Syringe Cover
The syringe cover addresses the issue of liquid leakage by covering the pusher and cylinder, improving connection stability and efficiency in syringe operations.
Patent Information
- Application Number
- JP2021141046
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-08-31
- Publication Date
- 2025-01-09
- Estimated Expiration
- 2041-08-31
AI Technical Summary
Existing syringe connection methods require careful handling to prevent liquid leakage due to unintentional movement of the pusher, leading to reduced work efficiency.
A syringe cover that covers the pusher and at least a portion of the cylinder, providing a gripping portion for secure connection and preventing liquid leakage during operation.
The syringe cover stabilizes the pusher, reducing the risk of liquid leakage and enhancing operational efficiency by allowing secure and efficient injection into containers.
Smart Images

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Abstract
Description
[Technical field]
[0001] The present invention relates to a syringe cover. [Background technology]
[0002] 2. Description of the Related Art Medical applicators used for administering application materials such as adhesion inhibitors and biological tissue adhesives into the body of a patient have been known.
[0003] When using an applicator, a doctor or other practitioner injects a prescribed amount of liquid, such as a dissolving solution, into a vial (container) in which the medication is stored, and dissolves or dilutes the medication by mixing and stirring the medication and liquid in the vial. When using an applicator that is composed of two or more types of medication, two or more vials containing different medications are prepared.
[0004] The following Patent Document 1 discloses a syringe connector with a double-ended needle for transferring liquid into a container using a syringe. The syringe connector of Patent Document 1 has two needle parts composed of double-ended needles, and the resistance value when one puncture part (first puncture part) of the needle parts pierces the seal member of the container is greater than the resistance value when the other puncture part (second puncture part) of the needle parts pierces the seal member of the syringe. Therefore, when connecting the syringe and the container, the syringe is pierced by the needle part before the container, so that the negative pressure in the container is not released before the syringe is inserted into the container, and the liquid held inside the syringe can be automatically injected into the container. [Prior art documents] [Patent documents]
[0005] [Patent Document 1] JP 2020-156924 A Summary of the Invention [Problem to be solved by the invention]
[0006] As disclosed in Patent Document 1, when injecting a liquid held by a syringe into a container containing a drug, the surgeon connects the syringe to the container and presses the plunger. If the surgeon makes a mistake in the connection operation when connecting the syringe to the container, the plunger of the syringe may move and the liquid held therein may leak out. Therefore, the surgeon must perform the connection work with the utmost care so that the plunger does not come into contact with other surrounding members or fingers and cause unintended movement. Therefore, the connection work places a heavy burden on the surgeon, and the work efficiency may be reduced.
[0007] At least one embodiment of the present invention has been made in consideration of the above-mentioned circumstances, and specifically aims to provide a syringe cover that can prevent leakage of liquid when connecting a syringe that holds a liquid to a container that holds a drug and injecting the liquid in the syringe into the container, thereby reducing the workload. [Means for solving the problem]
[0008] In order to solve the above problems, the syringe cover according to the present embodiment is a syringe cover that can be attached to a syringe that holds a predetermined drug and is connected to a container into which the liquid is flowed, the syringe cover having a cylinder that holds a liquid and a plunger that is movable in an axial direction of the cylinder when inserted into the cylinder, and a main body that covers at least an exposed portion of the plunger from the cylinder. The outer surface of the main body portion constitutes a gripping portion that is gripped when connecting the syringe and the container. . Effect of the Invention
[0009] According to at least one embodiment of the present invention, when a syringe holding a liquid is connected to a container holding a drug and the liquid in the syringe is injected into the container, at least the exposed portion of the plunger from the cylindrical body is covered by the syringe cover, thereby preventing leakage of liquid due to unintended movement of the plunger and reducing the workload of the surgeon. [Brief description of the drawings]
[0010] [Figure 1] FIG. 1 is a schematic perspective view showing a configuration of a medical kit according to the present embodiment. [Diagram 2] FIG. 2 is a schematic perspective view showing the configurations of a syringe, a syringe side attachment device, a syringe connector, and a container according to the present embodiment. [Diagram 3] FIG. 2 is a schematic cross-sectional view for explaining a state in which the medical kit according to the present embodiment is used. [Figure 4] 2 is a schematic perspective view showing the syringe cover according to the embodiment in an open state. FIG. [Diagram 5] 2 is a schematic perspective view showing a syringe cover according to the embodiment in a closed state. FIG. [Figure 6] 2 is a schematic plan view of the syringe cover according to the embodiment, seen from the open surface side. FIG. [Figure 7] 2 is a schematic cross-sectional view of a syringe cover according to the embodiment. FIG. [Figure 8A] 7 is a schematic cross-sectional view taken along line AA shown in FIG. 6. [Figure 8B] 7 is a schematic cross-sectional view taken along line BB shown in FIG. 6. [Figure 9A] 1 is a schematic configuration diagram of a syringe cover according to the embodiment of the present invention in a state before fitting, as viewed from the lower side. FIG. [Figure 9B] 13 is a schematic configuration diagram of the syringe cover according to the embodiment after fitting, as viewed from the lower side. FIG. [Figure 10] 4 is a schematic cross-sectional view showing a fitted state between the syringe cover and the syringe side attachment according to the embodiment. FIG. [Figure 11] 1 is a schematic partial plan view showing a fitted state between the syringe cover and the syringe side attachment according to the embodiment; FIG. [Figure 12] 1 is a schematic perspective view showing a state in which a syringe connector of a medical kit according to the present embodiment has been detached from a container. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0011] Hereinafter, the embodiments for carrying out the present invention will be described in detail with reference to the drawings. The embodiments shown here are merely illustrative in order to embody the technical idea of the present invention, and do not limit the present invention. Furthermore, all other possible embodiments, examples, and operating techniques that can be conceived by those skilled in the art without departing from the gist of the present invention are included in the scope and gist of the present invention, and are included in the scope of the inventions described in the claims and their equivalents.
[0012] Furthermore, for the convenience of illustration and ease of understanding, the drawings attached to this specification may be represented diagrammatically with appropriate changes in scale, aspect ratio, shape, etc. from the actual product; however, these are merely examples and are not intended to limit the interpretation of the present invention.
[0013] In the following description, when ordinal numbers such as "first" and "second" are used, unless otherwise specified, they are used for convenience and do not dictate any order.
[0014] As shown in Fig. 1, the medical kit 1 according to this embodiment includes a syringe side attachment 100, a syringe connector 200, a plurality of syringes (first syringe 310, second syringe 320), a plurality of containers (first container 410, second container 420), and a syringe cover 500. Fig. 1 shows the medical kit 1 according to this embodiment in a state in which the syringe side attachment 100 attached to each syringe 310, 320 and the syringe connector 200 connected to each container 410, 420 are connected (i.e., a state in which the liquid held by each syringe 310, 320 can be injected into each container 410, 420). The syringe cover 500 attached to the plurality of syringes (first syringe 310, second syringe 320) is attached to each of the syringes 310, 320 arranged in parallel. Although the medical kit 1 is configured to include multiple syringes (first syringe 310, second syringe 320) and multiple containers (first container 410, second container 420), the number of syringes and containers may be one each, or three or more.
[0015] The uses of medical kit 1 are not particularly limited, but for example, it can be used when injecting a liquid such as a dissolving solution from each syringe 310, 320 into each container 410, 420 when using an applicator (sprayer) to administer a coating material such as an adhesion prevention material or a biological tissue adhesive.
[0016] <Container> 1 to 3, the first container 410 is a vial that holds a drug therein. The second container 420 is a vial that holds a drug of a different type from the drug held in the first container 410. The first container 410 and the second container 420 have been subjected to EB sterilization.
[0017] 3, the first container 410 is sealed by a seal member 412 arranged at an opening 411 of the first container 410. The second container 420 is sealed by a seal member 422 arranged at an opening 421 of the second container 420. Therefore, the inside of each container 410, 420 is configured to maintain a negative pressure until each needle portion 210, 220 described later pierces the seal members 412, 422 arranged at each container 410, 420.
[0018] In this embodiment, the volume of the first container 410 is configured to be smaller than the volume of the second container 420. However, the relationship in volume between the containers 410, 420 is not particularly limited. For example, the volume of the first container 410 may be larger, or the volumes of the first container 410 and the second container 420 may be the same.
[0019] The type of drug held in the first container 410 and the type of drug held in the second container 420 are not particularly limited, but for example, when the application material is a biological tissue adhesive, the drug held in one container can be thrombin, and the drug held in the other container can be fibrinogen. When the application material is an adhesion prevention material, the drug held in one container can be carboxymethyldextrin modified with a succinimidyl group, and the drug held in the other container can be a mixture of sodium bicarbonate and sodium carbonate.
[0020] The form of the medicine held in each of the containers 410, 420 is not particularly limited, but may be, for example, a solid (tablet, granules, etc.), a powder (powder, etc.), or a liquid.
[0021] The material of the sealing members 412, 422 arranged in each container 410, 420 is not particularly limited, but examples thereof include various rubber materials such as natural rubber, butyl rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, and silicone rubber, various thermoplastic elastomers such as polyurethane-based, polyester-based, polyamide-based, olefin-based, and styrene-based, and elastic materials such as mixtures of these.
[0022] <Syringe> As shown in Fig. 2, the first syringe 310 includes a cylindrical body 311 that holds a liquid, and a plunger 312 that is inserted into the cylindrical body 311 so as to be movable along the axial direction. A pressing portion 312a is provided on the base end side of the plunger 312 for pressing and moving the plunger 312 when discharging the liquid held in the cylindrical body 311. The first syringe 310 can discharge the liquid from a nozzle portion 313 (see Fig. 3) provided on the tip side of the first syringe 310 by the advancement of the plunger 312 inside the cylindrical body 311 (movement toward the tip side of the cylindrical body 311). The liquid discharged from the first syringe 310 is injected into the first container 410 in a connected state with the first container 410.
[0023] The second syringe 320 includes a cylindrical body 321 that holds a liquid, and a plunger 322 that is movably inserted into the cylindrical body 321 along the axial direction. A pressing portion 322a is provided on the base end side of the plunger 322 for pressing and moving the plunger 322 when discharging the liquid held in the cylindrical body 321. The second syringe 320 can discharge the liquid from a nozzle portion 323 (see FIG. 3) provided on the tip side of the second syringe 320 by the advancement of the plunger 322 inside the cylindrical body 321 (movement toward the tip side of the cylindrical body 321). The liquid discharged from the second syringe 320 is injected into the second container 420 in a connected state with the second container 420.
[0024] The type of liquid held in each of the syringes 310, 320 is not particularly limited, but for example, distilled water can be used.
[0025] In this embodiment, the volume of first syringe 310 is configured to be smaller than the volume of second syringe 320. However, the relationship in volume between syringes 310, 320 is not particularly limited. For example, first syringe 310 may be configured to have a larger volume, or first syringe 310 and second syringe 320 may have the same volume.
[0026] The first syringe 310 and the second syringe 320 are configured as prefilled syringes in which liquid is held in advance when they are housed in a packaging material (when they are transported or stored). Therefore, as shown in FIG. 3, a seal member 314 for preventing leakage of liquid is disposed in the first syringe 310. Similarly, a seal member 324 for preventing leakage of liquid is disposed in the second syringe 320. The syringe side mounting device 100 and the syringe cover 500 can be housed in a packaging material together with the first syringe 310 and the second syringe 320 in a state where they are attached to the first syringe 310 and the second syringe 320. In addition, the inside of each syringe 310 and 320 is AC sterilized.
[0027] In addition, the syringe side attachment 100, each of the syringes 310, 320, and the syringe cover 500 are sterilized by EB sterilization, EOG sterilization, autoclave sterilization, etc. while being housed in the packaging material. The syringe cover 500 may be attached to cover each of the syringes 310, 320 to which the syringe side attachment 100 is attached. This allows the surgeon to remove the syringe cover 500 from the packaging material and connect the syringe side attachment 100 attached to each of the syringes 310, 320 to the syringe connector 200 when starting to inject liquid from each of the syringes 310, 320 to each of the containers 410, 420. This makes it even easier to prepare for the procedure using the applicator. The syringe side attachment 100 and each of the syringes 310, 320 may be fixed by an adhesive or the like.
[0028] The material of the seal members 314, 324 disposed on the respective syringes 310, 320 is not particularly limited, but for example, the same material as the seal members 412, 422 disposed on the respective containers 410, 420 described above can be used.
[0029] The liquid held in each of the syringes 310, 320 is not limited to a prefilled state, and the surgeon may aspirate and fill each of the syringes 310, 320 from a container (liquid bottle) that contains the liquid. In the case where the surgeon aspirates and fills the liquid, the syringe cover 500 and each of the syringes 310, 320 to which the syringe side mounting tool 100 is attached may be kept separate within the packaging material, and the surgeon may aspirate and fill each of the syringes 310, 320 with the liquid, and then attach the syringe cover 500.
[0030] <Syringe connector> The syringe connector 200 is used when connecting a plurality of containers 410, 420 that hold medicines to the syringe side mounting fixtures 100 attached to the syringes 310, 320, respectively.
