CN208114881U - A kind of disposable syringe easy to use - Google Patents
A kind of disposable syringe easy to use Download PDFInfo
- Publication number
- CN208114881U CN208114881U CN201720745830.6U CN201720745830U CN208114881U CN 208114881 U CN208114881 U CN 208114881U CN 201720745830 U CN201720745830 U CN 201720745830U CN 208114881 U CN208114881 U CN 208114881U
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- pintle
- wall
- cylinder
- needle
- needle cap
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Abstract
The utility model relates to field of medical article technology, more particularly to a kind of disposable syringe easy to use, including cylinder, syringe needle and needle cap, the syringe needle includes needle tubing and the pintle that is connected with the needle tubing, the inner barrel is provided with piston, the piston is connected with piston rod, the outer wall of the piston and the inner wall of the cylinder are slidably matched, the front end of the cylinder is provided with connector, the connector is removably connect with the pintle, the pintle is removably connect with needle cap, the outer wall of the pintle is provided with the first external screw thread, the inner wall of needle cap is provided with the first internal screw thread, first external screw thread is matched with the first internal screw thread.Use the beneficial effects of the utility model for：The contact solved between the needle cap and pintle of traditional disposable syringe part is very close, so that pintle is not easy to be separated with needle cap, it increases the workload of medical worker and reduces the injection efficiency of medical worker, while when medical worker is extracted pintle with hand from needle cap is easy the problem of stabbing medical worker's finger.
Description
Technical field
The utility model relates to field of medical article technology, especially a kind of disposable syringe easy to use.
Background technique
Syringe is one of common medical supplies, and the syringe clinically used at present is commonly disposable syringe, should
The connector for connecting pintle and front end of the syringe needle is just attached by class syringe before factory, while being connected to protect with pintle
The needle tubing connect, which is not damaged, is usually arranged one for covering the needle cap of needle tubing, the i.e. part of syringe adapter in the external of pintle
The internal partial wall of outer wall and pintle is in close contact, and the outer wall of part pintle and the inner wall of part needle cap are in close contact, to realize
Connection between needle cap, pintle and syringe.
Medical worker's discovery in actual clinical work, during using the disposable syringe, part injector
Needle cap and pintle between contact it is very close, to cause pintle and the phenomenon that needle cap is not readily separated.When medical worker will
Towards when pulling out far from the direction of syringe and remove needle cap, pintle is kept completely separate needle cap with syringe, but pintle is appointed and is so embedded in
In needle cap.In order to take out pintle from needle cap, medical worker usually holds needle cap end with a hand, and another hand holds needle
Bolt end simultaneously firmly pulls out pintle towards the direction far from needle cap, so that pintle be pulled out from needle cap.Such mode is not only
It increases the workload of medical worker and reduces the injection efficiency of medical worker.In addition, the wink after firmly extracting pintle
Between, since the inertia of medical worker's finger bounces back, needle tubing is with the retraction of medical worker's finger and towards medical worker's another
The direction of hand moves, to be easy to stab medical worker's finger.
Utility model content
The goal of the invention of the utility model is：For traditional disposable syringe part existing in the prior art
Contact between needle cap and pintle is very close, so that pintle is not easy to be separated with needle cap, increases medical worker's
Workload and the injection efficiency for reducing medical worker, while when medical worker is extracted pintle with hand from needle cap, is easy to stab
The problem of medical worker's finger, provides a kind of disposable syringe easy to use.
To achieve the goals above, the technical solution adopted in the utility model is：
A kind of disposable syringe easy to use, including cylinder, syringe needle and needle cap, the syringe needle include needle tubing and
The pintle being connected with the needle tubing, the inner barrel are provided with piston, and the piston is connected with piston rod, the piston
The inner wall of outer wall and the cylinder be slidably matched, the front end of the cylinder is provided with connector, and the connector and the pintle can
The connection of disassembly, the pintle are removably connect with needle cap, and the outer wall of the pintle is provided with the first external screw thread, described
The inner wall of needle cap is provided with the first internal screw thread, and first external screw thread is matched with the first internal screw thread.
The first external screw thread is set by the outer wall in the pintle, and outside the setting of the inner wall of needle cap is with described first
The first internal screw thread that screw thread matches, so that being screwed connection between the pintle and needle cap.When needing to pintle and needle
When cap is separated, pintle and needle cap are relatively rotated into the separation that can be realized to the pintle and needle cap.Make to solve
It is very close due to contacting between needle cap and pintle when with traditional disposable syringe, so that pintle be caused to be not easy with needle cap
The problem of being separated, and then increasing the workload of medical worker and reduce the injection efficiency of medical worker.Due to right
During pintle is separated with needle cap, medical worker and unused hand extract pintle towards the direction far from needle cap, thus work as
Pintle will not occur medical worker's finger and cause needle tubing to stab showing for medical worker's finger because of inertia retraction when separating with needle cap
As.And then moment of the medical worker with hand by pintle after extracting in needle cap is also solved, due to the inertia of medical worker's finger
Retraction, needle tubing is moved with the retraction of medical worker's finger and towards the direction of medical worker's another hand, to be easy to stab
The problem of medical worker's finger.
Medical worker also found in actual operation, due to not tight enough because contacting between the pintle and needle cap of part injector
It is close, so that the pintle of syringe is separated with needle cap during being packed and being transported to syringe.When syringe with
Other articles are deposited in the case of crushing, so that causing pintle separates the phenomenon that rear needle tubing occurs bending and deformation with needle cap, into
And influence the normal use of syringe.
By the way that screwed connection will be used between the pintle and needle cap, so as to avoid pintle during transportation and needle cap
It separates, solves syringe and other articles are deposited in the case of crushing, pintle separates rear needle tubing with needle cap and bends
Deformation is thus the problem of influencing the normal use of syringe.
Preferably, the outer wall close to the needle cap of the pintle side convexes to form the towards the direction away from needle cap
One convex mechanism.
Most of disposable syringe is made of plastic material at present, and tensile strength is lower and brittleness is higher, needle
After bolt is connect with needle cap, if junction is there are when external force, pintle outer wall will generate extruding to needle cap inner wall, so that junction
Needle cap the phenomenon that being easy to appear rupture.
Outer wall by will be close to the needle cap of the pintle side convexes to form the towards the direction away from needle cap
One convex mechanism, first convex mechanism play the role of reinforcing needle cap, to work as the connection of pintle and needle cap
Place is there are when external force, and pintle outer wall generates squeezing action to needle cap inner wall, and the junction that not will cause needle cap ruptures.
Preferably, the outer wall close to the pintle of the cylinder side convexes to form the second convex mechanism, institute towards surrounding
It states the second convex mechanism to separate with needle cap, the section of first convex mechanism and the second convex mechanism is polygon.
Outer wall by will be close to the pintle of the cylinder side convexes to form the second convex mechanism towards surrounding, thus
Play the role of reinforcing pintle, avoids the phenomenon that rupturing when pintle is connect with syringe adapter.Meanwhile by
In the section for being formed by the first convex mechanism and the second convex mechanism be polygon, thus in connecting to needle cap and pintle
When connecing or separating, opposite turn can be stated after the first convex mechanism and second convex mechanism with the tool holders such as spanner or clip residence
It is dynamic.So that the connection between pintle and needle cap is even closer, and the separation between pintle and needle cap is also more convenient.
Preferably, the outer wall of the connector is provided with external screw thread second, and the inner wall of the pintle is provided with and the outer spiral shell
The second internal screw thread that line second matches.
The second external screw thread is set by the outer wall in the connector, and outside the setting of the inner wall of the pintle is with described second
The second internal screw thread that screw thread matches, to make needing to carry out pintle and connector for screwed connection between connector and pintle
When connecting or separating, pintle opposing tabs need to only be rotated.It avoids in the case where pintle and junction contacts are more loose, needle
Bolt is easy to separate with connector, while solving in the case where pintle and relatively tight junction contacts, needs to remove after the completion of injection
When syringe needle, the problem of pintle is separated into relative difficulty with connector.
Preferably, first external screw thread and described second externally threaded oppositely oriented.
By setting first external screw thread and the described second externally threaded rotation direction on the contrary, so that by the needle
It is tight condition between the pintle and the connector when cap and the pintle are unscrewed, to be more convenient for pair
Needle cap is separated with the pintle.
Preferably, the limitation swung for limiting the piston rod towards the cylinder inboard wall direction is provided on the cylinder
Mechanism.
The internal diameter and piston for being much smaller than the cylinder due to the outer diameter of the piston rod of traditional syringe are by flexible material system
At, thus when drawing drug using syringe when pulling piston rod, or push piston rod being injected using syringe
When, it is easy to appear the phenomenon that piston rod is swung towards the direction of cylinder inboard wall, so that medical worker be caused to inject to patient
Shi Wufa at the uniform velocity injects drug, and then influences the plastic injection quality of medical worker.
By the way that the limitation machine swung for limiting the piston rod towards the cylinder inboard wall direction is arranged on the cylinder
Structure limits the piston rod and swings towards the cylinder inboard wall direction, solves when using syringe piston rod towards in cylinder
Wall direction swings to cause medical worker that can not at the uniform velocity inject drug when injecting patient, and then influences doctor
The problem of plastic injection quality of business personnel.
Preferably, the limiting structure includes the confinement block being set on the inside of the cylinder, and the confinement block is tubulose knot
Structure, the outer wall of the confinement block and the inner wall of the cylinder fit, the inner wall of the outer wall of the piston rod and the confinement block
It is slidably matched, is provided with through-hole on the confinement block.
Using before syringe, after the packaging for removing syringe exterior, exist cannot immediately by syringe carry out using
Situation, since there are certain intervals between cylinder inboard wall and piston rod outer wall, thus when syringe exposes in air, air
In bacterium and dust can gap between cylinder and piston rod and enter cylinder inboard wall, to cause dirt to syringe
Dye.Medical worker usually contacts the thumb of palm and index finger with the opening of cylinder when drawing drug using syringe, and
Piston rod is pulled back using little finger of toe, and then draws drug.Due to inevitably there is bacterium on the palm of medical worker, thus as doctor
When contact at the finger and cartridge openings of business personnel, bacterium will enter inner barrel, Jin Ercun from cartridge openings
In the contamination phenomenon to syringe.
The confinement block is set on the inside of the cylinder, the outer wall of the confinement block and the inner wall of the cylinder are affixed
It closes, and the outer wall of the piston rod and the inner wall of the confinement block is made to be slidably matched, both limited piston rod towards cylinder inboard wall
Direction is swung, and has filled up the gap between cylinder inboard wall and piston rod outer wall, while blocking bacterium and entering cylinder inboard wall.From
And the problem of solving the syringe after removing packaging, exposing the bacterium being easy in air by air and dust pollution, together
When also solve medical worker and contacted at finger and cartridge openings when drawing drug so that the bacterium on finger enters in cylinder
The problem of portion pollutes syringe.
Preferably, annular groove is provided on the outer wall of the connector, the annular groove is located at the outside of needle cap.
After completing to inject patient, in order to which syringe is not repeated utilization, usual way is first will be on connector
Syringe needle remove, avoid needle tubing from stabbing people, then piston rod fracture, thus achieve the purpose that destroy syringe.Pass through
Fracture piston rod so that destroy syringe mode, the piston rod rear cylinder body that fractures be also possible that by criminal obtain to
It is utilized again, and when the needle cap of syringe needle and junction contacts are closer, removes syringe needle relative difficulty.
By the way that annular groove is arranged on the connector, along the annular groove, butt joint progress is curved after the completion of injection
Folding, can easily fracture connector, so that syringe can not be connect with syringe needle again, and then reach the mesh for destroying syringe
's.Meanwhile it fractureing and also achieving the separation of syringe needle and cylinder after connector.
Preferably, first external screw thread is varying pitch section close to the part of cylinder, and the screw pitch court of the varying pitch section leans on
The direction of the nearly cylinder is gradually reduced.
By setting varying pitch section close to the part of cylinder for first external screw thread, and make the spiral shell of the varying pitch section
Away from being gradually reduced towards close to the direction of the cylinder, so that the connection between needle cap and the pintle is even closer,
Avoid between the pintle and needle cap that there is a phenomenon where loosen.Since the first external screw thread only a fraction is to become spiral shell
Away from section, thus when needing to unscrew needle cap, thus unscrew the process relative ease of needle cap.
Compared with prior art, the beneficial effects of the utility model are：Solves traditional disposable syringe part
Contact between needle cap and pintle is very close, so that pintle is not easy to be separated with needle cap, increases medical worker's
Workload and the injection efficiency for reducing medical worker, while when medical worker is extracted pintle with hand from needle cap, is easy to stab
The problem of medical worker's finger.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model；
Fig. 2 is the schematic diagram of the utility model syringe needle；
Fig. 3 is the schematic diagram of the utility model needle cap,
It is marked in figure：1- cylinder, 2- syringe needle, 3- needle cap, 4- needle tubing, 5- pintle, 6- piston, 7- piston rod, 8- connector, 9-
First convex mechanism, the second convex of 10- mechanism, 11- confinement block, 12- through-hole, 13- annular groove.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, a kind of disposable syringe easy to use, it is characterised in that：Including cylinder 1, syringe needle 2 and needle
Cap 3, the syringe needle 2 are internally provided with piston 6 including needle tubing 4 and the pintle 5 being connected with the needle tubing 4, the cylinder 1,
The piston 6 is connected with piston rod 7, and the outer wall of the piston 6 and the inner wall of the cylinder 1 are slidably matched, the cylinder 1
Front end is provided with connector 8, and the connector 8 is removably connect with the pintle 5, and the pintle 5 and needle cap 3 are dismountable
Connection, the outer wall of the pintle 5 are provided with the first external screw thread, and the inner wall of needle cap 3 is provided with the first internal screw thread, and described first
External screw thread is matched with the first internal screw thread.
First external screw thread is set by the outer wall in the pintle 5, and in the inner wall of needle cap 3 setting and described first
The first internal screw thread that external screw thread matches, so that being screwed connection between the pintle 5 and needle cap 3.When needing to pintle 5
When being separated with needle cap 3, pintle 5 and needle cap 3 are relatively rotated to the separation that can be realized to the pintle 5 and needle cap 3.To
It is very close due to contacting between needle cap 3 and pintle 5 when solving using traditional disposable syringe, to cause pintle 5
It is not easy to be separated with needle cap 3, and then increases the workload of medical worker and reduce asking for the injection efficiency of medical worker
Topic.Due to during separating to pintle 5 with needle cap 3, medical worker and unused hand are by pintle 5 towards far from needle cap 3
Direction is extracted, thus medical worker's finger will not occur when pintle 5 is separated with needle cap 3 and cause needle tubing 4 to prick because of inertia retraction
The phenomenon that hurting medical worker's finger.And then moment of the medical worker with hand by pintle 5 after extracting in needle cap 3 is also solved, by
It bounces back in the inertia of medical worker's finger, needle tubing 4 is with the retraction of medical worker's finger and towards medical worker's another hand
Direction movement, to be easy the problem of stabbing medical worker's finger.
Medical worker also found in actual operation, due to inadequate because contacting between the pintle 5 and needle cap 3 of part injector
Closely, so that during being packed and being transported to syringe, the pintle 5 of syringe is separated with needle cap 3.Work as injection
Device and other articles are deposited in the case of crushing, so that causing pintle 5 separates what rear needle tubing 4 occured bending and deformation with needle cap 3
Phenomenon, and then influence the normal use of syringe.
By will between the pintle 5 and needle cap 3 use screwed connection, so as to avoid pintle 5 during transportation with
Needle cap 3 separates, and solves syringe and other articles are deposited in the case of crushing, pintle 5 separates rear needle tubing 4 with needle cap 3
Occur bending and deformation the problem of influencing the normal use of syringe.
Embodiment 2
On the basis of the disposable syringe being easy to use as described in Example 1, further, close to the pintle
The outer wall of the needle cap 3 of 5 sides convexes to form the first convex mechanism 9 towards the direction away from needle cap 3.
Most of disposable syringe is made of plastic material at present, and tensile strength is lower and brittleness is higher, needle
After bolt 5 is connect with needle cap 3, if junction is there are when external force, 5 outer wall of pintle will generate extruding to 3 inner wall of needle cap, so that even
The phenomenon that needle cap at the place of connecing is easy to appear rupture.
Outer wall by will be close to the needle cap 3 of 5 side of pintle is convexed to form towards the direction away from needle cap 3
First convex mechanism 9, first convex mechanism 9 play the role of reinforcing needle cap 3, thus when pintle 5 and needle cap 3
Junction there are when external force, 5 outer wall of pintle generates squeezing action to 3 inner wall of needle cap, and the junction that not will cause needle cap 3 occurs
Rupture.
Embodiment 3
On the basis of the disposable syringe being easy to use as described in Example 2, further, close to the cylinder
The outer wall of the pintle 5 of 1 side convexes to form the second convex mechanism 10, second convex mechanism 10 and the needle towards surrounding
Cap 3 separates, and the section of first convex mechanism 9 and the second convex mechanism 10 is polygon.
Outer wall by will be close to the pintle 5 of 1 side of cylinder convexes to form the second convex mechanism 10 towards surrounding,
To play the role of reinforcing pintle 5, the phenomenon that rupturing when pintle 5 is connect with syringe adapter 8 is avoided.
Simultaneously as the section for being formed by first convex mechanism 9 and the second convex mechanism 10 is polygon, thus to needle cap
3 and when being attached or separating of pintle 5, the first convex mechanism 9 and described the can be stated with the tool holders such as spanner or clip residence
It is relatively rotated after two convex mechanisms 10.So that the connection between pintle 5 and needle cap 3 is even closer, and pintle 5 and needle
Separation between cap 3 is also more convenient.
Embodiment 4
On the basis of the disposable syringe being easy to use as described in Example 1, further, the connector 8
Outer wall is provided with the second external screw thread, and the inner wall of the pintle 5 is provided with the second internal screw thread matched with second external screw thread.
Second external screw thread is set by the outer wall in the connector 8, and in the inner wall of the pintle 5 setting and described second
The second internal screw thread that external screw thread matches, to make needing for screwed connection to pintle 5 and connector between connector 8 and pintle 5
8 when being attached or separating, and need to only rotate 5 opposing tabs 8 of pintle.Avoid in pintle 5 contacted with connector 8 it is more loose
In the case of, pintle 5 is easy to separate with connector 8, while solving in the case where contact in pintle 5 with connector 8 relatively tightly, when having injected
When needing to remove syringe needle 2 after, the problem of pintle 5 is separated into relative difficulty with connector 8.
Embodiment 5
On the basis of the disposable syringe being easy to use as described in Example 4, further, the first outer spiral shell
Line is externally threaded oppositely oriented with described second.
By setting first external screw thread and the described second externally threaded rotation direction on the contrary, so that by the needle
It is tight condition between the pintle 5 and the connector 8, thus more convenient when cap 3 and the pintle 5 are unscrewed
Needle cap 3 separated with the pintle 5.
Embodiment 6
On the basis of the disposable syringe being easy to use as described in Example 1, further, on the cylinder 1
It is provided with the limiting mechanism swung for limiting the piston rod 7 towards the 1 inner wall direction of cylinder.
The internal diameter and piston 6 for being much smaller than the cylinder 1 due to the outer diameter of the piston rod 7 of traditional syringe are by flexible material
It is made, thus when drawing drug using syringe when pulling piston rod 7, or push piston being injected using syringe
When bar 7, it is easy to appear the phenomenon that piston rod 7 is swung towards the direction of 1 inner wall of cylinder, so that medical worker be caused to carry out to patient
Drug can not at the uniform velocity be injected when injection, and then influence the plastic injection quality of medical worker.
