CN214343781U - Automatic change piercing depth of blood ball appearance - Google Patents
Automatic change piercing depth of blood ball appearance Download PDFInfo
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- CN214343781U CN214343781U CN202022881958.XU CN202022881958U CN214343781U CN 214343781 U CN214343781 U CN 214343781U CN 202022881958 U CN202022881958 U CN 202022881958U CN 214343781 U CN214343781 U CN 214343781U
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- injection
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- injection needle
- joint
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Abstract
The utility model discloses a puncture device of an automatic blood globe, which is provided with an injection cylinder body, an injection needle assembly and an injection push rod assembly, wherein the injection needle assembly comprises an injection needle fixing tube, an injection needle and a first clamping head, the first clamping head is fixed at the tail end of the injection needle fixing tube, the head part of the injection needle extends out from the head end of the injection needle fixing tube, and the tail part of the injection needle extends out from the tail end of the injection needle fixing tube and into the shaft hole of the first clamping head; an elastic retainer ring is arranged in the injection cylinder body, and the outer ring of the elastic retainer ring is clamped on the inner wall of the injection cylinder body; the injection push rod assembly comprises an elastic sealing plug, an injection push rod and a second clamping joint, the elastic sealing plug is arranged on the clamping part, the injection push rod is fixed on the rear end face of the back seat part, and the second clamping joint and the first clamping joint realize clamping and then complete a zero-position injection process and a self-destruction process of the injection needle assembly entering the injection cylinder. The puncture device of the automatic blood globe realizes zero injection and can prevent the injector from being reused.
Description
Technical Field
The utility model belongs to the technical field of the technique of syringe and specifically relates to an automatic change piercing depth of blood ball appearance.
Background
A syringe is a common medical device, and is used primarily for drawing or injecting gas or liquid through a needle. At present, the existing syringes on the market have a series of problems due to the defects in the structural design, wherein two main problems need to be solved: (1) zero injection cannot be fully realized, namely, the extracted gas or liquid cannot be completely injected into a human body or an animal body, so that the waste of the medicine is caused; (2) after the injection is completed, in order to prevent the reuse of the syringe, medical staff is usually required to separate the injection needle from the injection cylinder in time, however, once situations such as insufficient management or illegal profit occur, the separated syringes may be assembled and reused by lawless persons for many times, and the personal safety of the person to be injected is greatly threatened.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: in order to solve the problems existing in the background technology, the puncture device of the automatic blood globe is provided, which not only can realize zero injection, but also can prevent the injector from being reused.
The utility model provides a technical scheme that its technical problem adopted is: a puncture device of an automatic blood globe comprises an injection cylinder body, an injection needle assembly and an injection push rod assembly, wherein the injection needle assembly comprises an injection needle fixing tube, an injection needle and a first clamping joint, the first clamping joint is fixed at the tail end of the injection needle fixing tube, the injection needle correspondingly penetrates through the injection needle fixing tube and the first clamping joint, the head of the injection needle extends out of the head end of the injection needle fixing tube, and the tail of the injection needle extends out of the tail end of the injection needle fixing tube and into a shaft hole of the first clamping joint; an elastic clamping ring is arranged in the injection cylinder body, the outer ring of the elastic clamping ring is clamped on the inner wall of the injection cylinder body, and the inner ring of the elastic clamping ring is matched with the side wall of the tail part of the injection needle fixing tube; the injection push rod assembly comprises an elastic sealing plug, an injection push rod and a second clamping joint, the second clamping joint comprises a clamping portion and a rear seat portion, the elastic sealing plug is sleeved on the clamping portion, the injection push rod is fixed on the rear end face of the rear seat portion, and the second clamping joint and the first clamping joint achieve zero-position injection process and self-destruction process of the injection needle assembly entering the injection cylinder after clamping.
Further specifically, among the above-mentioned technical scheme, first joint is the convex part, the second joint is the concave part, is provided with first recess on the lateral wall of first joint, is provided with first protruding muscle on the inner wall of joint portion of second joint, through first protruding muscle matches and imbeds in the first recess, realize the joint of second joint and first joint.
More specifically, in the above technical solution, a second groove is formed in an inner wall of the shaft hole of the elastic sealing plug, a second protruding rib is formed in an outer wall of the clamping portion of the second clamping head, and the second clamping head and the elastic sealing plug are tightly fixed by the second protruding rib being embedded into the second groove in a matching manner.
