CN212997778U - Novel high pressure resistant remaining needle - Google Patents
Novel high pressure resistant remaining needle Download PDFInfo
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- CN212997778U CN212997778U CN202020394499.XU CN202020394499U CN212997778U CN 212997778 U CN212997778 U CN 212997778U CN 202020394499 U CN202020394499 U CN 202020394499U CN 212997778 U CN212997778 U CN 212997778U
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- needle
- component
- indwelling needle
- hose
- high pressure
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Abstract
The utility model discloses a novel high pressure resistant indwelling needle, which comprises an indwelling needle component, a transfusion component and a needle tube component, wherein the indwelling needle component and the transfusion component are connected through a hose; the hose is provided with an adjusting plate for sealing the hose; the needle tube component is arranged in the indwelling needle component and is detachably connected with the indwelling needle component, the rear part of the isolating plug is provided with a blocking piece for preventing the isolating plug from popping out under a high-pressure state, and the middle part of the blocking piece is provided with a through hole for facilitating the insertion of the needle tube component. The utility model discloses well setting up of blockking can play fine fixed action to the isolation stopper, and the setting of bell mouth can also avoid damaging the needle point of needle tubing when playing the guide effect to the needle tubing.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to novel needle is kept somewhere to high pressure resistant.
Background
The venous indwelling needle is mainly used for connecting a high-pressure syringe, belongs to a medical apparatus for venous indwelling transfusion, is applied to clinical venipuncture to take medicine or provide nutrition for a patient, can be used for multiple times, avoids blood vessel damage caused by multiple times of puncture, and greatly relieves the pain of the patient.
In the prior art, an isolation plug for puncture of a needle tube is arranged in a catheter seat of a high-pressure resistant indwelling needle, the traditional isolation plug is generally made of an integrated polyisoprene material, and the isolation plug is not firmly matched with an inner cavity of the catheter seat, so that the isolation plug is very easy to have poor pressure resistance under the pressure environment of more than 300 psi; in addition, due to the structure of the isolating plug, the needle tube is easy to be inserted and deviated or the needle tip of the needle tube is easy to damage during needle inserting.
SUMMERY OF THE UTILITY MODEL
Keep somewhere needle pressure resistance to current high pressure resistant low, insert the inconvenient problem of needle tubing, the utility model provides a novel needle is kept somewhere to high pressure resistant has solved current problem of keeping somewhere that needle pressure resistance is low, be unfavorable for the needle tubing plug.
For solving the above technical problem, the utility model discloses the technical scheme who adopts as follows:
a novel high pressure resistant indwelling needle comprises an indwelling needle component, an infusion component and a needle tube component, wherein the indwelling needle component is connected with the infusion component through a hose; the hose is provided with an adjusting plate for closing the hose; the needle tubing assembly is arranged in the indwelling needle assembly, the needle tubing assembly is detachably connected with the indwelling needle assembly, the rear part of the isolating plug is provided with a blocking piece for preventing the isolating plug from popping up, the middle part of the blocking piece is provided with a through hole for conveniently inserting the needle tubing, the through hole is a conical hole, the opening direction of the conical hole faces to the direction of the notch needle seat, the conical through hole facilitates the insertion of the needle tubing, and the conical hole plays a role in guiding the needle tubing assembly.
The central line of the through hole coincides with the central axis of the conduit, so that the liquid is convenient to transmit.
The blocking piece is provided with a clamping portion, and the blocking piece is clamped with the inner wall of the three-way guide pipe seat through the clamping portion.
The clamping part comprises a connecting plate and a clamping plate, the connecting plate is arranged between the blocking part and the clamping plate, two sides of the connecting plate are respectively and fixedly connected with the blocking part and the clamping plate vertically, and the clamping plate is arranged on the outer side of the blocking part; the clamping plate is clamped with the inner wall of the three-way conduit seat.
The barrier is made of polyethylene material.
