CN106363866A - Manufacturing method of puncture core rod, puncture core rod and puncture outfit - Google Patents
Manufacturing method of puncture core rod, puncture core rod and puncture outfit Download PDFInfo
- Publication number
- CN106363866A CN106363866A CN201610809530.XA CN201610809530A CN106363866A CN 106363866 A CN106363866 A CN 106363866A CN 201610809530 A CN201610809530 A CN 201610809530A CN 106363866 A CN106363866 A CN 106363866A
- Authority
- CN
- China
- Prior art keywords
- core bar
- curved lever
- locating rod
- puncture core
- puncture
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
-
- 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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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a manufacturing method of a puncture core rod, a puncture core with the puncture core rod and a puncture outfit. The manufacturing method of the puncture core rod comprises the following steps that firstly, a forming rod is fed into an injection molding cavity; secondly, a locating rod is made to extend into the injection molding cavity, the locating rod abuts against the forming rod, and under the action force exerted by the locating rod, the position of the forming rod is kept fixed relative to the inner wall of the injection molding cavity; and thirdly, injection molding materials are injected into an injection molding space between the injection molding cavity and the forming rod, the puncture core rod is formed after pressure maintaining and cooling are conducted on the injection molding materials, and demolding is conducted on the formed puncture core rod. According to the manufacturing method of the puncture core rod, the forming rod is located through the locating rod, the stability of the position of the forming rod can be effectively guaranteed in the injection molding process, the forming rod is prevented from deviating, so that smooth injection molding of the puncture core rod can be achieved, and the rejection rate of the product is reduced.
Description
Technical field
The present invention relates to area of medical devices, wear in particular to a kind of manufacture method of puncture core bar and accordingly
Thorn core bar and perforator.
Background technology
Check in abdominal cavity, in abdominal operation and other minimally invasive or surgical operations, perforator is requisite operating theater instruments.
Perforator can set up entrance passage in the stomach wall of human body, (such as endoscope, to cut for peritoneoscope or other operating theater instruments
Knife, anastomat, seal wire, conduit, filter, support etc.) enter intraperitoneal, and provide gas turnover passage, with control operation institute
The pneumoperitoneum needing, to be checked or operation technique.
When the operation of minimally invasive laparoscopic medical starts, doctor typically first scratches a little otch in patient's abdominal part, then will wear
Move down while reciprocating rotation about the little otch that the summit be aligned of barbed end is scratched, perforator makes puncture casing pass through patient
Abdominal part cortex, then, the puncture core bar within puncture casing is extracted by doctor.
At present, the puncture core bar of above-mentioned perforator in process of production, is molded with using Shooting Technique.During injection, first
First curved lever is put in die cavity, and curved lever is positioned.Then, to injection injection molding material between curved lever and die cavity.So
And, in above-mentioned production technology, curved lever is susceptible to offset, thus have impact on the injection mo(u)lding puncturing core bar.
Therefore, for the problems referred to above it is necessary to propose further solution.
Content of the invention
For the deficiencies in the prior art, the present invention is intended to provide a kind of manufacture method puncturing core bar and corresponding puncture
Core bar and perforator, to overcome the deficiencies in the prior art.
For achieving the above object, the present invention provides a kind of manufacture method puncturing core bar, and it comprises the steps:
S1, by curved lever send into injection die cavities in；
S2, locating rod is stretched in described injection die cavities, so that described locating rod is leant with described curved lever, described fixed
Under the active force that position bar applies, the inwall holding position of described curved lever and described injection die cavities is fixed；
S3, to the injection mo(u)lding space injection injection molding material between described injection die cavities and curved lever, injection molding material is through pressurize, cold
But aftershaping, carries out the demoulding to the puncture core bar after molding.
As the improvement of the manufacture method of the puncture core bar of the present invention, in the presence of described locating rod, described curved lever
Keep being coaxially disposed with described injection die cavities.
As the improvement of the manufacture method of the puncture core bar of the present invention, described locating rod is several, several locating rods
To the active force that described curved lever applies to make a concerted effort be zero.
As the improvement of the manufacture method of the puncture core bar of the present invention, along the radial direction of described curved lever, described positioning
Bar is to described curved lever to apply active force.
As the improvement of the manufacture method of the puncture core bar of the present invention, when described locating rod and described curved lever lean,
Described locating rod is arranged at the both sides of described curved lever in the way of symmetrically or non-symmetrically, and perpendicular with described curved lever.