[0031] As shown in FIG. 3, the syringe connector 200 generally has a main body 201 that can be attached to each of the containers 410 and 420, and a hollow needle portion (first needle portion 210, second needle portion 220) held by the main body 201. The main body 201 of the syringe connector 200 also has a first member 230 that can be attached to and detached from each of the containers 410 and 420, and a second member 240 that holds each of the needle portions 210 and 220. As shown in FIG. 3, the main body 201 of the syringe connector 200 is configured to be connectable to the syringe side mounting device 100. The syringe connector 200, including the first needle portion 210 and the second needle portion 220, has been sterilized by EB sterilization, EOG sterilization, autoclave sterilization, or the like.
[0032] 3, the first needle 210 is configured as a so-called double-ended needle, having a first puncture portion 211 that protrudes toward one end side (lower side in FIG. 3) of the main body 201 and can pierce a seal member 412 arranged in the first container 410, and a second puncture portion 212 that protrudes toward the other end side (upper side in FIG. 3) of the main body 201 and can pierce a seal member 314 arranged in the first syringe 310. The second needle 220 is configured as a so-called double-ended needle, having a first puncture portion 221 that protrudes toward one end side (lower side in FIG. 3) of the main body 201 and can pierce a seal member 422 arranged in the second container 420, and a second puncture portion 222 that protrudes toward the other end side (upper side in FIG. 3) of the main body 201 and can pierce a seal member 324 arranged in the second syringe 320.
[0033] First needle portion 210 and second needle portion 220 have a generally cylindrical outer shape with sharp puncture ends at first puncture portions 211, 221 and second puncture portions 212, 222. The material of each needle portion 210, 220 is not particularly limited, but may be, for example, a known metal.
[0034] First member 230 constitutes the outer frame of syringe connector 200, and houses second member 240 therein. Second member 240 has needle holder 241 that fixedly holds first needle 210 and second needle 220, as shown in FIG.
[0035] Needle holding portion 241 has a first needle holding portion 242 which covers the periphery of second puncture portion 212 of first needle portion 210, thereby preventing second puncture portion 212 from being exposed to the outside of syringe connector 200, and a second needle holding portion 243 which covers the periphery of second puncture portion 222 of second needle portion 220, thereby preventing second puncture portion 222 from being exposed to the outside of syringe connector 200.
[0036] The main body 201 of the syringe connector 200 has a lock mechanism 250 for maintaining the connection with the syringe side mounting fixture 100 .
[0037] The locking mechanism 250 is composed of a claw portion that can be inserted into a groove portion 140 formed in the syringe-side mounting device 100. When the first puncture portions 211, 221 are pierced through the seal members 412, 422 of the containers 410, 420, and when the second puncture portions 212, 222 are pierced through the seal members 314, 324 of the syringes 310, 320, the locking mechanism 250 fits into the groove portion 140 of the syringe-side mounting device 100, thereby connecting the second member 240 and the syringe-side mounting device 100. The second member 240 and the syringe-side mounting device 100 maintain a connected state via the locking mechanism 250 and the groove portion 140, thereby preventing the syringe-side mounting device 100 from being separated from the second member 240 when the main body portion 201 is removed from the containers 410, 420 as shown in FIG.
[0038] 1 and 2, a locking portion 260 is provided on the side of the syringe connector 200 to lock the syringe side mounting device 100 in a state where it is attached to the syringe connector 200. The locking portion 260 has a configuration that can maintain a connected state with the syringe connector 200 by abutting against the side of the syringe side mounting device 100, and may be formed of, for example, a leaf spring. When the syringe side mounting device 100 is attached to the syringe connector 200, the locking portion 260 locks the syringe side mounting device 100 that has been correctly inserted to the mounting completion position. It is preferable to provide the locking portion 260 on only one side in order to strengthen the locked state between the syringe side mounting device 100 and the syringe connector 200.
[0039] A marker section 270 is provided on the outer surface of the syringe connector 200 to indicate the attachment completion position of the syringe side attachment device 100. The marker section 270 makes it easy to recognize the attachment completion position of the syringe side attachment device 100 relative to the syringe connector 200. The marker section 270 has a configuration that allows the attachment completion position of the syringe side attachment device 100 to be recognized (preferably a configuration that allows visual identification). The marker section 270 may be, for example, a line (any type of line) of the same color as or a different color from the syringe side attachment device 100. If the operator inserts the syringe side attachment device 100 in accordance with the position of the marker section 270 of the syringe connector 200, the operator can easily insert the syringe side attachment device 100 to an appropriate attachment completion position relative to the syringe connector 200, and the two can be appropriately connected.
[0040] The constituent material of the syringe connector 200 (first member 230, second member 240) is not particularly limited, but may be, for example, polypropylene, polyethylene terephthalate, polymethyl methacrylate, polycarbonate, resin materials such as ultraviolet curing resin, glass, ceramics, etc.
[0041] Syringe connector 200 can be housed in a predetermined packaging material in a state where it is attached to each of containers 410, 420 (as shown in FIG. 2). Furthermore, syringe connector 200 and each of containers 410, 420 can be housed in a packaging material after being sterilized by EB sterilization, EOG sterilization, autoclave sterilization, or the like.
[0042] <Syringe side attachment> 2 or 3, the syringe side mounting device 100 includes a first connection part 110, a second connection part 120, and a coupling part 130. The syringe side mounting device 100 is mounted on the tip side of a plurality of syringes 310, 320.
[0043] The first connector 110 is configured to be connectable to a nozzle portion 313 (see FIG. 3) of a first syringe 310. The first connector 110 is also configured to be connectable to a first needle holder 242 included in the syringe connector 200, so that the first syringe 310 can be connected thereto. The second connector 120 is configured to be connectable to a nozzle portion 323 (see FIG. 3) of a second syringe 320. The second connector 120 is also configured to be connectable to a second needle holder 243 included in the syringe connector 200, so that the second syringe 320 can be connected thereto.
[0044] Nozzle portion 313 of first syringe 310 can be fitted into first connecting portion 110 by inserting nozzle portion 313 of first syringe 310 into insertion portion 111 of first connecting portion 110. Furthermore, nozzle portion 323 of second syringe 320 can be fitted into second connecting portion 120 by inserting nozzle portion 323 of second syringe 320 into insertion portion 121 of second connecting portion 120.
[0045] As shown in FIG. 2, connecting portion 130 has a first guide portion 131 arranged so as to cover at least a portion of the outer peripheral surface of cylindrical body 311 of first syringe 310, a second guide portion 132 arranged so as to cover at least a portion of the outer peripheral surface of cylindrical body 311 of second syringe 320, and a support portion 133 arranged between first guide portion 131 and second guide portion 132 and connecting first guide portion 131 and second guide portion 132.
[0046] The first guide portion 131 is formed in an arc shape capable of covering a part of the outer circumferential surface of the cylindrical body 311. The second guide portion 132 is formed in an arc shape capable of covering a part of the outer circumferential surface of the cylindrical body 321. The support portion 133 is formed in a flat plate shape extending between the first guide portion 131 and the second guide portion 132. Note that the circumferential range in which the first guide portion 131 covers the cylindrical body 311 and the circumferential range in which the second guide portion 132 covers the cylindrical body 321 are not particularly limited as long as they can perform the guide function during insertion of each cylindrical body 311, 321 and the posture maintaining function after insertion.
[0047] The syringe side mounting fixture 100 is provided with a fitting hole 150 into which a fitting portion 590 for mounting and fixing provided on the syringe cover 500 described later is fitted (see FIG. 10). The syringe cover 500 is attached to the syringe side mounting fixture 100 with the fitting portion 590 fitted into the fitting hole 150, so that the syringe cover 500, the syringe side mounting fixture 100, the syringe connector 200, and the syringes 310, 320 can be simultaneously detached from the containers 410, 420 without coming off from the syringe side mounting fixture 100 during a detachment operation, as shown in FIG.
[0048] Moreover, it is preferable that the housing of the syringe side mounting tool 100 is colored in a color different from that of the syringe connector 200 so that the position at which mounting to the syringe connector 200 is completed can be easily recognized.
[0049] The material of the syringe side mounting tool 100 is not particularly limited, and for example, the same material as that of the syringe connector 200 can be used.
[0050] <Syringe cover> 1, the syringe cover 500 is configured to cover at least the plunger 312 of the first syringe 310 and the plunger 322 of the second syringe 320 when the first syringe 310 and the second syringe 320 are connected to the containers 410 and 420. The syringe cover 500 is attached to each of the syringes 310 and 320 arranged in parallel.
[0051] 4 or 5, the main body 501 of the syringe cover 500 is divided into a first housing 510 and a second housing 520, and is connected so as to be openable and closable via a hinge portion 530 provided at the upper portion (near the upper end portion in FIG. 5) of each housing 510, 520. The syringe cover 500 has an outer shape, a size, and the like appropriately set so that the operator can grasp the syringe cover 500 when attaching or detaching each syringe 310, 320 to or from each container 410, 420. Thus, the outer surfaces of the main body 501 (the outer surfaces of the first housing 510 and the second housing 520) form a grip portion.
[0052] As shown in Fig. 4 and Fig. 6, the first housing 510 has a substantially rectangular parallelepiped shape having an open surface (hereinafter referred to as "open surface") on one side through which the first syringe 310 and the second syringe 320 can be inserted and removed. As shown in Fig. 4 and Fig. 6, the second housing 520 has a substantially rectangular parallelepiped shape having an open surface on one side, similar to the first housing 510. As shown in Fig. 5, corners along the longitudinal direction of the first housing 510 and corners along the longitudinal direction of the second housing 520 are rounded so that the main body 501 of the syringe cover 500 can be easily gripped. Therefore, the syringe cover 500 has a substantially rounded rectangular shape when viewed from above (or below).
[0053] 5, the main body 501 is closed by moving one housing (for example, the first housing 510) toward the other housing (for example, the second housing 520) so that the open surface of the first housing 510 faces the open surface of the second housing 520, and abutting the end face of the open surface of the first housing 510 against the end face of the open surface of the second housing 520. The syringe cover 500 can be held by an operator when in the closed state. Furthermore, the main body 501 shields the plunger 312 of the syringe 310 and the plunger 322 of the syringe 320 housed in the internal space when in the closed state, and prevents the plungers 312, 322 from contacting other surrounding members or the operator's fingers during attachment and detachment operations.
[0054] Moreover, the main body 501 is opened by moving the end face on the open side of one housing (for example, the first housing 510) in a direction away from the end face on the open side of the other housing (for example, the second housing 520). As a result, when the main body 501 is opened, the syringe cover 500 can access the plungers 312, 322 of the syringes 310, 320. Therefore, even if the operator makes an incorrect connection operation when connecting the syringes 310, 320 to the containers 410, 420, the operator can open and remove the syringe cover 500 and operate the plungers 312, 322 himself to inject the liquid held in the syringes 310, 320 into the containers 410, 420.
[0055] Hinge unit 530 rotatably connects one side of first housing 510 to second housing 520. Main body unit 501 can be opened and closed by moving the open surface of first housing 510 and the open surface of second housing 520 closer to or farther apart via hinge unit 530. Hinge unit 530 can be easily formed when main body unit 501 is molded from resin by forming it with a thin wall.
[0056] In this embodiment, the hinge portion 530 is provided so as to be connected to the upper end portions of the first housing 510 and the second housing 520. That is, the hinge portion 530 is located on the upper side of the syringe cover 500 when the syringe cover 500 is in use. Therefore, when the operator grasps the syringe cover 500 during the connecting operation, the hinge portion 530 does not come into contact with the palm of the hand, so that the operator can easily grasp the syringe cover 500 and easily perform the connecting operation. The hinge portion 530 may be provided on the side end portions of the first housing 510 and the second housing 520. In such a configuration, it is preferable to perform processing to minimize the discomfort when the hinge portion 530 is grasped by performing smooth R processing on the corners or making the corners thin so that the syringe cover 500 fits comfortably in the hand when the operator grasps the syringe cover 500.
[0057] 4, first housing 510 and second housing 520 have on their inner surfaces storage section 540 for storing and holding first syringe 310 and second syringe 320. Storage section 540 is composed of first storage section 541 and second storage section 542.
[0058] A plurality of first storage sections 541 and a plurality of second storage sections 542 are provided on the inner surface of first housing 510 and the inner surface of second housing 520, respectively, to form a space for storing and holding each of syringes 310 and 320. Each of storage sections 541 and 542 provided in first housing 510 and each of storage sections 541 and 542 provided in second housing 520 are arranged to face each other and form a pair when main body section 501 is in a closed state. Therefore, as shown in FIG. 6, the adjacent interval between each of storage sections 541 and 542 provided in first housing 510 is equal to the adjacent interval between each of storage sections 541 and 542 provided in second housing 520. This allows syringe cover 500 to store and hold each of syringes 310 and 320.
[0059] 4 and 7, first housing 541 is composed of a plate-like member erected from the inner surface of first housing 510 and second housing 520 toward the open surface, and a plurality of first housings 541 are provided at predetermined intervals (adjacent intervals) along the axial direction on the inner surfaces of first housing 510 and second housing 520. First housing 541 houses and covers cylindrical body 311 of first syringe 310 and cylindrical body 321 of second syringe 320.
[0060] The installation positions and the number of first storage portions 541 relative to first housing 510 and second housing 520 are determined according to the overall lengths (specifically, the lengths of cylindrical bodies 311, 321) of first syringe 310 and second syringe 320 to be used so that cylindrical body 311 of first syringe 310 and cylindrical body 321 of second syringe 320 can be held in contact with each other. In this embodiment, three first storage portions 541 are provided at predetermined adjacent intervals from the lower end side of first housing 510 (second housing 520) as shown in FIG.
[0061] As shown in FIG. 4, the first accommodating portion 541 has a first recess 541a that abuts against and holds a part of the outer circumferential surface of each of the cylindrical bodies 311 and 321.
[0062] As shown in FIG. 8A, the first recess 541a has a substantially semicircular shape formed with a radius of curvature that matches the outer diameter size of the abutting cylindrical bodies 311 and 321. The first housing 541 has a boundary portion 541b between the first recess 541a that houses the cylindrical body 311 and the first recess 541a that houses the cylindrical body 321. When the main body 501 is in a closed state, the first housing 541 of the first housing 510 and the first housing 541 of the second housing 520 form a space that houses the cylindrical bodies 311 and 321 so as to cover the outer peripheral surfaces of the cylindrical bodies 311 and 321 in the circumferential direction. At this time, the top of the boundary portion 541b of the first housing 541 abuts against the top of the opposing boundary portion 541b. Each cylindrical body 311 and 321 can perform a connection operation in a stable posture without changing its posture by being held by the first housing 541.
[0063] First recess 541a can be formed according to the outer diameter size of cylindrical body 311 of first syringe 310 and cylindrical body 321 of second syringe 320. Therefore, first recess 541a may have different or equal radii of curvature.
[0064] 4 and 7, second housing portion 542 is composed of a plate-like member erected from the inner surface of first housing 510 and second housing 520 toward the open surface, and a plurality of second housing portions 542 are provided at predetermined intervals (adjacent intervals) along the axial direction on the inner surfaces of first housing 510 and second housing 520. Second housing portion 542 accommodates and covers an exposed portion of plunger 312 located on the base end side of flange portion 311a of first syringe 310 and an exposed portion of plunger 322 located on the base end side of flange portion 321a of second syringe 320.
[0065] The installation positions and the number of second housings 542 relative to first housing 510 and second housing 520 are determined according to the overall lengths of first syringe 310 and second syringe 320 to be used (specifically, the exposed lengths of plungers 312, 322) so that exposed portions of plungers 312, 322 can be accommodated. In this embodiment, four second housings 542 are provided at predetermined adjacent intervals between first housing 510 (second housing 520) and the upper end of first housing 510 and first housing 510's uppermost first housing 541, as shown in FIG.
[0066] As shown in FIG. 4, the second accommodating portion 542 has a second recess 542a that does not come into contact with the pressing portion 312a of the pusher 312 and the pressing portion 322a of the pusher 322 and accommodates the exposed portions of the pushers 312, 322 so as not to impede the movement of the pushers 312, 322.
[0067] As shown in FIG. 8B, the second recess 542a has a substantially semicircular shape formed with a radius of curvature larger than the outer diameter size of the pressing portion 312a of the pusher 312 and the pressing portion 322a of the pusher 322 so as not to come into contact with the pressing portion 312a of the pusher 312 and the pressing portion 322a of the pusher 322. The second housing portion 542 has a boundary portion 542b between the second recess 542a that houses the pusher 312 and the second recess 542a that houses the pusher 322. When the main body portion 501 is in a closed state, the second housing portion 542 of the first housing 510 and the second housing portion 542 of the second housing 520 form a space that houses the exposed portions of the pushers 312 and 322 so as to cover them in the circumferential direction. At this time, the top of the boundary portion 542b of the second housing portion 542 abuts against the top of the opposing boundary portion 542b. Each plunger 312, 322 can move relative to each cylindrical body 311, 321 without coming into contact with other surrounding components when covered by the second recess 542a, and therefore can move automatically due to the negative pressure of the containers 410, 420 when each syringe 310, 320 is connected to each container 410, 420.
[0068] The second recesses 542a can be formed according to the exposed portions of the pushers 312, 322 and the outer diameter sizes of the pressing portions 312a, 322a. Therefore, the second recesses 542a may have different or equal radii of curvature.
[0069] 6, first housing 510 and second housing 520 have a plurality of holes 550. Holes 550 are composed of first hole 551 and second hole 552, and are formed in pairs on the boundary of the longitudinal central axis of each housing 510, 520. Holes 550 function as vents to allow a sterilization medium, such as ethylene oxide gas or high-pressure steam, to permeate the inside of the cover during sterilization of syringe cover 500.
[0070] A plurality of first holes 551 are provided along the axial direction of first housing 510 and second housing 520. First holes 551 have an elongated hole shape that is shorter than second holes 552.
[0071] Second hole 552 is disposed at a position where it can face flange 311a of cylindrical body 311 (see FIG. 11). Second hole 552 has an elongated hole shape similar to first hole 551, and is formed longer so as to have a larger opening area than first hole 551. Since second hole 552 has a larger opening area than first hole 551, a sterilization medium such as ethylene oxide gas or high-pressure steam can be sufficiently distributed inside the cover during sterilization of syringe cover 500.
[0072] Second hole 552 is longer and has a larger opening area than first hole 551. Therefore, the portion where second hole 552 is formed in first housing 510 and second housing 520 may be thinner than other portions. When the portion is thinner, first housing 510 and second housing 520 have a partially reduced strength, and there is a high possibility that damage may occur during attachment and detachment operations. Therefore, reinforcing portion 552a for reinforcing is provided on the outer surface of first housing 510 and second housing 520 at the position where second hole 552 is formed.
[0073] 5, reinforcing portion 552a is provided in second hole portion 552 so as to cover the periphery of the end portion on the distal side from the longitudinal central axis of each of housings 510 and 520. By providing reinforcing portion 552a, the strength of the vicinity of second hole portion 552 is increased, and damage to syringe cover 500 during attachment and detachment operations is prevented.
[0074] 4 and 5, first housing 510 and second housing 520 are provided with an engagement portion 560 for maintaining a closed state. Engagement portion 560 is composed of a pair of engagement holes 561 and a pair of engagement claws 562 that engage with each of engagement holes 561. Engagement holes 561 and engagement claws 562 are arranged at positions where they can engage with each other when one housing (e.g., first housing 510) is brought close to the other housing (e.g., second housing 520).
[0075] 6, the engagement hole 561 is provided facing the side end portion on the lower side of the first housing 510 in the width direction (left and right direction). The engagement hole 561 is provided at a position where it can engage with an engagement claw 562 of the second housing 520, which is to be engaged, when the main body 501 is in the closed state.
