CN216294896U

CN216294896U - Injection device

Info

Publication number: CN216294896U
Application number: CN202122103754.8U
Authority: CN
Inventors: 蒋莉; 邹伟; 张平; 唐杰枚
Original assignee: University of South China
Current assignee: University of South China
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-04-15
Anticipated expiration: 2031-09-02

Abstract

The utility model discloses an injection device, which relates to a liquid medicine injection device, and comprises an injector and an application launching device, wherein the injector is used for injecting liquid medicine to a patient, the application launching device comprises an application cavity, a triggering device and a popping device, the application cavity is fixedly connected with the injector, one side of the application cavity, which is close to a needle head of the injector, is provided with an ejection port, the popping device is arranged in the application cavity, one end of the popping device is detachably connected with the application, and the triggering device can change the elastic storage state of the popping device into the state after the elastic release so as to pop the application out of the application cavity and stick the application on the injection part of the patient. The injection device can improve the operation convenience of medical care personnel and patients in the injection process.

Description

Injection device

Technical Field

The present invention relates to a liquid medicine injection device, and more particularly, to an injection device.

Background

In the process of injecting the liquid medicine by using the injector, medical staff needs to firstly suck the liquid medicine into the injection device, then puncture the body of a patient by using an injection needle of the injection device and inject the liquid medicine, pull out the injection needle after injecting the liquid medicine, and then press the puncture part by using a cotton swab to prevent bleeding and infection. The cotton swab needs to be taken independently in the prior art, medical staff not only needs to prepare the cotton swab independently, but also needs to immediately use the cotton swab to protect the injection part of a patient after the liquid medicine is injected, and the patient also needs to be specially held with the cotton swab to protect the injection part, so that the operation brings inconvenience to the medical staff and the patient.

Disclosure of Invention

The utility model aims to provide an injection device, which solves the problems in the prior art and can improve the operation convenience of medical care personnel and patients in the injection process.

In order to achieve the purpose, the utility model provides the following scheme:

the utility model provides an injection device, which comprises an injector and an application launching device, wherein the injector is used for injecting liquid medicine to a patient, the application launching device comprises an application, an application cavity, a trigger device and an ejection device, the application cavity is fixedly connected with the injector, an ejection port is formed in one side of the application cavity, which is close to a needle head of the injector, the ejection device is arranged in the application cavity, one end of the ejection device is detachably connected with the application, and the trigger device can be triggered to enable the ejection device to be changed from an elastic force storage state to an elastic force release state so as to eject the application out of the application cavity and adhere to and cover the injection part of the patient.

Preferably, the ejection device comprises an ejection spring and an ejection slider, one end of the ejection spring is fixedly connected with the ejection slider, and the ejection spring can be changed from an elastic force storage state to a state after the elastic force is released, so that the ejection slider can be ejected out of the application cavity to eject the application out of the application cavity.

Preferably, the folding type elastic patch further comprises a plurality of patch frameworks, each patch framework comprises a patch connecting rod and a supporting rod, one end of each supporting rod is rotatably connected with the ejection sliding block, the other end of each supporting rod is rotatably connected with the patch connecting rod, each patch connecting rod can be detachably connected with the back surface of the patch, and the patch frameworks can enable the patch to be unfolded after the patch is ejected out of the patch cavity.

Preferably, the ejection spring further comprises a thrust block, the thrust block is fixedly arranged on the ejection spring, the triggering device is in contact with the thrust block and can keep the ejection spring in an elastic force storage state, the triggering device is triggered, and the triggering device can leave the thrust block and enables the ejection spring to be changed from the elastic force storage state to a state after the elastic force is released.

Preferably, the triggering device comprises a triggering rod and an operating rod, the triggering rod is rotatably arranged in the application cavity and is used for contacting one surface of the thrust block close to the ejection outlet so as to keep the ejection spring in an elastic force storage state, the operating rod is connected with one end of the triggering rod, and pushing the operating rod can drive the triggering rod to rotate so as to enable the triggering rod to leave the thrust block to enable the ejection spring to be changed from the elastic force storage state to the elastic force release state.

