CN108065986A - Medical cutter head structure, medical water jet instrument and its forming method - Google Patents
Medical cutter head structure, medical water jet instrument and its forming method Download PDFInfo
- Publication number
- CN108065986A CN108065986A CN201611020742.6A CN201611020742A CN108065986A CN 108065986 A CN108065986 A CN 108065986A CN 201611020742 A CN201611020742 A CN 201611020742A CN 108065986 A CN108065986 A CN 108065986A
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- Prior art keywords
- medical
- locating slot
- cutter head
- liquid
- water jet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005452 bending Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 105
- 239000007921 spray Substances 0.000 claims description 40
- 210000002421 cell wall Anatomy 0.000 claims description 39
- 238000011084 recovery Methods 0.000 claims description 24
- 238000003754 machining Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000004663 powder metallurgy Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000001356 surgical procedure Methods 0.000 abstract description 19
- 208000027418 Wounds and injury Diseases 0.000 abstract description 6
- 208000014674 injury Diseases 0.000 abstract description 3
- 230000008733 trauma Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 11
- 238000005520 cutting process Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3203—Fluid jet cutting instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
Abstract
The present invention discloses a kind of medical cutter head structure, medical water jet instrument and its forming method.Medical cutter head structure includes：Body part, the first locating slot and the heel arranged on body part end that concave surface forms Longitudinal extending；The end of first locating slot extends along the bending direction of heel, and the second locating slot is formed in heel.Inlet tube is arranged on inside medical cutter head structure, and medical water jet instrument tip size is significantly less than the size of medical water jet instrument tip in existing structure, and the micromation of medical water jet instrument reduces corrective surgery notch in surgical procedure, reduces wound face；In preference, when medical water jet instrument tip constantly stretches into corrective surgery part interior in surgical procedure, operative site transverse direction wound face is conducive to the rehabilitation in post-surgical trauma face as the increase for stretching into depth is constant or gradual increase.
Description
Technical field
The present invention relates to for generating the forming method of the instrument of liquid jet and the instrument, specifically, being related to one
The medical cutter head structure of kind, medical water jet instrument and its forming method.
Background technology
As shown in Figure 1, being inlet tube in existing structure 1 and the position location relational graph of screwdriver head fixing part 2, inlet tube 1 is solid
Due to the outside of screwdriver head fixing part 2, when assembling is fixed with the screwdriver head fixing part 2 of inlet tube 1, forms medical water jet instrument, doctor
It is bigger than normal with water knife instrument tip size, increase the notch of operative site in surgical procedure, increase wound face, be unfavorable for operative site
Rehabilitation；On the other hand, inlet tube 1 is located at the outside of screwdriver head fixing part 2, is unfavorable for time of liquid waste jet stream in surgical procedure
It receives.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of medical cutter head structure, medical water jet instrument and its shaping side
Method.
A kind of medical cutter head structure disclosed in this paper first aspects, including：
Body part, concave surface formed Longitudinal extending the first locating slot and
Heel arranged on body part end；
The end of first locating slot extends along the bending direction of heel, and the second locating slot is formed in heel.
According to an embodiment of the present invention, in the cross section of body part, it is defined along the first locating slot groove width direction
Width is D1；In the vertical section of heel, it is D2 to define it along the width in the second locating slot groove width direction；D1 is not less than D2.
According to an embodiment of the present invention, the outside of the lateral surface of two cell wall of the first locating slot and the second locating slot cell wall
Face is arcwall face.
According to an embodiment of the present invention, the lateral surface of two cell wall of the first locating slot is inclined-plane；Second locating slot is put down
The lateral surface of two cell walls of its flute length direction of row is inclined-plane.
According to an embodiment of the present invention, further include：
The first positioning bar and the second positioning bar being oppositely arranged along the first locating slot flute length direction；
First positioning bar and the second positioning bar are connected to the two side of the first locating slot；
Wherein, the wall thickness of the first positioning bar and the second positioning bar is respectively less than the thickness of the first locating slot cell wall, the two it is outer
Side has a spacing with the lateral surface of cell wall being attached thereto respectively.
A kind of forming method of medical cutter head structure disclosed in this paper second aspects, using machining technique, powder
Metallurgical moulding process or metal injection molding technology are molded the medical cutter head structure described in first aspect present invention.
