Internal medicine clinical feeder

Abstract

The clinical feeder comprises a main body, a piston assembly and a switching mechanism, the main body comprises a syringe and a cover detachably connected to the top of the syringe, and the piston assembly comprises a piston arranged on the inner side of the syringe in a sliding mode and a threaded rod which is rotationally connected to the top of the piston and is in a rectangular tooth shape; the switching mechanism comprises a switching block arranged above the cover in a sliding mode, a spring arranged on the side, back to the threaded rod, of the switching block and used for making the switching block elastically abut against the threaded rod, and a pressing block arranged on the side, close to the threaded rod, of the switching block and used for pressing the switching block. The device has the advantages that when the device is used, the using method of the device can be switched by pressing the pressing block, the piston can be directly pushed through the threaded rod or spirally pushed through the threaded rod, when liquid food is sucked, the piston can be directly pulled upwards through the threaded rod to extract the liquid food, and the device is simple and convenient to use; and the feeding speed can be controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to feeding device technical field especially relates to a clinical feeding device of internal medicine. BACKGROUND

[0002] The clinical feeding device of internal medicine is a feeding tool, mainly used for satisfying the nutritional needs of patients who cannot eat independently due to diseases or treatment, and the spiral propelling feeding device is a common clinical feeding device of internal medicine.

[0003] The current spiral propelling feeding device is mainly composed of an injection cylinder, a piston assembly and a spiral propelling rod. The piston assembly is slidingly arranged inside the injection cylinder, the spiral propelling rod is rotationally connected with the piston assembly and threadedly cooperates with the injection cylinder. When in use, the spiral propelling rod can be manually rotated to drive the piston to displace in the injection cylinder, so as to smoothly inject liquid food into the gastric tube. Compared with the traditional direct pushing feeding device, this design enables the feeding personnel to more accurately control the feeding speed. However, the feeding personnel also needs to frequently rotate the spiral propelling rod during the process of sucking the liquid food into the injection cylinder, which is time-consuming and laborious.

[0004] In view of the above problems of the clinical feeding device of internal medicine, the utility model is proposed. SUMMARY

[0005] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the above problems of the clinical feeding device of internal medicine, the utility model is proposed.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: a clinical feeding device of internal medicine, comprising: a main body, a piston assembly and a switching mechanism;

[0008] The main body comprises an injection cylinder and a lid detachably connected to the top of the injection cylinder.

[0009] The piston assembly comprises a piston slidingly arranged inside the injection cylinder, a threaded rod rotationally connected to the top of the piston and having a rectangular tooth profile, and the lid is provided with an opening hole through which the threaded rod passes at a position opposite to the threaded rod, and the threaded rod vertically passes through the opening hole.

[0010] The switching mechanism comprises a switching block slidingly arranged above the cover, a spring arranged on one side of the switching block away from the threaded rod for elastically abutting the switching block against the threaded rod, and a pressing block arranged on one side of the switching block close to the threaded rod for pressing the switching block, and the one side of the switching block close to the threaded rod is provided with an incomplete thread groove matched with the threaded rod, and the switching block is threadedly connected with the threaded rod through the incomplete thread groove.

[0011] As a preferred scheme of the internal medicine clinical feeding device, the top of the cover is fixedly connected with a shell, the inner side of the shell is provided with a sliding groove for the switching block to slide, the switching block is slidingly arranged in the sliding groove, the two ends of the spring are respectively abutted against the groove wall of the sliding groove and the switching block, two groups of connecting columns are arranged between the switching block and the pressing block, the two ends of the two groups of connecting columns are respectively fixedly connected with the switching block and the pressing block, the position of the shell opposite to the pressing block is provided with an opening matched with the pressing block, and the pressing block passes through the opening.

[0012] As a preferred scheme of the internal medicine clinical feeding device, the side wall of the switching block is provided with a mounting groove, the inner side of the mounting groove is fixedly connected with a positioning bead, the side wall of the shell is provided with a positioning hole matched with the positioning bead, and when the positioning bead is clamped into the positioning hole, the switching block is separated from the threaded rod.

[0013] As a preferred scheme of the internal medicine clinical feeding device, the tooth top edge of the incomplete thread groove is provided with a chamfer.

[0014] As a preferred scheme of the internal medicine clinical feeding device, the top of the threaded rod is fixedly connected with a knob, and the knob is arranged in line with the axis of the threaded rod.

[0015] The internal medicine clinical feeding device has the advantages that the switching mechanism is matched with the threaded rod, the device can switch the use method of the device by pressing the pressing block during use, the piston can be directly pushed by the threaded rod or the piston can be spirally pushed by the threaded rod, the liquid food can be directly drawn by the threaded rod when the liquid food is sucked, the feeding speed can be controlled by spirally pushing the liquid food by the threaded rod, and the device is flexible to use. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1The utility model discloses a three -dimensional structure schematic diagram of internal medicine clinical feeding device.

[0018] Figure 2 The utility model discloses Figure 1 The structure amplification diagram of area A in the middle.

[0019] Figure 3 The utility model discloses a vertical section structure schematic diagram of internal medicine clinical feeding device.

[0020] Figure 4 The utility model discloses a transverse section structure schematic diagram of internal medicine clinical feeding device.

[0021] Figure 5 The utility model discloses a three -dimensional structure schematic diagram of internal medicine clinical feeding device.

[0022] BRIEF DESCRIPTION OF DRAWINGS:100, main body;101, syringe;102, cover;200, piston assembly;201, piston;202, threaded rod;203, knob;300, switching mechanism;301, switching block;302, spring;303, pressing block;304, shell;304a, positioning hole;305, connecting column;306, positioning bead. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, easy to understand, the specific implementation of the utility model is explained in detail below with the drawings in the specification.

[0024] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, and those skilled in the art can make similar generalization without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0025] Secondly, "one embodiment" or "embodiment" referred to here means that specific features, structures or characteristics can be included in at least one implementation of the utility model. "In one embodiment" does not mean the same embodiment in different places in this specification, and is not an independent or selective embodiment that excludes other embodiments.

[0026] Thirdly, the utility model is described in detail in conjunction with the schematic diagram, and when the embodiments of the utility model are described in detail, the sectional view of the device structure will be partially enlarged without general proportion for convenience, and the schematic diagram is only an example, which should not limit the scope of protection of the utility model here. In addition, three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0027] Refer to Figures 1-5For an embodiment of the utility model, provide a kind of clinical feeding device of internal medicine, it includes: main body 100, piston assembly 200 and switching mechanism 300.

[0028] As Figure 1 Shown, main body 100 includes injection cylinder 101, detachably connected in the top of injection cylinder 101 cover 102, detachable cover 102 can be conveniently subsequent to the inside of injection cylinder 101 is cleaned up;

[0029] Specifically, as Figure 3 Shown, cover 102 inside has internal thread, the outside top of injection cylinder 101 has the external thread matched with cover 102 thread, and injection cylinder 101 is detachably connected with cover 102 by thread.

[0030] As Figure 3 Shown, piston assembly 200 includes piston 201 that is slidably arranged in the inside of injection cylinder 101, threaded rod 202 that is rotationally connected in the top of piston 201 and tooth type is rectangle, and the tooth type of rectangle screw thread makes that the contact area formed by its tooth side and tooth is relatively small, so, when transmitting strength, the radial force generated is also relatively small, and the position of cover 102 opposite threaded rod 202 is provided with the aperture for threaded rod 202 to pass through, and threaded rod 202 vertically passes through the aperture.

[0031] As Figures 3 to 5 Shown, switching mechanism 300 includes switching block 301 that is slidably arranged above cover 102, spring 302 that is arranged in the side of switching block 301 for making switching block 301 elastic resistance tightly threaded rod 202, pressing block 303 that is arranged in the side of switching block 301 for pressing switching block 301, and the side of switching block 301 close to threaded rod 202 is provided with the incomplete thread groove matched with threaded rod 202, and the tooth shape of this incomplete thread groove is also rectangle, because the radial force generated is relatively small when transmitting strength by this tooth shape, so switching block 301 can be prevented from sliding, and switching block 301 is threadedly connected with threaded rod 202 by the incomplete thread groove, when switching block 301 is threadedly connected with threaded rod 202, threaded rod 202 can only screw advance piston 201 at this time, benefit stable control feeding speed, by pressing pressing block 303, make switching block 301 separate from threaded rod 202, can make threaded rod 202 can directly push and pull piston 201, to facilitate suction food.

[0032] As Figures 1 to 3As shown, the top of the cover 102 is fixedly connected with a shell 304, a sliding groove is formed in the inner side of the shell 304 for sliding of the switching block 301, the switching block 301 is slidingly arranged in the sliding groove, the spring 302 has two ends respectively abutting against the groove wall of the sliding groove and the switching block 301, two groups of connecting columns 305 are arranged between the switching block 301 and the pressing block 303, the two groups of connecting columns 305 have two ends respectively fixedly connected with the switching block 301 and the pressing block 303, and an opening matched with the pressing block 303 is formed in the position of the shell 304 opposite to the pressing block 303, and the pressing block 303 passes through the opening.

[0033] As shown in Figure 2 , Figure 3 and Figure 5 , the side wall of the switching block 301 is provided with a mounting groove, and a positioning bead 306 is fixedly connected to the inner side of the mounting groove. The positioning bead 306, also known as a ball head plunger or spring plunger, is a load device composed of a shell, a spring, a ball bead or a column body, and is an element for providing pressure and accurate positioning. This is prior art and will not be described in detail. The side wall of the shell 304 is provided with a positioning hole 304a matched with the positioning bead 306. When the positioning bead 306 is clamped into the positioning hole 304a, the switching block 301 is separated from the threaded rod 202.

[0034] As shown in Figure 5 , the tooth top edge of the incomplete thread groove is provided with a chamfer, which plays a guiding role and facilitates the thread of the threaded rod 202 to be clamped into the incomplete thread groove.

[0035] As shown in Figure 3 , the top of the threaded rod 202 is fixedly connected with a knob 203, and the knob 203 is used to facilitate rotation of the threaded rod 202. The knob 203 is coaxially arranged with the axis of the threaded rod 202. Here, the coaxial arrangement is to avoid the left and right fluctuations when the knob 203 is rotated, so as to improve the stability of the device.

[0036] Working principle: when sucking the liquid food, press the pressing block 303, the pressing block 303 pushes the switching block 301 to separate from the threaded rod 202 through the two groups of connecting columns 305. When the bead body of the positioning bead 306 is clamped into the positioning hole 304a, a clear click sound can be heard at this time, and the pressing difficulty increases. At this time, the pressing block 303 is released, the position of the switching block 301 is fixed, and since the pressing block 303 is separated from the threaded rod 202, the threaded rod 202 can push the piston 201 up and down, pull the threaded rod 202 upwards, pull the piston 201 upwards, and suck the liquid food into the syringe 101;

[0037] When feeding, the bead of the positioning bead 306 is pressed to make the bead of the positioning bead 306 disengage from the positioning hole 304a, at this time the spring 302 pushes the switching block 301 to abut against the threaded rod 202, at this time the thread of the threaded rod 202 can not be clamped into the incomplete thread groove, the threaded rod 202 is rotated, when the thread of the threaded rod 202 matches the incomplete thread groove, the switching block 301 is threadedly connected with the threaded rod 202 under the pushing of the spring 302, at this time the threaded rod 202 cannot be pushed and pulled, but only can be spirally rotated, the threaded rod 202 is rotated to make the threaded rod 202 push the piston 201 to move downward along the injection cylinder 101, that is, the liquid food in the injection cylinder 101 can be pushed out.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A medical clinical feeding device, characterized in that, The utility model relates to a syringe, which comprises a main body (100), a piston assembly (200) and a switching mechanism (300). The main body (100) comprises a syringe barrel (101) and a cover (102) detachably connected to the top of the syringe barrel (101). The piston assembly (200) comprises a piston (201) slidingly arranged inside the syringe barrel (101), a threaded rod (202) with a rectangular tooth profile rotatably connected to the top of the piston (201), and an opening is formed in the cover (102) opposite the position of the threaded rod (202) to allow the threaded rod (202) to pass through, and the threaded rod (202) vertically passes through the opening. The switching mechanism (300) comprises a switching block (301) slidingly arranged above the cover (102), a spring (302) arranged on the side of the switching block (301) opposite the threaded rod (202) to elastically abut the switching block (301) against the threaded rod (202), and a pressing block (303) arranged on the side of the switching block (301) close to the threaded rod (202) to press the switching block (301), and an incomplete thread groove matching the threaded rod (202) is formed in the side of the switching block (301) close to the threaded rod (202), and the switching block (301) is threadedly connected with the threaded rod (202) through the incomplete thread groove. The top of the cover (102) is fixedly connected with a shell (304), an inner side of the shell (304) is provided with a sliding groove allowing the switching block (301) to slide, the switching block (301) is slidingly arranged in the sliding groove, the spring (302) is in abutment with the sliding groove groove wall and the switching block (301) at both ends, respectively, two groups of connecting columns (305) are arranged between the switching block (301) and the pressing block (303), both ends of the two groups of connecting columns (305) are fixedly connected with the switching block (301) and the pressing block (303), respectively, an opening matching the pressing block (303) is formed in the shell (304) opposite the pressing block (303), and the pressing block (303) passes through the opening.

2. The medical clinical feeding device according to claim 1, characterized in that: An installation groove is formed in the side wall of the switching block (301), a positioning bead (306) is fixedly connected to the inner side of the installation groove, a positioning hole (304a) is formed in the side wall of the shell (304) matched with the positioning bead (306), and when the positioning bead (306) is clamped into the positioning hole (304a), the switching block (301) is separated from the threaded rod (202).

3. The medical clinical feeding device according to claim 2, characterized in that: The tooth crest edge of the incomplete thread groove is provided with a chamfer.

4. The clinical feeding set according to claim 2 or 3, characterized in that: A knob (203) is fixedly connected to the top of the threaded rod (202), and the knob (203) is arranged in line with the axis of the threaded rod (202).

5. The medical clinical feeding device according to claim 1, characterized in that: ​

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