Preferably, the triggering device further comprises a return spring, one end of the return spring is fixedly connected with one end of the triggering rod, which is far away from the operating rod, the other end of the return spring is fixedly connected with the inner side wall of the application cavity, and the return spring enables one end of the triggering rod, which is used for being in contact with the thrust block, to be far away from the side wall of the application cavity.

Preferably, one end of the side wall of the application cavity, which is close to the ejection port, is provided with a check block, and the check block is used for preventing the application from being ejected out of the application cavity and retreating back to the application cavity.

Preferably, a guide rod is arranged on a bottom plate of the application cavity, the guide rod extends along the direction of injecting the liquid medicine by the injector, the pop-up spring and the pop-up sliding block are sleeved on the guide rod, and the guide rod can guide the pop-up sliding block.

Preferably, the pop-up spring comprises a first pop-up spring and a second pop-up spring, one end of the first pop-up spring is fixedly connected with the pop-up slider, the other end of the first pop-up spring is fixedly connected with the thrust block, one end of the second pop-up spring is fixedly connected with the thrust block, and the other end of the second pop-up spring is fixedly connected with the bottom plate of the application cavity.

Preferably, the return spring is a coil spring.

Compared with the prior art, the utility model has the following technical effects:

the injection device comprises the injector and the application launching device, wherein the side wall of the application cavity of the application device is fixedly connected with the injector, and the integrated arrangement can reduce the times of carrying and taking the injection device by medical personnel, avoid the operation of independently taking a cotton swab after injection, simplify the operation flow of the injection process and improve the operation convenience of the medical personnel in the injection process; after using the syringe to inject liquid medicine for patient, trigger device triggers, makes the pop-up device who applies ointment or plaster the intracavity will apply ointment or plaster from applying ointment or plaster intracavity pop out in order to cover and paste on patient's injection site, does not need patient to fix with the hand again and apply ointment or plaster, directly take off after applying ointment or plaster the use completion and apply ointment or plaster can, improve injection in-process patient's operation convenience.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the injection device provided in the present invention;

fig. 2 is a partially enlarged view of a position a in fig. 1.

In the figure: 1-application; 2-a support rod; 3-a connecting rod; 4-ejecting the slider; 5-a non-return block; 6-application cavity; 7-a guide rod; 8-ejection spring; 9-a thrust block; 10-a syringe; 11-a needle head; 12 an injection device; 13-an operating lever; 14-a trigger lever; 15-return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The embodiment provides an injection device 12, as shown in fig. 1-2, which comprises an injector 10 and an application launching device, wherein the injector 10 is used for injecting liquid medicine to a patient, the application launching device comprises an application chamber 1, an application chamber 6, a triggering device and a triggering device, the side wall of the application chamber 6 is fixedly connected with the injector 10, an ejection port is formed in one side of the application chamber 6 close to a needle 11 of the injector 10, the popping device and the application chamber 1 are arranged in the application chamber 6, one end of the popping device is detachably connected with the application chamber 1, and the triggering device can change the state of the popping device from an elastic force storage state to an elastic force release state so as to pop the application chamber 1 out of the application chamber 6 and stick the application chamber 1 to cover the injection part of the patient. After the medical staff takes the injection device 12 to inject the liquid medicine into the patient, the trigger device is triggered to enable the ejection device to eject the application plaster 1 from the application cavity 6, and then the application plaster is aligned with the injection position of the patient injected with the liquid medicine to cover and paste the application plaster 1 on the injection position, namely the liquid medicine injection process is completed. In the process, the side wall of the application cavity 6 of the application launching device is fixedly connected with the injector 10, and the integrated arrangement can reduce the times of carrying and taking the injection device 12 by medical staff, avoid the operation of taking a cotton swab independently after injection, simplify the operation flow of the injection process and improve the operation convenience of the medical staff in the injection process; after the injector 10 is used for injecting liquid medicine to a patient, the trigger device is triggered, the application 1 is ejected from the application cavity 6 by the ejection device in the application cavity 6 to be covered and pasted on the injection site of the patient, the patient does not need to fix the application 1 by hands, the application 1 can be directly taken down after the application 1 is used, and the operation convenience of the patient in the injection process is improved.

In this embodiment, the pop-up device comprises a pop-up spring 8 and a pop-up slider 4, one end of the pop-up spring 8 is fixedly connected with the pop-up slider 4, and the pop-up spring 8 can be changed from an elastic force storage state to a state after the elastic force is released, so that the pop-up slider 4 can be popped out of the application cavity 6, and the application 1 can be popped out of the application cavity 6. One end of the pop-up spring 8 is fixedly connected with the pop-up slider 4, the other end of the pop-up spring 8 is fixedly arranged in the application cavity 6, preferably, one end of the pop-up spring 8 far away from the pop-up slider 4 is fixedly arranged on the bottom plate of the application cavity 6 in the embodiment, when the pop-up spring 8 is compressed, the pop-up slider 4 is retracted into the application cavity 6, the application 1 detachably connected to the pop-up slider 4 is also retracted into the application cavity 6, when the trigger device is triggered, the state of the pop-up spring 8 is changed from an elastic force storage state to an elastic force released state, the length of the pop-up spring 8 is lengthened, the pop-up slider 4 is pushed out of the application cavity 6, and simultaneously, the application 1 detachably connected to the pop-up slider 4 is ejected out of the application cavity 6 together.

In this embodiment, the injection device 12 further comprises a plurality of application frameworks, each application framework comprises an application connecting rod 3 and a supporting rod 2, one end of each supporting rod 2 is rotatably connected with the ejection slider 4, the other end of each supporting rod 2 is rotatably connected with the application connecting rod 3, each application connecting rod 3 can be detachably connected with the back surface of the application 1, and after the application 1 is ejected out of the application cavity 6, the application framework can enable the application 1 to be opened. The application frameworks are multiple, preferably four in the embodiment and are respectively arranged on the back of the appendage, the directions of two adjacent application frameworks are mutually perpendicular, after the application 1 is popped out of the application cavity 6, the application 1 can automatically stretch due to gravity, if the stretching degree is not enough, the frameworks can be manually shifted to open the application 1, and the application frameworks support the application 1 on the back of the application 1 so as to be convenient for pasting the application on the body of a patient.

In this embodiment, since the front side of the patch 1 has a large bonding area with the patient's body and the back side of the patch 1 has a small bonding area with the patch skeleton, the bonding force of the front side of the patch 1 with the patient's body is larger than the bonding force of the back side of the patch 1 with the patch skeleton, so that the patch skeleton can be removed after the patch 1 is attached to the patient's body while the patch 1 is still held on the patient's body. It is also possible in this embodiment to make the adhesive force of the adhesive applied to the front side of the application 1 stronger than the adhesive force of the adhesive applied to the back side of the application 1 in order to facilitate the removal of the skeleton from the application 1.

In this embodiment, the injection device 12 further includes a thrust block 9, the thrust block 9 is fixedly disposed on the pop-up spring 8, the trigger device is in contact with the thrust block 9 and can keep the pop-up spring 8 in an elastic force storage state, and the trigger device is triggered and can leave the thrust block 9 to change the pop-up spring 8 from the elastic force storage state to the elastic force released state. The present embodiment preferably uses a thrust block 9 in cooperation with the trigger means to maintain and change the state of the ejection change ejection spring 8. Compressing the ejection spring 8 to retract the applicator 1 into the application chamber 6, wherein the trigger device contacts a side of the thrust block 9 adjacent to the ejection port to prevent the thrust block 9 from moving toward the ejection port to maintain the elastic force storage state of the ejection spring 8 and keep the applicator 1 in the application chamber 6; when the application 1 is needed to be used, the trigger device is triggered to be away from the thrust block 9, the ejection spring 8 is changed from the elastic force storage state to the state after the elastic force is released, the application 1 is ejected out of the application cavity 6, and the application 1 can be used to cover and paste the application 1 on the injection site of a patient.