By the way that the limitation swung for limiting the piston rod 7 towards the 1 inner wall direction of cylinder is arranged on the cylinder 1
Mechanism limits the piston rod 7 and swings towards the 1 inner wall direction of cylinder, solves when using syringe piston rod 7 towards cylinder
Internal wall direction swings to cause medical worker that can not at the uniform velocity inject drug when injecting patient, Jin Erying
The problem of ringing the plastic injection quality of medical worker.
Embodiment 7
On the basis of the disposable syringe being easy to use as described in Example 6, further, the limiting structure
Confinement block 11 including being set to 1 inside of the cylinder, the confinement block 11 are tubular structure, the outer wall of the confinement block 11 with
The inner wall of the cylinder 1 fits, and the outer wall of the piston rod 7 and the inner wall of the confinement block 11 are slidably matched, the limitation
Through-hole 12 is provided on block 11.
Using before syringe, after the packaging for removing syringe exterior, exist cannot immediately by syringe carry out using
Situation, it is empty since there are certain intervals between 7 outer wall of 1 inner wall of cylinder and piston rod, thus when syringe exposes in air
Bacterium and dust in gas can gap between cylinder 1 and piston rod 7 and enter 1 inner wall of cylinder, to be made to syringe
At pollution.Medical worker usually connects the opening of the thumb of palm and index finger and cylinder 1 when drawing drug using syringe
Touching, and pulled back piston rod 7 using little finger of toe, and then draw drug.Due to inevitably there is bacterium on the palm of medical worker, because
And when the finger of medical worker and 1 opening of cylinder contact, bacterium will enter in cylinder 1 from 1 opening of cylinder
Portion, and then there is the contamination phenomenon to syringe.
The confinement block 11 is set to 1 inside of the cylinder, makes the interior of the outer wall of the confinement block 11 and the cylinder 1
Wall fits, and the outer wall of the piston rod 7 and the inner wall of the confinement block 11 is made to be slidably matched, and has both limited 7 court of piston rod
The direction of 1 inner wall of cylinder is swung, and has filled up the gap between 7 outer wall of 1 inner wall of cylinder and piston rod, at the same block bacterium into
Enter 1 inner wall of cylinder.To solve the syringe after removing packaging, the bacterium being easy in air by air and dust are exposed
The problem of pollution, while also solving medical worker's finger when drawing drug and being contacted with 1 opening of cylinder, so that on finger
Bacterium enters inside cylinder 1 the problem of polluting to syringe.
Embodiment 8
On the basis of the disposable syringe easy to use as described in any one of embodiment 1 to 7, further
, annular groove 13 is provided on the outer wall of the connector 8, the annular groove 13 is located at the outside of needle cap 5.
After completing to inject patient, in order to which syringe is not repeated utilization, usual way is first will be on connector 5
Syringe needle 2 remove, avoid needle tubing 4 from stabbing people, then piston rod 7 fracture, thus achieve the purpose that destroy syringe.It is logical
The mode for crossing fracture piston rod 7 and then destruction syringe, in 7 rear cylinder body 1 of piston rod that fractures it is also possible that being obtained by criminal
To again be utilized, and when the needle cap of syringe needle 25 contacts closer with connector 8, remove 2 relative difficulty of syringe needle.
By the way that annular groove 13, the butt joint 8 along the annular groove 13 after the completion of injection are arranged on the connector 8
It is bent, easily connector 8 can be fractureed, so that syringe can not be connect with syringe needle 2 again, and then reached destruction injection
The purpose of device.Meanwhile it fractureing and also achieving the separation of syringe needle 2 Yu cylinder 1 after connector 8.
Embodiment 9
On the basis of the disposable syringe easy to use as described in any one of embodiment 1 to 7, further
, first external screw thread is varying pitch section close to the part of cylinder 1, and the screw pitch of the varying pitch section is towards close to the cylinder 1
Direction be gradually reduced.
By setting varying pitch section close to the part of cylinder for first external screw thread, and make the spiral shell of the varying pitch section
Away from being gradually reduced towards the direction close to the cylinder 1, so that the connection between needle cap 3 and the pintle 5 more steps up
It is close, avoid between the pintle 5 and needle cap 3 that there is a phenomenon where loosen.Due to the first external screw thread only a fraction
For varying pitch section, thus unscrew the process relative ease of needle cap 3.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (6)
1. a kind of disposable syringe easy to use, it is characterised in that：Including cylinder (1), syringe needle (2) and needle cap (3), institute
Stating syringe needle (2) includes needle tubing (4) and the pintle (5) being connected with the needle tubing (4), and the cylinder (1) is internally provided with work
It fills in (6), the piston (6) is connected with piston rod (7), and the outer wall of the piston (6) is matched with the inner wall sliding of the cylinder (1)
It closes, the front end of the cylinder (1) is provided with connector (8), and the connector (8) removably connect with the pintle (5), the needle
Bolt (5) is removably connect with needle cap (3), and the outer wall of the pintle (5) is provided with the first external screw thread, needle cap (3)
Inner wall be provided with the first internal screw thread, first external screw thread is matched with the first internal screw thread, the setting of the outer wall of the connector (8)
There is the second external screw thread, the inner wall of the pintle (5) is provided with the second internal screw thread matched with second external screw thread, and described
One external screw thread is externally threaded oppositely oriented with described second, is provided with annular groove (13) on the outer wall of the connector (8), described
Annular groove (13) is located at the outside of needle cap (3).
2. disposable syringe easy to use according to claim 1, it is characterised in that：Close to the pintle (5) one
The outer wall of the needle cap (3) of side convexes to form the first convex mechanism (9) towards the direction away from needle cap (3).
3. disposable syringe easy to use according to claim 2, it is characterised in that：Close to the cylinder (1) one
The outer wall of the pintle (5) of side convexes to form the second convex mechanism (10), second convex mechanism (10) and institute towards surrounding
It states needle cap (3) to separate, the section of first convex mechanism (9) and the second convex mechanism (10) is polygon.
4. disposable syringe easy to use according to claim 1, it is characterised in that：It is arranged on the cylinder (1)
There is the limiting mechanism swung for limiting the piston rod (7) towards the cylinder (1) inner wall direction.
5. disposable syringe easy to use according to claim 4, it is characterised in that：The limiting mechanism includes setting
The confinement block (11) being placed on the inside of the cylinder (1), the confinement block (11) are tubular structure, the outer wall of the confinement block (11)
It fitting with the inner wall of the cylinder (1), the inner wall of the outer wall and the confinement block (11) of the piston rod (7) is slidably matched,
Through-hole (12) are provided on the confinement block (11).
6. disposable syringe easy to use as claimed in any of claims 1 to 5, it is characterised in that：It is described
First external screw thread is varying pitch section close to the part of cylinder (1), and the screw pitch of the varying pitch section is towards the side close to the cylinder (1)
To being gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720745830.6U CN208114881U (en) | 2017-06-26 | 2017-06-26 | A kind of disposable syringe easy to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720745830.6U CN208114881U (en) | 2017-06-26 | 2017-06-26 | A kind of disposable syringe easy to use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208114881U true CN208114881U (en) | 2018-11-20 |
Family
ID=64207971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720745830.6U Expired - Fee Related CN208114881U (en) | 2017-06-26 | 2017-06-26 | A kind of disposable syringe easy to use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208114881U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020000131A1 (en) * | 2018-06-25 | 2020-01-02 | 江苏采纳医疗科技有限公司 | Nutrition syringe cap |
| CN113663172A (en) * | 2021-07-21 | 2021-11-19 | 皖南医学院 | Double-helix reverse design improved injector |
-
2017
- 2017-06-26 CN CN201720745830.6U patent/CN208114881U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020000131A1 (en) * | 2018-06-25 | 2020-01-02 | 江苏采纳医疗科技有限公司 | Nutrition syringe cap |
| CN113663172A (en) * | 2021-07-21 | 2021-11-19 | 皖南医学院 | Double-helix reverse design improved injector |
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Granted publication date: 20181120 Termination date: 20200626 |