CN207928549U - A kind of novel injector - Google Patents
A kind of novel injector Download PDFInfo
- Publication number
- CN207928549U CN207928549U CN201720503175.3U CN201720503175U CN207928549U CN 207928549 U CN207928549 U CN 207928549U CN 201720503175 U CN201720503175 U CN 201720503175U CN 207928549 U CN207928549 U CN 207928549U
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- CN
- China
- Prior art keywords
- cap body
- casing
- cap
- elastomeric element
- curved baffle
- 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.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model is related to a kind of novel injectors, belong to medical instrument correlative technology field.Include mainly：Including needle cap, syringe needle, cylinder and piston.Needle cap includes cap body, and cap body is hollow cylindrical structure；The top of cap body is enclosed construction, and bottom is hatch frame；The side of cap body has the first straight slot；The inner wall of the cap body is fixedly connected by connecting plate with casing；The top of described sleeve pipe is enclosed construction, and bottom is hatch frame；The side of casing has the second straight slot；The curved baffle for closing the first straight slot is provided between casing and cap body, the side of the curved baffle is fixedly connected with straight baffle；The other side of curved baffle is fixedly connected with one end of elastomeric element, and the other end of elastomeric element is fixedly connected with connecting plate；The straight baffle protrudes from the cap body.The utility model is by designing completely new structure, and medical staff is wounded by stabbing during capable of avoiding back set, the risk that can also avoid puncture portion from scraping plastic grain in needle cap.
Description
Technical field
The present invention relates to medical instrument correlative technology fields, in particular to a kind of novel injector.
Background technology
Syringe is common one of medical instrument.Refering to what is shown in Fig. 1, syringe generally comprises needle cap 1, syringe needle 2, cylinder
3 and piston 4, needle cap 1 and 2 fasten and coordinate of syringe needle.
Refering to what is shown in Fig. 2, existing syringe needle, be followed successively by from top to bottom puncture portion 211, interconnecting piece 212, varying diameter portion 213, etc.
Diameter portion 214 and male part 215.Wherein, puncture portion 211 is by interconnecting piece 212 and 213 airtight connection of varying diameter portion, and varying diameter portion 213 is just
It is fastened in needle cap 1, isometrical portion 214 limits during being used to fasten to needle cap, and male part 215 is dismantled convenient for syringe needle from cylinder.
Syringe in use, does not allow usually needle cap to return (again after forbidding needle cap disengaging syringe needle for set
Needle cap is fastened on syringe needle).
And it is an exception to be injected intravenously.It makes up a prescription, will be made up a prescription with coyote hole because the general process of intravenous injection is included in
Syringe afterwards is placed in pallet and takes in ward, then gives intravenous injection of patient, finally abandons syringe.But to keep away
Exempt from syringe syringe needle during from ward is transferred to coyote hole to be contaminated, operating instruction requirement must be after the completion of making up a prescription
Set is carried out back, the puncture portion of syringe needle is made to be in the closed cavity of needle cap.So medical staff is wounded by stabbing during returning set
Risk greatly improves.
As return set during another be a risk that, existing puncture portion 211 have sharp keen front end, return set process
In, needle cap carries out relative axial movement with puncture portion 211, and there are puncture portions 211 will be under the partly plastic particles scrub in needle cap
Come, falls to the risk in puncture portion 211.It in order to solve this problem, can be leading before medical staff is injected intravenously in ward
Puncture portion 211 is emptied, part medicament is made to be flowed out from puncture portion 211 under the effect of piston, and then ensures puncture portion
There is no plastic grain in 211.But the process of emptying can cause the meaningless waste of medicament, make actual injection to patient's body
Dosage is less than projected dose, influences therapeutic effect.
Invention content
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of novel injector.The present invention passes through
Completely new structure is designed, medical staff is wounded by stabbing during capable of avoiding back set, also puncture portion can be avoided plastics in needle cap
The risk of particles scrub.
In order to achieve the above objectives, the present invention adopts the following technical scheme that.
A kind of novel injector, including needle cap, syringe needle, cylinder and piston；
Needle cap includes cap body, and cap body is hollow cylindrical structure；
The top of the cap body is enclosed construction, and bottom is hatch frame；
The side of cap body has the first straight slot；
The inner wall of the cap body is fixedly connected by connecting plate with casing；
The top of described sleeve pipe is enclosed construction, and bottom is hatch frame；
The side of casing has the second straight slot；
Be provided with the curved baffle for closing the first straight slot between casing and cap body, the side of the curved baffle with
Straight baffle is fixedly connected；
The other side of curved baffle is fixedly connected with one end of elastomeric element, and the other end and the connecting plate of elastomeric element are fixed
Connection；
The straight baffle protrudes from the cap body.
