CN105615933A - Brain distracter and manufacturing method thereof - Google Patents
Brain distracter and manufacturing method thereof Download PDFInfo
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- CN105615933A CN105615933A CN201610189814.3A CN201610189814A CN105615933A CN 105615933 A CN105615933 A CN 105615933A CN 201610189814 A CN201610189814 A CN 201610189814A CN 105615933 A CN105615933 A CN 105615933A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0293—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with ring member to support retractor elements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
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Abstract
The invention provides a brain distracter and a manufacturing method thereof. The brain distracter comprises a distracter body and a fixing device. The distracter body comprises a distraction piece and an adjusting disc arranged on the outer side of the distraction piece in a sleeving mode. The fixing device comprises a connecting block, a connecting rod and a connecting clamp. The connecting block is connected with an outer cylindrical surface of the distraction piece. The connecting block is rotationally connected with one end of the connecting rod through a first rotating shaft. The axis of the first rotating shaft is perpendicular to the axis of the distraction piece. The other end of the connecting rod is rotationally connected with the connecting clamp through a second rotating shaft. The axis of the second rotating shaft is parallel to the axis of the distraction piece. The connecting clamp comprises an upper clamping plate, a lower clamping plate and a screw. The upper clamping plate is provided with a threaded hole which in screw connection with a screw. The lower end of the screw is fixedly connected with a pressing head. According to the brain distracter, the angle of the distracter body around the Y axis can be adjusted inside an X-Z plane, the angle of the distracter body around the Z axis can be adjusted inside an X-Y plane, and the length of the connecting rod is adjusted; a doctor can select a proper skull to be clamped, the brain distractor is firmly fixed, and operation is facilitated.
Description
Technical field
The invention belongs to technical field of medical instruments, it is specifically related to a kind of brain dilator and its preparation method.
Background technology
Owing to brain deep and Intraventricular tumour or blood vessel lesion locations are dark, complex structure, arriving focus region in operation has to enter the clinical operations such as road through cortex Zao Louru road, transcallosal-interforniceal approach and triangular space and enter road. Current brain surgery, Neurological Surgery circle are known as into road complexity for the operation in this region, and surgical procedure is difficult, art district anthemorrhagic difficulty and entirely to cut rate not high.
Needing to make fistula from cortex region in brain deep and Intraventricular surgical procedure, then deep is carried out specific aim operation after must retracting and fixing by cerebral tissue again. Surgical effect is played most important effect by the process (namely entering brain deep or the process in ventricles of the brain district by cortical surface) exposing focus, because the visual field exposed can make operation become very directly perceived, excision waits operation more targeted, stops blooding and also will become to be easy to around art district. Therefore, it is one of important factor determining surgical effect for the dilator of auxiliary brain deep and Intraventricular tumour or the excision of blood vessel pathology.
Chinese utility model patent CN204445793U discloses a kind of practical plasticity-nerve endoscope servicesubway, comprise pipe body and pipe box, described pipe body is built in described pipe box, described pipe box wraps up described pipe body completely, described pipe body is made by after the medical film sterilization discarded, cutting is bending, and described pipe box is made with aseptic elastomeric material. The utility model is drawn materials convenient, simple for production, and cost is lower, alleviates the economical load of patient, very practical. And for example Chinese utility model patent CN202843673U discloses the auxiliary dilator of a kind of endoscopic surgery, comprise two dilator pin, the cross section of described two dilator pin is the semicircle that radius size is the same, and the semicircular opening of two dilator cross sections is relative; The top of described two dilator pin is provided with the opening regulating mechanism of control two dilator pin foldings, and is respectively equipped with the abduction adjustment structure of control dilator foot bottom openings of sizes at each dilator pin top. The utility model forms a periphery does not have important feature, and can suitably regulate the gap between dilator pin. For another example Chinese invention patent CN104434233A relates to a kind of brain self-retaining retractor, and what comprise U-shaped elasticity bar and be arranged on U-shaped elasticity boom end retracts leaf, and the middle part of U-shaped elasticity bar is provided with fixing and locking device. Present configuration is scientific and reasonable, easy to operate, good fixing effect, and doctor can grasp brain as required and retract size, and exposure surgical field of view is opened in support, convenient operation, it is to increase the security of operation. But above-mentioned several dilators all do not arrange stationary installation, Medical personnel hand is needed to hold up fixing or peripheral hardware stationary installation in operation, it may also be useful to inconvenience. For solving the fixation problem of dilator, Chinese utility model patent CN202892016U discloses a kind of Multifunctional brain deep dilator, it is provided with the support open loop sheet comprising the first ring plate and the 2nd ring plate, and described support open loop sheet is hollow important actor shape when the first ring plate and the 2nd ring plate are closed up; The near-end of the first described ring plate and the 2nd ring plate is respectively provided with a release handle, and two described release handles are hinged in rear end and hinged place is provided with general-purpose interface. The utility model is connected on the automatic retractor base of annular by described general-purpose interface, helps dilator of the present utility model high up in the air fixing. But require during operation that dilator is relative with skull fixing, if using automatic retractor base, so this automatic retractor base still needs to be fixedly connected with skull by stationary installation, therefore the utility model does not solve the fixation problem of dilator yet completely, and above-mentioned several dilators all do not set up the devices such as cleaning, attraction, illumination, surgical procedure inevitably has active hemorrhage, if not in time clean, visual area can be caused unclear, affect surgical effect.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of rational in infrastructure, convenient fixing, can the brain dilator that regulates of multi-angle and its preparation method.
