CN109675143A - Disposable steel needle uses rear defence sheath and its injection mold - Google Patents
Disposable steel needle uses rear defence sheath and its injection mold Download PDFInfo
- Publication number
- CN109675143A CN109675143A CN201910011162.8A CN201910011162A CN109675143A CN 109675143 A CN109675143 A CN 109675143A CN 201910011162 A CN201910011162 A CN 201910011162A CN 109675143 A CN109675143 A CN 109675143A
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- China
- Prior art keywords
- tube body
- protection tube
- fixed part
- forming cavity
- cavity
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3213—Caps placed axially onto the needle, e.g. equipped with finger protection guards
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/3278—Apparatus for destroying used needles or syringes
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/24—Medical instruments, e.g. endoscopes, catheters, sharps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
- B29L2031/7544—Injection needles, syringes
Abstract
The invention belongs to the field of medical instrument technology more particularly to a kind of disposable steel needle to use rear defence sheath and its injection mold.The present invention, protection tube body including being in hollow cylindrical, the protection tube body is closed at one end, the other end has opening, the protection tube body is equipped with one end of opening integrally formed with fixed part, there is the fixation cavity with opening in communication, the cross-sectional area of the fixed part is greater than the cross-sectional area of protection tube body, further includes the fixed plug in embeddable fixed cavity in fixed part.Protective jacket provided by the invention can carry out security protection to the steel needle after using, the propagation for preventing relevant blood-borne diseases, and structure is simple, lower production costs are suitable for large-scale promotion use, and, injection mold provided by the invention can injection molding have different inner diameters protection tube body protective jacket, with the syringe, infusion apparatus, blood taking needle etc. for adapting to different tube diameters, expand the scope of application of protective jacket, while reducing injection molding cost.
Description
Technical field
The invention belongs to the field of medical instrument technology more particularly to a kind of disposable steel needle to use rear defence sheath and its injection molding
Mold.
Background technique
Disposable syringe, infusion apparatus, the blood taking needle etc. of many years have generally been used, and after usage, medical worker is also
Need to be by pertinent regulations, the processing such as carry out disinfection to it, but it is difficult be that the processing to its steel needle is particularly problematic, accidentally, pole
Easily stab oneself.Current as under hepatitis B, hepatitis, syphilis, the high-incidence situation of AIDS, such as contaminated steel needle is accidentally injured, and consequence can't bear
Imagine.Equally, the steel needle after use is also easy to that accidental injury event occurs in clinical waste innocent treatment procedure.Therefore need one
Part safety device, dedicated for the steel needle security protection after the uses such as such as syringe, infusion apparatus, blood taking needle, to reach not
Cause injury harmful medical worker and clinical waste harmless treatment staff etc., prevents the propagation of relevant blood-borne diseases.
For example, Chinese utility model patent disclose a kind of medical needle disinfection protective jacket [application number:
201620884011.5], which includes syringe needle and the protective jacket with sterilizing function, it is characterised in that: described
Pinhead sleeve chlorination equipment and fixed device, the chlorination equipment packet are equipped with inside protective jacket, inside the protective jacket
Rotating cylinder and disinfection brush are included, the disinfection brush is located on the inner wall of rotating cylinder, and the top of the rotating cylinder is equipped with rotation
Handle is changed hands, the fixation device includes fixing leg and waterproof jacket, and the fixing end of the fixing leg is fixed on protective jacket
Inner wall on, the free end of the fixing leg is connect with needle contact, and the waterproof is set in the fixation of fixing leg
On the inner wall for holding the protective jacket of lower section.
The utility model, which can be realized, to avoid accidentally injuring, and reduces secondary injury, and adequate disinfection facilitates the purpose of recovery processing, but
Its structure is excessively complicated, is not easy to carry out large-scale industrial production, manufacturing cost is higher.
Summary of the invention
Regarding the issue above, the present invention provides a kind of disposable steel needle uses rear defence sheath, of the invention is another
One purpose is to provide the injection mold that a kind of disposable steel needle uses rear defence sheath.
In order to achieve the above objectives, present invention employs following technical proposals:
A kind of disposable steel needle uses rear defence sheath, the protection tube body including being in hollow cylindrical, the protection tube body one
End seal is closed, and the other end has opening, and one end that the protection tube body is equipped with opening has in fixed part integrally formed with fixed part
With the fixation cavity of opening in communication, the cross-sectional area of the fixed part is greater than the cross-sectional area of protection tube body, and further including can be embedding
Enter the fixed plug in fixed cavity.
In above-mentioned disposable steel needle using in rear defence sheath, further including disinfection cavity, the disinfection cavity, which is located at, to be protected
In tube wall or it is located in protection tube wall and fixed part side wall, described disinfection cavity one end and protection tubular body cavity
It is connected, other end perforation protection tube wall or perforation fixed part side wall or perforation fixed part top are connected with the external world, cover
Body fits with disinfection cavity, and the lid is detachably connected on protection tube body or is detachably connected on protection tube body and fixation
In portion.
In above-mentioned disposable steel needle using in rear defence sheath, the disinfection cavity is located at protection tube wall and fixed part
In side wall, and one end with protection tubular body cavity be connected, the other end perforation fixed part top be connected with the external world, lid and
Disinfection cavity fits, and the lid is detachably connected with protection tube body and fixed part.
In above-mentioned disposable steel needle using in rear defence sheath, the fixed part lateral wall is fixedly connected with hand holding handle；Institute
The one end for protecting tube body to keep away from mouth is stated filled with gel, the disinfection cavity is being located at gel just with the communication port of tube body is protected
Top.
In above-mentioned disposable steel needle using in rear defence sheath, the fixed plug includes integrally formed positioning cap and compression
Portion, the embeddable fixed cavity of compressed part is interior and is interference fitted with fixed part, and the positioning cap is pressed on fixed part upper end, fixed
Position cap is connected by soft interconnecting piece with hand holding handle.
A kind of disposable steel needle uses the injection mold of rear defence sheath, successively includes bottom plate, moving template, solid plate and injection molding
Plate, fixed die insert are movably connected in solid plate, are slidably connected core-pulling slide block in the moving template, are fixedly connected on moving template
The core pulling oil cylinder and core-pulling slide block of outer wall are drivingly connected, and the fixed die insert, moving template and core-pulling slide block are enclosed into jointly
Shape chamber, has injection hole on the injection molding plates, and injection hole is connected by injection molding channel with forming cavity.
In injection mold of the above-mentioned disposable steel needle using rear defence sheath, the forming cavity includes for protecting tube body
Injection molding protects tube body forming cavity, for the fixed part forming cavity of fixed part injection molding and for hand holding handle injection molding
Hand holding handle forming cavity, the protection tube body forming cavity, fixed part forming cavity and hand holding handle forming cavity be interconnected, the core pulling
Sliding block fits with protection tube body forming cavity and fixed part forming cavity, and core-pulling slide block has positioning far from one end of core pulling oil cylinder
Block, the locating piece pass through protection tube body forming cavity and are pressed on moving template.
In injection mold of the above-mentioned disposable steel needle using rear defence sheath, the protection tube body forming cavity is in an end seal
The hollow cylindrical closed, end cross-sectional adjust insert in the internal diameter of circular ring shape and fit with protection tube body forming cavity inner surface,
The internal diameter adjusts insert and is slidably connected with moving template, and internal diameter adjusts the axial line of insert and the axle center of protection tube body forming cavity
Line coincides, and drive cylinder is equipped in the moving template, and the drive cylinder adjusts insert driving by drive rod and internal diameter and connects
It connects.
In injection mold of the above-mentioned disposable steel needle using rear defence sheath, the internal diameter adjusts insert and is equipped at least two
A, the axial line that each internal diameter adjusts insert is mutually overlapped, and the maximum internal diameter of diameter adjusts insert and protection tube body forming cavity
Inner surface fits.
It further include between bottom plate and moving template in injection mold of the above-mentioned disposable steel needle using rear defence sheath
Ejecting mechanism, described ejecting mechanism one end is pressed on bottom plate, and the other end extends to forming cavity bottom surface, and the ejecting mechanism can
The sliding close to or far from moving template occurs, ejecting mechanism both ends are symmetrically arranged with support block, and described support block one end is fixed with bottom plate
Connection, the other end are fixedly connected with moving template.
Compared with prior art, the present invention has the advantages that
1, protective jacket provided by the invention can carry out security protection to the steel needle after using, and prevent relevant blood-borne diseases
Propagation, and structure is simple, lower production costs, is suitable for that large-scale promotion uses.
2, protective jacket provided by the invention is using opening card slot design, to make infusion apparatus, blood taking needle with plastic tube
Deng without dismantling, and needle handle etc. can be set with completely and be stuck in card slot, it is easy to use, guarantee working efficiency.
3, injection mold provided by the invention can injection molding have different inner diameters protection tube body protective jacket, to adapt to not
With the syringe, infusion apparatus, blood taking needle etc. of caliber, expand the scope of application of protective jacket, while reducing injection molding cost.
4, the present invention is filled with gel in protecting tube body, can be to steel needle when disposable syringe is inserted into protection tube body
It causes effectively to block, disposable steel needle is avoided to reuse, while can prevent original medical fluid and blood in steel needle from overflowing again
It pollutes out, also eliminates the trouble that medical worker effectively unmakes to steel needle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of protective jacket；
Fig. 2 is the cross-sectional view of protective jacket；
Fig. 3 is the cross-sectional view of injection mold；
In figure: protection tube body 1, opening 2, fixed part 3, fixed cavity 4, fixed plug 5, disinfection cavity 6, lid 7, hand holding handle
8, soft interconnecting piece 9, bottom plate 10, moving template 11, solid plate 12, injection molding plates 13, fixed die insert 14, core-pulling slide block 15, core pulling oil
Cylinder 16, forming cavity 17, injection hole 18, injection molding channel 19, protection tube body forming cavity 20, fixed part forming cavity 21, hand holding handle forming
Chamber 22, locating piece 23, internal diameter adjust insert 24, drive cylinder 25, drive rod 26, ejecting mechanism 27, support block 28, positioning cap 51,
Compressed part 52.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Embodiment 1
The present embodiment provides a kind of disposable steel needles to use rear defence sheath, as shown in Figure 1, including in the anti-of hollow cylindrical
Pillar body 1, the protection tube body 1 is closed at one end, and the other end has opening 2, and the protection tube body 1 is equipped with one end one of opening 2
It is body formed to have fixed part 3, there is the fixation cavity 4 being connected with opening 2 in fixed part 3, the cross-sectional area of the fixed part 3 is big
It further include the fixed plug 5 in embeddable fixed cavity 4 in the cross-sectional area of protection tube body 1.
The present invention, after the uses such as disposable syringe, infusion apparatus, blood taking needle, medical matters or related personnel can
Steel needle is inserted into fixed part 3 and protection tube body 1 together with syringe, the steel needle of front end extends into protection tube body 1 by opening 2
Interior, syringe pedestal is pressed on fixed 4 bottom surface of cavity, beyond the Great Wall fixed plug 5, is pressed on fixed plug 5 i.e. complete on syringe pedestal
It is handled at the storage of disposable steel needle, therefore protective jacket provided by the invention can carry out security protection, prevention to the steel needle after using
The propagation of relevant blood-borne diseases, and structure is simple, lower production costs, and suitable large-scale promotion uses, also, this hair
For the protective jacket of bright offer in entire treatment process, infusion apparatus, blood taking needle with plastic tube etc. are easy to use without disassembling,
Guarantee working efficiency.
As shown in Fig. 2, further including disinfection cavity 6, the disinfection cavity 6 is located in protection 1 side wall of tube body or is located at protection
In 3 side wall of 1 side wall of tube body and fixed part, described 6 one end of disinfection cavity is connected with protection 1 internal cavities of tube body, and the other end passes through
Logical protection 1 side wall of tube body or perforation 3 side wall of fixed part or perforation 3 top of fixed part are connected with the external world, lid 7 and disinfection cavity
6 fit, and the lid 7 is detachably connected on protection tube body 1 or is detachably connected on protection tube body 1 and fixed part 3, this
Thimerosal can be added by disinfection cavity 6 to protection tube body 1, simply, easily and safely be completed after the completion of storage by sample
The sterilizing operation of steel needle.
Preferably, the disinfection cavity 6 is located in protection 1 side wall of tube body and 3 side wall of fixed part, and one end and protection tube body
1 internal cavities are connected, and other end perforation 3 top of fixed part is connected with the external world, and lid 7 fits with disinfection cavity 6, described
Lid 7 is detachably connected with protection tube body 1 and fixed part 3, and the entrance of thimerosal is arranged on 3 top of fixed part in this way, is convenient for
The injection of thimerosal.
As shown in Figure 1,3 lateral wall of fixed part is fixedly connected with hand holding handle 8, it in this way can be convenient for users to holding protection
Set.
Preferably, hand holding handle 8 is located at the two sides for protecting tube body 1 opposite with disinfection cavity 6, sterilizes in this way in injection
When liquid, hand holding handle 8 not will cause steric hindrance.
As shown in Fig. 2, the protection tube body 1 is filled with gel 29 far from one end of opening 2, the disinfection cavity 6 with prevent
The communication port of pillar body 1 is located at the surface of gel 29, is filled with gel 29 in protection tube body 1, inserts in disposable syringe
When entering to protect tube body 1, steel needle can be caused effectively to block, avoid disposable steel needle from reusing, while steel can be prevented again
Original medical fluid and blood from overflowing pollute in needle, also eliminate the trouble that medical worker effectively unmakes to steel needle, this
Invention with no restriction, as long as can play the role of blocking steel pinhole, such as can use fine jade to the specific type of gel 29
Rouge or silica dioxide gel.
Referring to figs. 1 and 2, the fixed plug 5 includes integrally formed positioning cap 51 and compressed part 52, the compression
It being interference fitted in the embeddable fixed cavity 4 in portion 52 and with fixed part 3, compressed part 52 is made by elastic material, such as rubber material, this
Sample can easily realize the interference fit with fixed part 3, and the positioning cap 51 is pressed on 3 upper end of fixed part, and positioning cap 51 is logical
It crosses soft interconnecting piece 9 to be connected with hand holding handle 8, wherein soft interconnecting piece 9 can be connecting band or connecting line.
Embodiment 2
The present embodiment provides the injection molds that a kind of disposable steel needle uses rear defence sheath, in conjunction with shown in Fig. 1 and Fig. 3, according to
Secondary includes bottom plate 10, moving template 11, solid plate 12 and injection molding plates 13, and fixed die insert 14 is movably connected in solid plate 12, described
Core-pulling slide block 15 is slidably connected in moving template 11, is fixedly connected on the core pulling oil cylinder 16 and core-pulling slide block 15 of 11 outer wall of moving template
It is drivingly connected, the fixed die insert 14, moving template 11 and core-pulling slide block 15 are enclosed forming cavity 17, the injection molding plates 13 jointly
Upper to have injection hole 18, injection hole 18 is connected by injection molding channel 19 with forming cavity 17, and the forming cavity 17 includes for preventing
1 injection molding of pillar body protects tube body forming cavity 20, for the fixed part forming cavity 21 of 3 injection molding of fixed part and for hand
Hold the hand holding handle forming cavity 22 of 8 injection molding of handle, the protection tube body forming cavity 20, fixed part forming cavity 21 and hand holding handle forming
Chamber 22 is interconnected, and can make that tube body 1, fixed part 3 and hand holding handle 8 is protected to be integrally formed in this way, improve the intensity of protective jacket entirety,
The core-pulling slide block 15 fits with protection tube body forming cavity 20 and fixed part forming cavity 21, and core-pulling slide block 15 is in injection moulding process
So that disinfection cavity 6 shapes, core-pulling slide block 15 has locating piece 23 far from one end of core pulling oil cylinder 16, and the locating piece 23 passes through
Protection tube body forming cavity 20 is simultaneously pressed on moving template 2, and locating piece 23 guarantees that core-pulling slide block 15 slides into finger in injection moulding process
Positioning is set while play positioning action, and the disinfection cavity 6 of forming is made to be connected with 1 internal cavities of tube body are protected.
