CN107049433A - A kind of adjustable puncture needle structure in magnetostriction direction - Google Patents
A kind of adjustable puncture needle structure in magnetostriction direction Download PDFInfo
- Publication number
- CN107049433A CN107049433A CN201710310406.3A CN201710310406A CN107049433A CN 107049433 A CN107049433 A CN 107049433A CN 201710310406 A CN201710310406 A CN 201710310406A CN 107049433 A CN107049433 A CN 107049433A
- Authority
- CN
- China
- Prior art keywords
- puncture needle
- guide sleeve
- magnetostriction
- interior
- electrified wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- 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
- A61B10/0045—Devices for taking samples of body liquids
-
- 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
Abstract
The invention provides a kind of adjustable puncture needle structure in magnetostriction direction, it includes：Outer puncture needle；Interior puncture needle, interior Puncture needle sleeve is within outer puncture needle；Propulsive mechanism, propulsive mechanism includes pushing ram, and the front end of pushing ram is fixedly connected with interior puncture needle, and pushing ram is covered within outer puncture needle；Steering mechanism, steering mechanism includes guide sleeve, magnetostriction piece and electrified wire, guide sleeve is covered outside outer puncture needle, simultaneously balanced configuration within magnetostriction piece insertion guide sleeve, electrified wire is located at magnetostriction and turned on guide sleeve, electrified wire is connected with magnetostriction piece, provides the deviation angle of puncture needle in the displacement difference control that different voltages are produced to magnetostriction piece by electrified wire.The present invention passes through important blood vessels and surrounding normal tissue by being inclined to puncture needle in angle control guiding, and simple in construction, control is flexible, and guiding accuracy is high, overcomes existing puncture needle and its auxiliary location structure deficiency that radial orientation is turned to during probeing into.
Description
Technical field
The present invention relates to hygiene surgical instruments puncture needle technical field, and in particular to a kind of adjustable puncture needle in direction
Structure.
Background technology
Puncture is that puncture is needled into human body chamber extraction secretion to chemically examine, and injects gas to body cavity or contrast agent does radiography
Check, or into body cavity injection of medicine a kind of Clinics, it is therefore an objective to blood test, transfuse blood, infuse and insert conduit and do blood
Pipe radiography, is widely used in the surgical technic necks such as brain or spinal cavity puncture, chest body cavity puncture, belly body cavity and organ puncture
Domain.
Chinese patent application 201611214588.6 discloses a kind of full angle guide device, and the patent proposes a kind of
Puncture needle fixed seat structure, and puncture needle fixed seat is placed on arc-shaped slide rail, so that beginning during puncture needle slide
The arc-shaped slide rail centre of sphere is pointed to eventually, realizes that the full angle of puncture needle is punctured.
Chinese patent application 201611099056.2 discloses one kind by sleeve pipe, suction pipe, piercing needle and two by spring
The steel wire composition puncture outfit that Steel material is made, the regulation of axial angle is realized by the revolution of steel wire.
Chinese patent application 201610960958.4 employs three components such as fixed part, rotating part and guide part, realizes
The axial rotation of puncture needle.
Chinese patent application 201610935113.X then uses connecting rod and spherical hinge structure, and point of puncture position is realized in vitro in patient
Put the adjustment with angle.In order to mitigate the damage of patient suffering, reduction to perienchyma, the accuracy requirement of puncture is maintained at
0.5mm-1mm, this index proposes higher requirement to puncture path planning.However, ensureing accurate puncture track rule
Draw simultaneously, be inevitably damaged to some perienchymas, it is especially caused in the release of brain bathystixis Midbrain-spinal liquid
Brain tissue position change.Now, if cerebral blood vessel, cranial nerve fiber etc. can not be avoided, it can cause to intracranial hemorrhage, go out
Existing neurological dysfunction, brings irreparable tissue damage.