The utility model has the advantages that: the arrangement of the blocking piece in the utility model can play a good role in fixing the isolating plug, and the arrangement of the conical hole can also avoid damaging the needle point of the needle tube while playing a role in guiding the needle tube; the utility model discloses simple structure uses common, with low costs, effectual of material, and the large-scale volume production that relatively is applicable to industrial production uses.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 front view of a barrier.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a rear view of fig. 1.
Fig. 4 is a perspective view of fig. 1.
Fig. 5 is a schematic structural diagram of the present invention.
In the figure, 1 is a heparin cap, 2 is an end cap, 3 is a connecting seat, 4 is a hose funnel, 5 is a hose, 6 is an adjusting plate, 7 is a notch needle seat, 8 is an isolating plug, 9 is a conduit funnel, 10 is a three-way conduit seat, 11 is a conduit, 12 is a needle tube, 13 is a blocking part, 13-1 is a clamping part, 13-2 is a through hole, 13-3 is a connecting plate, and 13-4 is a clamping plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious 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 any creative effort belong to the protection scope of the present invention.
Example 1: a novel high pressure resistant indwelling needle is shown in figure 5 and comprises an indwelling needle component, an infusion component and a needle tube component, wherein the indwelling needle component and the infusion component are connected through a hose 5; the hose 5 is provided with an adjusting plate 6 for adjusting to close the hose 5, and when the hose 5 needs to be closed, the adjusting plate 6 is moved; the needle tube assembly is arranged in the indwelling needle assembly and is detachably connected with the indwelling needle assembly, a blocking piece 13 for preventing the isolating plug 8 from popping up is arranged at the rear part of the isolating plug 8, and the blocking piece 13 plays a role in fixing the isolating plug 8; the middle part of the blocking piece 13 is provided with a through hole 13-2 which is convenient for inserting the needle tube assembly, the through hole 13-2 plays a role in guiding the needle tube assembly, the through hole 13-2 is a conical hole, and the opening direction of the conical hole faces the direction of the notch needle base 7. When the needle tube 12 is inserted from the direction of the notch hub 7, the tapered hole guides the needle tube 12 while preventing the needlepoint of the needle tube 12 from being damaged by the needlepoint insertion stopper 13.
The indwelling needle assembly comprises a three-way catheter seat 10, the needle tube assembly comprises a needle tube 12 and a notch needle seat 7, and the needle tube 12 is fixedly arranged in the middle of the notch needle seat 7; the infusion assembly comprises a connecting seat 3, in the embodiment, the connecting seat 3 is a three-way pipe, two ports of the three-way pipe are respectively connected with a heparin cap 1 and an end cap 2, and the third port of the three-way pipe is connected with one end of a hose 5 through a hose funnel 4; the hose funnel 4 is arranged in the three-way pipe; the other end of the hose 5 is connected with one port of the three-way catheter hub 10; the other two ports of the three-way catheter holder 10 are respectively provided with a catheter 11 and a notch needle holder 7, and the central axes of the catheter 11 and the notch needle holder 7 are superposed so as to facilitate puncture and liquid circulation; the three-way catheter base 10 is hollow, an isolating plug 8 and a catheter funnel 9 are arranged in the three-way catheter base 10, and the isolating plug 8 is used for isolating the inside of the three-way catheter base 10 from the outside to prevent pollution; the isolating plug 8 is arranged between the catheter funnel 9 and the notch needle base 7; the duct funnel 9 is sleeved at the rear part of the duct 11, and the duct funnel 9 is used for fastening the seal between the duct 11 and the three-way duct seat 10 and is beneficial to the insertion of the needle tube 12; the free end of the needle cannula 12 may be inserted into the barrier member 13, the septum 8 and the middle of the catheter 11 in that order to facilitate penetration of the skin.
The central line of the through hole 13-2 coincides with the central axis of the conduit 11, which facilitates the transmission of liquid and ensures that the liquid can enter the conduit 11 more smoothly through the through hole 13-2.