The present invention, in use, moving template 11 and solid plate 12 fit, core pulling oil cylinder 16 drives core-pulling slide block 15 to slide,
So that fixed die insert 14, moving template 11 and core-pulling slide block 15 are enclosed forming cavity 17 jointly, the melt plastic cement in injection molding machine is logical
Injection hole 18 is crossed, via in 19 injection molding chamber 17 of injection molding channel, after cooling and shaping, starts core pulling oil cylinder 16, it is sliding to complete core pulling
The core pulling of block 15, then being opened separates solid plate 12 mutually with moving template 11, to take out injecting products.
As shown in figure 3, the protection tube body forming cavity 20 is in hollow cylindrical closed at one end, end cross-sectional is in annulus
The internal diameter of shape adjusts insert 24 and fits with protection 20 inner surface of tube body forming cavity, and the internal diameter adjusts insert 24 and moving template 11
It is slidably connected, and internal diameter adjusts the axial line of insert 24 and the axial line of protection tube body forming cavity 20 coincides, the moving template
Drive cylinder 25 is equipped in 11, the drive cylinder 25 adjusts insert 24 by drive rod 26 and internal diameter and is drivingly connected, it is preferable that
The internal diameter adjusts insert 24 and is equipped at least two, and the axial line that each internal diameter adjusts insert 24 is mutually overlapped, and diameter is maximum
Internal diameter adjust insert 24 and protection 20 inner surface of tube body forming cavity fit, in this way can pass through adjusting protect tube body forming cavity 20
Thickness, that is, adjust protection tube body 1 wall thickness with injection molding have different inner diameters protection tube body 1 protective jacket, to adapt to not
With the syringe, infusion apparatus, blood taking needle etc. of caliber, expand the scope of application of protective jacket, while reducing injection molding cost.
As shown in figure 3, further including the ejecting mechanism 27 between bottom plate 10 and moving template 11, the ejecting mechanism 27 1
Side pressure is located on bottom plate 11, and the other end extends to 20 bottom surface of forming cavity, and the ejecting mechanism 27 can occur close to or far from dynamic model
The sliding of plate 11, in use, the sliding close to moving template 11 occurs for ejecting mechanism 27, to complete the ejection of injecting products, ejection
27 both ends of mechanism are symmetrically arranged with support block 28, and described 28 one end of support block is fixedly connected with bottom plate 10, and the other end and moving template 11 are solid
Fixed connection can guarantee that the distance between moving template 11 and bottom plate 10 remain unchanged in ejection process in this way.
Specifically, ejecting mechanism 27 includes that the face needle plate being pressed on bottom plate 10 and one end are fixedly connected on face needle plate
On, the other end extends to the knock-pin of 17 bottom surface of forming cavity, and the sliding close to or far from moving template 11 can occur for the face needle plate.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although protection tube body 1, the 2, fixed part 3 that is open, fixed cavity 4, fixed plug 5, disinfection sky is used more herein
Chamber 6, hand holding handle 8, soft interconnecting piece 9, bottom plate 10, moving template 11, solid plate 12, injection molding plates 13, fixed die insert 14, is taken out lid 7
Core sliding block 15, core pulling oil cylinder 16, forming cavity 17, injection hole 18, injection molding channel 19, protection tube body forming cavity 20, fixed part forming
Chamber 21, hand holding handle forming cavity 22, locating piece 23, internal diameter adjust insert 24, drive cylinder 25, drive rod 26, ejecting mechanism 27, mould
The terms such as foot 28, positioning cap 51, compressed part 52, but it does not exclude the possibility of using other terms.Only using these terms
It is to be more convenient to describe and explain essence of the invention；Being construed as any additional limitation is all and this hair
What bright spirit was disagreed.
