CN108451562A - A kind of cranium brain tube chamber step-less adjustment extension fixture - Google Patents

A kind of cranium brain tube chamber step-less adjustment extension fixture Download PDF

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Publication number
CN108451562A
CN108451562A CN201810211874.XA CN201810211874A CN108451562A CN 108451562 A CN108451562 A CN 108451562A CN 201810211874 A CN201810211874 A CN 201810211874A CN 108451562 A CN108451562 A CN 108451562A
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China
Prior art keywords
expanding plate
tube chamber
extension fixture
less adjustment
pipe sheath
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CN201810211874.XA
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CN108451562B (en
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闫学强
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Guangzhou Sap Technology Co Ltd
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Guangzhou Sap Technology Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08Accessories or related features not otherwise provided for
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08Accessories or related features not otherwise provided for
    • A61B2090/0801Prevention of accidental cutting or pricking
    • A61B2090/08021Prevention of accidental cutting or pricking of the patient or his organs

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Pathology (AREA)
  • Surgical Instruments (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

A kind of cranium brain tube chamber step-less adjustment extension fixture, including elastic dilatation piece;It is the cylindrical shape of multilayer crimping very close that the expanding plate has the first form and the second form, first form under the limitation of external constraint, and second form is the cylindrical shape of curling;The curling number of turns of second form is less than the curling number of turns of the first form;The expanding plate can be expanded to the second form by the first controlled morphology.The present invention is by using elastic dilatation piece by the gradual release of crimping very close state and widened mode under the action of internal stress, realize the stepless ectatic to brain tissue in operations on cranium and brain, have the characteristics that simple for structure, easy to operate, realizes the adjusting control in operations on cranium and brain channel.The present invention is small to the destruction wound of brain tissue, it is ensured that surgical procedure channel security is reliable, greatly reduces the Iatrogenic injury in surgical procedure, while reducing the workload and operation difficulty of doctor, significantly improves the prognosis of patient.

Description

A kind of cranium brain tube chamber step-less adjustment extension fixture
Technical field
The invention belongs to medical instruments fields, are related to a kind of cranium brain tube chamber step-less adjustment expansion dress applied to operations on cranium and brain It sets.
Background technology
Intracranial hematoma, tumour and other intracranial lesions have the characteristics that position depth, neighbouring critical function area, lead to intracerebral portion Region operative approach is complicated, and surgical procedure is difficult, risk is big, art area anthemorrhagic difficulty, and it is not high to cut rate entirely, and especially brain tissue is very It is tender, iatrogenic injury is be easy to cause in surgical procedure.When carrying out intracerebral operation, it is often necessary to the clinical operations such as cortex fistulization Approach gets to deep focal zone, which inevitably because instrument passes through, causes iatrogenic brain tissue impairment.
Existing patent of invention CN106994027 discloses a kind of brain tissue and struts device, including dilator main body, fixed dress Set, inner core and locking member, by being expanded from cortex, fistulization, then to brain tissue retract it is fixed after again to deep into the hand-manipulating of needle Property is operated, to reach exposed operating field, makes that surgical procedure is more convenient, easy purpose.However, apparatus structure design is not It is reasonable to the greatest extent, during being placed in and pulling out it is easy that brain tissue is caused to damage;And it is complicated for operation, do not have the work(of step-less adjustment Can, quantitative adjusting can not be carried out to cortical expansion area size.
Invention content
It is an object of the invention to overcome the deficiencies of existing technologies, provide a kind of simple for structure, easily operated, safely controllable Property is strong, iatrogenic injury is small, and has the cranium brain lumen distention device of step-less adjustment function.
To achieve the above object, present invention employs following technical solutions:
A kind of cranium brain tube chamber step-less adjustment extension fixture, including elastic dilatation piece 1.The expanding plate 1 is in external constraint Limitation is lower with the first form and the second form, and first form is the cylindrical shape of multilayer crimping very close, second form For the cylindrical shape of curling;The curling number of turns of second form is less than the curling number of turns of the first form;The expanding plate can be by One controlled morphology is expanded to the second form.
Further, the expanding plate 1 is rectangular sheet elastic construction, and thickness is 0.1 to 5 millimeter.
Further, it is 2 to 10 circles that the expanding plate 1, which crimps the number of turns in the first form,.
