CN106510813A - No-knife puncture needle capable of deforming locally - Google Patents
No-knife puncture needle capable of deforming locally Download PDFInfo
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- CN106510813A CN106510813A CN201611125664.6A CN201611125664A CN106510813A CN 106510813 A CN106510813 A CN 106510813A CN 201611125664 A CN201611125664 A CN 201611125664A CN 106510813 A CN106510813 A CN 106510813A
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- puncture needle
- distal end
- deformation
- fixed pole
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- 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
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- 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
-
- 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
- A61B17/3421—Cannulas
-
- 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
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a no-knife puncture needle capable of deforming locally. The puncture needle comprises a near-end hand shank, a far-end peak and a rigid fixed rod which extends towards the near-end from the peak and is connected to the hand shank, and the rigid fixed rod includes a central axis. The no-knife puncture needle further comprises a rigid movable rod and a deforming ring, wherein the rigid movable rod can move relative to the rigid fixed rod, the deforming ring includes an annular wall and a central hole, the far-end of the annular wall is fixed together with the rigid fixed rod, and smooth transition is achieved between the deforming ring and the rigid fixed rod. The deforming ring has flexibility and elasticity, the material of the deforming ring is a half-rigid material or a soft material, and through the deforming ring, fit clearance does not exist between the puncture needle and a thimble assembly and smooth transition is achieved between the puncture needle and the thimble assembly.
Description
Technical field
A kind of the present invention relates to Minimally Invasive Surgery apparatus, more particularly to puncture needle structure.
Background technology
Perforator is in a kind of Minimally Invasive Surgery (especially hard tube endoscope-assistant surgery), for setting up the artificial channel into body cavity
Operating theater instruments.Perforator generally comprises thimble assembly and puncture needle two parts.The mode that generally uses of its clinic is：First suffering from
Cut osculum on person's skin, then puncture needle is run through into thimble assembly, the distal end of puncture needle exceedes the distal end of thimble assembly, then together
Body cavity is entered via body wall is penetrated at skin openings.
During penetrating body wall, operative doctor grips perforator and applies larger puncture procedure power, for overcoming thorn
Resistance that is broken and cutting open tissue, and the resistance of extruding and the tissue that swells.The distal end of puncture needle generally comprises sharp blade, has
Help reduce the power for puncturing and cutting open tissue.And resistance described in penetrating moment of body wall suddenly disappears, doctor has little time stopping and applies
Power or due to effect of inertia, the blade may accidental injury patient's interior tissues.Therefore puncture needle generally comprises alternative
Axial movement protective case and automatic locking apparatus, referred to as automatic protection puncture needle.The protection puncture needle has locking
State and release conditions.In the release conditions when, the protective case can proximally be return by distal end and expose the blade；
In guard mode when, the protective case can not be proximally return by distal end, and the blade is coated by protective case.And, wear
Thoroughly the moment of body wall, almost trigger the automatic locking apparatus simultaneously, so that rapidly automatically guarantor is switched to from release conditions
Shield state.The moment of body wall penetrated, the protective case almost simultaneously, is rapidly proximally moved to distal end cladding blade simultaneously
Locking, causes accidental injury so as to prevent blade from exposing.Even if however, protective case effective protection effect under, because of doctor Jing
Test shortcoming, or the puncture procedure power applied because of doctor is excessive, or because doctor stops applying puncture procedure power in time, or because suffering from
The factors such as person's state of an illness difference, are still susceptible to the situation of accidental injury internal.
In order to reduce the risk for damaging internal, when in clinical practice, doctor's gripping perforator carries out puncture procedure, no
It is that to piercing in vivo, but small range is rotated back and forth on one side to being pierced in vivo in the way of simple linear motion.It is this
The piercing method of formula is rotated back and forth, this is conducive to tearing and swelling muscular tissue, while being conducive to control to be pierced into speed and reduction
Aforementioned effect of inertia.But this piercing method for rotating back and forth formula, the blade of the protection puncture needle is with rotating back and forth simultaneously
Cutting muscular tissue, causes wound irregular, so as to additionally increase the damage for patient, and increased incisional hernia complication
Probability of happening.
Research shows, is conducive to reducing for patient's using the puncture needle (hereinafter referred to as without knife puncture needle) without blade
Damage.As it was noted above, when carrying out abdomen wall puncture using protection puncture needle, its blade pierces and cutting muscle and tissue；And make
With it is described carry out abdomen wall puncture without knife puncture needle when, as without sharp blade, its tip punctures muscle and tissue, and tears
Separating muscle fiber and wound is swollen until puncture needle and thimble assembly are integrally through stomach wall.It can be seen that, it is described without knife puncture needle phase
For protection puncture needle, the cutting damage for muscular tissue is reduced, is conducive to post-operative recovery, be conducive to reducing incisional hernia simultaneously
Send out the probability of disease.Generally draw accordingly using without knife puncture needle ratio using there is knife (protection) puncture needle less for patient damages
Conclusion.But abdomen wall puncture is carried out using described without knife puncture needle, which punctures, and needle force is typically larger than described to have knife (protection) to puncture
The puncture force of pin, so being more difficult to control, increased the risk of injured patient internal and tissue on the contrary.