More specifically, in the above technical solution, the tail of the injection needle fixing tube is a tapered block structure with a wide front and a narrow back, and the inner ring of the elastic collar is a tapered hole structure with a wide front and a narrow back.
Further specifically, in the above technical solution, a third groove is provided on an inner wall of an injection cavity of the injection cylinder, a third convex rib is provided on an outer ring of the elastic collar, and the elastic collar and the injection cylinder are assembled by embedding the third convex rib into the third groove in a matching manner.
More specifically, in the above technical solution, the outer wall of the elastic sealing plug is sequentially provided with a first sealing rib, a second sealing rib and a third sealing rib from front to back, and the first sealing rib, the second sealing rib and the third sealing rib are respectively and tightly fitted with the inner wall of the injection cylinder.
More specifically, in the above technical solution, an inwardly protruding collar is disposed on a rear end inner bore wall of the injection cylinder, and an inner ring diameter of the collar is smaller than a diameter of the rear seat portion.
More specifically, in the above technical solution, the front end of the elastic sealing plug is a forward protruding arc surface structure, and the front end of the injection cavity of the injection cylinder is an arc surface structure matched with the front end of the elastic sealing plug.
Further specifically, in the above technical solution, the injection needle fixing tube, the injection needle and the first clamping head are an integrated structure.
More specifically, in the above technical solution, the elastic sealing plug, the injection push rod, and the second bayonet joint are an integrated structure.
The utility model has the advantages that: the utility model provides a pair of change piercing depth of blood ball appearance, simple structure, reasonable in design not only can realize the zero-bit injection, prevents the waste of medicine, can also realize the self-destruction operation of syringe needle subassembly, and then prevents that the syringe from being used repeatedly, effectively improves the safety performance of syringe, the extensive popularization and use of being convenient for.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second schematic structural diagram of the present invention;
fig. 3 is a third schematic structural diagram of the present invention;
FIG. 4 is a schematic structural view of the injection needle assembly;
fig. 5 is a schematic view of the structure of the injection push rod assembly.
Reference numbers in the drawings: 1. 1-1 part of injection cylinder body and a third groove; 1-2, convex ring; 2. an injection needle fixing tube; 3. an injection needle; 4. a first card connector; 4-1, a first groove; 5. an elastic collar; 5-1, third convex rib; 6. an elastic sealing plug; 6-1, a first sealing convex rib; 6-2, second sealing convex ribs; 6-3, third sealing convex ribs; 7. an injection push rod; 8. a second card connector; 8-1, first convex ribs; 8-2 and a second convex rib.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-5, a puncture device of an automatic blood globe comprises an injection cylinder 1, an injection needle assembly and an injection push rod assembly.
Syringe needle subassembly includes syringe needle fixed tube 2, syringe needle 3 and first joint head 4, and first joint head 4 is fixed at the tail end of syringe needle fixed tube 2, and syringe needle 3 corresponds and passes syringe needle fixed tube 2 and first joint head 4, and the head of syringe needle 3 stretches out from the head end of syringe needle fixed tube 2, and the afterbody of syringe needle 3 stretches out and stretches into the axle hole of first joint head 4 from the tail end of syringe needle fixed tube 2.
An elastic clamping ring 5 is arranged in the injection cylinder body 1, the outer ring of the elastic clamping ring 5 is clamped on the inner wall of the injection cylinder body 1, and the inner ring of the elastic clamping ring 5 is matched with the side wall at the tail part of the injection needle fixing tube 2.
The injection push rod assembly comprises an elastic sealing plug 6, an injection push rod 7 and a second clamping joint 8, the second clamping joint 8 comprises a clamping portion and a rear seat portion, the elastic sealing plug 6 is sleeved on the clamping portion, the injection push rod 7 is fixed on the rear end face of the rear seat portion, and the second clamping joint 8 and the first clamping joint 4 are connected in a clamped mode to complete a zero-position injection process and a self-destruction process of the injection needle assembly entering the injection barrel body 1.
The first clamping head 4 is a convex part, the second clamping head 8 is a concave part, a first groove 4-1 is formed in the side wall of the first clamping head 4, a first convex rib 8-1 is arranged on the inner wall of the clamping part of the second clamping head 8, and the first convex rib 8-1 is embedded into the first groove 4-1 in a matched mode to achieve clamping connection of the second clamping head 8 and the first clamping head 4.
A second groove is formed in the inner wall of the shaft hole of the elastic sealing plug 6, a second convex rib 8-2 is arranged on the outer wall of the clamping portion of the second clamping connector 8, and the second convex rib 8-2 is embedded into the second groove in a matched mode to achieve tight fixation of the second clamping connector 8 and the elastic sealing plug 6.
The tail part of the injection needle fixing tube 2 is of a tapered block structure with a wide front part and a narrow back part, and the inner ring of the elastic clamping ring 5 is of a tapered hole structure with a wide front part and a narrow back part.
The inner wall of the injection cavity of the injection cylinder body 1 is provided with a third groove 1-1, the outer ring of the elastic clamping ring 5 is provided with a third convex rib 5-1, and the third convex rib 5-1 is embedded into the third groove 1-1 in a matching mode to realize the assembly of the elastic clamping ring 5 and the injection cylinder body 1.
The outer wall of the elastic sealing plug 6 is sequentially provided with a first sealing convex rib 6-1, a second sealing convex rib 6-2 and a third sealing convex rib 6-3 from front to back, and the first sealing convex rib 6-1, the second sealing convex rib 6-2 and the third sealing convex rib 6-3 are respectively and tightly matched with the inner wall of the injection cylinder 1.
The inner hole wall of the rear end of the injection cylinder body 1 is provided with a convex ring 1-2 protruding inwards, the diameter of the inner ring of the convex ring 1-2 is smaller than that of the backseat part, when the injection push rod component moves backwards, because the outlet of the rear end of the injection cylinder body 1 is smaller, the injection push rod component cannot go out from the outlet of the rear end of the injection cylinder body 1, and the injection push rod component is left in the injection cavity of the injection cylinder body 1.
The front end of the elastic sealing plug 6 is a forward protruding arc surface structure, and the front end of the injection cavity of the injection cylinder 1 is an arc surface structure matched with the front end of the elastic sealing plug 6.
Syringe needle fixed tube 2, syringe needle 3 and first joint 4 structure as an organic whole, and syringe needle fixed tube 2, syringe needle 3 and first joint 4 are a whole promptly, do not separate between the three.
The elastic sealing plug 6, the injection push rod 7 and the second clamping joint 8 are of an integrated structure, namely the elastic sealing plug 6, the injection push rod 7 and the second clamping joint 8 are integrated and are not separated.
The working principle of the puncture device of the automatic blood globe is as follows: firstly, the injection needle assembly is assembled at the front end part of the injection barrel body 1, the injection push rod assembly is assembled at the rear end part of the injection barrel body 1, a certain amount of medicine is stored in the injection barrel body 1, when the injection push rod assembly is slowly pushed forwards, the medicine is continuously and slowly injected to a human body, after the second clamping connector 8 on the injection push rod assembly and the first clamping connector 4 on the injection needle assembly complete clamping action, the injection push rod assembly is continuously and slowly pushed forwards, and due to the matching relation of the injection needle fixing tube 2 and the elastic clamping ring 5 on the injection needle assembly, the forward pushing action of the injection push rod assembly is ensured to be smoothly carried out until the injection push rod assembly drives the front profile surface of the elastic clamping ring 5 to be tightly attached to the front end surface of an injection cavity of the injection barrel body 1, so that zero-position injection of the injector is realized, and the medicine waste is prevented. Then, the injection push rod component moves backwards, because of the matching relation of the injection needle fixing tube 2 and the elastic clamping ring 5 on the injection needle component, the elastic clamping ring 5 can block the backward movement of the injection needle component, the elastic clamping ring 5 stays in the injection cavity of the injection barrel body 1, the injection push rod component drives the injection needle component to continue moving backwards until the injection needle component stays in the injection barrel body 1 to realize self-destruction operation, and then the injector is prevented from being reused.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides an automatic change piercing depth of blood ball appearance, has injection barrel (1), syringe needle subassembly and injection push rod subassembly, its characterized in that: the injection needle assembly comprises an injection needle fixing tube (2), an injection needle (3) and a first clamping connector (4), the first clamping connector (4) is fixed at the tail end of the injection needle fixing tube (2), the injection needle (3) correspondingly penetrates through the injection needle fixing tube (2) and the first clamping connector (4), the head of the injection needle (3) extends out of the head end of the injection needle fixing tube (2), and the tail of the injection needle (3) extends out of the tail end of the injection needle fixing tube (2) and extends into a shaft hole of the first clamping connector (4); an elastic clamping ring (5) is arranged in the injection cylinder body (1), the outer ring of the elastic clamping ring (5) is clamped on the inner wall of the injection cylinder body (1), and the inner ring of the elastic clamping ring (5) is matched with the side wall of the tail part of the injection needle fixing tube (2); the injection push rod assembly comprises an elastic sealing plug (6), an injection push rod (7) and a second clamping joint (8), the second clamping joint (8) comprises a clamping part and a backseat part, the elastic sealing plug (6) is sleeved on the clamping part, the injection push rod (7) is fixed on the rear end face of the backseat part, and the second clamping joint (8) and the first clamping joint (4) achieve the self-destruction process that the zero-position injection process and the injection needle assembly enter the injection barrel body (1) inside after the clamping.
2. The lancing device of an automated hematology instrument of claim 1, wherein: first joint (4) are the convex part, second joint (8) are the concave part, are provided with first recess (4-1) on the lateral wall of first joint (4), are provided with first protruding muscle (8-1) on the inner wall of the joint portion of second joint (8), through first protruding muscle (8-1) match is embedded into in first recess (4-1), realize the joint of second joint (8) and first joint (4).
3. The lancing device of an automated hematology instrument of claim 1, wherein: and a second groove is formed in the inner wall of the shaft hole of the elastic sealing plug (6), a second convex rib (8-2) is arranged on the outer wall of the clamping part of the second clamping head (8), and the second clamping head (8) and the elastic sealing plug (6) are tightly fixed by matching and embedding the second convex rib (8-2) into the second groove.
4. The lancing device of an automated hematology instrument of claim 1, wherein: the tail part of the injection needle fixing tube (2) is of a tapered block structure with a wide front part and a narrow back part, and the inner ring of the elastic clamping ring (5) is of a tapered hole structure with a wide front part and a narrow back part.
5. The lancing device of an automated hematology instrument of claim 1, wherein: the injection device is characterized in that a third groove (1-1) is formed in the inner wall of an injection cavity of the injection cylinder body (1), a third convex rib (5-1) is arranged on the outer ring of the elastic clamping ring (5), and the elastic clamping ring (5) is matched and embedded into the third groove (1-1) to assemble the injection cylinder body (1).
6. The lancing device of an automated hematology instrument of claim 1, wherein: the injection device is characterized in that a first sealing convex rib (6-1), a second sealing convex rib (6-2) and a third sealing convex rib (6-3) are sequentially arranged on the outer wall of the elastic sealing plug (6) from front to back, and the first sealing convex rib (6-1), the second sealing convex rib (6-2) and the third sealing convex rib (6-3) are respectively and tightly matched with the inner wall of the injection cylinder body (1).
7. The lancing device of an automated hematology instrument of claim 1, wherein: the injection syringe is characterized in that a convex ring (1-2) protruding inwards is arranged on the inner hole wall of the rear end of the injection syringe body (1), and the diameter of the inner ring of the convex ring (1-2) is smaller than that of the backseat.
8. The lancing device of an automated hematology instrument of claim 1, wherein: the front end of the elastic sealing plug (6) is of a forward protruding arc surface structure, and the front end of the injection cavity of the injection cylinder body (1) is of an arc surface structure matched with the front end of the elastic sealing plug (6).
9. The lancing device of an automated hematology instrument of claim 1, wherein: the injection needle fixing tube (2), the injection needle (3) and the first clamping connector (4) are of an integrated structure.
10. The lancing device of an automated hematology instrument of claim 1, wherein: the elastic sealing plug (6), the injection push rod (7) and the second clamping joint (8) are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022881958.XU CN214343781U (en) | 2020-12-03 | 2020-12-03 | Automatic change piercing depth of blood ball appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022881958.XU CN214343781U (en) | 2020-12-03 | 2020-12-03 | Automatic change piercing depth of blood ball appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214343781U true CN214343781U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022881958.XU Active CN214343781U (en) | 2020-12-03 | 2020-12-03 | Automatic change piercing depth of blood ball appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214343781U (en) |
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2020
- 2020-12-03 CN CN202022881958.XU patent/CN214343781U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230905 Address after: 510000 courtyard, No.466, Xingang Middle Road, Haizhu District, Guangzhou City, Guangdong Province Patentee after: GUANGDONG SECOND PROVINCIAL GENERAL HOSPITAL (GUANGDONG PROVINCIAL EMERGENCY Hospital) Address before: 510000 Room 403, No. 18, courtyard 1, shiliugang Road, Haizhu District, Guangzhou City, Guangdong Province Patentee before: Lei Da |