CN106725746A - Medical cutter sweep - Google Patents
Medical cutter sweep Download PDFInfo
- Publication number
- CN106725746A CN106725746A CN201710042823.4A CN201710042823A CN106725746A CN 106725746 A CN106725746 A CN 106725746A CN 201710042823 A CN201710042823 A CN 201710042823A CN 106725746 A CN106725746 A CN 106725746A
- Authority
- CN
- China
- Prior art keywords
- helical groove
- actuator
- interior
- sliding part
- helical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of medical cutter sweep, including：Outer knife pipe, cutting window is provided with outer knife pipe；Interior knife pipe, interior knife pipe is arranged in the outer knife pipe, and interior knife pipe has cutter head；Drive mechanism, drive mechanism includes interior actuator, outer actuator and guiding mechanism, interior actuator is connected with the interior knife pipe and drives interior knife pipe to rotate, the first helical duct is provided with interior actuator, outer actuator is set in the outside of the interior actuator, the first sliding part is provided with outer actuator, first sliding part is slided along first helical duct, the interior actuator is driven to drive the interior knife pipe axially reciprocating, guiding mechanism to pass through the transition part of first helical duct for guiding first sliding part.The medical cutter sweep that the present invention is provided, when sliding part slides into the transition part of helical duct, makes the sliding part in transition part smoothly transit, it is to avoid stuck phenomenon occurs, good reliability by guide mechanism.
Description
Technical field
The present invention relates to surgical operating instrument, more particularly to a kind of medical cutter sweep.
Background technology
Medical rotation reciprocating apparatus is used in the operation of cutting tissue, and removal procedure and opening are carried out to pathological tissues etc.
Operation path.Traditional medical rotation reciprocating apparatus is generally made up of tool parts and drive part, and tool parts include outer knife
Pipe and interior knife pipe, the laterally disposed cutting window in front end of outer knife pipe are placed in outer knife pipe in interior knife pipe.Drive part and interior knife pipe
Connection, for driving interior knife pipe straight line and rotary motion, using interior knife pipe and outer knife pipe mutual shear motion, realizes cutting work(
Energy.
Existing drive part includes, with screw rod and the overcoat being set in outside screw rod composition, being set on screw rod
There are two helicla flutes that direction of rotation is opposite, one end of screw rod is connected with interior knife pipe, and the other end is connected with motor, overcoat
On be provided with the sliding block that can be slided in double spiral groove.When screw rod rotates, sliding block is slided along helicla flute makes screw rod rotate fortune
Axial movement is produced while dynamic, so as to cause interior knife pipe straight line and rotary motion.The drive part of this structure, sliding block from
Easily there is stuck situation when being transitioned into another helicla flute in one helicla flute, and reliability is low.
The content of the invention
For above-mentioned state of the art, the present invention provides a kind of medical cutter sweep, and it is avoided that driver part is stuck
Phenomenon occurs, and reliability is high.
In order to solve the above-mentioned technical problem, a kind of medical cutter sweep provided by the present invention, including：
Outer knife pipe, cutting window is provided with outer knife pipe；
Interior knife pipe, interior knife pipe is arranged in the outer knife pipe, and interior knife pipe has cutter head；
Also include：
Drive mechanism, drive mechanism includes interior actuator, outer actuator and guiding mechanism, interior actuator and the interior knife
Pipe is connected and drives interior knife pipe to rotate, and the first helical duct is provided with interior actuator, and outer actuator is set in described
The outside of actuator, is provided with the first sliding part on outer actuator, the first sliding part is slided along first helical duct, drives
The interior actuator drives the interior knife pipe axially reciprocating, and guiding mechanism is described for guiding first sliding part to pass through
The transition part of the first helical duct.
Wherein in one embodiment, first helical duct is included for making the interior actuator to first direction axle
To the first helical groove of motion, for interior actuator is axially moved to opposite second direction the second helical groove, set
Put the First Transition portion between one end of one end of the first helical groove and the second helical groove and be arranged on the first spiral
The second transition part between the other end of the other end of groove and the second helical groove, the drive mechanism is used to guide described the
One sliding part passes through the First Transition portion and second transition part.
Wherein in one embodiment, the guiding mechanism includes the second helical duct being arranged on the interior actuator
With the second sliding part being arranged on the outer actuator, the second sliding part slides along the second helical duct, guiding described first
Sliding part passes through the First Transition portion and second transition part.
Wherein in one embodiment, second helical duct has for making interior actuator to the first direction axle
The 4th helical groove to the 3rd helical groove of motion and for making interior actuator be axially moved to the second direction；It is described
Second sliding part is slided along the 3rd helical groove or the 4th helical groove, guides first sliding part by described
First Transition portion or second transition part.
Wherein in one embodiment, the interior actuator is cut with the near-end near the cutting window and away from described
Cut the distal end of window, one end phase of the close described interior actuator near-end of first helical groove and second helical groove
Intercommunicated, the First Transition portion is arranged on the communicating position between first helical groove and second helical groove,
One end of the close described interior actuator distal end of first helical groove and second helical groove mutually disconnects after intersecting,
Second transition part is arranged on the open position between first helical groove and second helical groove.
Wherein in one embodiment, the First Transition portion is to be connected to first helical groove and second spiral shell
Groove between the one end for the close described interior actuator near-end for revolving groove, second transition part is first helical groove
And the described interior actuator outer peripheral face between one end of the close described interior actuator distal end of second helical groove, described
The groove bottom of one end of the close described interior actuator distal end of one helical groove and second helical groove and the interior driving
Seamlessly transitted between part outer peripheral face.
Wherein in one embodiment, second helical duct also has the one end for being arranged on the 3rd helical groove
And the 3rd transition part between one end of the 4th helical groove and it is arranged on the other end and the institute of the 3rd helical groove
The 4th transition part between the other end of the 4th helical groove is stated, first sliding part is along first helical groove or described
Second helical groove is slided, and guides second sliding part to pass through the 3rd transition part and the 4th transition part.
Wherein in one embodiment, the interior actuator is cut with the near-end near the cutting window and away from described
Cut the distal end of window, one end phase of the close described interior actuator distal end of the 3rd helical groove and the 4th helical groove
Intercommunicated, the 3rd transition part is arranged on the communicating position between the 3rd helical groove and the 4th helical groove,
One end of the close described interior actuator near-end of the 3rd helical groove and the 4th helical groove mutually disconnects after intersecting,
4th transition part is arranged on the open position between the 3rd helical groove and the 4th helical groove.
Wherein in one embodiment, the 3rd transition part is to be connected to the 3rd helical groove and the 4th spiral shell
Groove between the one end for the close described interior actuator distal end for revolving groove, the 4th transition part is the 3rd helical groove
And the described interior actuator outer peripheral face between one end of the close described interior actuator near-end of the 4th helical groove, described
The groove bottom of one end of the close described interior actuator near-end of three helical grooves and the 4th helical groove and the interior driving
Seamlessly transitted between part outer peripheral face.
Wherein in one embodiment, the centripetal angle between first sliding part and second sliding part is 90 degree.
Wherein in one embodiment, the outer actuator is tubular structure, and first is provided with the outer actuator
Mounting hole and the second mounting hole, first sliding part and second sliding part are spherical, first sliding part and institute
The second sliding part is stated to be separately mounted in first mounting hole and second mounting hole.
Wherein in one embodiment, it is provided with first mounting hole for applying elasticity pressure to the first sliding part
First elastomeric element of power, is provided with the second bullet for applying elastic pressure to the second sliding part in second mounting hole
Property part.
Wherein in one embodiment, first annular boss and the second annular are provided with the outer peripheral face of the outer actuator
Boss, first mounting hole and second mounting hole are separately positioned on the first annular boss and second convex annular
On platform.
Wherein in one embodiment, set on the outer peripheral face of the first annular boss and/or second annular boss
It is equipped with some lightening recesses.
Wherein in one embodiment, the drive mechanism also includes being used for applying axial direction to the interior actuator
Elastic force the 3rd elastomeric element.
The medical cutter sweep that the present invention is provided, when sliding part slides into the transition part of helical duct, by vectoring aircraft
Structure makes the sliding part in transition part smoothly transit, it is to avoid stuck phenomenon occurs, good reliability.
Additional technical feature of the present invention has the advantage that will be said in this specification specific embodiment part
It is bright.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of the medical cutter sweep in the embodiment of the present invention；
Fig. 2 is the dimensional structure diagram of the interior actuator of the medical cutter sweep in the embodiment of the present invention；
Fig. 3 is the dimensional structure diagram of the outer actuator of the medical cutter sweep in the embodiment of the present invention；
Fig. 4 is the main structure diagram of the outer actuator of the medical cutter sweep in the embodiment of the present invention；
Fig. 5 is the dimensional structure diagram of the main rotatable parts of the medical cutter sweep in the embodiment of the present invention；
Fig. 6 is the fundamental diagram of the medical cutter sweep in the embodiment of the present invention.
Description of reference numerals：10th, outer knife pipe；12nd, cutting window；20th, interior knife pipe；22nd, cutter head；30th, interior actuator；30a、
Near-end；30b, distal end；32nd, the first helical duct；32a, the first helical groove；32b, the second helical groove；32c, First Transition
Portion；34th, the second helical duct；34a, the 3rd helical groove；34b, the 4th helical groove；34c, the 3rd transition part；36th, interior driving
Part body；The outer peripheral face of 36a, interior actuator body；38th, the first driving section；40th, outer actuator；41st, the first mounting hole；42nd,
Two mounting holes；43rd, the first sliding part；44th, steam vent；45th, the second sliding part；46th, the second elastomeric element；47th, it is first annular convex
Platform；48th, the second annular boss；49th, lightening recesses；50th, main rotatable parts；52nd, the second driving section；54th, it is input into connecting portion；56、
Through hole；60th, shell；62nd, front casing；64th, intermediate case；66th, rear casing；70th, knife pipe support member；80th, the 3rd elastomeric element.
Specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments the present invention is described in detail.It should be noted that not conflicting
In the case of, the feature in following embodiment and embodiment can be mutually combined.
As shown in figure 1, medical cutter sweep in one of embodiment of the invention includes shell 60, outer knife pipe 10, interior
Knife pipe 20 and drive mechanism, for the ease of description, shell defined below 60 is close to the one of outer knife pipe 10 and the interior side of knife pipe 20
It is front end to hold, and the other end is rear end, and outer knife pipe 10 and interior knife pipe 20 are rear end near one end of the side of shell 60, and the other end is preceding
End.
Shell 60 is hollow tubular structure.Process for convenience and assemble, shell 60 is segmentation structure, from its front end
To its rear end, shell 60 is sequentially connected and is constituted by front casing 62, intermediate case 64 and rear casing 66 successively.
The front end of outer knife pipe 10 is provided with cutting window 12, and the rear end of outer knife pipe 10 is provided with knife pipe support member 70, knife pipe
Support member 70 is fixedly mounted in the front end of front casing 62.Interior knife pipe 20 is arranged in the outer knife pipe 10, the interior knife pipe
20 front end has the cutter head 22 for cutting through the tissue of cutting window 12, in the rear end insertion shell 60 of interior knife pipe 20.
When interior knife pipe 20 cutter head 22 be cutting edge when, cutting window 12 is set on the front end side of outer knife pipe 10, cutter head 22 with cut
The mutual shear motion of window 12 is cut, 22 pairs of cutting functions of the tissue entered into cutting window 12 of cutter head are realized；When cutter head 22
During for grinding cutter head, cutting window 12 is set on the front end face of outer knife pipe 10, and cutter head 22 stretches out cutting window 12, to end face
Bone tissue carries out grinding treatment.
The drive mechanism is used to drive the interior knife pipe 20 to rotate and axially reciprocating.The drive mechanism includes
Interior actuator 30 and outer actuator 40.
As Figure 1-3, the interior actuator 30 in the present embodiment includes the driving section 38 of interior actuator body 36 and first.For
It is easy to description, interior actuator body 36 defined below is near-end 30a near one end of the cutting window 12, is cut away from described
The one end for cutting window 12 is distal end 30b.
The first helical duct 32 is provided with interior actuator 30, first helical duct 32 is included for making interior actuator 30
To the first helical groove 32a of first direction (i.e. right direction in Fig. 1) axial movement, for making interior actuator 30 to opposite
Second direction (i.e. left direction in Fig. 1) be axially moved the second helical groove 32b, be arranged on the first helical groove 32a
And second First Transition portion 32cs of the helical groove 32b between one end of the near-end 30a of actuator body 36 and be arranged on
Second transition of the first helical groove 32a and the second helical groove 32b between one end of the distal end 30b of actuator body 36
Portion.Preferably, the near-end of the close described interior actuator 30 of the first helical groove 32a and the second helical groove 32b
One end of 30a is interconnected, and the First Transition portion 32c is arranged on the first helical groove 32a and second spiral is recessed
Communicating position between groove 32b, the close described interior driving of the first helical groove 32a and the second helical groove 32b
One end of the distal end 30b of part 30 mutually disconnects after intersecting, and second transition part is arranged on the first helical groove 32a and institute
State the open position between the second helical groove 32b.Due to the first helical groove 32a and the other end of the second helical groove 32b
Mutually disconnect, difficulty of processing can be reduced, so as to reduce medical cutter sweep cost.And, the first helical groove 32a and
The middle part of the second helical groove 32b is intersected, so, when the rotation of interior actuator 30 turns around many, the axle of interior actuator 30
To moving back and forth once, the purpose for reducing reciprocating speed is realized.
It is further preferred that the First Transition portion 32c is to be connected to the first helical groove 32a and second spiral shell
Groove between one end of the near-end 30a of close described interior actuator 30 of rotation groove 32b, second transition part is described first
Actuator between one end of the distal end 30b of close described interior actuator 30 of helical groove 32a and the second helical groove 32b
The outer peripheral face 36a, the first helical groove 32a and the close described interior actuator of the second helical groove 32b of body 36
Seamlessly transitted between the groove bottom of one end of 30 distal end 30b and the outer peripheral face 36a of actuator body 36, so that the first sliding part 43
Smoothly slide in or out the first helical groove 32a and the second helical groove 32b.
Outer actuator 40 is set in the outside of the interior actuator 30, and the first sliding part is provided with the outer actuator 40
43.Outer actuator 40 in the present embodiment is tubular structure, and the first mounting hole 41 for extending radially through is provided with outer actuator 40,
The first sliding part 43 in the present embodiment is spherical, and the first sliding part 43 is arranged in the first mounting hole 41, is supported by front casing 62
In keeping off and snapping in the first helical groove 32a or the second helical groove 32b.First sliding part 43 and the first helical groove 32a or
To be in rolling contact between two helical groove 32b, frictional resistance is small.First sliding part 43 can also be cylindrical, or directly
First sliding part 43 is fixed on the inwall of outer actuator 40, then without mounting hole 42, for example, is set on the inwall of outer actuator 40
Put during a projection snaps in the first helical groove 32a or the second helical groove 32b.
Preferably, it is provided with first mounting hole 41 for applying the first of elastic pressure to the first sliding part 43
Elastomeric element (not shown).The first elastomeric element in the present embodiment is spring, and one end of spring is against front casing 62
On inwall, the other end is against on the first sliding part 43.First elastomeric element can cause that the first sliding part 43 is recessed with the first spiral
The cell wall of groove 32a or the second helical groove 32b is close to, and prevents the first sliding part 43 from departing from the first helical groove in sliding process
32a or the second helical groove 32b, causes drive mechanism to fail.
When the first sliding part 43 is slided along the first helical groove 32a, interior actuator 30 is driven to drive the interior knife pipe 20
It is axially moved to first direction；When the first sliding part 43 is slided along the second helical groove 32b, interior actuator 30 is driven to drive institute
State interior knife pipe 20 to be axially moved to second direction, so as to realize axially reciprocating.
When the first sliding part 43 moves to the head end (left end in Fig. 1) and the second helical groove of the first helical groove 32a
During First Transition portion 32c (see Fig. 6 C) between the head end (left end in Fig. 1) of 32b, due to First Transition portion 32c, the second mistake
Crossing does not have helical angle at portion, the first sliding part 43 easily stuck phenomenon occurs.In order to solve this problem, the drive of the embodiment of the present invention
Motivation structure also includes guiding mechanism, and guiding mechanism is used to guide first sliding part 43 to slip over First Transition portion 32c and second
Transition part, so as to avoid stuck phenomenon from occurring.
As Figure 1-3, the guiding mechanism in the present embodiment includes the second spiral being arranged on the interior actuator 30
Passage 34 and the second sliding part 45 being arranged on the outer actuator 40, the second sliding part 45 are slided along the second helical duct 34
It is dynamic, guide first sliding part 43 to slip over First Transition portion 32c and the second transition part.In the present embodiment, slided using second
Part 45 guides the first sliding part 43 to slip over First Transition portion 32c and the second transition along the structure that the second helical duct 34 is slided
Portion, stationarity is good.
Preferably, second helical duct 34 has for making what interior actuator 30 was axially moved to the first direction
3rd helical groove 34a, the 4th helical groove 34b for making interior actuator 30 be axially moved to the second direction, setting
Between one end of the distal end 30b of the close actuator body 36 of the 3rd helical groove 34a and the 4th helical groove 34b the 3rd
Transition part 34c and be arranged on the 3rd helical groove 34a and the 4th helical groove 34b close actuator body 36 near-end
The 4th transition part between one end of 30a.As shown in fig. 6, when first sliding part 43 slides into from the first helical groove 32a
During First Transition portion 32c between the first helical groove 32a and the second helical groove 32b, second sliding part
45 slide along the 3rd helical groove 34a, when first sliding part 43 slides into described first from the second helical groove 32b
During First Transition portion 32c between helical groove 32a and the second helical groove 32b, second sliding part 45 is along described
4th helical groove 34b is slided.
Preferably, the close described interior actuator 30 of the 3rd helical groove 34a and the 4th helical groove 34b
One end of distal end 30b is interconnected, and the 3rd transition part 34c is arranged on the 3rd helical groove 34a and the 4th spiral is recessed
Communicating position between groove 34b, the close described interior driving of the 3rd helical groove 34a and the 4th helical groove 34b
One end of the near-end 30a of part 30 mutually disconnects after intersecting, and the 4th transition part is arranged on the 3rd helical groove 34a and institute
State the open position between the 4th helical groove 34b.Due to one end phase of the 3rd helical groove 34a and the 4th helical groove 34b
Mutually disconnect, difficulty of processing can be so reduced, so as to reduce medical cutter sweep cost.It is further preferred that the 3rd mistake
The portion 34c of crossing is to be connected to the 3rd helical groove 34a and the close described interior actuator 30 of the 4th helical groove 34b is remote
The groove between one end of 30b is held, the 4th transition part is being close to for the 3rd helical groove 34a and the 4th helical groove 34b
The outer peripheral face 36a of the actuator body 36 between one end of the near-end 30a of the interior actuator 30, the 3rd helical groove 34a and
The groove bottom of one end of the near-end 30a of close described interior actuator 30 of four helical groove 34b and the outer peripheral face of actuator body 36
Seamlessly transitted between 36a, so that the second sliding part 45 smoothly slides in or out the 3rd helical groove 34a or the 4th helical groove
34b。
In the present embodiment, helical angle and length and second spiral shell of the first helical groove 32a of the first helical duct 32
The helical angle and equal length of rotation groove 32b, the helical angle and length of the second helical groove 32b are with the 3rd helical groove 34a's
Helical angle and equal length, i.e. the first helical duct 32 are identical with the structure of the second helical duct 34, and simply position is different.
So, when first sliding part 43 slides between the first helical groove 32a and the second helical groove 32b
During one transition part 32c, second sliding part 45 is slided along the helical groove 34b of the 3rd helical groove 34a or described 4th,
Can play a part of to be oriented to the first sliding part 43.And when the second sliding part 45 slides into the 3rd helical groove 34a and the 4th
During the 3rd transition part 34c, four transition parts between helical groove 34b, the first sliding part 43 is along the first helical groove 32a or
Two helical groove 32b are slided, and can play a part of to be oriented to the second sliding part 45, prevent the second sliding part 45 stuck.
Preferably, second sliding part 45 is spherical, and the second mounting hole for extending radially through is provided with outer actuator 40
42, second sliding part 45 is installed in the second mounting hole 42 on outer actuator 40.As an alternative, the second sliding part 45
Can be cylindrical, the second sliding part 45 can also be the projection set on outer actuator 40.
Preferably, it is provided with second mounting hole 42 for applying the second of elastic pressure to the second sliding part 45
Elastomeric element 46, the second elastomeric element 46 is spring, and one end of spring is against on the inwall of front casing 62, and the other end is against the second cunning
On moving part 45.Second elastomeric element 46 can cause the second sliding part 45 and the 3rd helical groove 34a or the 4th helical groove 34b
Cell wall be close to, prevent the second sliding part 45 from skidding off the 3rd helical groove 34a or the 4th helical groove 34b, cause guiding mechanism
Failure.
In one embodiment, the centripetal angle between first sliding part 43 and second sliding part 45 is 90 degree,
Can also be other angles.
In one embodiment, the drive mechanism also includes the 3rd elastomeric element 80, and it is right that the 3rd elastomeric element 80 is used for
The interior actuator 30 applies the elastic force to the first direction or the second direction.When the first sliding part 43 moves to
During First Transition portion 32c between one helical groove 32a and the second helical groove 32b, due to the effect of the 3rd elastomeric element 80,
So that the first sliding part 43 is close to the side wall of the first helical groove 32a or the second helical groove 32b, the first sliding part 43 is prevented
Play, departs from groove.The 3rd elastomeric element 80 in the present embodiment is spring, and spring is set in the first transmission of interior actuator 30
The outside in portion 38, one end of spring is against on the interior actuator body 36 of interior actuator 30, and the other end is against intermediate case 64
On end face.
In one embodiment, the annular of first annular boss 47 and second is provided with the outer peripheral face of the outer actuator 40
Boss 48, first mounting hole 41 and second mounting hole 42 are separately positioned on the first annular boss 47 and described
On second ring boss 48.Adopt the structure, the thickness of outer actuator 40 can be reduced, so as to mitigate weight, reduction is manufactured into
This.In order to further mitigate weight, manufacturing cost, the first annular boss 47 and/or second annular boss 48 are reduced
Outer peripheral face on be provided with some lightening recesses 49.The rear end of outer actuator 40 is provided with steam vent 44, can prevent interior driving
When part 30 is axially moved to first direction, the air of the rear side of interior actuator 30 is compressed, the resistance of motion of actuator 30 in increase.
In one embodiment, medical cutter sweep also includes main rotatable parts 50, and one end of main rotatable parts 50 is set
There is the second driving section 52, the second driving section 52 is connected with the first driving section 38 of interior actuator 30, and interior actuator 30 can
It is axially moved relative to main rotatable parts 50.Preferably, the first driving section 38 is shift fork, and the second driving section 52 is shift fork.Main biography
The other end of dynamic component 50 is provided with input connecting portion 54, and input connecting portion 54 connects with the output end of power source (such as motor)
Connect, the through hole 56 passed through for the interior knife pipe 20 is provided with main rotatable parts 50.