Claims (10)
1. a kind of disposable steel needle uses rear defence sheath, it is characterised in that: the protection tube body (1) including being in hollow cylindrical, institute
It is closed at one end to state protection tube body (1), the other end has opening (2), and protection tube body (1) is equipped with one end one of opening (2)
It forms fixed part (3), there is the fixation cavity (4) being connected with opening (2), the cross of the fixed part (3) in fixed part (3)
Sectional area is greater than the cross-sectional area of protection tube body (1), further includes the fixed plug (5) in embeddable fixed cavity (4).
2. disposable steel needle as described in claim 1 uses rear defence sheath, it is characterised in that: further include disinfection cavity (6), institute
Disinfection cavity (6) is stated to be located in protection tube body (1) side wall or be located in protection tube body (1) side wall and fixed part (3) side wall, it is described
Disinfection cavity (6) one end is connected with protection tube body (1) internal cavities, and other end perforation protection tube body (1) side wall or perforation are solid
Determine portion's (3) side wall or perforation fixed part (3) top is connected with the external world, lid (7) fits with disinfection cavity (6), the lid
Body (7) is detachably connected in protection tube body (1) or is detachably connected on protection tube body (1) and fixed part (3).
3. disposable steel needle as claimed in claim 2 uses rear defence sheath, it is characterised in that: the disinfection cavity (6) is located at
It protects in tube body (1) side wall and fixed part (3) side wall, and one end is connected with protection tube body (1) internal cavities, other end perforation
Fixed part (3) top is connected with the external world, and lid (7) fits with disinfection cavity (6), the lid (7) and protection tube body (1)
And fixed part (3) is detachably connected.
4. disposable steel needle as claimed in claim 2 uses rear defence sheath, it is characterised in that: fixed part (3) lateral wall
It is fixedly connected with hand holding handle (8)；Protection tube body (1) is filled with gel (29) far from one end of opening (2), and the disinfection is empty
Chamber (6) and the communication port of protection tube body (1) are located at the surface of gel (29).
5. disposable steel needle as claimed in claim 4 uses rear defence sheath, it is characterised in that: the fixed plug (5) includes one
Body formed positioning cap (51) and compressed part (52), in the embeddable fixed cavity (4) of compressed part (52) and with fixed part (3)
Interference fit, the positioning cap (51) are pressed on fixed part (3) upper end, and positioning cap (51) passes through soft interconnecting piece (9) and hand-held
Handle (8) is connected.
6. the injection mold that a kind of disposable steel needle uses rear defence sheath, it is characterised in that: successively include bottom plate (10), moving template
(11), solid plate (12) and injection molding plates (13), fixed die insert (14) are movably connected in solid plate (12), the moving template (11)
Core-pulling slide block (15) are inside slidably connected, the core pulling oil cylinder (16) and core-pulling slide block (15) of moving template (11) outer wall are fixedly connected on
It is drivingly connected, the fixed die insert (14), moving template (11) and core-pulling slide block (15) are enclosed forming cavity (17) jointly, described
There are injection hole (18) on injection molding plates (13), injection hole (18) is connected by injection molding channel (19) with forming cavity (17).
7. the injection mold that disposable steel needle as claimed in claim 6 uses rear defence sheath, it is characterised in that: the forming cavity
It (17) include for protecting the protection tube body forming cavity (20) of tube body (1) injection molding, consolidating for fixed part (3) injection molding
Determine portion's forming cavity (21) and is used for the hand holding handle forming cavity (22) of hand holding handle (8) injection molding, the protection tube body forming cavity
(20), fixed part forming cavity (21) and hand holding handle forming cavity (22) are interconnected, the core-pulling slide block (15) and protection tube body at
Shape chamber (20) and fixed part forming cavity (21) fit, and core-pulling slide block (15) has locating piece far from the one end of core pulling oil cylinder (16)
(23), the locating piece (23) passes through protection tube body forming cavity (20) and is pressed on moving template (2).
8. the injection mold that disposable steel needle as claimed in claim 7 uses rear defence sheath, it is characterised in that: the protecting tube
Body forming cavity (20) is in hollow cylindrical closed at one end, and end cross-sectional adjusts insert (24) and protection in the internal diameter of circular ring shape
Tube body forming cavity (20) inner surface fits, and the internal diameter adjusts insert (24) and is slidably connected with moving template (11), and internal diameter tune
The axial line of the axial line and protection tube body forming cavity (20) that save insert (24) coincides, and driving is equipped in the moving template (11)
Oil cylinder (25), the drive cylinder (25) adjust insert (24) by drive rod (26) and internal diameter and are drivingly connected.
9. the injection mold that disposable steel needle as claimed in claim 8 uses rear defence sheath, it is characterised in that: the internal diameter tune
It saves insert (24) and is equipped at least two, the axial line that each internal diameter adjusts insert (24) is mutually overlapped, the maximum internal diameter of diameter
Insert (24) are adjusted to fit with protection tube body forming cavity (20) inner surface.
10. the injection mold that disposable steel needle as claimed in claim 6 uses rear defence sheath, it is characterised in that: further include position
Ejecting mechanism (27) between bottom plate (10) and moving template (11), described ejecting mechanism (27) one end are pressed on bottom plate (11)
On, the other end extends to forming cavity (20) bottom surface, and the cunning close to or far from moving template (11) can occur for the ejecting mechanism (27)
Dynamic, ejecting mechanism (27) both ends are symmetrically arranged with support block (28), and described support block (28) one end is fixedly connected with bottom plate (10), another
End is fixedly connected with moving template (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910011162.8A CN109675143A (en) | 2019-01-07 | 2019-01-07 | Disposable steel needle uses rear defence sheath and its injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910011162.8A CN109675143A (en) | 2019-01-07 | 2019-01-07 | Disposable steel needle uses rear defence sheath and its injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109675143A true CN109675143A (en) | 2019-04-26 |
Family
ID=66192031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910011162.8A Pending CN109675143A (en) | 2019-01-07 | 2019-01-07 | Disposable steel needle uses rear defence sheath and its injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109675143A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110269768A (en) * | 2019-06-03 | 2019-09-24 | 南京医科大学 | For the location bed of Auxiliary Liver puncture procedure, guide plate and guide plate design method |
| CN116277662A (en) * | 2023-05-15 | 2023-06-23 | 安徽玖洲通管业科技有限公司 | Vacuum cooling forming equipment for processing high-temperature-resistant PVC power protection tube |
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| CN208305662U (en) * | 2018-06-06 | 2019-01-01 | 玉环圣久模具有限公司 | Disposable cavity high efficiency medical lancet seat mold |
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| US4728320A (en) * | 1987-04-17 | 1988-03-01 | Chen Chang Cheng | Syringe cap with hammer |
| CN2721115Y (en) * | 2004-07-22 | 2005-08-31 | 吴一豪 | Separator of syringe needle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110269768A (en) * | 2019-06-03 | 2019-09-24 | 南京医科大学 | For the location bed of Auxiliary Liver puncture procedure, guide plate and guide plate design method |
| CN116277662A (en) * | 2023-05-15 | 2023-06-23 | 安徽玖洲通管业科技有限公司 | Vacuum cooling forming equipment for processing high-temperature-resistant PVC power protection tube |
| CN116277662B (en) * | 2023-05-15 | 2023-08-04 | 安徽玖洲通管业科技有限公司 | Vacuum cooling forming equipment for processing high-temperature-resistant PVC power protection tube |
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