CN210330819U

CN210330819U - Animal intracutaneous injection device and injection aid thereof

Info

Publication number: CN210330819U
Application number: CN201920817619.XU
Authority: CN
Inventors: 肖正中; 吴柱月; 周晓情
Original assignee: Guangxi Zhuang Autonomous Region Institute of Animal Husbandry
Current assignee: Guangxi Zhuang Autonomous Region Institute of Animal Husbandry
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-17
Anticipated expiration: 2029-05-31

Abstract

The utility model provides an animal intradermal injection assistor, which comprises a shell, a positioning block, a skin fixing clamp, a movable handle and a driving medium. The positioning block is arranged on the shell and is provided with a guide hole for the needle head of the syringe to pass through; the skin fixing clamp comprises an adjusting clamping piece, a movable clamping piece and a position adjusting piece, wherein the adjusting clamping piece and the movable clamping piece are both arranged on the shell, and the position adjusting piece is used for adjusting the distance between the adjusting clamping piece and the guide hole; the movable handle is rotatably arranged on the shell, a pressing part is arranged on the movable handle, the transmission part is rotatably arranged on the shell, and two opposite ends of the transmission part can be respectively matched with the pressing part and the movable clamping piece so as to drive the movable clamping piece to move towards the adjusting clamping piece when the movable handle rotates, thereby clamping the skin of the animal. The animal intradermal injection auxiliary device can improve the success rate of animal intradermal injection. The utility model also provides an animal intradermal injection device adopting the animal intradermal injection auxiliary device.

Description

Animal intracutaneous injection device and injection aid thereof

Technical Field

The utility model relates to an animal is utensil for intradermal injection, concretely relates to animal intradermal injection device and injection assistor thereof.

Background

In cattle breeding, particularly in cow breeding, tuberculosis skin test drug injection is required to be carried out on cattle in the whole field twice every year so as to detect whether tuberculosis exists in the cattle group. When in injection, the skin at the cow neck side is pinched by the left hand, the syringe needle is accurately positioned in the cow leather layer by the right hand, and the needle is inserted along the direction approximately parallel to the skin to inject a preset amount of medicine, so that a bulge with the size of soybean is formed in the skin, and the bulge is successful after the needle is pulled out without disappearance. In the process of pinching the skin on the cow neck side, the cow struggles, so that the needle is difficult to position on the cow skin, and the condition that the needle pierces the skin to cause injection failure easily occurs, thereby requiring multiple injections. Therefore, the injection is highly demanding for the operator, and only a few professional veterinarians are skilled to operate, which causes great difficulty in production.

In addition, the prior art generally adopts a continuous syringe to inject the tuberculosis skin test drugs into the cattle, and the continuous syringe generally comprises an injection tube, a piston arranged in the injection tube, a push rod connected with the piston and a drug supply bottle arranged on the injection tube. The liquid medicine of injection gets into the injection tube from supplying the medicine bottle, drives the piston through the push rod and moves towards the syringe needle to in injecting the liquid medicine into the animal body, it has following problem in actual operation: 1. when the continuous injector is used, the amount of injected liquid medicine is controlled through the moving distance of the push rod, high concentration is required to be kept during each injection, the moving speed of the push rod cannot be too high, otherwise, the push rod cannot be moved to the right position easily, the amount of liquid medicine injected each time is difficult to control accurately, and fatigue is easily caused; when the continuous injector is used, the push rod is rotated to drive the piston to move, so that the probability of excessive injected liquid medicine amount caused by too fast movement of the push rod can be reduced, however, the injection time is prolonged, animals struggle in the actual operation process, and the difficulty of injection is undoubtedly increased due to the prolongation of the injection time; 2. in the continuous injector in the prior art, the amount of liquid medicine in the injection cylinder is often larger than the amount of liquid medicine required by one-time injection, and when the injection is completed, the liquid medicine in the injection cylinder is usually remained, so that the waste of liquid medicine resources is caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of above-mentioned technical problem at least, provide an animal intradermal injection device, it can improve the success rate of intradermal injection.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

the utility model provides an animal intradermal injection device, includes the syringe, the syringe includes the syringe, installs in the piston of syringe and with the push rod of piston connection, animal intradermal injection device still includes animal intradermal injection assistor, animal intradermal injection assistor includes:

a housing;

the syringe fixing seat is arranged on the shell and can move along a first direction under the action of force, the first direction is parallel to the movement direction of the push rod, and the syringe is arranged on the syringe fixing seat;

the positioning block is arranged on the shell and is internally provided with a guide hole for the needle head of the syringe to pass through along the first direction;

the skin fixing clamp and the injector fixing seat are respectively positioned on two opposite sides of the positioning block, the skin fixing clamp comprises an adjusting clamping piece, a movable clamping piece and a position adjusting piece, the adjusting clamping piece and the movable clamping piece are arranged on the shell at intervals along a second direction perpendicular to the first direction and can be stressed to slide relative to the shell, a clamping space for placing animal skin is defined between the adjusting clamping piece and the movable clamping piece, and the position adjusting piece is arranged on the shell and connected with the adjusting clamping piece to drive the adjusting clamping piece to move along the second direction so as to adjust the distance between the adjusting clamping piece and the guide hole;

the movable handle is rotationally arranged on the shell through a pivot part, a pressing piece, a first pushing piece and a second pushing piece are arranged on the movable handle at intervals, the pressing piece, the first pushing piece and the second pushing piece are all located on the same side of the pivot part and gradually far away from the pivot part, and when the movable handle rotates, the first pushing piece can push the injector fixing seat to move towards the positioning block to insert a needle, and the second pushing piece can push a push rod of the injector to inject the needle; and

the transmission part is rotatably arranged on the shell, and two opposite ends of the transmission part can be respectively matched with the pressing part and the movable clamping piece so as to drive the movable clamping piece to move towards the adjusting clamping piece when the movable handle rotates, so that the skin of the animal is clamped.

