CN217525979U - Safe needle head dismounting device for pre-filled injection pen - Google Patents
Safe needle head dismounting device for pre-filled injection pen Download PDFInfo
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- CN217525979U CN217525979U CN202220238276.3U CN202220238276U CN217525979U CN 217525979 U CN217525979 U CN 217525979U CN 202220238276 U CN202220238276 U CN 202220238276U CN 217525979 U CN217525979 U CN 217525979U
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Abstract
The utility model provides a safe removing device for a needle head of a prefilled injection pen, which is provided with a rectangular frame, wherein a holding clamp consisting of a fixed clamping block and a movable clamping block is embedded in the rectangular frame; a push rod is sleeved in the middle of the right frame of the rectangular frame, the left end of the push rod is connected with the movable clamping block, the right end of the push rod is exposed out of the rectangular frame and connected with the rectangular sliding block, and a rod body at the right end of the push rod is further sleeved with a pressure spring; the outer side of the right frame of the rectangular frame is fixedly connected with a strip-shaped handle, and a right end rod body of the push rod, the pressure spring and the rectangular slide block extend into a rectangular notch of the strip-shaped handle; the bar handle top surface is equipped with a lever wane, and the left end of wane stretches into in the rectangular groove mouth and pushes up and lean on the right flank of rectangle slider. The device has the advantages of simple structure, convenient carrying and safe and convenient use, when the needle head of the prefilled injection pen is detached by using the device, the hand of medical personnel is kept away from the needle head in the whole operation process, and the needle stick injury can be effectively avoided.
Description
Technical Field
The utility model relates to a device is demolishd to the syringe needle, specifically is a device is demolishd to pre-filled formula injection pen syringe needle safety belongs to medical utensil technical field.
Background
At present, the fertility of human beings generally tends to decline under the influence of reasons such as delayed birth age, life pressure and the like, and a plurality of infertility couples need to be subjected to assisted reproductive treatment in hospitals every year. An important part of assisted reproductive therapy is ovulation induction therapy, and most of the ovulation induction drugs are administered by injection in the ovulation induction therapy stage, wherein a prefilled injection pen is the most widely used ovulation induction drug injection tool for patients in procreation medical science and infertility at present. The pen body of the prefilled injection pen needs to be reused, the needle head is a disposable product, and after injection is finished, the needle head needs to be removed in time and placed into a sharp device recovery box for centralized storage, so that needle stick injury or secondary infection is avoided.
The needle head of the prefilled injection pen is screwed on the pen body through a needle seat with internal threads, and anti-slip stripes are arranged on the outer side of the needle seat. The conventional method for removing the needle head is to rotate and take down the needle cap of the needle head together with the needle head after the needle cap is sleeved back, or to directly pinch the needle seat part with fingers to rotate and take down the needle head. Because the special needle of the prefilled injection pen is shorter and thinner than the conventional injection needle, the fingers of medical staff are easily stabbed by the needle due to the fact that the needle cap is not sleeved in the process of returning the needle cap, if the needle is directly taken down by pinching the needle seat part by the fingers through the strength of the thumb and the forefinger, the needle is very close to the hand due to the fact that the size of the needle seat is small, and the needle of the hand of the medical staff is extremely easy to stab.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device is demolishd safely to pre-filled injection pen syringe needle to be used for replacing the current syringe needle mode of demolising, make medical personnel's hand can keep away from the syringe needle when demolising pre-filled injection pen syringe needle, avoid taking place the acupuncture and hinder.
The utility model discloses the technical scheme who adopts as follows:
a needle head safety dismounting device for a pre-filled injection pen is characterized in that a rectangular frame is arranged on the left side of the needle head safety dismounting device, a fixed clamping block is embedded in the left side of the interior of the rectangular frame, a semicircular notch is formed in the right side of the fixed clamping block, a movable clamping block capable of transversely sliding left and right in the rectangular frame is embedded in the right side of the interior of the rectangular frame, a semicircular notch is formed in the left side of the movable clamping block, and a pair of openable clasps is formed in the rectangular frame by the fixed clamping block and the movable clamping block; the middle part of the right frame of the rectangular frame is provided with a transverse through hole, a cylindrical push rod is sleeved in the through hole in a sliding manner, a left end rod body of the push rod penetrates into the rectangular frame from the outer side of the right frame of the rectangular frame through the through hole, the end head of the left end rod body is connected with the right side face of the movable clamping block through threads, a right end rod body of the push rod is exposed out of the outer side of the right frame of the rectangular frame, the end head of the right end rod body is connected with the left side face of a rectangular sliding block through threads, bosses are arranged at the upper end and the lower end of the rectangular sliding block, a pressure spring is further sleeved on the right end rod body of the push rod, and the left end and the right end of the pressure spring elastically push against the rectangular frame and the rectangular sliding block respectively; the outer side of the right frame of the rectangular frame is also fixedly connected with a bar-shaped handle extending rightwards, the middle part of the left end face of the bar-shaped handle is provided with a rectangular notch extending rightwards, the upper end face and the lower end face of the rectangular notch are provided with groove-shaped slideways, the right end rod body of the push rod, the pressure spring and the rectangular slide block extend into the rectangular notch of the bar-shaped handle, and bosses at the upper end and the lower end of the rectangular slide block are connected in the slideways at the upper end and the lower end of the rectangular notch in a sliding manner; the bar handle top surface is equipped with an opening that is linked together with the rectangle notch in the position that corresponds the rectangle notch end, and the opening top has erect a lever wane as rotating the fulcrum through the round pin axle, and the right-hand member of wane upwarps, and the left end pushes down, and the left end below of wane is buckled and is stretched into in the rectangle notch and push up and lean on the right flank of rectangle slider from the opening of bar handle top surface, makes the wane left end remain throughout and push up by selling epaxial torque spring and lean on the state.
Furthermore, anti-slip teeth are arranged in the semicircular grooves of the fixed clamping block and the movable clamping block and are matched with anti-slip stripes on the outer side of the needle seat of the needle head of the pre-filled injection pen, so that a more stable clamping effect is realized.
Furthermore, a L-shaped protective cover used for shielding the needle head from the top surface and the right side surface is erected on the front side surface of the rectangular frame at the position corresponding to the periphery of the holding clamp, a connecting lug is arranged at the rear end of the top surface of the protective cover, and the connecting lug of the protective cover is inserted into a clamping groove corresponding to the upper frame of the rectangular frame and is fixed through an upper screw penetrating through the upper frame of the rectangular frame. The added protective cover can further prevent the hand from being punctured by the needle when the needle is removed, and if the needle is not needed to be used, the protective cover can also be independently removed.
Furthermore, the fixing clamping block is fixedly installed in the rectangular frame through a left screw penetrating through the left frame of the rectangular frame.
Furthermore, the left end of the strip-shaped handle is provided with support legs which are respectively extended from top to bottom, and the strip-shaped handle is fixedly connected to the right frame of the rectangular frame through a right screw which penetrates through the support legs.
The safe needle dismantling device for the pre-filled injection pen has the advantages of simple structure, convenience in carrying and safety and convenience in use. When the needle head of the prefilled injection pen is detached by using the device, the right hand of the medical staff holds the bar-shaped handle, the prefilled injection pen with the needle head is inserted into the holding clamp of the rectangular frame by the left hand, the rocker on the bar-shaped handle is pressed by the thumb of the right hand, the needle seat part of the prefilled injection pen needle head is clamped by the holding clamp, the pen body of the prefilled injection pen is rotated by the left hand, the needle head can be detached from the pen body, then the state that the rocker is pressed by the right hand is kept, the device with the needle head is clamped by the rocker is moved to the top of the sharp instrument recovery box, the rocker is loosened, the needle head automatically falls into the sharp instrument recovery box, the needle head is kept away from the hand of the medical staff in the whole operation process, the needle puncture injury can be effectively avoided, the potential safety hazard is reduced, and the safety of the medical staff is better protected. When necessary, the device can be additionally provided with a protective cover to shield the needle head, so that the operation safety is further improved.
Drawings
Fig. 1 is a schematic perspective view of the device for safely removing the needle of the prefilled injection pen.
Fig. 2 is a front view of fig. 1.
FIG. 3 is the drawing of FIG. 1 top view of (a).
Fig. 4 is a schematic perspective view of the device of fig. 1, when turned over.
Fig. 5 is an exploded view of the part of fig. 1.
Fig. 6 is an exploded view of the part of fig. 4.
In the figure: 1-rectangular frame, 1.1-through hole, 1.2-clamping groove, 2-fixed clamping block, 3-left screw, 4-movable clamping block, 5-push rod, 6-rectangular sliding block, 6.1-lug boss, 7-pressure spring, 8-bar handle, 8.1-supporting leg, 8.2-rectangular notch, 8.3-slideway, 8.4-opening, 8.5-pin shaft, 9-right screw, 10-rocker, 11-torsion spring, 12-protective cover, 12.1-connecting lug and 13-upper screw.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings. In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", etc. are defined based on the orientation or positional relationship shown in fig. 1 of the specification, and are only for convenience of description of the present invention, and do not refer to a specific orientation that a device or element must have, and should not be considered as limiting the present invention.
