CN108852459B - Shapeable multifunctional craniocerebral artificial device - Google Patents
Shapeable multifunctional craniocerebral artificial device Download PDFInfo
- Publication number
- CN108852459B CN108852459B CN201810826148.9A CN201810826148A CN108852459B CN 108852459 B CN108852459 B CN 108852459B CN 201810826148 A CN201810826148 A CN 201810826148A CN 108852459 B CN108852459 B CN 108852459B
- Authority
- CN
- China
- Prior art keywords
- isolator
- suction
- craniocerebral
- concave ring
- shapeable
- 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.)
- Active
Links
- 230000000452 restraining effect Effects 0.000 claims abstract 2
- 210000003128 head Anatomy 0.000 claims description 43
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 9
- 210000005077 saccule Anatomy 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000006854 communication Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000010339 dilation Effects 0.000 claims description 2
- 210000005013 brain tissue Anatomy 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 9
- 230000006870 function Effects 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 13
- 230000003902 lesion Effects 0.000 description 12
- 210000001519 tissue Anatomy 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 9
- 210000004556 brain Anatomy 0.000 description 7
- 210000003811 finger Anatomy 0.000 description 7
- 238000011161 development Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 210000004204 blood vessel Anatomy 0.000 description 5
- 230000000916 dilatatory effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000002490 cerebral effect Effects 0.000 description 4
- 239000002861 polymer material Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 210000001175 cerebrospinal fluid Anatomy 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000007917 intracranial administration Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 210000005036 nerve Anatomy 0.000 description 3
- 208000035965 Postoperative Complications Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000001951 dura mater Anatomy 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001000 nickel titanium Inorganic materials 0.000 description 2
- 239000007901 soft capsule Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 235000002505 Centaurea nigra Nutrition 0.000 description 1
- 206010051290 Central nervous system lesion Diseases 0.000 description 1
- 201000008450 Intracranial aneurysm Diseases 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 241001073742 Mylopharodon conocephalus Species 0.000 description 1
- 241000287107 Passer Species 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 208000002847 Surgical Wound Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000000576 arachnoid Anatomy 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002674 endoscopic surgery Methods 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000000944 nerve tissue Anatomy 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 210000001154 skull base Anatomy 0.000 description 1
- 229910002029 synthetic silica gel Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000012800 visualization 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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1695—Trepans or craniotomes, i.e. specially adapted for drilling thin bones such as the skull
Abstract
The invention discloses a shapable multifunctional craniocerebral artificial dredger, which comprises an attractable stripping device, a concave ring, an introducing isolator and a loading sheath tube, wherein an attraction channel is arranged in the middle of the attractable stripping device, the concave ring is arranged on the pipe wall of the attractable stripping device, the introducing isolator is sleeved on the concave ring, the loading sheath tube is sleeved on the pipe wall of the attractable stripping device and used for restraining the introducing isolator in the concave ring, and an isolator pushing rod is sleeved on the concave ring and inserted in the loading sheath tube, and the far end of the isolator is propped against the tail end of the introducing isolator; the invention adopts the plastic flexible isolator in the operation process by utilizing different functions, and can naturally balance the pressure of the brain tissue in the cranium after releasing, so as to prevent the pressure of the brain tissue around the access from rising due to excessive support of the hard channel, and the introducing isolator is pushed into the focus area by the isolator pushing rod and then is applied with force, thus preventing the introducing isolator from being extruded out of a preset position.
Description
Technical Field
The invention relates to the field of medical dredging devices, in particular to a shapable multifunctional craniocerebral dredging device.
Background
The keyhole technology is a medical technology applied to minimally invasive surgery of intracranial aneurysms and other diseases. The development of the lockhole technology in China is late, and in recent decades, the lockhole technology has almost no continuous development and clinical application. With the development of medical technology and the continuous improvement of medical equipment and instruments, particularly the development of medical imaging and endoscopic equipment in recent years, the development of micro neurosurgery technology is advanced, and more cerebral neurosurgery is sequentially started to explore craniocerebral minimally invasive surgery. By matching the precise imaging equipment with the micro-neurosurgery, the combination of the endoscopic surgery and the micro-neurosurgery and the keyhole technology have been newly advanced and developed. The keyhole technology can directly reach the traumatic skull base focus through a small interface passage by scientific utilization of a ventricle system and an intracranial natural gap, so that the operation is safe and convenient.
In the keyhole technique, the aperture of the entrance is preferably about 2.5-3 cm, and the requirement of the entrance and the focus position determine the size of the aperture and the depth of penetration. Regardless of how the access is required, the basic principle of implementation is:
providing a surgical channel which minimally invasively damages the important structures of the brain tissue, and providing a space which is large enough to handle the lesions under the principle that the reconstruction channel minimally damages the brain tissue structures. But also eliminates all unnecessary injuries as far as possible, especially brain nerve tissue and brain blood vessels in the cranium.