A kind of medical water jet instrument disclosed in this paper third aspect, including：
Medical cutter head structure, connecting tube, filter described in first aspect present invention and
Inlet tube, including：The bent portion and straight sections of connection, bent portion have end socket, and end socket is equipped with spray orifice；And
Liquid back pipe, with jet stream recovery port, end is socketed in connecting tube；
Body part top is connected to jet stream recovery port；
Part tube body in straight sections close to bent portion is positioned at the first locating slot, and center section tube body is inserted in liquid back pipe
Interior, tail end is pierced by connecting tube and is connected with filter；
Bent portion is positioned at the second locating slot, the opposed jet stream recovery port of spray orifice；
Wherein, inlet tube provides the access that liquid flows to spray orifice；Spray orifice sprays the liquid formation liquid jet for flowing through it,
Jet stream recovery port receives the liquid jet that spray orifice sprays.
According to an embodiment of the present invention, filter includes：
Feed liquor portion, screen pack and go out liquid portion；
Feed liquor portion and go out liquid portion and be equipped with a through hole vertically, straight sections are connected with going out the through hole in liquid portion；
Screen pack is arranged on feed liquor portion and goes out between liquid portion.
A kind of medical water jet instrument forming method disclosed in this paper fourth aspects, including：
It is separately formed medical cutter head structure and connecting tube described in first aspect present invention；
Inlet tube is bent, inlet tube includes：The bent portion and straight sections of connection, bent portion have end socket, and end socket is equipped with
Spray orifice；
Liquid back pipe is bent, liquid back pipe has jet stream recovery port；
Inlet tube is inserted into liquid back pipe, the center section tube body of straight sections is inserted in liquid back pipe；
Connecting tube is accessed in liquid back pipe end, straight sections tail end is pierced by connecting tube；
Medical cutter head structure is assembled, body part top is connected to jet stream recovery port, is managed in straight sections close to the part of bent portion
Body is positioned at the first locating slot, and bent portion is positioned at the second locating slot, the opposed jet stream recovery port of spray orifice；
Filter is connected in straight sections tail end.
According to an embodiment of the present invention, using machining technique, powder metallurgy forming technique or metal injection
Moulding process is molded the medical cutter head structure described in first aspect present invention.
When the medical cutter head structure of the present invention is used to position inlet tube, inlet tube is arranged on the inside of medical cutter head structure, when
It is required that medical one timing of cutter head structure size, medical water jet instrument tip size are significantly less than medical water jet instrument in existing structure
The size on top, the micromation of medical water jet instrument so as to reduce corrective surgery notch in surgical procedure, reduce wound area；And
And further, since the width in the first locating slot groove width direction is not less than the width in the second locating slot groove width direction, operation is worked as
When medical water jet instrument tip stretches into corrective surgery part interior in the process, operative site notch stretches into depth with dampening knife instrument
Increase is constant or gradual increase, be more advantageous to the rehabilitation in patient's post-surgical trauma face.
Description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, forms the part of the application, this Shen
Schematic description and description please does not form the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the position location relational graph of inlet tube and medical cutter head structure in the prior art；
Fig. 2 is a structure diagram of medical cutter head structure in embodiment one；
Fig. 3 is another structure diagram of medical cutter head structure in embodiment one；
Fig. 4 is the top view of medical cutter head structure in embodiment one；
Fig. 5 is a structure diagram of medical cutter head structure in embodiment two；
Fig. 6 is another structure diagram of medical cutter head structure in embodiment two；
Fig. 7 is the top view of medical cutter head structure in embodiment two；
Fig. 8 is a structure diagram of medical water jet instrument in embodiment three；
Fig. 9 is another structure diagram of medical water jet instrument in embodiment three；
Figure 10 is another structure diagram of medical water jet instrument in embodiment three；
Figure 11 is the exploded perspective view of medical water jet instrument in embodiment three；
Figure 12 is a structure diagram of medical water jet instrument in embodiment three；
Figure 13 is another structure diagram of medical water jet instrument in embodiment three；
Figure 14 is another structure diagram of medical water jet instrument in embodiment three；
Figure 15 is the exploded perspective view of medical water jet instrument in embodiment three.
Reference sign：
1st, inlet tube；2nd, screwdriver head fixing part；3rd, medical cutter head structure；31st, body part；32nd, heel；33rd, the first positioning
Slot；34th, the second locating slot；35th, the first positioning bar；36th, the second positioning bar；4th, medical water jet instrument；41st, connecting tube；411st, it is main
Tube body；412nd, it is in charge of body；42nd, filter；421st, feed liquor portion；422nd, screen pack；423rd, liquid portion is gone out；424th, feed liquor portion is logical
Hole；431st, straight sections；431a, the first sub- straight tube；431b, the second sub- straight tube；431c, the 3rd sub- straight tube；431d, the 4th son are straight
Pipe；432nd, bent portion；4321st, end socket；4322nd, spray orifice；44th, liquid back pipe；441st, jet stream recovery port；A, amplified bent portion.
Specific embodiment
Multiple embodiments of the present invention, as clearly stated, the details in many practices will be disclosed with schema below
It will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the present invention.Also
It is to say, in some embodiments of the present invention, the details in these practices is non-essential.In addition, for the sake of simplifying schema,
Some known usual structures will illustrate it in a manner of simply illustrative in the drawings with component.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining relative position relation, motion conditions under a certain particular pose (as shown in drawings) between each component etc., if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, in the present invention such as relating to the description of " first ", " second " etc. be only used for description purpose, not especially censure
The meaning of order or cis-position, also non-to limit the present invention, the component described just for the sake of difference with same technique term
Or operation, and it is not intended that indicating or implying its relative importance or the implicit number for indicating indicated technical characteristic
Amount." first " is defined as a result, at least one this feature can be expressed or be implicitly included to the feature of " second ".It is in addition, each
Technical solution between a embodiment can be combined with each other, but must can be implemented as base with those of ordinary skill in the art
Plinth will be understood that the combination of this technical solution is not present when the combination appearance of technical solution is conflicting or can not realize,
Also not the present invention claims protection domain within.
The present invention is to be related to the relevant design of a kind of medical cutter head structure, medical water jet instrument and its forming method.The
On the one hand, medical cutter head structure of the invention is highly suitable in various needle holder being applied to surgery Minimallies, to position inlet tube, it is convenient into
Highly pressurised liquid is passed through in liquid pipe, patient body is respectively organized or organ is cut, melted, removed or removed etc.；Second party
Face, medical cutter head structure of the invention, which is also applied for other, to be had in be cut or punching instrument, and feed liquor is similar to position
Other feed liquor components of pipe；Certainly, medical cutter head structure of the invention can be applicable to other with various structures and various
The liquid jet device of purpose, to position other feed liquor components.When the medical cutter head structure of the present invention is positioned into liquid pipe, formation is originally
After the medical water jet instrument of invention, medical water jet instrument was both used in various needle holder being applied to surgery Minimallies, can be also used for other need
On the object of cutting or punching；When the present invention medical cutter head structure position other feed liquor components, for other with various knots
When in structure and the liquid jet device of various purposes, according to its purpose of usage, liquid that can be to be passed through in appropriately selected feed liquor component
Body is highly pressurised liquid or common liq.In addition, the embodiment of medical water jet instrument provided by the invention can be each with outside
The gripping member of kind construction is combined so that operator can cosily be held with hand, so as to more convenient by medical water jet instrument
For various needle holder being applied to surgery Minimallies or other need the object of cutting and boring.To make the present invention it is more readily appreciated that four will be divided below
A specific embodiment be further described the medical cutter head structure of the present invention, medical water jet instrument and its forming method and
Its caused benefit.It should be noted that in four following specific embodiments, mainly positioned with medical cutter head structure
After inlet tube forms medical water jet instrument, medical water jet instrument is used to exemplified by various needle holder being applied to surgery Minimallies illustrate, at this point,
Highly pressurised liquid is passed through in inlet tube, but this does not form limitation of the invention.When being passed through common liq, medical cutter head structure
It positions the mode of inlet tube and medical cutter head structure positions other feed liquor components and forms the benefit of water knife instrument and generation with being passed through
Essentially identical during highly pressurised liquid, simply purpose of usage is different.Herein, when liquid is highly pressurised liquid, highly pressurised liquid includes height
Press current or high pressure physiology salt current or other highly pressurised liquid streams, the species of highly pressurised liquid is according to medical water jet instrument in inlet tube
The species or physicochemical properties for having object to be cut during work are flexibly chosen.
