Injection base, injection support and injector assembly
Through the combined structure of the injection base, injection stent and syringe, the design of limiting parts, guides and snails is solved, and the problem of needle exposure after the syringe is completed is realized, and the safe placement of the syringe and the medical staff are realized. Safety guarantee.
Patent Information
- Application Number
- CN202420836280.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-12-25
- Filing Date
- 2024-04-22
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-04-22
Smart Images
Figure CN222341725U_ABST
Abstract
Description
Technical Field
[0001] The utility model provides an injection base, an injection support and a syringe assembly, and particularly relates to an injection base, an injection support and a syringe assembly which can accommodate a syringe and shield an injection needle after the contents of the syringe are used up. Background Art
[0002] Medical safety has long been a major issue that the Chinese people attach great importance to. Generally speaking, when patients, injured people or elderly people need to inject drugs or undergo blood screening, medical staff will use syringes to inject or draw blood from patients. However, if the needle of the above-mentioned used syringe is exposed, it is not only easy to stab medical staff, but also likely to cause blood infection and the risk of transmitting serious diseases. Utility Model Content
[0003] The inventor then devoted all his efforts to research and developed an injection base, injection bracket and syringe assembly that can accommodate the syringe after the contents of the syringe are used up and at the same time shield the syringe needle, in order to achieve the effect of facilitating use and improving the safety of medical personnel.
[0004] The utility model provides an injection base, comprising a base body, a push-up member and at least one latch. The base body comprises a limiting portion and is formed with a limiting groove and a bracket channel, the limiting groove is arranged adjacent to the limiting portion and extends along a feeding direction, the bracket channel is connected to the limiting groove and penetrates the base body along the feeding direction; the push-up member is arranged at one end of the base body in the feeding direction and is formed with a base opening and a limiting member embedding groove, the base opening is connected to the bracket channel, the limiting member embedding groove is arranged at the outer side of the base opening in a radial direction of the base body and is adjacent to the limiting groove; the latch is arranged on the push-up member and protrudes relative to the push-up member, and the latch is suitable for deflecting or pivoting relative to the push-up member.
[0005] In one embodiment, a radial width of a portion of the limiting member embedded groove away from the limiting groove is greater than a radial width of another portion of the limiting member embedded groove adjacent to the limiting groove.
[0006] In one embodiment, the injection base further includes a guide portion, which is disposed on the base body and forms a guide groove, and the guide groove extends along the feeding direction and is connected to the support channel.
[0007] In one embodiment, the abutting member is further formed with a guide member embedding groove, which is arranged outside the base opening in the radial direction, and the guide groove is aligned with a part of the guide member embedding groove along the feeding direction.
[0008] In one embodiment, the radial width of a portion of the guide member embedded groove corresponding to the guide groove is smaller than the radial width of another portion of the guide member embedded groove not corresponding to the guide groove.
[0009] In one embodiment, the base body is further formed with a latching opening, and the latching opening passes through a portion of the guiding portion.
[0010] In one embodiment, the limiting portion and the guiding portion are arranged at intervals in a circumferential direction of the base body.
[0011] In one embodiment, the injection base further includes a retaining member, wherein the retaining member is disposed on the abutting member and adjacent to the base opening.
[0012] In one embodiment, there are a plurality of the above-mentioned latching members, each of which includes a latching member sliding portion, and a distance between each latching member sliding portion and a central axis of the support channel in a radial direction of the base body gradually changes along the feeding direction.
[0013] In one embodiment, the latch member includes at least two latch member sliding parts, the injection base is suitable for being assembled with an injection bracket, and the gap between these latch member sliding parts is substantially equal to the size of a wing member of the injection bracket.
[0014] In one embodiment, the injection base is suitable for being assembled with a syringe, the syringe includes an operating portion, and the radial distance between the periphery of the operating portion and a central axis of the support channel is greater than the radial distance between the latch and the central axis.
[0015] In addition, the utility model also provides an injection bracket, including a bracket body, a limiter, a carrier, a guide and at least one wing. The bracket body is formed with a syringe channel, which extends along a feeding direction and passes through the bracket body; the limiter is arranged on the bracket body and protrudes relative to the side wall of the bracket body; the carrier is arranged on the bracket body and formed with a bracket opening, the bracket opening is connected to the syringe channel, and the limiter and the carrier are respectively arranged at the front end and the rear end of the bracket body in the feeding direction; the guide is arranged on the bracket body and protrudes relative to the side wall of the bracket body, and the guide and the limiter are arranged at intervals in a circumferential direction of the bracket body; the wing is arranged on the carrier and protrudes relative to the carrier, and the wing is suitable for deflecting or pivoting relative to the carrier.
