CN105477746B

CN105477746B - Adhesive miniature hypodermic injection device

Info

Publication number: CN105477746B
Application number: CN201510777792.8A
Authority: CN
Inventors: 陈东生; 王瑜
Original assignee: Individual
Current assignee: 900th Hospital of the Joint Logistics Support Force of PLA
Priority date: 2015-11-12
Filing date: 2015-11-12
Publication date: 2020-02-18
Anticipated expiration: 2035-11-12
Also published as: CN105477746A

Abstract

The invention relates to the field of medical instruments, in particular to a sticking type micro hypodermic injection device. The invention comprises a sticking film for sticking on the surface of skin, an elastic cover body with an opening fixedly covered on the upper surface of the sticking film and a plurality of hypodermic syringes arranged in the elastic cover body; the hypodermic syringe comprises a piston rod, an injection syringe and a micro-injection needle, wherein the upper end part of the piston rod is fixed on the inner surface of the elastic cover body, the injection syringe is sleeved outside the piston rod, and the micro-injection needle is fixedly arranged at the front end of the injection syringe. The invention is convenient for individual soldiers in a battlefield to save themselves and can solve the problem of war injury analgesia.

Description

Adhesive miniature hypodermic injection device

Technical Field

The invention relates to the field of medical instruments, in particular to a sticking type micro hypodermic injection device.

Background

Pain is the most major complication of combat injuries. It is shown that, in addition to inflammatory pain, acute pain of war injury is mainly mediated by sensitive A delta fiber nociceptor, other part of insensitive/silent A delta fiber nociceptor is converted into hypersensitivity under cutting stimulus, and the accumulation of lactic acid and pH value decrease in wound part suggest that ischemia and hypoxia hypoperfusion factor is also involved in postoperative pain.

In the period of the second war, the American military equipment uses a Xileite morphine hypodermic syringe developed and produced by Shi Guibao company, so that medical and health personnel can effectively inject morphine with a controlled amount for the wounded, the pain of the wounded is greatly reduced, the occurrence of complications such as shock of the wounded is effectively avoided or delayed, and the survival rate of the wounded is remarkably improved.

During the iraq war, the army individual was equipped with an autoinjector with a dose of 10mg morphine. In the apocrine battlefield, the army also invests in the battlefield and has succeeded in trying an analgesic drug with an analgesic effect, in the form of "lollipop", the main component of which is fentanyl (a morphine-like narcotic analgesic).

The high-efficiency and practical war injury analgesia technology is one of the important factors for reducing war fighters, so that the invention provides an analgesia device which is convenient for single soldiers in a battlefield to save themselves and can solve the problem of war injury analgesia.

Disclosure of Invention

The invention aims to: provides a sticking type micro hypodermic injection device which is convenient for individual soldiers in a battlefield to save themselves and can solve the problem of war injury analgesia.

The invention is realized by the following technical scheme: an adhesive micro hypodermic injection device, characterized in that: comprises a sticking film for sticking on the surface of skin, an elastic cover body with an opening fixedly covered on the upper surface of the sticking film and a plurality of hypodermic syringes arranged in the elastic cover body;

the hypodermic syringe comprises a piston rod, an injection syringe and a micro-injection needle, wherein the upper end part of the piston rod is fixed on the inner surface of the elastic cover body, the injection syringe is sleeved outside the piston rod, and the micro-injection needle is fixedly arranged at the front end of the injection syringe.

The using method comprises the following steps:

when the hypodermic injection needle is used, the hypodermic injection needle is only required to be attached to the skin, the elastic cover body is slowly pressed by one hand to enable the hypodermic injector to move downwards together until the micro-injection needle is completely inserted into the skin, the injection needle cylinder is static relative to the skin at the moment, the elastic cover body is continuously pressed to enable the piston rod to continuously move downwards to inject the medicament pre-installed in the injection needle cylinder into the skin, finally the hand is released, and the hypodermic injector is pulled out of the body again when the elastic cover body recovers under the action of the elastic restoring force of the elastic cover body.

For better implementation of the scheme, the following optimization scheme is also provided:

further, still include the utricule of setting in the inside elastic cover body:

the capsule body is positioned between the hypodermic syringe and the sticking film, and the interior of the capsule body is filled with liquid medicine for anesthesia and disinfection.

The anesthetic liquid medicine in the capsule body can perform local anesthesia on the skin near the injection area for a short time, so that the pain of a human body caused by the fact that the micro-injection needle penetrates the skin can be further reduced; the disinfection liquid medicine can disinfect the skin near the injection area, and can well prevent the infection.

When in use, the hypodermic syringe punctures the capsule body when passing downwards, and the liquid medicine in the capsule body flows out and is dispersed nearby an injection part to generate an effect.

Further, a locking mechanism capable of locking or unlocking the piston rod and the syringe is provided between the piston rod and the syringe.

When the syringe is not used, the locking mechanism can keep the locking between the piston rod and the injection syringe so that the liquid medicine in the injection syringe can not be dripped out; meanwhile, the locking mechanism can also well control the dosage of the injection liquid medicine.

Preferably, the locking mechanism is a groove provided on one of the plunger rod or the syringe barrel and a projection provided on the other of the plunger rod or the syringe barrel.

When the piston rod moves downwards to the position of the groove when injecting the liquid medicine, a user can feel obvious hard and astringent feeling, and the protrusion can be separated from the groove to continuously inject the liquid medicine downwards only by exerting force again, so that the liquid medicine with twice dosage is placed in the hypodermic syringe, and the secondary injection of the liquid medicine can be realized by reasonably designing the position of the groove.

Furthermore, the hypodermic syringe also comprises an injection guide tube fixedly arranged on the lower end face of the injection syringe, and the needle head of the micro-injection needle is exposed outside the injection guide tube.

Therefore, the hypodermic syringe can keep vertical to the injection surface in the injection process, the optimal injection effect is achieved, and meanwhile, the pain feeling in the injection process is relieved.

Further, the adhesive film is composed of an adhesive film and a non-adhesive film;

the non-adhesive film is positioned below the opening of the elastic cover body, and the adhesive film is distributed around the non-adhesive film.

Further, the non-adhesive film is a medical sponge.

When in use, the liquid medicine flowing out of the capsule body is absorbed by the medical sponge so as to be well pasted on the skin.

Furthermore, the hypodermic syringes are arranged in parallel, and all the hypodermic syringes are distributed in a matrix.

A medicament is stored in each single hypodermic syringe, and the hypodermic syringes are combined together to realize independent and simultaneous injection of the multi-component medicament, so that the mutual influence of the components and the medicaments is avoided.

Further, the length of the micro injection needle ranges from 5mm to 10 mm.

Further, the length of the outer diameter of the micro-injection needle ranges from 0.3 mm to 0.45 mm.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention injects the medicine into soft tissue under the skin by subcutaneous injection, and is absorbed by human body through capillary and lymphatic systems, the medicine absorption is slow and uniform, the duration of the medicine effect is longer, and the effect is obvious;

2. the injection needle is small, the injection is convenient, the pain is small, various discomfort such as muscle spasm and the like caused by muscle injection are avoided, the use is safe, and the battlefield operation is convenient;

3. when in use, the operation can be completed by only one hand, and the purpose of quickly relieving pain can be well achieved.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a bottom view of the present invention;

fig. 4 is a partially enlarged view of fig. 1.

Description of reference numerals: 11-adhesive film, 12-non-adhesive film, 2-elastic cover body, 31-piston rod, 32-syringe, 33-micro-injection needle, 34-groove, 35-projection, 36-injection guide tube and 4-capsule body.

Detailed Description

The invention is described in detail below with reference to the following description of the drawings:

the invention comprises a sticking film for sticking on the surface of the skin, an elastic cover body 2 with an opening fixedly covered on the upper surface of the sticking film and a plurality of hypodermic syringes arranged in the elastic cover body 2;

the hypodermic syringe comprises a piston rod 31 with the upper end part fixed on the inner surface of the elastic cover body 2, an injection syringe 32 sleeved outside the piston rod 31 and a micro-injection needle 33 fixedly arranged at the front end of the injection syringe 32.

