CN215231060U - Venous blood sampling retention device - Google Patents
Venous blood sampling retention device Download PDFInfo
- Publication number
- CN215231060U CN215231060U CN202120350975.2U CN202120350975U CN215231060U CN 215231060 U CN215231060 U CN 215231060U CN 202120350975 U CN202120350975 U CN 202120350975U CN 215231060 U CN215231060 U CN 215231060U
- Authority
- CN
- China
- Prior art keywords
- blood sampling
- indwelling needle
- blood
- indwelling
- infusion
- 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.)
- Expired - Fee Related
Links
- 238000010241 blood sampling Methods 0.000 title claims abstract description 38
- 230000014759 maintenance of location Effects 0.000 title description 2
- 239000008280 blood Substances 0.000 claims abstract description 38
- 210000004369 blood Anatomy 0.000 claims abstract description 38
- 238000001802 infusion Methods 0.000 claims abstract description 20
- 210000003462 vein Anatomy 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000001990 intravenous administration Methods 0.000 claims 4
- 238000013461 design Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a vein blood sampling indwelling device, including keeping somewhere needle subassembly, infusion joint and being used for connecting the pipe that keeps somewhere needle subassembly and infusion connect, blood sampling subassembly, first switch clamp, negative pressure device and second switch clamp have set gradually to the one side that the infusion connects by one side of keeping somewhere the needle subassembly on the pipe. The utility model has the advantages that the blood remained in the remaining needle is not required to be discarded when blood sampling is carried out through the ingenious structural design, and the part of blood can be infused back into the body of a patient after the blood sampling is finished; through the design of the reserved structure, a patient can take blood through the reserved needle when taking blood continuously, so that the puncture times of a person to be sampled are reduced, and the comfort level of the person to be sampled is increased; by combining infusion and blood sampling, one needle is multi-purpose, and the cost of blood sampling or infusion is reduced; greatly reducing the workload of medical staff.
Description
Technical Field
The utility model relates to the technical field, especially, relate to a venous blood sampling indwelling device.
Background
Continuous many times of venous blood sampling is clinical operation common in clinical treatment process, the blood taking needle that clinical commonly used at present is mostly disposable blood taking needle, to the patient of continuous many times of venous blood sampling, the patient feels painful increases, treatment cost increases, the puncture degree of difficulty increases along with the increase of puncture number of times, continuous many times's venous blood sampling simultaneously, the work load of blood sampling person has been increased, in order to solve this problem, just appear on the market utilizing and keep somewhere the blood sampling device that the needle carried out the blood sampling, but need discard the blood of keeping somewhere needle front end 2-5ml before the blood sampling, cause the waste of patient's blood.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to avoid prior art's weak point, provide a vein blood sampling indwelling device to effectively solve the weak point that exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a venous blood sampling indwelling device comprises an indwelling needle assembly, an infusion joint and a catheter for connecting the indwelling needle assembly and the infusion joint, wherein a blood sampling assembly, a first switch clamp, a negative pressure device and a second switch clamp are sequentially arranged on the catheter from one side of the indwelling needle assembly to one side of the infusion joint;
the blood sampling assembly comprises a shell seat, a cover body and a rubber plug, the shell seat is detachably connected with the cover body, a clamping groove for clamping the rubber plug is formed between the shell seat and the cover body, a blood collection cavity is arranged below the rubber plug in the shell seat, connecting parts for connecting with a catheter are arranged on two sides of the blood collection cavity, a step supporting rod is arranged in the middle of the blood collection cavity, a step surface of the step supporting rod is supported at the bottom of the rubber plug, the upper part of the step supporting rod penetrates through the rubber plug, and a limiting clamping protrusion is arranged on the top end of the step supporting rod and matched with the top surface of the rubber plug.
Further, the shell base is connected with the cover body through a thread structure.
Further, a protective cover is arranged on the cover body.
Further, the negative pressure device is a negative pressure bag.
Further, the indwelling needle assembly comprises a connecting seat and an indwelling needle soft sleeve, an indwelling needle core is inserted into the indwelling needle soft sleeve, a sealing plug is arranged in the connecting seat, the indwelling needle core passes through the sealing plug in a sealing mode, a connector used for being connected with a catheter is arranged on the connecting seat, the top end of the indwelling needle core is connected with a needle wing, and a sheath used for wrapping the indwelling needle core in the inner side is sleeved on the lower side of the connecting seat.
The above technical scheme of the utility model following beneficial effect has: the utility model has the advantages that the blood remained in the remaining needle is not required to be discarded when blood sampling is carried out through the ingenious structural design, and the part of blood can be infused back into the body of a patient after the blood sampling is finished; through the design of the reserved structure, a patient can take blood through the reserved needle when taking blood continuously, so that the puncture times of a person to be sampled are reduced, and the comfort level of the person to be sampled is increased; by combining infusion and blood sampling, one needle is multi-purpose, and the cost of blood sampling or infusion is reduced; greatly reducing the workload of medical staff.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of an indwelling needle assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural view of the blood collection assembly according to the embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-3, the venous blood collection indwelling device of the present embodiment comprises an indwelling needle assembly 1, an infusion connector 2 and a catheter 3 for connecting the indwelling needle assembly 1 and the infusion connector 2, wherein the catheter 3 is provided with a blood collection assembly 4, a first switch clamp 5, a negative pressure device 6 and a second switch clamp 7 in sequence from one side of the indwelling needle assembly 1 to one side of the infusion connector 2;
blood sampling subassembly 4 includes shell seat 401, lid 402 and plug 403, shell seat 401 and lid 402 detachable are connected and form the draw-in groove that is used for clamping plug 403 between the two, shell seat 401 is provided with blood sampling chamber 404 in the below of plug 403, the both sides of blood sampling chamber 404 are provided with the connecting portion 405 that is used for being connected with pipe 3, the middle part in blood sampling chamber 404 is provided with ladder vaulting pole 406, the ladder face of ladder vaulting pole 406 holds in the palm in the bottom of plug 403, the upper portion of ladder vaulting pole 406 is worn to connect in plug 403, the top of ladder vaulting pole 406 cooperation plug 403 is provided with spacing card protruding 407.
Through setting up ladder vaulting pole 406 and spacing protruding 407 of card, the draw-in groove between cooperation shell seat 401 and the lid 402 can play fine fixed action to plug 403, can avoid the in-process at the plug blood taking needle because the card that the deformation of plug 403 self arouses hinders the problem for the operation is simpler, convenient.
The housing base 401 and the cover 402 are connected by a screw structure, as shown in fig. 3, which includes an external thread provided on the housing base 401 and an internal thread provided on the cover 402.
The cover body 402 is provided with a protective cover 408, the protective cover 408 can be connected with the shell seat 401 by adopting a plastic film, when blood sampling is needed, the protective cover 408 is taken down, and after the blood sampling is finished, the protective cover 408 is covered.
The negative pressure device 6 is a negative pressure bag made of medical elastic material, and when the negative pressure bag is squeezed, the negative pressure bag can be flattened and can discharge the liquid or gas in the negative pressure bag, and when the external force disappears, the negative pressure bag can be restored to the original state by the elasticity of the negative pressure bag, and the liquid or gas can be sucked in through the negative pressure.
The indwelling needle assembly 1 comprises a connecting seat 101 and an indwelling needle soft sleeve 102, an indwelling needle core 103 is inserted into the indwelling needle soft sleeve 102, a sealing plug 104 is arranged in the connecting seat 101, the indwelling needle core 103 passes through the sealing plug 104 in a sealing manner, a connector 105 used for being connected with the catheter 3 is arranged on the connecting seat 101, the top end of the indwelling needle core 103 is connected with a needle wing 106, a sheath 107 used for coating the indwelling needle core 103 on the inner side is sleeved on the lower side of the connecting seat 101, and the using method of the indwelling needle assembly 1 comprises the following steps: the sheath 107 is removed, the vein of the patient is punctured by the indwelling needle core 103, after the puncture is completed, the indwelling needle core 103 is pulled out from the connecting seat 101 by the needle wing 106, and the plug 104 automatically seals the jack of the indwelling needle core 103 when the indwelling needle core is pulled out, so that a passage is formed among the indwelling needle soft sleeve 103, the connecting seat 101, the connector 105 and the catheter 3.
The utility model discloses a use method does:
before the whole device is used, the first switch clamp 5 and the second switch clamp 7 are in a closed state, the negative pressure device 6 is in a flattened state, and the inside of the negative pressure device is in vacuum;
1. when blood is collected after infusion, the infusion connector 2 is connected with an infusion tube, the second switch clamp 7 is opened firstly, so that the negative pressure device 6 is filled with liquid, then the first switch clamp 5 is opened, the whole pipeline is in a conducting state, and the normal infusion function is realized; when blood sampling is carried out, the first switch clamp 5 is closed firstly, the negative pressure device 6 is extruded, the second switch clamp 7 is closed after extrusion, the negative pressure device 6 is in a flattened state at the moment, then the first switch clamp 5 is opened, the negative pressure device 6 is gradually restored to the original state, during the recovery process, negative pressure is generated to suck the liquid and part of blood in the indwelling needle assembly 1 into the negative pressure device 6, this transfers the blood at the front end into the negative pressure means 6, and then pierces the rubber plug 403 of the blood collection set 4 with a blood collection needle, so that the blood taking needle enters the blood taking cavity 404 for taking blood, the first switch clamp 5 is in an open state in the blood taking process, after the blood taking is finished, the tube sealing liquid is used for sealing the tube, the second switch clamp 7 is closed, the negative pressure device 6 is extruded, the blood in the negative pressure device 6 flows back, then the first switch clamp 5 is closed, and the negative pressure device 6 is in a flattened state;
2. when transfusion is carried out after blood sampling, the first switch clamp 5 is opened after puncture, then blood sampling is carried out at the position of the blood sampling component 4, after the blood sampling is finished, the negative pressure device 6 is extruded, liquid or part of blood in the negative pressure device 6 is discharged into the indwelling needle assembly 1, then the first switch clamp 5 is closed, the transfusion connector 2 is connected with a transfusion tube, the second switch clamp 7 is opened, the liquid is full of the negative pressure device 6, then the first switch clamp 5 is opened, the whole pipeline is in a conducting state, and a normal transfusion function is realized.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (5)
1. The utility model provides a vein blood sampling indwelling device, includes indwelling needle subassembly, infusion connects and is used for connecting indwelling needle subassembly and infusion and connects the pipe which characterized in that: a blood sampling assembly, a first switch clamp, a negative pressure device and a second switch clamp are sequentially arranged on the catheter from one side of the indwelling needle assembly to one side of the infusion joint;
the blood sampling assembly comprises a shell seat, a cover body and a rubber plug, the shell seat is detachably connected with the cover body, a clamping groove for clamping the rubber plug is formed between the shell seat and the cover body, a blood collection cavity is arranged below the rubber plug in the shell seat, connecting parts for connecting with a catheter are arranged on two sides of the blood collection cavity, a step supporting rod is arranged in the middle of the blood collection cavity, a step surface of the step supporting rod is supported at the bottom of the rubber plug, the upper part of the step supporting rod penetrates through the rubber plug, and a limiting clamping protrusion is arranged on the top end of the step supporting rod and matched with the top surface of the rubber plug.
2. An intravenous blood collection indwelling device according to claim 1, wherein: the shell base is connected with the cover body through a threaded structure.
3. An intravenous blood collection indwelling device according to claim 1, wherein: the cover body is provided with a protective cover.
4. An intravenous blood collection indwelling device according to claim 1, wherein: the negative pressure device is a negative pressure bag.
5. An intravenous blood collection indwelling device according to claim 1, wherein: the indwelling needle assembly comprises a connecting seat and an indwelling needle soft sleeve, an indwelling needle core is inserted into the indwelling needle soft sleeve, a sealing plug is arranged in the connecting seat, the indwelling needle core passes through the sealing plug in a sealing mode, a connector used for being connected with a catheter is arranged on the connecting seat, the top end of the indwelling needle core is connected with a needle wing, and a sheath used for wrapping the indwelling needle core in the inner side is sleeved on the lower side of the connecting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120350975.2U CN215231060U (en) | 2021-02-08 | 2021-02-08 | Venous blood sampling retention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120350975.2U CN215231060U (en) | 2021-02-08 | 2021-02-08 | Venous blood sampling retention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215231060U true CN215231060U (en) | 2021-12-21 |
Family
ID=79501422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120350975.2U Expired - Fee Related CN215231060U (en) | 2021-02-08 | 2021-02-08 | Venous blood sampling retention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215231060U (en) |
-
2021
- 2021-02-08 CN CN202120350975.2U patent/CN215231060U/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 |
Granted publication date: 20211221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |