characterised in that: the supporting mechanism includes two
A horizontally disposed bottom plate (5), bottom plate (5) are fixedly connected with the vertical panel (4) extended downwardly, and the lower end of vertical panel (4) is fixed
It is connected with horizontal-extending level board (3), bottom plate (5) and level board (3) are bonded the upper surface of the examination couch (1) under respectively
Surface is equipped with fastening bolt (2) on level board (3), support plate (11) is vertically installed on bottom plate (5), one of support
Plate (11) is fixedly connected with horizontal-extending fixed plate (16), and sliding slot (15) are offered in fixed plate (16), another support
Plate (11) is fixedly connected with horizontal-extending movable plate (13), and movable plate (13) is slidably arranged in sliding slot (15), the puncture
Mechanism (14) is arranged on movable plate (13).
3. a kind of hematology's marrow puncture device as claimed in claim 2, it is characterised in that: fixed on the bottom plate (5)
It is provided with fixing seat (6) and guide holder (10), is equipped in fixing seat (6) rotational sleeve (7), fixation is set in rotational sleeve (7)
Be equipped with ball nut, fitted through in ball nut equipped with lead screw (8), one end of lead screw (8) be fixedly connected there are two with lead screw (8)
Parallel guide rod (9), guide rod (9) pass through guide holder (10), and the other end of lead screw (8) reaches on the examination couch (1)
Vertically disposed positioning plate (12) are fixedly connected with behind side.
4. a kind of hematology's marrow puncture device as claimed in claim 2, it is characterised in that: piercing mechanism (14) packet
The spherical shell (19) being embedded on the movable plate (13) is included, the upper and lower part of spherical shell (19) respectively offers a notch, spherical shell
(19) inner rotation is provided with movable balls (20), and the upper and lower part of movable balls (20) is stretched out from two notches respectively, movable balls
(20) channel is offered in the middle part of, is embedded in vias inner walls inner thread sleeve (30), is equipped in channel and inner thread sleeve
(30) external thread sleeve (21) matched is fixedly installed upper limit ring (27) and lower limit on the inner wall of external thread sleeve (21)
Position ring (29), fixing sleeve is equipped with fixes sleeve (22) on the outer catheter (36), and fixes sleeve (22) passes through upper limit ring (27)
With lower limit ring (29), fixing sleeve is equipped with phantom ring (28) in fixes sleeve (22), and phantom ring (28) is located at upper limit ring
(27) between lower limit ring (29).
5. a kind of hematology's marrow puncture device as claimed in claim 4, it is characterised in that: under the movable plate (13)
Surface is fixedly connected there are two the guiding bar (31) that extends downwardly, offers guiding groove (32), guiding groove in guiding bar (31)
(32) sliding is provided with follower lever (33) in, and follower lever (33) is fixedly connected with the fixes sleeve (22).
6. a kind of hematology's marrow puncture device as claimed in claim 4, it is characterised in that: solid on the movable plate (13)
Surely it is provided with cricoid cushion block (17), is fixedly installed on cushion block (17) chuck (18), the top of the movable balls (20) is located at
In the inner hole of chuck (18).
7. a kind of hematology's marrow puncture device as claimed in claim 4, it is characterised in that: the outer catheter (36) and institute
Fixes sleeve (22) is stated to be adhesively fixed by medical adhesive tape.
8. a kind of hematology's marrow puncture device as described in claim 1, it is characterised in that: piercing mechanism (14) packet
It includes link block (24), the through-hole (38) for wearing the outer catheter (36), and link block is offered on link block (24)
(24) it is fixedly connected with outer catheter (36), the upper end of outer catheter (36) is inserted into rear enclosed in through-hole (38), the marrow output
Pipe (26) passes through link block (24) and is connected afterwards with the upper end of outer catheter (36), and the inner catheter (35) is from the upper of outer catheter (36)
End is pierced by rear fixing sleeve equipped with ring (39) are pressed, and presses and is connected between ring (39) and the upper end of outer catheter (36) by spring (37)
It connects.
9. a kind of hematology's marrow puncture device as claimed in claim 8, it is characterised in that: solid on the link block (24)
Surely it is provided with mounting base (40), rotation is provided with baffle (41) in mounting base (40), and the inner catheter (35) is from the through-hole
(38) extension board (42) are fixedly connected with after stretching out in.
10. a kind of hematology's marrow puncture device as described in claim 1, it is characterised in that: the anesthetic input pipe
(25) and the marrow efferent duct (26) is removably connected with sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737717.7A CN110292421B (en) | 2019-08-12 | 2019-08-12 | Bone marrow puncture device for hematology department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737717.7A CN110292421B (en) | 2019-08-12 | 2019-08-12 | Bone marrow puncture device for hematology department |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110292421A true CN110292421A (en) | 2019-10-01 |
| CN110292421B CN110292421B (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910737717.7A Active CN110292421B (en) | 2019-08-12 | 2019-08-12 | Bone marrow puncture device for hematology department |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN112869785A (en) * | 2021-01-29 | 2021-06-01 | 重庆市人民医院 | Clinical sampling censorship equipment that uses of department of neurology |
| CN112890877A (en) * | 2019-11-19 | 2021-06-04 | 西安交通大学医学院第一附属医院 | Nephrology department biopsy puncture device |
| CN113317849A (en) * | 2021-04-22 | 2021-08-31 | 卫飞 | Bone puncture needle emitter |
| CN113729787A (en) * | 2020-05-28 | 2021-12-03 | 上海倍可达医疗科技有限公司 | Biopsy needle assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112890877A (en) * | 2019-11-19 | 2021-06-04 | 西安交通大学医学院第一附属医院 | Nephrology department biopsy puncture device |
| CN113729787A (en) * | 2020-05-28 | 2021-12-03 | 上海倍可达医疗科技有限公司 | Biopsy needle assembly |
| CN111904561A (en) * | 2020-09-14 | 2020-11-10 | 郑州大学第一附属医院 | Marrow cavity puncture needle fixer |
| CN112869785A (en) * | 2021-01-29 | 2021-06-01 | 重庆市人民医院 | Clinical sampling censorship equipment that uses of department of neurology |
| CN112869785B (en) * | 2021-01-29 | 2022-09-06 | 重庆市人民医院 | Clinical sample censorship equipment that uses of department of neurology |
| CN113317849A (en) * | 2021-04-22 | 2021-08-31 | 卫飞 | Bone puncture needle emitter |
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