As shown in fig. 6, the operation principle of the medical cutter sweep in the embodiment of the present invention is as follows：
As shown in Fig. 6 (A), the direction of arrow X along Fig. 6 (A) of interior actuator 30 rotates, and the second sliding part 45 is along the 3rd spiral shell
Rotation groove 34a is slided, and the first sliding part 43 of guiding enters in the second helical groove 32b by First Transition portion 32c.Interior actuator
30 continue to rotate, and the first sliding part 43 is slided along the second helical groove 32b, drive interior actuator 30 axially to be transported to second direction
It is dynamic, now, the second sliding part 45 along the 3rd helical groove 34a tail end (i.e. right-hand member in Fig. 6 (A)) and the 4th helical groove
Slided on the outer peripheral face 36a (i.e. the 4th transition part) of the actuator body 36 between the tail end (i.e. right-hand member in Fig. 6 (A)) of 34b,
So as to guide the second sliding part 45 to pass through the 4th transition part.
See Fig. 6 (B), when the first sliding part 43 slides into the tail end (i.e. right-hand member in Fig. 6 (B)) of the second helical groove 32b,
Now, the second sliding part 45 is slided along the 4th helical groove 34b, as interior actuator 30 continues to rotate, when the first sliding part 43
Slide into the drive between the tail end of the second helical groove 32b and the tail end (i.e. right-hand member in Fig. 6 (B)) of the first helical groove 32a
The outer peripheral face 36a (i.e. the second transition part) (see Fig. 6 (C)) of moving part body 36, this time, the second sliding part 45 continues along the 4th spiral
Groove 34b is slided, so as to guide the first sliding part 43 to pass through the second transition part.
See Fig. 6 (D), the first sliding part 43 slips into the tail end of the first helical groove 32a, and the first sliding part 43 is along the first spiral
Groove 32a is slided, and drives interior actuator 30 to be axially moved (see Fig. 6 (E)) to first direction, meanwhile, guide the second sliding part 45
Pass through the 3rd transition part 34c.
In sum, the medical cutter sweep of the embodiment of the present invention, can make the sliding part in transition part smoothly transit,
Stuck phenomenon is avoided to occur, good reliability.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Shield scope.
Claims (15)
1. a kind of medical cutter sweep, including：
Outer knife pipe, cutting window is provided with outer knife pipe；
Interior knife pipe, interior knife pipe is arranged in the outer knife pipe, and interior knife pipe has cutter head；
Characterized in that, also including：
Drive mechanism, drive mechanism includes interior actuator, outer actuator and guiding mechanism, and interior actuator is passed with the interior knife pipe
Dynamic connection simultaneously drives interior knife pipe to rotate, and the first helical duct is provided with interior actuator, and outer actuator is set in the interior driving
The outside of part, is provided with the first sliding part on outer actuator, the first sliding part is slided along first helical duct, drives described
Interior actuator drives the interior knife pipe axially reciprocating, guiding mechanism to pass through described first for guiding first sliding part
The transition part of helical duct.
2. medical cutter sweep according to claim 1, it is characterised in that first helical duct is included for making institute
State the first helical groove that interior actuator is axially moved to first direction, for making interior actuator to opposite second direction axial direction
Second helical groove of motion, the First Transition being arranged between one end of one end of the first helical groove and the second helical groove
Portion and the second transition part being arranged between the other end of the other end of the first helical groove and the second helical groove, the drive
Motivation structure is used to guide first sliding part to pass through the First Transition portion and second transition part.
3. medical cutter sweep according to claim 2, it is characterised in that the guiding mechanism includes being arranged in described
The second helical duct and the second sliding part being arranged on the outer actuator on actuator, the second sliding part is along the second spiral
Passage is slided, and guides first sliding part to pass through the First Transition portion and second transition part.
4. medical cutter sweep according to claim 3, it is characterised in that second helical duct has in for making
The 3rd helical groove that actuator is axially moved to the first direction and for making interior actuator to the second direction axial direction
4th helical groove of motion；Second sliding part is slided along the 3rd helical groove or the 4th helical groove, is drawn
First sliding part is led by the First Transition portion or second transition part.
5. medical cutter sweep according to claim 4, it is characterised in that the interior actuator has near the cutting
The close institute of the near-end of window and the distal end away from the cutting window, first helical groove and second helical groove
The one end for stating interior actuator near-end is interconnected, and the First Transition portion is arranged on first helical groove and second spiral shell
The close described interior actuator distal end of the communicating position between rotation groove, first helical groove and second helical groove
One end intersect after mutually disconnect, second transition part be arranged on first helical groove and second helical groove it
Between open position.
6. medical cutter sweep according to claim 5, it is characterised in that the First Transition portion is to be connected to described the
Groove between one end of the close described interior actuator near-end of one helical groove and second helical groove, second mistake
The portion of crossing is the institute between one end of the close described interior actuator distal end of first helical groove and second helical groove
State interior actuator outer peripheral face, the one of the close described interior actuator distal end of first helical groove and second helical groove
Seamlessly transitted between the groove bottom at end and the interior actuator outer peripheral face.
7. medical cutter sweep according to claim 4, it is characterised in that second helical duct also has and is arranged on
The 3rd transition part between one end of one end of 3rd helical groove and the 4th helical groove and it is arranged on described
The 4th transition part between the other end of the other end of three helical grooves and the 4th helical groove, the first sliding part edge
First helical groove or second helical groove are slided, guide second sliding part by the 3rd transition part and
4th transition part.
8. medical cutter sweep according to claim 7, it is characterised in that the interior actuator has near the cutting
The close institute of the near-end of window and the distal end away from the cutting window, the 3rd helical groove and the 4th helical groove
The one end for stating interior actuator distal end is interconnected, and the 3rd transition part is arranged on the 3rd helical groove and the 4th spiral shell
The close described interior actuator near-end of the communicating position between rotation groove, the 3rd helical groove and the 4th helical groove
One end intersect after mutually disconnect, the 4th transition part be arranged on the 3rd helical groove and the 4th helical groove it
Between open position.
9. medical cutter sweep according to claim 8, it is characterised in that the 3rd transition part is to be connected to described the
Groove between one end of the close described interior actuator distal end of three helical grooves and the 4th helical groove, the 4th mistake
The portion of crossing is the institute between one end of the close described interior actuator near-end of the 3rd helical groove and the 4th helical groove
State interior actuator outer peripheral face, the one of the close described interior actuator near-end of the 3rd helical groove and the 4th helical groove
Seamlessly transitted between the groove bottom at end and the interior actuator outer peripheral face.
10. medical cutter sweep according to claim 4, it is characterised in that first sliding part and described second is slided
Centripetal angle between moving part is 90 degree.
11. medical cutter sweeps according to claim 4, it is characterised in that the outer actuator is tubular structure, in institute
State and the first mounting hole and the second mounting hole are provided with outer actuator, first sliding part and second sliding part are ball
Shape, first sliding part and second sliding part are separately mounted in first mounting hole and second mounting hole.
12. medical cutter sweeps according to claim 11, it is characterised in that be provided with use in first mounting hole
In the first elastomeric element for applying elastic pressure to the first sliding part, it is provided with second mounting hole for being slided to second
Moving part applies the second elastomeric element of elastic pressure.
13. medical cutter sweeps according to claim 11, it is characterised in that set on the outer peripheral face of the outer actuator
There are first annular boss and the second annular boss, first mounting hole and second mounting hole are separately positioned on described first
On annular boss and second annular boss.
14. medical cutter sweeps according to claim 13, it is characterised in that the first annular boss and/or described
Some lightening recesses are provided with the outer peripheral face of the second annular boss.
15. medical cutter sweeps according to claim 1, it is characterised in that the drive mechanism also includes being used for institute
State the 3rd elastomeric element that interior actuator applies the elastic force on axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042823.4A CN106725746B (en) | 2017-01-20 | 2017-01-20 | medical cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042823.4A CN106725746B (en) | 2017-01-20 | 2017-01-20 | medical cutting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106725746A true CN106725746A (en) | 2017-05-31 |
| CN106725746B CN106725746B (en) | 2023-08-29 |
Family
ID=58944997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710042823.4A Active CN106725746B (en) | 2017-01-20 | 2017-01-20 | medical cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106725746B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107669303A (en) * | 2017-09-30 | 2018-02-09 | 中国人民解放军第二军医大学第二附属医院 | Wire cutter |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0841036A1 (en) * | 1996-10-04 | 1998-05-13 | United States Surgical Corporation | Surgical system for tissue removal |
| CN2396780Y (en) * | 1998-06-17 | 2000-09-20 | 中国船舶工业总公司第七研究院七一六研究所一六○工厂 | Gun type cutting instrument for lumbar partial removal of vertebral disc |
| JP2003339723A (en) * | 2002-05-30 | 2003-12-02 | Kaijirushi Hamono Kaihatsu Center:Kk | Surgical knife |
| US20070055259A1 (en) * | 2005-08-17 | 2007-03-08 | Norton Britt K | Apparatus and methods for removal of intervertebral disc tissues |
| CN101919716A (en) * | 2009-06-12 | 2010-12-22 | 伊西康内外科公司 | Tetherless biopsy device with reusable part |
| CN102120052A (en) * | 2009-12-21 | 2011-07-13 | 富泰克精密注塑尼道股份有限公司 | Device for injecting a solid |
| CN104605913A (en) * | 2013-11-02 | 2015-05-13 | 重庆西山科技有限公司 | Medical grinding tool and driving assembly |
| CN204655052U (en) * | 2015-03-24 | 2015-09-23 | 武汉半边天医疗技术发展有限公司 | Multi-functional feed liquor formula attracts rotary cut device |
| CN104939891A (en) * | 2014-03-31 | 2015-09-30 | 重庆西山科技有限公司 | Self-tightening type bone drilling machine head |
| CN105636533A (en) * | 2013-08-16 | 2016-06-01 | 史密夫和内修有限公司 | Surgical instrument |
| CN106214224A (en) * | 2016-07-08 | 2016-12-14 | 周勇飞 | Peritomize, stiching instrument |
| CN206852646U (en) * | 2017-01-20 | 2018-01-09 | 重庆西山科技股份有限公司 | Medical cutter device |
-
2017
- 2017-01-20 CN CN201710042823.4A patent/CN106725746B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0841036A1 (en) * | 1996-10-04 | 1998-05-13 | United States Surgical Corporation | Surgical system for tissue removal |
| CN2396780Y (en) * | 1998-06-17 | 2000-09-20 | 中国船舶工业总公司第七研究院七一六研究所一六○工厂 | Gun type cutting instrument for lumbar partial removal of vertebral disc |
| JP2003339723A (en) * | 2002-05-30 | 2003-12-02 | Kaijirushi Hamono Kaihatsu Center:Kk | Surgical knife |
| US20070055259A1 (en) * | 2005-08-17 | 2007-03-08 | Norton Britt K | Apparatus and methods for removal of intervertebral disc tissues |
| CN101919716A (en) * | 2009-06-12 | 2010-12-22 | 伊西康内外科公司 | Tetherless biopsy device with reusable part |
| CN102120052A (en) * | 2009-12-21 | 2011-07-13 | 富泰克精密注塑尼道股份有限公司 | Device for injecting a solid |
| CN105636533A (en) * | 2013-08-16 | 2016-06-01 | 史密夫和内修有限公司 | Surgical instrument |
| CN104605913A (en) * | 2013-11-02 | 2015-05-13 | 重庆西山科技有限公司 | Medical grinding tool and driving assembly |
| CN104939891A (en) * | 2014-03-31 | 2015-09-30 | 重庆西山科技有限公司 | Self-tightening type bone drilling machine head |
| CN204655052U (en) * | 2015-03-24 | 2015-09-23 | 武汉半边天医疗技术发展有限公司 | Multi-functional feed liquor formula attracts rotary cut device |
| CN106214224A (en) * | 2016-07-08 | 2016-12-14 | 周勇飞 | Peritomize, stiching instrument |
| CN206852646U (en) * | 2017-01-20 | 2018-01-09 | 重庆西山科技股份有限公司 | Medical cutter device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107669303A (en) * | 2017-09-30 | 2018-02-09 | 中国人民解放军第二军医大学第二附属医院 | Wire cutter |
| CN107669303B (en) * | 2017-09-30 | 2024-04-16 | 中国人民解放军第二军医大学第二附属医院 | Thread cutting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106725746B (en) | 2023-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3179953B1 (en) | Force transmission mechanism for surgical instrument | |
| EP3033016B1 (en) | Surgical instrument | |
| CN106333728B (en) | The bistrique of medical grinding knife tool | |
| US11045172B2 (en) | Biopsy device | |
| JP2017526478A5 (en) | ||
| US9622756B2 (en) | Arthroscopic resection methods | |
| CN107411821A (en) | Five degree of freedom flexibility Needle-driven Robot | |
| CA2536291A1 (en) | Variable direction of view instrument with on-board actuators | |
| CN105919670A (en) | Minimally-invasive surgery assistant robot | |
| JP2012518463A5 (en) | ||
| CA2666865A1 (en) | A powerless helical locking mechanism for door | |
| CN110228354A (en) | Air outlet and vehicle including it | |
| CN206852646U (en) | Medical cutter device | |
| CN106725746A (en) | Medical cutter sweep | |
| CN206745423U (en) | Medical cutter device | |
| CN216495408U (en) | Biopsy operation device with stepless adjustable sampling window size | |
| CN106725747B (en) | Medical cutting device | |
| CN217772507U (en) | Multifunctional aspirator for surgical machine system | |
| CN102229060B (en) | Novel transmission and manual-operation double-control device of numerically-controlled motor | |
| CN101495051A (en) | Endoscopic cutting instrument with axial and rotary motion | |
| CN114404046A (en) | Multifunctional aspirator for surgical machine system | |
| CN208789939U (en) | A kind of rotary-wing transmission mechanism of unmanned plane | |
| CN109044493B (en) | Multifunctional tumor stripping scissors | |
| CN210843183U (en) | Breast biopsy device | |
| CN219763401U (en) | Power transmission structure for biopsy device and biopsy device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |