CN219462153U - Diameter-variable indwelling needle - Google Patents
Diameter-variable indwelling needle Download PDFInfo
- Publication number
- CN219462153U CN219462153U CN202320328893.7U CN202320328893U CN219462153U CN 219462153 U CN219462153 U CN 219462153U CN 202320328893 U CN202320328893 U CN 202320328893U CN 219462153 U CN219462153 U CN 219462153U
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- China
- Prior art keywords
- needle
- needle tube
- tube
- seat
- indwelling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a diameter-variable indwelling needle, which comprises an indwelling needle seat, wherein one side of the indwelling needle seat is connected with a heparin cap through a connecting hose, one end of the indwelling needle seat in the length direction is provided with a first needle tube, and the first needle tube is communicated with the indwelling needle seat; a second needle tube is movably arranged in the retaining needle seat; a push handle is arranged on the side wall of one end of the second needle tube, which is far away from the first needle tube, and one end of the push handle, which is far away from the second needle tube, extends out of the retaining needle seat through a through groove formed in the side wall of the retaining needle seat and is slidably arranged in the through groove; the through groove is detachably embedded with a sealing clamping strip; a puncture steel needle is detachably arranged on the retention needle seat, the needle head end of the puncture steel needle is positioned at the outer side of the retention needle seat, and the end part of the needle tip is positioned at the outer side of the first needle tube; the end part of one end of the retaining needle seat far away from the first needle tube is detachably provided with a sealing cap. The utility model can adopt the needle tube with small tube diameter for puncture during puncture, and replace the needle tube with large tube diameter for transfusion after the puncture is finished, thereby avoiding tube blockage.
Description
Technical Field
The utility model relates to the technical field of infusion tools, in particular to a diameter-variable indwelling needle.
Background
Infusion is a common treatment means, and is often applied to common infusion treatment or operation or rescue operation, the existing infusion tool is an infusion needle, the infusion needle has a disposable steel needle structure and also has a soft indwelling needle structure, at present, continuous infusion is generally required by the indwelling needle, the needle tube of the infusion needle is thick and thin, and the problems of the infusion needle are known, such as smooth liquid medicine circulation of the infusion needle with a small thickness, difficult tube blockage, and difficult puncture into blood vessels, especially for children with a small blood vessel, and easy puncture of the infusion needle with a small thickness, but the blood seepage phenomenon is easily caused due to the fact that the tube diameter is too small, and the conventional infusion needle is inconvenient to use, and the problems are particularly important in operation or ICU.
Disclosure of Invention
In view of the above, it is necessary to provide a variable diameter indwelling needle that uses a small-diameter needle tube for puncturing and that is replaced with a large-diameter needle tube for infusion after puncturing, thereby avoiding tube blockage.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the diameter-variable indwelling needle comprises an indwelling needle seat, wherein one side of the indwelling needle seat is connected with a heparin cap through a connecting hose, one end of the indwelling needle seat in the length direction is provided with a first needle tube, and the first needle tube is communicated with the indwelling needle seat; the inner diameter of the second needle tube is larger than that of the first needle tube, the outer diameter of the second needle tube is larger than that of the first needle tube, the second needle tube and the first needle tube are both hoses, the hardness of the second needle tube is larger than that of the first needle tube, and the first needle tube has elasticity; the side wall of one end of the second needle tube far away from the first needle tube is provided with a push handle, one end of the push handle far away from the second needle tube extends out of the indwelling needle tube through a through groove formed in the side wall of the indwelling needle tube, the push handle is slidably arranged in the through groove, the sliding direction is the length direction of the second needle tube, and the distance from the push handle to one end of the second needle tube far away from the push handle is not smaller than the distance from one end of the through groove close to the first needle tube to one end of the first needle tube far away from the indwelling needle tube, but not larger than the distance from one end of the through groove far away from the first needle tube to one end of the first needle tube connected with the indwelling needle tube; the through groove is detachably embedded with a sealing clamping strip, and the sum of the length of the sealing clamping strip and the dimension of the pushing handle along the sliding direction is equal to the length of the through groove; the needle head end of the puncture steel needle is positioned at the outer side of the indwelling needle seat, the needle head end of the puncture steel needle penetrates into the indwelling needle seat from one end of the indwelling needle seat far away from the first needle tube, the second needle tube and the first needle tube are sequentially penetrated, and the end part of the needle tip is positioned at the outer side of the first needle tube; the end part of the retaining needle seat, which is far away from the first needle tube, is detachably provided with a sealing cap, and the sealing cap and the puncture steel needle are not simultaneously arranged on the end part of the retaining needle seat, which is far away from the first needle tube.