As shown in fig. 1-6, the left side of the safe needle dismounting device for the prefilled injection pen is provided with a rectangular frame 1, the left side inside the rectangular frame 1 is embedded with a fixed clamping block 2, the fixed clamping block 2 is fixedly installed in the rectangular frame 1 through a left screw 3 penetrating through the left frame of the rectangular frame 1, the right side surface of the fixed clamping block 2 is provided with a semicircular notch, the right side inside the rectangular frame 1 is embedded with a movable clamping block 4 capable of transversely sliding along the left and right sides inside the rectangular frame 1, the left side surface of the movable clamping block 4 is provided with a semicircular notch, and a pair of openable clasps is formed in the rectangular frame 1 by the fixed clamping block 2 and the movable clamping block 4; the semi-circular grooves of the fixed clamping block 2 and the movable clamping block 4 are internally provided with anti-skid teeth which are matched with anti-skid stripes on the outer side of the needle seat of the needle head of the prefilled injection pen. A transverse through hole 1.1 is formed in the middle of the right frame of the rectangular frame 1, a cylindrical push rod 5 is sleeved in the through hole 1.1 in a sliding mode, the left end rod body of the push rod 5 penetrates into the rectangular frame 1 from the outer side of the right frame of the rectangular frame 1 through the through hole 1.1, the end head of the left end rod body is connected with the right side face of the movable clamping block 4 through threads, the right end rod body of the push rod 5 is exposed out of the outer side of the right frame of the rectangular frame 1, the end head of the right end rod body is connected with the left side face of a rectangular sliding block 6 through threads, bosses 6.1 are arranged at the upper end and the lower end of the rectangular sliding block 6, a pressure spring 7 is further sleeved on the right end rod body of the push rod 5, and the left end and the right end of the pressure spring 7 elastically push against the rectangular frame 1 and the rectangular sliding block 6 respectively; the outside of rectangular frame 1 right side frame still fixedly connected with one stretches out bar handle 8 to the right, and bar handle 8's left end is equipped with stabilizer blade 8.1 of upper and lower difference expenditure, and bar handle 8 is through the right screw 9 fixed connection who passes stabilizer blade 8.1 on rectangular frame 1's right side frame. A rectangular notch 8.2 extending rightwards is formed in the middle of the left end face of the strip-shaped handle 8, groove-shaped slideways 8.3 are formed in the upper end face and the lower end face of the rectangular notch 8.2, a rod body at the right end of the push rod 5, the pressure spring 7 and the rectangular sliding block 6 extend into the rectangular notch 8.2 of the strip-shaped handle 8, and bosses 6.1 at the upper end and the lower end of the rectangular sliding block 6 are connected into the slideways 8.3 at the upper end and the lower end of the rectangular notch 8.2 in a sliding mode; the 8 top surfaces of the bar-shaped handles are provided with an opening 8.4 communicated with the rectangular notch 8.2 at the position corresponding to the end of the rectangular notch 8.2, a lever-type rocker 10 is arranged above the opening 8.4 as a rotating fulcrum through a pin shaft 8.5, the right end of the rocker 10 upwarps, the left end is pressed downwards, the left end head of the rocker 10 is bent towards the left lower side, extends into the rectangular notch 8.2 from the opening 8.4 at the top surface of the bar-shaped handle 8 and leans against the right side surface of the rectangular sliding block 6, and the left end head of the rocker 10 is always kept in a leaning state by a torsion spring 11 on the pin shaft 8.5.
Optionally, a reverse-l-shaped shield 12 for shielding the needle from the top surface and the right side surface is further mounted on the front side surface of the rectangular frame 1 at a position corresponding to the periphery of the clasping clip, a connection lug 12.1 is disposed at the rear end of the top surface of the shield 12, and the connection lug 12.1 of the shield 12 is inserted into a corresponding slot 1.2 of the upper frame of the rectangular frame 1 and fixed by an upper screw 13 passing through the upper frame of the rectangular frame 1. The shield 12 may be removed separately if not needed.
When the needle head safety dismantling device for the prefilled injection pen is used for dismantling the needle head of the prefilled injection pen, a medical worker holds the bar-shaped handle 8 by the right hand, the movable clamping block 4 automatically slides to the rightmost side inside the rectangular frame 1 under the tension of the pressure spring 7, the holding clamp consisting of the fixed clamping block 2 and the movable clamping block 4 is in an open state at the moment, the prefilled injection pen with the needle head is inserted into the holding clamp of the rectangular frame 1 by the left hand of the medical worker, the rocker 10 on the bar-shaped handle 8 is pressed by the thumb of the right hand, the rectangular sliding block 6 is pushed leftwards by the left end head of the rocker 10, the movable clamping block 4 is driven to slide leftwards, the needle seat part of the prefilled injection pen needle head is clamped by the holding clamp, the pen body of the prefilled injection pen is rotated by the left hand, the needle head is dismantled from the pen body, then the device with the needle head clamped by the rocker 10 is moved to the upper part of a sharp instrument recovery box in a state, the rocker 10 is loosened, the needle head is automatically clamped under the tension of the needle head of the pressure spring 7, the needle head falls into the sharp instrument recovery box, and the hand of the medical worker in the whole operation process is effectively prevented from being far away from being injured. If necessary, the device can also be provided with a protective cover 12 to shield the needle, so as to further increase the operation safety.
