TWI760896B - Injection safety protecting device and method - Google Patents

Abstract

An injection safety protecting device and a method thereof is provided. A message projecting module projects an injection message including an injection region on one of a plurality of body parts of a patient each time. Each of the injection regions includes a plurality of sub-injection regions. The message projecting module projects and marks the sub-injection region to be injected. The sub-injection region currently marked in a projecting manner is different from and not adjacent to that previously marked. A user is indicated to use a syringe to inject a substance into a human body in the marked sub-injection region by the message projecting module.

Description

Injection safety protection device and method

The present invention relates to injection, in particular to an injection safety protection device and method.

In addition to oral hypoglycemic drugs, the drug treatment of diabetes is insulin injection. Insulin is the main hormone to maintain blood sugar balance in the body. Therefore, when the pancreas is damaged in the body, in order to maintain stable blood sugar, it may be necessary to inject insulin. to treat. Commonly used syringes such as 1. Insulin disposable plastic empty needle (30, 50, 100 units can be selected according to the injection dose, do not reuse), 2. Pen-type syringe (a pen-type syringe with pre-filled insulin, the drug is stored in Inside the pen holder, there is no need to draw medicine, a special needle is connected before each injection, and the injection can be done by simply turning the button, which is convenient to carry). The injection techniques include: 1. Injection sites such as abdomen, arm (upper arm), outer thigh, buttocks, and 2. Site rotation requirements to avoid fat hypertrophy and atrophy, affecting appearance and drug absorption.

In order to meet the requirement of not repeating the injection site, regardless of the self-injection patients themselves or the caregivers who give the treatment, the current method is to record each injection site on paper, and at the same time, it can also be matched with strokes and stickers. Marking the patient's body in this way causes many invariants, such as misspellings, omissions, handover errors, causing site discomfort, and inconvenience in operation.

The technical problem to be solved by the present invention is to provide a An injection safety protection device, including a message projection module and a control module, is suitable for injectors. The information projection module is configured to project injection information on one of the multiple body parts of the patient each time the syringe needs to be used to inject the patient, and the injection information projected at each time is different from the injection information projected at other times. Each injection message includes an injection area. Each injection area contains a plurality of sub-injection areas. The information projection module is configured to project a calibration point for each injection area to assist the user in positioning, as a positioning aid for the relative positions of the plurality of sub-injection areas, and to mark one of the sub-injection areas of the injection area that determines the injection through the projection method, so as to Instruct the use of a syringe to inject into the body part in the marked sub-injection area. The control module is connected to the message projection module. The control module is configured to determine which sub-injection area of which body part is injected each time to output the control signal, so as to control the information projection module to project each injection message. The control module is configured to record the sub-injection area of each injection, the time of each injection, and the interval time of multiple injections to establish a personal injection history. The information projection module is configured to determine another sub-injection area for the next injection according to the individual injection process to output a corresponding control signal to instruct the sub-injection area marked by the information projection module in the projection mode each time and the previous sub-injection area marked by the projection mode. The sub-injection areas are different and not adjacent, wherein the non-adjacent rule is taken in time and space, and the two consecutive injections have the largest difference in space distance as the basis.

In one embodiment, the injection safety protection device further includes a setting operation interface module. Set the operation interface module to connect the control module. Set the configuration of the operation interface module to set the patient number and the various body parts that can be injected by the patient number, the dose to be injected, and the type of injection drug, so as to output the personalized injection request, which is used as the control module to generate the control signal and the personal injection process. in accordance with.

In one embodiment, the injection safety guard further includes a transfer module. The transmission module is connected to the control module and the remote server. Transfer module configuration to upload personal injection history to the medical database of the remote server.

In one embodiment, the transmission module is configured to transmit personalized injection requests from the electronic device to the control module.

In one embodiment, the control module is configured to output an injection reminder signal every time the injection time is reached, so as to remind the operation message projection module to project the injection message.

In one embodiment, the information projection module is configured to project the number, code, text, symbol, pattern, or combination of each sub-injection area of each injection area into each sub-injection area on each body part.

In addition, the present invention provides an injection safety protection method, applicable to a syringe, and comprising the steps of: determining which position on which body part of a plurality of body parts of the patient each time the syringe needs to be used to inject the patient Carry out the injection; project the corresponding injection information on the position of the body part where the injection is determined, wherein each injection information includes an injection area, and each injection area includes a plurality of sub-injection areas; project a calibration point for each injection area to assist the user in positioning, as Assist in the positioning of the relative positions of multiple sub-injection areas, and project one of the sub-injection areas that determine the injection area to indicate the sub-injection area marked with a syringe injection; record the sub-injection area for each injection, each injection area The injection time and the interval time between multiple injections are used to establish the individual injection history; another sub-injection area for the next injection is determined according to the individual injection history; A sub-injection area, in which the non-adjacent rule is taken in time and space, is based on the spatial distance with the largest difference between two consecutive injections.

In one embodiment, the injection safety protection method further includes the following steps: setting a patient number and each body part to which the patient number can be injected, the dosage to be injected, and the type of the injected drug, so as to output a personalized injection request.

In one embodiment, the injection safety protection method further includes the following steps: outputting an injection reminder signal every time the injection time is determined to remind the projection injection message.

In one embodiment, the injection safety protection method further comprises the following step: projecting the numbers, codes, characters, symbols, patterns or combinations thereof of each sub-injection area of each injection area In each sub-injection area on each body part.

As described above, the present invention provides an injection safety protection device and method, which has the following advantages: 1. One machine can be used by many people, the operation is simple, convenient and effective; 2. There is no need to mark on paper or glue, avoiding mistakes and injuries 3. Easy to combine with injection needle/pen; 4. Automatically give individual users injection advice and other message reminders; 5. Can communicate with external devices, flexible and diverse in use, and has the function of exchanging data with external servers; 6 . The structure is simple and effective, the cost is reasonable, and it has a promotion price.

For a further understanding of the features and technical content of the present invention, please refer to the following detailed descriptions and drawings of the present invention. However, the drawings provided are only for reference and description, and are not intended to limit the present invention.

10: Message Projection Module

20: Control Module

30: Set the operation interface module

40: Transmission module

90: Electronics

96: Remote server

91: User

31: Personalized injection requirements

32: Patient ID

33: Injection dose

34: Types of injectable drugs

35: Injection time interval

23: Control signal

801~80n: body parts

93: Injection position

11: Injection message

12. RJ1~RJ4, A~H: Injection area

13. A1~A6, B1~B6, C1~C6, D1~D6, E1~E6, F1~F6, G1~G6, H1~H6: sub-injection area

95: Patient

21: Personal injection process

83: Hospital

961: Medical Database

26: Injection time

27: Injection reminder signal

S101, S103, S105, S106, S107, S109, S111, S113, S115, S117, S119, S121, S123: Steps

FIG. 1 is a block diagram of an injection safety protection device according to an embodiment of the present invention.

2 is a block diagram of a control module, a setting operation interface module and a transmission module of the injection safety protection device according to an embodiment of the present invention.

3 is a block diagram of a control module, a setting operation interface module and a transmission module of the injection safety protection device according to an embodiment of the present invention.

4 is a block diagram of a message projection module and a control module of an injection safety protection device according to an embodiment of the present invention.

5 is a block diagram of a control module and a transmission module of an injection safety protection device according to an embodiment of the present invention.

6 is a block diagram of a control module and a setting operation interface module of an injection safety protection device according to an embodiment of the present invention.

FIG. 7A is a schematic diagram of the information projection module of the injection safety protection device projecting the injection information on the abdomen of the patient according to the embodiment of the present invention.

FIG. 7B is a schematic diagram of the information projection module of the injection safety protection device projecting the injection information on the abdomen of the patient according to the embodiment of the present invention.

FIG. 7C is a schematic diagram of the message projection module of the injection safety protection device projecting the injection message on the thigh of the patient according to the embodiment of the present invention.

FIG. 7D is a schematic diagram of the message projection module of the injection safety protection device according to the embodiment of the present invention, and the message projection module projects the injection message on the thigh of the patient.

8 is a schematic diagram of the information projection module of the injection safety protection device projecting a plurality of injection blocks on different body parts of a patient according to an embodiment of the present invention.

FIG. 9 is a flowchart of steps of an injection safety protection method according to an embodiment of the present invention.

The following are specific embodiments to illustrate the embodiments of the present invention, and those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to the actual size, and are stated in advance. The following embodiments will further describe the related technical contents of the present invention in detail, but the disclosed contents are not intended to limit the protection scope of the present invention. In addition, the term "or" as used herein should include any one or a combination of more of the associated listed items, as the case may be.

Please refer to FIG. 1 to FIG. 6 , wherein FIG. 1 is an injection safety protection device according to an embodiment of the present invention 2 is a block diagram of a control module, a setting operation interface module and a transmission module of an injection safety protection device according to an embodiment of the present invention; FIG. 3 is a control module of an injection safety protection device according to an embodiment of the present invention. , the block diagram of the setting operation interface module and the transmission module; FIG. 4 is a block diagram of the information projection module and the control module of the injection safety protection device according to the embodiment of the present invention; FIG. 5 is the injection safety protection according to the embodiment of the present invention. A block diagram of a control module and a transmission module of the device; FIG. 6 is a block diagram of a control module and a setting operation interface module of an injection safety protection device according to an embodiment of the present invention.

The injection safety protection device of the embodiment of the present invention is suitable for a syringe, and can be sleeved on the syringe (the syringe can be replaced after use), or be set apart from the syringe. As shown in FIG. 1 , the injection safety protection device according to the embodiment of the present invention may include a message projection module 10 , a control module 20 , a setting operation interface module 30 and a transmission module 40 . The control module 20 can be connected to the information projection module 10 and the setting operation interface module 30 .

As shown in FIG. 2 , a user 91 , such as a patient, a hospital nurse or a home caregiver, etc., can input a personalized injection request 31 on the setting operation interface module 30 , including setting the patient The patient number 32 and the injection request information of the patient 95 with the patient number 32 , such as the dose to be injected 33 , the type of injection drug 34 , and the injection time interval 35 , are transmitted to the control module 20 through the setting operation interface module 30 . Alternatively, the user 91 can operate the electronic device 90 (such as but not limited to a mobile phone, a watch or a computer) to output the personalized injection request 31, which is transmitted to the control module through the transmission module 40 such as but not limited to Wifi or other wireless transmission technologies 20.

Since the injection safety protection device of the embodiment of the present invention can provide input of the patient number 32 of the patient 95 to be injected, the same injection safety protection device can be used by multiple people.

If necessary, a manager such as a medical staff can preset a plurality of injectable body parts 801-80n according to different types of injection medicines 34, and the injectable body parts 801-80n of different types of injection medicines 34 may be different. Additionally or alternatively, as shown in FIG. 3 , the user 91 may indicate in the personalized injection request 31 all body parts that each patient 95 can inject (eg, administer insulin) to 801-80n, for example, select and dynamically set specific injectable body parts 802-80n from the body parts 801-80n preset by the administrator.

It is worth noting that the control module 20 can select one body part 802 from a plurality of injectable body parts 801-80n according to the personalized injection requirements 31, and decides the body part to be injected each time an injection is required. Which one of the multiple positions of 802 to perform injection, such as injection position 93 , outputs the corresponding control signal 23 . As shown in FIG. 4 , the control module 20 outputs the control signal 23 to control the information projection module 10 to project the corresponding injection message 11 , including projecting an injection area 12 , on the body part 802 of the patient 95 determined to be injected each time. If necessary, the information projection module 10 can project calibration points for each injection area to assist the user in positioning, as a positioning aid for the relative positions of the multiple sub-injection areas, and to project the sub-injection area 13 to be injected.

If necessary, the setting operation interface module 30 can display the relevant injection instruction information of the sub-injection area 13 of the body part 802 of the patient 95 instructed by the control module 20 to inject each time, and the projection state information of the information projection module 10, such as The starting time of projection, the end of projection time, the length of projection time, the injection information 11 (projected light intensity, light wavelength) for each projection, etc., can also be transmitted to the electronic device 90 of the user 91 for display if necessary. for viewing by user 91.

The control module 20 can record the position of each injection of each patient 95 (the name or the patient number 32 thereof), the time of each injection (for example, the time when the information projection module 10 performs projection), and the time between multiple injections. Injection process information such as interval time to establish a personal injection history21. The personal injection history 21 may include a configuration table for the rotation of a person's injection site, for example, a table in the configuration table for the rotation of the personal injection site or a portrait to indicate the area that should be injected, and to indicate the injected area with other patterns or symbols by projection. area.

The control module 20 can decide to inject another sub-injection area next time according to the individual injection process 21 to output a corresponding control signal 23 to indicate the sub-injection area marked by the information projection module 10 in a projection manner each time and the previous injection in a projection manner. The marked sub-injection areas 13 are different and not adjacent, said not The adjacency rule is based on the spatial distance with the largest difference between two consecutive injections in time and space.