In addition to aforementioned risk, when running through thimble assembly due to puncture needle, distal end and the described sleeve pipe group of the puncture needle
There is fit clearance in the distal end of part, and during puncturing patient's body wall, in some cases the easy quilt of the epidermis of patient or tissue
It is involved in the fit clearance, causes penetration Resistance to increase extremely, so as to increases the risk of injured patient internal and tissue.
Be discussed in detail in United States Patent (USP) US5824002 patient's epidermis be involved between puncture needle and sleeve pipe the defect of fit clearance and its
Risk, and disclose the perforator of a kind of puncture needle and boot proximal end good transition.
The present invention proposes the mechanism for realizing puncture needle and thimble assembly distal end smooth transition of more simple economy.
The content of the invention
Therefore, it is an object of the present invention to provide one kind is without knife puncture needle, the puncture needle distal deformable, and puncture
Needle construction is compact, and part manufactures economy, and assembling product is convenient and swift.
In one aspect of the invention, it is a kind of to include proximal handle and distal end summit without knife puncture needle, and by the top
The rigid fixed pole that point is proximally extended and is connected with the handle, the rigid fixed pole include central axis.It is described to puncture without knife
Pin also includes rigid lever and deformation circle.The rigid lever can be moved relative to rigid fixed pole.The deformation circle is comprising annular
Wall and centre bore, and the distal end of the annular wall is fixed together with the rigid fixed pole, and the deformation circle and the rigidity
Smooth transition between fixed pole.With flexible and elasticity, its material is semi-rigid material or flexible material to the deformation circle.
In a kind of embodiment, the proximal handle includes matrix and removable cover, and wherein described matrix is connected with rigid fixed pole
It is connected together；And the removable cover is linked together with rigid lever；And the removable cover and rigid lever can together relative to
Rigid fixed pole movement.In another embodiment, the proximal handle includes matrix and fixed lid, the rigid lever not with institute
State proximal handle connection.
In a kind of embodiment, do not fix between the near-end of the deformation circle and the rigid lever fixation, and it is another kind of
In embodiment, the near-end of the deformation circle is fixed together with the rigid lever.
It is a further object to provide a kind of perforator, the perforator includes puncture needle and thimble assembly, institute
State it is very close to each other at the distal end cooperation of puncture needle and thimble assembly, and when the puncture needle runs through described sleeve pipe component Jing together
When being punctured by the skin incisions of point of puncture, the maximum gauge of the puncture needle distal is remote more than or equal to described sleeve pipe component
It is very close to each other and transition is smooth at the distal end cooperation of the internal diameter at end, i.e. puncture needle and thimble assembly, so as to reduce puncture force.
In another aspect of the present invention, a kind of perforator includes thimble assembly and aforementioned arbitrary puncture needle, described sleeve pipe
Component includes gas-tight silo and the hollow sleeve being attached thereto, and the distal end of the hollow sleeve is comprising the lip with endoporus.It is a kind of real
Apply in scheme, the maximum outside diameter size of the deformation circle is more than the endoporus aperture size of the lip.The perforator includes two kinds
State：State one, the rigid lever are moved proximally to by distal end, between the distal end of the rigid lever and rigid fixed pole
Annular wall forms cavity, and the collapsible deformation of the deformation circle makes its maximum outside diameter be smaller in size than the endoporus aperture equal to the lip
Size.State two, the rigid lever are moved and filled up by proximates aforementioned cavity, and the not collapsible change of the deformation circle
Shape, the then deformation enclose endoporus aperture size of the maximum outside diameter size more than the lip so that the puncture needle and thimble assembly
Without fit clearance and transition is smooth.
In an additional aspect of the present invention, a kind of perforator includes thimble assembly and aforementioned arbitrary puncture needle, described sleeve pipe
Component includes gas-tight silo and the hollow sleeve being attached thereto, and the distal end of the hollow sleeve is comprising the lip with endoporus.It is a kind of real
Apply in scheme, the maximum outside diameter of the deformation circle is smaller in size than the endoporus aperture size equal to the lip.The perforator is included
Two states：State one, the annular wall between the distal end of the rigid lever and rigid fixed pole form cavity.State two, state
Two, the rigid lever is moved and filled up by proximate aforementioned cavity, and the annular wall is extruded swells laterally so that
The maximum outside diameter size of the deformation circle is more than described endoporus aperture size so that the puncture needle and thimble assembly are not matched somebody with somebody
Close gap and transition is smooth.
Description of the drawings
In order to more fully understand the essence of the present invention, it is described in detail below in conjunction with accompanying drawing, wherein：
Fig. 1 is the axonometric chart for puncturing device assembly；
Fig. 2 is the axonometric chart of the puncture needle of this one embodiment；
Fig. 3 is the exploded view of the solid of puncture needle shown in Fig. 2；
Fig. 4 is the detail drawing of the rigid fixed pole of puncture needle shown in Fig. 3；
Fig. 4 A are the 4A-4A cross-sectional views of Fig. 4；
Fig. 4 B are the 4B-4B cross-sectional views of Fig. 4；
Fig. 4 C are the 4C-4C cross-sectional views of Fig. 4；
Fig. 5 is the sectional view of the deformation circle of puncture needle shown in Fig. 3；
Fig. 6 is the sectional view of the handle chassis of puncture needle shown in Fig. 3；
Fig. 7 is the side projection view of puncture needle shown in Fig. 3；
Fig. 8 is the 8-8 sectional views of puncture needle shown in Fig. 7；
Fig. 9 is the side projection view of perforator shown in Fig. 1；
Figure 10 is the enlarged partial sectional view of the distal end of perforator shown in Fig. 9；
Figure 11 be perforator shown in Fig. 9 be in puncture state when side projection figure；
Figure 12 is the enlarged partial sectional view of the distal end of perforator shown in Figure 11；
Figure 13 is the axonometric chart exploded view of second embodiment puncture needle of the present invention；
Figure 14 is the sectional view of the deformation circle of puncture needle shown in Figure 13；
Figure 15 is the side projection view of puncture needle shown in Figure 13；
Figure 16 is the 16-16 sectional views of puncture needle shown in Figure 15；
Figure 17 is the side projection view threaded a needle shown in Figure 15 when coordinating with thimble assembly；
Figure 18 is the enlarged partial sectional view of the distal end of perforator shown in Figure 17；
Figure 19 be perforator shown in Figure 17 be in puncture state when side projection view；
Figure 20 is the enlarged partial sectional view of the distal end of perforator shown in Figure 19；
Figure 21 is the side projection view of the perforator of another embodiment of the invention；
Figure 22 is the enlarged partial sectional view of the distal end of perforator shown in Figure 21；
Figure 23 be shown in Figure 21 shown in perforator be in puncture state when side projection view；
Figure 24 is the enlarged partial sectional view of the distal end of perforator shown in Figure 23.
In all of view, identical label represents the part or part of equivalent.
Specific embodiment
Embodiment of the present invention is disclosed herein is, it should be understood, however, that disclosed embodiment is only of the invention
Example, the present invention can be realized by different modes.Therefore, this disclosure is not to be construed as restricted, and
It is the basis only as claim, and as teaching those skilled in the art how using basis of the invention.
Fig. 1-2 depicts the overall structure of perforator.A kind of typical perforator includes thimble assembly 100 and puncture needle 200.
Thimble assembly 100 includes gas-tight silo 110 and breather valve 120.The gas-tight silo 110 comprising nearly 111 (not shown) of sleeve pipe top surface and
113 (not shown) of central through hole, usual zero sealing (also known as automatic-sealed) and diaphragm seal (also known as instrument seal) are from distal end near
End is sequentially arranged in gas-tight silo 110.Zero sealing is generally not provided the sealing for insertion instrument, and when apparatus is removed
It is automatically switched off and is formed sealing.The diaphragm seal banding apparatus forms sealing when apparatus is inserted.Described sleeve pipe 130 is included and is opened
The distal end 132 put and the hollow pipe 133 of UNICOM's gas-tight silo 110.The distal end 132 includes inclined lip 131.The puncture needle
200 can be mainly classified into handle portion 202, bar part 204 and distal portions 206.The handle portion includes handle top surface 291
With handle bottom surface 213.
With reference to Fig. 1-2, the puncture needle 200 runs through thimble assembly 100, the nearly sleeve pipe top surface 111 and handle bottom surface 213
Contact.It is front 107 to define 100 side containing breather valve 120 of described sleeve pipe component, and its opposite face is the back side 108, and which two
Side is side 109.Position relationship when being matched with thimble assembly 100 according to puncture needle 200, is defined 207 before puncture needle, after
Face 208 and left and right side 209.When puncture action is carried out, doctor's finger holds gas-tight silo 110, and palm is close to handle top surface
291 and below 208, lasting applying puncture procedure power makes which penetrate patient's body wall.Once completely penetrating through body wall, puncture needle is taken
Walk, leave the passage that thimble assembly passes in and out body cavity as apparatus.For convenience of stating, a side of follow-up all Proximity operation persons is defined as
Near-end, and distal end is defined as away from a side of operator, the central axis for defining puncture needle bar part 204 (does not show for axis 201
Go out), the direction of follow-up all almost parallel axis 201 is referred to as axially, and the direction of substantially vertical axis 201 is referred to as laterally.
Fig. 3-8 illustrate in detail the structure composition of the one embodiment without knife puncture needle 200 of the present invention and assembly relation.
It is with reference first to Fig. 3, described to include rigid fixed pole 210, deformation circle 230, rigid lever 250,270 He of pedestal without knife puncture needle 200
Handle case 290.
With reference to Fig. 3, Fig. 4 and Fig. 7, the rigid fixed pole 210 includes near-end cylinder 214 and puncturing head 218 and therebetween
Connecting shaft 216.The connecting shaft 216 includes proximal shaft 216a and distal shaft 216c, and the two is coaxial, i.e., with common axis
211.Diameter of the diameter of the proximal shaft 216a less than the distal shaft 216c, the two is crossed to form shaft shoulder 216b.It is described to wear
Tartar 218 includes matrix 224 and top 229 and extends to the beveled distal end 226 on top from matrix.Outer curved surface 225 and outer
Portion's curved surface 227 is axially extending to matrix 224 from top 229, and the outer curved surface 225 and outer curved surface 227 extend laterally intersecting
Formed and separate sword 228.In this example, 227 intersection rounding off of the outer curved surface 225 and outer curved surface, then form
It is blunt to separate sword 228.But the outer curved surface 225 and 227 intersection of outer curved surface can also form sharp separation sword.
In this example, the outer curved surface 225 and outer curved surface 227 are smooth Nonlinear Curveds, i.e., the beveled distal end 226 be by
Two Nonlinear Curved compositions.But those skilled in the art is it is readily conceivable that using 2 or multiple linear planes be also
Can with.Primary Reference Fig. 4, Fig. 4 A, Fig. 4 B and Fig. 4 C, first crosses axis 211 and separates just the outer curved surface 225 and outside
The longitudinal profile 212 of curved surface 227, then substantially vertical axis 211 makees arbitrary cross section (such as cross section 4A, 4B, 4C).The horizontal stroke
By distal end proximally, its width and thickness gradually increase in section (such as cross section 4A, 4B, 4C)；And with axial section 212
The cross section is divided into into left and right two parts for boundary, with reference to Fig. 4 A, Fig. 4 B and Fig. 4 C, then the thickness of left-half is less than right-hand part
The thickness for dividing.Described matrix 224 also includes near-end mating surface 223 and annular muscle 221 and column part therebetween 222, described
Annular muscle 221 includes planar annular 221a and annular slope 221b, the near-end mating surface 223, column part 222 and annular flat
Face 221a is collectively forming annular groove 220.The near-end cylinder 214 stops the buckle of face 215 and 2 near symmetricals comprising near-end
213.The buckle 213 includes hook 213a and cantilever 213b.
With reference to Fig. 5, the deformation circle 230 include flexible proximal end 232 and flexible distal 238 and its between annular wall 234.
The deformation circle 230 also includes the first endoporus 231, the second endoporus 235 and the 3rd endoporus 239.One end of first endoporus 231
Through flexible proximal end 232, and its other end is connected with the second endoporus 235 via interior annular groove 233.3rd endoporus 239
One end run through flexible distal 238, and its other end is connected with the second endoporus 235 via interior annular groove 237.In the annular
Groove 233 includes side wall 233a, side wall 233c and top surface 233b.The interior annular groove 237 includes side wall 237a, side wall 237c
With arc top surface 237b.And the annular wall 234 has the arc convex of ring-type in the arc top surface 237b corresponding sections
236。
With reference to Fig. 3, the rigid lever 250 includes proximal rim 252 and Active remote 258 and by proximal extension to distal end
Hollow bar 256, the hollow bar 256 is comprising proximally penetrating to the centre bore 255 of distal end.The centre bore 255 includes the
The diameter of one centre bore 255a and the second centre bore 255c, wherein described first centre bore 255a is less than the second centre bore 255c's
Diameter, the two intersection form step 255b.In the Active remote 258, cannelure 257 is by annular muscle 259 and hollow bar 256
Separate.The proximal rim 252 includes the through hole 254 of proximal end face 251 and distal face 253 and 2 near symmetricals.
With reference to Fig. 3 and Fig. 6, the pedestal 270 includes proximal end face 271 and distal face 279, and proximally extends to distal end
Matrix 272.First through hole 274, the second through hole 275, third through-hole 276 and fourth hole 277 it is substantially coaxial, UNICOM is simultaneously successively
Penetrate matrix 272.Wherein first through hole 274 is identical with the internal diameter of third through-hole 276, and the internal diameter of the second through hole 275 is less than first
The internal diameter of through hole 274, and the internal diameter of fourth hole 277 is more than the internal diameter of the third through-hole 276.2 substantially symmetric through holes
273 proximally face 271 start to penetrate matrix 272 until with 277 UNICOM of the fourth hole.Second through hole 275 is comprising near
End face 275a and distal face 275b.The pedestal 270 also includes 2 orienting pins 278 from distal face 279 to distal projection.
With reference to Fig. 3 and Fig. 8, the interior storehouse 293 that the handle case 290 includes handle top surface 291 and limited by housing 292.2
The fixed column 294 of near symmetrical is from 292 bottom of housing to remote extension.The fixed column 294 includes cylindrical wall 295, and distal end is stopped
Face 296 and the lock 297 of two near symmetricals.The lock 297 includes latch hook 298 and cantilever 299.
With reference to Fig. 7 and Fig. 8, deformation circle 230 is installed to the distal ends of the rigid fixed pole 210, wherein the column part 222
Match with third through-hole 239, the distal shaft 216c is matched with the second through hole 235；Annular muscle 221 is embedded in the annular indent
In groove 237, and the flexible distal 238 is adjacent to the near-end mating surface 223, and the side wall 237c and planar annular 221a
It is adjacent to, together with rigid fixed pole 210 is tightly secured to deformation circle 230.Wherein annular slope 221b and arc top surface
237b is not contacted, i.e. preset clearance therebetween.Second centre bore 255c of rigid lever 250 is matched with distal shaft 216c, institute
State cannelure 257 to match with first endoporus 231, and the annular muscle 259 is embedded in the interior annular groove 233, from
And rigid lever 250 and deformation circle 230 link together.
With reference to Fig. 7 and Fig. 8, pedestal 270 is installed in the rigid fixed pole 210, wherein proximal shaft 216a and the second through hole
276 matchings, near-end stop the contact of face 215 distal face 275b, and hook 213a is contacted with proximal end face 275a, so as to by the rigid fixed pole
210 and pedestal 270 be fixed together.Handle case 290 is installed in rigid lever 250, and wherein 2 fixed columns 294 pass through two
Through hole 273, lock 297 are matched with through hole 254, and wherein the contact of face 296 proximal end face 251 is stopped in distal end, and latch hook 298 contacts distal face
253, so as to the handle case 290 and the rigid lever 250 are fixed together.Thrust spring 240 is arranged on rigid fixed pole
On 210 proximal shaft 216a, between step 255b and shaft shoulder 216b and in compressive state.The thrust spring 240 is promoted
Rigid lever 250 is moved proximally to by distal end, at the same the handle case 290 also therewith by distal end move proximally to so as to pedestal
270 separate.
Rigid fixed pole 210, rigid lever 250 can be made up of rigidity plastics such as Merlon, nylon, it is also possible to by metal material
Material is made.Deformation circle 230 can be by polrvinyl chloride, thermoplastic elastomer (TPE) (such as polyurethane elastomer, heat cure rubber), thermosetting
The semi-rigid materials such as elastomer (such as silica gel, natural rubber) or soft material are made.Deformation circle described in this example 230 and rigidity
The connection of fixed pole 210 (or rigid lever 250) make use of deformation to enclose 230 elastic deformation characteristic, realize rigid projections muscle with it is soft
The interference fit of property inner groovy.But the known machine such as glue bonding, riveting, ultrasonic bonding, threaded connection can also be adopted
Tool method of attachment.The company of the connection of rigid fixed pole 210 and pedestal 270, rigid lever 250 and handle case 290 described in this example
Connect, employ elastic buckles connection, but the known machine such as glue bonding, riveting, ultrasonic bonding, threaded connection can also be adopted
Tool method of attachment.
The puncture needle 200 includes two states.State one, referred to as off working state, are alternatively referred to as nature in this example
State.State two, referred to as working condition, it is also possible to referred to as puncture state.
With reference to Fig. 9 and Figure 10, puncture needle 200 runs through thimble assembly 100.Off working state (naturalness), the handle
Shell 290 and rigid lever 250 are moved proximally to stroke summit by distal end under the active force of thrust spring 240.Naturalness
Under, the internal diameter of the outside dimension of the arc convex 236 more than the hollow pipe 133, and the deformation circle 230 by semi-rigid or
Flexible material is made, and preset clearance between the annular slope 221b and arc top surface 237b, therefore the arc convex 236
The internal diameter of the hollow pipe 133 can be less than or equal to axle center radial contraction to external diameter.The puncture needle 200 smoothly can be inserted
Enter described sleeve pipe component 100 or from wherein extracting.
With reference to Figure 11 and Figure 12, puncture needle 200 runs through thimble assembly 100, during working condition (puncture state), operates doctor
Finger hold gas-tight silo 110 and palm is close to handle top surface 291, force handle case 290 and rigid lever 250 from near-end to remote
End movement, while the distal end of the rigid lever 250 is pushed and compresses the deformation circle 230, the annular slope 221b and arc
Gap between shape top surface 237b reduces, and the arc convex 236 is extruded into the lip of protrusion and described sleeve pipe component 100
Outside 131, and the external diameter of the arc convex 236 is more than the internal diameter of the hollow pipe 133.Due to annular slope 221b and arc
Gap between top surface 237b is filled or very little, thus raised 236 cannot radial contraction, then in puncture needle and sleeve pipe group
Changeover portion at the lip of part, the external diameter of the puncture needle are more than the internal diameter of described sleeve pipe component.Therefore grip puncture needle 200 to run through
Thimble assembly 100 when puncturing via point of puncture, is not in that skin or tissue near the wound described in background is involved in and wears
Pricker and the situation in thimble assembly gap, and its transition is more smooth, contributes to reducing puncture force.
Figure 13-16 depicts second embodiment puncture needle 300 of the present invention.The numeral mark of geometry in Figure 13-16
Number number designation corresponding with Fig. 3-8 is identical, represents that example two is basic etc. with the structure of same numbers label in example one
With.Primary Reference Figure 13 first, it is described without knife puncture needle 300 comprising rigid fixed pole 310, deformation circle 330, rigid lever 350,
Pedestal 270 and handle case 290.
With reference to Figure 13, the rigid fixed pole 310 includes near-end cylinder 214 and puncturing head 318 and connecting shaft therebetween
216.The connecting shaft 216 includes proximal shaft 216a and distal shaft 216c, and the two is coaxial, i.e., with common axis 211.Institute
The diameter of the diameter less than the distal shaft 216c of proximal shaft 216a is stated, the two is crossed to form shaft shoulder 216b.The puncturing head 318
The beveled distal end 326 on top is extended to comprising matrix 324 and top 329 and from matrix.Described matrix 324 coordinates comprising near-end
Face 322, institute's beveled distal end 326 are overall in cone.The rigid lever 350 include proximal rim 252 and Active remote 358 and
By the hollow bar 356 of proximal extension to distal end, the hollow bar 356 is included and is proximally penetrated to the centre bore 355 of distal end.It is described
Centre bore 355 includes the first centre bore 355a and the second centre bore 355c, and the diameter of wherein described first centre bore 355a is less than
The diameter of the second centre bore 355c, the two intersection form step 355b.The proximal rim 252 includes proximal end face 251 and remote
The through hole 254 of end face 253 and 2 near symmetricals.
With reference to Figure 13 and Figure 14, with reference to Fig. 5, the deformation circle 330 include flexible proximal end 332 and flexible distal 338 and its
Between annular wall 334.The deformation circle 330 also includes the first endoporus 335 and the second endoporus 337.First endoporus 335
Through flexible proximal end 332, second endoporus 337 through flexible distal 338, the internal diameter of first endoporus 335 is more than institute
The internal diameter of the second endoporus 337 is stated, the two is crossed to form step 336.Outside the distal end of the annular wall 334 is comprising annular triangle
Raised 339, the outer lug 339 is included and faces 339a and inclined-plane 339b directly.
With reference to Figure 15 and Figure 16, deformation circle 330 is installed to the distal end of the rigid fixed pole 310, wherein described distal shaft
216c is matched with the second endoporus 337, and the distal face 322 and the flexible distal 338 bond together, so as to by rigid fixed pole
310 together with deforming circle 330 and being tightly secured to.Second centre bore 355c of rigid lever 350 is matched with distal shaft 216c, institute
State hollow bar 356 to match with the first endoporus 335.
With reference to Figure 15 and Figure 16, pedestal 270 is installed in the rigid fixed pole 310, and wherein proximal shaft 216a and second leads to
Hole 276 matches, and near-end stops the contact of face 215 distal face 275b, and hook 213a is contacted with proximal end face 275a, so as to the rigidity is fixed
Bar 210 and pedestal 270 are fixed together.Handle case 290 is installed in rigid lever 350, and wherein 2 fixed columns 294 pass through two
Individual through hole 273, lock 297 are matched with through hole 254, and wherein the contact of face 296 proximal end face 251 is stopped in distal end, and latch hook 298 contacts distal end
Face 253, so as to the handle case 290 and the rigid lever 350 are fixed together.It is fixed that thrust spring 240 is arranged on rigidity
On the proximal shaft 216a of bar 310, between step 255b and shaft shoulder 216b and in compressive state.The thrust spring 240 is pushed away
Dynamic rigidity lever 350 is moved proximally to by distal end, at the same the handle case 290 also therewith by distal end move proximally to so as to base
Seat 270 is separated；And the Active remote 358 and step 336 are not contacted, i.e., the shape between the Active remote 358 and step 336
Into cavity 335a.
The puncture needle 200 includes two states.State one, referred to as off working state, are alternatively referred to as nature in this example
State.State two, referred to as working condition, it is also possible to referred to as puncture state.
With reference to Figure 17 and Figure 18, thimble assembly 400 includes gas-tight silo 110, breather valve 120 and sleeve pipe 430.Described sleeve pipe
430 hollow pipes 433 comprising open distal end 432 and UNICOM's gas-tight silo 110, the distal end 432 includes lip 431.Inoperative
State (naturalness), the puncture needle 300 run through thimble assembly 400, and the handle case 290 and rigid lever 350 are in thrust
Under the active force of spring 240, moved proximally to stroke summit by distal end.Under naturalness, the outer diameter ruler of the outer lug 339
The very little internal diameter more than the hollow pipe 433.The deformation circle 330 is made up of semi-rigid or flexible material.When puncture needle 300 is inserted
When outwards extracting in thimble assembly 400 or from inside thimble assembly 400, due between the Active remote 358 and step 336
Cavity 335a is formed, the outer lug 339 can be equal to the internal diameter of the hollow pipe 433 to axle center radial contraction to external diameter.It is described
Puncture needle 300 can smoothly insert described sleeve pipe component 400 or from wherein extracting.Working condition (puncture state), with reference to figure
19 and Figure 20, when puncture action is carried out, doctor's finger holds gas-tight silo 110 and palm is close to the handle top of nearly handle case 290
Face 291, so as to driving handle shell 290 and rigid lever 350 are moved by proximate, until the Active remote 358 and platform
Rank 336 contacts, and the cavity 335a is filled up by rigid lever 350, then the outer lug 339 is not collapsible, the outer lug 339
External diameter more than the hollow pipe 433 internal diameter and be more than or equal to lip 431 external diameter.In piercing process, due to the puncture
It is very close to each other between pin and thimble assembly, be not in skin near the wound described in background or tissue be involved in puncture needle with
The situation in thimble assembly gap, and its transition is more smooth, contributes to reducing puncture force.
Figure 21-22 depicts the 3rd embodiment puncture needle 500 of the present invention.The numeral mark of geometry in Figure 13-16
Number number designation corresponding with Figure 13-16 is identical, represents that example two is basic with the structure of same numbers label in example one
Equivalent.It is described to include rigid fixed pole 310, deformation circle 530, rigid lever 350, pedestal 270 and handle case without knife puncture needle 500
290。
Primary Reference Figure 22, the flexible rings 530 include flexible proximal end 332 and flexible distal 338 and its between annular
Wall 334.The deformation circle 330 also includes the first endoporus 335 and the second endoporus 337.First endoporus 335 through flexible near
End 332, second endoporus 337 through flexible distal 338, the internal diameter of first endoporus 335 is more than second endoporus
337 internal diameter, the two is crossed to form step 336.Deformation circle 530 is installed to the distal end of the rigid fixed pole 310, wherein described remote
End axle 216c is matched with the second endoporus 337, and the distal face 322 and the flexible distal 338 bond together, so as to incite somebody to action rigidity
Together with fixed pole 310 is tightly secured to deformation circle 530.Second centre bore 355c of rigid lever 350 and distal shaft 216c
Match somebody with somebody, the hollow bar 356 is inserted in first endoporus 335, and the Active remote 358 and step 336 are not contacted, i.e., in institute
State formation cavity 335b between Active remote 358 and step 336.And the hollow bar 356 distal end and the first endoporus 335 it is firm
Solid be fixed together.It is adhesively fixed using glue in this example, but quadric injection mould, riveting, supersonic welding can also be adopted
Connect, the known mechanical joining methods such as threaded connection.
The puncture needle 500 includes two states.State one, referred to as off working state, are alternatively referred to as nature in this example
State.State two, referred to as working condition, it is also possible to referred to as puncture state.
Off working state (naturalness), with reference to Figure 21-22, the Active remote 358 and step 336 are not contacted, that is, exist
Cavity 335b is formed between the Active remote 358 and step 336.The maximum outside diameter of 500 distal end of the puncture needle is less than described
The internal diameter of hollow pipe 433.Working condition (puncture state), with reference to Figure 23-24, the puncture needle 500 runs through thimble assembly 400,
When puncture action is carried out, doctor's finger holds gas-tight silo 110 and palm is close to the handle top surface 291 of nearly handle case 290, so as to
Driving handle shell 290 and rigid lever 350 are moved by proximate, until the Active remote 358 and step 336 are contacted.
The cavity 335b is filled up by rigid lever 350, and is in the annular wall between the Active remote 358 and step 336
334 then deform formation protuberance 339 laterally, and are deposited in the oral area of the lip 431.It is and the protuberance is not 339 collapsible, described
Internal diameter of the external diameter of outer lug 339 more than the hollow pipe 433 external diameter more than or equal to lip 431.In piercing process, due to
It is very close to each other between the puncture needle and thimble assembly, be not in that skin near the wound described in background or tissue are involved in
Puncture needle and the situation in thimble assembly gap, and its transition is more smooth, contributes to reducing puncture force.
Although embodiment one, embodiment two and handle case described in embodiment three are all activities and are connected with the rigid lever
Connect, but those skilled in the art is to be understood that the handle case can be fixed, and the rigid lever also may be used
Not to be connected with handle case, or it is not connected with handle.Although embodiment one, embodiment two and embodiment three all employ bullet
Spring, but shell fragment can also be used, or flexible restoring organ is not adopted, but the manual movement rigid lever.
Many different embodiments and the example of the present invention are had shown and described.One ordinary skill of this area
Personnel, without departing from the scope of the invention, can make adaptation to methods described and apparatus by suitably modified.
For example change the profile of rigid fixed pole distal end and deformation circle, the fixed form between change deformation circle and rigid fixed pole, change are firm
Property lever shape and mobile type of drive, itemize the material of deformation circle, or tested by finite number of time and become
Accurate dimension of shape circle etc..Several kinds of amendment schemes are referred, for a person skilled in the art, other amendment sides
Case is also what is be contemplated that.Therefore the scope of the present invention should be according to accessory claim, while being understood not to by illustrating
The particular content of the structure that book and accompanying drawing show and record, material or behavior is limited.
Claims (7)
1. one kind includes proximal handle and distal end summit without knife puncture needle, and proximally extended by the summit and with the handss
The rigid fixed pole of handle connection, the rigid fixed pole include central axis, it is characterised in that：
It is described also to include rigid lever and deformation circle without knife puncture needle；
The rigid lever can be moved relative to rigid fixed pole；
The deformation circle is comprising annular wall and centre bore, and the distal end of the annular wall is fixed together with the rigid fixed pole,
And smooth transition between the deformation circle and the rigid fixed pole；
With flexible and elasticity, its material is semi-rigid material or flexible material to the deformation circle.
2. puncture needle as claimed in claim 1, it is characterised in that the handle includes matrix and removable cover, wherein described base
Body is fixed together with rigid fixed pole, and the removable cover is fixed together with rigid lever.
3. puncture needle as claimed in claim 1, it is characterised in that the near-end of the deformation circle is fixed on the rigid lever
Together.
4. a kind of perforator, it is characterised in that comprising thimble assembly and puncture needle as claimed in claim 2, described sleeve pipe group
Part includes gas-tight silo and the hollow sleeve being attached thereto, and the distal end of the hollow sleeve is comprising the lip with endoporus, the deformation
Endoporus aperture size of the maximum outside diameter size of circle more than the lip.
5. a kind of perforator, it is characterised in that comprising thimble assembly and puncture needle as claimed in claim 3, described sleeve pipe group
Part includes gas-tight silo and the hollow sleeve being attached thereto, and the distal end of the hollow sleeve is comprising the lip with endoporus, the deformation
The maximum outside diameter of circle is smaller in size than the endoporus aperture size equal to the lip.
6. perforator as claimed in claim 4, it is characterised in that comprising two states：
State one, the rigid lever are moved proximally to by distal end, between the distal end of the rigid lever and rigid fixed pole
Annular wall forms cavity, and the collapsible deformation of the deformation circle makes its maximum outside diameter be smaller in size than the endoporus aperture equal to the lip
Size；
State two, the rigid lever are moved and filled up by proximates aforementioned cavity, and the not collapsible change of the deformation circle
Shape, the then deformation enclose endoporus aperture size of the maximum outside diameter size more than the lip so that the puncture needle and thimble assembly
Without fit clearance and transition is smooth.
7. perforator as claimed in claim 5, it is characterised in that comprising two states：
State one, the annular wall between the distal end of the rigid lever and rigid fixed pole form cavity；
State two, the rigid lever are moved and filled up by proximates aforementioned cavity, and the annular wall is extruded laterally
Protuberance so that the maximum outside diameter size of the deformation circle is more than described endoporus aperture size so that the puncture needle and sleeve pipe
Component does not have fit clearance and transition is smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611125664.6A CN106510813B (en) | 2016-12-09 | 2016-12-09 | Knife-free puncture needle capable of being deformed locally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611125664.6A CN106510813B (en) | 2016-12-09 | 2016-12-09 | Knife-free puncture needle capable of being deformed locally |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106510813A true CN106510813A (en) | 2017-03-22 |
| CN106510813B CN106510813B (en) | 2023-05-26 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611125664.6A Active CN106510813B (en) | 2016-12-09 | 2016-12-09 | Knife-free puncture needle capable of being deformed locally |
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| CN (1) | CN106510813B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109674517A (en) * | 2017-10-18 | 2019-04-26 | 江苏风和医疗器材股份有限公司 | A kind of height adjustment device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1430864A1 (en) * | 2002-12-19 | 2004-06-23 | Nipro Corporation | Transfer needle assembly |
| EP1516644A1 (en) * | 2003-09-22 | 2005-03-23 | Ela Medical | Device for piercing the septum and for placing a stimulation transeptal device at the left part |
| WO2009091514A2 (en) * | 2008-01-14 | 2009-07-23 | I-V Access Technology, Inc. | An apparatus for peripheral vascular access |
| EP2179698A1 (en) * | 2008-10-27 | 2010-04-28 | Ovesco Endoscopy AG | Puncturing instrument |
| WO2013019370A1 (en) * | 2011-08-04 | 2013-02-07 | Suture Ease, LLC | Dual insufflation and wound closure devices and methods |
| CN106037898A (en) * | 2016-08-02 | 2016-10-26 | 成都五义医疗科技有限公司 | Puncture outfit sealing system capable of being turned inwards wholly |
| CN106137338A (en) * | 2016-08-01 | 2016-11-23 | 成都五义医疗科技有限公司 | A kind of puncture outfit diaphragm seal of the fold of floating containing multidimensional |
-
2016
- 2016-12-09 CN CN201611125664.6A patent/CN106510813B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1430864A1 (en) * | 2002-12-19 | 2004-06-23 | Nipro Corporation | Transfer needle assembly |
| EP1516644A1 (en) * | 2003-09-22 | 2005-03-23 | Ela Medical | Device for piercing the septum and for placing a stimulation transeptal device at the left part |
| WO2009091514A2 (en) * | 2008-01-14 | 2009-07-23 | I-V Access Technology, Inc. | An apparatus for peripheral vascular access |
| EP2179698A1 (en) * | 2008-10-27 | 2010-04-28 | Ovesco Endoscopy AG | Puncturing instrument |
| WO2013019370A1 (en) * | 2011-08-04 | 2013-02-07 | Suture Ease, LLC | Dual insufflation and wound closure devices and methods |
| CN106137338A (en) * | 2016-08-01 | 2016-11-23 | 成都五义医疗科技有限公司 | A kind of puncture outfit diaphragm seal of the fold of floating containing multidimensional |
| CN106037898A (en) * | 2016-08-02 | 2016-10-26 | 成都五义医疗科技有限公司 | Puncture outfit sealing system capable of being turned inwards wholly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109674517A (en) * | 2017-10-18 | 2019-04-26 | 江苏风和医疗器材股份有限公司 | A kind of height adjustment device |
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|---|---|
| CN106510813B (en) | 2023-05-26 |
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