CN213131316U - Safe insulin pen - Google Patents
Safe insulin pen Download PDFInfo
- Publication number
- CN213131316U CN213131316U CN202020455516.6U CN202020455516U CN213131316U CN 213131316 U CN213131316 U CN 213131316U CN 202020455516 U CN202020455516 U CN 202020455516U CN 213131316 U CN213131316 U CN 213131316U
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- CN
- China
- Prior art keywords
- needle
- pen
- pen core
- nut
- refill
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- Expired - Fee Related
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Abstract
The utility model discloses a safety insulin pen, which comprises a pen body, a piston rod, an injection button, a pen core frame, a pen core and a needle seat, wherein the needle seat is connected with the pen core frame through screw threads, a needle head is fixed on the needle seat, and a ball screw is also arranged, wherein, the screw rod is sleeved outside the pen core along the axial direction, a nut can rotate and slide along the screw rod, the needle seat is connected with the bottom end of the pen core through relative rotation and screw threads to push a push rod to push the nut to move and compress a spring to drive an elastic expansion piece to move, so that the elastic expansion piece can penetrate out through a through hole and be clamped with the pen core frame, and simultaneously, the needle seat is penetrated through a sharp part, thereby realizing the fastening of the needle seat on the pen core to carry out injection operation, the elastic expansion piece is pressed in the pen core frame manually to push the nut to reset through the spring, so as to, the function of automatically removing the needle without contacting the needle is realized.
Description
Technical Field
The utility model relates to the field of medical equipment, especially indicate an insulin pen.
Background
For more serious diabetics, insulin needs to be injected every day, an insulin pen is a common insulin injection tool and is widely popularized and used, the main function of the insulin pen is to inject insulin into the diabetics through an injection device to achieve the purpose of controlling blood sugar of the diabetics, however, after the traditional insulin pen is injected, a needle needs to be manually disassembled, as the needle part is small, needle stick injuries are easy to occur in the operation process, or the needle stick is touched by mistake to cause cross infection, particularly for older patients or nursing staff needing frequent operation, the safety factor of needle disassembling operation is low, and the safety factor and the risk of infection are increased.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to a safety insulin pen to realize the function of automatically removing the needle without touching the needle.
Based on above-mentioned purpose the utility model relates to a safe type insulin pen, include:
the pen body is designed into a hollow structure;
the piston rod is arranged in the hollow pen body, and one end of the piston rod penetrates through the top end of the pen body;
the injection button is fixedly connected to one end, penetrating out of the top of the pen body, of the piston rod;
the top of the pen core frame is detachably connected with the bottom end of the pen body, and the pen core frame is designed to be of a hollow structure;
the pen core is arranged in the hollow pen core frame and used for storing liquid medicine, one end of the pen core penetrates through the bottom end of the pen core frame, and external threads are arranged on the side wall of one end, penetrating through the pen core frame, of the pen core;
the rubber film is hermetically fixed at the bottom end of the pen core;
the rubber piston is movably connected to the top end of the inner wall of the pen refill;
the inner wall of the needle base is provided with an internal thread matched with the external thread, and a needle head is fixed on the needle base and penetrates into the needle base;
the ball screw comprises a screw rod and a nut which are in threaded fit with each other, the screw rod is fixed at the bottom end of the refill frame, the screw rod is designed into a hollow structure and is sleeved outside the refill along the axial direction, and the nut can rotate and slide along the screw rod;
the through hole is arranged on the side wall of the refill holder;
the annular opening is arranged on the bottom wall of the refill frame;
one end of the spring is fixed on the screw rod, and the other end of the spring is fixed on the nut;
the push rod is fixed on the nut along the axial direction, and one end of the push rod penetrates through the annular opening;
the spine part is fixed at one end of the push rod penetrating through the annular opening;
the elastic expansion piece is fixed on the outer side wall of the nut;
through needle file and refill bottom relative rotation with threaded connection, can promote the push rod to promote nut motion and compression spring, in order to drive the elastic expansion piece motion, so that elastic expansion piece accessible through-hole is worn out and block refill frame, pierces the needle file through spine portion simultaneously, through pressing elastic expansion piece in refill frame, in order to promote the nut through the spring, in order to drive the needle file through spine portion on the push rod and unscrew.