Embodiment one：
Please also refer to Fig. 2-4, the present embodiment provides a kind of medical cutter head structures 3.Medical cutter head structure 3 includes：Body
Portion 31 and heel 32,31 end of body part extend towards with its own direction with a certain angle, form heel 32, this
Place angle be more than zero degree be less than 180 degree between any angle, be preferably 90 degree, heel 32 with one bend
Curvature.The wherein surface of body part 31 is recessed inwardly, and forms the first locating slot 33, and 33 Longitudinal extending of the first locating slot is so-called vertical
To referring to the direction parallel with 33 flute length direction of the first locating slot.First locating slot 33 have opposite two cell walls and
One bottom wall.The end of first locating slot 33 extends along the bending direction of heel 32, and the second locating slot is formed in heel 32
34, the second locating slot 34 has another cell wall that two opposite cell walls, a bottom wall and both ends are respectively connected with two cell walls.Wherein,
Further, in the cross section of body part 31, it is D1 to define it along the width in 33 groove width direction of the first locating slot；Heel 32
In vertical section, it is D2 to define it along the width in 34 groove width direction of the second locating slot；D1 is not less than D2, the transverse direction of so-called body part 31
Section refers to, perpendicular to 33 flute length extending direction of the first locating slot, cut 31 obtained profile morphology of body part；So-called elbow
The vertical section in portion 32 refers to, along parallel to 33 flute length extending direction of the first locating slot, cut 32 obtained section of heel
Form.
It please refers to Fig.2 and 3, medical cutter head structure 3 provided in this embodiment, two cell walls and second of the first locating slot 33
The lateral surface of the cell wall of locating slot 34 is arcwall face, and the bending direction of the arc external side of first 33 liang of cell walls of locating slot is separate
First locating slot, 33 cell wall medial surface is outwardly, and the bending direction of the arc external side of 34 cell wall of the second locating slot is away from second
The medial surface of 34 cell wall of locating slot is outwardly, specifically please refers to Fig.2-3.The lateral surface of opposite two cell walls of first locating slot 33 it
Between spacing it is equal, and two cell wall lateral surfaces are arcwall face, and 31 longitudinal profile of body part is rectangle, D1=D2.Along body part
31 top extends to end direction, and spacing is gradually reduced between the lateral surface of 33 opposite two cell walls of the first locating slot, and first
When the lateral surface of the cell wall of two cell walls of locating slot 33 and the second locating slot 34 is arcwall face, 31 longitudinal profile of body part is
Trapezoidal, D1 is more than D2.
Multiple reference chart 2-4, medical cutter head structure 3 further include：It is oppositely arranged along 33 flute length direction of the first locating slot
First positioning bar 35 and the second positioning bar 36；First positioning bar 35 and the second positioning bar 36 are connected to the first locating slot 33
Two side；Wherein, the wall thickness of the first positioning bar 35 and the second positioning bar 36 is respectively less than the thickness of 33 cell wall of the first locating slot, the two
Lateral surface there is a spacing with the lateral surface of cell wall being attached thereto respectively, it is preferable that the spacing is greater than or equal to medical water
The thickness of liquid back pipe tube wall in knife instrument, the more preferably thickness equal to liquid back pipe tube wall in medical water jet instrument.First positioning
35 and second positioning bar 36 of muscle is used to body part 31 being positioned in aftermentioned liquid back pipe.Wherein, body part 31, heel 32 and
First positioning bar 35, the second positioning bar 36 are integrally formed.
In addition, in this example, machining technique, powder metallurgy forming technique or gold may be employed in medical cutter head structure 3
Belong to injection molding technique shaping.
Medical cutter head structure 3 is for when positioning inlet tube 1, inlet tube 1 to be arranged on the inside of medical cutter head structure 3, when medical
3 size of cutter head structure is certain, and 4 tip size of medical water jet instrument is significantly less than 4 top of medical water jet instrument in existing structure
Size, medical water jet instrument micromation, so as to reduce the wound area of patient in surgical procedure；Also, due to the first locating slot
The width in 33 groove width directions is not less than the width in 34 groove width direction of the second locating slot, when medical water jet instrument 4 pushes up in surgical procedure
When corrective surgery part interior is constantly stretched into end, operative site transverse direction wound area is constant or gradual with the increase for stretching into depth
Increase, is more advantageous to the rehabilitation in patient's post-surgical trauma face.The cell wall of the cell wall of first locating slot and the second locating slot is shaped to
Arcwall face or inclined-plane are conducive to the cutting of scalpel edge.
Embodiment two：
Fig. 5-7 are refer to, this example provides the medical cutter head structure 3 of another structure.When different from embodiment one, this example
In, the lateral surface of first 33 liang of cell walls of locating slot is inclined-plane；Two cell walls of 34 its parallel flute length direction of the second locating slot
Lateral surface be inclined-plane.Positioned at a wherein cell wall for the first locating slot 33 of medical 3 longitudinal profile homonymy of cutter head structure and
A wherein cell wall for two locating slots 34, the lateral surface of the two are total to inclined-plane, specifically refer to Fig. 5-7.Wherein, further, edge
The top of body part 31 extends to end direction, and spacing is gradually reduced between the lateral surface of 33 opposite two cell walls of the first locating slot,
The lateral surface of first 33 liang of cell walls of locating slot is inclined-plane, and 31 longitudinal profile of body part is trapezoidal, and D1 is more than D2.
Embodiment three：
This example provides a kind of medical water jet instrument 4, with reference to figure 8-15, wherein, the medical water jet instrument 4 shown in Fig. 8-11
In, medical cutter head structure 3 is identical with embodiment one；In medical water jet instrument 4 shown in Figure 12-15, medical cutter head structure 3 with
Embodiment two is identical.
In this example, medical water jet instrument 4 includes：Medical cutter head structure 3, connecting tube 41, filter 42, inlet tube 1 and
Liquid back pipe 44.
Medical cutter head structure 3 is referring to embodiment one or two, and which is not described herein again.
Inlet tube 1, including：The bent portion 432 of connection and straight sections 431.Bent portion 432 has end socket 4321, end socket
4321 are equipped with spray orifice 4322, referring to amplified bent portion schematic diagram A in Figure 11.Straight sections 431 have integrally formed four
Cross-talk straight tube is bent to form the straight sections 431 with four cross-talk straight tubes using a tube body, such as Figure 11, the first sub- straight tube 431a
One end connects bent portion 432, and the other end connects the second sub- straight tube 431b, and the 3rd son of other end connection of the second sub- straight tube 431b is straight
The other end of pipe 431c, the 3rd sub- straight tube 431c connect the 4th sub- straight tube 431d, the first sub- sub- straight tubes of straight tube 431a and second
431b has an angle, and the second sub- sub- straight tube 431c of straight tube 431b and the 3rd have an angle, the 3rd sub- straight tube 431c and the 4th
Sub- straight tube 431d has an angle, and four cross-talk straight tubes are respectively provided with tube wall and tube cavity.End socket 4321 is for example arc-shaped for convex surface end socket
Face end socket or conical head can make the highly pressurised liquid for being passed through bent portion 432 be smoothly transitted into spray orifice 4322.Inlet tube 1 to
The flow passage that highly pressurised liquid flows to spray orifice 4322 is provided, inlet tube 1 can be made of a variety of materials, no matter select which kind of material
Inlet tube 1 is made, also no matter which kind of above-mentioned mode is used to form inlet tube 1, when being passed through highly pressurised liquid, inlet tube 1 must have
Enough compressive resistances are prepared enough, so that during the work of medical water jet instrument 4, can will be conveyed with the highly pressurised liquid of pressure needed for work
To spray orifice 4322, so that spray orifice 4322 forms liquid jet, the compressive resistance of inlet tube 1 can be equal to or more than medical water jet device
The pressure for the highly pressurised liquid that tool 4 uses when working is preferably greater than the pressure of the highly pressurised liquid used when medical water jet instrument 4 works
Power, and medical water jet instrument 4 work when for formed the pressure of the highly pressurised liquid of liquid jet depend on spray orifice 4322 design
And there are to be cut, ablation or the tissue or the hardness of object that eliminate or intensity etc..Inlet tube 1 can be pipe, elliptical tube, side
The pipe of pipe or other shapes.
Liquid back pipe 44 its with jet stream recovery port 441, for recycling the liquid jet that spray orifice 4322 sprays in Minimally Invasive Surgery.
The shape when shape of liquid back pipe 44 is connected with the first sub- sub- straight tube 431b of straight tube 431a and second matches.
Connecting tube 41 has main pipe 411, is in charge of body with what main pipe 411 connected equipped with one in the side wall of main pipe 411
412。
Filter 42 may be employed to be designed in the prior art, alternatively, filter 42 includes：Feed liquor portion 421, screen pack
422 and go out liquid portion 423；Feed liquor portion 421 and go out liquid portion 423 and be equipped with a through hole vertically, straight sections 431 and go out in liquid portion 423
Through hole connection；Screen pack 422 is arranged on feed liquor portion 421 and goes out between liquid portion 423.
31 top of body part of medical cutter head structure 3 is connected to jet stream recovery port 441；The bent portion 432 of inlet tube 1 is positioned at
Second locating slot 34,4322 opposed jet stream recovery port 441 of spray orifice, close to part tube body i.e. the of bent portion 432 in straight sections 431
One sub- straight tube 431a is positioned at the first locating slot 33, and the sub- straight tube 431b of center section tube body i.e. second is inserted in liquid back pipe 44, tail
End is pierced by connecting tube 41, is located at the 3rd sub- straight tube 431c part and is in charge of in body 412, the 4th sub- straight tube 431d then with filter 42
It is connected；44 end of liquid back pipe is socketed in connecting tube 41.
When medical water jet instrument 4 works, the feed liquor portion 421 of filter 42 connects external high pressure liquid supply source such as high pressure
Pump, the through hole in feed liquor portion 421 are in fluid communication by highly pressurised liquid transfer passage such as pressure pipe and high-pressure pump, highly pressurised liquid via
After high-pressure pump, screen pack 422 is flowed into from the through hole of feed liquor portion 421, by filtering, feed liquor is flowed by the through hole 424 of feed liquor portion
Pipe 1, highly pressurised liquid is successively from the 4th sub- straight tube 431d, the 3rd sub- straight tube 431c, the second sub- straight tube 431b, the first sub- straight tube 431a
And the tube cavity of bent portion 432 continues to flow to spray orifice 4322, by forming the of different shapes of various needs during spray orifice 4322
Liquid jet sprays, and high pressure caused by the liquid jet that spray orifice 4322 sprays can make medical water jet instrument 4 perform various surgeries
The actions such as the cutting and boring of Minimally Invasive Surgery or various other objects, it will be appreciated by persons skilled in the art that working as medical water jet
Instrument 4 be used for various needle holder being applied to surgery Minimallies when, number of types of high-pressure pump can be applied to the embodiment in, including but it is unlimited
In piston pump and diaphragm pump；Spray orifice 4322 then has suitable shape, such as circular cross section, elliptic cross-section or rectangular section
Or other cross sectional shapes so that the liquid of different shapes for being suitble to specifically needs can be formed when highly pressurised liquid flows through spray orifice 4322
Jet stream, liquid jet can be used for cutting, ablation, stripping or each tissue of removing patient body or device in needle holder being applied to surgery Minimally
Official or for performing cutting or the punching action that other need cutting object.The size of spray orifice 4322, it is required according to working
The amount of liquid jet is designed.The liquid jet sprayed from spray orifice 4322, liquid back pipe 44 is flowed by jet stream recovery port 441, is passed through
Liquid back pipe 44 flows to the main pipe 411 of connecting tube 41, and main pipe 411 can connect outside liquid retracting device, by spray orifice 4322
The liquid jet recycling of ejection.
Example IV：
The present embodiment provides the moulding process of the medical water jet instrument 4 described in embodiment three.Including：
It is separately formed medical cutter head structure 3 and connecting tube 41；
Inlet tube 1 is bent, inlet tube 1 includes：The bent portion 432 of connection and straight sections 431, bent portion 432 have end socket
4321, end socket 4321 is equipped with spray orifice 4322；Specifically, the tube body of an appropriate size is selected, the tube body is bent, forms it into
Straight sections 431 and bent portion 432 with four cross-talk straight tubes；
Liquid back pipe 44 is bent, liquid back pipe 44 has jet stream recovery port 441；The shape of liquid back pipe 44 and the first sub- straight tube 431a
And shape during the second sub- straight tube 431b connections matches.
Inlet tube 1 is inserted into liquid back pipe 44, the center section tube body of straight sections 431 is made to be inserted in liquid back pipe 44；
Connecting tube 41 is accessed in 44 end of liquid back pipe, 431 tail end of straight sections is pierced by connecting tube 41；
Assemble medical cutter head structure 3,31 top of body part is connected to jet stream recovery port 441, close to bent portion in straight sections 431
432 part tube body is positioned at the first locating slot 33, and bent portion 432 is positioned at the second locating slot 34,4322 opposed jet stream of spray orifice
Recovery port 441；
Filter 42 is connected in 431 tail end of straight sections.
In process above, medical cutter head structure 3, shaping connecting tube 41, bending inlet tube 1 and bending liquid back pipe 44 are molded not
Successively.
Wherein, the shaping of medical cutter head structure 3 is using machining, powder metallurgy forming technique and metal injection molded
Any one in technique.
Existing design may be employed in filter 42, can also use following moulding process：In feed liquor portion 421 and go out liquid portion
423 are axially formed through hole, between setting screen pack 422 in feed liquor portion 421 and going out liquid portion 423, are fixedly connected with feed liquor portion 421
And going out liquid portion 423, the tail end of straight sections 431 is pierced by connecting tube 41 and connects out liquid portion 423, and connects the through hole 424 of feed liquor portion.Into
Liquid portion 421 and go out two end faces of 423 face of liquid portion and be fixedly connected by welding.The tail end of straight sections 431 connects out liquid portion
423, liquid portion 423 is preferably connected out by laser spot welding.
When inlet tube 1 is inserted into liquid back pipe 44, can the 4th sub- straight tube 431d first first be penetrated into 44 end of liquid back pipe, complete into
After the insertion of liquid pipe 1, bent portion 432 is positioned at the second locating slot 34, is managed in straight sections 431 close to the part of bent portion 432
Body is positioned at the first locating slot 33.By laser spot welding between 432 and second locating slot 34 of bent portion, bent portion 432 is positioned
In the second locating slot 34.Pass through laser between the part tube body and the first locating slot 33 of bent portion 432 in straight sections 431
Part tube body close to bent portion 432 in straight sections 431 is positioned in the first locating slot 33 by spot welding.By body part 31 at least
One outside and 44 inner wall laser spot welding of liquid back pipe, jet stream recovery port 441 is connected to by 31 top of body part；Preferably, it is being arranged at
By laser spot welding between first positioning bar 35 of the first 33 liang of locating slot cell wall or the second positioning bar 36 and liquid back pipe 44, it incite somebody to action this
31 top of body portion is connected to jet stream recovery port 441, and 44 pipe thickness of liquid back pipe is equal to 35 lateral surface of the first positioning bar with being attached thereto
Cell wall lateral surface between spacing.
The upper only embodiments of the present invention, are not intended to limit the invention.For those skilled in the art
For, the invention may be variously modified and varied.All any modifications made in spirit and principles of the present invention are equal
Replace, improve etc., it should all be included within scope of the presently claimed invention.
Claims (10)
1. a kind of medical cutter head structure, which is characterized in that including：
Body part, concave surface formed Longitudinal extending the first locating slot and
Heel arranged on the body part end；
The end of first locating slot extends along the bending direction of the heel, and the second positioning is formed in the heel
Slot.
2. medical cutter head structure according to claim 1, it is characterised in that：In the cross section of the body part, it is defined
Width along the first locating slot groove width direction is D1；In the vertical section of the heel, it is defined along the described second positioning
The width in slot groove width direction is D2；D1 is not less than D2.
3. medical cutter head structure according to claim 2, it is characterised in that：The lateral surface of first locating slot, two cell wall
And the lateral surface of the second locating slot cell wall is arcwall face.
4. medical cutter head structure according to claim 2, it is characterised in that：The lateral surface of first locating slot, two cell wall
It is inclined-plane；The lateral surface of two cell walls of its parallel flute length direction of second locating slot is inclined-plane.
5. according to any medical cutter head structures of claim 1-4, which is characterized in that it is further included：
The first positioning bar and the second positioning bar being oppositely arranged along the first locating slot flute length direction；
First positioning bar and the second positioning bar are connected to the two side of first locating slot；
Wherein, the wall thickness of first positioning bar and second positioning bar is respectively less than the thickness of the first locating slot cell wall,
The lateral surface of the two has a spacing with the lateral surface of cell wall being attached thereto respectively.
6. a kind of forming method of medical cutter head structure, it is characterised in that：Using machining technique, powder metallurgy forming work
Skill or metal injection molding technology, any medical cutter head structures of shaping claim 1-5.
7. a kind of medical water jet instrument, which is characterized in that including：
Any medical cutter head structures of claim 1-5, connecting tube, filter and
Inlet tube, including：The bent portion and straight sections of connection, bent portion have end socket, and end socket is equipped with spray orifice；And
Liquid back pipe, with jet stream recovery port, end is socketed in connecting tube；
Body part top is connected to jet stream recovery port；
Part tube body in straight sections close to bent portion is positioned at the first locating slot, and center section tube body is inserted in liquid back pipe, tail
End is pierced by connecting tube and is connected with filter；
Bent portion is positioned at the second locating slot, the opposed jet stream recovery port of spray orifice；
Wherein, inlet tube provides the access that liquid flows to spray orifice；Spray orifice sprays the liquid formation liquid jet for flowing through it, jet stream
Recovery port receives the liquid jet that spray orifice sprays.
8. medical water jet instrument according to claim 7, which is characterized in that the filter includes：
Feed liquor portion, screen pack and go out liquid portion；
The feed liquor portion and it is described go out liquid portion be equipped with a through hole vertically, the straight sections with it is described go out liquid portion in through hole connect
It is logical；
The screen pack be arranged on the feed liquor portion and it is described go out liquid portion between.
9. a kind of medical water jet instrument forming method, which is characterized in that including：
It is separately formed any medical cutter head structures of claim 1-5 and connecting tube；
Inlet tube is bent, inlet tube includes：The bent portion and straight sections of connection, bent portion have end socket, and end socket is equipped with spray orifice；
Liquid back pipe is bent, liquid back pipe has jet stream recovery port；
Inlet tube is inserted into liquid back pipe, the center section tube body of straight sections is inserted in liquid back pipe；
Connecting tube is accessed in liquid back pipe end, straight sections tail end is pierced by connecting tube；
Assemble medical cutter head structure, body part top is connected to jet stream recovery port, and the part tube body in straight sections close to bent portion is determined
Positioned at the first locating slot, bent portion is positioned at the second locating slot, the opposed jet stream recovery port of spray orifice；
Filter is connected in straight sections tail end.
10. medical water jet instrument forming method according to claim 9, which is characterized in that the machining technique of use,
Powder metallurgy forming technique or metal injection molding technology, any medical cutter head structures of shaping claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611020742.6A CN108065986B (en) | 2016-11-14 | Medical tool bit structure, medical water jet instrument and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611020742.6A CN108065986B (en) | 2016-11-14 | Medical tool bit structure, medical water jet instrument and forming method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108065986A true CN108065986A (en) | 2018-05-25 |
| CN108065986B CN108065986B (en) | 2024-04-23 |
Family
ID=
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|---|---|---|---|---|
| WO2000069348A1 (en) * | 1999-05-18 | 2000-11-23 | Hydrocision, Inc. | Fluid jet surgical instruments |
| US6511493B1 (en) * | 2000-01-10 | 2003-01-28 | Hydrocision, Inc. | Liquid jet-powered surgical instruments |
| US20030125660A1 (en) * | 2001-11-21 | 2003-07-03 | Moutafis Timothy E. | Liquid jet surgical instruments incorporating channel openings aligned along the jet beam |
| US20040243157A1 (en) * | 2002-10-25 | 2004-12-02 | Connor Brian G. | Surgical devices incorporating liquid jet assisted tissue manipulation and methods for their use |
| WO2006066160A1 (en) * | 2004-12-14 | 2006-06-22 | Hydrocision, Inc. | Liquid jet surgical instrument |
| WO2007087404A2 (en) * | 2006-01-24 | 2007-08-02 | Hydrocision, Inc. | Liquid jet surgical instrument having a distal end with a selectively controllable shape |
| CN101657163A (en) * | 2006-12-29 | 2010-02-24 | 史密夫和内修有限公司 | Wound bed preparation |
| CN105476692A (en) * | 2016-01-29 | 2016-04-13 | 中国人民解放军第二军医大学 | Debridement water tool bit system capable of being reused |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000069348A1 (en) * | 1999-05-18 | 2000-11-23 | Hydrocision, Inc. | Fluid jet surgical instruments |
| US6511493B1 (en) * | 2000-01-10 | 2003-01-28 | Hydrocision, Inc. | Liquid jet-powered surgical instruments |
| US20030125660A1 (en) * | 2001-11-21 | 2003-07-03 | Moutafis Timothy E. | Liquid jet surgical instruments incorporating channel openings aligned along the jet beam |
| US20040243157A1 (en) * | 2002-10-25 | 2004-12-02 | Connor Brian G. | Surgical devices incorporating liquid jet assisted tissue manipulation and methods for their use |
| WO2006066160A1 (en) * | 2004-12-14 | 2006-06-22 | Hydrocision, Inc. | Liquid jet surgical instrument |
| WO2007087404A2 (en) * | 2006-01-24 | 2007-08-02 | Hydrocision, Inc. | Liquid jet surgical instrument having a distal end with a selectively controllable shape |
| CN101657163A (en) * | 2006-12-29 | 2010-02-24 | 史密夫和内修有限公司 | Wound bed preparation |
| CN105476692A (en) * | 2016-01-29 | 2016-04-13 | 中国人民解放军第二军医大学 | Debridement water tool bit system capable of being reused |
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