As the improvement of the manufacture method of the puncture core bar of the present invention, when described locating rod and described curved lever lean,
Described locating rod is arranged at the both sides of described curved lever in the way of symmetrically or non-symmetrically, and with described curved lever out of plumb.
As the improvement of the manufacture method of the puncture core bar of the present invention, the side wall of described injection die cavities is provided with projection,
Described locating rod passes through described projection, stretches in described injection die cavities.
As the improvement of the manufacture method of the puncture core bar of the present invention, the manufacture method of described puncture core bar also includes:
S4, sealing shroud is set with the puncture core bar after described molding, described sealing shroud cover described puncturing on core bar,
The location hole that during injection mo(u)lding, locating rod is formed.
For achieving the above object, the present invention provides a kind of puncture core bar, and its basis punctures core bar as above
Manufacture method produces.
For achieving the above object, the present invention provides a kind of perforator, and it includes puncturing as above core bar.
Compared with prior art, the invention has the beneficial effects as follows: the present invention puncture core bar manufacture method by using
Locating rod positions to curved lever, and it can effectively ensure that the stability of curved lever position in injection moulding process, it is to avoid its generation
Skew so that puncture core bar can smoothly injection mo(u)lding, reduce the percent defective of product.
Brief description
Fig. 1 is the principle schematic of manufacture method one specific embodiment of puncture core bar of the present invention；
Fig. 2 is the floor map of puncture core bar one specific embodiment of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " axle
To ", " radially ", " circumferential ", the orientation of the instruction such as " reciprocal " or position relationship be based on orientation shown in the drawings or position relationship,
Be for only for ease of the description present invention and simplify description, rather than instruction or the hint device of indication or element must have specific
Orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
Individual etc., unless otherwise expressly limited specifically.
Embodiment below with reference to Description of Drawings is exemplary it is intended to be used for explaining the present invention, and is not understood that
For limitation of the present invention.With reference to specific embodiment, each technical scheme of the present invention is described in detail.
The present invention produce puncture core bar inner hollow setting, its inner space in injection molding process, by curved lever
Formed.In order to position to curved lever, the manufacture method of the puncture core bar of the present invention, in injection molding process, utilizes all the time
Locating rod applies detenting force to curved lever, to keep its position to be relatively fixed, so that puncture core bar can smoothly note
Molded.
As shown in figure 1, the manufacture method of the puncture core bar of the present invention specifically includes:
S1, curved lever 1 is sent in injection die cavities 2.
Wherein, the internal diameter of described injection die cavities 2 be more than described curved lever 1 diameter, thus, described injection die cavities 2 with enter
The described injection mo(u)lding space puncturing core bar is limited between the curved lever 1 entering described injection die cavities 2.
S2, locating rod is stretched in described injection die cavities 2, so that described locating rod is leant with described curved lever 1, described
Under the active force that locating rod 3 applies, the inwall holding position of described curved lever 1 and described injection die cavities 2 is fixed.
Wherein, described locating rod 3 is telescopically disposed in the injection-moulding device with injection die cavities 2, described injection mold
Including injection die cavities 2, described injection mold also includes the hole stretched into for locating rod 3 and retract, and thus, described locating rod 3 can be led to
Cross described hole to stretch in described injection die cavities 2 and lean with curved lever 1.The fixation of described position is meant that: so that curved lever 1 is existed
It is relatively fixed with the inwall holding position relation of described injection die cavities 2 in the presence of locating rod 3.
Specifically, when locating rod 3 is leant with described curved lever 1, locating rod 3 to its to apply active force, in this effect
Under power, curved lever 1 holding position is relatively fixed, and keeps being coaxially disposed with described injection die cavities 2.Further, described inwall
Including side wall 22 and antetheca 23, there is between described curved lever 1 and described side wall 22 radial distance, after curved lever 1 positioning, molding
Radial distance between bar 1 and side wall 22 keeps uniformity, thus realizing carrying out radial positioning to curved lever 1；Described molding
There is between bar 1 and described antetheca 23 axial distance, after curved lever 1 positioning, between curved lever 1 and injection die cavities 2 axially away from
From keeping uniformity, thus realizing carrying out axially position to curved lever 1.
Stretching into and retracting of locating rod 3 can be realized by straight-line motion mechanism in the art, and above-mentioned linear motion machine
Structure can control the stroke that locating rod 3 is stretched, and is fixed with the inwall holding position that this realizes curved lever 1 and described injection die cavities 2.