Preferably, the sealing clamping strip is movably arranged on the detaining needle seat through a connecting sheet, the connecting sheet is arranged outside the detaining needle seat, one end of the connecting sheet is connected with the detaining needle seat, the other end of the connecting sheet is detachably connected with the detaining needle seat, and the connecting sheet covers the middle part of the length direction of the through groove when the two ends of the connecting sheet are connected with the detaining needle seat and is not contacted with the pushing handle; the sealing clamping strip is slidably mounted on the connecting sheet, and the sliding direction is the length direction of the through groove.
Preferably, the connecting piece is made of transparent material.
Preferably, the side of the through groove and the side of the connecting hose, which is connected with one end of the detaining needle seat, are not the same side of the detaining needle.
Preferably, the distance between the end part of the pushing handle arranged on the second needle tube and the pushing handle is smaller than the distance between the end of the first needle tube connected with the detaining needle seat and the end of the connecting hose connected with the detaining needle seat.
Preferably, the end part of the needle head end of the puncture steel needle is provided with a mounting seat, and a sealing cap is detachably arranged on the mounting seat.
Preferably, the sealing cap is movably mounted on the indwelling needle seat through a connecting rope.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model arranges the second needle tube in the detaining needle seat as a standby needle tube with large tube diameter, and the second needle tube can be inserted into the first needle tube under the action of the pushing handle after the puncture steel needle is withdrawn from the detaining needle seat, thereby expanding the infusion channel of the detaining needle, facilitating infusion and avoiding the phenomenon of tube blockage to influence the infusion.
2. The first needle tube has smaller tube diameter, can be matched with the puncture steel needle to puncture more conveniently and rapidly, improves the success rate of puncture, is particularly important for transfusion in the operation process and transfusion in the rescue process, greatly saves the puncture time, and ensures that the transfusion in the operation process and the rescue process is smoother due to the expansion effect of the second needle tube, and improves the treatment effect.
Drawings
FIG. 1 is a schematic view of the structure of the present utility model when not in use;
FIG. 2 is a schematic view of the seal clip of FIG. 1 shown in a configuration when removed from the channel;
FIG. 3 is a schematic view in partial cross-section of FIG. 1;
FIG. 4 is a schematic view of the structure of the steel needle of FIG. 3 when detached;
FIG. 5 is a schematic view of the structure of the second needle cannula of FIG. 4 with the first needle cannula inserted, i.e., the indwelling needle tip is in an extended state;
fig. 6 is an external schematic view of fig. 5, wherein the sealing clip strip is detached from the through slot.
Description of the main reference signs
In the figure: the needle holder 1, the connecting hose 2, the heparin cap 3, the first needle tube 4, the second needle tube 5, the pushing handle 6, the puncture steel needle 7, the mounting seat 8, the sealing cap 9, the connecting rope 10, the through groove 11, the sealing clamping strip 12 and the connecting sheet 13.
The utility model will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
Referring to fig. 1-6, in a preferred embodiment of the present utility model, a diameter-variable indwelling needle comprises an indwelling needle seat 1, wherein one side of the indwelling needle seat 1 is connected with a heparin cap 3 through a connecting hose 2, a first needle tube 4 is installed at one end of the indwelling needle seat 1 in the length direction, and the first needle tube 4 is communicated with the indwelling needle seat 1; the inner diameter of the second needle tube 5 is larger than that of the first needle tube 4, the outer diameter of the second needle tube 5 is larger than that of the first needle tube 4, the second needle tube 5 and the first needle tube 4 are both hoses, the hardness of the second needle tube 5 is larger than that of the first needle tube 4, and the first needle tube 4 has elasticity; the side wall of one end of the second needle tube 5 far away from the first needle tube 4 is provided with a push handle 6, one end of the push handle 6 far away from the second needle tube 5 extends out of the indwelling needle base 1 through a through groove 11 formed in the side wall of the indwelling needle base 1, the push handle 6 is slidably arranged in the through groove 11, the sliding direction is the length direction of the second needle tube 5, the distance from the push handle 6 to the one end of the second needle tube 5 far away from the push handle 6 is not smaller than the distance from the one end of the through groove 11 near the first needle tube 4 to the one end of the first needle tube 4 far away from the indwelling needle base 1, but not larger than the distance from the one end of the through groove 11 far away from the first needle tube 4 to the one end of the first needle tube 4 connected with the indwelling needle base 1; the through groove 11 is detachably embedded with a sealing clamping strip 12, and the sum of the length of the sealing clamping strip 12 and the dimension of the push handle 6 along the sliding direction is equal to the length of the through groove 11; the needle head end of the puncture steel needle 7 is positioned at the outer side of the indwelling needle seat 1, the needle tip penetrates into the indwelling needle seat 1 from one end of the indwelling needle seat 1 far away from the first needle tube 4, the second needle tube 5 and the first needle tube 4 are sequentially penetrated, and the end part of the needle tip extends to the outer side of the first needle tube 4; the end part of the retaining needle seat 1 far away from the first needle tube 4 is detachably provided with a sealing cap 9, and the sealing cap 9 and the puncture steel needle 7 are not simultaneously arranged on the end part of the retaining needle seat 1 far away from the first needle tube 4.
