CN209848009U - Slotted needle tube and intravenous infusion remaining needle - Google Patents
Slotted needle tube and intravenous infusion remaining needle Download PDFInfo
- Publication number
- CN209848009U CN209848009U CN201920060969.6U CN201920060969U CN209848009U CN 209848009 U CN209848009 U CN 209848009U CN 201920060969 U CN201920060969 U CN 201920060969U CN 209848009 U CN209848009 U CN 209848009U
- Authority
- CN
- China
- Prior art keywords
- needle
- needle tube
- negative pressure
- needle tubing
- pressure source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 21
- 238000001990 intravenous administration Methods 0.000 title claims description 12
- 238000007789 sealing Methods 0.000 claims description 4
- 239000008280 blood Substances 0.000 abstract description 16
- 210000004369 blood Anatomy 0.000 abstract description 16
- 210000004204 blood vessel Anatomy 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000036772 blood pressure Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000001953 Hypotension Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 208000012866 low blood pressure Diseases 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000001297 phlebitis Diseases 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000004003 subcutaneous fat Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model discloses a needle is kept somewhere to fluting needle tubing and venous transfusion, catheter subassembly and needle tubing subassembly including interconnect, the catheter subassembly includes the pipe seat and fixes at its distal end, is used for the pipe of infusion, the needle tubing subassembly includes needle tube seat and needle tubing at least, the near-end of needle tubing is inserted and is located in the needle tube seat, the distal end of needle tubing is passed the cavity of pipe is inside and stretch out, the needle tubing has the opening, and its near-end is provided with the fluting, the fluting is connected with the negative pressure source, the negative pressure source sets firmly bottom one side of needle tube seat, the interface of negative pressure source passes through the fluting with the inside of needle tubing switches on. The beneficial effects of the utility model are mainly embodied in that: simple structure is exquisite, through setting up the negative pressure source, accelerates the blood vessel blood return to whether correctly stretch into the blood vessel with the pipe, convenient and fast is confirmed fast.
Description
Technical Field
The utility model relates to an infusion apparatus field especially relates to a needle is kept somewhere in venous transfusion and adapted fluting needle tubing thereof.
Background
The venous indwelling needle is a medical apparatus used for venous transfusion treatment, an indwelling needle tube of the indwelling needle of the existing venous indwelling needle is usually made of metal materials, and because the wall of the needle tube cannot be transparent, when medical personnel puncture the venous blood vessel of a patient, whether the indwelling needle tube has been punctured into the venous blood vessel of the patient or not needs to be judged by observing whether blood returns appear in a blood return cavity positioned in a catheter seat.
In some special cases, the venous return speed of the patient becomes slow, for example, the subcutaneous fat of some patients causes the venous return speed to be slow, and sometimes when the patient uses a medicine for controlling blood pressure or is in a special case of heavy bleeding and the like, the venous blood pressure of the patient is also low, so that the venous return speed is slow. The needle head of the general indwelling needle tube is far away from the blood return cavity, sometimes, too low blood pressure is difficult to extrude blood into the blood return cavity, the time required for the blood in the venous vessel of a patient to flow from the needle head of the indwelling needle tube to the blood return cavity is far longer than the operation time for medical staff to puncture the venous vessel of the patient, and therefore the medical staff can be difficult to accurately judge whether the blood in the venous vessel of the patient is punctured, repeated puncture is generated, the wall of the catheter is very thin, the repeated puncture can cause the occurrence of folds of the catheter, thrombus is generated, mechanical phlebitis is caused, unnecessary pain is brought to the patient, and meanwhile, the working efficiency of the medical staff is also reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide an intravenous infusion remaining needle and a matched slotted needle tube thereof.
The purpose of the utility model is realized through the following technical scheme:
a slotted needle cannula has a tubular body with an opening and a slot disposed in a proximal end thereof.
The slotted needle tube is applied to an intravenous infusion indwelling needle.
The utility model provides a venous transfusion indwelling needle, includes interconnect's catheter subassembly and needle tubing assembly, the catheter subassembly includes the pipe seat and fixes at its distal end, is used for the pipe of infusion, the needle tubing assembly includes needle tubing seat and needle tubing at least, the near-end of needle tubing is inserted and is located in the needle tubing seat, the distal end of needle tubing passes the cavity inside of pipe and stretch out, the needle tubing has the opening, and its near-end is provided with the fluting, the fluting is connected with the negative pressure source, the negative pressure source sets firmly bottom one side of needle tubing seat, the interface of negative pressure source passes through the fluting with the inside of needle tubing switches on.
Preferably, the negative pressure source comprises a hollow soft body and a supporting frame matched with the hollow soft body, the supporting frame is fixedly connected with the bottom of the needle tube seat, and the hollow soft body is arranged inside the supporting frame.
Preferably, the soft body is provided with an interface which is clamped on the outer side of the needle tube and wraps the outside of the open slot, and the interface and the open slot are in tight fit to ensure the sealing property.
Preferably, the needle tube seat is internally provided with a soft plug which is sleeved outside the needle tube.
Preferably, the catheter hub is connected to the infusion connector by a long catheter.
Preferably, the long conduit is provided with a flow stopping clamp.
The beneficial effects of the utility model are mainly embodied in that: the near end is provided with a grooved steel needle, so that the axial bending strength is better; the near end of the venous transfusion indwelling needle is accelerated to return blood by arranging a negative pressure source so as to quickly determine whether the catheter is correctly inserted into a blood vessel, and the venous transfusion indwelling needle is convenient and quick.
Drawings
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
FIG. 1: the explosion schematic diagram of the embodiment of the utility model;
FIG. 2: schematic diagram of an embodiment of the present invention;
wherein: 1. a catheter hub; 2. a needle tube base; 3. a needle tube; 31. an opening; 32. grooving; 4. a source of negative pressure; 41. software; 42. a support frame; 43. an interface; 5. a soft plug; 6. a long catheter; 7. an infusion joint; 8. and (4) a flow stopping clamp.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.
In the description of the embodiments, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.
As shown in fig. 1 to 2, the utility model discloses an intravenous infusion indwelling needle, including interconnect's catheter subassembly and needle tubing assembly, the catheter subassembly includes catheter holder 1 and fixes at its distal end, is used for the pipe 11 of infusion, the needle tubing assembly includes needle tube seat 2 and needle tubing 3 at least, the near-end of needle tubing 3 is inserted and is located in the needle tube seat 2, the distal end of needle tubing 3 passes the hollow inside of pipe 11 and stretches out.
In order to enable smooth backflow of blood in the needle tube 3, the needle tube 3 has an opening 31, the opening 31 is close to a needle tube opening of the needle tube 3, and when the blood flows back from the needle tube opening of the needle tube 3, the blood can also flow back from the opening 31.
In order to avoid the situation that blood cannot flow back due to the fact that blood pressure is too low, the proximal end of the needle tube 3 is provided with a notch 32, and the notch 32 is connected with a negative pressure source 4. The utility model discloses its axial bending strength of well grooved needle tubing is better. The negative pressure source 4 is fixedly arranged on one side of the bottom of the needle tube seat 2, and a connector of the negative pressure source 4 is communicated with the inside of the needle tube 3 through the notch 32. Specifically, the negative pressure source 4 comprises a hollow soft body 41 and a supporting frame 42 matched with the hollow soft body, the supporting frame 42 is fixedly connected with the bottom of the needle tube seat 2, and the hollow soft body 41 is arranged inside the supporting frame 42. The soft body 41 is provided with an interface 43 which is clamped on the outer side of the needle tube 3 and wraps the groove 32, and the interface 43 and the groove are in tight fit to ensure the sealing property. Of course, those skilled in the art will appreciate that the flexible body 41 may be connected to the slot 32 of the needle cannula 3 by other means to ensure a seal.
In this embodiment, the soft body 41 is made of transparent elastic plastic material, and other suitable materials may be used in other embodiments; the fixing means between the supporting frame 42 and the needle seat 2 may be bonding or ultrasonic welding, or other equivalent means, but those skilled in the art will recognize that the two parts may be manufactured integrally, and only the soft body is required to be contained. The working principle of the negative pressure source 4 is as follows: when in use, the soft body 41 is pinched up and down to extrude the air in the soft body; and then the needle tube 3 is punctured into the blood vessel, the soft body 41 is released at the moment, the soft body 41 is recovered to generate negative pressure, if the blood vessel is successfully entered, the blood is quickly returned under the action of the negative pressure and enters the soft body 41, and if the blood vessel is not entered, the blood return is not generated. Thus, blood can be returned quickly even if the blood pressure is insufficient.
The soft plug 5 is arranged inside the needle tube seat 2, and the soft plug 5 is sleeved outside the needle tube 3 to ensure the sealing property inside the catheter seat 1. The catheter seat 1 is connected with an infusion joint 7 through a long catheter 6, and a flow stopping clamp 8 is arranged on the long catheter 5. These are prior art and are not the focus of the description herein, which is not repeated herein.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. A slotted needle cannula, comprising: has a tubular body with an opening (31) and a proximal end provided with a slot (32).
2. The slotted needle cannula of claim 1, wherein: is applied to an intravenous infusion indwelling needle.
3. An intravenous infusion indwelling needle, includes interconnect's catheter subassembly and needle tubing assembly, the catheter subassembly includes pipe seat (1) and fixes pipe (11) at its distal end, is used for the infusion, the needle tubing assembly includes needle tube seat (2) and needle tubing (3) at least, the near-end of needle tubing (3) is inserted and is located in needle tube seat (2), the distal end of needle tubing (3) passes the cavity inside of pipe (11) and stretch out its characterized in that: the needle tube (3) is provided with an opening (31), a notch (32) is formed in the near end of the needle tube, the notch (32) is connected with a negative pressure source (4), the negative pressure source (4) is fixedly arranged on one side of the bottom of the needle tube seat (2), and an interface of the negative pressure source (4) is communicated with the inside of the needle tube (3) through the notch (32).
4. The intravenous infusion indwelling needle according to claim 3, wherein: the negative pressure source (4) comprises a hollow soft body (41) and a supporting frame (42) matched with the hollow soft body, the supporting frame (42) is fixedly connected with the bottom of the needle tube seat (2), and the hollow soft body (41) is arranged inside the supporting frame (42).
5. The intravenous infusion indwelling needle of claim 4, wherein: the soft body (41) is provided with an interface (43) which is clamped on the outer side of the needle tube (3) and wraps the outside of the open slot (32), and the interface and the open slot are in tight fit to ensure the sealing performance.
6. An intravenous infusion indwelling needle according to any one of claims 3 to 5, wherein: the needle tube seat (2) is internally provided with a soft plug (5), and the soft plug (5) is sleeved outside the needle tube (3).
7. An intravenous infusion indwelling needle according to any one of claims 3 to 5, wherein: the catheter seat (1) is connected with an infusion joint (7) through a long catheter (6).
8. The intravenous infusion indwelling needle according to claim 7, wherein: the long catheter (6) is provided with a flow stopping clip (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920060969.6U CN209848009U (en) | 2019-01-15 | 2019-01-15 | Slotted needle tube and intravenous infusion remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920060969.6U CN209848009U (en) | 2019-01-15 | 2019-01-15 | Slotted needle tube and intravenous infusion remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209848009U true CN209848009U (en) | 2019-12-27 |
Family
ID=68930248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920060969.6U Withdrawn - After Issue CN209848009U (en) | 2019-01-15 | 2019-01-15 | Slotted needle tube and intravenous infusion remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209848009U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109646762A (en) * | 2019-01-15 | 2019-04-19 | 苏州林华医疗器械股份有限公司 | Fluting needle tubing and intravenous infusion indwelling needle |
-
2019
- 2019-01-15 CN CN201920060969.6U patent/CN209848009U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109646762A (en) * | 2019-01-15 | 2019-04-19 | 苏州林华医疗器械股份有限公司 | Fluting needle tubing and intravenous infusion indwelling needle |
| CN109646762B (en) * | 2019-01-15 | 2024-04-05 | 苏州林华医疗器械股份有限公司 | Grooved needle tube and intravenous infusion remaining needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191227 Effective date of abandoning: 20240405 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191227 Effective date of abandoning: 20240405 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |