Adjustable subcutaneous water injection device

Abstract

The utility model relates to the field of medical auxiliary instruments. The adjustable subcutaneous water injection device comprises a positioning plate, and an operation opening used for injection is formed in the positioning plate; the positioning plate is provided with a guide rail for guiding an injection needle to be obliquely inserted; the injection mechanism comprises a mounting seat, and a guide groove in sliding connection with the guide rail is formed in the bottom of the mounting seat; a flow guide channel is formed in the mounting seat, at least two injection ports in butt joint with the flow guide channel are formed in the mounting seat, and the injection ports are detachably connected with injection needles or plugs; the mounting base is provided with an injection port used for being in butt joint with the flow guide channel; the injection mechanism further comprises an infusion mechanism used for being in butt joint with the injection opening of the installation base. The infusion mechanism is an injector or an infusion bag; the infusion mechanism further comprises an extrusion mechanism used for pressurizing the infusion bag. According to the utility model, the injector and the infusion bag are switched for use, so that the requirements of different injection amounts can be met.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a water injection device. Background Technology

[0002] In burn or skin grafting surgery, the surgeon needs to inject tumescent fluid subcutaneously into the donor site to facilitate skin graft harvesting. For small to medium-sized burn skin grafting, the injection volume is approximately 500ml-1000ml, while for large-area burn skin grafting, the injection volume can reach 1000ml-2000ml or even more. Currently, during surgery, a 10-20ml syringe is often used to manually inject the fluid subcutaneously. The entire process requires repeatedly drawing and injecting the fluid into the subcutaneous tissue, which is inefficient, prolongs the operation time, and increases the risks associated with anesthesia and surgery. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model provides an adjustable subcutaneous water injection device, which has solved at least one of the above-mentioned technical problems.

[0004] The technical solution of this utility model is: an adjustable subcutaneous water injection device, characterized in that it includes a positioning plate, and the positioning plate is provided with an operation port for injection;

[0005] The positioning plate is provided with a guide rail for guiding the injection needle to be inserted at an angle;

[0006] It also includes an injection mechanism, which includes a mounting base, the bottom of which is provided with a guide groove that is slidably connected to the guide rail;

[0007] The mounting base is provided with a flow channel and an injection port that connects to the flow channel. There are at least two injection ports, and each injection port can be detachably connected to an injection needle or sealed.

[0008] The mounting base is provided with an injection port for connecting to the flow channel;

[0009] The injection mechanism also includes an infusion mechanism for docking with the injection port of the mounting base;

[0010] The infusion device is a syringe or an infusion bag;

[0011] The infusion mechanism also includes a squeezing mechanism for pressurizing the infusion bag. The squeezing mechanism is equipped with a fixing frame for suspending the infusion bag. The fixing frame is equipped with a push plate mechanism for squeezing the infusion bag. The infusion bag is connected to the injection port through a conduit.

[0012] This invention facilitates the use of a syringe and an infusion bag to meet different injection volume requirements. A positioning plate allows for pre-positioning of the syringe injection site, and a guide rail guides the insertion, controlling the injection depth. The ability to switch between a plug and an injection needle allows for adjustment of the number of needles according to the required injection area.

[0013] More preferably, the push plate mechanism includes a telescopic cylinder and a push plate, the telescopic cylinder is mounted on the fixed frame, and the telescopic rod of the telescopic cylinder is connected to the push plate;

[0014] The fixing frame is slidably connected to the push plate;

[0015] A fixing plate is fixed on the fixing frame, and the infusion bag is clamped between the fixing plate and the push plate.

[0016] The linear movement of the push plate facilitates the squeezing of the infusion bag, thereby enabling injection.

[0017] More preferably, the guide rail is inclined downward from the side away from the operating port to the side adjacent to the operating port, and the guide rail is provided with a limiting protrusion for abutting against the mounting base on the side adjacent to the operating port.

[0018] It facilitates limiting the injection depth.

[0019] More preferably, a locking screw is threaded onto the mounting base, and the locking screw abuts against the guide rail.

[0020] It facilitates locking after the mounting base slides into place.

[0021] More preferably, the positioning plate includes a main board and an auxiliary board;

[0022] The main board has a U-shaped notch, and the auxiliary plate is used to seal the opening end of the U-shaped notch;

[0023] The auxiliary board and the main board are slidably connected to form the operation port.

[0024] It facilitates the adjustment of the size of the operating port opening.

[0025] More preferably, the positioning plate further includes movable plates arranged on the left and right, and the movable plates are slidably connected to the auxiliary plate.

[0026] It facilitates the adjustment of the size of the operating port opening.

[0027] More preferably, the positioning plate is arc-shaped.

[0028] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0029] This invention facilitates the use of a syringe and an infusion bag to meet different injection volume requirements. A positioning plate allows for pre-positioning of the syringe injection site, and a guide rail guides the insertion, controlling the injection depth. The ability to switch between a plug and an injection needle allows for adjustment of the number of needles according to the required injection area. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a structure for connecting a syringe according to a specific embodiment 1 of this utility model;

[0031] Figure 2 This is a schematic diagram of a structure for connecting an infusion bag according to a specific embodiment 1 of this utility model;

[0032] Figure 3 This is a schematic diagram of the positioning plate in specific embodiment 1 of this utility model;

[0033] Figure 4 This is a schematic diagram of the mounting base of a specific embodiment 1 of the present utility model;

[0034] Figure 5 This is a cross-sectional view of the mounting plate in specific embodiment 1 of this utility model;

[0035] Figure 6 This is a schematic diagram of the positioning plate in specific embodiment 2 of this utility model.

[0036] In the diagram, 1 is the positioning plate, 11 is the operating port, 12 is the guide rail, 13 is the limiting protrusion, 2 is the mounting base, 3 is the injection needle, 4 is the syringe, 5 is the infusion bag, 6 is the fixing frame, 7 is the telescopic cylinder, and 8 is the push plate. Detailed Implementation

[0037] See Figures 1 to 5Specific embodiment 1, an adjustable subcutaneous infusion device, includes a positioning plate 1 with an injection port 11; a guide rail 12 for guiding the injection needle 3 to enter at an angle on the positioning plate 1; and an injection mechanism, including a mounting base 2 with a guide groove 21 slidably connected to the guide rail 12 at the bottom of the mounting base 2; a flow channel on the mounting base 2, and an injection port for docking with the flow channel, with at least two injection ports, which can be detachably connected to the injection needle 3 or sealed; an injection port on the mounting base 2 for docking with the flow channel; the injection mechanism also includes an infusion mechanism for docking with the injection port of the mounting base; the infusion mechanism is a syringe 4 or an infusion bag 5; the infusion mechanism also includes a squeezing mechanism for pressurizing the infusion bag 5, with a fixing frame 6 for suspending the infusion bag 5 on the squeezing mechanism, and a push plate mechanism for squeezing the infusion bag 5 installed on the fixing frame 6, the infusion bag 5 being connected to the injection port through a conduit. This invention facilitates the use of a syringe 4 and an infusion bag 5 to meet different injection volume requirements. The positioning plate 1 facilitates pre-positioning of the syringe 4 at the injection site, and the guide rail guides the insertion, controlling the injection depth. The interchangeable use of a plug and injection needle 3 allows for adjustment of the number of injection needles 3 according to the required injection area. The number of injection ports can be 3-10. The injection ports are angled downwards from the side furthest from the operating port to the side adjacent to the operating port. This allows for a tilted syringe configuration to align with the injection ports.

[0038] The push plate mechanism includes a telescopic cylinder 7 and a push plate 8. The telescopic cylinder 7 is mounted on a fixed frame 6, and the telescopic rod of the telescopic cylinder 7 is connected to the push plate 8. The fixed frame 6 is slidably connected to the push plate 8. A fixed plate is fixed on the fixed frame 6, and the infusion bag 5 is clamped between the fixed plate and the push plate 8. This allows the infusion bag 5 to be squeezed through the linear movement of the push plate 8, thereby achieving injection.

[0039] The guide rail 12 is inclined downward from the side away from the operating port 11 to the side adjacent to the operating port 11, and a limiting protrusion 13 for abutting against the mounting base is provided on the side of the guide rail adjacent to the operating port 11. This facilitates limiting the injection depth.

[0040] The mounting base has a threaded connection with a locking screw that abuts against the guide rail. This facilitates locking the mounting base after it has slid into place.

[0041] See Figure 6 In specific embodiment 2, based on specific embodiment 1, the positioning plate 1 includes a main board 15 and an auxiliary board 14; the main board 15 has a U-shaped notch, and the auxiliary board 14 is used to seal the opening end of the U-shaped notch; the auxiliary board 14 and the main board 15 are slidably connected to form an operating port 11. This facilitates the adjustment of the opening size of the operating port 11. Sliding grooves are provided on the left and right sides of the main board to slidably connect the left and right sides of the auxiliary board.

[0042] In specific embodiment 3, based on specific embodiment 2, the positioning plate further includes movable plates arranged on the left and right sides, which are slidably connected to the auxiliary plate. This facilitates adjustment of the size of the operating port opening. The positioning plate is arc-shaped.

[0043] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An adjustable subcutaneous water injection device, characterized in that, It includes a positioning plate, wherein the positioning plate has an operating port for injection; The positioning plate is provided with a guide rail for guiding the injection needle to enter at an angle; It also includes an injection mechanism, which includes a mounting base, the bottom of which is provided with a guide groove that is slidably connected to the guide rail; The mounting base is provided with a flow channel and an injection port that connects to the flow channel. There are at least two injection ports, and each injection port can be detachably connected to an injection needle or sealed. The mounting base is provided with an injection port for connecting to the flow channel; The injection mechanism also includes an infusion mechanism for docking with the injection port of the mounting base; The infusion device is a syringe or an infusion bag; The infusion mechanism also includes a squeezing mechanism for pressurizing the infusion bag. The squeezing mechanism is provided with a fixing frame for suspending the infusion bag. A push plate mechanism for squeezing the infusion bag is installed on the fixing frame. The infusion bag is connected to the injection port through a conduit. The guide rail is inclined downward from the side away from the operating port to the side adjacent to the operating port, and the guide rail is provided with a limiting protrusion for abutting against the mounting base on the side adjacent to the operating port. A locking screw is threaded onto the mounting base, and the locking screw abuts against the guide rail.

2. The adjustable subcutaneous water injection device according to claim 1, characterized in that: The push plate mechanism includes a telescopic cylinder and a push plate. The telescopic cylinder is mounted on the fixed frame, and the telescopic rod of the telescopic cylinder is connected to the push plate. The fixing frame is slidably connected to the push plate; A fixing plate is fixed on the fixing frame, and the infusion bag is clamped between the fixing plate and the push plate.

3. The adjustable subcutaneous water injection device according to claim 1, characterized in that: The positioning plate includes a main board and an auxiliary board; The main board has a U-shaped notch, and the auxiliary plate is used to seal the opening end of the U-shaped notch; The auxiliary board and the main board are slidably connected to form the operation port.

4. The adjustable subcutaneous water injection device according to claim 3, characterized in that: The positioning plate also includes movable plates arranged on the left and right, and the movable plates are slidably connected to the auxiliary plate.

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