The utility model realizes the variable tube diameter of the remaining needle tube by arranging two needle tubes, namely the first needle tube 4 and the second needle tube 5, thereby facilitating puncture and transfusion, in particular: the pipe diameter of the first needle tube 4 is thinner, the pipe diameter of the second needle tube 5 is thicker, when the indwelling needle is in an initial state, the puncture steel needle 7 is arranged on the indwelling needle seat 1, the needle tip of the puncture steel needle 7 is positioned at the outer side of the indwelling needle seat 1 through the first needle tube 4, when in puncture, the needle tip of the puncture steel needle 7 can puncture and drive the first needle tube 4 to be inserted into a human blood vessel, after successful puncture, the puncture steel needle 7 is pulled out of the indwelling needle seat 1, and one end of the indwelling needle seat 1, far away from the first needle tube 4, is covered by the sealing cap 9, so that the indwelling needle seat 1 can be closed to realize subsequent transfusion; after sealing, the pushing handle 6 is pushed to insert the second needle tube 5 into the first needle tube 4, so that the diameter change during the infusion of the indwelling needle can be realized, the infusion channel is expanded, the infusion is smoother, and the possibility of blood seepage caused by tube blockage is reduced; in the utility model, the second needle tube 5 is accommodated in the retaining needle seat 1 when expansion is not needed, and is inserted into the first needle tube 4 by pushing the pushing handle 6 when expansion is needed, the pushing handle 6 is partially accommodated in the retaining needle seat 1, and partially extends out of the retaining needle seat 1 through the through groove 11 formed on the retaining needle seat 1, and the through groove 11 enables the inside and the outside of the retaining needle seat 1 to be communicated, therefore, the utility model can enable the retaining needle seat 1 to be in a sealing state by clamping the through groove 11 through the sealing clamping strip 12 and the pushing handle 6 together, and is convenient for liquid storage and transfusion.
Preferably, in this embodiment, in order to prevent the sealing strip from being lost after being detached, the sealing clamping strip 12 is movably mounted on the indwelling needle stand 1 through a connecting sheet 13, the connecting sheet 13 is disposed outside the indwelling needle stand 1, one end of the connecting sheet is connected with the indwelling needle stand 1, the other end of the connecting sheet is detachably connected with the indwelling needle stand 1, and the connecting sheet 13 covers the middle part of the through groove 11 in the length direction when two ends of the connecting sheet are connected with the indwelling needle stand 1 and is not contacted with the pushing handle 6; the sealing clamping strip 12 is slidably arranged on the connecting sheet 13, and the sliding direction is the length direction of the through groove 11; that is, the connecting piece 13 can stably connect the sealing clip strip 12 to the indwelling needle holder 1 to prevent the sealing clip strip 12 from being lost, and the connecting piece 13 can also cover the sealing clip strip 12 when the sealing clip strip 12 is clipped into the slot 11, thereby stably mounting the sealing clip strip 12 on the indwelling needle holder 1. Further preferably, the connecting piece 13 is made of transparent material, so as to facilitate checking the clamping condition of the sealing clamping strip 12.
Further, the side of the through groove 11 and the side of the connecting hose 2, which is connected with one end of the indwelling needle seat 1, are not the same side of the indwelling needle, so that the operation of the push handle 6 and the connecting hose 2 do not interfere with each other; the distance between the end part of one end of the push handle 6 of the second needle tube 5 and the push handle 6 is smaller than the distance between one end of the first needle tube 4 connected with the indwelling needle seat 1 and one end of the connecting hose 2 connected with the indwelling needle seat 1, so that the liquid medicine can smoothly enter the second needle tube 5 and be smoothly input into a human body.
Further, the end part of the needle head end of the puncture steel needle 7 is provided with a mounting seat 8, and a sealing cap 9 is detachably arranged on the mounting seat 8 so as to be arranged on the indwelling needle seat 1 when the sealing cap 9 is not connected with the end part of the indwelling needle seat 1, thereby preventing the puncture steel needle from being lost. It is further preferable that the sealing cap 9 is movably mounted on the indwelling needle hub 1 by a connecting cord 10 in order to prevent the detached sealing cap 9 from being lost.