At present, the research of various countries in the world on the aspect of war injury analgesia mostly focuses on the development of analgesic drugs, but the research and the development of war injury analgesia devices are rare;

the use of analgesics is generally divided into two categories, namely smearing and injection, and the smearing mode can only temporarily relieve pain of the skin near the coating area, while the wounded on the battlefield is generally seriously injured, which is not suitable;

therefore, most of the prior war wounds are treated by injection, but the common intravenous injection method and the traditional subcutaneous injection method have higher operation requirements on users, can be finished by professional medical training, have strong pain, require single soldiers to overcome huge psychological obstacles when performing injection operation by themselves, and obviously are not suitable for battlefield environments due to time-consuming operation.

In order to better implement the invention, the following optimization scheme is also provided:

further, the elastic mask also comprises a capsule body 4 arranged inside the elastic mask body 2:

the capsule body 4 is positioned between the hypodermic syringe and the film, and the interior of the capsule body 4 is filled with liquid medicine for anesthesia and disinfection.

Further, a lock mechanism capable of locking and unlocking the piston rod 31 and the syringe 32 is provided therebetween.

Preferably, the locking mechanism is a groove 34 provided on one of the plunger rod 31 or syringe barrel 32 and a protrusion 35 provided on the other of the plunger rod 31 or syringe barrel 32.

Further, the hypodermic syringe further comprises an injection guide tube 36 fixedly arranged on the lower end surface of the injection syringe 32, and the needle of the micro-injection needle 33 is exposed out of the injection guide tube 36.

Further, the adhesive film is composed of an adhesive film 11 and a non-adhesive film 12;

the non-adhesive film 12 is positioned below the opening of the elastic mask body 2, and the adhesive film 11 is circumferentially distributed around the non-adhesive film 12.

Further, the non-adhesive film 12 is a medical sponge.

Further, the length of the micro-injection needle 33 ranges from 5 to 10 mm.

Further, the length of the outer diameter of the micro-injection needle 33 ranges from 0.3 to 0.45 mm.

While the invention has been illustrated and described with respect to specific embodiments and alternatives thereof, it will be understood that various changes and modifications can be made without departing from the spirit and scope of the invention. It is understood, therefore, that the invention is not to be in any way limited except by the appended claims and their equivalents.

Claims

1. An adhesive micro hypodermic injection device, characterized in that: comprises a sticking film for sticking on the surface of skin, an elastic cover body (2) with an opening fixedly covered on the upper surface of the sticking film and a plurality of hypodermic syringes arranged in the elastic cover body (2);

the hypodermic syringe comprises a piston rod (31) with the upper end part fixed on the inner surface of the elastic cover body (2), an injection syringe (32) sleeved outside the piston rod (31) and a micro-injection needle (33) fixedly arranged at the front end of the injection syringe (32);

a locking mechanism which can keep locking or unlock between the piston rod (31) and the injection syringe (32);

the hypodermic syringe also comprises an injection guide tube (36) fixedly arranged on the lower end surface of the injection syringe (32), and the needle head of the micro-injection needle (33) is exposed out of the injection guide tube (36).

2. The adhesive micro hypodermic injection device according to claim 1, wherein: the elastic mask also comprises a capsule body (4) arranged in the elastic mask body (2);

the capsule body (4) is positioned between the hypodermic syringe and the sticking film, and the interior of the capsule body (4) is filled with liquid medicine for anesthesia and disinfection.

3. The adhesive micro hypodermic injection device according to claim 1, wherein: the locking mechanism is a groove (34) provided on one of the plunger rod (31) or the syringe barrel (32) and a projection (35) provided on the other of the plunger rod (31) or the syringe barrel (32).

4. The adhesive micro hypodermic injection device according to claim 1, wherein: the adhesive film is composed of an adhesive film (11) and a non-adhesive film (12);

the non-adhesive film (12) is positioned below the opening of the elastic cover body (2), and the adhesive film (11) is distributed around the non-adhesive film (12).

5. The adhesive micro hypodermic injection device according to claim 4, wherein: the non-adhesive film (12) is a medical sponge.

6. The adhesive micro hypodermic injection device according to any one of claims 1-5, wherein: the hypodermic syringes are arranged in parallel, and all the hypodermic syringes are distributed in a matrix.

7. The adhesive micro hypodermic injection device according to any one of claims 1-5, wherein: the length range of the micro-injection needle (33) is 5-10 mm.

8. The adhesive micro hypodermic injection device according to any one of claims 1-5, wherein: the length range of the outer diameter of the micro-injection needle (33) is 0.3-0.45 mm.