CN217908510U - Needle is kept somewhere to disconnect-type - Google Patents
Needle is kept somewhere to disconnect-type Download PDFInfo
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- CN217908510U CN217908510U CN202221494165.5U CN202221494165U CN217908510U CN 217908510 U CN217908510 U CN 217908510U CN 202221494165 U CN202221494165 U CN 202221494165U CN 217908510 U CN217908510 U CN 217908510U
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- needle
- seat
- catheter
- extrusion column
- plug
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Abstract
The scheme relates to the technical field of medical instruments, in particular to a separated type indwelling needle which comprises a catheter and a catheter seat, wherein an extension pipe joint is connected to the side wall of the catheter seat, a puncture needle penetrates through the catheter seat, and the puncture needle penetrates through the catheter; the end part of the puncture needle extends out of the catheter; a first isolating plug and a second isolating plug are arranged in the catheter seat; the second isolating plug is arranged close to the tail of the catheter seat; a blood containing cavity is arranged at the front end of the first isolating plug and is communicated with the extension pipe joint; an extrusion column is arranged in the blood containing cavity, the extrusion column is arranged in a hollow mode, and a puncture needle penetrates through the extrusion column; a plurality of reeds are arranged at the end part of the extrusion column, and a spring is arranged at the tail part of the extrusion column; the spring is propped against the extrusion column forwards, and after the puncture needle is pulled out, the reed of the end of the extrusion column is plugged into the inlet of the blood accommodating cavity. The utility model discloses the device has the advantage that the security is good.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to needle is kept somewhere to disconnect-type.
Background
The use of the indwelling needle can reduce the pain of the sick child caused by repeated venipuncture and the fear of needle injection, lighten the anxiety of parents, facilitate clinical medication, rescue medication of urgent and critical patients, lighten the workload of nurses and reduce the pain of the sick child, so that the intravenous indwelling needle is widely applied clinically, and in the face of the special group of the sick child, the length of the indwelling time of the intravenous indwelling needle and the comfort of the sick child become the most concerned problems of the nurses and the parents, and the indwelling needle is also the precondition of marking and popularizing the successful use of the indwelling needle.
The components of the indwelling needle core comprise a soft catheter/cannula which can be indwelling in a blood vessel, and a stainless steel puncture guiding needle core. When the indwelling needle is used, a catheter and the needle core are punctured into a blood vessel together, after the catheter completely enters the blood vessel, the needle core is withdrawn, and only the soft catheter is indwelling in the blood vessel so as to carry out infusion treatment.
The needle that keeps somewhere of disconnect-type includes the pipe and the catheter holder of integral type, and the pipe is along with the puncture needle puncture back of entering the blood vessel, and the pjncture needle can be extracted, but the needle is kept somewhere to disconnect-type among the prior art and causes the secondary damage in the needle body pulling out the in-process needle body maloperation reentrants catheter holder easily. Meanwhile, the needle body is easy to be touched by mistake after being pulled out, thereby causing damage to the human body.
SUMMERY OF THE UTILITY MODEL
To the weak point among the prior art, the utility model provides a novel disconnect-type keeps somewhere needle can solve the technical problem among the background art.
The technical scheme of the utility model as follows:
a separated indwelling needle comprises a catheter and a catheter seat, wherein an extension pipe joint is connected to the side wall of the catheter seat, a puncture needle penetrates through the catheter seat, and the puncture needle penetrates through the catheter;
the end part of the puncture needle extends out of the catheter;
a first isolating plug and a second isolating plug are arranged in the catheter seat;
the second isolating plug is arranged close to the tail part of the catheter seat;
a blood containing cavity is arranged at the front end of the first isolating plug and is communicated with the extension pipe joint;
an extrusion column is arranged in the blood containing cavity, the extrusion column is arranged in a hollow manner, and a puncture needle is arranged in the extrusion column in a penetrating manner;
a plurality of reeds are arranged at the end part of the extrusion column, and a spring is arranged at the tail part of the extrusion column;
the spring is pressed against the extrusion column forwards, and after the puncture needle is pulled out, the reed at the end of the extrusion column is plugged into the inlet of the blood containing cavity.