The foregoing description is directed to the preferred embodiments of the present utility model, but the embodiments are not intended to limit the scope of the utility model, and all equivalent changes or modifications made under the technical spirit of the present utility model should be construed to fall within the scope of the present utility model.
Claims (7)
1. The utility model provides a keep somewhere needle of variable diameter, includes keeps somewhere the needle file, keep somewhere one side of needle file and link to each other its characterized in that with heparin cap through coupling hose: a first needle tube is arranged at one end of the detaining needle seat in the length direction, and the first needle tube is communicated with the detaining needle seat; the inner diameter of the second needle tube is larger than that of the first needle tube, the outer diameter of the second needle tube is larger than that of the first needle tube, the second needle tube and the first needle tube are both hoses, the hardness of the second needle tube is larger than that of the first needle tube, and the first needle tube has elasticity; the side wall of one end of the second needle tube far away from the first needle tube is provided with a push handle, one end of the push handle far away from the second needle tube extends out of the indwelling needle tube through a through groove formed in the side wall of the indwelling needle tube, the push handle is slidably arranged in the through groove, the sliding direction is the length direction of the second needle tube, and the distance from the push handle to one end of the second needle tube far away from the push handle is not smaller than the distance from one end of the through groove close to the first needle tube to one end of the first needle tube far away from the indwelling needle tube, but not larger than the distance from one end of the through groove far away from the first needle tube to one end of the first needle tube connected with the indwelling needle tube; the through groove is detachably embedded with a sealing clamping strip, and the sum of the length of the sealing clamping strip and the dimension of the pushing handle along the sliding direction is equal to the length of the through groove; the needle head end of the puncture steel needle is positioned at the outer side of the indwelling needle seat, the needle head end of the puncture steel needle penetrates into the indwelling needle seat from one end of the indwelling needle seat far away from the first needle tube, the second needle tube and the first needle tube are sequentially penetrated, and the end part of the needle tip is positioned at the outer side of the first needle tube; the end part of the retaining needle seat, which is far away from the first needle tube, is detachably provided with a sealing cap, and the sealing cap and the puncture steel needle are not simultaneously arranged on the end part of the retaining needle seat, which is far away from the first needle tube.
2. A variable diameter indwelling needle according to claim 1, in which: the sealing clamping strip is movably arranged on the detaining needle seat through a connecting sheet, the connecting sheet is arranged outside the detaining needle seat, one end of the connecting sheet is connected with the detaining needle seat, the other end of the connecting sheet is detachably connected with the detaining needle seat, and the connecting sheet covers the middle part of the length direction of the through groove when the two ends of the connecting sheet are connected with the detaining needle seat and is not contacted with the pushing handle; the sealing clamping strip is slidably mounted on the connecting sheet, and the sliding direction is the length direction of the through groove.
3. A variable diameter indwelling needle according to claim 2, in which: the connecting sheet is made of transparent materials.
4. A variable diameter indwelling needle according to claim 1, in which: the side of the through groove and the side of the connecting hose, which is connected with one end of the detaining needle seat, are not the same side of the detaining needle.
5. A variable diameter indwelling needle according to claim 1, in which: the distance between the end part of the second needle tube, which is provided with the pushing handle, and the pushing handle is smaller than the distance between the end of the first needle tube, which is connected with the detaining needle seat, and the distance between the end part of the second needle tube, which is provided with the pushing handle, and the end part of the second needle tube, which is connected with the detaining needle seat, is smaller than the distance between the end of the first needle tube, which.
6. A variable diameter indwelling needle according to claim 1, in which: the end part of the needle head end of the puncture steel needle is provided with an installation seat, and a sealing cap is detachably arranged on the installation seat.
7. A variable diameter indwelling needle according to claim 1, in which: the sealing cap is movably arranged on the retaining needle seat through a connecting rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320328893.7U CN219462153U (en) | 2023-02-27 | 2023-02-27 | Diameter-variable indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320328893.7U CN219462153U (en) | 2023-02-27 | 2023-02-27 | Diameter-variable indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219462153U true CN219462153U (en) | 2023-08-04 |
Family
ID=87441716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320328893.7U Active CN219462153U (en) | 2023-02-27 | 2023-02-27 | Diameter-variable indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219462153U (en) |
-
2023
- 2023-02-27 CN CN202320328893.7U patent/CN219462153U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |