TWI841305B - Medical injection system - Google Patents

Abstract

A medical injection system is provided. The medical injection system comprises an injection start feedback module. The injection start feedback module comprise an actuator and a click collar, which comprise a click plate and a click surface opposite to each other, respectively. The click collar further comprises a click surface protrusion to restrict the click surface from contacting the click plate. The actuator further comprises a click plate groove to accommodate the click surface protrusion at the start of injection and then the click surface contacts the click plate to generate an injection start feedback prompt.

Description

Medical injection system

The present invention relates to the field of medical injection systems, and in particular, to a medical injection system that generates an injection start feedback prompt after automatic medication administration.

Medical fluids or drugs can be administered to patients through an injection system. If the patient needs to take drugs frequently, in order to improve the convenience of injection, the injection system should be self-operable and portable by the patient. Therefore, portable medical injection systems have become a common product on the market.

Patients can use portable medical injection systems to self-administer specific medical fluids or drugs. When using conventional portable medical injection systems, patients cannot know in time whether the injection has started or completed. Not knowing when the injection has started or completed may cause patients to remove the injection system too early or too late, which may result in the drug not being fully injected, or requiring more operating time to complete the injection, and causing great inconvenience to patients.

Therefore, it is necessary to add a design of injection start feedback prompt in the medical injection system that automatically triggers injection.

The present invention is made in view of the above problems and provides a medical injection system including an injection start feedback prompt, especially a medical injection system for an automatic trigger injection mechanism.

The present invention also provides a medical injection system with an injection completion feedback mechanism.

To solve the above-mentioned problem, the present invention provides a medical injection system, including: an injection start feedback module, and further including: a brake, which includes a strike plate and one or more strike plate grooves located on the strike plate; and a strike ring, which surrounds to form a through structure for accommodating the brake, and the through structure of the strike ring further includes: a strike surface, which is configured to correspond to the strike plate of the brake; and one or more strike surface protrusions, which are configured to limit the strike surface from contacting the strike plate; wherein when the strike ring rotates so that the one or more strike surface protrusions are accommodated in the one or more strike plate grooves, the strike surface contacts the strike plate to generate an injection start feedback prompt.

In an embodiment of the present invention, the medical injection system further comprises: an injection module, and further comprises: a starting rotor, one end of which contacts the impact ring to drive the impact ring to rotate when the starting rotor rotates, and the starting rotor surrounds a through structure to accommodate the brake, wherein the through structure of the starting rotor further comprises: an inner annular surface; and one or more accommodating spaces, arranged on the inner annular surface to The brake further comprises: one or more upper spring pieces, which are aligned or not aligned with the one or more impact plate grooves, and the inner annular surface squeezes the one or more upper spring pieces inward; when the starter rotor rotates to rotate the one or more accommodating spaces to the one or more upper spring pieces of the brake, the one or more impact surface protrusions simultaneously rotate into the one or more impact plate grooves of the brake.

In an embodiment of the present invention, the impact ring further includes one or more rotation blocks, which are configured to contact the one end of the starter rotor, and the one or more accommodating spaces of the starter rotor are aligned or not aligned with the one or more impact surface protrusions of the impact ring.

In the embodiment of the present invention, the other end of the starter rotor includes one or more rotating bevels; and the injection module further includes: a needle cover, which includes one or more motion turning protrusions contacting the one or more rotating bevels, and when the needle cover moves toward an axial direction of the medical injection system, the one or more motion turning protrusions push the one or more rotating bevels to make the starter rotor rotate around the axial direction and drive the impact ring to rotate.

In an embodiment of the present invention, the medical injection system further comprises: a cartridge module, and further comprises: a plunger rod, which comprises a plunger rod groove relative to the one or more upper springs, and the plunger rod is configured to be accommodated in the brake or the needle cover and move toward another axial direction of the medical injection system; wherein the brake further comprises one or more rotating slide grooves, and when the one or more upper springs are squeezed inwardly to resist When the piston rod groove is engaged, the brake restricts the piston rod from moving toward the other axial direction; wherein the penetration structure of the starter rotor further includes: one or more rotating protrusions, which are located on the inner annular surface, and are used to move along the one or more rotating slide grooves to rotate the starter rotor, and when the one or more accommodating spaces rotate to the one or more upper spring sheets, the one or more upper spring sheets are no longer squeezed inward by the inner annular surface.

In the embodiment of the present invention, the medical injection system can be used with a medicine bottle, the medicine bottle surrounds a space for accommodating an injection and has a needle body, and the plunger rod is arranged in the space. When the plunger rod moves toward an axial direction of the medical injection system, the plunger rod discharges the injection from the needle body.

In an embodiment of the present invention, when the plunger rod moves toward the other axial direction of the medical injection system, the impact surface of the impact ring contacts the impact plate of the brake to generate the injection start feedback prompt.

In an embodiment of the present invention, the medical injection system further includes a housing to accommodate the injection module, wherein the brake is fixed to the housing, and when the cartridge module is pressed against the skin of a patient, the needle cover moves toward the axial direction of the medical injection system, and the one or more motion turning protrusions push the one or more rotating inclined surfaces to rotate the starting rotor around the axial direction.

In the embodiment of the present invention, the rotating slide groove of the brake is a groove arranged clockwise from the axial direction toward the other axial direction.

In an embodiment of the present invention, the medical injection system may further include an injection completion feedback module, wherein the injection completion feedback module includes: a touch ring, surrounding to form a through-structure for accommodating the brake; and a compression sleeve ring, surrounding to form a through-structure for accommodating the plunger rod, and forming an impact surface relative to the touch ring in the through-structure of the compression sleeve ring, wherein when the touch ring contacts the impact surface of the compression sleeve ring, an injection completion feedback prompt is generated.

In an embodiment of the present invention, the brake further includes one or more lower spring plates. When the one or more lower spring plates are pushed outward by the plunger rod, the one or more lower spring plates abut against the impact ring to limit the impact ring from contacting the impact surface of the compression ring.

In an embodiment of the present invention, after the plunger rod moves toward the other axial direction of the medical injection system, the plunger rod no longer pushes the one or more lower springs of the brake outward.

In an embodiment of the present invention, the medical injection system may further include a housing to accommodate the cartridge module and the injection module, and the compression collar is fixed to the housing.

In an embodiment of the present invention, the impact surface of the compression ring further includes one or more through holes, so that the one or more motion turning protrusions of the needle cover pass through them to contact the rotating inclined surface of the starting rotor.

In an embodiment of the present invention, the compression ring further includes a compression structure to fix the medicine bottle.

In an embodiment of the present invention, the medical injection system may further include a cap-pulling structure, wherein the cap-pulling structure includes: a cap, surrounding to form a structure for accommodating at least a portion of the cartridge module; and a sleeve-pulling cover, arranged to be coupled to the cap, and the sleeve-pulling cover further includes a needle sleeve remover, when the cap-pulling structure is disassembled from the medical injection system, the needle sleeve remover removes a needle sleeve to expose a needle body.

In an embodiment of the present invention, the sheath removal cover is arranged to accommodate the needle body of the medicine bottle. When the sheath removal structure is removed from the medical injection system, the needle sheath remover removes a needle sheath corresponding to the needle body to expose the needle body.

In an embodiment of the present invention, the medical injection system may further include a check module, wherein the check module includes: a front shell, surrounding to form a structure for accommodating at least a portion of the cartridge module and the injection module, and including one or more fixing holes; and a carrier, accommodated in the front shell, and including one or more fixing protrusions opposite to the one or more fixing holes of the front shell, so as to fix the carrier to the The front shell body, and the carrier further includes one or more spring sheets, which are coupled to the needle cover to limit the needle cover from moving in the other axial direction of the medical injection system, wherein the carrier further includes one or more fixing sheets relative to the one or more spring sheets, when the needle cover moves in the axial direction of the medical injection system, the one or more spring sheets are pressed and accommodated in the one or more fixing sheets, and no longer limit the movement of the needle cover.

In an embodiment of the present invention, the needle cover further includes one or more buckles, and the front housing further includes one or more opposite annular protrusions. When the one or more springs no longer restrict the movement of the needle cover, the needle cover moves toward the other axial direction of the medical injection system, so that the one or more annular protrusions abut against the one or more buckles to restrict the needle cover from moving toward the axial direction of the medical injection system again.