Wherein, the curved baffle is used to be formed with cap body and casing and seal；The straight baffle is used to coordinate shape with cap body
At sealing.Meanwhile first straight slot and the second straight slot coincide.
Preferably, the elastomeric element is between casing and cap body.
Preferably, the elastomeric element is spring (preferably compression spring).
Preferably, the elastomeric element is elastic adhesive tape.
Preferably, the radian of round angle corresponding to first straight slot is 150-170 °.
Preferably, the curved baffle, connecting plate, cap body and casing are plastic material.
Preferably, the curved baffle close to one end of elastomeric element on the first inclined-plane, casing with described
Second inclined-plane of one inclined plane part cooperation.
The beneficial effects of the invention are as follows:
(1) it is both provided with straight slot in cap body and casing so that cap body becomes radial when returning set from axial relative movement
Relative motion avoids back the risk for stabbing risk and puncture portion scraping plastic grain existing during covering.
(2) curved baffle and straight baffle cooperatively form sealing under the action of elastomeric element with cap body and casing so that this
Closed circle is collectively formed with internal surface of sleeve pipe in invention curved baffle under the premise of no external force, then the present invention is fastened in existing
After the isometrical portion of syringe needle, syringe needle puncture portion is in seal chamber, will not be contaminated, and working specification requirement is met.
Description of the drawings
Fig. 1 is the structural schematic diagram for the existing syringe that background of invention part refers to；
Fig. 2 is the structural schematic diagram for the existing syringe needle that background technology part refers in the present invention；
Fig. 3 is the structural schematic diagram of the present invention；
Fig. 4 is the structural schematic diagram of needle cap in the present invention；
Fig. 5 is sectional view along A-A in Fig. 4；
Fig. 6 is the partial enlarged view at B in Fig. 5；
Fig. 7 is the structural schematic diagram of the present invention in the on state；
Fig. 8 is the upward view of Fig. 7；
Wherein：
Needle cap 1, syringe needle 2, cylinder 3, piston 4；
Puncture portion 211, interconnecting piece 212, varying diameter portion 213, isometrical portion 214, male part 215；
Needle cap 5, syringe needle 6, cylinder 7, piston 8；
Cap body 521, straight baffle 522, curved baffle 523, casing 524, connecting plate 525, elastomeric element 526, the first straight slot
527, the second straight slot 528, the first inclined-plane 529, the second inclined-plane 530.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is described in detail.
Embodiment：A kind of novel injector, structure as shown in figures 3-8, including：
Needle cap 5, syringe needle 6, cylinder 7 and piston 8；
Needle cap 5 includes cap body 521, and cap body 521 is hollow cylindrical structure, and the top of cap body 521 is enclosed construction,
Bottom is hatch frame；
The side of cap body 521 has the first straight slot 527；
The inner wall of the cap body 521 is fixedly connected by 4 connecting plates 525 with casing 524；
The top of described sleeve pipe 524 is enclosed construction, and bottom is hatch frame；
The side of casing 524 has the second straight slot 528；
First straight slot 527 and the second straight slot 528 enter the channel inside cap body 521 as 6 puncture portion of syringe needle jointly.
The curved baffle 523 for closing the first straight slot 527, the arc are provided between casing 524 and cap body 521
The side (exposed side) of baffle 523 is fixedly connected with straight baffle 522；The other side of curved baffle 523 and the one of elastomeric element 526
End is fixedly connected, and the other end of elastomeric element 526 is fixedly connected with connecting plate 525.
The straight baffle 522 protrudes from the cap body 521, convenient to apply external force to straight baffle 522.
Shown in referring again to Fig. 5, the left lower of the curved baffle 523 is used to coordinate shape with the left part of casing 524
At sealing；The right upper portion of curved baffle 523 is used to cooperatively form sealing with the inner wall of cap body 521；The right side of curved baffle 523
Lower part is used to cooperatively form sealing with the right part of casing 524.
Shown in Fig. 6 and Fig. 8, the lower right side of curved baffle 523 has the first inclined-plane 529, the first inclined-plane 529
Close to elastomeric element 526；524 right side of casing has the second inclined-plane 530, and the second inclined-plane 530 is adapted with the first inclined-plane 529.
Elastomeric element 526 is between casing 524 and cap body 521.According to different needs, elastomeric element 526 can be bullet
Spring (preferably compression spring) or elastic adhesive tape.
Meanwhile the radian of round angle corresponding to first straight slot 527 is 150 ° -170 °.
For can deformation and with from the point of view of preferable toughness, the curved baffle 523, connecting plate 525, cap body
521 and casing 524 be plastic material.
With reference to shown in figure 3-6, under the premise of no external force, elastomeric element 526 applies elastic force to curved baffle 523, then
The left lower of curved baffle 523 just contacts to form sealing with the left end of casing 524, the lower right side and set of curved baffle 523
The right end of pipe 524 forms sealing, and the right upper portion of curved baffle 523 is formed with cap body 521 to be sealed.Again because of curved baffle 523
It is fixedly connected with straight baffle 522, so the left side of straight baffle 522 is in contact to form sealing with the left side of cap body 521.So far, arc
Closed circle is collectively formed with the inner wall of casing 524 in the inner wall of shape baffle 523.
Then puncture portion 211 is just completely encapsulated in closed cavity by the present invention after being placed in isometrical portion 214.
Before making up a prescription, the present invention is removed from syringe needle, then makes up a prescription.After the completion of making up a prescription, the right hand centre of the palm holds cap body
521, hand thumb applies clockwise power to straight baffle 522, and opposite sliding just occurs for the first inclined-plane 529 and the second inclined-plane 530,
Then straight baffle 522 just compresses elastomeric element 526, and curved baffle 523 enters between cap body 521 and casing 524, then the second straight slot
528 are exposed, and show Fig. 7 and open state shown in Fig. 8.
Then, left hand holds needle, and right hand transverse shifting makes puncture portion 211 pass through the first straight slot 527 and the second straight slot 528, then
Firmly the lower part of cap body 521 is fastened in the isometrical portion 214 of syringe needle, unclamps again the right hand.After loosing one's grip, it is applied to straight baffle
External force on 522 disappears, and return under the action of elastomeric element 526 of straight baffle 522 is showed shown in Fig. 3-6 and sealed again
State.
At this point, carrying syringe to ward, the present invention is then removed, is injected intravenously.After the completion of intravenous injection,
Present invention connection syringe is abandoned together.
For existing needle cap, innovation is the present invention：
(1) the creative side wall designed in cap body 521 has the structure of opening, and cap body 521 is allow to move radially
It is fastened on syringe needle, during moving radially, the puncture portion of syringe needle reaches set after the first straight slot 527 and the second straight slot 528
524 center of pipe, but do not connect with casing 524, cap body 521, curved baffle 523 and straight baffle 522 in syringe needle puncture portion moving process
It touches, puncture portion can be kept to clean.
(2) it avoids in the prior art, because syringe needle is scraped with stabbing present in needle cap relative axial movement and syringe needle
Wipe the risk of needle cap inner wall.
(3) curved baffle 523 is closed automatically after returning set so that syringe needle puncture portion is from the mistake shifted with coyote hole to ward
Always it is in air-tight state in journey, syringe needle can be avoided contaminated.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to consistent with principles disclosed herein and feature
Widest range.
Claims (7)
1. a kind of novel injector, including needle cap, syringe needle, cylinder and piston；
It is characterized in that, needle cap includes cap body, cap body is hollow cylindrical structure；
Hollow cylindrical type cap body；
The top of the cap body is enclosed construction, and bottom is hatch frame；
The side of cap body has the first straight slot；
The inner wall of the cap body is fixedly connected by connecting plate with casing；
The top of described sleeve pipe is enclosed construction, and bottom is hatch frame；
The side of casing has the second straight slot；
The curved baffle for closing the first straight slot, the side of the curved baffle and straight gear are provided between casing and cap body
Plate is fixedly connected；
The other side of curved baffle is fixedly connected with one end of elastomeric element, and the other end of elastomeric element is fixed with connecting plate to be connected
It connects；
The straight baffle protrudes from the cap body.
2. novel injector according to claim 1, which is characterized in that the elastomeric element be located at casing and cap body it
Between.
3. novel injector according to claim 1, which is characterized in that the elastomeric element is spring.
4. novel injector according to claim 1, which is characterized in that the elastomeric element is elastic adhesive tape.
5. novel injector according to claim 1, which is characterized in that the radian of round angle corresponding to first straight slot
It is 150-170 °.
6. novel injector according to claim 1, which is characterized in that the curved baffle, connecting plate, cap body and casing
It is plastic material.
7. novel injector according to claim 1, which is characterized in that the curved baffle is close to one end of elastomeric element
With on the first inclined-plane, casing with the second inclined-plane coordinated with first inclined plane part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720503175.3U CN207928549U (en) | 2017-05-08 | 2017-05-08 | A kind of novel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720503175.3U CN207928549U (en) | 2017-05-08 | 2017-05-08 | A kind of novel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207928549U true CN207928549U (en) | 2018-10-02 |
Family
ID=63645011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720503175.3U Expired - Fee Related CN207928549U (en) | 2017-05-08 | 2017-05-08 | A kind of novel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207928549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107149712A (en) * | 2017-05-08 | 2017-09-12 | 崔玉合 | A kind of novel injector |
-
2017
- 2017-05-08 CN CN201720503175.3U patent/CN207928549U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107149712A (en) * | 2017-05-08 | 2017-09-12 | 崔玉合 | A kind of novel injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20190508 |