[0076] 6, the engagement claw 562 is provided to face the side end portion on the lower side of the second housing 520 in the width direction (left and right direction). The engagement claw 562 is provided at a position where it can engage with the engagement hole 561 of the first housing 510, which is the engagement target, when the main body 501 is in the closed state.
[0077] 5, a plurality of protrusions 570 are provided along the axial direction at corners on the outer surface of first housing 510 and at corners on the outer surface of second housing 520. That is, a plurality of protrusions 570 are provided on the outer surface of main body 501 constituting the gripping portion of syringe cover 500.
[0078] The protrusions 570 function as anti-slip parts that prevent slippage in the vertical direction (i.e., the direction in which the syringes 310, 320 are attached to and detached from the containers 410, 420) when the surgeon grasps the main body 501 in the closed state. Therefore, when the surgeon grasps the syringe cover 500, a frictional force is generated between the protrusions 570 and the contact part of the surgeon's palm, etc., and an anti-slip effect is exhibited, allowing the surgeon to easily perform the attaching and detaching operation. The number, size, and installation position of the protrusions 570 are not particularly limited, and can be appropriately set according to the size of the syringe cover 500, etc.
[0079] As shown in FIG. 7, an extension 580 having a recessed groove on the tip side is provided slightly above the center of the first housing 510. The extension 580 is provided so as to extend from the boundary 542b of the second housing 542 toward the open surface. The recessed groove of the extension 580 is located at a position protruding from the open surface. The extension 580 functions as an alignment portion for facilitating the fitting of the first housing 510 and the second housing 520 in a state in which the syringes 310 and 320 are housed. The recessed groove can be fitted with the top of the boundary 542b of the opposing second housing 542.
[0080] The main body 501 of the syringe cover 500 has a fitting portion 590 that fits into the fitting hole 150 provided in the syringe-side mounting fixture 100. When the main body 501 houses each of the syringes 310, 320 to which the syringe-side mounting fixture 100 is attached, the engagement hole 561 of the first housing 510 and the engagement claw 562 of the second housing 520 engage with each other as described above, and in this state, the fitting portion 590 fits into the fitting hole 150 of the syringe-side mounting fixture 100.
[0081] As shown in FIGS. 9A and 9B, fitting portion 590 is made up of fitting protrusion 591 and fitting recess 592.
[0082] As shown in Fig. 9A, fitting convex portion 591 is provided to protrude from the top of boundary portion 541b of first storage portion 541 provided at the bottom of first housing 510 toward the open surface side. As shown in Fig. 10, fitting convex portion 591 passes through fitting hole 150 provided in syringe side mounting fixture 100 and fits into the opposing fitting recess 592 when main body portion 501 is in the closed state.
[0083] The fitting recess 592 is provided in a concave shape from the top of the boundary portion 541b of the first housing portion 541 provided at the bottom of the second housing 520 toward the inner surface side of the second housing 520. As shown in Fig. 10, when the main body portion 501 is in the closed state, the fitting recess 592 fits with the tip portion of the fitting protrusion 591 that has passed through the fitting hole 150 of the syringe side mounting fixture 100.
[0084] As shown in Fig. 11, when the main body 501 is in the closed state, the syringe cover 500 is attached to the syringe side attachment 100 via the fitting portion 590. At this time, the syringe cover 500 is fixed to the syringe side attachment 100 by the action of the fitting portion 590 as shown in Fig. 11, and therefore does not come off from the syringe side attachment 100. Therefore, when the operator lifts the syringe cover 500 upward while holding the containers 410 and 420 in a fixed state as shown in Fig. 12, the syringe side attachment 100, the syringe connector 200, and each of the syringes 310 and 320 can be detached from each of the containers 410 and 420.
[0085] The syringe cover 500 can be made of, for example, a resin material such as polypropylene, polyethylene terephthalate, polymethyl methacrylate, polycarbonate, or ultraviolet curing resin, glass, ceramics, etc. In addition, the syringe cover 500 is preferably made of a transparent material so that the state of the plungers 312, 322 of the syringes 310, 320 contained therein can be easily grasped.
[0086] Next, we will explain the procedure for using the medical kit 1. Note that the procedure for using the medical kit 1 shown below is merely an example, and can be appropriately changed when other components are added.
[0087] The surgeon prepares each of the containers 410, 420 to which the syringe connector 200 is attached. When preparing the syringe connector 200 and each of the containers 410, 420, if the instruments are attached and are packed in a package in a sterilized state, the surgeon removes them from the package.
[0088] The surgeon also prepares each of the syringes 310, 320 housed in the syringe cover 500 with the syringe side attachment 100 attached. When preparing the syringe side attachment 100, each of the syringes 310, 320, and the syringe cover 500, if the instruments are attached and packed in a package in a sterilized state, the surgeon removes them from the package.
[0089] The operator, while holding the syringe cover 500, moves the syringe side attachment 100 attached to each of the syringes 310, 320 close to the syringe connector 200 attached to each of the containers 410, 420. At this time, the operator connects the first connection part 110 of the syringe side attachment 100 to the first needle holding part 242 of the syringe connector 200, and connects the second connection part 120 of the syringe side attachment 100 to the second needle holding part 243 of the syringe connector 200. In addition, since the plungers 312, 322 of the syringes 310, 320 are covered by the syringe cover 500, they do not come into contact with other surrounding members or the operator's fingers, and therefore do not move unintentionally.
[0090] The operator presses the syringe side mounting tool 100 against the syringe connector 200. As a result, as shown in FIG. 3, the second puncture portion 212 of the first needle portion 210 can pierce the seal member 314 of the first syringe 310, and the second puncture portion 222 of the second needle portion 220 can pierce the seal member 324 of the second syringe 320. Also, as shown in FIG. 3, the operator can pierce the seal member 412 of the first container 410 with the first puncture portion 211 of the first needle portion 210, and pierce the seal member 422 of the second container 420 with the first puncture portion 221 of the second needle portion 220. As a result, the inside of the first container 410 can be communicated with the inside of the first syringe 310 via the first needle portion 210, and the inside of the second container 420 can be communicated with the inside of the second syringe 320 via the second needle portion 220.
[0091] When the inside of the first container 410 and the inside of the first syringe 310 are in communication with each other, the liquid is automatically injected from the first syringe 310 to the first container 410 due to the negative pressure inside the first container 410. Also, when the inside of the second container 420 and the inside of the second syringe 320 are in communication with each other, the liquid is automatically injected from the second syringe 320 to the second container 420 due to the negative pressure inside the second container 420. At this time, the plungers 312, 322 of the syringes 310, 320 are movably covered by the syringe cover 500, and therefore can be moved without coming into contact with other surrounding members or the operator's fingers.
[0092] After the liquid is injected into each of the containers 410, 420, the surgeon grasps the syringe cover 500 and detaches the syringe cover 500 from each of the containers 410, 420. At this time, the syringe cover 500 is attached to the syringe side attachment tool 100 by the fitting portion 590, so the syringe cover 500 does not detach from the syringe side attachment tool 100 (see FIG. 10). Therefore, the surgeon can remove the syringe cover 500 from each of the containers 410, 420 while the syringe side attachment tool 100, the syringe connector 200, and each of the syringes 310, 320 are connected together, simply by operating the syringe cover 500.
[0093] The operator stirs the syringe side mounting tool 100, the syringe connector 200, and the containers 410, 420 from which the syringes 310, 320 have been removed, to dissolve or dilute the drug held in the containers 410, 420. After dissolving or diluting the drug held in the containers 410, 420, the operator can connect the containers 410, 420 to an applicator (not shown) using a predetermined attachment or the like.
[0094] [Effects] As described above, the syringe cover 500 of this embodiment has a cylindrical body 311, 321 that holds a liquid, and a plunger 312, 322 that can move in the axial direction of the cylindrical body 311, 321 when inserted into the cylindrical body 311, 321, and is a syringe cover 500 that can be attached to a syringe that holds a predetermined drug and is connected to a container 410, 420 into which the liquid is flowed, and has a main body portion 501 that covers at least the exposed portions of the plungers 312, 322 that are not exposed from the cylindrical body 311, 321.
[0095] With this configuration, when the syringes 310, 320 holding the liquid are connected to the containers 410, 420, at least the exposed parts of the plungers 312, 322 from the cylinders 311, 321 are covered by the main body 501. Therefore, during the connection operation, the plungers 312, 322 of the syringes 310, 320 do not come into contact with other surrounding members or with the fingers of the surgeon during operation. Therefore, the liquid held in the syringes 310, 320 is prevented from leaking due to unintended movement of the plungers 312, 322. As a result, the surgeon does not need to pay attention to the unintended movement of the plungers 312, 322 when operating the medical kit 1, and the workload is significantly reduced, and the liquid held in the syringes 310, 320 can be reliably injected into the containers 410, 420.
[0096] In addition, in the syringe cover 500 according to this embodiment, the main body 501 may be configured to cover at least a portion of the cylindrical bodies 311 and 321 as well.
[0097] With this configuration, main body 501 covers not only the exposed portions of plungers 312, 322 of syringes 310, 320 from barrels 311, 321 but also at least a portion of barrels 311, 321, making it easier to connect syringes 310, 320 to containers 410, 420.
[0098] In addition, in the syringe cover 500 according to this embodiment, the main body 501 may be configured to cover a plurality of syringes 310, 320 arranged in parallel.
[0099] With this configuration, multiple syringes 310, 320 can be connected to multiple containers 410, 420 at the same time, so that the liquids held in the multiple syringes 310, 320 can be simultaneously injected into each container 410, 420. For example, when using an application material composed of two or more types of drugs, two or more containers storing different drugs and syringes holding the liquids to be injected into each container are prepared, but even in such a case, the application material can be easily prepared.
[0100] In addition, in the syringe cover 500 according to this embodiment, the outer surface of the main body portion 501 may be configured to form a grip portion that is gripped when connecting the syringes 310, 320 and the containers 410, 420.
[0101] With this configuration, the surgeon can connect or disconnect the syringes 310, 320 to or from the containers 410, 420 while gripping the syringe covers 500 attached to the syringes 310, 320, making the operation easier.
[0102] In addition, in syringe cover 500 of this embodiment, main body 501 may be provided with a first housing 510 having an approximately rectangular parallelepiped shape having an open surface on one side through which syringes 310, 320 can be inserted and removed, a second housing 520 having an approximately rectangular parallelepiped shape having an open surface on one side through which syringes 310, 320 can be inserted and removed, and a hinge portion 530 that rotatably connects the ends of first housing 510 and second housing 520, and is configured to cover syringes 310, 320 in a closed state in which the end face on the open side of first housing 510 and the end face on the open side of second housing 520 are abutted.
[0103] With this configuration, the syringe cover 500 can be closed while housing the syringes 310, 320, thereby preventing the plungers 312, 322 of the syringes 310, 320 from contacting other surrounding members or the operator's fingers, etc. Even if the operator makes an incorrect connection operation when connecting the syringes 310, 320 to the containers 410, 420, the plungers 312, 322 of the syringes 310, 320 can be accessed by opening the syringe cover 500, so that the operator can operate the plungers 312, 322 themselves to inject the liquid held in the syringes 310, 320 into the containers 410, 420.
[0104] In addition, in the syringe cover 500 according to this embodiment, the hinge portion 530 may be configured to connect the upper end portion of the first housing 510 and the upper end portion of the second housing 520 together.
[0105] With this configuration, when attaching or detaching the syringe cover 500 in the closed state, the hinge portion 530 does not come into contact with the palm of the surgeon's hand, making it easy to grip.
[0106] Furthermore, syringe cover 500 according to this embodiment has housing portion 540 on the inner surface of main body 501 that houses and covers parts of barrels 311, 321 of syringes 310, 320 and parts of plungers 312, 322 exposed from barrels 311, 321.
[0107] With this configuration, when syringes 310, 320 are connected to containers 410, 420, the attitude of syringes 310, 320 can be stabilized and plungers 312, 322 can be prevented from contacting other surrounding members or the operator's fingers.
[0108] In addition, in the syringe cover 500 of this embodiment, the accommodating portion 540 may be configured as follows: a first accommodating portion 541 having a first recess 541a that accommodates the cylindrical bodies 311, 321 of the syringes 310, 320 while abutting against a portion of the cylindrical bodies 311, 321, and a plurality of first accommodating portions 541 arranged at a predetermined adjacent interval along the axial direction of the first housing 510 and the second housing 520; and a second accommodating portion 542 having a second recess 542a that accommodates the exposed portions of the plungers 312, 322 that are located on the base end side of the flange portions 311a, 321a provided on the base end side of the cylindrical bodies 311, 321 of the syringes 310, 320 by movably covering the plungers 312, 322.
[0109] With this configuration, the cylinders 311, 321 of the syringes 310, 320 are held in contact with the first housing portion 541, so that the attachment and detachment operations can be performed in a stable posture without any change in posture. Also, the exposed parts of the plungers 312, 322 of the syringes 310, 320 are covered by the second housing portion 542 so that the plungers 312, 322 are movable, so that the movement of the plungers 312, 322 during the connection operation is not hindered, and unintended movement due to contact with other surrounding members or the operator's fingers can be prevented.
[0110] In addition, in the syringe cover 500 according to this embodiment, the lower end of the main body 501 may be configured to have an engagement portion 590 that can be engaged with an engagement hole 150 provided in the syringe side mounting fixture 100 to which the nozzle portions 313, 323 of the syringes 320, 320 are connected.
[0111] With this configuration, the fitting portion 590 can be fitted into the fitting hole 150 of the syringe-side mounting tool 100, and the main body portion 501 can be attached to the syringe-side mounting tool 100. Therefore, the syringe cover 500 does not come off from the syringe-side mounting tool 100 when the syringes 310, 320 are detached from the containers 410, 420. Therefore, the surgeon can easily detach the syringes 310, 320 from the containers 410, 420 while holding the syringe cover 500.
[0112] Furthermore, in syringe cover 500 of this embodiment, fitting portion 590 is composed of fitting convex portion 591 provided at the lower end of first housing 510 so as to protrude toward the open surface, and fitting recess 592 provided at the lower end of second housing 520 at a position where it can fit with the tip of fitting convex portion 591 when first housing 510 and second housing 520 are in a closed state, and first housing 510 and second housing 520 may be configured to be attached to syringe side attachment 100 by fitting fitting convex portion 591 inserted into fitting hole 150 of syringe side attachment 100 and fitting recess 592.
[0113] With this configuration, when the first housing 510 and the second housing 520 are in a closed state, the first housing 510 and the second housing 520 can be attached to the syringe side attachment 100 by fitting the fitting protrusion 591 of the first housing 510 into the fitting hole 150 of the syringe side attachment 100 and fitting the fitting recess 592 of the second housing 520. Therefore, the syringe cover 500 does not come off from the syringe side attachment 100 when the syringes 310, 320 are detached from the containers 410, 420. Therefore, the operator can easily detach the syringes 310, 320 from the containers 410, 420 while holding the syringe cover 500.
[0114] Furthermore, in syringe cover 500 according to this embodiment, a configuration may be adopted in which a plurality of anti-slip projections 570 are provided on the outer surface of main body 501 along the axial direction.
[0115] With this configuration, when the surgeon grasps the syringe cover 500, a frictional force is generated between the protrusion 570 and the contact area with the surgeon's palm, etc., creating an anti-slip effect, making it easy to attach and remove the syringe cover.
[0116] In addition, in the syringe cover 500 of this embodiment, the main body portion 501 has a plurality of first hole portions 551 arranged along the axial direction, and second hole portions 552 arranged at locations where the flange portions 311a, 321a of the syringes 310, 320 are located, and the second hole portions 552 may be configured to have a larger opening area than the first hole portions 551.
[0117] With this configuration, when the syringe cover 500 is sterilized, a sterilizing medium having a sterilizing effect, such as ethylene oxide gas or high-pressure steam, can be sufficiently distributed inside the cover. [Explanation of symbols]
[0118] 1 medical kit, 100 Syringe side attachment, 150 fitting hole, 200 Syringe connector, 310, 320 first syringe, 311, 321: Cylinder (311a, 321a: Flange portion), 312, 322 Pushers, 313, 323 nozzle part, 410, 420 containers, 500 syringe cover (501 main body part), 510 1st cabinet, 520 2nd cabinet, 530 Hinge part, 540 Storage unit, 541 first storage portion (541a first recess, 541b boundary portion), 542 second storage portion (542a second recess, 542b boundary portion), 550 holes, 551 1st hole, 552 second hole portion (552a reinforcement portion), 560 engagement portion, 561 engagement hole, 562 Engagement claw, 570 protrusion, 580 extension, 590 Fitting part, 591 Fitting protrusion, 592 mating recess.
Claims
1. A cylinder holding a liquid; a pusher that is movable in an axial direction of the cylindrical body while being inserted into the cylindrical body; A syringe cover that can be attached to a syringe that holds a predetermined drug and is connected to a container into which the liquid flows, a main body portion for covering at least an exposed portion of the plunger from the cylindrical body; A syringe cover, wherein an outer surface of the main body portion constitutes a gripping portion that is gripped when connecting the syringe and the container.
2. The syringe cover of claim 1 , wherein the body portion also covers at least a portion of the barrel.
3. The syringe cover according to claim 1 , wherein the main body portion covers a plurality of the syringes arranged in parallel.
4. The main body portion is a first housing having a generally rectangular parallelepiped shape and an open surface through which the syringe can be inserted and removed; a second housing having a generally rectangular parallelepiped shape and having an open surface through which the syringe can be inserted and removed; a hinge portion that rotatably connects ends of the first housing and the second housing to each other; Equipped with A syringe cover as described in any one of claims 1 to 3, which covers at least a portion of the syringe in a closed state in which an end face of the open side of the first housing and an end face of the open side of the second housing are abutted against each other.
5. The syringe cover according to claim 4 , wherein the hinge portion is provided to connect an upper end of the first housing and an upper end of the second housing.
6. The syringe cover according to claim 4 or 5, wherein an inner surface of the main body has accommodation portions that accommodate and cover a part of the cylindrical body of the syringe and a part of the exposed part of the plunger from the cylindrical body.
7. The storage section includes: a first housing portion including a first recess that houses the cylindrical body of the syringe in a state of contacting a part of the cylindrical body, the first housing portion being disposed at a predetermined adjacent interval along an axial direction of the first housing and the second housing; a second recess for movably covering and housing the exposed portion of the pusher located on the base end side of a flange portion provided on the base end side of the cylindrical body of the syringe, the second housing being disposed at a predetermined adjacent interval along the axial direction of the first housing and the second housing; The syringe cover according to claim 6, comprising:
8. A syringe-side attachment device having a connection part connected to a nozzle part of the syringe and a fitting hole exposed above the connection part, the syringe-side attachment device being attached to the tip side of the syringe; A syringe cover as described in any one of claims 4 to 7, wherein a fitting portion is provided at a lower end of the main body portion opposite the hinge portion, which fits into the fitting hole when the first housing and the second housing of the main body portion are in a closed state.
9. The fitting portion is a fitting protrusion provided at a lower end of the first housing so as to protrude toward the open surface; a fitting recess provided at a lower end of the second housing at a position where the fitting recess can be fitted into a tip of the fitting protrusion when the first housing and the second housing are in a closed state, The syringe cover according to claim 8, wherein the first housing and the second housing are attached to the syringe side attachment device by engaging the mating convex portion inserted into the mating hole of the syringe side attachment device with the mating concave portion.
10. The syringe cover according to any one of claims 1 to 9, wherein a plurality of anti-slip projections are provided on an outer surface of the main body along the axial direction.
11. The main body portion has a plurality of first holes arranged along an axial direction, A second hole portion is disposed at a location where the flange portion of the syringe is located, The syringe cover according to any one of claims 1 to 10, wherein the second hole portion has an opening area larger than that of the first hole portion.
Citation Information
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