In the embodiment of the present invention, when the one or more spring sheets no longer restrict the movement of the needle cover, the needle cover moves toward the other axial direction of the medical injection system, and the one or more fixed protrusions restrict the movement range of the needle cover.

In the medical injection system of the present invention, by means of the setting of the starter rotor, the displacement of the needle cover along the axial direction can be used to drive the starter rotor to rotate along the axial direction, and release the restriction of the brake on the plunger in the cartridge module to trigger the injection. By means of the setting of the brake, and in combination with the setting positions of the impact ring and the starter rotor, when the injection starts, the impact surface of the impact ring can contact the impact plate of the brake, and an injection start feedback prompt is generated. At the same time, by means of the setting of the brake, when the injection is completed, the plunger can no longer cause the brake to restrict the impact ring to contact the compression ring, and an injection completion feedback prompt is generated. Therefore, when the user intuitively presses the needle of the injection system of the present invention against the skin, the injection can be automatically triggered and prompts can be issued when the injection starts and is completed, thereby improving the accuracy and convenience of self-administration of medical fluids or drugs.

100:Medical injection system

101: Remote

102: Proximal

110: Covering structure

1110: Cap

1111: Cap fixing hole

1112: Cap external thread

1120: Cap body

1121: Internal thread of cap body

1130: Pull out the cover

1131: Pull-out cover fixing button

1132: Needle sheath remover

120: Shell

121: Front shell

1211:Fixing hole

1212: Ring-shaped protrusion

122: rear shell

1221:Fixing hole

123: Fixed button

130: Injection module

1310: Brake

1311: Rotating chute

1312, 1312’: Adding the bullet

1313: Lower the shrapnel

1320: Start the rotor

1321, 1321’: Rotating inclined plane

1322, 1322’: Rotating protrusion

1323: Accommodation space

1330: Needle cover

1331, 1331’: Movement turning block

1332, 1332’: fixing holes

1334: Buckle

140: Cartridge module

1410: Guide rod

1420: Plunger rod spring

1430: Plunger rod

1431: plunger rod groove

1440: Piston

1450:Medicine bottle

1460:Needle sleeve

1470: Shell

150: Injection start feedback module

1510:Touch the ferrule

1511: Impact surface protrusion

1512, 1512’: Rotating block

1513: Impact surface

1513’: The back of the impact surface

1520: Needle sleeve spring

1531: Impact plate

1532: Impact plate groove

160: Injection completion feedback module

1610:Trigger ring spring

1620: Trigger Ring

1630:Compression ring

1631:Fixed structure

1632: Impact surface

1633: Perforation

1634:Compressed structure

170: Check module

1710: Buffer

1711:Fixed protrusion

1720: Link retainer

1721:Fixing hole

1722:Fixed protrusion

1730:Carrier

1731:Fixed protrusion

1732:Fixing hole

1733: Shrapnel

1740: Safety spring

In order to more clearly explain the implementation of this application or the technical solution in the prior art, the drawings required for the implementation or the prior art description will be briefly introduced below. Obviously, the drawings described below are only some implementations of this application. For those with ordinary knowledge in the technical field to which this invention belongs, other drawings can be obtained based on these drawings without creative labor.

Figure 1 is a three-dimensional diagram of the medical injection system disclosed in the embodiment of the present invention.

Figure 2 is a three-dimensional diagram of the medical injection system disclosed in the embodiment of the present invention, showing the removal of the capping structure, the front shell, and the rear shell.

Figure 3 is an exploded view of the cap removal structure of the medical injection system disclosed in the embodiment of the present invention.

Figure 4 is an exploded view of the cartridge module of the medical injection system disclosed in the embodiment of the present invention.

FIG5 is a cross-sectional view of the cartridge module of the medical injection system disclosed in the embodiment of the present invention.

Figure 6 is an exploded view of the injection module disclosed in the embodiment of the present invention.

Figure 7 is a three-dimensional diagram of the combination of the starting rotor and the needle cover disclosed in the embodiment of the present invention.

Figure 8 is a three-dimensional diagram of the brake and the starting rotor disclosed in the embodiment of the present invention.

Figure 9 is a three-dimensional diagram of the combination of the brake and the starter rotor disclosed in the embodiment of the present invention.

Figure 10 is a three-dimensional diagram of the combination of the brake and the plunger rod disclosed in the embodiment of the present invention.

Figure 11 is an exploded view of the injection start feedback module disclosed in the embodiment of the present invention.

Figure 12 is a side view and a top view of the impact ring disclosed in the embodiment of the present invention.

Figure 13 is an exploded view of the injection completion feedback module disclosed in the embodiment of the present invention.

Figure 14 is a three-dimensional diagram of the compression sleeve disclosed in the embodiment of the present invention.

Figure 15 is an exploded view of the check module disclosed in the embodiment of the present invention.

The following description contains specific information related to exemplary embodiments of the present invention. The drawings and the accompanying detailed descriptions of the present invention are exemplary embodiments only. However, the present invention is not limited to these exemplary embodiments. Other variations and embodiments of the present invention will occur to a person of ordinary skill in the art to which the present invention belongs. Unless otherwise specified, the same or corresponding elements in the drawings may be indicated by the same or corresponding drawing numbers. In addition, the drawings and illustrations in the present invention are generally not drawn to scale and are not intended to correspond to actual relative sizes.

For the purpose of consistency and ease of understanding, the same features are marked by numbers in the exemplary drawings (although in some examples they are not so marked). However, the features in different embodiments may differ in other aspects and should not be narrowly limited to the features shown in the drawings.

The phrases "at least one embodiment", "an embodiment", "multiple embodiments", "different embodiments", "some embodiments", "this embodiment", etc., may indicate that the embodiment of the present invention described in this manner may include specific features, structures, or characteristics, but not every possible embodiment of the present invention must include the specific features, structures, or characteristics. In addition, repeated use of the phrases "in one embodiment" and "in this embodiment" does not necessarily refer to the same embodiment, although they may be the same. In addition, phrases such as "an embodiment" used in connection with the "present invention" do not mean that all embodiments of the present invention must include specific features, structures, or characteristics, and should be understood as "at least some embodiments of the present invention" include the described specific features, structures, or characteristics. The term "coupled" is defined as connected, whether directly or indirectly through an intermediate element, and is not necessarily limited to physical connection. When the term "includes" is used, it means "including but not limited to", which explicitly points out the open inclusion or relationship of the described combination, group, series and equivalents.

In addition, for purposes of explanation and not limitation, specific details such as functional entities, technologies, protocols, standards, etc. are described to provide an understanding of the described technologies. In other examples, detailed descriptions of well-known methods, technologies, systems, architectures, etc. are omitted to avoid confusing the description with unnecessary details.

The terms "first", "second" and "third" in the specification of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the term "including" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or modules is not limited to the listed steps or modules, but optionally also includes unlisted steps or modules, or optionally also includes other steps or modules inherent to these processes, methods, products or devices.

The term "penetrating structure" in the specification and the above-mentioned drawings of the present invention refers to a hollow structure with two ends connected along the long axis of the medical injection system, for example, it can be a hollow structure with two ends connected along the axis or non-axis of the long axis of the medical injection system; in addition, the term "hollow structure" means a structure with a hollow interior, for example, it can be a hollow structure with a similar shape or a dissimilar shape relative to the external shape of the overall component.

The term "contain" in the specification and the above-mentioned drawings of the present invention means covering with a specific structure or space to contain other components, and unless specifically defined, containment includes full (or complete) containment and partial containment.

The present invention is described in further detail below with reference to the accompanying drawings.

The present invention generally relates to a medical injection system, which includes a modular design and a cartridge structure. A user can use the medical injection system to puncture the skin of a human or mammal (e.g., the same user or another patient) and administer a drug or a medical fluid to be injected. In some embodiments, the user can be an individual using the medical injection system of the present invention. In some embodiments, the patient can be the same individual as the user, or can be another individual who is the subject of drug administration performed by the medical injection system of the present invention. Since the medical injection system of the present invention can be operated by the same individual (e.g., the patient), the patient described herein, i.e., the user, can be the same individual. In some embodiments, the drug or medical fluid to be injected can be administered by the medical injection system. In some embodiments, an axis can be considered as a line formed between two ends (e.g., a proximal end and a distal end) of an axis in a medical injection system. In addition, in some embodiments, an axial direction can be defined as a direction along a longitudinal axis (e.g., a first axial direction can be toward the distal end of the medical injection system, while a second axial direction can be toward the proximal end of the medical injection system, or vice versa).

