CN215194458U - Infusion apparatus puncture needle and infusion apparatus thereof - Google Patents
Infusion apparatus puncture needle and infusion apparatus thereof Download PDFInfo
- Publication number
- CN215194458U CN215194458U CN202120681662.5U CN202120681662U CN215194458U CN 215194458 U CN215194458 U CN 215194458U CN 202120681662 U CN202120681662 U CN 202120681662U CN 215194458 U CN215194458 U CN 215194458U
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- China
- Prior art keywords
- periphery
- limiting
- needle body
- connecting pipe
- puncture needle
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- Expired - Fee Related
Links
- 238000001802 infusion Methods 0.000 title claims description 46
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 239000000022 bacteriostatic agent Substances 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a transfusion system puncture needle and a transfusion system thereof. The transfusion system puncture needle includes: the needle body is provided with a first limiting periphery at the lower end thereof, and a radial opening is arranged above the first limiting periphery; an outer sleeve which is arranged on the lower end surface of the first limit periphery, and a second limit periphery extending towards the inner periphery is arranged at the lower end of the outer sleeve; the connecting pipe is slidably arranged at the lower end of the needle body, the inner periphery of the connecting pipe is matched with the outer periphery of the needle body, a third limiting peripheral edge is arranged on the outer periphery of the upper part of the connecting pipe, and the outer periphery of the third limiting peripheral edge is matched with the inner periphery of the outer sleeve; the upper end of the convex column is provided with an elastic arm. The transfusion device comprises a transfusion device puncture needle, the utility model has the advantages that: the transfusion device is prevented from being loosened due to pulling of external force.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a transfusion device puncture needle and a transfusion device thereof.
Background
Infusion, also known as drip infusion or drip infusion, is a large dose of injection infused into the body by intravenous drip, is usually packaged in a glass or plastic infusion bottle or bag, does not contain preservative or bacteriostatic agent, and is used for continuously and stably entering the vein by adjusting the dropping speed through an infusion apparatus so as to supplement body fluid, electrolyte or provide nutrient substances.
In the clinical transfusion process, due to the reasons of turning over, moving, toileting, dining and the like of a patient, a transfusion device is easy to fall off from a transfusion bottle, and sometimes, a family member inserts the fallen transfusion leather strip back into the original transfusion bottle by self, so that pollution is caused, medicines are wasted, and doctor-patient conflict and adverse reaction are easy to cause.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an infusion apparatus pjncture needle, its elastic arm can stretch out outside radial opening, prevents that the infusion apparatus from pulling because of external force and coming loose.
In order to achieve the above object, the utility model adopts the following technical scheme, include:
the needle body is internally provided with an axially through liquid inlet cavity, the lower end of the needle body is provided with a first limiting periphery extending towards the periphery, and a radial opening is arranged above the first limiting periphery; the needle body is used for puncturing a rubber plug of an infusion bottle;
the outer sleeve is arranged on the lower end face of the first limit periphery and concentrically arranged on the periphery of the needle body, and a second limit periphery extending towards the inner periphery is arranged at the lower end of the outer sleeve;
the connecting pipe is slidably arranged at the lower end of the needle body, the inner periphery of the connecting pipe is matched with the outer periphery of the needle body, a third limiting peripheral edge is arranged on the outer periphery of the upper part of the connecting pipe, the outer periphery of the third limiting peripheral edge is matched with the inner periphery of the outer sleeve, and a joint for connecting with an infusion tube is arranged at the lower end of the connecting pipe;
the convex column is arranged along the axial direction of the needle body, the lower end of the convex column is fixedly arranged in the connecting pipe, the upper end of the convex column extends into the liquid inlet cavity of the needle body, and the upper end of the convex column is provided with an elastic arm;
the size of the radial opening is larger than that of the tail end of the elastic arm, and when the lower end face of the third limiting periphery abuts against the upper end face of the second limiting periphery, the tail end of the elastic arm extends out of the radial opening; when the front end of the connecting pipe is abutted against the lower end face of the first limiting periphery, the tail end of the elastic arm is folded into the liquid inlet cavity.
Preferably, the convex column lower extreme is equipped with the multichannel splice bar, the convex column passes through the multichannel splice bar sets firmly in the connecting tube.
Preferably, the inner wall of the outer sleeve is provided with an axial limiting guide rail, and the periphery of the third limiting periphery is provided with a limiting guide groove matched with the limiting guide rail.
Preferably, the distance between the lower edge of the radial opening and the first limit periphery is equal to the thickness of the infusion bottle rubber plug.
Preferably, the method further comprises the following steps: the first limit periphery and the needle body are integrally formed, the third limit periphery and the connecting pipe are integrally formed, and the second limit periphery and the outer sleeve are integrally formed.
An infusion set comprises the infusion set puncture needle.
The utility model has the advantages that: the elastic arm can extend out of the radial opening to prevent the infusion apparatus from loosening due to pulling of external force. The radial opening is arranged at the lower part of the needle body, which is convenient for discharging the residual liquid medicine in the infusion bottle.
Drawings
Fig. 1 is a sectional view of a puncture needle of an infusion apparatus (the elastic arm extends out of the radial opening).
Fig. 2 is a sectional view of the utility model of an infusion set puncture needle (the elastic arm is retracted into the radial opening).
In the figure, the needle body 110, the liquid inlet cavity 111, the first limit circumference 112, the radial opening 113, the outer sleeve 120, the second limit circumference 121, the connecting tube 130, the third limit circumference 131, the connector 132, the convex column 140, the elastic arm 141, the connecting rib 142, and the rubber plug 2.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-2, an implementation form of the present invention, in order to achieve the above object, adopts the following technical solution, including:
the inner part of the needle body 110 is provided with an axially through liquid inlet cavity 111, the lower end of the needle body 110 is provided with a first limit periphery 112 extending towards the periphery, and a radial opening 113 is arranged above the first limit periphery 112; the needle body 110 is used for puncturing a rubber stopper 2 of an infusion bottle. The size of the radial opening is larger than the size of the end of the elastic arm. Preferably, the distance between the lower edge of the radial opening 113 and the first limit circumference 112 is equal to the thickness of the infusion bottle plug. More preferably, a connecting portion for connecting to the outer tube is provided on a lower end surface of the first stopper rim 112, and the connecting portion is provided with a male screw.
The outer tube 120 is disposed on the lower end surface of the first limit circumference 112 and concentrically disposed on the outer circumference of the needle body 110, and a second limit circumference 121 extending toward the inner circumference is disposed on the lower end of the outer tube 120. Preferably, a connecting portion is disposed at an upper end of the outer sleeve 120, and an internal thread matched with the external thread is disposed on the connecting portion. Preferably, the second stopper rim 121 is integrally formed with the outer sleeve 120.
The connecting tube 130 is slidably disposed at the lower end of the needle body 110, the inner circumference of the connecting tube 130 matches with the outer circumference of the needle body, a third limiting circumference 131 is disposed at the outer circumference of the upper portion of the connecting tube 130, the outer circumference of the third limiting circumference 131 matches with the inner circumference of the outer tube 120, and a joint 132 for connecting with an infusion tube is disposed at the lower end of the connecting tube 130. Preferably, the third position-limiting circumference 131 is integrally formed with the connection tube 130.
The convex column 140 is axially disposed along the needle body 110, the lower end of the convex column 140 is fixedly disposed in the connection pipe 130, the upper end of the convex column 140 extends into the liquid inlet cavity 111 of the needle body 110, and the upper end of the convex column 140 is provided with an elastic arm 141. Preferably, a plurality of connection ribs 142 are provided at a lower end of the protruding pillar 140, and the protruding pillar 140 is fixedly disposed in the connection pipe 130 through the plurality of connection ribs 142. More preferably, the plurality of connecting ribs 142 are 3, and the plurality of connecting ribs 142 are arranged at equal intervals. Preferably, the protruding pillar 140 is integrally formed with the connection pipe 130.
When the lower end face of the third limiting periphery 131 abuts against the upper end face of the second limiting periphery 121, the end of the elastic arm 141 extends out of the radial opening 113; when the front end of the connecting tube 130 abuts against the lower end surface of the first limiting rim 112, the end of the elastic arm 141 is folded into the liquid inlet cavity.
When the plug 2 of the infusion bottle needs to be punctured, the connecting pipe 130 is pushed upwards, the front end of the connecting pipe 130 is abutted against the lower end face of the first limiting periphery 112, at the moment, the tail end of the elastic arm 141 is folded into the liquid inlet cavity, after the plug is punctured into the infusion bottle, the connecting pipe 130 is pulled downwards, the lower end face of the third limiting periphery 131 is abutted against the upper end face of the second limiting periphery 121, at the moment, the tail end of the elastic arm 141 extends out of the radial opening 113, and the elastic arm 141 is clamped above the plug to prevent the infusion apparatus from loosening due to external force. When the infusion bottle needs to be replaced, the connecting tube 130 is pushed upward again, so that the front end of the connecting tube 130 abuts against the lower end face of the first limiting periphery 112, and at the moment, the tail end of the elastic arm 141 is folded into the liquid inlet cavity. After a new infusion bottle is punctured, the connecting pipe 130 is pulled downwards again, so that the lower end face of the third limiting periphery 131 is abutted to the upper end face of the second limiting periphery 121, the tail end of the elastic arm 141 extends out of the radial opening 113, and the elastic arm 141 is clamped above the rubber plug to prevent the infusion apparatus from loosening due to external force.
In another embodiment, a plurality of connecting ribs 142 are disposed at the lower end of the protruding pillar 140, and the protruding pillar 140 is fixedly disposed in the connecting pipe 130 through the plurality of connecting ribs 142. Preferably, the plurality of connecting ribs 142 is 3. More preferably, the plurality of connecting ribs 142 are arranged at equal intervals.
In another embodiment, an axial limit guide rail is arranged on the inner wall of the outer sleeve 120, and a limit guide groove matched with the limit guide rail is arranged on the periphery of the third limit periphery 131. The limiting guide rail and the limiting guide groove can prevent the connecting pipe 130 and the outer sleeve from radially deflecting in the sliding process.
In another embodiment, the distance between the lower edge of the radial opening 113 and the first stopper periphery 112 is equal to the thickness of the infusion bottle plug 2.
In another embodiment, the method further comprises: the first limit circumference 112 is integrally formed with the needle body 110, the third limit circumference 131 is integrally formed with the connection tube 130, and the second limit circumference 121 is integrally formed with the outer tube 120.
An infusion set comprises the infusion set puncture needle 1.
In summary, the present invention provides an infusion apparatus puncture needle 1 and an infusion apparatus thereof, the elastic arm 141 can extend out of the radial opening 113 to prevent the infusion apparatus from being loosened due to pulling by external force. The radial opening 113 is arranged at the lower part of the needle body 110, which is convenient for discharging the residual liquid medicine in the infusion bottle.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (6)
1. An infusion set puncture needle, characterized by comprising:
the needle body is internally provided with an axially through liquid inlet cavity, the lower end of the needle body is provided with a first limiting periphery extending towards the periphery, and a radial opening is arranged above the first limiting periphery; the needle body is used for puncturing a rubber plug of an infusion bottle;
the outer sleeve is arranged on the lower end face of the first limit periphery and concentrically arranged on the periphery of the needle body, and a second limit periphery extending towards the inner periphery is arranged at the lower end of the outer sleeve;
the connecting pipe is slidably arranged at the lower end of the needle body, the inner periphery of the connecting pipe is matched with the outer periphery of the needle body, a third limiting peripheral edge is arranged on the outer periphery of the upper part of the connecting pipe, the outer periphery of the third limiting peripheral edge is matched with the inner periphery of the outer sleeve, and a joint for connecting with an infusion tube is arranged at the lower end of the connecting pipe;
the convex column is arranged along the axial direction of the needle body, the lower end of the convex column is fixedly arranged in the connecting pipe, the upper end of the convex column extends into the liquid inlet cavity of the needle body, and the upper end of the convex column is provided with an elastic arm;
the size of the radial opening is larger than that of the tail end of the elastic arm, and when the lower end face of the third limiting periphery abuts against the upper end face of the second limiting periphery, the tail end of the elastic arm extends out of the radial opening; when the front end of the connecting pipe is abutted against the lower end face of the first limiting periphery, the tail end of the elastic arm is folded into the liquid inlet cavity.
2. An infusion set puncture needle according to claim 1, characterized in that: the convex column lower extreme is equipped with the multichannel splice bar, the convex column passes through the multichannel splice bar sets firmly in the connecting tube.
3. An infusion set puncture needle according to claim 1 or 2, characterized in that: and an axial limiting guide rail is arranged on the inner wall of the outer sleeve, and a limiting guide groove matched with the limiting guide rail is arranged on the periphery of the third limiting periphery.
4. An infusion set puncture needle according to claim 1 or 2, characterized in that: the distance between the lower edge of the radial opening and the first limiting periphery is equal to the thickness of the rubber plug of the infusion bottle.
5. The infusion set puncture needle according to claim 1 or 2, further comprising: the first limit periphery and the needle body are integrally formed, the third limit periphery and the connecting pipe are integrally formed, and the second limit periphery and the outer sleeve are integrally formed.
6. An infusion set comprising an infusion set puncture needle according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120681662.5U CN215194458U (en) | 2021-04-02 | 2021-04-02 | Infusion apparatus puncture needle and infusion apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120681662.5U CN215194458U (en) | 2021-04-02 | 2021-04-02 | Infusion apparatus puncture needle and infusion apparatus thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215194458U true CN215194458U (en) | 2021-12-17 |
Family
ID=79445372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120681662.5U Expired - Fee Related CN215194458U (en) | 2021-04-02 | 2021-04-02 | Infusion apparatus puncture needle and infusion apparatus thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215194458U (en) |
-
2021
- 2021-04-02 CN CN202120681662.5U patent/CN215194458U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211217 |