Prior art only proposes to improve the accuracy and puncture needle axial-rotation of puncture needle initial alignment, it is impossible to from structure
A kind of design method for avoiding the vital tissues such as blood vessel is proposed in design.In order to make up above design defect, the present invention proposes one
Plant the adjustable puncture needle structure in magnetostriction direction.
The content of the invention
In view of the shortcomings of the prior art, the invention aims to overcome existing puncture needle and its auxiliary location structure to exist
Blood vessel and focus can not be avoided during probeing into, and nearby the not enough of normal vital tissue can adjust there is provided a kind of magnetostriction direction
Formula puncture needle structure.
To achieve these goals, the invention provides a kind of adjustable puncture needle structure in magnetostriction direction.It is wrapped
Include：
Outer puncture needle；
Interior puncture needle, interior Puncture needle sleeve is within outer puncture needle；
Propulsive mechanism, propulsive mechanism includes pushing ram, and the front end of pushing ram is fixedly connected with interior puncture needle, and pushing ram is enclosed on
Within outer puncture needle；
Steering mechanism, steering mechanism include guide sleeve, magnetostriction piece and electrified wire, guide sleeve cover outer puncture needle it
Outside, simultaneously balanced configuration within magnetostriction piece insertion guide sleeve, electrified wire is located at magnetostriction and turned on guide sleeve, and energization is led
Line is connected with magnetostriction piece, is provided and is worn in the voltage difference control that different voltages are produced to magnetostriction piece by electrified wire
The deviation angle of pricker.
The present invention, by the propulsion of puncture needle in pushing ram control, is led to by being inserted in puncture needle in one in outer puncture needle
Guide sleeve is crossed pushing ram be oriented to so that the direction of propulsion of internal puncture needle, which is controlled, realizes the adjustable puncture in direction
Needle construction.Guide sleeve provides different voltages to the magnetostriction piece of balanced configuration by electrified wire and produces voltage difference, makes two
Individual magnetostriction piece produces different telescopic effects to control guide sleeve to produce the propulsion side of puncture needle in deviation angle control
To.The adjustable puncture needle structure in direction that the present invention is provided is simple in construction, and cost is low, easy to operate, and guiding accuracy is high, overcomes
Existing puncture needle and its auxiliary location structure deficiency that radial orientation is turned to during probeing into.
According to another embodiment of the invention, guide sleeve is elastomeric material, and it is piezoceramic material that it is internal.
According to another embodiment of the invention, puncture needle structure further comprises some spring cards；Spring card
Fixation is evenly arranged on outer puncture needle inwall, and equidistantly.
According to another embodiment of the invention, interior puncture needle rear end is provided with the breach for being used for coordinating spring card.
According to another embodiment of the invention, outer puncture needle is connected with guide sleeve by being connected sealing shroud, is connected close
Big envelope is semicircular structure, and outer puncture needle outer surface is correspondingly provided with semi-circular recesses.
According to another embodiment of the invention, interior puncture needle is arranged inside outer puncture needle, interior puncture needle diameter ratio
Length is 0.15mm-0.2mm under the outer small 0.02mm-0.05mm of puncture needle diameter, spring card nature.
According to another embodiment of the invention, guide sleeve further comprises for increasing the lightweight steel wire of stiffness.
According to another embodiment of the invention, lightweight steel wire and magnetostriction piece are two, are embedded in mangneto and stretch
Contracting turns to balanced configuration on guide sleeve.
According to another embodiment of the invention, electrified wire is two, and two magnetostriction pieces are controlled respectively.
According to another embodiment of the invention, magnetostriction piece is produced different inclined by the voltage difference of electrified wire
To angle, voltage difference is calculated by Piezoelectric Ceramic curve and obtained.
Compared with prior art, the present invention possesses following beneficial effect：
1st, produced using the guide sleeve of flexible rubber material by the different telescopic effect of the magnetostriction piece of balanced configuration
Deviation angle be interior puncture needle provider to control is oriented to, and according to required for the electrified wire of Piezoelectric Ceramic curve two
Voltage difference, the result of calculating is accurate and can real-time control operation；
2nd, carry out blocking locking by the internal puncture needle of multiple spring cards, prevent from during probeing into meeting with interior puncture needle
Run into phenomenon sliding after the resistance generation of blood vessel, tissue, it is ensured that the security and stability of puncture process；
3rd, using lightweight steel wire support guide set, rigidity is added in one direction to guide sleeve, guide sleeve is played
Support protective effect and protect pushing ram not suffer oppression, it is to avoid secretion is obstructed when extracting, while also add making for guide sleeve
Use the life-span.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the adjustable puncture needle structure figure in magnetostriction direction of embodiment 1.；
Fig. 2 is the steering structure structure chart of embodiment 1.
Embodiment
Embodiment 1
Present embodiments provide a kind of adjustable puncture needle structure in magnetostriction direction.Fig. 1 is that the present embodiment mangneto is stretched
The adjustable puncture needle structure figure in contracting direction.As illustrated, the puncture needle structure includes：
Outer puncture needle 1；
Interior puncture needle 5, interior Puncture needle sleeve is within outer puncture needle；
Propulsive mechanism, propulsive mechanism includes pushing ram 3, and the front end of pushing ram is fixedly connected with interior puncture needle, promotes rod set
Within outer puncture needle；
Steering mechanism, as shown in Figure 1 and Figure 2, steering mechanism include guide sleeve 2, magnetostriction piece 9 and electrified wire 6, lead
Covered to set outside outer puncture needle, simultaneously balanced configuration within magnetostriction piece insertion guide sleeve, electrified wire is located at magnetostriction
Turn on guide sleeve, electrified wire is connected with magnetostriction piece, different voltages are provided by electrified wire to magnetostriction piece
The deviation angle of puncture needle in the voltage difference control of generation.
The present embodiment, by the propulsion of puncture needle in pushing ram control, passes through guide sleeve by setting puncture needle in one
Pushing ram be oriented to and realizes the adjustable puncture needle structure in direction so as to which the direction of propulsion of internal puncture needle is controlled.Lead
Magnetostriction piece to set by electrified wire to balanced configuration provides different voltages, produces two magnetostriction pieces different
Telescopic effect produce displacement difference so as to control guide sleeve produce deviation angle control in puncture needle direction of propulsion.
Outer puncture needle is connected with guide sleeve by being connected sealing shroud 7, and connection sealing shroud is outside semicircular structure, outer puncture needle
Surface is correspondingly provided with semi-circular recesses.Outer puncture needle is tightly connected with guide sleeve by being connected sealing shroud, strengthens the close of puncture needle
Sealing property and structural stability, prevent from causing the leakage of secretion when extracting secretion.Guide sleeve is that rubber is soft in the present embodiment
Property material, it is piezoceramic material that it is internal.
In the present embodiment, guide sleeve further comprises for increasing the lightweight steel wire 8 of stiffness.The present embodiment uses lightweight steel
Silk support guide set, adds rigidity, guide sleeve, which is played a supporting role in protection, and protected pushes away in one direction to guide sleeve
Enter bar not suffer oppression, it is to avoid the extraction of secretion is obstructed, while adding the service life of guide sleeve.
The present embodiment puncture needle structure further comprises some spring cards 4；Spring card fixation is in outer puncture needle inwall
On, and be equidistantly evenly arranged.Spring card is used to blocking and locking interior puncture needle, prevents in interior puncture needle during probeing into
Suffer from phenomenon sliding after the resistance generation of blood vessel, tissue, it is ensured that the security and stability of puncture process, it is corresponding interior
Puncture needle rear end is provided with the breach for being used for coordinating spring card.
Interior puncture needle is arranged inside outer puncture needle, interior puncture needle diameter than the outer small 0.02mm-0.05mm of puncture needle diameter,
Length is 0.15mm-0.2mm under spring card nature.
Lightweight steel wire and magnetostriction piece are two in the present embodiment, are embedded in magnetostriction and turn on guide sleeve symmetrically
Configuration.Corresponding electrified wire is also two, and two magnetostriction pieces are controlled respectively.The magnetostrictor of balanced configuration is given respectively
Part is subject to different voltages, will obtain symmetrical two different displacements, and displacement difference will produce one partially on the plane of symmetry
Gyration, so as to control the deviation angle of biopsy needle guide.
The voltage that magnetostriction piece needs the displacement produced to be provided with electrified wire is calculated by Piezoelectric Ceramic curve
Obtain.
The voltage of electrified wire is with basic lagging characteristics relational expression with magnetostriction piece displacement model：
In formula：umaxRepresent the maximum drive voltage of magnetostrictive device, u0The transform voltages value of driving voltage is represented,
lmaxRepresent driver relative to the maximal tensility of free state, l0Represent driving voltage turning point at, driver relative to
The elongation of free state, S '+, S '-The lagging characteristics curve of positive, reverse displacement measured, S are represented respectively+, S-Difference table
Show magnetostrictive device driving voltage by u0Start positive, heterodromous voltage-micro-displacement relation, Δ u represents driving voltage
Relative to the variable quantity of transform voltages value.
The present embodiment puncture needle structure is divided into two parts in use, puncture is acted, and is carried out first by outer puncture needle
It is common to puncture, when occurring big blood vessel, tissue sliding in puncture path, by magnetostriction piece through electrified wire
It is subject to different electricity, the magnetostriction piece of two symmetry directions is produced different displacements, be oriented to so that magnetostriction is turned to
Set produces a deflection angle, and interior puncture needle proceeds secondary puncture, secondary puncture in the presence of interior puncture needle pushing ram
During, set and be spaced equal between multiple spring cards, each spring card, spring card is internal by its elastic deformation force
Puncture needle realizes locking function.
According to Fig. 1 and Fig. 2, the structure realizes puncture needle radially steering by the magnetostriction piece of balanced configuration, and
Realize that magnetostriction turns to guide sleeve in common puncture process using with the support of the lightweight steel wire of magnetostriction piece orthogonal configuration
Normally probe into.
Although the present invention is disclosed above with preferred embodiment, the scope that the present invention is implemented is not limited to.Any
The those of ordinary skill in field, it is when a little improvement can be made, i.e., every according to this hair in the invention scope for not departing from the present invention
Bright done equal improvement, should be the scope of the present invention and is covered.
Claims (10)
1. a kind of adjustable puncture needle structure in magnetostriction direction, it is characterised in that the puncture needle structure includes：
Outer puncture needle；
Interior puncture needle, the interior Puncture needle sleeve is within the outer puncture needle；
Propulsive mechanism, the propulsive mechanism includes pushing ram, and the front end of the pushing ram is fixedly connected with the interior puncture needle, pushed away
Enter rod set within the outer puncture needle；
Steering mechanism, the steering mechanism includes guide sleeve, magnetostriction piece and electrified wire, and the guide sleeve is enclosed on described outer
Outside puncture needle, the magnetostriction piece is embedded within the guide sleeve and balanced configuration, and the electrified wire is located at the magnetic
Cause on flexible steering guide sleeve, the electrified wire is connected with the magnetostriction piece, and the magnetic is given by the electrified wire
Stretchable sheet is caused to provide the deviation angle for the voltage difference control interior puncture needle that different voltages are produced.
2. puncture needle structure as claimed in claim 1, it is characterised in that the guide sleeve is elastomeric material, it is internal for pressure
Electroceramics material.
3. puncture needle structure as claimed in claim 1, it is characterised in that the puncture needle structure further comprises some springs
Card；The spring card is fixed on the outer puncture needle inwall, and is equidistantly evenly arranged.
4. puncture needle structure as claimed in claim 3, it is characterised in that the interior puncture needle rear end, which is provided with, to be used to coordinate described
The breach of spring card.
5. puncture needle structure as claimed in claim 1, it is characterised in that the outer puncture needle is with the guide sleeve by being connected
Sealing shroud is connected, and the connection sealing shroud is semicircular structure, and the outer puncture needle outer surface is correspondingly provided with semi-circular recesses.
6. puncture needle structure as claimed in claim 1, it is characterised in that the interior puncture needle is arranged in the outer puncture needle
Portion, the interior puncture needle diameter is long under the spring card nature than the outer small 0.02mm-0.05mm of puncture needle diameter
Spend for 0.15mm-0.2mm.
7. puncture needle structure as claimed in claim 1, it is characterised in that the guide sleeve further comprises being used to increase stiffness
Lightweight steel wire.
8. puncture needle structure as claimed in claim 1, it is characterised in that the lightweight steel wire is with the magnetostriction piece
Two, it is embedded in the magnetostriction and turns to balanced configuration on guide sleeve.
9. puncture needle structure as claimed in claim 1, it is characterised in that the electrified wire is two, and two are controlled respectively
The magnetostriction piece.
10. puncture needle structure as claimed in claim 1, it is characterised in that the magnetostriction piece passes through the electrified wire
Voltage difference produce different deviation angles, the voltage difference is calculated by Piezoelectric Ceramic curve and obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710310406.3A CN107049433B (en) | 2017-05-05 | 2017-05-05 | Magnetostrictive direction adjustable puncture needle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710310406.3A CN107049433B (en) | 2017-05-05 | 2017-05-05 | Magnetostrictive direction adjustable puncture needle structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107049433A true CN107049433A (en) | 2017-08-18 |
| CN107049433B CN107049433B (en) | 2023-03-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710310406.3A Active CN107049433B (en) | 2017-05-05 | 2017-05-05 | Magnetostrictive direction adjustable puncture needle structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111938788A (en) * | 2020-08-25 | 2020-11-17 | 哈尔滨医科大学 | Interatrial septum puncture assembly |
| CN113081252A (en) * | 2021-05-17 | 2021-07-09 | 广西医科大学 | Mobile radio frequency ablation device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6364221B1 (en) * | 1999-09-29 | 2002-04-02 | Siemens Automotive Corporation | Electronic fuel injector actuated by magnetostrictive transduction |
| US20070088376A1 (en) * | 2005-10-18 | 2007-04-19 | Jaime Zacharias | Precision surgical system |
| CN101495175A (en) * | 2006-05-22 | 2009-07-29 | 帝国生物医学设备公司 | Method and device for enhanced blood flow |
| CN102579088A (en) * | 2012-01-13 | 2012-07-18 | 天津科技大学 | Three-dimensional navigation controllable magnetic field device on basis of permanent magnet array |
-
2017
- 2017-05-05 CN CN201710310406.3A patent/CN107049433B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6364221B1 (en) * | 1999-09-29 | 2002-04-02 | Siemens Automotive Corporation | Electronic fuel injector actuated by magnetostrictive transduction |
| US20070088376A1 (en) * | 2005-10-18 | 2007-04-19 | Jaime Zacharias | Precision surgical system |
| CN101495175A (en) * | 2006-05-22 | 2009-07-29 | 帝国生物医学设备公司 | Method and device for enhanced blood flow |
| CN102579088A (en) * | 2012-01-13 | 2012-07-18 | 天津科技大学 | Three-dimensional navigation controllable magnetic field device on basis of permanent magnet array |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111938788A (en) * | 2020-08-25 | 2020-11-17 | 哈尔滨医科大学 | Interatrial septum puncture assembly |
| CN113081252A (en) * | 2021-05-17 | 2021-07-09 | 广西医科大学 | Mobile radio frequency ablation device |
| CN113081252B (en) * | 2021-05-17 | 2022-11-08 | 广西医科大学 | Mobile radio frequency ablation device |
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| Publication number | Publication date |
|---|---|
| CN107049433B (en) | 2023-03-24 |
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