Please refer to FIG. 1, which is a three-dimensional diagram of a medical injection system disclosed in an embodiment of the present invention. The medical injection system 100 may include a cap removal structure 110, a shell 120, an injection module 130, and a cartridge module 140.

In some embodiments, the housing 120 may further include a front housing 121, a rear housing 122, and a fixing buckle 123, wherein the fixing buckle 123 may be disposed at the proximal end 102 of the medical injection system 100, and the rear housing 122 may be detachably coupled to the fixing buckle 123 and disposed near the proximal end 102 of the medical injection system 100, while the front housing 121 may be detachably coupled to the rear housing 122 and disposed near the distal end 101 of the medical injection system 100 to accommodate the injection module 130 and the cartridge module 140, and to form the external shape of the medical injection system 100, such as a cylindrical shape.

In some embodiments, the distal end 101 may be one of the two ends of the medical injection system 100 and is the puncture site facing the patient's skin when the medical injection system 100 is used, and the proximal end 102 may be the other of the two ends of the medical injection system 100 and is the site opposite to the distal end 101 when the medical injection system 100 is used.

In some embodiments, the front housing 121 may further include a fixing hole 1211 for coupling to a fixing protrusion 1731 of a carrier 1730 (described in the subsequent FIG. 15) to detachably fix the check module 170 (described in the subsequent FIG. 15). In some embodiments, the rear housing 122 may further include a fixing hole 1221 for coupling to a fixing structure 1631 of a compression collar 1630 (described in the subsequent FIG. 13 and 14) to detachably fix the injection completion feedback module 160 (described in the subsequent FIG. 13).

In some embodiments, the uncapping structure 110 may be disposed at the distal end 101 of the medical injection system 100, and may be detachably coupled to the front housing 121, so as to completely accommodate the injection module 130 and the cartridge module 140 after coupling. In some embodiments, when the uncapping structure 110 accommodates the injection module 130 and the cartridge module 140, the distal end 101 of the medical injection system 100 may be one of the two ends of the uncapping structure 110. In some embodiments, the uncapping structure 110 may further include a plurality of uncapping elements integrated together to form the uncapping structure 110. In some embodiments, at least one capping element in the capping structure 110 is detachably coupled to the front shell 121, and at least one capping element is detachably coupled to the injection module 130 or the cartridge module 140. In some embodiments, the capping elements in the capping structure 110 coupled to the front shell 121, the injection module 130 or the cartridge module 140 may be the same or different capping elements.

In some embodiments, the injection module 130 is used to automatically trigger the injection action when the medical injection system 100 is pressed against the skin. In some embodiments, the injection module 130 may further include a plurality of injection elements integrated together to generate the injection module 130, such as a brake 1310, a starter rotor 1320, and a needle cover 1330. In some embodiments, at least one of the injection elements in the injection module 130 is detachably coupled to other injection elements in the injection module 130. In some embodiments, at least one of the injection elements in the injection module 130 is detachably coupled to the uncapping structure 110, the shell 120, or the cartridge module 140. In some embodiments, the injection module 130 can serve as an operating structure for triggering the medical injection system 100 of the present invention to produce automatic injection.

In some embodiments, some of the components in the injection module 130 may be partially accommodated in the uncapping structure 110. In some embodiments, one or more injection components may be partially or completely accommodated by the uncapping structure 110, while other injection components may not be accommodated by the uncapping structure 110. In some embodiments, some of the components in the injection module 130 may be partially accommodated in the housing 120, for example, in the front housing 121, the rear housing 122, or the fixing button 123, or in the front housing 121, the rear housing 122, and the fixing button 123 at the same time. In some embodiments, one or more injection components may be partially or completely accommodated by the housing 120, for example, by the front housing 121, the rear housing 122, or the fixing buckle 123, or by the front housing 121, the rear housing 122, and the fixing buckle 123 at the same time, while other injection components may not be accommodated by the housing 120. In other embodiments, each injection component may be partially accommodated by the housing 120. In other embodiments, all injection components may be completely accommodated by the housing 120.

In some embodiments, the cartridge module 140 is used to contain an injection and deliver the injection to the patient through a needle. In some embodiments, the cartridge module 140 may further include a plurality of cartridge elements integrated together to form the cartridge module 140, such as a guide rod 1410, a plunger rod spring 1420, a plunger rod 1430, a piston 1440, a medicine bottle 1450, a needle sleeve 1460, and a housing 1470. In some embodiments, at least one cartridge element in the cartridge module 140 is detachably coupled to other cartridge elements in the cartridge module 140. The cartridge module 140 may contain a drug or a medical fluid to be injected. In some embodiments, at least one cartridge element in the cartridge module 140 is detachably coupled to the cap extraction structure 110, the housing 120, or the injection module 130. In some embodiments, at least one cartridge element in the cartridge module 140 is detachably fixed to the housing 120, for example, to the fixing buckle 123.

In some embodiments, some of the components in the cartridge module 140 may be partially accommodated in the uncapping structure 110. In some embodiments, one or more cartridge components may be partially or completely accommodated by the uncapping structure 110, while other cartridge components may not be accommodated by the uncapping structure 110. In some embodiments, some of the components in the cartridge module 140 may be partially accommodated in the injection module 130. In some embodiments, one or more cartridge components may be partially or completely accommodated by the injection module 130, while other cartridge components may not be accommodated by the injection module 130.

Please refer to FIG. 2, which is a three-dimensional diagram of the medical injection system cap removal structure 110, the front shell 121, and the rear shell 122 disclosed in the embodiment of the present invention. The medical injection system 100 may further include an injection start feedback module 150, an injection completion feedback module 160, and a check module 170. Since there are some common components between the injection module 130, the cartridge module 140, the injection start feedback module 150, the injection completion feedback module 160, and the check module 170, only some components in each module are marked in FIG. 2 to indicate the relative position distribution between the modules. The components in each module will be described in detail with the accompanying drawings later.

In some embodiments, the injection start feedback module 150 is used to generate a feedback prompt when the injection is started. In some embodiments, the injection start feedback module 150 can be arranged near the proximal end 102 of the medical injection system 100, and can be detachably coupled to one or more injection elements, such as a trigger ring 1510 and a needle sleeve spring 1520. In some embodiments, the injection start feedback module 150 can further include a plurality of injection start feedback elements integrated together to generate the injection start feedback module 150. In some embodiments, at least one of the injection start feedback elements in the injection start feedback module 150 is detachably coupled to other injection start feedback elements in the injection start feedback module 150. In some embodiments, at least one injection start feedback element in the injection start feedback module 150 is detachably coupled to the injection element.

In some embodiments, a portion of the components in the injection start feedback module 150 may partially accommodate one or more injection components. In some embodiments, one or more injection start feedback components may partially or completely accommodate one or more injection components, while other injection components may not be accommodated. In other embodiments, the injection start feedback module 150 may partially accommodate each injection component. In other embodiments, the injection start feedback module 150 may completely accommodate all injection components.

In some embodiments, the injection completion feedback module 160 is used to generate a feedback prompt when the injection is completed. In some embodiments, the injection completion feedback module 160 can be arranged at the far end 101 in the medical injection system 100 relative to the injection start feedback module 150, and can be detachably coupled to the housing 120 (e.g., the rear housing 122), one or more injection elements, and one or more cartridge elements. In some embodiments, the injection completion feedback module 160 can further include a plurality of injection completion feedback elements integrated together to generate the injection completion feedback module 160, such as a trigger ring spring 1610, a trigger ring 1620, and a compression collar 1630. In some embodiments, at least one of the injection completion feedback elements in the injection completion feedback module 160 is detachably coupled to other injection completion feedback elements in the injection completion feedback module 160. In some embodiments, at least one injection completion feedback element in the injection completion feedback module 160 is detachably coupled to the housing 120, the injection element, and the cartridge element. In some embodiments, at least one injection completion feedback element in the injection completion feedback module 160 is detachably fixed to the front housing 121 or the rear housing 122.

In some embodiments, a portion of the components in the injection completion feedback module 160 may partially accommodate one or more injection components. In some embodiments, one or more injection completion feedback components may partially or completely accommodate one or more injection components, while other injection components may not be accommodated. In other embodiments, the injection completion feedback module 160 may partially accommodate each injection component. In other embodiments, the injection completion feedback module 160 may completely accommodate all injection components.

In some embodiments, the check module 170 is used to prevent the needle from being exposed again after the injection is completed. In some embodiments, the check module 170 can be arranged near the distal end 101 of the medical injection system 100, and can be detachably coupled to the housing 120 (e.g., the front housing 121), and one or more injection components. In some embodiments, the check module 170 can further include a plurality of check elements integrated together to generate the check module 170, such as a buffer 1710, a connecting retainer 1720, a carrier 1730, and a safety spring 1740. In some embodiments, at least one of the check elements in the check module 170 is detachably coupled to other check elements in the check module 170. In some embodiments, at least one check element in the check module 170 is detachably coupled to the housing 120 and the injection element. In some embodiments, at least one check element in the check module 170 is detachably fixed to the front housing 121 or the rear housing 122.

In some embodiments, a portion of the components in the check module 170 may be partially accommodated in one or more injection components. In some embodiments, one or more check components may be partially or completely accommodated by one or more injection components, while other check components may not be accommodated. In some embodiments, a portion of the components in the check module 170 may partially accommodate one or more cartridge components. In some embodiments, one or more check components may be partially or completely accommodated by one or more cartridge components, while other cartridge components may not be accommodated.

Please refer to FIG. 3, which is an exploded view of the uncapping structure of the medical injection system disclosed in the embodiment of the present invention. The uncapping element of the uncapping structure 110 may include a cap 1110, a cap body 1120, and an uncapping cover 1130.

In some embodiments, the cap 1110 and the cap body 1120 may substantially form the outer shape of the pull-out cover structure. In some embodiments, the cap 1110 may be detachably coupled to at least one of the cap body 1120 and the pull-out cover 1130. In some embodiments, the cap 1110 may include a cap fixing structure including one or more cap fixing holes 1111, and the pull-out cover 1130 may include one or more opposing pull-out cover fixing buckles 1131 to detachably couple the cap 1110 and the pull-out cover 1130 together. In some embodiments, the cap 1110 may include a cap outer thread 1112, and the cap body 1120 may include a cap body inner thread 1121 to detachably couple the cap 1110 and the cap body 1120 together.

In some embodiments, the extraction cover 1130 may be detachably coupled to the cartridge module 140. In some embodiments, the extraction cover 1130 may include one or more needle cover removers 1132, which may be inwardly protruding or claw-like structures to hold the needle cover 1460 and the outer shell 1470 in the cartridge module 140 (described in subsequent FIG. 4 and FIG. 5), so that when the extraction cover structure 110 is removed, the needle cover 1460 and the outer shell 1470 can be removed to expose the needle body (e.g., a hollow needle). In this embodiment, the needle cover remover 1132 is a claw-like structure.

Please refer to FIG. 4, which is an exploded view of a cartridge module of a medical injection system disclosed in an embodiment of the present invention. The cartridge module 140 may include a guide rod 1410, a plunger rod spring 1420, a plunger rod 1430, a piston 1440, a medicine bottle 1450, a needle sleeve 1460, and a housing 1470, wherein a drug or a medical fluid to be injected may be included in the medicine bottle 1450. In some embodiments, a hollow needle may be coupled to the medicine bottle 1450 for piercing the patient's skin and administering the drug or medical fluid included in the cartridge module 140.

Please further refer to FIG. 5, which is a cross-sectional view of a cartridge module of a medical injection system disclosed in an embodiment of the present invention. In some embodiments, the guide rod 1410 may be detachably fixed to the fixing buckle 123. In some embodiments, the guide rod 1410 may be partially accommodated in the plunger rod 1430. In some embodiments, the guide rod 1410 may be arranged to pass through the plunger rod spring 1420 to be accommodated in the plunger rod 1430. In some embodiments, one of the two ends of the plunger rod spring 1420 may be detachably fixed to the fixing buckle 123 or the guide rod 1410. In some embodiments, the plunger rod spring 1420 may be completely or the other of its two ends may be partially accommodated in the plunger rod 1430 to drive the plunger rod 1430 to move toward the distal end 101 of the medical injection system 100.

In some embodiments, the piston 1440 may be movably disposed in the medicine bottle 1450, coupled to the plunger rod 1430 and pushed by the plunger rod 1430 to squeeze out the medicine or medical fluid in the medicine bottle 1450. In some embodiments, the medicine bottle may be detachably fixed to the compression sleeve 1630 (to be described in subsequent FIG. 13 and FIG. 14) in the injection completion feedback module 160, so that the user can arbitrarily replace medicine bottles of different specifications or containing different medicines. In some embodiments, the needle cover 1460 may be a needle body that detachably accommodates the medicine bottle 1450. In some embodiments, the housing 1470 may detachably accommodate the needle cover 1460. In some embodiments, the needle sheath 1460 and the outer shell 1470 can be held by the needle sheath remover 1132 of the sheath removal cover 1130, so that when the sheath removal structure 110 is removed from the front shell 121, the needle sheath 1460 and the outer shell 1470 can be removed to expose the needle body.

In some embodiments, the plunger rod 1430 may further include a plunger rod groove 1431, which may be pressed by an upper spring sheet 1312 (described in subsequent Figures 8 to 10) of a brake 1310 (described in subsequent Figures 6 and 8) in the injection module 130 to limit the movement of the plunger rod 1430. When the restriction is released, the plunger rod 1430 may be driven by the plunger rod spring 1420 to move toward the distal end 101 of the medical injection system 100 to push the piston 1440, so that the volume of the medicine or medical fluid in the medicine bottle 1450 is reduced, thereby allowing the medicine or medical fluid stored in the medicine bottle 1450 to be squeezed out through the needle.

Please refer to Figure 6, which is an exploded view of the injection module disclosed in the embodiment of the present invention. The injection module 130 may include a brake 1310, a starter rotor 1320, and a needle cover 1330.

Please refer to Figures 1 and 2. In some embodiments, the brake 1310 can be arranged at the proximal end 102 of the medical injection system 100, the needle cover 1330 can be arranged at the distal end 101 of the medical injection system 100, and the starter rotor 1320 can be arranged between the brake 1310 and the needle cover 1330. In some embodiments, the brake 1310, the starter rotor 1320, and the needle cover 1330 can each have a through structure with two ends communicating, so that other components in the medical injection system 100 can be accommodated or pass through them. In some embodiments, the starter rotor 1320 and the needle cover 1330 may each have a through structure with two ends connected, while the brake 1310 has a hollow structure for accommodating other components (such as the guide rod 1410, the plunger rod spring 1420, the plunger rod 1430, etc.).

In some embodiments, the brake 1310 is used to limit the movement of the trigger ring 1620 to control the generation of the injection completion feedback prompt. In some embodiments, the brake 1310 can be detachably fixed on the fixing buckle 123, and detachably fixed on the compression sleeve 1630 (to be described in the subsequent Figures 13 and 14) in the injection completion feedback module 160. In some embodiments, the brake 1310 is used to limit the movement of the plunger rod 1430 to control the triggering of the injection. In some embodiments, the brake 1310 can partially or completely accommodate one or more of the guide rod 1410, the plunger rod spring 1420, and the plunger rod 1430 in the cartridge module 140. In some embodiments, the brake 1310 can partially accommodate each of the guide rod 1410, the plunger rod spring 1420, and the plunger rod 1430 in the cartridge module 140. In some embodiments, the brake 1310 can be arranged to allow the plunger rod 1430 to partially or completely pass through its penetration structure or hollow structure. In some embodiments, the brake 1310 can be arranged to be partially or completely accommodated in the starting rotor 1320. In some embodiments, the brake 1310 is used to generate a feedback prompt when the syringe is started. In some embodiments, the brake 1310 can be arranged to partially or completely pass through the penetration structure of the starting rotor 1320.

In some embodiments, the starter rotor 1320 is used to control the limit of the stopper 1310 on the limit piston rod 1430. In some embodiments, the starter rotor 1320 can be arranged to allow the stopper 1310 to partially or completely pass through its penetration structure, so as to be elastically moved along the stopper 1310 in the vertical axis. In some embodiments, please refer to FIG. 2, the starter rotor 1320 can be movably contacted with one or more of the needle cover 1330, the impact ring 1510 of the injection start feedback module 150 (to be described in the subsequent FIG. 11) and the compression sleeve 1630 of the injection completion feedback module 160 (to be described in the subsequent FIG. 13). In some embodiments, the starter rotor 1320 may contact each of the needle cover 1330, the impact collar 1510 of the injection start feedback module 150, and the compression sleeve 1630 of the injection completion feedback module 160. In some embodiments, the starter rotor 1320 may contact each of the needle cover 1330 and the impact collar 1510 of the injection start feedback module 150.

In some embodiments, the needle cover 1330 is used to drive the starter rotor to rotate along the axial direction by displacement along the axial movement. In some embodiments, the needle cover 1330 can partially or completely accommodate one or more of the plunger rod 1430, the medicine bottle 1450, the needle cover 1460, and the outer shell 1470 in the cartridge module 140. In some embodiments, the needle cover 1330 can partially or completely accommodate the compression cover 1630 (to be described in the subsequent FIG. 13) of the injection completion feedback module 160. In some embodiments, the needle cover 1330 is used to prevent the needle from being exposed again after the injection is completed. In some embodiments, the needle cover 1330 can partially or completely accommodate one or more of the buffer pad 1710, the connection retainer 1720, the carrier 1730, and the safety spring 1740 (to be described in the subsequent FIG. 15) in the check module 170. In some embodiments, the needle cover 1330 can be arranged so that the aforementioned elements accommodated therein partially or completely pass through its through structure, so as to be able to move elastically in the vertical axis.

Please refer to FIG. 7, which is a three-dimensional diagram of the combination of the starting rotor and the needle cover disclosed in the embodiment of the present invention. In some embodiments, the starting rotor 1320 may include one or more rotating inclined surfaces 1321, 1321', and the rotating inclined surfaces 1321, 1321' may be arranged in the direction of the starting rotor 1320 close to the distal end 101 of the medical injection system 100. In some embodiments, the rotating inclined surfaces 1321, 1321' may be inclined surfaces arranged in a counterclockwise direction from the distal end 101 toward the proximal end 102. In some embodiments, the needle cover 1330 may further include one or more motion turning protrusions 1331, 1331', and the motion turning protrusions 1331, 1331' may contact the rotating inclined surfaces 1321, 1321' of the starter rotor 1320 to convert the displacement of the needle cover 1330 along the axial movement into the movement of the starter rotor 1320 along the axial rotation.

Please refer to Figures 1, 2 and 7 at the same time. In some embodiments, when the user holds the housing 120 and presses the cartridge module 140 against the patient's skin, the needle cover 1330 can move in the opposite direction of the patient's skin along the vertical axis (the proximal end 102 of the medical injection system 100), and the motion turning protrusions 1331, 1331' can push the rotating inclined surfaces 1321, 1321' to enable the starter rotor 1320 to rotate around the vertical axis.

Please refer to FIG. 7 and FIG. 8 at the same time. FIG. 8 is a three-dimensional diagram of the brake and the starter rotor disclosed in the embodiment of the present invention. In some embodiments, the brake 1310 may further include one or more rotating chute 1311, one or more upper springs 1312, and one or more lower springs 1313. In some embodiments, the brake 1310 is arranged in the order of upper springs 1312, rotating chute 1311, and lower springs 1313 from the proximal end 102 toward the distal end 101. In some embodiments, the rotating chute 1311 may be a groove arranged in a clockwise direction from the distal end 101 toward the proximal end 102. In some embodiments, the tilt angle of the rotating chute 1311 can be the same as the tilt angle of the rotating inclined surfaces 1321, 1321' of the starting rotor 1320, so that the starting rotor 1320 can rise along the rotating inclined surfaces 1321, 1321' when rotating (i.e., move toward the proximal end 102). In some embodiments, the length of the rotating chute 1311 can be arranged relative to the range of the needle cover 1330 rising. For example, when the needle cover 1330 rises by 10-15 mm (preferably 10-12 mm, more preferably 10.5-12 mm), the starting rotor 1320 can rotate along the rotating chute 1311 and rise by 6 mm. In some embodiments, the rotating slide groove 1311 may be a groove arranged in a clockwise direction from the distal end 101 toward the proximal end 102, and may be further connected to another groove arranged along the vertical axis.

In some embodiments, the upper spring piece 1312 of the brake 1310 may include one or more first blocks protruding inwardly to press the plunger rod groove 1431 of the plunger rod 1430. In some embodiments, the lower spring piece 1313 of the brake 1310 may include one or more second blocks protruding outwardly to resist the impact ring 1620 (to be described in the subsequent Figures 13 and 14). In some embodiments, the upper spring piece 1312 of the brake 1310 can be arranged along the inner diameter range of the brake 1310 when it is not subjected to external force (for example, not squeezed outward by the plunger rod 1430). In some embodiments, the lower spring sheet 1313 of the brake 1310 can be arranged along the inner diameter range of the brake 1310 when it is not subjected to external force (for example, it is not pushed outward by the plunger rod 1430). In some embodiments, the upper spring sheet 1312 of the brake 1310 can be partially or completely arranged outside the inner diameter range of the brake 1310 when it is not subjected to external force (for example, it is not squeezed inward by the starter rotor 1320). In some embodiments, the lower spring sheet 1313 of the brake 1310 can be partially or completely arranged within the inner diameter range of the brake 1310 when it is not subjected to external force (for example, it is not pushed outward by the plunger rod 1430).

In some embodiments, the starter rotor 1320 may further include one or more rotating protrusions 1322, 1322', and the rotating protrusions 1322, 1322' may be arranged on the surface of the through structure of the starter rotor 1320. In some embodiments, the brake 1310 may partially pass through the through structure of the starter rotor 1320, for example, the starter rotor 1320 accommodates the rotating slide groove 1311 and the upper spring sheet 1312 of the brake 1310, and when the starter rotor 1320 rotates around the vertical axis, the rotating protrusions 1322, 1322' therein may slide along the rotating slide groove 1311 of the brake 1310. In some embodiments, when the rotating protrusions 1322, 1322' of the starter rotor 1320 slide along the rotating slide groove 1311 of the brake 1310 to approach the end of the groove, they can be pressed by the needle sleeve spring 1520 (described in subsequent Figures 11 and 12) of the injection start feedback module 150 and move toward the other groove.

In some embodiments, alternatively, the brake 1310 may include one or more rotating protrusions, and the starter rotor 1320 may further include one or more corresponding rotating slide grooves, and when the starter rotor 1320 rotates around the vertical axis, the rotating slide grooves may slide along the rotating protrusions of the brake 1310.

Please refer to Figures 9 and 10 at the same time. Figure 9 is a three-dimensional diagram of the combination of the brake and the starter rotor disclosed in the embodiment of the present invention, and Figure 10 is a three-dimensional diagram of the combination of the brake and the plunger rod disclosed in the embodiment of the present invention. In some embodiments, the starter rotor 1320 may further include an inner annular surface arranged to squeeze the upper spring sheet inward, and include one or more accommodating spaces 1323 located on the inner annular surface, which may be an accommodating groove protruding outward from the inner annular surface relative to the inner diameter range of the starter rotor 1320, or may be an accommodating notch on the inner annular surface of the starter rotor 1320.

In some embodiments, the upper spring sheet 1312 of the brake 1310 is arranged along the inner diameter range of the brake 1310 when no external force is applied. When the starting rotor 1320 is not pushed by the needle cover 1330 and rotates around the vertical axis, the upper spring sheets 1312 and 1312' of the brake 1310 can be pressed by the inner annular surface of the starting rotor 1320, so that the driving force of the plunger rod spring 1420 on the plunger rod 1430 cannot push the upper spring sheets 1312 and 1312' outward. Therefore, the upper spring sheets 1312 and 1312' can press the plunger rod groove 1431 of the plunger rod 1430 to limit the movement of the plunger rod 1430. After the rotor 1320 is pushed by the needle cover 1330 and rotates around the vertical axis, the accommodation space 1323 of the starter rotor 1320 can be aligned with the upper springs 1312, 1312' of the brake 1310, so that the upper springs 1312, 1312' are no longer subjected to the external force of the inner annular surface squeezing inward. At this time, the driving force of the plunger rod 1430 on the plunger rod 1430 can loosen the upper springs 1312, 1312' outward, and remove the restriction of the upper spring 1312 on the movement of the plunger rod 1430, so that the plunger rod 1430 can move toward the distal end 101 of the medical injection system 100, so that the medicine or medical fluid can be squeezed out through the needle body.

In some embodiments, the upper spring sheet 1312 of the brake 1310 is arranged outside the inner diameter range of the brake 1310 when no external force is applied, and when the starter rotor 1320 is not yet pushed by the needle cover 1330 and rotates around the vertical axis, the upper spring sheets 1312, 1312' of the brake 1310 can be pressed by the inner annular surface of the starter rotor 1320, and the upper spring sheets 1312, 1312' can press the plunger rod groove 1431 of the plunger rod 1430 to limit the movement of the plunger rod 1430; and when the starter rotor 1320 is pushed by the needle cover 1330, the upper spring sheets 1312, 1312' of the brake 1310 can be pressed by the inner annular surface of the starter rotor 1320, and the upper spring sheets 1312, 1312' can press the plunger rod groove 1431 of the plunger rod 1430 to limit the movement of the plunger rod 1430. 0 pushes and rotates around the vertical axis, the accommodation space 1323 of the starter rotor 1320 can be aligned with the upper spring plates 1312, 1312' of the brake 1310, so that the upper spring plates 1312, 1312' are no longer subject to the external force from the inner annular surface squeezing inward and are loosened outward, thereby removing the restriction of the upper spring plate 1312 on the movement of the plunger rod 1430. At this time, the plunger rod 1430 can be driven by the plunger rod spring 1420 and move toward the distal end 101 of the medical injection system 100, so that the medicine or medical fluid can be squeezed out through the needle body.

In some embodiments, when the rotating protrusions 1322, 1322' rotate along the rotating slide 1311 and rise 4 mm, the tilt angle of the rotating protrusions 1322, 1322' can be 45 degrees, and the needle sleeve spring 1520 can drive the starter rotor 1320 to move toward the other groove, so that the starter rotor 1320 rotates to the right and the rotating protrusions 1322, 1322' present a tilt angle of 45 degrees, so that the upper spring 1312 of the brake 1310 is aligned with the accommodating space 1323 of the starter rotor 1320.

Therefore, in the medical injection system of the present invention, by means of the setting of the starting rotor 1320, the displacement of the needle cover 1330 along the axial movement can be converted to drive the starting rotor 1320 to rotate along the axial direction, and release the restriction of the brake 1310 on the plunger 1430 in the cartridge module 140 to trigger the injection.

Please refer to FIG. 11, which is an exploded view of the injection start feedback module disclosed in the embodiment of the present invention. The injection start feedback module 150 may include a trigger ring 1510, a brake 1310, a needle sleeve spring 1520, and a starter rotor 1320.

In some embodiments, please refer to FIG. 9 , the brake 1310 may further include a strike plate 1531 and a strike plate groove 1532. In some embodiments, the strike plate 1531 and the strike plate groove 1532 of the brake 1310 may be arranged near the proximal end 102 of the medical injection system 100 relative to the upper spring sheet 1312, the rotating slide 1311, and the lower spring sheet 1313. In some embodiments, the strike plate groove 1532 of the brake 1310 may be arranged aligned with the upper spring sheet 1312. In some embodiments, the strike plate groove 1532 of the brake 1310 may not be arranged aligned with the upper spring sheet 1312. In some embodiments, please refer to FIG. 2 , the impact ring 1510 may have a through structure so that other components in the medical injection system 100 can be accommodated or pass through it. In some embodiments, the brake 1310 can partially or completely pass through the through structure of the impact ring 1510. In some embodiments, the upper spring 1312, the rotating slide 1311, and the lower spring 1313 of the brake 1310 can partially or completely pass through the through structure of the impact ring 1510. In some embodiments, the impact ring 1510 can partially or completely accommodate the needle sleeve spring 1520 and the starter rotor 1320. In some embodiments, the starter rotor 1320 can be arranged to partially or completely pass through the needle sheath spring 1520 and be partially accommodated in the trigger ring 1510. In some embodiments, the needle sheath spring 1520 can drive the trigger ring 1510 to move toward the proximal end 102 of the medical injection system 100. In some embodiments, the needle sheath spring 1520 can drive the starter rotor 1320 to move toward the distal end 101 of the medical injection system 100.

Please refer to FIG. 12 , which is a side view and a top view of a striking ring disclosed in an embodiment of the present invention. The striking ring 1510 may further form a striking surface 1513 in the penetration structure relative to the striking plate 1531, and the striking surface 1513 may further include a striking surface protrusion 1511. In some embodiments, one of the striking surface protrusion 1511 and the striking surface 1513 of the striking ring 1510 may contact the striking plate 1531 of the brake 1310. In some embodiments, the striking surface protrusion 1511 of the striking ring 1510 may be arranged in alignment with the accommodating space 1323 of the starter rotor 1320. In some embodiments, the impact surface protrusion 1511 of the impact ring 1510 may not be aligned with the accommodation space 1323 of the starter rotor 1320. In one embodiment, the brake 1310 may partially or completely pass through the penetration structure of the impact ring 1510, and make the impact plate 1531 contact the impact surface protrusion 1511 or the impact surface 1513. In some embodiments, the back side 1513' of the impact surface 1513 of the impact ring 1510 may further include rotation blocks 1512, 1512'. In some embodiments, the starter rotor 1320 can contact the rotation block 1512, 1512' of the impact ring 1510, so that when rotating around the vertical axis, the impact ring 1510 can be pushed to rotate around the vertical axis. In some embodiments, one of the two ends of the needle sleeve spring 1520 can contact or be detachably fixed to the other side of the impact surface 1513 of the impact ring 1510.

In some embodiments, before the starter rotor 1320 is pushed by the needle cover 1330 to rotate around the vertical axis, the impact surface protrusion 1511 of the impact ring 1510 can contact and abut against the impact plate 1531 of the brake 1310, so that the impact surface 1513 of the impact ring 1510 and the impact plate 1531 of the brake 1310 are maintained without contact; and after the starter rotor 1320 is pushed by the needle cover 1330 to rotate around the vertical axis, the impact ring 1510 can continue to contact with the impact surface 1513 of the impact ring 1510. The belt is pushed to rotate around the vertical axis until the impact surface protrusion 1511 of the impact ring 1510 is aligned with the impact plate groove 1532 of the brake 1310 and accommodated therein. At this time, the needle sleeve spring 1520 can drive the impact ring 1510 to move toward the proximal end 102 of the medical injection system 100, so that the impact surface 1513 of the impact ring 1510 can collide with the impact plate 1531 of the brake 1310, and a sound and a collision feel are generated to remind the user.

In some embodiments, when the accommodation space 1323 of the starter rotor 1320 is aligned with the upper spring plates 1312, 1312' of the brake 1310 to trigger the movement of the plunger rod 1430 (i.e., when the injection starts), the impact surface protrusion 1511 of the impact ring 1510 can be aligned with the impact plate groove 1532 of the brake 1310 to trigger a reminder sound and an impact feel, which serves as an injection start feedback mechanism to remind the user that the injection has been triggered. For example, please refer to FIG. 9 and FIG. 12 simultaneously. When the starter rotor 1320 and the impact ring 1510 rotate counterclockwise around the vertical axis, the impact plate groove 1532 of the brake 1310 can be arranged at a position aligned with the upper spring plate 1312, and the part of the starter rotor 1320 that contacts the rotating block 1512, 1512' is arranged on the left side relative to the accommodating space 1323, and the rotating block 1512, 1512' is arranged on the left side relative to the impact surface protrusion 1511. However, in some embodiments, the strike plate groove 1532 of the brake 1310 may not be aligned with the upper spring sheet 1312, and the strike surface protrusion 1511 of the impact ring 1510 may be aligned or not aligned with the accommodation space 1323 of the starter rotor 1320, as long as the strike surface protrusion 1511 of the impact ring 1510 can be aligned with the strike plate groove 1532 of the brake 1310 at the start of injection.

Therefore, by means of the setting of the brake 1310 and the impact ring 1510, and in combination with the setting position of the starter rotor 1320, an injection start feedback prompt can be generated when the injection starts.

Please refer to FIG. 13 , which is an exploded view of the injection completion feedback module disclosed in the embodiment of the present invention. The injection completion feedback module 160 may include a brake 1310 , a trigger ring spring 1610 , a trigger ring 1620 , and a compression ring 1630 .

In some embodiments, the impact ring 1620 and the compression sleeve ring 1630 may have a penetration structure, respectively, so that other components of the medical injection system 100 can be accommodated or pass through them. In some embodiments, the brake 1310 may be arranged to partially or completely pass through the penetration structure of the impact ring 1620. In some embodiments, the brake 1310 may be arranged to completely pass through the impact ring spring 1610 and partially or completely pass through the penetration structure of the impact ring 1620. In some embodiments, the impact ring spring 1610 can drive the impact ring 1620 to move toward the distal end 101 of the medical injection system 100. In some embodiments, please refer to FIG. 8 , the lower spring 1313 of the brake 1310 can completely pass through the penetration structure of the impact ring 1620 to resist the impact ring 1620 to limit its movement when it is pushed outward by the plunger rod 1430. In some embodiments, the penetration structure of the compression ring 1630 can be at least partially or completely penetrated by the plunger rod 1430.

Please refer to FIG. 14, which is a three-dimensional diagram of the compression ring disclosed in the embodiment of the present invention. The compression ring 1630 may further include a fixing structure 1631, an impact surface 1632, one or more through holes 1633, and a compression structure 1634.

In some embodiments, please refer to FIG. 1 and FIG. 2 at the same time, the fixing structure 1631 can be coupled to the fixing hole 1221 of the rear shell 122 to detachably fix the compression collar 1630 to the shell 120; compared with the need to design a fixing spring when simply using a spring, the fixing structure 1631 can be more conducive to the manufacture and assembly of the medical injection system. In some embodiments, the impact surface 1632 can be formed in the through structure of the compression collar 1630 relative to the impact ring 1620. In some embodiments, the impact surface 1632 can be formed by any plane that can produce a sound, such as an annular surface extending inward from the rear shell 122. In some embodiments, please refer to FIG. 2 and FIG. 7 at the same time, one or more through holes 1633 may be formed on the impact surface 1632 so that the movement turning protrusions 1331, 1331' of the needle cover 1330 can pass through and contact the starter rotor 1320. In some embodiments, the compression structure 1634 may be a removable fixing of the medicine bottle 1450, so as to provide a force to fix the medicine bottle 1450 downward when the needle body cartridge module 140 is pressed against the patient's skin. In some embodiments, the compression structure 1634 may allow tolerances at the rear end of the medicine bottle 1450 to accommodate different types of medicine bottles 1450.

In some embodiments, please refer to FIG. 10 , the lower spring sheet 1313 of the brake 1310 is arranged along the inner diameter range of the brake 1310 when no external force is applied, and before the plunger rod 1430 moves toward the distal end 101 of the medical injection system 100 or has not yet completely separated from the lower spring sheet 1313 of the brake 1310 , the lower spring sheet 1313 of the brake 1310 can be pushed outward by the plunger rod 1430, so that the driving force of the impact ring spring 1610 on the impact ring 1620 cannot compress the lower spring sheet 1313 inward, so the lower spring sheet 1313 can resist the impact ring 1620 to limit the movement of the impact ring 1620; When the lower spring 1313 of the brake 1310 is completely disengaged from the lower spring 1313 (i.e., when the injection is completed), the lower spring 1313 of the brake 1310 is no longer subjected to the external force pushing it outward. At this time, the driving force of the trigger ring spring 1610 on the trigger ring 1620 can compress the lower spring 1313 inward, and remove the restriction of the lower spring 1313 on the movement of the trigger ring 1620, so that the trigger ring 1620 can move toward the distal end 101 of the medical injection system 100, and the trigger ring 1620 can collide with the impact surface 1632 of the compression sleeve 1630, thereby making a sound and generating a collision feel to remind the user that the injection is completed.

In some embodiments, the lower spring sheet 1313 of the brake 1310 is arranged within the inner diameter range of the brake 1310 when no external force is applied, and before the plunger rod 1430 moves toward the distal end 101 of the medical injection system 100 or has not yet completely separated from the lower spring sheet 1313 of the brake 1310, the lower spring sheet 1313 of the brake 1310 can be pushed outward by the plunger rod 1430, and the lower spring sheet 1313 can abut against the impact ring 1620 to limit the movement of the impact ring 1620; and when the plunger rod 1430 moves to completely separate from the brake 1 When the lower spring piece 1313 of the brake 1310 is released (i.e. when the injection is completed), the lower spring piece 1313 of the brake 1310 is no longer subject to the external force pushing it outward and is loosened inward, thereby removing the restriction of the lower spring piece 1313 on the movement of the impact ring 1620. At this time, the impact ring 1620 can be driven by the impact ring spring 1610 to move toward the distal end 101 of the medical injection system 100, so that the impact ring 1620 can collide with the impact surface 1632 of the compression sleeve 1630, and a sound and a collision feel are generated to remind the user that the injection is completed.

Therefore, by setting the brake 1310, when the injection is completed, the plunger 1430 will no longer limit the brake 1310 from contacting the impact ring 1620 to the compression ring 1630, and generate a feedback prompt that the injection is completed.

Please refer to Figure 15, which is an exploded view of the check module disclosed in the embodiment of the present invention. The check module 170 may include a front housing 121, a buffer pad 1710, a connecting retainer 1720, a carrier 1730, a safety spring 1740, and a needle cover 1330.

In some embodiments, the front housing 121 may be arranged to partially or completely accommodate one or more of the buffer 1710, the link retainer 1720, the carrier 1730, the safety spring 1740, and the needle cover 1330. In some embodiments, the needle cover 1330 may be arranged to partially or completely accommodate one or more of the buffer 1710, the link retainer 1720, the carrier 1730, and the safety spring 1740.

In some embodiments, one or more of the buffer 1710, the link retainer 1720, the carrier 1730, and the safety spring 1740 may partially or completely pass through the through structure of the needle cover 1330. In some embodiments, the buffer 1710, the link retainer 1720, and the carrier 1730 may each have a through structure so that other components of the medical injection system 100 can be accommodated or pass through them. In some embodiments, one or more of the plunger rod 1430, the vial 1450, the needle sleeve 1460, and the housing 1470 in the cartridge module 140 may partially or completely pass through the penetrating structure of the buffer 1710, the link retainer 1720, and the carrier 1730.

In some embodiments, one of the two ends of the safety spring 1740 can contact the needle cover 1330 to drive the needle cover 1330 to move toward the distal end 101 of the medical injection system 100. In some embodiments, the other of the two ends of the safety spring 1740 can contact the carrier 1730.

In some embodiments, the buffer pad 1710 may be detachably fixed to the connection retainer 1720. In some embodiments, the buffer pad 1710 may further include one or more fixing protrusions 1711, and the connection retainer 1720 may further include one or more fixing holes 1721 opposite to each other, wherein the fixing protrusion 1711 may be detachably coupled to the fixing hole 1721.

In some embodiments, the link retainer 1720 may be removably fixed to the carrier 1730. In some embodiments, the link retainer 1720 may further include one or more fixing protrusions 1722, and the carrier 1730 may further include one or more fixing holes 1732, wherein the fixing protrusions 1722 may be removably coupled to the fixing holes 1732.

In some embodiments, the carrier 1730 may be detachably fixed to the front housing 121. In some embodiments, the carrier 1730 may further include one or more fixing protrusions 1731, and the front housing 121 may further include one or more fixing holes 1211 opposite thereto, wherein the fixing protrusions 1731 may be detachably coupled to the fixing holes 1211. In some embodiments, the needle cover 1330 may have a side opening, so that the fixing protrusions 1731 of the carrier 1730 may protrude outward through the side opening, so that when the needle cover 1330 moves toward the distal end 101 of the medical injection system 100, the movement range of the needle cover 1330 may be limited so as not to be separated from the housing 120.

In some embodiments, please refer to FIG. 2 , the carrier 1730 may be detachably coupled to the needle cover 1330. In some embodiments, the carrier 1730 may further include one or more spring sheets 1733, and the needle cover 1330 may further include one or more fixing holes 1332, 1332', wherein the spring sheets 1733 may be detachably coupled to the fixing holes 1332, 1332'. In some embodiments, the spring sheets 1733 of the carrier 1730 may be spring sheets arranged gradually away from the inner diameter of the carrier 1730 from the distal end 101 to the proximal end 102. In some embodiments, the fixing holes 1332, 1332' of the needle cover 1330 can be elongated holes arranged along the vertical axis, and the elastic sheet 1733 of the carrier 1730 can pass through the elongated hole and abut against the position of the elongated hole near the proximal end 102 of the medical injection system 100 to limit the movement direction of the needle cover 1330 before the injection starts, that is, it cannot move toward the distal end 101 of the medical injection system 100.

In some embodiments, the carrier 1730 may further include one or more fixing plates (not shown in the figure), which may be an inverted groove that can accommodate the elastic plate 1733 of the carrier 1730. In some embodiments, the needle cover 1330 may further include a buckle 1334, which may be arranged near the distal end 101 of the medical injection system 100. In some embodiments, the front shell 121 may further include an annular protrusion 1212 relative to the buckle 1334, which may be arranged on the inner wall near the distal end 101 of the medical injection system 100.

In some embodiments, the spring sheet 1733 of the carrier 1730 can partially or completely pass through the fixing holes 1332, 1332' of the needle cover 1330 when not subjected to external force (for example, not compressed inward by the needle cover 1330 or the fixing sheet). In some embodiments, when the user holds the housing 120 and presses the cartridge module 140 against the patient's skin, the needle cover 1330 moves toward the proximal end 102 of the medical injection system 100, and the elastic sheet 1733 of the carrier 1730 is pressed inward and accommodated in the fixing plate, so that the elastic sheet 1733 of the carrier 1730 is subjected to the inward external force of the fixing plate and cannot be expanded outward; and when the injection is completed, the user removes the cartridge module 140 from the patient's skin, because it is no longer restricted by the elastic sheet 1733, and the injection is safe. The spring 1740 can drive the needle cover 1330 to move toward the distal end 101 of the medical injection system 100 to re-accommodate the needle of the medicine bottle 1450. At this time, the buckle 1334 of the needle cover 1330 can be lower than the annular protrusion 1212 of the front shell 121, so that the position of the needle cover 1330 is closer to the distal end 101 of the medical injection system 100 than before the injection. Since the buckle 1334 is restricted by the annular protrusion 1212, the needle cover 1330 cannot move upward again, so that the needle cannot be exposed again, so as to improve the safety of use.

Therefore, when the user intuitively presses the needle of the injection system 100 of the present invention against the skin, the injection can be automatically triggered and prompts can be issued when the injection starts and when the injection is completed, so as to improve the accuracy and convenience of self-administration of medical fluids or drugs.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present invention, not to limit them. Although the present invention is described in detail with reference to the above-mentioned embodiments, a person with ordinary knowledge in the technical field to which the present invention belongs should understand that the technical solutions described in the above-mentioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalent ones. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

100:Medical injection system

123: Fixed button

130: Injection module

140: Cartridge module

150: Injection start feedback module

160: Injection completion feedback module

170: Check module

Claims (10)

A medical injection system, comprising: an injection start feedback module, further comprising: an actuator, comprising a strike plate and one or more strike plate grooves located in the strike plate; and a strike ring, surrounding to form a through structure for accommodating the actuator, and the through structure of the strike ring further comprising: an impact surface, configured to correspond to the strike plate of the actuator; and one or more impact surface protrusions, configured to limit the impact surface from contacting the strike plate; wherein when the strike ring rotates so that the one or more impact surface protrusions are accommodated in the one or more strike plate grooves, the impact surface contacts the strike plate to generate an injection start feedback prompt. The medical injection system as described in claim 1 further comprises: An injection module, further comprising: A starting rotor, one end of which contacts the impact ring to drive the impact ring to rotate when the starting rotor rotates, and the starting rotor surrounds to form a through structure for accommodating the brake, wherein the through structure of the starting rotor further comprises: An inner annular surface; and One or more accommodating spaces, arranged on the inner annular surface to protrude outward; The brake further comprises: One or more upper spring plates, and the inner annular surface squeezes the one or more upper spring plates inward; When the starting rotor rotates to cause the one or more accommodating spaces to rotate to the one or more upper spring plates of the brake, the one or more impact surface protrusions simultaneously rotate to the one or more impact plate grooves of the brake. A medical injection system as described in claim 2, wherein the impact ring further includes one or more rotation blocks configured to contact the one end of the starting rotor. A medical injection system as described in claim 3, wherein the other end of the starter rotor includes one or more rotating bevels; and the injection module further includes: a needle cover, which includes one or more movement turning protrusions contacting the one or more rotating bevels, and when the needle cover moves toward an axial direction of the medical injection system, the one or more movement turning protrusions push the one or more rotating bevels to make the starter rotor rotate around the axial direction and drive the impact ring to rotate. The medical injection system as described in claim 4 further comprises: A cartridge module, further comprising: A plunger rod, which comprises a plunger rod groove relative to the one or more upper springs, and the plunger rod is configured to be accommodated in the brake or the needle cover and move toward the other axial direction of the medical injection system; Wherein the brake also comprises one or more rotating slide grooves, and when the one or more upper springs are squeezed inwardly and abut against the plunger rod groove, the brake limits the plunger rod from moving toward the other axial direction; Wherein the penetration structure of the starter rotor also comprises: One or more rotating protrusions are located on the inner annular curved surface, and are used to move along the one or more rotating slide grooves to rotate the starter rotor, and when the one or more accommodating spaces rotate to the one or more upper springs, the one or more upper springs are no longer squeezed inward by the inner annular curved surface. A medical injection system as described in claim 5, wherein when the plunger rod moves toward the other axial direction of the medical injection system, the impact surface of the impact ring contacts the impact plate of the brake to generate the injection start feedback prompt. The medical injection system as described in claim 5 further includes a housing to accommodate the injection module, wherein the brake is fixed to the housing, and when the cartridge module is pressed against the skin of a patient, the needle cover moves toward the axis of the medical injection system, and the one or more motion turning protrusions push the one or more rotating ramps to cause the starting rotor to rotate around the axis. The medical injection system as described in claim 5 further comprises an injection completion feedback module, wherein the injection completion feedback module comprises: a touch ring, surrounding to form a through structure for accommodating the brake; and a compression sleeve ring, surrounding to form a through structure for accommodating the plunger rod, and forming an impact surface relative to the touch ring in the through structure of the compression sleeve ring, wherein when the touch ring contacts the impact surface of the compression sleeve ring, an injection completion feedback prompt is generated. The medical injection system as described in claim 5 further includes a cap-pulling structure, wherein the cap-pulling structure includes: A cap, which surrounds to form a structure for accommodating at least a portion of the cartridge module; and A sleeve-pulling cover, which is arranged to be coupled to the cap, and the sleeve-pulling cover also includes a needle sleeve remover, when the cap-pulling structure is disassembled from the medical injection system, the needle sleeve remover removes a needle sleeve to expose a needle body. The medical injection system as described in claim 5 further includes a check module, wherein the check module includes: A front shell, surrounding to form a structure for accommodating at least a portion of the cartridge module and the injection module, and including one or more fixing holes; and A carrier is accommodated in the front shell and includes one or more fixing protrusions opposite to the one or more fixing holes of the front shell to fix the carrier to the front shell, and the carrier also includes one or more elastic sheets coupled to the needle cover to limit the needle cover from moving in the other axial direction of the medical injection system, wherein the carrier also includes one or more fixing sheets relative to the one or more elastic sheets, when the needle cover moves in the axial direction of the medical injection system, the one or more elastic sheets are pressed and accommodated in the one or more fixing sheets, and no longer limit the movement of the needle cover.

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