The utility model discloses the device preferred embodiment lies in, still be provided with the steel ball on the extrusion post end reed, steel ball and reed tip weld forming.
The utility model discloses the preferred implementation mode of the device lies in, form and isolate the cavity between second isolating plug and the said first isolating plug;
the first isolating plug and the second isolating plug are both high-elastic rubber blocks.
The utility model discloses the preferred embodiment of the device lies in, still be provided with long hose on the extension pipe connector, the end of long hose is provided with the connector stopper;
the joint plug is clamped into the extension pipe joint and is clamped with the extension pipe joint in an interference fit manner;
the joint plug is communicated with the long hose;
the other end of the long hose is provided with an infusion connector.
The utility model discloses the preferred embodiment of device lies in, still be provided with the pipe clamp on the long hose.
The utility model discloses the preferred embodiment of the device lies in, the end portion of pjncture needle is provided with returns the blood groove, it is the recess of seting up downwards to return the blood groove.
The utility model discloses the preferred embodiment of the device lies in, the afterbody of pipe seat still is provided with the safety cylinder, the safety cylinder includes shaft and connecting portion;
the connecting part is fastened to the outer wall of the catheter base in a threaded mode;
the puncture needle is connected with a needle seat, the needle seat is arranged in the safety cylinder in a penetrating way, and the needle seat is connected with the wing panel;
the safety cylinder is provided with a sliding groove, and the wing pieces extend out of the sliding groove;
a tension spring is further arranged in the safety cylinder, and connecting nails are arranged at two ends of the tension spring;
the connecting nail is connected with the needle seat and the inner wall of the safety cylinder.
The utility model discloses the preferred embodiment of the device lies in that a fixture block is arranged on the safety cylinder and is arranged at the front end of the chute;
the fixture block is provided with a convex block;
a clamping groove is formed in the wing;
the clamping blocks are provided with a pair, and the lug bosses on the clamping blocks clamp the wing pieces.
The beneficial effects of the utility model are that: the present case is kept somewhere the needle through the disconnect-type to current and is improved, increases an extrusion post at the appearance blood intracavity that keeps somewhere the needle, and this extrusion post passes through the spring extrusion, and this extrusion post middle part can be convenient for the pjncture needle to pass through, and the many leaf springs piece at this extrusion post end can be extruded into the import department that holds the blood chamber after the pjncture needle is extracted, and a plurality of steel balls on the reed contact each other seals for the pjncture needle can not follow in the blood chamber import gets into the pipe again. The utility model discloses the device has the advantage that the security is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the device of the present application.
Fig. 2 is a partially enlarged schematic view of fig. 1 in the device of the present invention.
Fig. 3 is a top view of the safety cylinder structure in the device of the present invention.
Figure 1, catheter hub; 11. a conduit; 2. a blood containing cavity; 3. an extension pipe joint; 4. a hose; 41. a joint plug; 42. a pipe clamp; 5. an infusion connector; 6. puncturing needles; 61. a blood returning groove; 62. a needle seat; 63. A fin; 631. a card slot; 7. a first isolation plug; 71. a second isolation plug; 72. an isolation chamber; 8. a safety cylinder; 81. a clamping block; 811. a bump; 82. a chute; 9. a tension spring; 91. a connecting nail; 10. extruding the column; 101. a reed; 102. steel balls; 103. a spring.
Detailed Description
The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, 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 present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1-3, the present embodiment provides a separated indwelling needle, which comprises a catheter 11 and a catheter holder 1, wherein an extension tube joint 3 is connected to the side wall of the catheter holder 1, a puncture needle 6 is arranged in the catheter holder 1, and the puncture needle 6 is arranged in the catheter 11;
the end part of the puncture needle 6 extends out of the catheter 11;
a first isolation plug 7 and a second isolation plug 71 are arranged in the catheter base 1;
the second isolation plug 71 is arranged close to the tail part of the catheter hub 1;
a blood containing cavity 2 is arranged at the front end of the first isolating plug 7, and the blood containing cavity 2 is communicated with the extension pipe joint 3;
an extrusion column 10 is arranged in the blood containing cavity 2, the extrusion column 10 is hollow, and the puncture needle 6 is arranged in the extrusion column 10 in a penetrating manner;
a plurality of reeds 101 are arranged at the end part of the extrusion column 10, and a spring 103 is arranged at the tail part of the extrusion column 10;
the spring 103 is pressed forwards against the extrusion column 10, and after the puncture needle 6 is pulled out, the reed 101 at the end of the extrusion column 10 is plugged into the inlet of the blood containing cavity 2.