[0016] In one embodiment, one end portion of the guide member is separated from a side wall of the bracket body.
[0017] In one embodiment, the injection bracket further includes a fastener, wherein the fastener is disposed adjacent to the stopper, and a distance between a surface of the fastener and a central axis of the injector channel in a radial direction of the bracket body is substantially equal to an inner diameter of the injector channel.
[0018] In one embodiment, the bracket body includes an elastic member abutting portion, which is disposed at the front end of the bracket body in the feeding direction and is suitable for abutting against an elastic member.
[0019] In one embodiment, the bracket body is further formed with a syringe observation groove, which extends along the feeding direction and passes through the side wall of the bracket body.
[0020] In one embodiment, there are a plurality of wing members, each of which includes a wing sliding portion, and a distance between each wing sliding portion and a central axis of the syringe channel in a radial direction of the support body gradually changes along the feeding direction.
[0021] In one embodiment, there are a plurality of the wing members, and the wing members are arranged at equal intervals in the circumferential direction.
[0022] In one embodiment, the injection bracket is suitable for being assembled with a syringe, the syringe includes a body, and the radial distance between the periphery of the body and a central axis of the syringe channel in the bracket body is greater than the radial distance between the wing and the central axis.
[0023] In addition, the utility model also provides a syringe assembly, which is suitable for being assembled with a syringe and includes an injection base mentioned above, an injection bracket mentioned above and an elastic member, wherein the injection bracket is configured in the bracket channel, and the syringe channel is suitable for accommodating the syringe; the elastic member is configured between the injection base and the injection bracket.
[0024] Thereby, the syringe assembly of the utility model can respectively accommodate the injection bracket and the syringe through the injection base and the injection bracket, and through the sequential engagement of the limiting member and the limiting member embedding groove and the limiting groove, the assembled injection base and the injection bracket will not be separated from each other. Therefore, the used syringe can be accommodated in the injection base, while shielding the needle of the syringe, thereby achieving the effect of convenient use and improving the safety of medical personnel.
[0025] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a three-dimensional schematic diagram of an embodiment of a syringe assembly of the utility model and a syringe assembly.
[0027] Figure 2 for Figure 1 Exploded diagram of components.
[0028] Figure 3 for Figure 1 Schematic diagram of the front view of the injection base in .
[0029] Figure 4 for Figure 1 Schematic diagram of the top view of the injection base.
[0030] Figure 5 for Figure 4 Schematic cross-sectional view along section XX.
[0031] Figure 6 for Figure 1 Schematic diagram of the front view of the injection bracket in FIG.
[0032] Figure 7 for Figure 1 Schematic diagram of the top view of the injection bracket.
[0033] Figure 8 for Figure 7 Schematic cross-sectional view along section YY.
[0034] Fig. 9 for Figure 1 A front view schematic diagram of the injection bracket and the syringe being assembled together.
[0035] Fig.10 It is a three-dimensional schematic diagram of assembling an injection bracket and an injection base equipped with a syringe.
[0036] Fig.11 for Fig.10 Schematic top view of .
[0037] Fig.12 for Fig.10 Schematic diagram of the rotation of the injection bracket relative to the injection base.
[0038] Fig.13 for Fig.12 Schematic diagram of the front view of the completed assembly of the injection bracket and the injection base.
[0039] Fig.14 for Fig.13 A front view schematic diagram of the injection bracket and the injection base when the contents of the syringe are used up.
[0040] Fig.15 for Fig.14 Schematic front view of the injection support moving relative to the injection base.
[0041] Fig.16 It is a three-dimensional schematic diagram of another embodiment of the syringe assembly of the utility model and a syringe assembly.
[0042] Fig.17 It is a three-dimensional schematic diagram of another embodiment of the injection bracket of the syringe assembly of the utility model.
[0043] Fig.18 for Fig.17 Schematic front view of .
[0044] Reference numerals
[0045] 1, 1': Syringe assembly
[0046] 100, 100': Injection base
[0047] 110: Base body
[0048] 112: Limiting part
[0049] 116: Bracket channel
[0050] 117: Limiting slot
[0051] 118: Clamp port
[0052] 120: Stop piece
[0053] 122: Holding piece
[0054] 126: Base opening
[0055] 127: Limiting piece embedded in the groove
[0056] 128: Guide piece embedded in the groove
[0057] 130: latch
[0058] 130a: first latching member
[0059] 130b: Second latching member
[0060] 132: Sliding connection of the latch
[0061] 132a: first latch sliding portion
[0062] 132b: Second latch sliding portion
[0063] 132c: Third latch sliding portion
[0064] 132d: Fourth latch sliding portion
[0065] 134: Clamp arm
[0066] 134a: First latch arm
[0067] 134b: Second latch arm
[0068] 140, 140': Guide section
[0069] 146: Guide groove
[0070] 200, 200': Injection stent
[0071] 210: Bracket body
[0072] 212: Elastic member against top member
[0073] 216: Syringe channel
[0074] 217: Syringe observation slot
[0075] 220: Limiting parts
[0076] 230: Bearing
[0077] 232a: First fastener
[0078] 232b: Second fastener
[0079] 236: Bracket opening
[0080] 240, 240': Wings
[0081] 240a, 240a': first wing member
[0082] 240b, 240b': second wing member
[0083] 242: Wing sliding joint
[0084] 244: Wing protection part
[0085] 250: Guide
[0086] 252: End
[0087] 260: Tilt piece
[0088] 300: Elastic parts
[0089] 2: Syringe
[0090] 22: Body
[0091] 24: Operation Department
[0092] 26: Needle
[0093] A, B: Center axis
[0094] F: Feed direction
[0095] XX, YY: Section DETAILED DESCRIPTION
[0096] The above and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. It is worth mentioning that the directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are for illustration, not for limitation of the present invention. In addition, in the following embodiments, the same or similar components will be marked with the same or similar numbers.
[0097] Please refer to Figure 1 and Figure 2 ,in Figure 1 is a three-dimensional schematic diagram of an embodiment of a syringe assembly of the utility model and a syringe assembly. Figure 2 for Figure 1 Schematic diagram of exploded components. The syringe assembly 1 of the present embodiment is suitable for cooperating with a syringe 2. The syringe 2 may be a syringe and include a body 22, an operating portion 24 and a needle 26, wherein the body 22 is, for example, the barrel of the syringe and is suitable for accommodating an injection or a biological sample collected from the body of the injection object; the operating portion 24 is, for example, the top cover of a piston rod that can push the contents of the body 22 and is movably connected to the body 22; and the needle 26 is, for example, the needle of the syringe used to pierce the injection object and is fixed to the body 22. On the other hand, the syringe assembly 1 may include an injection base 100, an injection support 200 and an elastic member 300, wherein the injection support 200 is disposed in the injection base 100 and is suitable for accommodating a portion of the syringe 2, and the elastic member 300 may be a linear spring and is disposed between the injection base 100 and the injection support 200.
[0098] Please refer to Figures 3 to 5 ,in Figure 3 for Figure 1 Schematic diagram of the front view of the injection base in FIG. Figure 4 for Figure 1 A top view of the injection base in FIG. Figure 5 for Figure 4 Schematic cross-sectional view along section XX. In detail, the injection base 100 may be a substantially hollow tubular structure and includes a base body 110, a push member 120 and at least one latch member 130, wherein the base body 110 includes a limiting portion 112 and is formed with a support channel 116 and a limiting groove 117, the support channel 116 extends along a feed direction F and passes through the base body 110, and the limiting groove 117 is connected to the support channel 116, is arranged adjacent to the limiting portion 112 and extends along the feed direction F at the same time. It is worth mentioning that in the present embodiment, the base body 110 is formed with a total of two limiting grooves 117, and these limiting grooves 117 are Figure 3 overlap with each other in the front view schematic diagram, and as Figure 5As shown, they are respectively arranged on opposite sides of the base body 110 in a circumferential direction.
[0099] In addition, the push-up member 120 is disposed at one end of the base body 110 in the feeding direction F and is formed with a base opening 126, and the base opening 126 is connected to the bracket channel 116. In this embodiment, the push-up member 120 is disposed at the rear end of the base body 110 in the feeding direction F as an example, but the utility model is not limited to this. On the other hand, the latching member 130 is disposed on the push-up member 120 and protrudes relative to the push-up member 120. For example, there are two latching members 130 and they are symmetrically disposed relative to the push-up member 120. For the convenience of explanation, the following will be Figure 4 The latching member 130 on the left is referred to as the first latching member 130a. Figure 4 The latching member 130 on the right is called the second latching member 130b, and the first latching member 130a and the second latching member 130b are respectively adapted to bend or pivot relative to the abutting member 120. With such a configuration, when the injection support 200 is disposed in the injection base 100, the injection base 100 can limit the front and rear ends of the injection support 200 in the feeding direction F respectively through the abutting member 120 and the latching member 130, thereby fixing the injection support 200 at a specific position of the injection base 100.
[0100] like Figure 4 and Figure 5 As shown, the stopper 120 may also be formed with a stopper inserting groove 127, wherein the stopper inserting groove 127 is disposed on the outer side of the base opening 126 in a radial direction of the base body 110 and adjacent to the stopper groove 117. In this embodiment, the number is, for example, two, and corresponds to Figure 5 The limiting grooves 117 on the left and right sides of the middle. In some possible embodiments, the groove width of the limiting member embedded groove 127 is gradually changed in the circumferential direction of the base body 110, that is, when the limiting member embedded groove 127 gradually approaches the limiting groove 117 along the circumferential direction, the groove width of the limiting member embedded groove 127 gradually shrinks, and there is no radial step difference at the junction of the two. In other words, the groove width of a part of the limiting member embedded groove 127 away from the limiting groove 117 in the radial direction is greater than the groove width of another part of the limiting member embedded groove 127 adjacent to the limiting groove 117 in the radial direction. Thereby, the compliance of the injection bracket 200 and the injection base 100 when they are installed with each other can be improved.
[0101] In addition, the injection base 100 may further include a guide portion 140, wherein the guide portion 140 is disposed on the base body 110 and is formed with a guide groove 146, which in this embodiment is, for example, two rib-shaped structures protruding outward relative to the side wall of the base body 110, and are respectively spaced apart from the limiting portion 112 in the circumferential direction of the base body 110. On the other hand, the guide groove 146 extends along the feeding direction F and communicates with the bracket channel 116, so as to guide the injection bracket 200 to be installed along the feeding direction F, and improve the stability of the injection bracket 200 and the injection base 100 in the circumferential direction when the installation is completed.
[0102] Similar to the stopper embedded groove 117, the push member 120 may also be formed with a guide embedded groove 128. In this embodiment, the number is, for example, two and is arranged on the outer side of the base opening 126 in the radial direction, and the guide groove 146 is aligned with a portion of the guide embedded groove 128 along the feed direction F. In some possible embodiments, as the guide embedded groove 128 gradually approaches the guide groove 146 along the circumferential direction, the radial groove width of the guide embedded groove 128 gradually decreases. In other words, the radial width of the portion of the guide embedded groove 128 aligned with the guide groove 146 is smaller than the radial width of another portion of the guide embedded groove 128 not aligned with the guide groove 146. With such a configuration, when the injection bracket 200 is placed in the injection base 100 and rotated relative to the injection base 100, it is beneficial for the guide structure of the injection bracket 200 to be screwed into the guide groove 146 and slide along the guide groove 146.
[0103] Preferably, the base body 110 is further formed with a latching opening 118, wherein the number of the latching openings 118 is, for example, two and each penetrates a portion of the guide portion 140, that is, the guide portion 140 and the guide groove 146 are cut off by the latching opening 118 in the feeding direction F. In this way, the injection bracket 200 can still retain the elasticity required for latching with the injection base 100 when the syringe 2 is not used for a long time, which will be described in detail below.
[0104] In addition, the injection base 100 may further include a retaining member 122 , wherein the retaining member 122 is, for example, a protrusion extending along the feeding direction F, disposed on the abutting member 120 and adjacent to the base opening 126 , for further fixing the injection support in the radial direction to avoid unexpected shaking.
[0105] On the other hand, the first latching member 130a and the second latching member 130b of this embodiment respectively include two latching member sliding portions 132 and two latching arms 134, and each latching member sliding portion 132 is connected to the abutting member 120 through a corresponding latching arm 134. Figure 4The latching member sliding portion 132 of the first latching member 130a is sequentially referred to as the first latching member sliding portion 132a and the second latching member sliding portion 132b from top to bottom. Figure 4 The latch sliding portion 132 of the second latch 130b is sequentially called the third latch sliding portion 132c and the fourth latch sliding portion 132d from top to bottom, and the first latch sliding portion 132a and the second latch sliding portion 132b are connected to the abutting member 120 through the first latch arm 134a and the second latch arm 134b respectively. Figure 3 and Figure 4 As shown, the distance between each latch sliding portion 132 and a central axis A of the support channel 116 in the radial direction of the base body 110 gradually changes along the feeding direction F. Specifically, along the feeding direction F, the distance between the latch sliding portion 132 and the central axis A shows a trend of decreasing and then increasing, thereby improving the compliance of the injection support 200 and the syringe 2 when being inserted into and removed from the injection base 100 along the feeding direction F or in a direction opposite to the feeding direction F.
