Syringe piston and recognizable syringe
By placing the RF tag in a position that does not directly contact the piston rod, and using the support column and limit column structure to prevent wear, the problem of the RF tag of the syringe piston is solved, ensuring the identification and tracking function of the syringe, reducing the risk of cross-infection.
Patent Information
- Application Number
- CN202323154098.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-21
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-11-21
AI Technical Summary
In existing RFID technology, the RF tag on the syringe piston loses function due to wear, resulting in the injector being unable to be tracked, increasing the risk of cross-infection between patients.
A syringe piston is designed, and the RF tag is placed in the second mounting chamber that does not directly contact the piston rod, and the RF tag is prevented from shaking and wear through the support column and limit column structure. The piston rod does not contact the RF tag directly to avoid wear. , and at the same time, the active connection between the plug and the inner wall of the syringe is prevented from leaving the drug into the position of the radio frequency label.
It effectively reduces the wear risk of RF tags, ensures that the syringe can be continuously identified and tracked, prevents cross-infection, and prevents RF tags from being corroded by drugs.
Smart Images
Figure CN222238476U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to a syringe piston and an identifiable syringe. Background Art
[0002] Syringes are a commonly used medical device in the medical and health system, mainly used to inject liquid medicines into patients. In order to prevent cross-infection between different patients, it is necessary to avoid the reuse of syringes on different patients. Currently, radio frequency identification technology is usually used to identify and track syringes used by different patients.
[0003] Existing radio frequency identification technology realizes the identification and tracking functions of the syringe by embedding a radio frequency tag into the syringe and using a reader / writer chip to read the information stored in the radio frequency tag.
[0004] In the related art, the RFID tag syringe embeds the RFID tag between the piston rod and the rubber stopper. Since the user needs to push the piston rod to inject the drug, the piston rod will touch the RFID tag when pushing the piston rod. After multiple injections, the RFID tag may lose its tag function due to excessive wear, resulting in the syringe being unable to be tracked, and causing cross-infection between patients. Utility Model Content
[0005] The main purpose of the utility model is to provide a syringe piston, aiming to reduce the risk of damage to the radio frequency tag.
[0006] To achieve the above-mentioned purpose, the syringe piston proposed by the utility model comprises:
[0007] Rubber plug;
[0008] A plug body, the plug body comprising an upper cover and a lower cover, the rubber plug is connected to the lower cover and encloses a first installation cavity, the upper cover is arranged in the first installation cavity, and the upper cover and the lower cover enclose a closed second installation cavity; and
[0009] A radio frequency tag is arranged in the second installation cavity.
[0010] Optionally, the lower cover further includes a support column, wherein the support column is disposed on a side of the lower cover facing the upper cover, and the support column abuts against one side of the upper cover.
[0011] Optionally, a limiting groove is formed on a side of the upper cover facing the lower cover, and the support column is inserted into the limiting groove.
[0012] Optionally, the radio frequency tag is formed with a through hole, and the support column is inserted into the through hole.
[0013] Optionally, the upper cover includes at least three limiting posts, each of which is circumferentially spaced apart on the inner wall of the upper cover and abuts against the radio frequency tag.
[0014] Optionally, the rubber plug is snap-connected with the lower cover, and the upper cover is clamped and limited between the rubber plug and the lower cover, so that the upper cover is in sealing contact with the lower cover.
[0015] Optionally, the lower cover comprises an annular convex portion, an annular flange is formed on the side of the annular convex portion facing the rubber plug, an annular groove is formed on the inner wall of the rubber plug facing the lower cover, and the annular flange is snap-fitted with the annular groove.
[0016] The utility model also provides an identifiable syringe, which comprises a syringe and any one of the syringe pistons described above, and the rubber plug is movably mounted on the inner wall of the syringe.
[0017] Optionally, the syringe further includes a limiting ring, which is disposed on the inner wall of the syringe and is used to limit the syringe piston.
[0018] Optionally, the syringe further includes a protective cap, which is plugged into the injection port of the syringe.
[0019] In the technical solution of the utility model, the rubber plug and the lower cover are combined to form a first installation cavity, the upper cover is arranged in the first installation cavity and is combined with the lower cover to form a closed second installation cavity, the radio frequency tag is arranged in the second installation cavity, the radio frequency tag is arranged in the second installation cavity, the piston rod is connected to the lower cover, and the piston rod and the radio frequency tag are not in direct contact, so that the piston rod will not touch the radio frequency tag when it is pushed to complete the injection, so as to avoid the radio frequency tag from being excessively worn and losing its function, so that the syringe can be identified and tracked, thereby preventing cross infection; at the same time, when using a syringe to inject medicine, due to the active connection between the rubber plug and the inner wall of the syringe, the rubber plug and the inner wall of the syringe are not completely fitted, and a small amount of medicine usually remains on the inner wall of the syringe after the injection. The radio frequency tag is arranged in the closed second installation cavity, so that the medicine cannot be immersed in the second installation cavity, thereby preventing the radio frequency tag from being corroded by the medicine. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0021] Figure 1 An exploded view of an embodiment of a syringe piston provided by the utility model;
[0022] Figure 2 A schematic plan view of an exploded view of an embodiment of an identifiable syringe provided by the utility model;
[0023] Figure 3 This is a flow chart of an embodiment of the syringe label identification system provided by the utility model.
[0024] Description of Figure Numbers:
[0025] Label name Label name 1000 Syringe piston 222 Support column 1 Rubber stopper 3 RFID Tags 11 First installation cavity 31 Through Hole 12 Annular groove 2000 Identifiable syringes 21 Upper cover 4 Syringes 211 Second installation cavity 41 Limiting ring 212 Limit slot 42 Protective cap 213 Limit column 43 Injection port 22 Lower cover 5 Reader / Writer 221 Annular flange 51 antenna
[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0029] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0030] Please refer to Figure 1 and Figure 2 In order to solve the above problems, the utility model proposes a syringe piston 1000, comprising:
[0031] A rubber plug 1, a plug body and a radio frequency tag 3, wherein the plug body comprises an upper cover 21 and a lower cover 22, the rubber plug 1 is connected to the lower cover 22 and encloses a first installation cavity 11, the upper cover 21 is arranged in the first installation cavity 11, the upper cover 21 and the lower cover 22 enclose a second installation cavity 211, the radio frequency tag 3 is arranged in the second installation cavity 211, the piston rod is connected to the lower cover 22, the piston rod and the radio frequency tag 3 are not in direct contact, so that the piston rod will not touch the radio frequency tag 3 when being pushed to complete the injection, so as to avoid the radio frequency tag 3 from being excessively worn and losing its function, so that the syringe can be identified and tracked, so as to prevent cross infection; at the same time, when using a syringe to inject a drug, due to the active connection between the rubber plug 1 and the inner wall of the syringe, the rubber plug 1 is not completely fitted with the inner wall of the syringe, and a small amount of drug usually remains on the inner wall of the syringe after the injection, and the radio frequency tag 3 is arranged in the closed second installation cavity 211, so that the drug cannot be immersed in the second installation cavity 211, so as to avoid the radio frequency tag 3 from being corroded by the drug.
[0032] In one embodiment, the lower cover 22 further includes a support column 222, which is disposed on a side of the lower cover 22 facing the upper cover 21, and the support column 222 abuts against a side of the upper cover 21. The rubber plug 1, the upper cover 21, and the lower cover 22 are all elastic members, and the lower cover 22 and the rubber plug 1 are enclosed to form a second installation cavity 211, so the edge of the lower cover 22 is connected to the edge of the rubber plug 1. Normally, when using a syringe for injection, the piston rod pushes the lower cover 22 to move. Since the edge of the lower cover 22 is connected to the edge of the rubber plug 1, the edge of the rubber plug 1 is pushed by the lower cover 22 and keeps the same moving speed as the lower cover 22. The rubber plug 1 is an elastic member, and the center of the rubber plug 1 is not connected to the lower cover 22, so the moving speed of the center of the rubber plug 1 is less than the moving speed of the edge of the rubber plug 1. Therefore, when the syringe is pushed for injection, the center of the rubber plug 1 will be recessed toward the side facing the lower cover 22. The recess of the center of the rubber plug 1 toward the side facing the lower cover 22 will squeeze the upper cover 21, so that the upper cover 21 is recessed toward the side facing the lower cover 22, thereby squeezing the radio frequency tag 3 to contact with the upper cover 21 or the lower cover 22. Long-term and frequent contact will cause the radio frequency tag 3 to wear. The support column 222 abuts against the upper cover 21 to support the upper cover 21, thereby preventing the upper cover 21 from being recessed toward the side facing the lower cover 22 when the syringe is injected, so as to avoid the radio frequency tag 3 from contacting with the upper cover 21 or the lower cover 22 and causing wear.
[0033] In one embodiment, a limiting groove 212 is formed on the side of the upper cover 21 facing the lower cover 22, and the support column 222 is inserted into the limiting groove 212 to limit the position of the upper cover 21 to prevent the upper cover 21 from shaking in the first installation cavity 11, thereby ensuring the sealing of the second installation cavity 211, so that the residual medicine on the inner wall of the syringe cannot penetrate into the second installation cavity 211, thereby preventing the radio frequency tag 3 from being corroded by the medicine.
[0034] In one embodiment, the RFID tag 3 is formed with a through hole 31, and the support column 222 is penetrated in the through hole 31, which can limit the RFID tag 3 to prevent the RFID tag 3 from shaking in the second installation cavity 211 and frequently colliding with the upper cover 21 or the lower cover 22, resulting in excessive wear and unable to be identified.
[0035] Furthermore, the upper cover 21 includes at least three limiting posts 213. In one embodiment, the number of the limiting posts 213 is six. The six limiting posts 213 are circumferentially spaced on the inner wall of the upper cover 21 and abut against the RFID tag 3. The six limiting posts 213 can limit the RFID tag 3 to prevent the RFID tag 3 from shaking. At the same time, the limiting posts 213 reduce the contact area between the edge of the RFID tag 3 and the inner wall of the upper cover 21, further reducing the wear and tear caused by the contact between the RFID tag 3 and the upper cover 21.
[0036] It can be understood that the connection between the upper cover 21, the lower cover 22 and the rubber plug 1 can be connected by the lower cover 22 being clamped with the rubber plug 1, the upper cover 21 being clamped with the lower cover 22, or by the lower cover 22 being clamped with the rubber plug 1, the upper cover 21 being abutted with the rubber plug 1. In one embodiment, the rubber plug 1 is clamped with the lower cover 22, and the upper cover 21 is clamped and limited between the rubber plug 1 and the lower cover 22, so that the upper cover 21 is sealed and abutted with the lower cover 22, so that the second installation cavity 211 is closed, thereby preventing the drug from being immersed and corroding the radio frequency tag 3.
[0037] Further, the lower cover 22 and the rubber plug 1 can be connected in a manner that a buckle is provided on the lower cover 22, and a buckle is provided on the rubber plug 1, and the lower cover 22 and the rubber plug 1 are connected by the buckle and the buckle, and an annular flange 221 is formed on one of the rubber plug 1 and the lower cover 22, and an annular groove 12 is formed on the other of the rubber plug 1 and the lower cover 22, and the annular flange 221 and the annular groove 12 are engaged in a snap-fit manner to achieve the connection between the lower cover 22 and the rubber plug 1. In one embodiment, the connection between the lower cover 22 and the rubber plug 1 is achieved by the engagement of the annular flange 221 and the annular groove 12.
[0038] It can be understood that the rubber plug 1 may form an annular flange and the lower cover 22 may form an annular groove, or the rubber plug 1 may form an annular groove and the lower cover 22 may form an annular flange. In one embodiment, the lower cover 22 includes an annular convex portion, and an annular flange 221 is formed on the side of the annular convex portion facing the rubber plug 1, and an annular groove 12 is formed on the inner wall of the rubber plug 1 facing the lower cover 22. The annular flange 221 and the annular groove 12 are engaged with each other to make the lower cover 22 and the rubber plug 1 engaged, and the piston rod is in direct contact with the lower cover 22. When the syringe is pushed to inject, the lower cover 22 is subjected to a large thrust, while the annular convex portion is complete and has a small deformation amplitude after being subjected to force. Therefore, the annular flange of the annular convex portion is provided on the lower cover 22, and the rubber plug 1 is subjected to the force of the piston rod through the conduction of the lower cover 22, so the force on the rubber plug 1 is small, and the annular groove is provided on the rubber plug 1. Such an arrangement makes the connection between the rubber plug 1 and the lower cover 22 less likely to fall off.
[0039] The present utility model also proposes an identifiable syringe 2000, which includes a syringe barrel 4 and a syringe piston 1000. The specific structure of the syringe piston 1000 refers to the above-mentioned embodiment. Since the identifiable syringe 2000 adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.
[0040] In one embodiment, the syringe 4 also includes a limiting ring 41, which is disposed on the inner wall of the syringe 4 and is used to limit the syringe piston 1000. The syringe piston 1000 cannot be separated from the syringe 4 due to the limiting ring 41, so that the syringe 4 can also be tracked and identified.
[0041] In one embodiment, the syringe 4 further includes a protective cap 42, which is plugged into the injection port 43 of the syringe 4. When the syringe draws out the drug but does not inject, the protective cap 42 can prevent foreign matter from entering the syringe 4 and contaminating the drug.
[0042] Please refer to Figure 3 When identifying the radio frequency tag 3, the user outputs a signal to the radio frequency tag 3 through the antenna 51 of the reader 5. After receiving the signal, the radio frequency tag 3 encodes the stored information into a radio frequency signal and transmits it to the reader 5. The reader 5 parses and processes the radio frequency signal, and finally displays the data parsed by the reader 5 through a display electrically connected to the reader 5. The user identifies different syringes by comparing the data.
[0043] The radio frequency tag uses an electronic tag that complies with the ISO / IEC 18000-6C:2013 standard. The working mode is passive, the carrier frequency is 920Mhz, the substrate material is PET, the tag operating temperature range is -40℃~85℃, it is very durable and adaptable to various harsh environments, ethylene oxide sterilization has no effect on the tag performance, and the data reading and writing chip uses an integrated chip from Alien and NXP, which can realize encrypted reading and writing.
[0044] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A syringe piston (1000), characterized in that: include: Rubber plug (1); A plug body, the plug body comprising an upper cover (21) and a lower cover (22), the rubber plug (1) and the lower cover (22) being connected and enclosing a first installation cavity (11), the upper cover (21) being arranged in the first installation cavity (11), and the upper cover (21) and the lower cover (22) enclosing a closed second installation cavity (211); and A radio frequency tag (3), wherein the radio frequency tag (3) is arranged in the second installation cavity (211).
2. The syringe piston (1000) according to claim 1, characterized in that The lower cover (22) further comprises a support column (222), wherein the support column (222) is arranged on a side of the lower cover (22) facing the upper cover (21), and the support column (222) abuts against one side of the upper cover (21).
3. The syringe piston (1000) according to claim 2, characterized in that A limiting groove (212) is formed on one side of the upper cover (21) facing the lower cover (22), and the supporting column (222) is inserted into the limiting groove (212).
4. The syringe piston (1000) according to claim 3, characterized in that The radio frequency tag (3) is formed with a through hole (31), and the support column (222) is inserted into the through hole (31).
5. The syringe piston (1000) according to claim 4, characterized in that The upper cover (21) comprises at least three limiting posts (213), each of the limiting posts (213) being arranged at intervals in the circumferential direction on the inner wall of the upper cover (21) and abutting against the radio frequency tag (3).
6. The syringe piston (1000) according to any one of claims 1 to 5, characterized in that The rubber plug (1) is snap-connected with the lower cover (22), and the upper cover (21) is clamped and limited between the rubber plug (1) and the lower cover (22), so that the upper cover (21) and the lower cover (22) are in sealing contact.
7. The syringe piston (1000) according to claim 6, characterized in that The lower cover (22) comprises an annular convex portion, a side of the annular convex portion facing the rubber plug (1) is formed with an annular flange (221), an inner wall of the rubber plug (1) facing the lower cover (22) is formed with an annular groove (12), and the annular flange (221) is snap-fitted with the annular groove (12).
8. An identifiable syringe (2000), characterized in that: The identifiable syringe (2000) comprises a syringe barrel (4) and a syringe piston (1000) as claimed in any one of claims 1 to 7, and the rubber stopper (1) is movably mounted on the inner wall of the syringe barrel (4).
9. The identifiable syringe (2000) according to claim 8, characterized in that: The syringe (4) further comprises a limiting ring (41), wherein the limiting ring (41) is arranged on the inner wall of the syringe (4) and is used to limit the position of the syringe piston (1000).
10. The identifiable syringe (2000) according to claim 8 or 9, characterized in that: The syringe (4) further comprises a protective cap (42), wherein the protective cap (42) is plugged into the injection port (43) of the syringe (4).