Preferably, the outward end of the elastic expansion element is rounded.
Preferably, the elastic telescopic element is a spring thimble.
Preferably, the spike is designed as a cone.
Preferably, when the spring drives the push rod to be completely pushed out, the outward tail end of the spike part is positioned on the radial direction of the outward tail end of the external thread.
Preferably, the needle head penetrates out of the outer end of the needle seat to be provided with a needle sleeve.
Preferably, the side wall of the pen refill holder is provided with an observation window for observing the dosage of the liquid medicine.
From the above, the safety insulin pen designed by the utility model is provided with a pen body, a piston rod is arranged in the hollow pen body, an injection button is fixedly connected with one end of the piston rod penetrating the top of the pen body, a pen core is arranged in the hollow pen core frame and used for storing liquid medicine, an external thread is arranged on one end side wall of the pen core penetrating the pen core frame, a rubber film is fixed at the bottom end of the pen core in a sealing way, a rubber piston is movably connected at the top end of the inner wall of the pen core, an internal thread matched with the external thread is arranged on the inner wall of the needle seat, a needle head is fixed on the needle seat and penetrates the needle seat, so that the injection button can be manually pressed to drive the piston rod to push the rubber piston, the pen core moves towards the needle seat to enable the needle head to penetrate the rubber film, the rubber piston, wherein, the screw rod is sleeved outside the refill along the axial direction, the nut can rotate and slide along the screw rod, the side wall of the refill frame is provided with a through hole, the bottom wall of the refill frame is provided with an annular opening, the nut is axially fixed with a push rod, one end of the push rod penetrating through the annular opening is fixed with a spine part, the outer side wall of the nut is fixed with an elastic telescopic piece, when the needle seat and the bottom end of the refill rotate relatively to realize threaded connection, the needle seat can push the push rod to push the nut to move and compress a spring to drive the elastic telescopic piece to move, so that the elastic telescopic piece can penetrate through the through hole and clamp the refill frame, and simultaneously the needle seat is penetrated through the spine part, thereby realizing fastening the needle seat on the refill to carry out injection operation, the elastic telescopic piece is manually pressed in the refill frame, on the one hand, manual thrust can be beneficial to loosening the threaded connection between the, because spine portion pierces the needle file, the rotatory needle file that promotes of spine portion on the accessible push rod to drive the needle file and unscrew, realize need not to contact the function that the syringe needle can unload the syringe needle automatically, thereby can avoid being stabbed by the syringe needle, or the mistake touches the syringe needle and lead to cross infection, because the syringe needle of insulin pen often can not used repeatedly, to the patient or the nursing staff that need inject insulin for a long time, help promoting the security of operation and use.
Drawings
FIG. 1 is a schematic structural view of a needle holder and a cartridge holder in a fastened connection state according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the needle holder of the embodiment of the present invention in a detached state;
fig. 3 is a right side view of the annular opening of an embodiment of the present invention.
In the figure: the pen comprises a pen body 1, a piston rod 2, an injection button 3, a pen core frame 4, a through hole 41, an annular opening 42, an observation window 43, a pen core 5, a rubber film 51, a rubber piston 52, a needle seat 6, a needle 61, a needle sleeve 62, a ball screw 7, a screw rod 71, a nut 72, a spring 8, a push rod 9, a sharp part 91 and an elastic telescopic piece 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.
A safety insulin pen is disclosed, as shown in figures 1 to 3, comprising a pen body 1, wherein the pen body 1 is designed to be a hollow structure, a piston rod 2 is arranged in the hollow part of the pen body 1, one end of the piston rod 2 penetrates out of the top end of the pen body 1, one end of the piston rod 2 penetrating out of the top end of the pen body 1 is fixedly connected with an injection button 3, a pen core frame 4 is arranged, the top end of the pen core frame 4 is detachably connected with the bottom end of the pen body 1, the pen core frame 4 is designed to be a hollow structure, a pen core 5 is arranged in the hollow part of the pen core frame 4 and used for storing liquid medicine, one end of the pen core 5 penetrates out of the bottom end of the pen core frame 4, an external thread is arranged on one end side wall of the pen core 5 penetrating out of the pen core frame 4, a rubber film 51 is fixed at the bottom end of the pen core 5, the needle 61 penetrates into the needle seat 6 and is provided with a ball screw 7, the ball screw 7 comprises a screw 71 and a nut 72 which are mutually in threaded fit, the screw 71 is fixed at the bottom end of the cartridge holder 4, the screw 71 is designed to be a hollow structure and is axially sleeved outside the cartridge 5, the nut 72 can rotate and slide along the screw 71, the side wall of the cartridge holder 4 is provided with a through hole 41, the bottom wall of the cartridge holder 4 is provided with an annular opening 42 and is provided with a spring 8, one end of the spring 8 is fixed on the screw 71, the other end of the spring is fixed on the nut 72, a push rod 9 is axially fixed on the nut 72, one end of the push rod 9 penetrates through the annular opening 42, one end of the push rod 9 penetrating out of the annular opening 42 is fixed with a sharp thorn part 91, the outer side wall of the nut 72 is fixed with an elastic telescopic part 10, the needle seat 6 and the bottom end, so as to drive the elastic expansion piece 10 to move, so that the elastic expansion piece 10 can penetrate out through the through hole 41 and is clamped with the refill holder 4, and simultaneously the needle seat 6 is pierced through the spine part 91, and the nut 72 is pushed by the spring 8 in the refill holder 4 by pressing the elastic expansion piece 10, so that the needle seat 6 is driven to screw out through the spine part 91 on the push rod 9.
The utility model discloses a set up body 1, body 1 is hollow inside and is equipped with piston rod 2, piston rod 2 passes through the one end fixedly connected with injection button 3 at body 1 top, refill 5 is equipped with in the hollow inside of refill frame 4, be used for storing the liquid medicine, refill 5 is run through and is equipped with the external screw thread on the one end lateral wall of refill frame 4, refill 5 bottom seal is fixed with rubber membrane 51, refill 5 inner wall top swing joint has rubber piston 52, needle file 6 inner wall is equipped with the internal thread that matches with the external screw thread, be fixed with syringe needle 61 on the needle file 6, syringe needle 61 runs through into needle file 6, thereby can manually press injection button 3, in order to drive piston rod 2, in order to promote rubber piston 52, in order to make refill 5 move to needle file 6 direction, in order to make syringe needle 61 pierce rubber membrane 51, thereby can continue to promote rubber piston 52 through piston rod 2, in, the ball screw 7 is arranged, wherein the screw 71 is sleeved outside the refill 5 along the axial direction, the nut 72 can rotate and slide along the screw 71, the side wall of the refill holder 4 is provided with a through hole 41, the bottom wall of the refill holder 4 is provided with an annular opening 42, the nut 72 is axially fixed with a push rod 9, one end of the push rod 9 penetrating out of the annular opening 42 is fixed with a spine part 91, the outer side wall of the nut 72 is fixed with an elastic telescopic piece 10, when the needle seat 6 and the bottom end of the refill 5 rotate relatively to realize threaded connection, the needle seat 6 can push the push rod 9 to push the nut 72 to move and compress the spring 8 to drive the elastic telescopic piece 10 to move, so that the elastic telescopic piece 10 can penetrate out through the through hole 41 and be clamped with the refill holder 4, and simultaneously penetrate into the needle seat 6 through the spine part 91 to realize fastening of the needle seat 6 on the refill 5 to perform injection operation, and manually press the, on the one hand, the manual pushing force can be used, so that the threaded connection between the needle seat 6 and the refill 5 can be loosened, meanwhile, the nut 72 can be pushed to reset through the spring 8, the needle seat 6 is punctured through the sharp part 91, the needle seat 6 can be rotated and pushed through the sharp part 91 on the push rod 9, the needle seat 6 is driven to unscrew, the function of automatically removing the needle 61 without contacting the needle 61 is realized, the puncture caused by the needle 61 can be avoided, or the cross infection caused by mistaken contact of the needle 61 is avoided, the needle 61 of the insulin pen cannot be reused, and the safety of the use of the operation is improved for patients or nursing personnel needing to inject insulin for a long time.