[0106] Please refer to Figures 6 to 8 ,in Figure 6 for Figure 1 Schematic diagram of the front view of the injection bracket in FIG. Figure 7 for Figure 1 Schematic diagram of the top view of the injection bracket in FIG. Figure 8 for Figure 7 Schematic cross-sectional view along the YY section. In detail, the injection support 200 of the present embodiment is also a substantially hollow tubular structure and includes a support body 210, a stopper 220, a carrier 230 and at least one wing 240, wherein the support body 210 is formed with an injector channel 216, and the injector channel 216 extends along a feeding direction F and passes through the support body 210; the stopper 220 is disposed on the support body 210 and protrudes relative to the side wall of the support body 210, and in the present embodiment, for example, is two protrusions protruding outward along a radial direction of the support body 210, and on the support body 2 10 is evenly spaced in a circumferential direction; the carrier 230 is disposed at one end of the bracket body 210 in the feeding direction F and is formed with a bracket opening 236, wherein the bracket opening 236 is connected to the syringe channel 216, and the stopper 220 and the carrier 230 are respectively disposed at the front end and the rear end of the bracket body 210 in the feeding direction F; the wing 240 is disposed on the carrier 230 and protrudes relative to the carrier 230 in the feeding direction F and a radial direction of the bracket body 210. In this embodiment, the number is, for example, two and is evenly spaced in a circumferential direction of the bracket body 210. For the convenience of explanation, the following will be Figure 6 The wing member 240 on the left side is called the first wing member 240a, and Figure 6The wing member 240 on the middle right side is referred to as the second wing member 240 b , and the first wing member 240 a and the second wing member 240 b are suitable for deflecting or pivoting relative to the supporting member 230 .
[0107] In this embodiment, the injection support 200 further includes a guide member 250, wherein the guide member 250 is, for example, a rib-shaped structure disposed on the support body 210 and protruding relative to the side wall of the support body 210, and the number of the guide member 250 is, for example, two, and they are respectively spaced apart from the limiting member 220 in the circumferential direction of the support body 210. In some possible embodiments, the guide member 250 has an end 252, wherein the end 252 is disposed at the end of the guide member 250 adjacent to the limiting member 220 and is separated from the side wall of the support body 210. Through such a configuration, the end 252 can be mutually engaged with the engaging opening 118 of the injection base 100 so that the injection base 100 and the injection support 200 are mutually limited.
[0108] like Figure 6 and Figure 8 As shown, the support body 210 may also be formed with a syringe observation groove 217. In this embodiment, the number of syringe observation grooves 217 is, for example, two, extending along the feeding direction F and penetrating the side wall of the support body 210, so that the user can conveniently observe the position of the body 22, the label arranged on the body 22, and the state of the contents of the syringe 2. Preferably, the support body 210 may also include an elastic member abutment portion 212, wherein the elastic member abutment portion 212 is, for example, a protruding annular structure, arranged at the front end of the support body 210 in the feeding direction F and suitable for abutting the elastic member 300 or allowing the elastic member 300 to be sleeved thereon.
[0109] In some possible embodiments, the injection bracket 200 may further include two fasteners, which are respectively disposed at the front end and the rear end of the bracket body 210 in the feeding direction F. For the convenience of description, the following will be Figure 6 The fasteners at the rear end and the front end in the feeding direction F are respectively referred to as the first fastener 232a and the second fastener 232b, and the radial distance between a surface of each fastener and a central axis B of the syringe channel 236 is substantially equal to the inner diameter of the syringe channel 236. With such a configuration, when the injection support 200 is respectively located at the engaging position in use and the engaging position after use relative to the injection base 100, the first fastener 232a and the second fastener 232b can be engaged with the retaining member 122 respectively, thereby preventing the injection support 200 from shaking in the radial direction unnecessarily.
[0110] On the other hand, Figure 6As shown, the first wing 240a and the second wing 240b respectively include a wing sliding portion 242, and the distance between each wing sliding portion 242 and a central axis B of the syringe channel 216 in the radial direction of the support body 210 gradually changes along the feeding direction F. In this embodiment, the radial distance between the wing sliding portion 242 and the central axis B gradually decreases from large to large, and then increases sharply to form a locking holding space. Through such a configuration, the bottom of the container of the syringe 2 can be clamped under the first wing 240a and the second wing 240b, thereby achieving the effect of fixing the syringe 2.
[0111] The following will describe in detail how the syringe assembly 1 and the syringe 2 of this embodiment cooperate with each other. Figures 9 to 15 When the user wants to assemble the syringe 2 into the syringe assembly 1, the body 22 with the needle 26 can be inserted into the syringe channel 216 of the injection bracket 200. Since the first wing 240a and the second wing 240b can be deflected or pivoted relative to the carrier 230, the two wings 240 can be Fig. 9 As shown by the thick arrows in the middle, they are offset outward by a gap. Since the radial distance between the periphery of the body 22 and the central axis B is greater than the radial distance between the first wing 240a and the second wing 240b and the central axis B, when the body 22 and the needle 26 pass through the above gap and the first wing 240a and the second wing 240b are elastically rebounded or pivotally reset, the syringe 2 can be fixed on the injection bracket 200.
[0112] Then, if Fig.10 and Fig.11 As shown, the injection base 100 and the injection bracket 200 of the present embodiment are suitable for being assembled in a manner of sliding, rotating and sliding again in sequence. Specifically, the user can form a phase difference in the circumferential direction between the first wing 240a and the second wing 240b of the injection bracket 200 equipped with the syringe 2 and the first latch 130a and the second latch 130b of the injection base 100, respectively, so that the limiting member 220 of the injection bracket 200 is circumferentially aligned with the limiting member embedding groove 127 of the injection base 100, and the guide member 250 is aligned with the guide member embedding groove 128 of the injection base 100. Afterwards, the injection bracket 200 is slightly inserted into the bracket channel 116 of the injection base 100 until the bottom of the limiting member 220 or the guide member 250 abuts against the bottom wall of the limiting member embedding groove 127 or the guide member embedding groove 128, and then the injection bracket 200 is inserted as shown in the figure. Fig.12The stopper 220 and the guide member 250 are respectively guided by the stopper inserting groove 127 and the guide inserting groove 128 with gradually narrowing groove widths, thereby entering the stopper groove 117 and the guide groove 146. Afterwards, the injection support 200 is pushed into the injection base 100 along the feeding direction F until the first wing member 240a follows the surfaces of the first latch member sliding connection portion 132a and the second latch member sliding connection portion 132b and slides and is locked in the gap between the above two, and the second wing member 240b follows the surfaces of the third latch member sliding connection portion 132c and the fourth latch member sliding connection portion 132d and slides and is locked in the gap between the above two. During the sliding process, each limiting member 220 is limited by the corresponding limiting groove 117, and each guiding member 250 is guided by the corresponding guiding groove 146. The synergistic effect of the two ensures that no relative rotation or displacement will occur between the injection bracket 200 and the injection base 100 during installation, thereby improving the stability of assembly positioning. At the same time, since the gap between the first latch sliding part 132a and the second latch sliding part 132b is substantially equal to the size of the first wing 240a, and the gap between the third latch sliding part 132c and the fourth latch sliding part 132d is substantially equal to the size of the second wing 240b, when the assembly is completed, each wing 240 is not only retained between each latch sliding part 132 and the abutting member 120 in the feeding direction F, but is also limited by different latch sliding parts 132 in the circumferential direction, so that the body 22, the needle 26 and the injection support 200 of the syringe 2 are all fixed relative to the injection base 100, while the operating part 24 can move relative to the injection base 100 along the feeding direction F. In this way, the user can directly press down or pull up the operating part 24 to perform injection or extraction.
[0113] It is worth mentioning that, since the syringe 2, the injection base 100 and the injection support 200 may be stored for a long time in the above-mentioned assembled state, in order to prevent the end 252 of the guide member 250 from being elastically fatigued due to long-term compression by the guide portion 140, the end 252 of the present embodiment can protrude radially outward through the latch opening 118 and maintain a non-compressed state. On the other hand, since the retaining member 122 is disposed adjacent to the base opening 126, and the surface of the first fastener 232a is substantially tangent to the support channel 116, when the injection support 200 and the injection base 100 are assembled, the retaining member 122 will interfere with the first fastener 232a and abut against each other, preventing the injection support 200 from generating unnecessary shaking in the radial direction, and further improving the installation stability between the injection support 200 and the injection base 100.
[0114] Please refer to Fig.14 and Fig.15When the user has finished injecting the contents inside the body 22, since the radial distance between the periphery of the operating portion 24 and the central axis A is greater than the radial distance between each latching member 130 and the central axis A, when the operating portion 24 is pushed to a position adjacent to the body 22, the first latching member 130a and the second latching member 130b will be squeezed by the operating portion 24, and the operating portion 24 will move along the body 22. Fig.14 The first wing 240a and the second wing 240b are stretched outward in the direction of the thick arrow and plastically deformed, and at the same time, the first wing 240a and the second wing 240b are tightly fitted with the operating portion 24. Afterwards, the operating portion 24, the first wing 240a and the second wing 240b can be pulled in the direction opposite to the feeding direction F until the stopper 220 abuts against the stopper 112. At this time, the elastic force of the elastic member 300 has a tendency to drive the injection bracket 200 and the syringe 2 in the feeding direction F, but the end 252 of the guide member 250 that has been separated from the guide groove 146 is radially expanded based on its own elasticity and abuts against the surface of the abutting member 120. In other words, the injection bracket 200 will be fixed relative to the injection base 100 in the feeding direction F based on the elastic force of the elastic member 300 and the abutting relationship between the end 252 and the abutting member 120. At the same time, the limiting member 220 is engaged by the limiting portion 112 and the limiting groove 117 to prevent the injection bracket 200 from rotating circumferentially relative to the injection base 100, thereby ensuring that the needle 26 can be fully accommodated in the bracket channel 116 without protruding relative to the injection base 100, thereby achieving the effect of facilitating use and improving the safety of medical staff.
[0115] It is worth mentioning that, since the retaining member 122 is disposed adjacent to the base opening 126 and the surface of the second fastener 232b is substantially tangent to the support channel 116, when the injection support 200 and the syringe 2 are pulled up to the position as shown in FIG. Fig.15 When the position is shown, the retaining member 122 will interfere with the second fastener 232b to prevent the injection bracket 200 from shaking in the radial direction, and further improve the stability of the installation between the injection bracket 200 and the injection base 100. In addition, in some possible embodiments, a stop wall may be formed between the portion of the first latch arm 134a of the first latch member 130a connected to the abutting member 120 and the portion of the second latch arm 134b connected to the abutting member 120, and a stop wall is also formed between the portions of the two latch arms of the second latch member 130b connected to the abutting member 120, and Fig.15 The end portion 252 in the middle abuts against the inner side of the stop walls, and the end portion 252 may even form a hook shape and fit with the stop walls. With such a configuration, it is not easy for the user to pull the end portion 252 out of the locking position, thereby preventing the needle 26 from being pulled out of the injection base 100 again due to careless operation and causing danger.
[0116] Please refer to Fig.16 , Fig.16 The syringe assembly 1' of this embodiment is substantially similar to the syringe assembly 1 described above, and the main difference between the two is that the guide portion 140' of the injection base 100' of the syringe assembly 1' does not have a latching opening 118 formed on it.
[0117] Specifically, when the depth of the guide groove 146 is sufficient, the guide member 250 can slide along the guide groove 146 in a natural state. In this case, even if the latching opening 118 is not provided, the elastic force of the end 252 of the guide member 250 can still be maintained under long-term storage, thereby achieving the subsequent latching effect.
[0118] Please refer to Fig.17 and Fig.18 ,in Fig.17 is a three-dimensional schematic diagram of another embodiment of the injection support of the syringe assembly of the utility model, and Fig.18 for Fig.17 The injection bracket 200 ′ of this embodiment is substantially similar to the injection bracket 200 described above, and the main difference between the two is that the injection bracket 200 ′ further includes two inclined portions 260 , and each wing 240 ′ further includes two wing protection portions 244 .
[0119] Specifically, when the injection base 100 and the injection support 200 are assembled, the latch 130 is located outside the corresponding wing 240. Therefore, when the injector assembly 1 collides with an external element, the latch 130 is easily disengaged from the wing 240 due to disturbance, causing the injection base 100 and the injection support 200 to be accidentally separated. To this end, the wing 240' of the injection support 200' of this embodiment further includes two wing protection parts 244, wherein the wing protection parts 244 are, for example, trapezoidal plate structures and are arranged outside the wing sliding parts 242, and the radial distance between each latch 130 and the central axis A is smaller than the radial distance between each wing protection part 244 and the central axis B. With such a configuration, when the injection bracket 200 contacts an external element, the wing protection portion 244 engaged by the latch 130 will abut or collide with the external element before the latch 130, thereby preventing the latch 130 from being disturbed and accidentally released.
[0120] In addition, in the present embodiment, the injection bracket 200' further includes two inclined portions 260, wherein the inclined portions 260 are, for example, wedge-shaped structures disposed between the bracket body 210, the carrier 230, and the wing 240'. Thus, when the injection base 100 and the injection bracket 200' are assembled with each other, the injection bracket 200' can be abutted against the stop wall mentioned above through the inclined portions 260, and can be placed into the injection base 100 along the inclined surface of the inclined portions 260, thereby improving the compliance of the two when assembled.
[0121] The present invention has been disclosed in the above with preferred embodiments, but those skilled in the art should understand that the above embodiments are only used to describe the present invention and should not be interpreted as limiting the scope of the present invention. It should also be noted that any changes and substitutions equivalent to the above embodiments should be considered to be included in the scope of the present invention. The technical features of the above embodiments can be appropriately combined, substituted, omitted and changed without causing conceptual contradictions or structural conflicts. Therefore, the protection scope of the present invention shall be based on the scope of the patent application.
Claims
1. An injection base, characterized in that: include: A base body, including a limiting portion and formed with a limiting groove and a bracket channel, the limiting groove is arranged adjacent to the limiting portion and extends along a feeding direction, the bracket channel is connected to the limiting groove and passes through the base body along the feeding direction; A push member is arranged at one end of the base body in the feeding direction and is formed with a base opening and a limiter inserting groove, the base opening is connected to the bracket channel, and the limiter inserting groove is arranged on the outer side of the base opening in a radial direction of the base body and is adjacent to the limiter groove; as well as At least one latching member is disposed on the abutting member and protrudes relative to the abutting member, and the at least one latching member is suitable for deflecting or pivoting relative to the abutting member.