In this embodiment, the triggering device includes a triggering lever 14 and an operating lever 13, the triggering lever 14 is rotatably disposed in the application chamber 6, the triggering lever 14 is used for contacting with the thrust block 9 to keep the ejecting spring 8 in the elastic force storage state, the operating lever 13 is connected to one end of the triggering lever 14, and pushing the operating lever 13 can drive the triggering lever 14 to rotate to make the triggering lever 14 leave the thrust block 9 so as to change the ejecting spring 8 from the elastic force storage state to the elastic force release state. The trigger bar 14 rotates in the application cavity 6, and one end of the trigger bar 14 can contact with the thrust block 9 on the ejection spring 8 in the elastic force storage state during the rotation process so as to maintain the elastic force storage state of the ejection spring 8; the operating lever 13 is pushed to rotate the trigger lever 14, and the end of the trigger lever 14 in contact with the thrust block 9 is rotated away from the thrust block 9, so that the pop-up spring 8 can be released and the pop-up spring 8 is in a state after the elastic force is released.

In this embodiment, the trigger device further comprises a return spring 15, one end of the return spring 15 is fixedly connected with one end of the trigger rod 14 far away from the operating rod 13, and the other end of the return spring 15 is fixedly connected with the inner side wall of the application cavity 6. When the reset spring 15 is in the state after the elastic force is released, one end of the trigger lever 14 can contact the thrust block 9 on the pop-up spring 8 in the elastic force storage state to push the operating lever 13 to rotate the trigger lever 14, the reset spring 15 is compressed, when the trigger lever 14 leaves the thrust block 9, the operating lever 13 is loosened, the reset spring 15 returns to the state after the elastic force is released, the trigger lever 14 is pushed to rotate, and the trigger lever 14 returns to the position where the trigger lever can contact the thrust block 9 on the pop-up spring 8 in the elastic force storage state. It is convenient to maintain the spring force storage state of the pop-up spring 8 when the application 1 is first filled, and to maintain the spring force storage state of the pop-up spring 8 when the pop-up slider 4 is retracted into the application chamber 6 after the application 1 is used.

In this embodiment, one end of the side wall of the application cavity 6 close to the ejection port is provided with a non-return block 5, and the non-return block 5 is used for preventing the application 1 from ejecting out of the application cavity 6 and then returning back to the application cavity 6. The clearance between non return block 5 and the pop-up slider 4 is back the clearance, when will applying ointment or plaster 1 and paste on patient's health, pop-up slider 4 to the side skew, with the contact of non return block 5, will apply ointment or plaster 1 and paste the in-process on patient's health, non return block 5 can prevent to pop-up slider 4 and return to applying ointment or plaster the chamber 6 in, avoid pasting the failure.

In this embodiment, the bottom plate of the application cavity 6 is provided with a guide rod 7 extending in the direction of injecting the liquid medicine into the syringe 10, the pop-up spring 8 and the pop-up slider 4 are both sleeved on the guide rod 7, and the guide rod 7 can guide the pop-up slider 4. The guide rod 7 is preferably used in this embodiment to guide the eject slider 4 and the eject spring 8. The direction in which the syringe 10 injects the medical fluid in this embodiment is the direction in which the piston moves when the piston moves in the syringe to push out the medical fluid. The base plate of the application chamber 6 is circular in this embodiment, and the guide bar 7 is disposed coaxially with the base plate of the application chamber 6.

In this embodiment, the pop-up spring 8 includes a first pop-up spring 8 and a second pop-up spring 8, one end of the first pop-up spring 8 is fixedly connected to the pop-up slider 4, the other end of the first pop-up spring 8 is fixedly connected to the thrust block 9, one end of the second pop-up spring 8 is fixedly connected to the thrust block 9, and the other end of the second pop-up spring 8 is fixedly connected to the bottom plate of the application cavity 6. The ejection spring 8 is preferably composed of two springs in this embodiment.

In this embodiment, the return spring 15 is a coil spring. The return spring 15 may be a spring that can return the trigger lever 14, and in this embodiment, the return spring 15 is preferably a coil spring.

The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.

Claims

1. An injection device, characterized by: the injection device comprises an injector and an application launching device, wherein the injector is used for injecting liquid medicine to a patient, the application launching device comprises an application, an application cavity, a triggering device and an ejecting device, the application cavity is fixedly connected with the injector, one side of the application cavity, which is close to a needle head of the injector, is provided with an ejecting port, the ejecting device is arranged in the application cavity, one end of the ejecting device is detachably connected with the application, and the triggering device can change the ejecting device from an elastic storage state to an elastic release state so as to eject the application out of the application cavity and adhere to and cover the injection part of the patient; the ejection device comprises an ejection spring and an ejection slide block, one end of the ejection spring is fixedly connected with the ejection slide block, and the ejection spring can be changed from an elastic force storage state to a state after the elastic force is released and can eject the ejection slide block out of the application cavity so as to eject the application out of the application cavity; the ejection spring is fixedly arranged on the ejection spring, the triggering device is contacted with the thrust block and can keep the ejection spring in an elastic force storage state to trigger the triggering device, and the triggering device can leave the thrust block to change the ejection spring from the elastic force storage state to a state after the elastic force is released; the trigger device comprises a trigger rod and an operating rod, the trigger rod is rotatably arranged in the application cavity and is used for being in contact with one surface, close to the ejection outlet, of the thrust block to keep the ejection spring in an elastic force storage state, the operating rod is connected with one end of the trigger rod, and pushing the operating rod can drive the trigger rod to rotate to enable the trigger rod to be separated from the thrust block so as to enable the ejection spring to be changed from the elastic force storage state to the elastic force release state.

2. The injection device of claim 1, wherein: the novel elastic spring type patch applying device is characterized by further comprising a plurality of applying frameworks, each applying framework comprises an applying connecting rod and a supporting rod, one end of each supporting rod is rotatably connected with the popping slider, the other end of each supporting rod is rotatably connected with the applying connecting rod, each applying connecting rod can be detachably connected with the back surface of the applying patch, and after the applying patch is popped out of the applying cavity, the applying frameworks can enable the applying patch to be opened.

3. The injection device of claim 1, wherein: the triggering device further comprises a return spring, one end of the return spring is fixedly connected with one end, far away from the operating rod, of the triggering rod, the other end of the return spring is fixedly connected with the inner side wall of the application cavity, and the return spring enables one end, used for being in contact with the thrust block, of the triggering rod to be far away from the side wall of the application cavity.

4. The injection device of claim 1, wherein: one end, close to the ejection port, of the side wall of the application cavity is provided with a check block, and the check block is used for preventing the application from being ejected out of the application cavity and retreating back to the application cavity.

5. The injection device of claim 1, wherein: the bottom plate of the application cavity is provided with a guide rod, the guide rod extends along the direction of injecting liquid medicine by the injector, the pop-up spring and the pop-up sliding block are sleeved on the guide rod, and the guide rod can guide the pop-up sliding block.

6. The injection device of claim 1, wherein: the pop-up spring comprises a first pop-up spring and a second pop-up spring, one end of the first pop-up spring is fixedly connected with the pop-up sliding block, the other end of the first pop-up spring is fixedly connected with the thrust block, one end of the second pop-up spring is fixedly connected with the thrust block, and the other end of the second pop-up spring is fixedly connected with the bottom plate of the application cavity.

7. The injection device of claim 3, wherein: the return spring is a spiral spring.