The above-mentioned drawings are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications or equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (5)
1. The utility model provides a device is demolishd safely to pre-filled formula injection pen syringe needle which characterized by: the device is characterized in that a rectangular frame is arranged on the left side of the device, a fixed clamping block is embedded in the left side of the interior of the rectangular frame, a semicircular notch is formed in the right side surface of the fixed clamping block, a movable clamping block capable of transversely sliding along the left and right sides of the interior of the rectangular frame is embedded in the right side of the interior of the rectangular frame, a semicircular notch is formed in the left side surface of the movable clamping block, and a pair of openable clasps is formed in the rectangular frame by the fixed clamping block and the movable clamping block; the middle part of the right frame of the rectangular frame is provided with a transverse through hole, a cylindrical push rod is sleeved in the through hole in a sliding manner, a left end rod body of the push rod penetrates into the rectangular frame from the outer side of the right frame of the rectangular frame through the through hole, the end head of the left end rod body is connected with the right side face of the movable clamping block through threads, a right end rod body of the push rod is exposed out of the outer side of the right frame of the rectangular frame, the end head of the right end rod body is connected with the left side face of a rectangular sliding block through threads, bosses are arranged at the upper end and the lower end of the rectangular sliding block, a pressure spring is further sleeved on the right end rod body of the push rod, and the left end and the right end of the pressure spring elastically push against the rectangular frame and the rectangular sliding block respectively; the outer side of the right frame of the rectangular frame is also fixedly connected with a bar-shaped handle extending rightwards, the middle part of the left end face of the bar-shaped handle is provided with a rectangular notch extending rightwards, the upper end face and the lower end face of the rectangular notch are provided with groove-shaped slideways, the right end rod body of the push rod, the pressure spring and the rectangular slide block extend into the rectangular notch of the bar-shaped handle, and bosses at the upper end and the lower end of the rectangular slide block are connected in the slideways at the upper end and the lower end of the rectangular notch in a sliding manner; the bar handle top surface is equipped with an opening that is linked together with the rectangle notch in the position that corresponds the rectangle notch end, and the opening top is equipped with a lever wane as rotating the fulcrum frame through the round pin axle, and the right-hand member of wane upwarps, and the left end pushes down, and the left end below of wane is buckled and is stretched into in the rectangular groove mouth and lean on the right flank at the rectangle slider from the opening of bar handle top surface to the left side, makes the wane left end remain the state of leaning on all the time by selling epaxial torque spring.
2. The safe removing device for the needle head of the prefilled injection pen according to claim 1, wherein: and anti-slip teeth are arranged in the semicircular grooves of the fixed clamping block and the movable clamping block and are matched with anti-slip stripes on the outer side of the needle seat of the needle head of the prefilled injection pen.
3. The safe removing device for the needle head of the prefilled syringe pen according to claim 1, wherein: the front side surface of the rectangular frame is also provided with a L-shaped protective cover used for shielding the pinhead from the top surface and the right side surface at the position corresponding to the periphery of the holding clamp, the rear end of the top surface of the protective cover is provided with a connecting lug, and the connecting lug of the protective cover is inserted into a clamping groove corresponding to the upper frame of the rectangular frame and is fixed by an upper screw passing through the upper frame of the rectangular frame.
4. The safe removing device for the needle head of the prefilled injection pen according to claim 1, wherein: the fixed clamping block is fixedly arranged in the rectangular frame through a left screw penetrating through the left frame of the rectangular frame.
5. The safe removing device for the needle head of the prefilled injection pen according to claim 1, wherein: the left end of the bar-shaped handle is provided with support legs which are respectively extended from top to bottom, and the bar-shaped handle is fixedly connected to the right frame of the rectangular frame through a right screw which penetrates through the support legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220238276.3U CN217525979U (en) | 2022-01-28 | 2022-01-28 | Safe needle head dismounting device for pre-filled injection pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220238276.3U CN217525979U (en) | 2022-01-28 | 2022-01-28 | Safe needle head dismounting device for pre-filled injection pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217525979U true CN217525979U (en) | 2022-10-04 |
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ID=83426030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220238276.3U Active CN217525979U (en) | 2022-01-28 | 2022-01-28 | Safe needle head dismounting device for pre-filled injection pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217525979U (en) |
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2022
- 2022-01-28 CN CN202220238276.3U patent/CN217525979U/en active Active
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