The keyhole technology is to have corresponding access modes according to different lesions. Therefore, different access designs are adopted for different lesions, and different requirements of patients are met. The entrance of each lesion has its best drilled hole open. Otherwise, the lesion is difficult to treat in the operation process, and the damage to partial tissues is increased, so that the effect and success of the operation are affected. The surgical procedure requires that a larger space be visible from a hole or passageway, and the use of the intracranial natural space to obtain a minimally invasive surgical passageway with the operating space being more deep in the brain the farther from the hole.
In the classification of the keyhole approach, the device has a shaped shape and an unshaped shape, has different characteristics and requirements, is safe and reliable in use method and reachable effect of the craniocerebral navigation traction and communication device, and achieves good precision and compliant profiling effect in the navigation traction and communication process. The surgical wound is minimum, the postoperative effect is higher than that of the traditional operation, and the operation of operators is simple.
At present, when a keyhole operation of cerebral neurosurgery or a general access device is used in a minimally invasive operation, the access mode adopts a mode of expanding a small channel firstly and then accessing from outside or a direct access mode without expanding, and as the diameter of the access device channel is generally larger, the access device is easy to cause extrusion damage to brain tissues nearby an access way in the access process; moreover, the conventional channels are all made of hard tubular bodies, and the pressure of brain tissues around the access channel is increased due to excessive support, so that the brain tissues are damaged or complications are caused, and a flexible channel is needed to solve the problem. Conventional passers have drawbacks for demanding surgery.
Accordingly, the prior art is still in need of improvement and development.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a shapable multifunctional craniocerebral artificial access device, which aims to solve the problem that the hard intervention mode and the hard support channel mode of the existing artificial access device may cause damage to surrounding brain tissues.
The technical scheme of the invention is as follows:
the utility model provides a but multi-functional craniocerebral system leads to ware, but including the suction stripping off device that is provided with the suction passageway in the centre, but set up the concave ring on the pipe wall of suction stripping off device, the leading-in isolator of cover on concave ring, cover set up but suction stripping off device pipe wall and restraint leading-in isolator load sheath pipe in concave ring to and cover set up on concave ring and interlude load sheath pipe and the distal end supports and leans on the isolator push rod of leading-in isolator end; the lead-in spacer is a device that deforms under constraint and returns to expansion to a predetermined shape without constraint.
Further, the suction stripping device is provided with a pressure regulating control hole communicated with the suction channel.
Further, the attractable stripping device comprises an inner tube of the aspirator, a distal guide head fixedly connected to the inner tube of the aspirator, and a handheld operation handle fixedly connected to the other end of the inner tube of the aspirator;
the distal guide head is conical, flat-mouth-shaped or bullet-shaped;
the outer surface of the inner tube of the aspirator is the bottom surface of the concave ring, and the opposite side surfaces of the distal guide head and the handheld operating handle are the two side surfaces of the concave ring respectively;
the pressure regulating control hole is positioned on the handheld operation handle.
Further, the attractable stripping device comprises an aspirator inner tube, an aspirator outer tube sleeved on the aspirator inner tube and forming a filling channel with the aspirator inner tube, a distal guide head fixedly connected on the aspirator outer tube, a vent hole arranged on the distal guide head and communicated with the filling channel, an expansion saccule arranged on the distal guide head and communicated with the vent hole, and an inflation assembly communicated with the filling channel;
the outer surface of the outer tube of the aspirator is a concave ring bottom surface, and the side surface of the distal guide head is one end side surface of the concave ring.
Further, the distal guide head has a conical or bullet-shaped distal end, and the dilation balloon covers the distal guide head distal end surface.
Further, the inflation assembly comprises a hand-held operation body which is provided with a piston cavity and is communicated with the filling channel, a sealing piston capable of sliding in the piston cavity, and an inflation handle fixedly connected with the inflation sealing piston;
the hand-held operation body is fixedly connected to one side of the proximal end of the outer tube of the aspirator;
the pressure regulating control hole is positioned on the handheld operation body.
Further, a return valve assembly communicated with the piston cavity is arranged at the bottom of the charging hand-held operation body.
Further, a loading pin tube handle is fixedly connected to the proximal end side of the loading sheath tube.
Further, a pushing rod handle is fixedly connected to the tail end of the proximal end side of the isolator pushing rod.
Further, the tail end of the suction stripping device is connected with a hose joint communicated with the suction channel.
Compared with the prior art, the invention can carry out minimally invasive retraction, expansion and surgical channel making in the surgical process by utilizing different functions, and attracts bleeding, cerebrospinal fluid, cleaning fluid, tissue foreign matters and the like in the surgical process; the adoption of the plastic flexible isolator can naturally balance the pressure of the brain tissue in the cranium after the release, so as to prevent the pressure of the brain tissue around the access from rising due to excessive support of the hard channel, thereby damaging the brain tissue or causing complications. After pushing the lead-in isolator into the focus area by the isolator pushing rod, a force is applied to the lead-in isolator to prevent the lead-in isolator from being extruded out of a preset position.
Drawings
FIG. 1 is a schematic view of a first embodiment of a shapeable multifunctional craniocerebral ostomy appliance of the present invention;
FIG. 2 is a partial cross-sectional view of the first embodiment;
FIG. 3 is a schematic view of a second embodiment of a shapeable multifunctional craniocerebral ostomy appliance;
FIG. 4 is a partial cross-sectional view of a second embodiment;
FIG. 5 is an enlarged view at A of FIG. 4;
FIG. 6 is an enlarged view at B of FIG. 5;
fig. 7 is a schematic view of another distal guiding head according to the second embodiment.
In the figure: 1. an attractable stripping device; 2. a suction passage; 3. a concave ring; 4. introducing an isolator; 5. loading a sheath; 6. pushing rods of the isolator; 7. an aspirator inner tube; 8. a distal guide head; 9. a hand-held operation handle; 10. pushing a rod handle; 11. pressure regulating control holes; 12. loading a pin tube handle; 13. a hose connector; 14. an aspirator outer tube; 15. a vent hole; 16. filling the channel; 17. expanding the balloon; 18. an inflation assembly; 19. a hand-held operation body; 20. a piston cavity; 21. an inflatable sealing plug; 22. an inflatable handle; 23. and a return valve assembly.
Detailed Description
The invention provides a shapable multifunctional craniocerebral cartoon device, which provides two embodiments, wherein the two embodiments are applied to keyhole surgery of cerebral neurosurgery, and the invention is further described in detail below with reference to the accompanying drawings and examples in order to make the purposes, technical schemes and effects of the invention clearer and more definite. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
FIG. 1 is a schematic view of a first embodiment of a shapeable multifunctional craniocerebral ostomy appliance of the present invention; FIG. 2 is a partial cross-sectional view of the first embodiment; FIG. 3 is a schematic view of a second embodiment of a shapeable multifunctional craniocerebral ostomy appliance; FIG. 4 is a partial cross-sectional view of a second embodiment; FIG. 5 is an enlarged view at A of FIG. 4; FIG. 6 is an enlarged view at B of FIG. 5; fig. 7 is a schematic view of another distal guiding head according to the second embodiment.
Embodiment one:
as shown in fig. 1 and 2, the invention provides a shapable multifunctional craniocerebral artificial ventilation device, which comprises an attractable stripping device 1, a concave ring 3, an introduction isolator 4, a loading sheath 5 and an isolator pushing rod 6, wherein the middle of the attractable stripping device 1 is provided with an attraction channel 2, the concave ring 3 is arranged on the pipe wall of the attractable stripping device 1, the introduction isolator 4 is sleeved on the concave ring 3, the loading sheath 5 is sleeved on the pipe wall of the attractable stripping device 1 and constrains the introduction isolator 4 in the concave ring 3, the isolator pushing rod 6 is sleeved on the concave ring 3 and inserted in the loading sheath 5, the distal end of the isolator pushing rod abuts against the tail end of the introduction isolator 4, and the introduction isolator 4 is a device which is constrained to deform and unconstrained to restore to expand to a preset shape.
The isolator pusher 6 is disposed at the proximal end of the loading sheath 5, has the same outer diameter as the inner diameter of the loading sheath 5, and can be pushed forward by an external force to slide, thereby pushing the introduction isolator 4 forward. The purpose of the isolator push rod 6 is to accurately position the position of the leading-in isolator 4; when the distal end of the attractable stripping device 1 reaches the focus target area, the loading sheath 5 is withdrawn to start releasing the guide isolator 4, the guide isolator is radially expanded and axially retracted due to the self-expansion characteristic of the guide isolator, and the guide isolator 4 is compressed on the loading sheath 5, so that a certain friction force is formed between the self-expansion force and the inner wall of the sheath; when the loading sheath 5 moves proximally, the axial direction of the introducing isolator 4 will retract, and under the combined action of the friction force of the introducing isolator and the inner wall of the sheath, the introducing isolator 4 will be driven to generate axial displacement away from the focus area, and the intracranial pressure of brain may also squeeze out of the introducing isolator 4; in order to reduce the influence of the displacement on the accurate positioning of the lead-in isolator 4, the lead-in isolator 4 is released by the proximal movement of the loading sheath 5, and meanwhile, the isolator pushing rod 6 is manually moved to the distal end, so that the non-ideal displacement generated by the lead-in isolator 4 is counteracted, the lead-in isolator 4 is ensured to enter an accurate channel position, the damage to cranium tissue caused by the re-displacement is reduced, the distance between the lead-in isolator 4 and a lesion range is within an ideal range, and the effects of accurate positioning and accurate in-place are achieved.
As shown in FIG. 2, the loading sheath 5 is a medical tubing that is scaled by a set of outer surfaces of unequal diameters and lengths. The length dimension is 60 mm to 150 mm seven specifications (specification numbers are respectively 60, 80, 90, 100, 110, 130 and 150), the diameter dimension is 4 mm to 12 mm seven specifications (specification numbers are respectively 4, 5, 6, 7, 9, 10 and 12), and different length and diameter combinations are selected according to the requirements of the making space.
The loading sheath 5 can use medical metal materials such as stainless steel 301L, 314 and 316, nickel titanium pipe, titanium metal pipe and the like or medical polymer materials such as PE\PEEK\PU\PVC, and the outer surface is marked with scales of embedded depth. The proximal end of the loading sheath 5 is fixedly connected with a loading pin handle 12, and when the loading sheath 5 is pushed, the loading pin handle 12 can be pressed by a finger, so that the loading sheath 5 is easier to be forced and pushed.
The lead-in isolator 4 comprises a framework composed of memory metal and a coating film layer coated inside or outside the framework, and the framework manufacturing material of the lead-in isolator 4 is medical special metal material or medical high polymer material and has memory property, such as nickel-titanium alloy wire, PU/PE and the like. The introduction spacer 4 is restored to be expanded to a predetermined shape such as a cylindrical shape, a lower cone shape, an upper cone shape, a cylindrical shape with an elliptical cross section, a waist drum shape or a rectangular shape. The lead-in separator 4 may also be referred to as a self-expanding embedded type access separator, which may deform under constraint and recover shape without constraint, may be irregularly shaped under certain conditions, and the outer or inner surface of the lead-in separator 4 is coated with a film layer having elastic and profiling properties and being smooth and transparent or non-transparent.
As shown in fig. 1, the suction stripping device 1 is made of medical metal materials such as stainless steel 304L, 314, 316, etc. or medical polymer materials such as pe\pu\pve, etc., in this embodiment, the suction stripping device 1 includes an inner tube 7 of a suction device, a distal guide head 8 fixedly connected to the end of the inner tube 7 of the suction device by threads, the distal guide head 8 is conical or flat-mouth-shaped, the tip or side of the distal guide head 8 is the opening position of the suction channel 2, the suction channel 2 can be set to one or more, in this embodiment, one suction channel 2 penetrates the inner tube 7 of the suction device, the suction channel 2 can be connected with an external negative pressure suction device by a hose and smoothly suck various liquids in brain lesions and channels, and the tip part should have a certain hardness and good elasticity, so that the suction device is easy to strip and not damage brain tissues.
The proximal end of the inner tube 7 of the aspirator is integrally formed with a handheld operation handle 9, the handheld operation handle 9 is used for facilitating the hand holding during the operation, the outer surface of the inner tube 7 of the aspirator is the bottom surface of the concave ring 3, the opposite side surfaces of the distal guide head 8 and the handheld operation handle 9 are the side surfaces of the two ends of the concave ring 3 respectively, the pushing rod 6 of the isolator is in sliding fit on the outer wall of the inner tube 7 of the aspirator, the loading sheath 5 is in sliding fit on the outer wall of the pushing rod 6 of the isolator, the tail end of the proximal end side of the pushing rod 6 of the isolator is fixedly connected with a pushing rod handle 10, and when the pushing rod 6 of the isolator is pushed, the pushing rod handle 10 can be pressed by fingers, so that the pushing rod 6 of the isolator is easier to be forced to push; the length of the concave ring 3 between the tail end of the isolator pushing rod 6 and the distal guide head 8 can be embedded into the leading-in isolator 4 with different sizes and shapes; when the leading-in isolator 4 is restrained by the loading sheath 5 to reach the position of the cranium, the distal guide head 8 reaches the position of the opening, the loading sheath 5 slides proximally to release the leading-in isolator 4, and the isolator pushing rod 6 is pushed by hands to the distal guide head 8, so that the position of the leading-in isolator 4, which is separated from the concave ring 3, is fixed at a preset position, and a force is applied to the leading-in isolator 4, so that the leading-in isolator 4 is prevented from being extruded to the preset position due to the internal pressure extrusion of the cranium and the friction of the inner wall of the loading sheath 5.
The hand-held operation handle 9 is provided with a pressure regulating control hole 11, the pressure regulating control hole 11 is communicated with the suction channel 2, in the operation process, blood, cerebrospinal fluid, cleaning fluid, peeled foreign matters and the like around the access are required to be sucked out of the body through a distal end port through the suction channel 2, so that a clear working surface and a channel are formed, and in the suction process, an operator presses the position of the pressure regulating hole by fingers to control the suction force; when the tissue is entered into a complex tissue, the suction force is regulated according to the structure of the tissue, and when the negative pressure is too high, part of nerves or blood vessels can be damaged due to the too high suction force. The pressure regulating control hole 11 is pressed by the operator with the thumb to prevent partial damage of brain tissue from being caused during the aspiration operation.
A hose connector 13 is fixedly connected to the proximal end of the introduction isolator 4, the hose connector 13 is communicated with the suction channel 2, and the hose connector 13 can be conveniently connected with an external suction device.
Example two
As shown in fig. 3, 4 and 5, the difference between the second embodiment and the first embodiment is that the suction stripping device 1 includes a suction inner tube 7, a suction outer tube 14 is sleeved outside the suction inner tube 7, a gap is left between the inner wall of the suction outer tube 14 and the outer wall of the suction inner tube 7, the gap is a filling channel 16, a distal end guiding head 8 is connected to the distal end of the suction outer tube 14 through threads, a vent hole 15 is formed in the distal end guiding head 8, the vent hole 15 is communicated with the filling channel 16, and an expanding balloon 17 which is fixedly connected to the distal end guiding head 8 and is communicated with the vent hole 15. The dilating balloon 17 may be inserted and bound or adhered to the distal end portion of the suction stripper 6-1, the dilating balloon 17 may be inflated with a liquid or gas via the external inflation channel 16, and when the liquid or gas is inflated into the balloon, the dilating balloon 17 is inflated with the liquid or gas, and the inflation size is controlled by the flow rate of the inflation. The expansion sacculus 17 also has certain elasticity when filling, and when external force has certain constraint, the expansion sacculus 17 does not continue to expand on the constraint surface, and the force can naturally and correspondingly transfer to the part with no constraint or small constraint force, so that the expansion sacculus 17 has corresponding profiling function to a certain extent, namely when the channel is expanded, the partial nervous system or the blood vessel cannot be excessively stripped and pulled to cause damage.
The expanding saccule 17 is made of medical high polymer material, and has good draft ratio and tensile elasticity, such as synthetic silica gel, natural latex, high elasticity PU, etc.
The structure of the distal guide head 8 has two forms, that is, a structure in which the distal guide head 8 is a combination of a cylindrical shape and a conical end shape as shown in fig. 7, the vent hole 15 of the structure is located on the cylindrical surface, and the dilating balloon 17 is also fixedly covered on the cylindrical surface, but the end of the structure is not covered with the dilating balloon 17, and is a hard distal end, and the hard distal end is in contact with brain tissue, so that there is a risk of damaging the brain tissue.
As shown in fig. 4 and 5, the second structure of the distal guide head 8 is that only the conical or bullet-shaped end is provided, the expanding balloon 17 covers the surface of the distal end of the distal guide head 8, one end of the expanding balloon 17 is fixedly pressed on the outer wall of the distal guide head 8 by a pressing ring, and the other end enters the suction channel 2 and is pressed on the inner wall of the suction channel 2 by the inner tube 7 of the suction device. The second type compares with the first structure, the distal end position changes from original hard head to soft capsule into a soft distal end guiding head 8 that the guiding head and capsule are combined into a whole, the distal end guiding head 8 is bullet-shaped, the surface wraps up the expandable soft capsule, this improvement brings two benefits: firstly, the expansion saccule 17 of the distal guide head 8 is a soft saccule body, replaces the hard distal end to contact with brain tissue, and further reduces the damage to the brain tissue. When gradually deepening deep cranium, the brain tissue can be inflated through the outside to form a balloon to flexibly expand cranium tissue, so that deep working channel cavities are formed until lesion targets or areas are reached; secondly, the distal guide head 8 and the saccule part are combined, so that the distance between the isolator and the focus is reduced, dead angles and blind ends at the detection position are not caused, and the operation of operators is facilitated; the second configuration is therefore preferred for the distal guide head 8 of this embodiment.
The method of the shapable multifunctional craniocerebral opening device adopting the expansion saccule 17 when being used for opening is a far-end direct expansion type, which is a safe opening new method for craniocerebral operation, and can protect the nerves and touching blood vessels of the contacted brain tissue under the gradual expansion of a flexible body, thereby avoiding postoperative complications.
An inflation assembly 18 is connected with the filling channel 16, the inflation assembly 18 is generally arranged outside the aerator, the inflation assembly 18 outside is operated by another operator to inflate the expansion balloon 17, the structure adopted in the embodiment is integrated, the inflation assembly 18 is fixedly connected with the proximal end side of the outer tube 14 of the aspirator, the inflation assembly 18 is communicated with the filling channel 16, and the inflation assembly 18 can directly press gas into the filling channel 16 after being pressed by fingers so as to expand the expansion balloon 17; the bottom surface of the concave ring 3 formed on the outer surface of the outer pipe 14 of the aspirator, the side surface of the distal guide head 8 and the side surface of the inflation assembly 18 form the side surface of the concave ring 3, the isolator push rod 6 is in sliding fit on the outer wall of the outer pipe 14 of the aspirator in the concave ring 3, and the loading sheath 5 is in sliding fit on the outer wall of the isolator push rod 6.
The inflation assembly 18 comprises a hand-held operation body 19 integrally formed with the outer tube 14 of the aspirator, the inner cavity of the hand-held operation body 19 is provided with a piston cavity 20, the piston cavity 20 is communicated with the filling channel 16, an inflation sealing plug 21 is hermetically slipped in the piston cavity 20, the inflation sealing plug 21 can continuously press and draw out gas from the expansion saccule 17 through the piston cavity 20 in a piston motion, an inflation handle 22 is connected to the inflation sealing plug 21 in a clamping manner, and the inflation handle 22 can facilitate the pressing and lifting operation of fingers; when the craniocerebral tissue is made, an operator holds the hand-held operation body 19, and can automatically control the inflation measurement according to the required expansion speed and the size of the canal making, so that the canal making size can be conveniently, quickly and safely controlled. Due to single-hand control, the stability and accuracy of operation are improved for a user, the safety of the operator in operation is greatly improved, and postoperative complications are reduced.
An air return valve assembly 23 communicated with the piston cavity 20 is arranged at the bottom of the handheld operation body 19 so as to prevent vacuum generated by slow air leakage in the air inflation assembly 18, and the air inflation handle 22 cannot return due to internal and external pressure difference, so that the operation cannot be performed normally; when the air charging handle 22 is not in the pressing state, the air charging handle should return to the specified position, if the return point is far from the specified position, a finger is used for pressing the air return valve port switch, so that external air enters the piston cavity 20, the internal pressure and the external pressure are balanced, the air charging sealing plug 21 can be easily lifted, and the normal working position of the air charging handle 22 can be manually restored.
The pressure regulating control hole 11 in this embodiment is provided on the hand-held operation body 19 and is communicated with the suction channel 2, and when the shapeable multifunctional craniocerebral artificial through device is used for making a through, blood, cerebrospinal fluid, cleaning fluid, peeled foreign matters and the like around the access are sucked out of the body through the distal end port, so that a clear working surface and channel are formed. When the tissue is entered into a complex tissue, the suction force is regulated according to the structure of the tissue, and when the negative pressure is too high, part of nerves or blood vessels can be damaged due to the excessive suction force. The operator can press the control hole by thumb to control the suction force, so as to prevent partial damage of brain tissue during the suction operation.
The using process of the shapeable multifunctional craniocerebral opening device comprises the following steps: after the proper keyhole surgery is selected and determined, the patient is accurately designed with access. Form of the hole: the access hole is generally determined to be within 2.5 cm, which minimizes the damage to traction. According to the condition requirement of pathological changes, the access channel expands the operation range as much as possible, increases the lockhole amplifying effect and minimizes the operation wound.
The dura mater and the arachnoid mater are cut by a special appliance, and the stripping suction mode or the asymptotic expansion suction mode access is determined according to the lesion type. And an access isolator with an ideal proper size and shape is selected, and the shapable multifunctional craniocerebral artificial access device of the embodiment passes through the selected keyhole access to open the soft brain tissue in a mode of stripping suction or gradual expansion suction and enters the brain to reach the lesion area of the patient.
The shapeable multifunctional craniocerebral catheter can suck the liquid at the periphery bottom through the suction channel 2 at any time, press the pressure regulating control hole 11 with fingers, and adjust the suction force according to the actual situation.
The scale on the loading sheath 5 provides a good reference for the judgment of the depth of introduction, and after confirming that the lesion site has been entered into the pre-operative lesion site by the visualization through a neuroendoscope or a microscopic outside scope, the release of the introduction isolator operation is started: the loading sheath 5 is slowly withdrawn, and the separator pushing rod 6 is alternately and lightly pushed, so that the introducing separator 4 is slowly expanded and expanded from the loading sheath 5, and along with the complete withdrawal of the loading sheath 5, the introducing separator 4 is completely expanded and applied, and simultaneously the attractable stripping device 1 is separated, and the locked operable lesion area is expanded.
When the loading sheath 5 is withdrawn, the introducing isolator 4 is released to a certain position, that is, the distal end of the loading sheath 5 reaches the cerebral dura mater, whether the position of the introducing isolator 4 is offset is proper or not is determined again, and the introducing isolator 4 cannot be offset due to the conditions of negative pressure in the brain and the like by slightly pushing the isolator pushing rod 6. If the operation is not correct, the loading sheath 5 can be reintroduced into the process to adjust and position again.
After the proper position of the focus is determined, the loading sheath 5 is completely withdrawn, the isolator 4 is led to be gradually released, the purpose of keyhole access is realized after the isolator is expanded to the selected size and shape, the suction stripping device 1 is withdrawn immediately, the outer left edge of the brain of the isolator is fixed, and the whole keyhole access channel access is completed.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (10)
1. The shapeable multifunctional craniocerebral ostomy appliance is characterized by comprising an attractive stripping device with an attractive channel in the middle, a concave ring arranged on the pipe wall of the attractive stripping device, an introduction isolator sleeved on the concave ring, a loading sheath sleeved on the pipe wall of the attractive stripping device and restraining the introduction isolator in the concave ring, and an isolator pushing rod sleeved on the concave ring and inserted in the loading sheath and the distal end of which abuts against the tail end of the introduction isolator; the lead-in isolator is a device which is constrained to deform and unconstrained to restore to expand to a preset shape;
the isolator pushing rod is arranged at the proximal end of the loading sheath and can be pushed by external force to slide, after the distal end of the attractable stripping device reaches a focus target area, the leading-in isolator is released by withdrawing the loading sheath, and meanwhile, the isolator pushing rod moves distally to offset the non-ideal displacement generated by the leading-in isolator, wherein the non-ideal displacement is axial displacement away from the focus area under the combined action of axial retraction of the leading-in isolator and friction force of the loading sheath Guan Nabi.
2. The shapeable multifunctional craniocerebral catheter of claim 1, wherein the suction stripping device is provided with a pressure regulating control hole communicated with the suction channel.
3. The shapeable multifunctional craniocerebral catheter of claim 2, wherein the suction stripping device comprises an inner suction tube, a distal guide head fixedly connected to the inner suction tube, and a hand-held operation handle fixedly connected to the other end of the inner suction tube;
the distal guide head is conical, flat-mouth-shaped or bullet-shaped;
the outer surface of the inner tube of the aspirator is the bottom surface of the concave ring, and the opposite side surfaces of the distal guide head and the handheld operating handle are the two side surfaces of the concave ring respectively;
the pressure regulating control hole is positioned on the handheld operation handle.
4. The shapeable multifunctional craniocerebral catheter of claim 2, wherein the suction stripping device comprises a suction inner tube, a suction outer tube sleeved on the suction inner tube and forming a filling channel with the suction inner tube, a distal guide head fixedly connected on the suction outer tube, a vent hole arranged on the distal guide head and communicated with the filling channel, an expansion saccule arranged on the distal guide head and communicated with the vent hole, and an inflation assembly communicated with the filling channel;
the outer surface of the outer tube of the aspirator is a concave ring bottom surface, and the side surface of the distal guide head is one end side surface of the concave ring.
5. The shapeable multi-function craniocerebral catheter of claim 4, wherein the distal guide head tip is conical or bullet-shaped, and the dilation balloon covers the distal guide head tip surface.
6. The shapeable multi-functional craniocerebral catheter of claim 4, wherein the inflation assembly includes a hand-held operating body having a piston cavity and in communication with the inflation channel, an inflatable sealing plug slidably movable in the piston cavity, and an inflation handle fixedly attached to the inflatable sealing plug;
the hand-held operation body is fixedly connected to one side of the proximal end of the outer tube of the aspirator;
the pressure regulating control hole is positioned on the handheld operation body.
7. The shapeable multi-functional craniocerebral ostomy of claim 6, wherein a bottom portion of the hand-held operating body is provided with a return air valve assembly in communication with the piston cavity.
8. The shapeable multifunctional craniocerebral catheter of claim 1, wherein a loading pin handle is fixedly connected to the proximal side of the loading sheath.
9. The shapeable multifunctional craniocerebral catheter of claim 1, wherein a push rod handle is fixedly connected to the distal end of the proximal side of the spacer push rod.
10. The shapeable multi-functional craniocerebral ostomy appliance of claim 1, wherein the distal end of the suction stripping means is connected with a hose connector in communication with the suction channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826148.9A CN108852459B (en) | 2018-07-25 | 2018-07-25 | Shapeable multifunctional craniocerebral artificial device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826148.9A CN108852459B (en) | 2018-07-25 | 2018-07-25 | Shapeable multifunctional craniocerebral artificial device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108852459A CN108852459A (en) | 2018-11-23 |
| CN108852459B true CN108852459B (en) | 2024-01-30 |
Family
ID=64304876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810826148.9A Active CN108852459B (en) | 2018-07-25 | 2018-07-25 | Shapeable multifunctional craniocerebral artificial device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108852459B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201958929U (en) * | 2010-12-30 | 2011-09-07 | 孙波 | Medical brain-tissue passage-manufacturing device |
| WO2014083559A1 (en) * | 2012-11-30 | 2014-06-05 | Hdh Medical Ltd | Vascular occluding device and methods of use |
| CN205729432U (en) * | 2015-12-30 | 2016-11-30 | 先健科技(深圳)有限公司 | Pusher and induction system |
| CN106943179A (en) * | 2017-03-10 | 2017-07-14 | 王艳红 | Exchange device is made in a kind of cranium brain navigation traction |
| CN209136770U (en) * | 2018-07-25 | 2019-07-23 | 深圳市远为医疗技术有限公司 | A kind of multi-functional cranium brain of shaping makes logical device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7001378B2 (en) * | 1998-03-31 | 2006-02-21 | Innercool Therapies, Inc. | Method and device for performing cooling or cryo-therapies, for, e.g., angioplasty with reduced restenosis or pulmonary vein cell necrosis to inhibit atrial fibrillation employing tissue protection |
| US7655021B2 (en) * | 2003-03-10 | 2010-02-02 | Boston Scientific Scimed, Inc. | Dilator with expandable member |
| US7803150B2 (en) * | 2004-04-21 | 2010-09-28 | Acclarent, Inc. | Devices, systems and methods useable for treating sinusitis |
-
2018
- 2018-07-25 CN CN201810826148.9A patent/CN108852459B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201958929U (en) * | 2010-12-30 | 2011-09-07 | 孙波 | Medical brain-tissue passage-manufacturing device |
| WO2014083559A1 (en) * | 2012-11-30 | 2014-06-05 | Hdh Medical Ltd | Vascular occluding device and methods of use |
| CN205729432U (en) * | 2015-12-30 | 2016-11-30 | 先健科技(深圳)有限公司 | Pusher and induction system |
| CN106943179A (en) * | 2017-03-10 | 2017-07-14 | 王艳红 | Exchange device is made in a kind of cranium brain navigation traction |
| CN209136770U (en) * | 2018-07-25 | 2019-07-23 | 深圳市远为医疗技术有限公司 | A kind of multi-functional cranium brain of shaping makes logical device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108852459A (en) | 2018-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10820927B2 (en) | Apparatus and methods for accessing and sealing bodily vessels and cavities | |
| US11058851B2 (en) | Dilation delivery system for a medical device | |
| US11517295B2 (en) | Methods and devices for fallopian tube diagnostics | |
| US10967149B2 (en) | Apparatus and method for everting catheter for uterine access for biopsy and cytology | |
| US20100145224A1 (en) | Canal dilation device | |
| EP2382923A1 (en) | Pressure/vaccum actuated biopsy device | |
| US20080077054A1 (en) | Cervical dilator and methods of use | |
| US20050055043A1 (en) | Cervical canal dilator | |
| US20150142045A1 (en) | Apparatus and methods for accessing and sealing bodily vessels and cavities | |
| JP6518784B2 (en) | Apparatus for generating a local vacuum at the distal end of a sampling device | |
| CN112790836A (en) | Balloon channel device and operation channel building method | |
| US20160128729A1 (en) | Devices and methods for manipulating bodily tissue | |
| CN108498062B (en) | Enteroscope saccule | |
| IL267194B2 (en) | Brush biopsy device, kit and method | |
| CN108852459B (en) | Shapeable multifunctional craniocerebral artificial device | |
| CN209136770U (en) | A kind of multi-functional cranium brain of shaping makes logical device | |
| US20200330082A1 (en) | Endoscopic Cannula for Fallopian Tube Access | |
| CN210931681U (en) | Multifunctional visible craniocerebral artificial device | |
| CN111714078B (en) | Female expanding device, placement device of female expanding device and use method of female expanding device | |
| CN211409279U (en) | Balloon passage device | |
| CN214208300U (en) | Neural scope channel that can wash field of vision with low pressure | |
| CN213098178U (en) | Brain puncture device | |
| CN112773422A (en) | Self-expanding guiding device for craniocerebral endoscopic surgery and operation method thereof | |
| CN116600835A (en) | Retractable recoil apparatus | |
| CN115462846A (en) | Reusable laparoscopic surgery instrument |
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 |