2. The injection base according to claim 1, characterized in that: A portion of the limiting member embedded groove away from the limiting groove has a groove width in the radial direction that is greater than a groove width of another portion of the limiting member embedded groove adjacent to the limiting groove in the radial direction.
3. The injection base according to claim 1, characterized in that: The utility model also comprises a guiding part, which is arranged on the base body and forms a guiding groove, and the guiding groove extends along the feeding direction and communicates with the support channel.
4. The injection base according to claim 3, characterized in that: The push member is further formed with a guide member embedding groove, which is arranged outside the base opening in the radial direction, and the guide groove is aligned with a part of the guide member embedding groove along the feeding direction.
5. The injection base according to claim 4, characterized in that: The width of the portion of the guide member embedded groove corresponding to the guide groove in the radial direction is smaller than the width of another portion of the guide member embedded groove not corresponding to the guide groove in the radial direction.
6. The injection base according to claim 3, characterized in that: The base body is also formed with a latching opening, and the latching opening passes through a part of the guiding part.
7. The injection base according to claim 3, characterized in that: The limiting portion and the guiding portion are arranged at intervals in a circumferential direction of the base body.
8. The injection base according to claim 1, characterized in that: The invention also comprises a fixing member, wherein the fixing member is arranged on the abutting member and is adjacent to the base opening.
9. The injection base according to claim 1, characterized in that: There are a plurality of at least one latching member, each of which comprises a latching member sliding portion, and a distance between each latching member sliding portion and a central axis of the support channel in the radial direction changes gradually along the feeding direction.
10. The injection base according to claim 1, characterized in that: The at least one latch member includes two latch member sliding parts, the injection base is suitable for being assembled with an injection bracket, and the gap between the two latch member sliding parts is substantially equal to the size of a wing member of the injection bracket.
11. The injection base according to claim 1, characterized in that: The injection base is suitable for being assembled with a syringe, which includes an operating portion, and the distance between the periphery of the operating portion and a central axis of the support channel in the radial direction is greater than the distance between the at least one latch and the central axis in the radial direction.
12. An injection stent, characterized in that: include: A support body is formed with a syringe channel, the syringe channel extends along a feeding direction and passes through the support body; A stopper, disposed on the bracket body and protruding relative to the side wall of the bracket body; A carrier, disposed on the support body and formed with a support opening, the support opening communicates with the syringe channel, and the stopper and the carrier are respectively disposed at the front end and the rear end of the support body in the feeding direction; A guide member is disposed on the bracket body and protrudes relative to the side wall of the bracket body, and the guide member and the limiting member are spaced apart in a circumferential direction of the bracket body; as well as At least one wing is disposed on the carrier and protrudes relative to the carrier, and the at least one wing is suitable for deflecting or pivoting relative to the carrier.
13. The injection bracket according to claim 12, characterized in that: One end portion of the guide member is separated from the side wall of the bracket body.
14. The injection bracket according to claim 12, characterized in that: It also includes two fasteners, wherein the fasteners are respectively arranged at the front end and the rear end of the bracket body in the feeding direction, and the distance between a surface of each fastener and a central axis of the syringe channel in a radial direction of the bracket body is substantially equal to the inner diameter of the syringe channel.
15. The injection bracket according to claim 12, characterized in that: The support body comprises an elastic member abutting portion, which is arranged at the front end of the support body in the feeding direction and is suitable for abutting against an elastic member.
16. The injection bracket according to claim 12, characterized in that: The support body is also formed with a syringe observation groove, which extends along the feeding direction and passes through the side wall of the support body.
17. The injection bracket according to claim 12, characterized in that: There are a plurality of at least one wing member, each of which comprises a wing member sliding portion, and a distance between each wing member sliding portion and a central axis of the syringe channel in a radial direction of the bracket body gradually changes along the feeding direction.
18. The injection bracket according to claim 12, characterized in that: The at least one wing member is in plurality, and the plurality of wing members are arranged at equal intervals in the circumferential direction.
19. The injection bracket according to claim 12, characterized in that: The injection bracket is suitable for being assembled with a syringe, which includes a body, and the distance between the periphery of the body and a central axis of the syringe channel in a radial direction of the bracket body is greater than the distance between the at least one wing and the central axis in the radial direction.
20. A syringe assembly, characterized in that: Suitable for being assembled with a syringe, the syringe assembly include: An injection base as claimed in any one of claims 1 to 11; An injection support as claimed in any one of claims 12 to 19, arranged in the support channel, and the syringe channel is suitable for accommodating the syringe; and An elastic member is disposed between the injection base and the injection support.