The utility model discloses the implementation principle of device is: increase a squeeze column 10 in holding blood chamber 2 of keeping somewhere the needle, this squeeze column 10 extrudees through spring 103, and this squeeze column 10 middle part can be convenient for pjncture needle 6 to pass through, the multi-disc reed 101 of this squeeze column 10 end can be extruded into the import department of holding blood chamber 2 after pjncture needle 6 extracts, this moment under the spring 103 effect, hold the import in blood chamber 2 and be stopped up, pjncture needle 6 just is difficult to get into pipe 11 through holding 2 imports in blood chamber again, and then the injury that the maloperation of having avoided pulling out the needle brought the patient.
Further preferably, steel balls are arranged on the end springs 101 of the extrusion column 10, and the steel balls 102 are welded with the end parts of the springs 101.
In this embodiment, the steel balls 102 can be attached to each other and squeezed, so as to better block the inlet of the blood containing cavity 2.
Further preferably, an isolation cavity 72 is formed between the first isolation plug 7 and the second isolation plug 71;
the first isolation plug 7 and the second isolation plug 71 are both high-elastic rubber blocks.
Further preferably, a long hose 4 is further arranged on the extension pipe joint 3, and a joint plug 41 is arranged at the end head of the long hose 4;
the joint plug 41 is clamped into the extension pipe joint 3 and is clamped with the extension pipe joint 3 in an interference fit manner;
the joint plug 41 is communicated with the long hose 4;
the other end of the long hose 4 is provided with an infusion connector 5.
In the present embodiment, the joint plug 41 is engaged into the extension pipe joint 3, thereby facilitating the quick connection of the long hose 4.
Further preferably, the long hose 4 is further provided with a pipe clamp 42.
Preferably, a blood returning groove 61 is formed in the end of the puncture needle 6, and the blood returning groove 61 is a groove formed in the puncture needle 6 downwards.
In this embodiment, the blood returning groove 61 is provided to facilitate the accommodation of the blood at the needle tip position after the puncture needle 6 is pulled out, thereby avoiding the contamination problem caused by the overflow of the blood.
Further, a safety cylinder 8 is further arranged at the tail part of the catheter seat 1, and the safety cylinder 8 comprises a cylinder body and a connecting part;
the connecting part is screwed and fastened to the outer wall of the catheter hub 1;
the puncture needle 6 is connected with a needle seat 62, the needle seat 62 is arranged in the safety cylinder 8 in a penetrating way, and the needle seat 62 is connected with a wing panel 63;
the safety cylinder 8 is provided with a sliding groove 82, and the wing 63 extends out of the sliding groove 82;
a tension spring 9 is further arranged in the safety cylinder 8, and connecting nails 91 are arranged at two ends of the tension spring 9;
the connecting nail 91 is connected with the needle seat 62 and the inner wall of the safety cylinder 8.
In this embodiment, the safety cylinder 8 drives the needle seat 62 to slide, the needle seat 62 can pull the puncture needle 6 into the safety cylinder 8, and the sliding fin 63 of the needle seat 62 is pulled to move along the sliding groove 82 on the safety cylinder 8, so that the process of pulling out the puncture needle 6 is uniform and does not shake, and meanwhile, the puncture needle 6 is stored in the safety cylinder 8, and the needle head is prevented from being exposed to cause secondary harm to personnel.
Further, a fixture block 81 is further arranged on the safety cylinder 8, and the fixture block 81 is arranged at the front end of the sliding groove 82;
the fixture block 81 is provided with a convex block 811;
a clamping groove 631 is formed in the wing 63;
the locking blocks 81 are provided in a pair, and the protrusions 811 on the pair of locking blocks 81 hold the wing 63.
In the present embodiment, the stoppers 81 and the projections 811 are provided to hold the fins 63, thereby preventing the puncture needle 6 from wobbling during the puncturing step.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, particular embodiments, but rather to those skilled in the art, having the benefit of the teachings of the present invention, which is capable of numerous modifications and alternative forms, and will be readily apparent to those skilled in the art, and it is not intended to limit the invention to the details shown and described without departing from the general concepts defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a needle is kept somewhere to disconnect-type, includes pipe and pipe seat, be connected with extension coupling on the pipe seat lateral wall, its characterized in that: a puncture needle penetrates through the catheter seat and is arranged in the catheter;
the end part of the puncture needle extends out of the catheter;
a first isolation plug and a second isolation plug are arranged in the catheter seat;
the second isolating plug is arranged close to the tail of the catheter seat;
a blood containing cavity is arranged at the front end of the first isolating plug and is communicated with the extension pipe joint;
an extrusion column is arranged in the blood containing cavity, the extrusion column is arranged in a hollow mode, and a puncture needle penetrates through the extrusion column;
a plurality of reeds are arranged at the end part of the extrusion column, and a spring is arranged at the tail part of the extrusion column;
the spring is propped against the extrusion column forwards, and after the puncture needle is pulled out, the reed of the end of the extrusion column is plugged into the inlet of the blood accommodating cavity.
2. The detached type indwelling needle according to claim 1, wherein: and the end of the extrusion column is provided with a steel ball, and the steel ball is welded with the end of the reed.
3. The separated type indwelling needle according to claim 1, wherein: an isolation cavity is formed between the first isolation plug and the second isolation plug;
the first isolation plug and the second isolation plug are both high-elastic rubber blocks.
4. The detached type indwelling needle according to claim 1, wherein: the extension pipe joint is also provided with a long hose, and the end of the long hose is provided with a joint plug;
the joint plug is clamped into the extension pipe joint and is clamped with the extension pipe joint in an interference fit manner;
the joint plug is communicated with the long hose;
the other end of the long hose is provided with an infusion connector.
5. The detached type indwelling needle according to claim 4, wherein: and the long hose is also provided with a pipe clamp.
6. The separated type indwelling needle according to claim 1, wherein: the end part of the puncture needle is provided with a blood return groove which is a groove formed downwards by the puncture needle.
7. The separated type indwelling needle according to claim 1, wherein: the tail part of the catheter seat is also provided with a safety cylinder, and the safety cylinder comprises a cylinder body and a connecting part;
the connecting part is screwed and fastened to the outer wall of the conduit seat;
the puncture needle is connected with a needle seat, the needle seat is arranged in the safety cylinder in a penetrating way, and the needle seat is connected with the wing panel;
the safety cylinder is provided with a sliding groove, and the wing piece extends out of the sliding groove;
a tension spring is further arranged in the safety cylinder, and connecting nails are arranged at two ends of the tension spring;
the connecting nail is connected with the needle seat and the inner wall of the safety cylinder.
8. The detached type indwelling needle according to claim 7, wherein: the safety cylinder is also provided with a fixture block, and the fixture block is arranged at the front end of the sliding groove;
the fixture block is provided with a convex block;
a clamping groove is formed in the wing;
the clamping blocks are provided with a pair, and the lug bosses on the clamping blocks clamp the wing pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221494165.5U CN217908510U (en) | 2022-06-15 | 2022-06-15 | Needle is kept somewhere to disconnect-type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221494165.5U CN217908510U (en) | 2022-06-15 | 2022-06-15 | Needle is kept somewhere to disconnect-type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217908510U true CN217908510U (en) | 2022-11-29 |
Family
ID=84181743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221494165.5U Active CN217908510U (en) | 2022-06-15 | 2022-06-15 | Needle is kept somewhere to disconnect-type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217908510U (en) |
-
2022
- 2022-06-15 CN CN202221494165.5U patent/CN217908510U/en active Active
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