Furthermore, the injection tube comprises an embedded tube and an outer sleeve which are coaxially arranged, a first port and a second port which are communicated with the inner cavity of the embedded tube are respectively arranged at two opposite ends of the embedded tube, and the first port is used for mounting a needle head; the piston is arranged in the embedded cylinder in a sliding manner and is in sealing contact with the inner peripheral wall of the embedded cylinder; the push rod is parallel to the injection cylinder, one end of the push rod enters the embedded cylinder through the second port to be connected with the piston, and the other end of the push rod penetrates through the outer sleeve; the push rod is further in threaded connection with the outer sleeve; the inner diameter of the outer sleeve is larger than that of the embedded cylinder; the embedded cylinder is arranged on the injector fixing seat; the injector also comprises an injector spring, the injector spring is arranged in parallel with the outer sleeve, and two opposite ends of the injector spring are respectively connected with the outer sleeve and the embedded cylinder; the push rod is pushed to drive the piston to move to the first port of the embedded cylinder along the embedded cylinder.

Furthermore, a medicine inlet is formed in the peripheral wall of the embedded cylinder in a penetrating manner, the medicine inlet is arranged close to the first port and communicated with the inner cavity of the embedded cylinder, and a one-way valve is arranged at the medicine inlet; the distance from one end of the outer sleeve close to the first port to the medicine inlet is larger than the maximum distance from the piston to the first port.

Furthermore, the adjusting clamping piece is provided with a bulge avoiding hole in a penetrating manner.

Furthermore, the position adjusting piece comprises an adjusting screw and an elastic piece, the adjusting screw is parallel to the second direction, the adjusting screw is in threaded connection with the shell, and one end of the adjusting screw can prop against the side surface of the adjusting clamping piece, which is back to the movable clamping piece; the elastic piece is sleeved outside the adjusting screw rod, and two opposite ends of the elastic piece are respectively connected with the shell and the adjusting clamping piece.

Furthermore, a guide rod parallel to the second direction is arranged on the shell, a guide hole is formed in the injector fixing seat in a penetrating mode along the second direction, and the guide rod penetrates through the guide hole in a sliding mode; the animal intradermal injection assistor further comprises a resetting piece, wherein the resetting piece is sleeved on the guide rod, and two opposite ends of the resetting piece are respectively connected with the shell and the injector fixing seat.

Furthermore, the transmission part is connected with the shell through a connecting shaft, the connecting shaft is further sleeved with a torsional spring, and two tail ends of the torsional spring are respectively connected with the shell and the transmission part.

Furthermore, the movable clamping piece is connected with the shell through a return spring.

The utility model also provides an animal intradermal injection assistor, include:

a housing;

the positioning block is arranged on the shell and is provided with a guide hole for a needle head of an injector to pass through along a first direction;

the skin fixing clamp comprises an adjusting clamping piece, a movable clamping piece and a position adjusting piece, wherein the adjusting clamping piece and the movable clamping piece are arranged on the shell at intervals along a second direction perpendicular to the first direction and can be stressed to slide relative to the shell, a clamping space for placing animal skin is defined between the adjusting clamping piece and the movable clamping piece, and the position adjusting piece is arranged on the shell and connected with the adjusting clamping piece so as to drive the adjusting clamping piece to move along the second direction and further adjust the distance between the adjusting clamping piece and the guide hole;

the movable handle is rotatably arranged on the shell through a pivoting part, and a pressing part is arranged on the movable handle; and

the transmission part is rotatably arranged on the shell, and two opposite ends of the transmission part can be respectively matched with the pressing part and the movable clamping piece so as to drive the movable clamping piece to move towards the adjusting clamping piece when the movable handle rotates.

Furthermore, the animal intradermal injection aid also comprises a syringe fixing seat used for installing a syringe, wherein the syringe fixing seat is arranged on the shell and can move along the first direction under the force; the movable handle is also provided with a first pushing piece and a second pushing piece, the pressing piece, the first pushing piece and the second pushing piece are located on the same side of the pivot part and gradually far away from the pivot part, and when the movable handle rotates, the first pushing piece can push the injector fixing seat to move towards the positioning block so as to insert a needle, and the second pushing piece can push a push rod of the injector so as to inject the needle.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

1. above-mentioned animal intradermal injection device and animal intradermal injection assistor, during the injection, press from both sides animal skin tight between the regulation clamping piece and the activity clamping piece of skin fixation clamp, utilize the syringe needle of guiding hole pair syringe to lead, ensure that the direction of inserting the needle is parallel with skin, adjust the distance between regulation clamping piece and the guiding hole through position control spare, realize the regulation of the needle position of inserting the needle on skin, avoid the syringe needle to pierce through skin, reduce the probability that the syringe needle pierces through skin and leads to the injection failure, and then the success rate of intradermal injection has been improved.

2. Above-mentioned animal intradermal injection device, movable handle can drive the motion of movable clamping piece orientation regulation clamping piece when rotating to press from both sides tight animal skin, and promote the syringe fixing base through first impeller and move in order to advance the needle along orientation locating piece, and promote the push rod of syringe in order to inject through the second impeller, realized skin and pressed from both sides the continuity of operation of fixing, needle feeding, injection, further improved the work efficiency that the animal injected.

3. Above-mentioned animal intradermal injection device, after the injection is accomplished, can also realize moving back the needle automatically through piece, the torsional spring that resets, it is more convenient to use, has further improved work efficiency.

