CN109646762B - Grooved needle tube and intravenous infusion remaining needle - Google Patents
Grooved needle tube and intravenous infusion remaining needle Download PDFInfo
- Publication number
- CN109646762B CN109646762B CN201910034845.5A CN201910034845A CN109646762B CN 109646762 B CN109646762 B CN 109646762B CN 201910034845 A CN201910034845 A CN 201910034845A CN 109646762 B CN109646762 B CN 109646762B
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- China
- Prior art keywords
- needle
- needle tube
- catheter
- negative pressure
- pressure source
- Prior art date
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- 238000001990 intravenous administration Methods 0.000 title claims abstract description 12
- 238000001802 infusion Methods 0.000 title claims description 15
- 210000004369 blood Anatomy 0.000 abstract description 18
- 239000008280 blood Substances 0.000 abstract description 18
- 210000004204 blood vessel Anatomy 0.000 abstract description 12
- 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
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 208000001953 Hypotension Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229940079593 drug Drugs 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 208000001297 phlebitis Diseases 0.000 description 1
- 238000010992 reflux Methods 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1585—Needle inserters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1587—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body suitable for being connected to an infusion line after insertion into a patient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1588—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body having means for monitoring, controlling or visual inspection, e.g. for patency check, avoiding extravasation
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a grooved needle tube and an intravenous transfusion remaining needle, which comprises a catheter assembly and a needle tube assembly which are connected with each other, wherein the catheter assembly comprises a catheter seat and a catheter fixed at the far end of the catheter seat and used for transfusion, the needle tube assembly at least comprises a needle tube seat and a needle tube, the near end of the needle tube is inserted into the needle tube seat, the far end of the needle tube penetrates through the hollow interior of the catheter and stretches out, the needle tube is provided with an opening, the near end of the needle tube is provided with a groove, the groove is connected with a negative pressure source, the negative pressure source is fixedly arranged at one side of the bottom of the needle tube seat, and an interface of the negative pressure source is communicated with the interior of the needle tube through the groove. The beneficial effects of the invention are mainly as follows: the blood vessel blood return is accelerated by arranging the negative pressure source, so that whether the catheter is correctly stretched into the blood vessel is rapidly determined, and convenience and rapidness are realized.
Description
Technical Field
The invention relates to the field of infusion apparatuses, in particular to an intravenous infusion indwelling needle and a grooved needle tube matched with the intravenous infusion indwelling needle.
Background
The venous indwelling needle is a medical apparatus for venous transfusion treatment, and an indwelling needle tube of the existing venous indwelling needle is made of a metal material, and because the tube wall of the needle tube cannot transmit light, when a medical staff punctures a venous blood vessel of a patient, whether the indwelling needle tube has penetrated the venous blood vessel of the patient or not needs to be judged by observing whether a blood return cavity in a catheter seat returns blood or not.
In some special cases, the venous return speed of the patient can be slow, for example, the venous return speed can be slow due to the fact that subcutaneous fat of some patients is too thick, and sometimes, when the patients use medicines for controlling blood pressure or are in special cases such as massive hemorrhage, the venous blood pressure can be 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, and sometimes too low blood pressure is difficult to squeeze blood into the blood return cavity, the time required for blood in a venous blood 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 blood vessel of the patient, and the operation time can lead the medical staff to be difficult to accurately judge whether the blood vessel of the patient is punctured or not, so that repeated puncture is generated, the catheter tube wall is very thin, the repeated puncture can cause the catheter to be wrinkled, 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.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an intravenous transfusion indwelling needle and a grooved needle tube matched with the intravenous transfusion indwelling needle.
The aim of the invention is achieved by the following technical scheme:
a slotted needle cannula has a tubular body with an opening and a proximal end provided with a slot.
The grooved needle tube is applied to an intravenous transfusion remaining needle.
The utility model provides a needle is kept somewhere in intravenous infusion, includes interconnect's pipe subassembly and needle tubing subassembly, the pipe subassembly includes the pipe seat and fixes at its distal end, the pipe that is used for the infusion, the needle tubing subassembly includes pipe seat and needle tubing at least, the proximal end of needle tubing inserts and locates in the needle tubing seat, the distal end of needle tubing passes the cavity inside of pipe is stretched out, the needle tubing has the opening, its proximal end is provided with the fluting, the fluting is connected with the negative pressure source, the negative pressure source sets firmly in bottom one side of needle tubing seat, the interface of negative pressure source is passed through the fluting with the inside of needle tubing is switched on.
Preferably, the negative pressure source comprises 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 in the supporting frame.
Preferably, the software is provided with an interface which is clamped on the outer side of the needle tube and is wrapped outside the slot, and the interface and the slot are tightly matched to ensure tightness.
Preferably, a soft plug is arranged in the needle tube seat, and the soft plug is sleeved outside the needle tube.
Preferably, the catheter holder is connected to the infusion connection via a long catheter.
Preferably, a flow stopping clamp is arranged on the long guide pipe.
The beneficial effects of the invention are mainly as follows: the steel needle with a groove at the proximal end has better axial bending strength; the proximal end of the venous transfusion indwelling needle is provided with a negative pressure source to accelerate blood return so as to quickly determine whether the catheter is correctly stretched into a blood vessel, thereby being convenient and quick.
Drawings
The technical scheme of the invention is further described below with reference to the accompanying drawings:
fig. 1: an explosion schematic diagram of an embodiment of the invention;
fig. 2: schematic diagrams of embodiments of the present invention;
wherein: 1. a catheter holder; 2. a needle holder; 3. a needle tube; 31. an opening; 32. slotting; 4. a negative pressure source; 41. a software; 42. a support frame; 43. an interface; 5. a soft plug; 6. a long catheter; 7. injecting a transfusion joint; 8. and a flow stop clip.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. The embodiments are not limited to the present invention, and structural, methodological, or functional modifications of the invention from those skilled in the art are included within the scope of the invention.
In the description of the embodiments, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in the specific orientation, and thus are not to 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 scheme, the direction approaching the operator is the near end, and the direction separating from the operator is the far end, with reference to the operator.
As shown in fig. 1 to 2, the invention discloses an intravenous infusion indwelling needle, which comprises a catheter assembly and a needle tube assembly which are connected with each other, wherein the catheter assembly comprises a catheter seat 1 and a catheter 11 which is fixed at the distal end of the catheter assembly and is used for infusion, the needle tube assembly at least comprises a needle tube seat 2 and a needle tube 3, the proximal end of the needle tube 3 is inserted into the needle tube seat 2, and the distal end of the needle tube 3 penetrates through the hollow interior of the catheter 11 and extends out.
In order to smoothly reflux the blood in the needle tube 3, the needle tube 3 has an opening 31, the opening 31 is close to the needle tube opening of the needle tube 3, and when the blood is refluxed from the needle tube opening of the needle tube 3, the blood may be refluxed from the opening 31.
In order to avoid the situation that the blood pressure is too low and the blood cannot flow back, a groove 32 is arranged at the proximal end of the needle tube 3, and the groove 32 is connected with a negative pressure source 4. The slotted needle tube has better axial bending strength. The negative pressure source 4 is fixedly arranged at one side of the bottom of the needle tube seat 2, and the interface of the negative pressure source 4 is communicated with the interior of the needle tube 3 through the slot 32. Specifically, the negative pressure source 4 includes a hollow soft body 41 and a supporting frame 42 matched with the hollow soft body 41, the supporting frame 42 is fixedly connected with the bottom of the needle tube seat 2, and the hollow soft body 41 is arranged in 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 is wrapped outside the slot 32, and the two parts are tightly matched to ensure tightness. Of course, those skilled in the art will appreciate that the software 41 may be in communication with the slot 32 of the needle cannula 3 in other configurations to ensure a seal.
In this embodiment, the soft body 41 is made of transparent elastic plastic material, and other suitable materials can be used in other embodiments; the fixing means between the support frame 42 and the needle tube holder 2 may be an adhesive or an ultrasonic welding, or other equivalent means, and those skilled in the art will recognize that it is also possible to manufacture them integrally, so long as it is ensured that the software is accommodated therein. 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 squeeze out the air in the soft body; then the needle tube 3 is punctured into the blood vessel, at the moment, the soft body 41 is loosened, the soft body 41 is restored to generate negative pressure, if the blood successfully enters the blood vessel, blood rapidly returns to the blood vessel under the negative pressure and enters the soft body 41, and if the blood does not enter the blood vessel, the blood does not return. Thus, the blood can be quickly returned under the condition of insufficient blood pressure.
The inside of needle tubing seat 2 is provided with soft stopper 5, soft stopper 5 cover is located the needle tubing 3 is outside to ensure the leakproofness of inside of catheter seat 1. The catheter seat 1 is connected with the infusion connector 7 through a long catheter 6, and a flow stopping clamp 8 is arranged on the long catheter 6. These are prior art and are not of importance as described herein and are not repeated herein.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (4)
1. The utility model provides an intravenous infusion detaining needle, includes interconnect's pipe subassembly and needle tubing subassembly, the pipe subassembly includes catheter hub (1) and fixes at its distal end, is used for the pipe (11) of infusion, the needle tubing subassembly includes at least needle tube hub (2) and needle tubing (3), the proximal end of needle tubing (3) is inserted and is located in needle tube hub (2), the distal end of needle tubing (3) passes the cavity inside of pipe (11) and stretches out, its characterized in that: the needle tube (3) is provided with an opening (31), a slot (32) is formed in the proximal end of the needle tube, the slot (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 interior of the needle tube (3) through the slot (32); the negative pressure source (4) comprises hollow soft bodies (41) and supporting frames (42) matched with the hollow soft bodies, the supporting frames (42) are fixedly connected with the bottoms of the needle tube seats (2), and the hollow soft bodies (41) are arranged in the supporting frames (42); the soft body (41) is provided with an interface (43) which is clamped on the outer side of the needle tube (3) and wrapped outside the slot (32), and the two are tightly matched to ensure tightness.
2. The iv indwelling needle according to claim 1, wherein: the inside of needle tubing seat (2) is provided with soft stopper (5), soft stopper (5) cover is located needle tubing (3) outside.
3. The iv indwelling needle according to claim 1, wherein: the catheter seat (1) is connected with the infusion connector (7) through a long catheter (6).
4. An intravenous infusion indwelling needle according to claim 3, in which: the long guide pipe (6) is provided with a flow stopping clamp (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910034845.5A CN109646762B (en) | 2019-01-15 | 2019-01-15 | Grooved needle tube and intravenous infusion remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910034845.5A CN109646762B (en) | 2019-01-15 | 2019-01-15 | Grooved needle tube and intravenous infusion remaining needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109646762A CN109646762A (en) | 2019-04-19 |
| CN109646762B true CN109646762B (en) | 2024-04-05 |
Family
ID=66118862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910034845.5A Active CN109646762B (en) | 2019-01-15 | 2019-01-15 | Grooved needle tube and intravenous infusion remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109646762B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585520A (en) * | 2019-09-27 | 2019-12-20 | 苏州林华医疗器械股份有限公司 | Negative pressure type visible blood return retaining needle for jugular vein |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203724533U (en) * | 2013-11-19 | 2014-07-23 | 苏州林华医疗器械有限公司 | Long catheter of vein indwelling needle |
| WO2014201709A1 (en) * | 2013-06-18 | 2014-12-24 | 浙江康德莱医疗器械股份有限公司 | Safe, intravenous infusion indwelling needle component |
| CN204864352U (en) * | 2015-08-22 | 2015-12-16 | 北京大学深圳医院 | Prevent embolism vein and keep somewhere needle |
| CN205073412U (en) * | 2015-09-08 | 2016-03-09 | 北京大学深圳医院 | Venous indwelling needle |
| CN209848009U (en) * | 2019-01-15 | 2019-12-27 | 苏州林华医疗器械股份有限公司 | Slotted needle tube and intravenous infusion remaining needle |
-
2019
- 2019-01-15 CN CN201910034845.5A patent/CN109646762B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014201709A1 (en) * | 2013-06-18 | 2014-12-24 | 浙江康德莱医疗器械股份有限公司 | Safe, intravenous infusion indwelling needle component |
| CN203724533U (en) * | 2013-11-19 | 2014-07-23 | 苏州林华医疗器械有限公司 | Long catheter of vein indwelling needle |
| CN204864352U (en) * | 2015-08-22 | 2015-12-16 | 北京大学深圳医院 | Prevent embolism vein and keep somewhere needle |
| CN205073412U (en) * | 2015-09-08 | 2016-03-09 | 北京大学深圳医院 | Venous indwelling needle |
| CN209848009U (en) * | 2019-01-15 | 2019-12-27 | 苏州林华医疗器械股份有限公司 | Slotted needle tube and intravenous infusion remaining needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109646762A (en) | 2019-04-19 |
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