The utility model discloses an in the embodiment, the design of elastic expansion piece 10 one end outwards is for the button head form, does benefit to manual press operation on the one hand, and on the other hand when driving elastic expansion piece 10 through nut 72 and rotate, does benefit to and reduces the frictional force between elastic expansion piece 10 and the 4 inner walls of refill frame.
In an embodiment of the present invention, the elastic expansion element 10 may be a pogo pin.
In the embodiment of the present invention, the spine 91 is designed as a cone.
The utility model discloses an in the embodiment, through spring 8 to when driving push rod 9 and releasing completely, spine portion 91 is located the terminal radial position outwards of external screw thread to the end outwards, thereby when making the internal thread of needle file 6 and refill 5's external screw thread break away from, spine portion 91 can just separate with needle file 6, in order to do benefit to and to dump needle file 6 and syringe needle 61, also can avoid spine portion 91 to extend 5 outer ends of refill simultaneously, so that the mistake touches the thorn wound.
In the embodiment of the present invention, the needle 61 penetrates the outer end of the needle seat 6 to form the needle sleeve 62, so as to achieve the effect of protecting and avoiding accidental touch and puncture.
In the embodiment of the utility model, the side wall of the pen refill holder 4 is provided with an observation window 43 for observing the dosage of the liquid medicine.
In the utility model discloses a safe insulin pen, during the use, through the manual injection button 3 that presses down, in order to drive the piston rod 2, in order to promote rubber piston 52, in order to make refill 5 move to needle file 6 direction, in order to make syringe needle 61 pierce rubber membrane 51, thereby can continue to promote rubber piston 52 through piston rod 2, in order to promote refill 5 in the liquid medicine, in order to inject the liquid medicine through syringe needle 61, simultaneously, be provided with ball 7, wherein, screw 71 along the axial cover establish in the refill 5 outside, nut 72 can rotate and slide along screw 71, when needing to install new syringe needle 61, through needle file 6 and refill 5 bottom relative rotation in order to realize threaded connection, needle file 6 can promote push rod 9, in order to promote nut 72 to move and compress spring 8, in order to drive elastic expansion piece 10 to move, so that elastic expansion piece 10 can wear out and block pen core frame 4 through the through-hole 41, meanwhile, the needle seat 6 is pierced through the sharp thorn part 91, so that the needle seat 6 is fastened on the refill 5, when the needle seat 6 and the needle 61 need to be disassembled, the elastic expansion piece 10 is manually pressed in the refill frame 4, on one hand, the threaded connection between the needle seat 6 and the refill 5 can be conveniently loosened through manual thrust, on the other hand, the nut 72 can be pushed to reset through the spring 8, the needle seat 6 can be rotated and pushed through the sharp thorn part 91 on the push rod 9 due to the fact that the sharp thorn part 91 is pierced into the needle seat 6, so that the needle seat 6 is driven to be screwed out, the function of automatically disassembling the needle 61 without contacting the needle 61 is realized, the outward end of the elastic expansion piece 10 is designed to be round-head-shaped, on the one hand, the manual pressing operation is facilitated, on the other hand, when the elastic expansion piece 10 is driven to rotate through the nut 72, the friction force between the elastic, the spine portion 91 can be designed into a cone, through the spring 8, when the push rod 9 is driven to be completely pushed out, the outward tail end of the spine portion 91 is located on the radial direction of the outward tail end of the external thread, so that when the internal thread of the needle seat 6 is separated from the external thread of the refill 5, the spine portion 91 can be just separated from the needle seat 6, the needle seat 6 and the needle 61 can be detached conveniently, meanwhile, the spine portion 91 can be prevented from extending out of the outer end of the refill 5, the accidental touch and puncture can be avoided, in addition, the needle 61 penetrates out of the outer end of the needle seat 6 and is provided with the needle sleeve 62, and the side wall of the.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also combinations between technical features in the above embodiments or in different embodiments are possible, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a safe type insulin pen which characterized in that includes:
the pen body is designed into a hollow structure;
the piston rod is arranged in the hollow pen body, and one end of the piston rod penetrates out of the top end of the pen body;
the injection button is fixedly connected to one end, penetrating out of the top of the pen body, of the piston rod;
the top of the pen refill frame is detachably connected with the bottom end of the pen body, and the pen refill frame is designed to be of a hollow structure;
the pen core is arranged in the hollow pen core frame and used for storing liquid medicine, one end of the pen core penetrates through the bottom end of the pen core frame, and external threads are arranged on the side wall of one end, penetrating out of the pen core frame, of the pen core;
the rubber film is hermetically fixed at the bottom end of the pen core;
the rubber piston is movably connected to the top end of the inner wall of the pen refill;
the inner wall of the needle seat is provided with an internal thread matched with the external thread, and a needle head is fixed on the needle seat and penetrates into the needle seat;
the ball screw comprises a screw rod and a nut which are in threaded fit with each other, the screw rod is fixed at the bottom end of the refill frame, the screw rod is designed into a hollow structure and is sleeved outside the refill along the axial direction, and the nut can rotate and slide along the screw rod;
the through hole is arranged on the side wall of the refill holder;
the annular opening is arranged on the bottom wall of the refill frame;
one end of the spring is fixed on the screw rod, and the other end of the spring is fixed on the nut;
the push rod is fixed on the nut along the axial direction, and one end of the push rod penetrates through the annular opening;
the spine part is fixed at one end of the push rod penetrating through the annular opening;
the elastic expansion piece is fixed on the outer side wall of the nut;
through needle file with threaded connection, can promote the push rod to promote nut motion and compression the spring, in order to drive the elastic expansion piece motion, so that the elastic expansion piece accessible the through-hole is worn out and the block the refill frame, simultaneously pierce through spine portion the needle file, through pressing elastic expansion piece in the refill frame, in order to promote through the spring the nut, in order to pass through spine portion on the push rod drives the needle file back-out.
2. The safety insulin pen according to claim 1, wherein the outward end of the elastic expansion part is rounded.
3. The safety insulin pen according to claim 1 or 2, wherein the elastic expansion member is a pogo pin.
4. The safety insulin pen according to claim 1, wherein the spike is designed as a cone.
5. The safety insulin pen according to claim 1, wherein when the spring drives the push rod to be fully pushed out, the outward end of the spike part is located at the radial direction of the outward end of the external thread.
6. The safety insulin pen according to claim 1, wherein a needle sheath is provided at the outer end of the needle head which penetrates out of the needle seat.
7. The safety insulin pen according to claim 1, wherein an observation window is provided on the side wall of the cartridge holder for observing the dosage of the liquid medicine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020455516.6U CN213131316U (en) | 2020-04-01 | 2020-04-01 | Safe insulin pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020455516.6U CN213131316U (en) | 2020-04-01 | 2020-04-01 | Safe insulin pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213131316U true CN213131316U (en) | 2021-05-07 |
Family
ID=75708019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020455516.6U Expired - Fee Related CN213131316U (en) | 2020-04-01 | 2020-04-01 | Safe insulin pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213131316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113663173A (en) * | 2021-08-09 | 2021-11-19 | 上海埃斯埃医疗技术有限公司 | Painless insulin needle |
-
2020
- 2020-04-01 CN CN202020455516.6U patent/CN213131316U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113663173A (en) * | 2021-08-09 | 2021-11-19 | 上海埃斯埃医疗技术有限公司 | Painless insulin needle |
| CN113663173B (en) * | 2021-08-09 | 2022-04-01 | 上海埃斯埃医疗技术有限公司 | Painless insulin needle |
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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: 20210507 |