4. When the animal intradermal injection device is used, firstly, the piston is pushed to the preset position of the embedded cylinder by rotating the push rod according to the liquid medicine amount required to be injected, and at the moment, the liquid medicine amount in the liquid medicine storage space enclosed by the embedded cylinder and the piston is the liquid medicine amount required to be injected each time; then, the push rod is directly pushed to the end of the embedded cylinder, and the liquid medicine in the medicine storage space can be completely injected into the animal body by using the piston. The injection device has the advantages that the injection liquid amount is adjusted before injection, so that the advancing distance of the push rod is not required to be noticed during injection, the use is more convenient, and the injection efficiency is higher; meanwhile, the liquid medicine in the medicine storage space can be completely pushed into the animal body by injection every time, and the waste of the liquid medicine can not be caused. After injection is completed, the outer sleeve and the piston can be reset by the injector spring, and the same amount of liquid medicine is ensured to be injected every time.

Drawings

Fig. 1 is a schematic view of an intradermal injection device for animals in accordance with a preferred embodiment of the present invention.

Fig. 2 is a schematic structural view of an injector according to a preferred embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of fig. 2 taken along line a-a.

Fig. 4 is a schematic structural view of an outer sleeve of the injector according to the preferred embodiment of the present invention.

Fig. 5 is a partial structural view of fig. 1.

Fig. 6 is a schematic view illustrating a syringe holder of the animal intradermal injection apparatus shown in fig. 1.

Fig. 7 is an enlarged view of fig. 5 at B.

Fig. 8 is a partial structural view of fig. 7.

Fig. 9 is a schematic cross-sectional structure view of the adjusting screw of fig. 8 at the installation position of the indicating needle.

Fig. 10 is a top view of an adjustment clip of the animal intradermal injection device of fig. 1.

Fig. 11 is a view showing a state of use of the intradermal injection device in an animal in accordance with the preferred embodiment of the present invention.

Description of the main elements

100-animal intradermal injection device, 2-syringe, 21-syringe, 212-inner insert, 2121-first port, 2124-second port, 2126-drug inlet, 2127-connection plate, 214-outer sleeve, 2141-end plate, 2143-barrel, 2144-clearance notch, 2145-connector, 23-piston, 24-plunger, 26-plunger knob, 25-syringe spring, 26-needle, 27-buffer, 28, 29-one-way valve, 3-drug supply bottle, 4-animal intradermal injection aid, 41-housing, 411-guide rod, 412-holder guide rail, 414-mounting slide rail, 416-mounting slide rail, 418-scale, 42-syringe holder, 421-guide hole, 423-a fixed seat slideway, 43-a positioning block, 431-a guide hole, 44-a skin fixing clip, 441-an adjusting clip piece, 4411-a mounting guide rail, 4413-a bulge avoiding hole, 443-a movable clip piece, 4431-a clip piece body, 4432-a trigger part, 4434-a mounting guide rail, 445-a position adjusting piece, 4451-an adjusting screw rod, 4453-an elastic piece, 4454-an indicating needle, 4455-a limiting groove, 4456-a sleeve, 4457-an indicating rod, 446-a clamping space, 447-a flexible layer, 45-a movable handle, 451-a pivot part, 46-a transmission piece, 461-a connecting shaft, 463-a torsion spring, 471-a pressing piece, 472-a first pushing piece, 473-a second pushing piece, 48-a resetting piece, 49-a resetting spring, 5-screw, 200-cow hide.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a preferred embodiment of the present invention provides an intradermal injection device 100 for animals, comprising a syringe 2 and an intradermal injection aid 4, wherein the intradermal injection aid 4 is used for mounting the syringe 2 to aid the injection operation of the syringe 2.

Referring to fig. 2, in the present embodiment, the injector 2 includes a syringe 21, a piston 23 installed in the syringe 21, a push rod 24 connected to the piston 23, and an injector spring 25. The barrel 21 includes an inner sleeve 212 and an outer sleeve 214 coaxially disposed. The opposite ends of the inner sleeve 212 are respectively provided with a first port 2121 and a second port 2124 which are communicated with the inner cavity of the inner sleeve 212, and the first port 2121 is used for installing the needle 26. In this embodiment, the needle 26 is threadably connected to the inner barrel 212 to facilitate removal and replacement of the needle 26. The first port 2121 is provided with a check valve 29, and the check valve 29 allows only the medical fluid to flow out from the inner cylinder 212 toward the needle 26, but does not allow the medical fluid to flow back. The peripheral wall of the embedded cylinder 212 is further provided with a drug inlet 2126, the drug inlet 2126 is communicated with the inner cavity of the embedded cylinder 212 for installing the drug supply bottle 3, and the installation of the drug supply bottle 3 belongs to the prior art, and will not be described in detail herein for brevity. The one-way valve 28 is attached to the medicine inlet 2126, and the one-way valve 28 allows only the medicine liquid to flow out from the medicine bottle 3 toward the insert cylinder 212, but does not allow the medicine liquid to flow back. The construction and mounting of the check valves 28,29 is well known in the art and will not be described in detail herein for the sake of brevity. Preferably, the drug inlet 2126 is disposed proximate the first port 2121 of the inline cartridge 212.

The piston 23 is slidably installed in the inner cylinder 212 and is in sealing contact with the inner circumferential wall of the inner cylinder 212 to prevent the medical fluid in the inner cylinder 212 from leaking out of the second port 2124 of the inner cylinder 212. The piston 23 and the embedded cylinder 212 together enclose a medicine storage space for storing medicine liquid. The inner sleeve 212 is preferably made of a transparent material to facilitate viewing of the liquid medicine in the medicine storage space. The embedded cylinder 212 is also provided with capacity scales, so that the liquid medicine amount in the liquid medicine storage space can be conveniently obtained. The push rod 24 is a screw rod, the push rod 24 is parallel to the syringe 2, one end of the push rod 24 enters the inner insert cylinder 212 through the second port 2124 and is connected with the piston 23, and the other end of the push rod 24 penetrates the outer sleeve 214.

The outer sleeve 214 is sleeved on the push rod 24 and is in threaded connection with the push rod 24. The inner diameter of the outer sleeve 214 is larger than the outer diameter of the inner insert cylinder 212 to enable the inner insert cylinder 212 to be inserted within the outer sleeve 214. The piston 23 can be driven to move along the embedded cylinder 212 by rotating the push rod 24 so as to adjust the size of the medicine storage space, and further, the injection amount of the liquid medicine is adjusted each time. The push rod 24 can drive the outer sleeve 214 and the piston 23 to move along the embedded cylinder 212, and can push the piston 23 to the first port 2121 of the embedded cylinder 212, so as to completely inject the liquid medicine in the medicine storage space into the animal body. In this embodiment, the distance from the end of the outer sleeve 214 close to the first port 212 to the drug inlet 216 is greater than the maximum distance from the piston 23 to the first port 212, so as to ensure that the piston 23 can be pushed by the push rod 24 to the first port 2121 of the inner sleeve 212, thereby completely injecting the drug solution in the drug storage space into the animal body. It is understood that in other embodiments, a clearance hole for clearance of the drug inlet 216 may be provided on the outer sleeve 214 to prevent the drug inlet 216 from obstructing the movement of the outer sleeve 214.

Specifically, in the present embodiment, the outer sleeve 214 includes an end plate 2141, a cylinder 2143 vertically connected to the circumference of the end plate 2141, and a connecting member 2145 installed inside the cylinder 2143. The connecting member 2145 is substantially in the shape of a circular plate, and the connecting member 2145 is fixed on the inner wall of the barrel 2143 and spaced from the end plate 2141, in this embodiment, the distance from the connecting member 2145 to the end of the barrel 2143 away from the end plate 2141 is greater than the distance from the drug inlet 216 to the second port 214 of the inner cylinder 21, so as to prevent the connecting member 2145 from obstructing the relative movement between the outer sleeve 214 and the inner cylinder 212. The push rod 24 sequentially penetrates through the end plate 2141 and the connecting member 2145, and is in threaded connection with both the end plate 2141 and the connecting member 2145. The provision of the connecting member 2145 enables the movement of the push rod 24 to be more stable. The push rod 24 is also fixed with a push rod knob 6, and the push rod knob 6 is positioned outside the outer sleeve 214 so as to rotate the push rod 24.

The syringe spring 25 is disposed in parallel with the outer sleeve 214, and opposite ends of the syringe spring 25 are connected to the outer sleeve 214 and the inner sleeve 212, respectively, for resetting the outer sleeve 214 after completion of injection. In the present embodiment, the syringe spring 25 is sleeved on the push rod 24, and two opposite ends of the syringe spring 25 are respectively connected to the connecting member 2145 and the end of the embedded cylinder 21 having the second port 214. When the syringe spring 25 is in a natural state, the end of the barrel 2143 away from the end plate 2141 is sleeved on the embedded cylinder 212, so that the movement of the outer sleeve 214 is more stable.

In this embodiment, the syringe further includes a buffer spring 9, the buffer spring 9 is located in the outer sleeve 214, and is sleeved on the push rod 24, and two opposite ends of the buffer spring 9 respectively abut against the connecting member 2145 and the end plate 2141.

When the injector 2 is used, firstly, the piston 23 is pushed to the preset position of the embedded cylinder 212 by rotating the push rod 24 according to the liquid medicine amount required to be injected each time, at this time, the liquid medicine amount in the liquid medicine storage space is the liquid medicine amount required to be injected each time, and is set as L1; subsequently, the plunger 24 is pushed, and the plunger 24 drives the outer sleeve 214 and the plunger 23 to move together toward the needle 26, in the process, the syringe spring 25 is compressed, so that the portion of the inner sleeve 212 inserted into the outer sleeve 214 is lengthened, and the length of the syringe 2 is shortened until the plunger 23 is pushed to the end of the inner sleeve 212 (i.e. the first port 2121 of the inner sleeve 212), and the liquid medicine in the medicine storage space can be completely injected into the animal. After the injection is completed, when the external force on the push rod 24 is removed, the syringe spring 25 can drive the outer sleeve 214 and the piston 23 to reset, the medicine storage space is a negative pressure, so that the medicine liquid in the medicine supply bottle 3 fills the medicine storage space again, and at this time, the medicine liquid amount in the medicine storage space is the medicine liquid amount L1 required to be injected each time set last time.

When the injector 2 is used for injection, for injection operation with the same injection quantity in the same batch, the injection quantity required each time is adjusted only before the first injection, the injection quantity is not required to be adjusted when the injection is performed each time, and the working efficiency can be improved. Meanwhile, the amount of the liquid medicine injected each time is adjusted before injection, so that the forward distance of the push rod 24 does not need to be noticed during injection, and the use is more convenient; the piston 23 is driven to move to inject by pushing the push rod 24 instead of rotating, so that the injection time is shorter, the efficiency is higher, and the difficulty of injecting animals is reduced. Meanwhile, the liquid medicine in the embedded cylinder 212 can be completely pushed into the animal body by each injection, and the waste of the liquid medicine can not be caused.

Referring to fig. 1, 5 and 7, the auxiliary device 4 for intradermal injection of animals includes a housing 41, a fixed holder 42 of a syringe, a positioning block 43, a skin-fixing clip 44, a movable handle 45 and a transmission member 46. The syringe fixing seat 42 is mounted on the housing 41 and can be forced to move along a first direction X, which is parallel to the moving direction of the push rod 24. The syringe holder 42 is connected to the inner cartridge 212 of the syringe 2. The positioning block 43 is mounted on the housing 41, a guide hole 431 (fig. 7) through which the needle head 26 of the syringe 2 passes is formed in the positioning block 43 along the first direction X, and the guide hole 431 is used for guiding the needle insertion direction of the needle head 26. The skin fixing clip 44 and the injector fixing seat 42 are respectively located on two opposite sides of the positioning block 43, and the skin fixing clip 44 includes an adjusting clip 441, a movable clip 443 and a position adjusting member 445. The adjustable clamping pieces 441 and the movable clamping pieces 443 are mounted on the housing 41 at intervals along a second direction Y perpendicular to the first direction X, and can be forced to slide relative to the housing 41. The adjustable clip 441 and the movable clip 443 enclose a holding space 446 for placing the skin of the animal. The position adjusting member 445 is mounted on the housing 41 and connected to the adjusting clip 441 to drive the adjusting clip 441 to move along the second direction Y, so as to adjust the distance between the adjusting clip 441 and the guiding hole 431. The movable handle 45 is rotatably mounted on the housing 41 through a pivot portion 451, a pressing member 471, a first pushing member 472 and a second pushing member 473 are disposed on the movable handle 45 at intervals, and the pressing member 471, the first pushing member 472 and the second pushing member 473 are all located on the same side of the pivot portion 451 and gradually away from the pivot portion 451. In the present embodiment, the pivoting portion 451 is a mounting shaft mounted on the housing 41, the movable handle 45 is rotatably sleeved on the mounting shaft, and when the movable handle 45 rotates, the first pushing element 472 can push the syringe fixing seat 42 to move toward the positioning block 43 for needle insertion, and the second pushing element 473 can push the push rod 24 of the syringe 2 for injection. The transmission member 46 is rotatably installed on the housing 41, and opposite ends of the transmission member 46 can be respectively engaged with the pressing member 471 and the movable clip 443, so as to drive the movable clip 443 to move toward the adjustable clip 441 when the movable handle 45 rotates, thereby clamping the skin of the animal.

Referring to fig. 6, the injector fixing seat 42 is mounted on the housing 41 and can be forced to move along a first direction X, specifically: the housing 41 is further provided with a guide rod 411 parallel to the second direction Y; the syringe fixing seat 42 is provided with a guiding hole 421 along the second direction Y, and the guiding rod 411 is slidably inserted through the guiding hole 421 to guide the movement of the syringe fixing seat 42. The auxiliary device 4 for intradermal injection of animals further comprises a reset piece 48, wherein the reset piece 48 is sleeved on the guide rod 411, and two opposite ends of the reset piece 48 are respectively abutted against the housing 41 and the injector fixing seat 42. In this embodiment, the reset members 48 are two springs, the two springs are both sleeved on the guide rod 411 and respectively located at two opposite sides of the syringe fixing seat 42, and two opposite ends of each spring are respectively connected to the housing 41 and the syringe fixing seat 42.

The syringe fixing seat 42 is connected with the embedded cylinder 212 of the syringe 2, specifically: referring to fig. 3, a connecting plate 2127 is further fixed to the inner insertion tube 212 of the syringe 2, and the connecting plate 2127 is connected to the syringe holder 42 through a screw 5, so that the connection between the syringe 2 and the syringe holder 42 is stable and the subsequent detachment is facilitated. Referring to fig. 4, in the present embodiment, the bottom of the outer sleeve 214 is provided with an avoiding notch 2144 for the syringe fixing seat 42 to pass through, so as to prevent the syringe fixing seat 42 from affecting the movement of the outer sleeve 214 during injection, and ensure that the piston 23 can be pushed to the first port 2121 of the inner sleeve 212 by the push rod 24. It will be appreciated that in other embodiments, the end of outer sleeve 214 remote from end plate 2141 may be spaced from embedded barrel 212 when syringe spring 25 is in the natural state, and the distance between the end of outer sleeve 214 remote from end plate 2141 and syringe mount 42 is greater than the maximum distance between plunger 23 and first port 2121, which may also serve the purpose of preventing syringe mount 42 from interfering with the movement of outer sleeve 214 during injection. It will be appreciated that other means of connecting the syringe mount 42 to the internal cartridge 212 of the syringe 2 may be used.

Referring to fig. 6 again, in the present embodiment, the housing 41 is further provided with a plurality of fixing seat guide rails 412, the fixing seat guide rails 412 are arranged at intervals along the second direction Y, and each fixing seat guide rail 412 is parallel to the first direction X; the injector fixing seat 42 is correspondingly provided with a fixing seat slide 423 used in cooperation with the fixing seat guide rail 412, one of the fixing seat guide rail 412 and the fixing seat slide 423 is a convex rail, and the other is a sliding groove slidably connected with the convex rail. Through the cooperation of the holder slide 423 and the holder guide 412, the movement of the syringe holder 42 is guided, so that the movement of the syringe holder 42 is more stable.

Referring to fig. 5 and fig. 7 again, in the present embodiment, the adjusting clip 441 is substantially in the shape of a square plate, and the adjusting clip 441 is connected to the housing 41 and can be forced to move along the second direction Y, specifically: the side surface of the adjusting clip 441 facing the housing 41 is provided with a mounting guide rail 4411, the housing 41 is correspondingly provided with a mounting slide rail 414 used in cooperation with the mounting guide rail 4411, the mounting guide rail 4411 and the mounting slide rail 414 both extend along the second direction Y, one of the mounting guide rail 4411 and the mounting slide rail 414 is a convex rail, and the other one is a sliding groove slidably connected with the convex rail, so that the adjusting clip 441 and the housing 41 are slidably connected together through the sliding cooperation of the mounting guide rail 4411 and the mounting slide rail 414. Referring to fig. 10, the adjusting clip 441 further has a bulge avoiding hole 4413 formed therethrough to facilitate the bulge after injection.

In this embodiment, the movable clip 443 includes a clip body 4431 and a trigger 4432 connected to one end of the clip body 4431. The clip body 4431 is substantially in the shape of a square plate, and is spaced from the adjustment clip 441 to define the clamping space 446, and the clamping space 446 communicates the guide hole 431 with the outside. The clip body 4431 and the trigger part 4432 are both connected to the housing 41 and can be forced to move along the second direction Y, specifically: the side surfaces of the clip body 4431 and the trigger part 4432 facing the housing 41 are provided with mounting rails 4434, the housing 41 is correspondingly provided with mounting rails 416 which are matched with the mounting rails 4434, the mounting rails 4434 and the mounting rails 416 extend along the second direction Y, one of the mounting rails 4434 and the mounting rails 416 is a convex rail, and the other one is a sliding groove which is slidably connected with the convex rail, so that the clip body 4431 and the trigger part 4432 are slidably connected with the housing 41 respectively through the sliding fit of the mounting rails 4434 and the mounting rails 416. The clip body 4431 is further connected to the housing 41 through a return spring 49, specifically: the return spring 49 is disposed along the second direction Y, one end of the return spring 49 is connected to the side of the clip body 4431 facing away from the adjusting clip 441, and one end of the return spring 49 is connected to the housing 41.

In this embodiment, the flexible layer 447 is disposed on both the side of the clip body 4431 facing the adjustable clip 441 and the side of the adjustable clip 441 facing the movable clip 443 to improve comfort. Preferably, the flexible layer 447 is a silicone layer.

Referring to fig. 7 again, in the present embodiment, the position adjusting member 445 includes an adjusting screw 4451 and an elastic member 4453. The adjusting screw 4451 is parallel to the second direction Y, the adjusting screw 4451 is in threaded connection with the housing 41, and one end of the adjusting screw 4451 can abut against the side of the adjusting clip 441 facing away from the movable clip 443. The elastic piece 4453 is sleeved outside the adjusting screw 4451, and two opposite ends of the elastic piece 4453 are respectively connected with the housing 41 and the adjusting clip 441. In the present embodiment, the elastic member 4453 is preferably a spring. When the adjusting screw 4451 rotates, the adjusting screw 4451 can move towards the adjusting clip 441, and the adjusting clip 441 is driven to move towards the movable clip 443 along the second direction Y, and at this time, the elastic element 4453 is compressed; the adjusting screw 4451 is rotated to move the adjusting screw 4451 away from the adjusting jaw 441, and the adjusting jaw 441 is moved away from the movable jaw 443 by the elastic restoring force of the elastic member 4453 to be reset. Therefore, the adjusting screw 4451 rotates to drive the adjusting clip 441 to move along the second direction Y, so as to adjust the vertical distance between the bottom surface of the adjusting clip 441 and the guiding hole 431.

Referring to fig. 7 to 9, in the present embodiment, a scale 418 is further disposed on the housing 41. The scale 418 is fixedly attached to the housing 41 and is disposed adjacent the adjustment screw 4451. The adjusting screw 4451 is provided with an indicating needle 4454 for indicating the scale on the graduated scale 418, which specifically comprises: the adjusting screw 4451 is provided with a limiting groove 4455 along the circumferential direction, and the indicating needle 4454 comprises a sleeve 4456 and an indicating rod 4457 connected with the sleeve 4456. The sleeve 4456 is sleeved on the adjusting screw 4451 and is accommodated in the limiting groove 4455. The pointer 4454 is prevented from moving in the axial direction of the adjustment screw 4451 by the stopper groove 4455. At the same time, the sleeve 4456 can rotate relative to the adjusting screw 4451 under the force to adjust the pointing direction of the indication rod 4457, so that the indication rod 4457 can point to the scale on the graduated scale 418. When the elastic member 4453 of the position adjusting member 445 is in a natural state, the adjusting clip 441 is located at an initial position, and the distance between the bottom surface of the adjusting clip 441 and the guide hole 431 is the largest, assuming 5mm, at which time the scale on the scale 418 pointed by the pointer 4454 on the adjusting screw 4451 is 5 mm. When the adjusting clip 441 moves towards the movable clip 443 with the adjusting screw 4451, the pointer 4454 is driven to move along the scale 418, so that the scale value indicated by the pointer 4454 is the distance between the adjusting clip 441 and the guiding hole 431.

Referring again to fig. 1, in the present embodiment, the movable handle 45 is substantially rod-shaped. The pressing member 471 is substantially rod-shaped, the first pressing member 472 is substantially convex, the second pressing member 473 is substantially elongated, and the pressing member 471, the first pressing member 472 and the second pressing member 473 are all integrally formed with the movable handle 45. In this embodiment, in the initial state, the pressing member 471, the first pressing member 472 and the second pressing member 473 are gradually away from the skin fixing clip 44, the pressing member 471 is in contact with one end of the transmission member 46 away from the triggering portion 4432, the first pressing member 472 is close to the injector fixing seat 42 and is spaced from the injector fixing seat 42 by a first preset distance, the first pressing member 472 and the pressing member 471 are respectively located at two opposite sides of the injector fixing seat 42, and the second pressing member 473 is close to the free end of the push rod 24 of the injector 2 and is spaced from the injector fixing seat 42 by a second preset distance, so that when the movable handle 45 rotates, the transmission member 46, the injector fixing seat 42 and the push rod 24 are sequentially triggered to operate by the pressing member 471, the first pressing member 472 and the second pressing member 473. The first preset distance and the second preset distance can be set according to actual needs.

Referring again to fig. 5, in the present embodiment, the transmission member 46 is substantially in the shape of a long bar and is connected to the housing 41 through a connecting shaft 461. In the present embodiment, one end of the transmission member 46 is disposed near the trigger 4432 of the movable clip 443, and the other end thereof is in contact with the pressing member 471. The connecting shaft 461 is further provided with a torsion spring 463, and two ends of the torsion spring 463 are respectively connected with the housing 41 and the transmission member 46 to reset the transmission member 46. The construction and installation of the torsion spring 463 is well known in the art and will not be described in detail herein for brevity.

The intradermal injection device 100 for an animal is used comprising the steps of:

firstly, the syringe 2 is arranged on the syringe fixing seat 42, the sterilized needle 26 is arranged on the embedded cylinder 212 and is inserted into the guide hole 431 of the positioning block 43; the desired injection volume is adjusted by the push rod knob 26; a medicine feeding bottle 3 is arranged on the medicine inlet 2126; when the movable handle 45 is pulled counterclockwise in the view of fig. 1, in the process, the pressing member 471 presses downward against one end of the transmission member 46, so that the transmission member 46 rotates, and the end of the transmission member 46 away from the pressing member 471 tilts, so as to drive the movable clamping piece 443 to move toward the adjusting clamping piece 441, and store energy to the torsion spring 463 and the return spring 49; the movable handle 45 continues to rotate, then the first pushing piece 472 pushes the injector fixing seat 42 to move towards the positioning block 43, and the resetting piece 48 stores energy; the movable handle 45 continues to rotate, so that the second pushing piece 473 abuts against the push rod 24 to push the push rod 24 of the injector 2 to move towards the skin fixing clip 44, and further, the piston 23 is driven to move towards the needle 26 to the first port 2121 of the embedded cylinder 212, so as to exhaust the air in the embedded cylinder 212, and the injection spring is charged with energy to the piston 23; the movable handle 45 is loosened, the torsion spring 463 enables the transmission piece 46 to reset, and then the movable handle 45 is driven to reset; the reset piece 48 resets the syringe fixing seat 42, the injection spring resets the piston 23, the reset spring 49 resets the movable clip 443, and at the moment, the inner of the embedded cylinder 212 is in negative pressure, so that the liquid medicine in the medicine supply bottle 3 enters the medicine storage space enclosed by the embedded cylinder 212 and the piston 23.

Secondly, shaving and disinfecting the area of animals such as cattle needing injection; the adjusting screw 4451 pushes the adjusting clip 441 to move towards the movable clip 443, so that the distance between the bottom surface of the adjusting clip 441 and the guide hole 431 is about 1/4 of the thickness of the double-layer skin of the animal: in the case of intradermal injection in cattle, one layer of bovine hide is typically about 4 to 5mm thick and the two layers of bovine hide are about 8-10mm thick. The adjusting screw 4451 is rotated to push the adjusting clip 441 to move towards the movable clip 443, so that the distance between the bottom surface of the adjusting clip 441 and the guiding hole 431 is about 1/4 mm, i.e. about 2-2.5mm of the thickness of the double-layer skin of cowhide.

Referring to fig. 11, the cow leather 200 was held by one hand and lifted up to about 1cm, and the held cow leather 200 had a double thickness; the edge of the double-layer cowhide 200 is pushed into the clamping space 446 of the skin fixing clamp 44, the movable handle 45 is tightly held, and the double-layer cowhide is quickly held to the bottom in the anticlockwise direction, in the process, the movable handle 45 rotates in the anticlockwise direction, so that the pressing piece 471 downwards presses one end of the transmission piece 46 to drive the transmission piece 46 to rotate, and then one end, far away from the pressing piece 471, of the transmission piece 46 is tilted to drive the movable clamping piece 443 to move towards the adjusting clamping piece 441, so that the animal skin is clamped, and energy is stored in the torsion spring 463; the movable handle 45 continues to rotate, and then the first pushing piece 472 pushes the injector fixing seat 42 to move towards the positioning block 43 so as to insert the needle; the movable handle 45 continues to rotate, so that the second pushing piece 473 abuts against the push rod 24 and pushes the push rod 24 of the injector 2 to move towards the positioning block 43 along the first direction X, and the push rod 24 pushes the piston 23 to completely inject the liquid medicine in the medicine storage space into the animal body for injection, so that continuous operations of skin clamping and fixing, needle insertion and injection operations are realized, and the working efficiency is further improved. Meanwhile, the distance between the adjusting clamping piece 441 and the guide hole 431 is adjusted by the position adjusting piece 445, the cow leather is fixed by the skin fixing clamp 44, and the needle inserting direction is positioned by the positioning block 43, so that the problems that the needle head 26 is difficult to position in the struggling process of an animal, the needle head 26 penetrates into the cow leather 200 to be punctured and the injection fails along the middle weak position of the double-layer cow leather 200 can be effectively solved.

After the injection is finished, the movable handle 45 is loosened, the resetting piece 48 enables the injector fixing seat 42 to reset, and the needle head 26 automatically withdraws from the cow leather 200; the torsion spring 463 resets the transmission member 46, and the movable handle 45 resets under the action of the transmission member 46; the movable jaw 443 is moved away from the adjustment jaw 441 to be reset by the reset spring 49, so that the skin fixing clip 44 releases the cow leather 200; the syringe spring 25 returns the outer sleeve 214 and the plunger 23. The cow skin 200 was examined for the presence of an intradermal bulge in the epidermis, which indicated successful injection.

The needle 26 is replaced before the next animal is injected and the procedure is followed. The needle 26 may be replaced by the following steps: first, syringe retainer 42 is moved to the right in the first direction X in the view of FIG. 1 so that syringe retainer 42 is spaced from needle 26 to facilitate removal of needle 26, during which reset element 48 on the left side of syringe retainer 42 is stretched and reset element 48 on the right side of syringe retainer 42 is compressed; subsequently, the needle 26 is rotated to separate the needle 26 from the embedded cylinder 212, the used needle 26 is taken out, and the sterilized needle 26 is screwed with the embedded cylinder 212; finally, the syringe fixing base 42 is slowly released, and the resetting member 48 resets the syringe fixing base 42 in the first direction X, during which the syringe fixing base 42 pushes the pressing member 471, so that the movable handle 45 is reset.

It will be appreciated that a torsion spring may also be sleeved on the pivot portion 451 of the movable handle 45 to assist in the return of the movable handle 45.

It is understood that the animal intradermal injection device 100 may also be used for intradermal injection in other animals.

It will be appreciated that in other embodiments, the syringe holder 42 may be omitted, and in use, the cow leather 200 is held by the skin holding clip 44, and then the syringe is manually held, and the needle of the syringe is inserted through the guiding hole 431 of the positioning block 43 for injection. In this case, the first pushing member 472 and the second pushing member 473 can be omitted.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. The animal intradermal injection device comprises an injector, wherein the injector comprises an injection cylinder, a piston arranged in the injection cylinder and a push rod connected with the piston, and the animal intradermal injection device is characterized by further comprising an animal intradermal injection auxiliary device, and the animal intradermal injection auxiliary device comprises:

a housing;

2. An intradermal injection device as in claim 1 wherein: the injection tube comprises an embedded tube and an outer tube which are coaxially arranged, a first port and a second port which are communicated with the inner cavity of the embedded tube are respectively arranged at two opposite ends of the embedded tube, and the first port is used for mounting a needle head; the piston is arranged in the embedded cylinder in a sliding manner and is in sealing contact with the inner peripheral wall of the embedded cylinder; the push rod is parallel to the injection cylinder, one end of the push rod enters the embedded cylinder through the second port to be connected with the piston, and the other end of the push rod penetrates through the outer sleeve; the push rod is further in threaded connection with the outer sleeve; the inner diameter of the outer sleeve is larger than that of the embedded cylinder; the embedded cylinder is arranged on the injector fixing seat; the injector also comprises an injector spring, the injector spring is arranged in parallel with the outer sleeve, and two opposite ends of the injector spring are respectively connected with the outer sleeve and the embedded cylinder; the push rod is pushed to drive the piston to move to the first port of the embedded cylinder along the embedded cylinder.

3. An intradermal injection device as in claim 2 wherein: a medicine inlet is further formed in the peripheral wall of the embedded cylinder in a penetrating mode, the medicine inlet is arranged close to the first port and communicated with the inner cavity of the embedded cylinder, and a one-way valve is mounted at the medicine inlet; the distance from one end of the outer sleeve close to the first port to the medicine inlet is larger than the maximum distance from the piston to the first port.

4. An intradermal injection device as in claim 1 wherein: the adjusting clamping piece is provided with a bulge avoiding hole in a through mode.

5. An intradermal injection device as in claim 1 wherein: the position adjusting piece comprises an adjusting screw and an elastic piece, the adjusting screw is parallel to the second direction, the adjusting screw is in threaded connection with the shell, and one end of the adjusting screw can be abutted against the side face, back to the movable clamping piece, of the adjusting clamping piece; the elastic piece is sleeved outside the adjusting screw rod, and two opposite ends of the elastic piece are respectively connected with the shell and the adjusting clamping piece.

6. An intradermal injection device as in claim 1 wherein: the shell is provided with a guide rod parallel to the second direction, the injector fixing seat is provided with a guide hole in a penetrating way along the second direction, and the guide rod penetrates through the guide hole in a sliding way; the animal intradermal injection assistor further comprises a resetting piece, wherein the resetting piece is sleeved on the guide rod, and two opposite ends of the resetting piece are respectively connected with the shell and the injector fixing seat.

7. An intradermal injection device as in claim 1 wherein: the transmission part is connected with the shell through a connecting shaft, the connecting shaft is further sleeved with a torsional spring, and two tail ends of the torsional spring are respectively connected with the shell and the transmission part.

8. An intradermal injection device as in claim 1 wherein: the movable clamping piece is also connected with the shell through a return spring.

9. An animal intradermal injection aid comprising:

a housing;

10. The animal intradermal injection aid of claim 9 wherein: the animal intradermal injection aid also comprises an injector fixing seat used for installing an injector, wherein the injector fixing seat is arranged on the shell and can move along the first direction under the action of force; the movable handle is also provided with a first pushing piece and a second pushing piece, the pressing piece, the first pushing piece and the second pushing piece are located on the same side of the pivot part and gradually far away from the pivot part, and when the movable handle rotates, the first pushing piece can push the injector fixing seat to move towards the positioning block so as to insert a needle, and the second pushing piece can push a push rod of the injector so as to inject the needle.