That is to say, every time the patient 95 needs to be injected with a syringe, the control module 20 can automatically control or the user 91 can manually operate the information projection module 10 to project one of the body parts 801 to 80n of the patient 95 Injection message 11. Since the injection of insulin and other substances will cause fat accumulation, the body will swell after accumulation, and the absorption rate of insulin will be affected when re-injected before the swelling. It is necessary to rotate the injection position all the time. The longer the interval between multiple injections at the same position, the better it is good. Therefore, the injection information 11 projected by the information projection module 10 each time is different from the injection information projected by the other times, and it is optimal that the position of each injection is separated from the previous injection by a predetermined distance, so as to avoid forgetting, mistakes and omissions in a short time. , The handover is unclear, which leads to the situation where the needle is placed at the repeated site.

As shown in FIG. 5 , the control module 20 can then transmit the individual injection history 21 of each patient 95 to the setting operation interface module 30 for display, and/or upload the medical treatment via the transmission module 40 to the remote server 96 . Database 961 records. If different syringes are used for injection in different places or when they go to the hospital 83 to see a doctor, the medical staff of the hospital 83 can obtain the personal injection history 21 of the patient 95 from the remote server 96 (through medical equipment), which can be used as a case and diagnosis and treatment. The reference information may be provided to the electronic device 90 of the patient 95 or the user 91 if permitted.

As shown in FIG. 6 , to prevent the user 91 from forgetting to inject, the control module 20 can output an injection reminder signal 27 to the setting operation interface module 30 for display each time it determines that the injection time 26 is reached, or output it to the user The electronic device 90 of the user 91 is displayed on the electronic device 90 to remind the user 91 to operate the message projection module 10 to project one of the injection messages 11 on one of the body parts of the patient 95 indicated by the control module 20 by means of audio or video.

Please refer to FIG. 7A , which is a schematic diagram of the information projection module of the injection safety protection device projecting injection information on the abdomen of a patient according to an embodiment of the present invention.

As shown in FIG. 7A, the information projection module 10 can project on the abdomen of the patient (eg, but not Limited to laser grating projection or DLP projection), an injection area RJ1 is projected, and a plurality of sub-injection areas, such as four sub-injection areas, are divided by the projected (light) lines. If necessary, the information projection module 10 can project different (numbers) numbers, symbols, codes, characters or patterns in different sub-injection areas, so as to distinguish different sub-injection areas.

Since only one of the sub-injection areas is injected each time, for example, when it is the turn to inject the sub-injection area numbered 2, the information projection module 10 uses a projection method (such as strong light intensity or projection of specific stripes, light colors, etc.) or other patterns, etc.) to mark the sub-injection area with injection number 3 to be injected.

Please refer to FIG. 7B , which is a schematic diagram of the information projection module of the injection safety protection device projecting the injection information on the abdomen of the patient according to the embodiment of the present invention. The same technical content as the foregoing will not be repeated here.

As shown in FIG. 7B , the information projection module 10 can project an injection area RJ2 on the abdomen of the patient, and divide a plurality of sub-injection areas, such as four sub-injection areas, through the projected (light) lines. The information projection module 10 can perform more detailed division in each sub-injection area, so as to divide each sub-injection area into a plurality of sub-injection areas, for example, seven sub-injection areas.

For example, the information projection module 10 can divide the secondary sub-injection areas into a plurality of circle patterns by projection, and use projection methods (such as strong light intensity or project specific stripes, light colors or other patterns, etc.) ) marks one of the sub-injection areas to be injected in the sub-injection area with injection number 3.

The secondary sub-injection area to be injected marked by the information projection module 10 in a projection manner each time needs to be different from the previously marked secondary sub-injection area to be injected. Even, the sub-injection area marked by the information projection module 10 by projection (eg numbered 3) is different from the previously marked sub-injection area (eg numbered 2) to be injected. What's more, the body parts indicated for injection are different each time, for example, the abdomen was injected as shown in Fig. 7A or 7B before, and the thigh was injected as shown in Fig. 7C this time.

Please refer to FIG. 7C , which is a message projection of the injection safety protection device according to the embodiment of the present invention Schematic diagram of the injection module projecting the injection message on the patient's thigh. The same technical content as the foregoing will not be repeated here.

As shown in FIG. 7C , the information projection module 10 can project an injection area RJ3 on the patient's leg, such as the right leg, and divide a plurality of sub-injection areas, such as two sub-injection areas, through the projected (light) lines, and The sub-injection area with injection number 2 to be injected is marked by projection.

Please refer to FIG. 7D , which is a schematic diagram of the message projection module of the injection safety protection device according to the embodiment of the present invention, the message projection module projecting the injection message on the thigh of the patient. The same technical content as the foregoing will not be repeated here.

The division range of the two sub-injection areas of the injection area RJ4 projected by the information projection module 10 shown in FIG. 7D is different from the division range of the two sub-injection areas shown in FIG. 7C , and the division ranges of the multiple sub-injection areas The arrangement is also different, but the present invention is not limited to the marking method, content and area size of each injection area and each sub-injection area, the arrangement of multiple sub-injection areas, the number of divided sub-injection areas, and the divided sub-injection areas. The number of sub-injection areas and the arrangement of multiple sub-injection areas.

Please refer to FIG. 8 , which is a schematic diagram of the information projection module of the injection safety protection device according to the embodiment of the present invention projecting a plurality of injection blocks on different body parts of a patient. The same technical content as the foregoing will not be repeated here.

As shown in FIG. 8 , the information projection module 10 can be used on multiple body parts of the patient, such as but not limited to left arm, right arm, left upper buttock, left lower buttock, right upper buttock, right lower buttock, left leg, right leg , projecting multiple injection areas A~H, respectively. Each injection only needs to project one of the injection areas A~H. For example, this injection only needs to project the injection area A.

The injection area A can be divided into multiple sub-injection areas A1-A6, the injection area B can be divided into multiple sub-injection areas B1-B6, the injection area C can be divided into multiple sub-injection areas C1-C6, and so on.

The information projection module 10 only projects one of the injection areas A of one of the body parts for each injection, and only marks one of the sub-injection areas A1 in the injection area A by projection, representing the area to be injected this time. Each time is preferably different and not adjacent to the sub-injection area of the previous injection operation. Taking injection area A as an example, the injection operation is performed this time as the sub-injection area A1, and the next time is the sub-injection area A2 (with the sub-injection area). The area A1 is not adjacent), and the next time is the sub-injection area A3 (not adjacent to the sub-injection areas A1 and A2), and so on. Additionally or alternatively, each time the injection area is different from the previous injection operation, for example, the injection operation this time is the sub-injection area A1 of the injection area A of the right arm, and the next injection area is the sub-injection area of the injection area B of the right upper buttocks B2, and so on.

Please refer to FIG. 9 , which is a flowchart of the steps of the injection safety protection method according to an embodiment of the present invention. The injection safety protection method of the embodiment of the present invention may include steps S101 , S103 , S105 , S106 , S107 , S109 , S111 , S113 , S115 , S117 , S119 , S121 , and S123 as shown in FIG. 9 .

In step S101, a patient number is set, such as but not limited to a medical record number, which can be retrieved from a medical database.

In step S103 , the type of injection medicine applicable to the condition of the patient of the patient number is set, which can be retrieved from the medical database.

In step S105, the injection dose of the type of injection drug is set, which can be retrieved from the medical database.

In step S106, the injection interval time is set.

In step S107, injectable body parts are set.

In step S109, the injection position is determined.

In step S111, it is determined whether or not the injection time has come. If not, maintain the determined injection site. If yes, execute the next step S113.

In step S113, the user is reminded to perform injection.

In step S115, the injection message (including the injection message) is projected at the injection site of the patient's body part contains an injection area).

In step S117, the sub-injection area/position indicating the injection is marked.

In step S119, the injection time/projection time is counted.

In step S121, the next injection time is determined.

In step S123, the personal injection history is recorded. Next, according to the multiple injection records of the individual injection history, return to step S109 to determine a different injection position for the next time.

One of the beneficial effects of the present invention is that the injection safety protection device and the method thereof provided by the present invention have the following advantages: 1. One machine can be used by many people, the operation is simple, convenient and effective; 2. There is no need to use paper or glue 3. Easy to combine with injection needle/pen; 4. Automatically give individual users injection advice and other message reminders; Server exchange data function; 6. The structure is simple and effective, the cost is reasonable, and it has a promotion price.

The contents disclosed above are only preferred feasible embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, any equivalent technical changes made by using the contents of the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.