As shown in fig. 1-4, a clamping portion 13-1 is provided on the blocking member 13, and the blocking member 13 is clamped with the open-hole groove on the inner wall of the three-way catheter holder 10 through the clamping portion 13-1. In this embodiment, the number of the clamping portions 13-1 is four, and the four clamping portions 13-1 are uniformly distributed around the blocking member 13.
The clamping portion 13-1 comprises a connecting plate 13-3 and a clamping plate 13-4, the connecting plate 13-3 is arranged between the blocking piece 13 and the clamping plate 13-4, the left side and the right side of the connecting plate 13-3 are respectively and fixedly connected with the blocking piece 13 and the clamping plate 13-4 in a vertical mode, and the clamping plate 13-4 is arranged on the outer side of the blocking piece 13; the clamping plate 13-4 is clamped with the perforated groove of the three-way conduit seat 10 to fix the clamping part 13-1.
The barrier 13 is a barrier made of polyethylene material.
Example 2: the present embodiment is different from embodiment 1 in that the structure of the engaging portion 13-1 is different.
In this embodiment, the clamping portion 13-1 includes a hook I, the hook I is fixedly disposed on one side of the blocking member 13 away from the conduit 11, a hook II matched with the hook I is disposed in the three-way conduit seat 10, and the hook I and the hook II are matched to fix the blocking member 13. In addition, the inner walls of the clamping hook I, the clamping hook II and the three-way catheter seat 10 can be reinforced by a glue injection method, so that the pressure resistance of the indwelling needle is improved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A novel high pressure resistant indwelling needle comprises an indwelling needle component, an infusion component and a needle tube component, wherein the indwelling needle component and the infusion component are connected through a hose (5); an adjusting plate (6) for closing the hose (5) is arranged on the hose (5); the needle tube component is arranged in the indwelling needle component and is detachably connected with the indwelling needle component, and the needle tube component is characterized in that a blocking piece (13) used for preventing the isolating plug (8) from popping up in a high-pressure state is arranged at the rear part of the isolating plug (8), a through hole (13-2) convenient for the needle tube component to insert is arranged in the middle of the blocking piece (13), the through hole (13-2) is a conical hole, and the opening direction of the conical hole faces the direction of the notch needle seat (7).
2. The new high pressure resistant indwelling needle according to claim 1, wherein the central line of the through hole (13-2) coincides with the central axis of the catheter (11).
3. The novel high pressure resistant indwelling needle according to claim 1 or 2, wherein the blocking member (13) is provided with a clamping portion (13-1), and the blocking member (13) is clamped with the inner wall of the three-way catheter holder (10) through the clamping portion (13-1).
4. The novel high pressure resistant indwelling needle according to claim 3, wherein the clamping portion (13-1) comprises a connecting plate (13-3) and a clamping plate (13-4), the connecting plate (13-3) is arranged between the blocking member (13) and the clamping plate (13-4), two sides of the connecting plate (13-3) are respectively and fixedly connected with the blocking member (13) and the clamping plate (13-4) vertically, and the clamping plate (13-4) is arranged at the outer side of the blocking member (13); the clamping plate (13-4) is clamped with the inner wall of the three-way guide pipe seat (10).
5. The new high pressure resistant indwelling needle according to claim 1 or 4, wherein the barrier (13) is a barrier made of polyethylene material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202020394499.XU CN212997778U (en) | 2020-03-25 | 2020-03-25 | Novel high pressure resistant remaining needle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202020394499.XU CN212997778U (en) | 2020-03-25 | 2020-03-25 | Novel high pressure resistant remaining needle |
Publications (1)
Publication Number | Publication Date |
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CN212997778U true CN212997778U (en) | 2021-04-20 |
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CN202020394499.XU Active CN212997778U (en) | 2020-03-25 | 2020-03-25 | Novel high pressure resistant remaining needle |
Country Status (1)
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CN (1) | CN212997778U (en) |
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2020
- 2020-03-25 CN CN202020394499.XU patent/CN212997778U/en active Active
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