For solving the problems of the technologies described above, embodiments of the invention provide a kind of brain dilator, comprise dilator main body and stationary installation, the support that described dilator main body comprises adjustment dish, at least two panels opening is oppositely arranged is hacked, described adjustment dish is set in the outside supportted and hack, and adjustment dish is provided with the opening regulating structure hacking the dilator opening size enclosed by support for regulating;
Described stationary installation comprises and connects block, union lever and Connection Card folder, the outer cylinder that described connection block hacks with wherein one support is connected, described connection block is connected by the first axis of rotation with one end of union lever, the axes normal that the axis of described first rotating shaft hacks with support, the other end of described union lever is connected by the 2nd axis of rotation with Connection Card folder, the axis being parallel that the axis of described 2nd rotating shaft hacks with support;
Described Connection Card folder comprises clamp, lower clamp and screw rod, and described upper clamp is provided with and the threaded hole that screw rod spiral shell connects, and the lower end of described screw rod is fixed with pressure head.
Preferably, described pressure head being coated with rubber pad, the upper surface of described lower clamp is covered with rubber layer, Connection Card mounting board is to, on skull, damaging skull; Described union lever is expansion link, and its length is adjustable in 1 ~ 5cm.
Said structure, described connection block can be fixedly connected with the outer cylinder that support is hacked, it is also possible to detachable connection, can dismantle when not needing stationary installation.
The axial location that above-mentioned connection block can also be designed to hack outer cylinder along support is adjustable.
Adjustable for realizing connecting the axial location of block, following several structure can be adopted: the inner side of a, described connection block is provided with guide block, the outer cylinder that described support is hacked is provided with the axially extended chute matched with guide block, slight interference can coordinate between guide block and chute, connection block slightly firmly just can be made to hack slip along support. The inner side of b, described connection block is provided with magnet, and the outer cylinder that described support is hacked is provided with axially extended metal strip; Or metal block is set in the inner side connecting block, the outer cylinder that support is hacked arranges magnetic stripe. The inner side of c, described connection block is provided with minor axis, and the plurality of receptacles being provided with and arranging vertically is hacked in described support, and jack is positioned at and hacks 1/4 ~ 3/4 region, bottom apart from support.
Preferably, described dilator main body comprises support described in two panels and hacks, wherein supportting the opening portion hacked described in one is arranged in the opening supportting described in another and hacking, and is connected, between the outer cylinder that the dual-side that the described support in outside is hacked hacks with the support in inner side, the spring that is in compressed state always respectively;
The variable range of described dilator opening is 1 ~ 3cm;
Described adjustment dish is U shape structure, and described opening regulating structure is the adjusting bolt assembly of the arm end being located at U shape adjustment dish, namely comprises bolt, and the nut that spiral shell connects with it after bolt-through two-arm.
Further, support described in two is hacked to be and is had elastic arc-shaped structure, and the external diameter that the internal diameter that the described support being positioned at outside is hacked hacks with the support being positioned at inner side is equal.
Described dilator main body can also adopt following structure: described adjustment dish is circular ring structure, support described in two is hacked as the identical semi arch structure of radius, the outside that each described support is hacked is provided with an opening regulating structure, described opening regulating structure comprises the threaded hole that is opened on adjustment dish, head hacks the bolt that outer cylinder is fixedly connected with support, and described bolt and threaded hole spiral shell connect;
The variable range of described dilator opening is 1 ~ 3cm.
Above-mentioned brain dilator is also provided with attraction device, it comprises suction pump and attracts pipe, wherein support the sidewall hacked described in one and it is provided with axially extended attraction card groove, described attraction pipe clamp is located at and is attracted in card groove, the interior side-lower hacked to support after the described attraction lower end bending of pipe extends to the bottom of brain dilator, and described suction pump is connected the upper end of pipe with attracting.
In said structure, attract card groove can open the inner side-wall hacked in support, it is also possible to open at outer side wall; Opening when inner side-wall, through supportting the sidewall hacked after attracting the upper end bending of pipe, open when outer side wall, the sidewall hacked through support after attracting the lower end bending of pipe extends internally. The optional vacuum suction machine of described suction pump.
Above-mentioned brain dilator is also provided with washing unit, it comprises cleaning water pipe and water receiver, wherein support the sidewall hacked described in one and it is provided with axially extended cleaning card groove, described wash tube is arranged in cleaning card groove, the interior side-lower hacked to support after the lower end bending of described wash tube extends to the bottom of brain dilator, and described water receiver is connected with the upper end of wash tube.
In said structure, cleaning card groove can open the inner side-wall hacked in support, it is also possible to opens at outer side wall; Opening when inner side-wall, through supportting the sidewall hacked after the upper end bending of wash tube, open when outer side wall, the sidewall hacked through support after the lower end bending of wash tube extends internally. Described water receiver can select rubber bag with water, syringe, or the combination of water tank and water pump.
The embodiment of the present invention also provides the preparation method of a kind of described brain dilator, and the support of described brain dilator is hacked, adjustment dish, stationary installation are titanium alloy light, poor thermal conductivity, and the preparation method of described brain dilator comprises the steps:
(1) titanium alloy material through ingot casting, anneal, be forged into titanium alloy bar;
(2) titanium alloy bar of step (1) hacks work in-process through hot rolling, cold rolling, thermal treatment, the support that rolls into arc successively, becomes support to hack finished product after then support being hacked half-finished outside surface polishing, internal surface matte management;
(3) titanium alloy rod bar of step (1) is bent into U shape adjustment dish successively after hot rolling, cold rolling, thermal treatment, surface treatment, and bores out corresponding threaded hole in the two-arm of U shape adjustment dish;
(4) titanium alloy rod bar of step (1) connects block, upper clamp and lower clamp through hot rolling, cold rolling, thermal treatment, surface treatment aftershaping, and bores out threaded hole on upper clamp successively;
(5) titanium alloy rod bar of step (1) roll forming at least 2 on Mannesmann piercing mill saves titanium alloy tube, and is assembled into telescopic union lever;
(6) dilator body is first assembled, fixing device for installing again: adjustment dish is enclosed within support and hacks outside, and being adjusted to support by adjusting bolt, to hack opening bore minimum, mounting spring between the side that one of them support that adjacent two supports are hacked is hacked and the outer cylinder that another support is hacked;
Connection block, union lever and Connection Card folder are connected successively, then connection block is hacked with corresponding support and be connected.
Wherein, described titanium alloy material comprises following component by weight percentage: zirconium 3% ~ 5%, tin 0.8% ~ 1%, vanadium 0.5% ~ 0.8%; Boron 0.2% ~ 0.25%, titanium surplus.
Wherein, in described step (2), preparation support is when hacking, and selectively hacks or two different supports are hacked to mold and attracted card groove and cleaning card groove in same support;
Can comprise the steps: to attract pipe and wash tube with the preparation of medical grade rubber material after step (5), the component of described medical grade rubber material comprises: solid state si rubber grain 35 ~ 50 parts, tetrafluoroethylene natural gum 20 ~ 30 parts, film coalescence aid 8 ~ 12 parts, 2 ~ 5 parts, sterilant, polyethylene 10 ~ 20 parts, compatilizer 10 ~ 15 parts, promotor 1 ~ 3 part;
Increase following steps in step (6): attracting pipe and wash tube to be arranged on as required in corresponding attraction card groove and cleaning card groove, attract the upper end of pipe to be connected to suction pump, the upper end of wash tube is connected to water receiver.
The useful effect of the technique scheme of the present invention is as follows:
The dilator opening size of the present invention is adjustable, doctor can according to size of tumor free adjustment, and the present invention is also provided with stationary installation, utilize this stationary installation, it is possible to regulate dilator body around the angle of Y-axis in XZ plane, it is also possible to regulate dilator body around the angle of Z axle in X/Y plane, and the length of union lever is adjustable, doctor can select suitable skull to clamp, and brain dilator is fixed, is beneficial to operation.
Accompanying drawing explanation
Fig. 1 is the front view of the embodiment of the present invention one;
Fig. 2 is the vertical view of embodiment one;
Fig. 3 is the structural representation setting up cold light source on the basis of Fig. 1;
Fig. 4 is the structural representation set up on the basis of Fig. 1 and attract device and washing unit;
Fig. 5 is the vertical view of the embodiment of the present invention two;
Fig. 6 is the vertical view of the embodiment of the present invention three;
Fig. 7 is the vertical view of the embodiment of the present invention four.
Description of reference numerals:
1, dilator main body; 100, adjustment dish; 101, support is hacked; 1010, card groove is attracted; 1011, cleaning card groove; 102, spring; 103, adjusting bolt assembly; 2, stationary installation; 200, block is connected; 201, union lever; 202, Connection Card folder; 2020, upper clamp; 2021, lower clamp; 2022, screw rod; 2023, pressure head; 203, the first rotating shaft; 204, the 2nd rotating shaft; 3, device is attracted; 300, suction pump; 301, pipe is attracted; 4, washing unit; 400, wash tube; 401, water receiver; 5, skull.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, it is described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiment 1: as shown in Figure 1 and Figure 2, a kind of brain dilator, comprise dilator main body 1 and stationary installation 2, the support that described dilator main body 1 comprises adjustment dish 100, two panels opening is oppositely arranged hacks 101, described adjustment dish 100 is set in outside 4/5 place that support hacks 101, and adjustment dish 100 is provided with the opening regulating structure hacking the dilator opening size that 101 enclose by support for regulating.
Wherein, the outer side that support hacks 101 should be shiny surface, in order to avoid bringing cerebral tissue and other article in sliding process into, interior side should be dull surface, produces reflective, affect the visual field after avoiding light to be shining into.
In the present embodiment, the opening portion that wherein support described in hacks 101 is arranged in support described in another and hacks in the opening of 101, described support is hacked 101 and is and has elastic arc-shaped structure, the support being positioned at outside hack 101 internal diameter equal with the external diameter that the support being positioned at inner side hacks 101. Described support in outside is hacked and is connected, between the outer cylinder that the dual-side of 101 hacks with the support in inner side, the spring 102 that is in compressed state always respectively.
The variable range of described dilator opening is 1 ~ 3cm.
Described adjustment dish 100 is U shape structure, and described opening regulating structure is the adjusting bolt assembly 103 of the arm end being located at U shape adjustment dish 100, comprises bolt, and the nut that spiral shell connects with it after bolt-through two-arm.
Described stationary installation 2 comprises and connects block 200, union lever 201 and Connection Card folder 202, the outer cylinder that described connection block 200 hacks 101 with wherein one support is fixedly connected with or one-body molded, described connection block 200 is rotationally connected by the first rotating shaft 203 with one end of union lever 201, the axis of described first rotating shaft 203 hacks the axes normal of 101 with support, the other end of described union lever 201 and Connection Card folder 202 are rotationally connected by the 2nd rotating shaft 204, and the axis of described 2nd rotating shaft 204 hacks the axis being parallel of 101 with support. Described first rotating shaft 203 and the 2nd rotating shaft 204 place can arrange spacing structure, it is also possible to be designed to axis hole slight interference and coordinate, to prevent support hacks 101, union lever 201 turns round.
In the present embodiment, described Connection Card folder 202 comprises the thick lower clamp 2021 of the thick upper clamp 2020 of 1mm, 1mm and screw rod 2022, and described upper clamp 2020 is provided with and the threaded hole that screw rod 2022 spiral shell connects, and the lower end of described screw rod 2022 is fixed with pressure head 2023.
Described pressure head 2023 is coated with rubber pad, the upper surface of described lower clamp 2021 is covered with rubber layer, during Connection Card folder 202 clamping skull 5, skull can not be damaged. Described union lever 201 is expansion link preferably, and its length is adjustable in 1 ~ 5cm.
In the present embodiment, the cold light source 6(that can arrange adjustable light and shade in the bottom that one or more pieces supports hack 101 according to service condition is as shown in Figure 3), it is preferable that being installed on the button cell that support hacks 101 bottoms equally is that cold light source is powered.
As shown in Figure 4, the brain dilator of the present embodiment is optionally arranged and attracts device 3, washing unit 4, or attraction device 3 and washing unit 4 are set simultaneously. Described attraction device 3 comprises suction pump 300 and attracts pipe 301, the sidewall that wherein support described in hacks 101 is provided with axially extended attraction card groove 1010, described attraction pipe 301 is arranged in and attracts in card groove 1010, the interior side-lower hacking 101 to support after the 301 times end bendings of described attraction pipe extends to the bottom of brain dilator, and described suction pump 300 is connected the upper end of pipe 301 with attracting.
Wherein, card groove is attracted can to open the inner side-wall hacked in support, it is also possible to open at outer side wall; Opening when inner side-wall, through supportting the sidewall hacked after attracting the upper end bending of pipe, open when outer side wall, the sidewall hacked through support after attracting the lower end bending of pipe extends internally. The optional vacuum suction machine of described suction pump.
Described washing unit 4 comprises cleaning water pipe 400 and water receiver 401, the sidewall that support described in another hacks 101 is provided with axially extended cleaning card groove 1011, described wash tube 400 is arranged in cleaning card groove 1011, the interior side-lower hacking 101 to support after the lower end bending of described wash tube 400 extends to the bottom of brain dilator, and described water receiver 401 is connected with the upper end of wash tube 400.
Wherein, cleaning card groove can open the inner side-wall hacked in support, it is also possible to opens at outer side wall; Opening when inner side-wall, through supportting the sidewall hacked after the upper end bending of wash tube, open when outer side wall, the sidewall hacked through support after the lower end bending of wash tube extends internally. Described water receiver can select rubber bag with water, syringe, or the combination of water tank and water pump.
The component of described brain dilator adopt lighter as far as possible, the alloy material of poor thermal conductivity, and not so excessively long illumination heat production can injured brain tissue. Therefore, the support in the present embodiment hack, the titanium alloy of preferred light, the poor thermal conductivity of adjustment dish, stationary installation.
The embodiment of the present invention one also provides the preparation method of a kind of described brain dilator, comprises the steps:
(1) titanium alloy material through ingot casting, anneal, be forged into titanium alloy bar;
Wherein, described titanium alloy material comprises following component by weight percentage: zirconium 3% ~ 5%, tin 0.8% ~ 1%, vanadium 0.5% ~ 0.8%; Boron 0.2% ~ 0.25%, titanium surplus.
(2) titanium alloy bar of step (1) hacks work in-process through hot rolling, cold rolling, thermal treatment, the support that rolls into arc successively, becomes support to hack finished product after then support being hacked half-finished outside surface polishing, internal surface matte management;
(3) titanium alloy rod bar of step (1) is bent into U shape adjustment dish successively after hot rolling, cold rolling, thermal treatment, surface treatment, and bores out corresponding threaded hole in the two-arm of U shape adjustment dish;
(4) titanium alloy rod bar of step (1) connects block, upper clamp and lower clamp through hot rolling, cold rolling, thermal treatment, surface treatment aftershaping, and bores out threaded hole on upper clamp successively;
(5) titanium alloy rod bar of step (1) roll forming at least 2 on Mannesmann piercing mill saves titanium alloy tube, and is assembled into telescopic union lever;
(6) dilator body is first assembled, fixing device for installing again: adjustment dish is enclosed within support and hacks outside, and being adjusted to support by adjusting bolt, to hack opening bore minimum, mounting spring between the side that one of them support that adjacent two supports are hacked is hacked and the outer cylinder that another support is hacked;
Connection block, union lever and Connection Card folder are connected successively, then connection block is hacked with corresponding support and be connected.
Washing unit it is set if opening in brain support or attracts device, when preparation support is hacked in the described step (2), selectively hacking or two different supports are hacked to mold and attracted card groove and cleaning card groove in same support. Can comprise the steps: to attract pipe and wash tube with the preparation of medical grade rubber material after step (5), the component of described medical grade rubber material comprises: solid state si rubber grain 35 ~ 50 parts, tetrafluoroethylene natural gum 20 ~ 30 parts, film coalescence aid 8 ~ 12 parts, 2 ~ 5 parts, sterilant, polyethylene 10 ~ 20 parts, compatilizer 10 ~ 15 parts, promotor 1 ~ 3 part; Increase following steps in step (6): attracting pipe and wash tube to be arranged on as required in corresponding attraction card groove and cleaning card groove, attract the upper end of pipe to be connected to suction pump, the upper end of wash tube is connected to water receiver.
Embodiment 2: as shown in Figure 5, the structure of the present embodiment is substantially identical with the structure of embodiment 1, and difference is: described support is hacked as U shape structure. Connect block adjustable along supportting the axial location hacking outer cylinder.
Adjustable for realizing connecting the axial location of block, following several structure can be adopted: the inner side of a, described connection block is provided with guide block, the outer cylinder that described support is hacked is provided with the axially extended chute matched with guide block, slight interference can coordinate between guide block and chute, connection block slightly firmly just can be made to hack slip along support. The inner side of b, described connection block is provided with magnet, and the outer cylinder that described support is hacked is provided with axially extended metal strip; Or metal block is set in the inner side connecting block, the outer cylinder that support is hacked arranges magnetic stripe. The inner side of c, described connection block is provided with minor axis, and the plurality of receptacles being provided with and arranging vertically is hacked in described support, and jack is positioned at and hacks 1/4 ~ 3/4 region, bottom apart from support.
Embodiment 3: as shown in Figure 6, the structure of the present embodiment is substantially identical with the structure of embodiment 1, difference is: described dilator body comprises the support of 4 arcs and hacks, and is connected, between the outer cylinder that the side hacked in the support in outside that the support of every adjacent two panels is hacked hacks with the support in inner side, the spring that is in compressed state always respectively.
Embodiment 4: the stationary installation of the present embodiment is identical with embodiment 1, the structure of dilator body is as shown in Figure 7, described adjustment dish is circular ring structure, support described in two is hacked as the identical semi arch structure of radius, the outside that each described support is hacked is provided with an opening regulating structure, described opening regulating structure comprises the threaded hole that is opened on adjustment dish, head hacks the bolt that outer cylinder is fixedly connected with support, and described bolt and threaded hole spiral shell connect. The variable range of described dilator opening is 1 ~ 3cm.
The above is the preferred embodiment of the present invention; it is noted that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also making some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a brain dilator, it is characterized in that, comprise dilator main body and stationary installation, the support that described dilator main body comprises adjustment dish, at least two panels opening is oppositely arranged is hacked, described adjustment dish is set in the outside supportted and hack, and adjustment dish is provided with the opening regulating structure hacking the dilator opening size enclosed by support for regulating;
Described stationary installation comprises and connects block, union lever and Connection Card folder, the outer cylinder that described connection block hacks with wherein one support is connected, described connection block is connected by the first axis of rotation with one end of union lever, the axes normal that the axis of described first rotating shaft hacks with support, the other end of described union lever is connected by the 2nd axis of rotation with Connection Card folder, the axis being parallel that the axis of described 2nd rotating shaft hacks with support;
Described Connection Card folder comprises clamp, lower clamp and screw rod, and described upper clamp is provided with and the threaded hole that screw rod spiral shell connects, and the lower end of described screw rod is fixed with pressure head.
2. brain dilator according to claim 1, it is characterised in that, the outer cylinder that described connection block hacks with support is fixedly connected with.
3. brain dilator according to claim 1, it is characterised in that, the axial location that described connection block hacks outer cylinder along support is adjustable.
4. brain dilator according to claim 1, it is characterized in that, described dilator main body comprises the described support that two panels has elastic circular arc and hacks, wherein supportting the opening portion hacked described in one is arranged in the opening supportting described in another and hacking, the external diameter that the internal diameter that the described support being positioned at outside is hacked hacks with the support being positioned at inner side is equal, is connected, between the outer cylinder that the dual-side that the described support in outside is hacked hacks with the support in inner side, the spring that is in compressed state always respectively;
The variable range of described dilator opening is 1 ~ 3cm;
Described adjustment dish is U shape structure, and described opening regulating structure is the adjusting bolt assembly of the arm end being located at U shape adjustment dish.
5. brain dilator according to claim 1, it is characterized in that, described adjustment dish is circular ring structure, support described in two is hacked as the identical semi arch structure of radius, the outside that each described support is hacked is provided with an opening regulating structure, described opening regulating structure comprises the threaded hole that is opened on adjustment dish, head hacks the bolt that outer cylinder is fixedly connected with support, and described bolt and threaded hole spiral shell connect;
The variable range of described dilator opening is 1 ~ 3cm.
6. brain dilator according to claim 1, it is characterized in that, also comprise attraction device, it comprises suction pump and attracts pipe, wherein support the sidewall hacked described in one and it is provided with axially extended attraction card groove, described attraction pipe clamp is located at and is attracted in card groove, and the interior side-lower hacked to support after the described attraction lower end bending of pipe extends to the bottom of brain dilator, and described suction pump is connected the upper end of pipe with attracting.
7. brain dilator according to claim 1, it is characterized in that, also comprise washing unit, it comprises cleaning water pipe and water receiver, wherein support the sidewall hacked described in one and it is provided with axially extended cleaning card groove, described wash tube is arranged in cleaning card groove, and the interior side-lower hacked to support after the lower end bending of described wash tube extends to the bottom of brain dilator, and described water receiver is connected with the upper end of wash tube.
8. the preparation method of a brain dilator as according to any one of claim 1 ~ 7, it is characterized in that, the support of described brain dilator is hacked, adjustment dish, stationary installation are titanium alloy light, poor thermal conductivity, and the preparation method of described brain dilator comprises the steps:
(1) titanium alloy material through ingot casting, anneal, be forged into titanium alloy bar;
(2) titanium alloy bar of step (1) hacks work in-process through hot rolling, cold rolling, thermal treatment, the support that rolls into arc successively, becomes support to hack finished product after then support being hacked half-finished outside surface polishing, internal surface matte management;
(3) titanium alloy rod bar of step (1) is bent into U shape adjustment dish successively after hot rolling, cold rolling, thermal treatment, surface treatment, and bores out corresponding threaded hole in the two-arm of U shape adjustment dish;
(4) titanium alloy rod bar of step (1) connects block, upper clamp and lower clamp through hot rolling, cold rolling, thermal treatment, surface treatment aftershaping, and bores out threaded hole on upper clamp successively;
(5) titanium alloy rod bar of step (1) roll forming at least 2 on Mannesmann piercing mill saves titanium alloy tube, and is assembled into telescopic union lever;
(6) dilator body is first assembled, fixing device for installing again: adjustment dish is enclosed within support and hacks outside, and being adjusted to support by adjusting bolt, to hack opening bore minimum, mounting spring between the side that one of them support that adjacent two supports are hacked is hacked and the outer cylinder that another support is hacked;
Connection block, union lever and Connection Card folder are connected successively, then connection block is hacked with corresponding support and be connected.
9. the preparation method of brain dilator according to claim 8, it is characterised in that, described titanium alloy material comprises following component by weight percentage: zirconium 3% ~ 5%, tin 0.8% ~ 1%, vanadium 0.5% ~ 0.8%; Boron 0.2% ~ 0.25%, titanium surplus.
10. the preparation method of brain dilator according to claim 8, it is characterised in that, in described step (2), preparation support is when hacking, and selectively hacks or two different supports are hacked to mold and attracted card groove and cleaning card groove in same support;
Can comprise the steps: to attract pipe and wash tube with the preparation of medical grade rubber material after step (5), the component of described medical grade rubber material comprises: solid state si rubber grain 35 ~ 50 parts, tetrafluoroethylene natural gum 20 ~ 30 parts, film coalescence aid 8 ~ 12 parts, 2 ~ 5 parts, sterilant, polyethylene 10 ~ 20 parts, compatilizer 10 ~ 15 parts, promotor 1 ~ 3 part;
Increase following steps in step (6): attracting pipe and wash tube to be arranged on as required in corresponding attraction card groove and cleaning card groove, attract the upper end of pipe to be connected to suction pump, the upper end of wash tube is connected to water receiver.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111759377A (en) * | 2020-07-08 | 2020-10-13 | 中国人民解放军北部战区总医院 | Expanding incision device for brain surgery |
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| CN105615933B (en) | 2018-08-14 |
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