10: Message Projection Module

20: Control Module

30: Set the operation interface module

40: Transmission module

90: Electronics

96: Remote server

Claims (6)

An injection safety protection device, suitable for a syringe, and comprising: a message projection module configured to project a message on one of a plurality of body parts of a patient each time the syringe is required to inject a patient Injection information, the injection information of each projection is different from the injection information of other projections, each injection information includes an injection area, and each injection area includes a plurality of sub-injection areas, and the information projection module is projected on each of the injection areas. The light lines on the body part divide each injection area into the plurality of sub-injection areas, and the information projection module projects different numbers, symbols, codes, characters, patterns or any combination thereof in the plurality of sub-injection areas. In order to distinguish the different sub-injection areas, the information projection module divides each sub-injection area in more detail through projected light lines, so as to mark a plurality of secondary sub-injection areas in each of the sub-injection areas, The information projection module is configured to project calibration points for each of the injection areas to assist the user in positioning, as a positioning aid for the relative positions of the plurality of sub-injection areas, and by projecting strong light intensity, specific light stripes, and specific light colors or a specific light pattern on the body part, marking one of the sub-injection areas for injection, to instruct the use of the syringe to inject the body part in the marked sub-injection area; and a control module, connected to The information projection module is configured to perform the injection request information according to a patient number included in a personalized injection request, the patient's dose to be injected by the patient number, the type of injection drug, and the injection time interval. When injecting, select one of the body parts from the plurality of body parts that can be injected, and decide which sub-injection area of the plurality of sub-injection areas on the selected body part to inject to Output a control signal to control the information projection module to project each injection message, record the sub-injection area, each injection time, and multiple injections of each injection The interval time between injections to establish a personal injection history, the personal injection history includes a personal injection site rotation configuration table, the sub-injection areas that should be injected are marked in the table in the personal injection site rotation configuration table or in the portrait, and Projecting other patterns or symbols to indicate each sub-injection area that has been injected, the control module determines to inject another sub-injection area next time according to the individual injection process to output the corresponding control signal to indicate each time the sub-injection area The second sub-injection area marked by the information projection module in the projection mode is different from the previous sub-injection area marked by the projection mode and is not adjacent, wherein the non-adjacent rule is adopted in time and space, two consecutive times Based on the spatial distance between injections with the greatest difference. The injection safety protection device of claim 1, further comprising a transmission module, connected to the control module and a remote server, configured to upload the personal injection process to a medical database of the remote server. The injection safety device of claim 2, wherein the transmission module is configured to transmit the personalized injection request from an electronic device to the control module. The injection safety protection device according to claim 1, wherein the control module is configured to output an injection reminder signal every time the injection time is reached, so as to remind the operation of the message projection module to project the injection message. An injection safety protection method, applicable to a syringe, and comprising the following steps: injecting according to a patient number included in a personalized injection request, the patient's dose to be injected by the patient number, the type of injection drug, and the injection time interval Request information to determine at which location on which of the patient's body parts the injection is to be administered each time the syringe is to be used to inject the patient; project on the location of the body part where the injection was determined A corresponding injection message, each of which includes an injection area; the projection light line is on the body part to be injected to demarcate each of the injection areas dividing the plurality of sub-injection areas, wherein each of the injection areas includes a plurality of sub-injection areas; projecting calibration points for each of the injection areas to assist the user in positioning as a positioning aid for the relative positions of the plurality of sub-injection areas; Each sub-injection area is projected with different numbers, symbols, codes, texts, patterns or any combination thereof to distinguish the different sub-injection areas; more detailed division is performed in each of the sub-injection areas through the projected light lines , to mark multiple sub-injection areas in each of the sub-injection areas; according to the patient number included in the personalized injection request, the patient's dose to be injected, the type of injection drug, and the injection time of the patient number. Interval injection requires information to determine in which sub-injection area of the plurality of sub-injection areas on the body part to be injected to inject; by projecting stronger light intensity, specific light stripes, specific light colors Or a specific light pattern is placed on the body part, marking one of the sub-injection areas to be injected to indicate the sub-injection area marked with the syringe; record the sub-injection area for each injection, each injection time, the interval time of multiple injections to establish a personal injection course, wherein the personal injection course includes a personal injection site rotation configuration table; in the table or portrait in the personal injection site rotation configuration table, mark each The second sub-injection area, and the injected sub-injection area is marked with other patterns or symbols by projection; another sub-injection area for the next injection is determined according to the individual injection process; and the sub-injection area is marked by projection Another sub-injection area that is different from and not adjacent to the sub-injection area of the previous injection, wherein the non-adjacent rule is taken in time and space, and the spatial distance with the largest difference between two consecutive injections is according to according to. The injection safety protection method according to claim 5, further comprising the following steps: when judging whether the injection time is reached, outputting an injection reminder signal to remind projection of the injection message.

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