Additionally, the quantity of described locating rod 3 can be several, several locating rods 3 are resisted against on described curved lever 1,
And several locating rods 3 to the active force that described curved lever 1 applies to make a concerted effort be zero, so, the position of curved lever 1 is by firmly
Limit, it is to avoid curved lever 1 shifts.Preferably, between several locating rods 3 are on the axial direction of curved lever 1 equably
Every distribution.
Further, the direction to the active force that described curved lever 1 applies for the described locating rod 3, along the footpath of described curved lever 1
To direction.That is, described curved lever 3 is perpendicular with described curved lever 1.As a kind of embodiment, described locating rod 3 with described become
When type bar 1 leans, described locating rod 3 is symmetricly set in the both sides of described curved lever 1, meanwhile, the symmetrically arranged positioning in both sides
Bar 3 is perpendicular with described curved lever 1.In other embodiments, it is zero premise in locating rod for curved lever 1 making a concerted effort of providing
Under, locating rod 3 also can be according to asymmetrical formal distribution, and locating rod 3 also can keep out of plumb with curved lever 1.Need explanation
, illustrate only the situation of setting two and the locating rod 3 being symmetric in Fig. 1, the determining of other quantity and distributional pattern
Position bar is not shown.
S3, between described injection die cavities 2 and curved lever 1 injection mo(u)lding space injection injection molding material, injection molding material through pressurize,
Cooling aftershaping, carries out the demoulding to the puncture core bar after molding.
Wherein, the injection-moulding device with injection die cavities 2 has injection hole, and injection hole is connected with injection die cavities 2, injection molding material warp
Injection mo(u)lding is realized in injection hole injection injection die cavities 2.Further, since being positioned to curved lever 1 using locating rod 3, in note
During molded, due to the presence of locating rod, the puncture core bar of molding can be formed with location hole.Therefore, in order to avoid wearing
During thorn, blood or small tissue etc. enter in puncture core bar, need the location hole being formed is sealed.Thus,
The manufacture method of the puncture core bar of the present invention specifically also includes:
S4, sealing shroud is set with the puncture core bar after described molding, described sealing shroud covers on described puncture core bar, note
The location hole that when molded, locating rod 3 is formed.
Further, the installation of sealing shroud for convenience, the side wall of described injection die cavities 2 is provided with the projection of annular
21, described raised 21 include the hole passing through for locating rod 3, and thus, described locating rod 3 passes through the projection 21 of described annular, and stretches
Enter in described injection die cavities 2.Thus, by the projection 21 of setting annular, in injection molding process, on the puncture core bar of molding
The groove of annular can be formed with, and described location hole is located at and runs through the bottom of this annular groove.So, sealing shroud is installed
When, sealing shroud can be arranged in described groove.Preferably, the thickness of sealing shroud and the depth of groove are consistent.Can substitute
, raised 21 may not be annular, but multiple raised 21 of the surface distributed along injection die cavities 2, its quantity and positioning
The quantity of bar 3 is identical.
As shown in Fig. 2 the present invention also provides a kind of puncture core bar, this puncture core bar is according to puncture core bar as above
Manufacture method produces.
Specifically, described puncture core bar includes: most advanced and sophisticated 10, shaft 20 and installation end 30.Wherein, described most advanced and sophisticated 10 it is located at
One end of described shaft 20, described installation end 30 is located at the other end of described shaft 20.Described most advanced and sophisticated 10, shaft 20 and installation
30 integrated injection moldings are held to form.Additionally, having location hole 201 on described shaft 20, this location hole 201 is by the positioning in injection moulding process
Bar and formed.Sealing shroud 40 is also equipped with described shaft 20, described sealing shroud 40 covers and seals described location hole 201.Excellent
Selection of land, described shaft 20 is arranged fluted, and described sealing shroud 40 is located in described groove, the thickness of sealing shroud and the depth of groove
Degree is consistent.So, when sealing shroud 40 is installed on described shaft 20, the surface of sealing shroud 40 keeps right with the surface of shaft 20
Together, thus, sealing shroud 40 does not interfere with the motion of the puncture casing puncturing core bar relatively outside it.
The present invention also provides a kind of perforator, and described perforator includes puncturing as above core bar.
In sum, the manufacture method of the puncture core bar of the present invention positions to curved lever by using locating rod, its
Can effectively ensure that the stability of curved lever position in injection moulding process, it is to avoid its shift so that puncture core bar can be smooth
Injection mo(u)lding, reduces the percent defective of product.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
Connect or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limit unless otherwise clear and definite.For those of ordinary skill in the art
For, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible
It is the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combine.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of manufacture method puncturing core bar is it is characterised in that the manufacture method of described puncture core bar comprises the steps:
S1, by curved lever send into injection die cavities in；
S2, locating rod is stretched in described injection die cavities, so that described locating rod is leant with described curved lever, in described locating rod
Under the active force applying, the inwall holding position of described curved lever and described injection die cavities is fixed；
S3, between described injection die cavities and curved lever injection mo(u)lding space injection injection molding material, injection molding material through pressurize, cooling after
Molding, carries out the demoulding to the puncture core bar after molding.
2. the manufacture method puncturing core bar according to claim 1 is it is characterised in that in the presence of described locating rod,
Described curved lever and described injection die cavities keep being coaxially disposed.
3. according to claim 1 puncture core bar manufacture method it is characterised in that described locating rod be several, if
Dry locating rod to the active force that described curved lever applies to make a concerted effort be zero.
4. the manufacture method of the puncture core bar according to claim 1 or 3 is it is characterised in that radial direction along described curved lever
Direction, described locating rod is to described curved lever to apply active force.
5. the manufacture method puncturing core bar according to claim 1 is it is characterised in that described locating rod and described curved lever
When leaning, described locating rod is arranged at the both sides of described curved lever in the way of symmetrically or non-symmetrically, and with described curved lever
Perpendicular.
6. the manufacture method puncturing core bar according to claim 1 is it is characterised in that described locating rod and described curved lever
When leaning, described locating rod is arranged at the both sides of described curved lever in the way of symmetrically or non-symmetrically, and with described curved lever
Out of plumb.
7. the manufacture method puncturing core bar according to claim 1 is it is characterised in that set on the side wall of described injection die cavities
It is equipped with projection, described locating rod passes through described projection, stretches in described injection die cavities.
8. the manufacture method of the puncture core bar according to claim 1 or 7 is it is characterised in that the manufacture of described puncture core bar
Method also includes:
S4, suit sealing shroud, on described sealing shroud covering described puncture core bar, injection on the puncture core bar after described molding
The location hole that during molding, locating rod is formed.
9. a kind of puncture core bar is it is characterised in that puncture core according to any one of claim 1～8 for the described puncture core bar
The manufacture method of bar produces.
10. a kind of perforator is it is characterised in that described perforator includes puncturing as claimed in claim 9 core bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610809530.XA CN106363866B (en) | 2016-09-08 | 2016-09-08 | It punctures the manufacturing method of core bar and punctures core bar and puncture outfit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610809530.XA CN106363866B (en) | 2016-09-08 | 2016-09-08 | It punctures the manufacturing method of core bar and punctures core bar and puncture outfit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106363866A true CN106363866A (en) | 2017-02-01 |
| CN106363866B CN106363866B (en) | 2019-01-25 |
Family
ID=57900202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610809530.XA Active CN106363866B (en) | 2016-09-08 | 2016-09-08 | It punctures the manufacturing method of core bar and punctures core bar and puncture outfit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106363866B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070075465A1 (en) * | 2005-10-05 | 2007-04-05 | Applied Medical Resources Corporation | Thin-walled optical obturator |
| CN105050482A (en) * | 2012-12-27 | 2015-11-11 | 柯惠Lp公司 | Two-shot molded optical obturator |
-
2016
- 2016-09-08 CN CN201610809530.XA patent/CN106363866B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070075465A1 (en) * | 2005-10-05 | 2007-04-05 | Applied Medical Resources Corporation | Thin-walled optical obturator |
| CN105050482A (en) * | 2012-12-27 | 2015-11-11 | 柯惠Lp公司 | Two-shot molded optical obturator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106363866B (en) | 2019-01-25 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Dongsheng Road, Jiangyin city 214437 Jiangsu city of Wuxi province No. 6 D3 the first layer Applicant after: Jiangsu wind and medical equipment Limited by Share Ltd Address before: Dongsheng Road, Jiangyin city 214437 Jiangsu city of Wuxi province No. 6 D3 the first layer Applicant before: Jiangsu wind and medical equipment Co., Ltd |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Baofeng Inventor after: Ma Meng Inventor before: Sun Baofeng Inventor before: Huang Chen Inventor before: Ma Meng |
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