Further, the expanding plate 1 is the metal or plastic construction of single layer, or is double-deck metal, plastics or gold Category/plastic composite structure;The metal is memory metal or alloy.
Further, the cranium brain tube chamber step-less adjustment extension fixture further includes carrying out restrict to the form of expanding plate 1 Controller 2, the controller 2 whole L-shaped including mutually perpendicular fixed part 20 and handle portion 21;The fixation Portion 20 is arranged along the outer side edges 11 of expanding plate 1, includes the strip outer panel 22 and interior plate 23 highly consistent with expanding plate 1; The outer panel 22 connects closure with the upper/lower terminal of interior plate 23, and centre forms narrow slit 24;The outer side edges of the expanding plate 1 Be connected and fixed with the side of 2 outer panel 22 of controller, the outer ring of the expanding plate 1 (i.e. coiling when ecto-entad first lap) or Outermost multi-turn is passed through from narrow slit 24;The handle portion 21 is located at fixed part upper end, along remote perpendicular to the direction of fixed part It is arranged outward from expanding plate 1.
Further, the expanding plate 1 is equipped with the protrusion 13 of strip, raised 13 height along the direction of inner side edge 12 More than the width of 20 narrow slit 24 of fixed part.
Further, 2 outer panel 22 of the controller is equipped with through-hole 221, and briquetting 28 is equipped in through-hole 221;Briquetting 28 can It moves to realize compression in through-hole 221 or discharges the expanding plate 1 in 20 narrow slit 24 of fixed part;The handle portion 21 is equipped with Operating lever 25, the operating lever 25 are connect by shaft 26 with 21 en scissors-like construction in " X " shape of handle portion;The operating lever 25 Operating side 252 is arranged in parallel with handle portion 21, and the motion end 251 of the operating lever 25 is contacted with briquetting 28;By depressing or lifting The operating side 252 of operating lever 25 is played, briquetting 28 can be squeezed or discharged with control action end 251.
Further, the cranium brain tube chamber step-less adjustment extension fixture further includes the pipe sheath being arranged in cylindric expanding plate 1 3, the top of the pipe sheath 3 is equipped with funnelform syringe interface 31, lower part and the syringe interface 31 of pipe sheath 3 be coaxially provided with The highly consistent pipe sheath ontology 32 of expanding plate 1;The diameter of the pipe sheath ontology 32 is with expanding plate 1 in the cylinder in the first form Portion space diameter is consistent, and the pipe sheath ontology 32 is internally provided with to be connected to and through-hole 35 up and down with syringe interface 31;Institute It states and is additionally provided with hard core 4 inside pipe sheath 3.
Further, the cross sectional shape of the protrusion 13 being arranged at 1 inner side edge 12 of expanding plate is the small ladder of outer imperial palace Shape structure, the pipe sheath ontology 32 of the pipe sheath 3 are equipped with the card slot 33 being used cooperatively with protrusion 13.
Further, 31 outside of syringe interface of the pipe sheath 3 is equipped with pilot pin 34 straight down;The handle portion 21 are equipped with the location hole 29 being used cooperatively with pilot pin 34.
A kind of cranium brain tube chamber step-less adjustment extension fixture of the present invention, by using elastic dilatation piece internal stress effect Under by crimping very close state gradually release and widened mode, realize in operations on cranium and brain to the stepless ectatic of brain tissue, there is knot The features such as structure is succinct, easy to operate realizes the adjusting control in operations on cranium and brain channel.Destruction wound of the present invention to brain tissue It is small, it is ensured that surgical procedure channel security is reliable, greatly reduces the Iatrogenic injury in surgical procedure, while reducing doctor Raw workload and operation difficulty, significantly improves the prognosis of patient.
Description of the drawings
Fig. 1 is that (expanding plate is a kind of overall structure diagram of cranium brain tube chamber step-less adjustment extension fixture of the present invention in figure First form);
Fig. 2 is a kind of bottom substance schematic diagram of cranium brain tube chamber step-less adjustment extension fixture of the present invention;
Fig. 3 is a kind of overall structure of the expanding plate of cranium brain tube chamber step-less adjustment extension fixture of the present invention in the first form Schematic diagram;
Fig. 4 is a kind of overall structure diagram of the controller of cranium brain tube chamber step-less adjustment extension fixture of the present invention (in figure Operating side is impaction state);
Fig. 5 is a kind of overall structure diagram of the pipe sheath of cranium brain tube chamber step-less adjustment extension fixture of the present invention;
Fig. 6 is a kind of overall structure diagram of the hard core of cranium brain tube chamber step-less adjustment extension fixture of the present invention;
Fig. 6 is a kind of overall structure diagram of the hard core of cranium brain tube chamber step-less adjustment extension fixture of the present invention;
Fig. 7 is that (expanding plate is a kind of overall structure diagram of cranium brain tube chamber step-less adjustment extension fixture of the present invention in figure Second form);
Fig. 8 is a kind of partial structural diagram of the controller of cranium brain tube chamber step-less adjustment extension fixture of the present invention (in figure Operating side is release conditions).
Specific implementation mode
Below in conjunction with attached drawing 1 to attached drawing 8, a kind of tool of cranium brain tube chamber step-less adjustment extension fixture is further illustrated the present invention Body embodiment.A kind of cranium brain tube chamber step-less adjustment extension fixture of the present invention is not limited to the following description.
As depicted in figs. 1 and 2, a kind of cranium brain tube chamber step-less adjustment extension fixture, including expanding plate 1, controller 2, pipe sheath 3 With hard core 4.The expanding plate 1 is the cylinder-like structure that rectangular sheet elastic material is rolled into, and pipe sheath 3 and hard core 4 are arranged in circle Inside the expanding plate 1 of tubular, controller 2 is located at 1 outside of expanding plate, and constraint and restriction effect are played to the form of expanding plate 1.
As shown in Figures 2 and 3, be the cranium brain tube chamber step-less adjustment extension fixture expanding plate 1 overall structure signal Figure.The expanding plate 1 is to be rolled by the elastic material of rectangular sheet, after 1 roll-forming of expanding plate, has and expands outwardly Internal stress.Specifically, the expanding plate 1 can be metal, memory metal, alloy or the plastic construction of single layer, it can also It is metal, plastics or the metal/plastic composite construction of bilayer, thickness is 0.1 to 5 millimeter.In practical application, ensuring to expand Under the premise of piece 1 has enough intensity and elasticity, its thickness should be reduced as possible, to reduce the cross-sectional diameter of the present apparatus, And then reduce when establishing operation path the wound caused by brain tissue.The expanding plate 1 is under the restrict of controller 2, tool There are the first form and the second form, first form is the cylinder-like structure (as shown in Figure 3) of multilayer crimping very close, described the Two forms are the cylinder-like structure (as shown in Figure 7) of single layer curling.In surgical procedure, expanding plate 1 under the first form have compared with Small cross-sectional diameter facilitates insertion into brain tissue and establishes operation path;After the completion of insertion, the expanding plate 1 is in internal stress Under effect and under the control of controller, by the first form, gradually controlled expansion is logical to establish and expand operation to the second form Operation is implemented in road for doctor in the cylinder-like structure that single layer crimps.As a kind of specific embodiment, the expanding plate 1 It is 2 to 10 circles that the number of turns is crimped in the first form.Expanding plate 1 is inserted into brain tissue and fully expanded to after the second form, Ke Yiwei The cylinder-like structure of single-layer or multi-layer can also only carry out part expansion as needed, and the cylindric knot of multilayer is formed after expansion Structure (the curling number of turns of the curling number of turns of the second form less than the first form at this time), amount of expansion can need to be needed according to operation true Step-less adjustment is determined and carries out, to meet the needs of most operation differentiation.Preferably, transparent modeling can be used in the expanding plate 1 Structure is expected, to the brain tissue state being convenient in the course of surgery outside observation expanding plate 1.
The effect of the controller 2 is controlled the diameter and amount of expansion of the multilayer web-like cylindrical structure of expanding plate 1, Various ways can be used and realize the function, without departing from the inventive concept of the premise, all shall be regarded as belonging to the guarantor of the present invention Protect range.As shown in Figure 1, Figure 2 and Figure 4, a kind of specific implementation mode of controller 2 is given, the controller 2 is whole to be in " L " shape, including mutually perpendicular fixed part 20 and handle portion 21.
The fixed part 20 is arranged along the outer side edges 11 of expanding plate 1, includes on the outside of the strip highly consistent with expanding plate 1 Plate 22 and interior plate 23.From horizontal cross-section, the outer panel 22 and interior plate 23 have and when 1 first form of expanding plate outside The similar radian of circle, to make the present apparatus on horizontal cross-section as possible close to circle.The outer panel 22 and interior plate 23 it is upper, Lower both ends connection is closed, and centre forms narrow slit 24.The outer side edges 11 of the expanding plate 1 connect with the side of 2 outer panel 22 of controller Fixation is connect, (the dismantled and assembled fixed forms such as clamping can also be used, in order to fill to which the outer side edges 11 of expanding plate 1 be fixed The combination or dismantling set).Meanwhile the expanding plate 1 outer ring (i.e. coiling when ecto-entad first lap) worn from narrow slit 24 It crosses, rest part continues to roll to form tubbiness in inside.As another embodiment, can also by outer 2 circle of expanding plate 1 or Multi-turn passes through from narrow slit 24 and turns to tubbiness, and such setting can be such that the second form is made of 2 circles or many coil structures, Its role is to can promote the tensile strength of expanding plate 1, or expanding plate 1 is reduced under the premise of keeping tensile strength constant Thickness.2 outer panel of the controller, 22 upper edge is equipped with through-hole 221, the through-hole perpendicular to the direction of 1 plane of outer ring of expanding plate Be equipped with briquetting 28 in 221, briquetting 28 can the inside and outside movement in through-hole 221, to realize compression or release 20 narrow slit 24 of fixed part In expanding plate 1.Specifically, when applying inward pressure to briquetting 28, briquetting 28 is moved inward along through-hole 221, by narrow slit The first lap of expanding plate 1 in 24 is pressed on the interior plate 23 of controller 2, to realize the controlled expansion to expanding plate 1 And limit is fixed.
As shown in Fig. 4, Fig. 7 and Fig. 8, the handle portion 21 is located at fixed part upper end, along remote perpendicular to the direction of fixed part It is arranged outward from expanding plate 1, main function is easy for holding, position and operating with for the present apparatus, while coordinating briquetting 28 real Now to the limit function of expanding plate 1.The handle portion 21 is equipped with operating lever 25, and the operating lever 25 26 can rotate around the shaft, X-shaped scissors-like motion structure is collectively formed with handle portion 21.The operating side 252 of the operating lever 25 is parallel with handle portion 21 to be set It sets, has and squeeze and discharge two kinds of positions.When operating lever 25 is in extrusion position, operating side 252 is aligned simultaneously with handle portion 21 Locking, hand-held or fixed for operator, the motion end 251 of operating lever 25 contacts with briquetting 28 and generates enough pressure at this time, Realize fixation of the briquetting 28 to expanding plate 1;When operating lever 25 is in releasing position, operating side 252 is lifted up, operating lever 25 Motion end 251 detached with briquetting 28, and then briquetting 28 discharge expanding plate 1.As shown in figure 8, as a kind of specific embodiment party Formula, the end of operating lever 25 are equipped with protrusion 253, the end corresponding position of handle portion 21 be equipped with matched two of protrusion 253 or Multiple grooves 211 can be played by the cooperation between protrusion 253 and different grooves 211 to operating side 252 and handle portion 21 are in the positioning action of different location.
As shown in Figure 2, Figure 5 and Figure 6, the cranium brain tube chamber step-less adjustment extension fixture further includes that setting is expanded in cylindrical shape The top of pipe sheath 3 in piece 1, the pipe sheath 3 is equipped with funnelform syringe interface 31, the lower part of pipe sheath 3 and syringe interface 31 are coaxially provided with the pipe sheath ontology 32 highly consistent with expanding plate 1.The diameter of the pipe sheath ontology 32 is with expanding plate 1 in the first shape Cylinder interior space diameter when state is consistent, and the pipe sheath ontology 32 is internally provided with to be connected to and up and down with syringe interface 31 Through-hole 35.Hard core 4, the tapered structure in top of hard core 4, the inside with syringe interface 31 are additionally provided with inside the pipe sheath 3 Space structure is consistent;Lower part is cylindrical solid core, and diameter is consistent with the diameter of 3 through-hole 35 of pipe sheath.
As shown in Fig. 2, the bottom structure of the pipe sheath 3 is arc-shaped or taper type, the bottom structure of the hard core 4 is circle Arc or semicircle are spherical, and its role is to when expanding plate 1 is the first form, the multilayer rolls the bottom for the expanding plate 1 to be formed By cooperation between portion, the bottom of pipe sheath 3 and the bottom of hard core 4, the bottom structure of blunt round is collectively formed, to reduce this dress Set the damage caused by brain tissue when carrying out insertion operation.(in Figure of description, to clearly show that the web-like of expanding plate 1 Structure, the spacing between the thickness and multilayered structure of expanding plate 1 are larger.In practical applications, 1 thickness of expanding plate will be very thin, And fitted closely between each layer after roll-forming, spacing is there's almost no, therefore expanding plate 1 can be with pipe in the first form Blunt round structure is collectively formed in the bottom of sheath 3 and hard core 4.)
As shown in Figure 2 and Figure 3, the expanding plate 1 is equipped with the protrusion 13 of strip along the direction of inner side edge 12, described The height of protrusion 13 is more than the width of 20 narrow slit 24 of fixed part, to avoid expanding plate 1 inner side edge 12 from the narrow slit of fixed part 20 It is detached from 24, unexpected injury is caused to patient.As a preferred embodiment, described be arranged in 1 inner side edge 12 of expanding plate The cross sectional shape of the protrusion 13 at place is the small inverted trapezoidal structure of outer imperial palace, and the pipe sheath ontology 32 of the pipe sheath 3 is equipped with and protrusion 13 card slots 33 being used cooperatively.Under the first form of expanding plate 1, the card slot 33 of the pipe sheath 3 can be inserted into convex from top to bottom 13 are played, to make pipe sheath 3 and the inner side edge 12 of expanding plate 1 be combined as a whole.The effect of the structure is, when expanding plate 1 is by When one morphological dilatation is the second state, since pipe sheath 3 and expanding plate 1 have been combined, it can be realized and be expanded by manual rotation pipe sheath 3 The controllable expansion of piece 1, to make the dilation procedure of expanding plate 1 become simpler and safe.Meanwhile the note of the pipe sheath 3 31 outside of emitter interface is equipped with pilot pin 34 straight down;The handle portion 21 is equipped with determines with what pilot pin 34 was used cooperatively Position hole 29, in the process of expansion of expanding plate 1, pilot pin 34 can be inserted into location hole 29 by operator at any time, to stop to expand The process of expansion for opening piece 1, keeps the use of the present apparatus more flexible and convenient.
Steps are as follows for the use of the present apparatus:The first step assembles the present apparatus according to the structure of Fig. 1, and expanding plate 1 is first at this time Form;The present apparatus is inserted into brain tissue, can extract hard core 4 in insertion process and be inserted into syringe needle, be drawn by second step The operations such as deep layer hydrops;Third walks, and is lifted up the operating side 252 of operating lever 25, makes the motion end 251 and briquetting of operating lever 25 28 separation, and then discharge expanding plate 1;4th step slightly lifts pipe sheath 3 upwards first, makes the pilot pin 34 and handle portion of pipe sheath 3 21 location hole 29 detaches, then handmade rotary pipe sheath 3, and expanding plate 1 is driven gradually to expand;5th step, to be expanded 1 is expanded to When suitable size, pressing operation bar 25 locks expanding plate 1, and extracts pipe sheath 3, the circle that expanding plate 1 is enclosed at this time completely Cylindrical space, the operation path space as established;6th step after operation, turns back to pipe sheath 3, and release operating lever 25 is moved Make end 251, manual negative direction rotation pipe sheath 3 makes expanding plate 1 gradually crimp, after collapsing to suitable position or the first form, i.e., The present apparatus can be extracted;The mode extracted again is collapsed by using first curling, the damage caused by brain tissue can be further decreased. It waits after performing the operation, the present apparatus can be decomposed and be sterilized, reused for next time.
" the curling number of turns " described in the present embodiment, it must be integer not limit.For example, the curling number of turns can be 2.5 Circle indicates that the curling number of turns is two circles half.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention's Protection domain.

Claims (10)

1. a kind of cranium brain tube chamber step-less adjustment extension fixture, it is characterised in that:Including elastic dilatation piece;The expanding plate is in outside There is the first form and the second form under the limitation of constraint, first form is the cylindrical shape of multilayer crimping very close, described the Two forms are the cylindrical shape of curling;The curling number of turns of second form is less than the curling number of turns of the first form;The expanding plate Can the second form be expanded to by the first controlled morphology.
2. cranium brain tube chamber step-less adjustment extension fixture according to claim 1, it is characterised in that:The expanding plate is rectangle Laminar elastic construction, thickness are 0.1 to 5 millimeter.
3. cranium brain tube chamber step-less adjustment extension fixture according to claim 1, it is characterised in that:The expanding plate is first It is 2 to 10 circles that the number of turns is crimped when form.
4. cranium brain tube chamber step-less adjustment extension fixture according to claim 1, it is characterised in that:The expanding plate is single layer Metal or plastic construction, or be double-deck metal, plastics or metal/plastic composite construction;The metal is memory metal Or alloy.
5. the cranium brain tube chamber step-less adjustment extension fixture according to any claim in Claims 1-4, feature exist In:Further include the controller that restrict is carried out to the form of expanding plate, the controller is integrally L-shaped, including hangs down mutually Straight fixed part and handle portion;
The fixed part is arranged along the outer side edges of expanding plate, includes the strip outer panel and inside highly consistent with expanding plate Plate;The outer panel connects closure with the upper/lower terminal of interior plate, and centre forms narrow slit;The outer side edges of the expanding plate and control The side of device outer panel processed is connected and fixed, and the outer ring of the expanding plate or outermost multi-turn are passed through from narrow slit;The handle Portion is located at fixed part upper end, and edge is arranged perpendicular to the direction of fixed part far from expanding plate outward.
6. cranium brain tube chamber step-less adjustment extension fixture according to claim 5, it is characterised in that:The expanding plate is along inside The direction on side is equipped with the protrusion of strip, and the height of the protrusion is more than the width of fixed part narrow slit.
7. cranium brain tube chamber step-less adjustment extension fixture according to claim 6, it is characterised in that:The controller outer panel It is equipped with through-hole, briquetting is equipped in through-hole;Briquetting can move to realize in compression or release fixed part narrow slit in through-holes Expanding plate;
The handle portion is equipped with operating lever, and the operating lever is connect by shaft with handle portion en scissors-like construction in " X " shape;Institute The operating side and handle portion for stating operating lever are arranged in parallel, and the motion end of the operating lever is contacted with briquetting;By depressing or lifting The operating side of operating lever can squeeze with control action end or discharge briquetting.
8. cranium brain tube chamber step-less adjustment extension fixture according to claim 7, it is characterised in that:Further include being arranged in cylinder The top of pipe sheath in shape expanding plate, the pipe sheath is equipped with funnelform syringe interface, the lower part of pipe sheath and syringe interface It is coaxially provided with the pipe sheath ontology highly consistent with expanding plate;The diameter of the pipe sheath ontology and circle of the expanding plate in the first form Cylinder inner space diameter is consistent, and the pipe sheath body interior is equipped with to be connected to and through-hole up and down with syringe interface;It is described It is additionally provided with hard core inside pipe sheath.
9. cranium brain tube chamber step-less adjustment extension fixture according to claim 8, it is characterised in that:It is described to be arranged in expanding plate The cross sectional shape of protrusion at inner side edge is the small inverted trapezoidal structure of outer imperial palace, and the pipe sheath ontology of the pipe sheath is equipped with and protrusion The card slot being used cooperatively.
10. cranium brain tube chamber step-less adjustment extension fixture according to claim 9, it is characterised in that:The note of the pipe sheath Pilot pin straight down is equipped on the outside of emitter interface;The handle portion is equipped with the location hole being used cooperatively with pilot pin.
CN201810211874.XA 2018-03-15 2018-03-15 Stepless regulating and expanding device for craniocerebral lumen Active CN108451562B (en)

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CN110478012A (en) * 2019-09-18 2019-11-22 中国人民解放军陆军特色医学中心 A kind of act palace device
CN111789642A (en) * 2020-07-02 2020-10-20 泰升医疗有限公司 Retractor assembly and retractor
CN112692125A (en) * 2021-01-27 2021-04-23 广东新通达钢管厂有限公司 High-efficient coiling mechanism is used in galvanized steel sheet production
CN115068022A (en) * 2022-08-23 2022-09-20 中国人民解放军总医院第六医学中心 Brain tissue expansion kit for craniocerebral operation
CN116616837A (en) * 2023-05-25 2023-08-22 镇江恒生涓恩医疗器械有限公司 Medical tube sheath

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