CN215191617U - Venous blood taking needle with sealing membrane structure - Google Patents

Abstract

The utility model discloses a blood taking needle with seal membrane structure, including blood taking needle, zero-pressure branch pipe, hose clamp and adhesive tape, its characterized in that: zero pressure branch pipe passes through three-way pipe fixed connection on the hose of blood sampling needle, and the hose that needle head one end was kept away from to zero pressure branch pipe and blood sampling needle is the contained angle between 30 to 60, and hose clamp detachable installs on the hose of zero pressure branch pipe, and the adhesive tape is pasted on the needle wing of blood sampling needle. The utility model adds the zero pressure branch pipe on the basis of the original vein blood taking needle, the end is provided with the packer, the built-in air-permeable water-absorbing packing membrane is arranged in the end of the packer, the end of the packer is provided with a plurality of small holes which are communicated with the atmosphere, when the puncture needle punctures into the vein, the blood can rapidly return under the action of the pressure in the vein, thereby judging the puncture position to be correct; be provided with the adhesive tape, can fix rapidly, prevent puncture needle displacement in the follow-up operation, perhaps the adhesive tape transportation in-process is contaminated and paste the effect not good.

Description

Venous blood taking needle with sealing membrane structure

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to venous blood taking needle with seal membrane structure.

Background

The venous blood sampling method is a method for extracting a certain amount of venous blood through a needle tube, mostly adopts a superficial vein positioned on the body surface, usually adopts an elbow vein, a hand back vein, an internal ankle vein or a femoral vein, can be used for collecting external jugular vein blood for children, and can select different types of injectors according to the blood sampling amount and be provided with corresponding needles. Some special tests, to avoid platelet activation, use plastic syringes and siliconized tubes or plastic tubes. For patients with great difficulty in puncture blood collection, such as thin vein, deep anatomical position, low peripheral blood volume and the like, nurses use the traditional vein blood collection needle for blood collection operation, firstly, the puncture needle head enters the blood vessel and sees the blood back, then, the collection needle head is connected with a vacuum test tube, however, because of the difficulty of puncture and high failure rate, the condition that blood cannot flow out smoothly at the beginning or in the middle is often encountered, at the moment, a nurse often selects the operation to separate the collecting needle head first, then the syringe without the needle is replaced, the position of the needle point in the blood vessel is adjusted by experience, then the syringe is drawn back, adjusting the needle point to an ideal position according to the pumping resistance, pumping the target amount of blood back into the injector, separating the puncture needle head and the injector after pulling the needle, connecting the injector needle head, puncturing the vacuum test tubes one by one, and allowing the blood in the injector to enter the vacuum test tubes to finish the blood sampling work.

However, the operation has the disadvantages that the disassembly and connection actions are repeated, so that pollution is easily caused, and the operation of nurses is inconvenient; and when the syringe needle directly pierces the vacuum test tube, the needle stick injury is easily caused.

The traditional puncture method is not easy to quickly judge whether the puncture is successful or not, and the situations of over-deep or over-shallow puncture, puncture deviation, repeated puncture and the like are easy to occur, so that subcutaneous tissues or blood vessels are damaged.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model designs a vein blood taking needle with a sealing diaphragm structure, which is additionally provided with a zero-pressure branch pipe on the basis of the original vein blood taking needle, the tail end of the zero-pressure branch pipe is provided with a packer, a sealing diaphragm for ventilating and absorbing water is arranged in the packer, the tail end of the packer is provided with a plurality of small holes which are communicated with atmosphere, after a puncture needle punctures into a vein, the packer is communicated with the atmosphere, and blood can rapidly return under the action of the pressure in the vein, thereby judging that the puncture position is correct; the adhesive tape is arranged at the needle wing position of the puncture needle, so that the puncture needle can be fixed at the first time after the puncture is correct, the puncture needle is prevented from displacing in the subsequent operation, or the adhesive tape is polluted in the transfer process and the pasting effect is poor.

In order to achieve the technical effects, the utility model discloses a realize through following technical scheme: the utility model provides a vein blood taking needle with seal membrane structure, includes vein blood taking needle, zero pressure branch pipe, hose clamp and adhesive tape, its characterized in that: zero pressure branch pipe passes through three-way pipe fixed connection on the hose of blood sampling needle, and the hose that needle head one end was kept away from to zero pressure branch pipe and blood sampling needle is the contained angle between 30 to 60, and hose clamp detachable installs on the hose of zero pressure branch pipe, and the adhesive tape is pasted on the needle wing of blood sampling needle.

Furthermore, the tail end of the zero-pressure branch pipe is fixedly connected with a packer, a sealing membrane is arranged in the packer, and a plurality of small holes are formed in the tail end of the packer.

Further, the sealing membrane has air permeability and water absorption performance.

Furthermore, the middle section of the adhesive tape is pasted on the needle wing of the needle head of the vein blood taking needle, and the adhesive tape is pasted with release paper.

Further, the hose clamp is a medical flow stopping catheter clamp.

The utility model has the advantages that:

the utility model designs a vein blood taking needle with a sealing membrane structure, which is characterized in that a zero-pressure branch pipe is added on the basis of the original vein blood taking needle, the tail end of the zero-pressure branch pipe is provided with a packer which is internally provided with a sealing membrane for ventilation and water absorption, and the tail end of the packer is provided with a plurality of small holes which are communicated with the atmosphere; the adhesive tape is arranged at the needle wing position of the puncture needle, so that the puncture needle can be fixed at the first time after the puncture is correct, the puncture needle is prevented from displacing in the subsequent operation, or the adhesive tape is polluted in the transfer process and the pasting effect is poor.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the state of the adhesive tape of the present invention;

FIG. 3 is a schematic diagram of the packer of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a venous blood collection needle; 2. a zero pressure manifold; 201. a packer; 202. sealing the diaphragm; 3. a hose clamp; 4. rubberized fabric.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Examples

Referring to fig. 1 to 3, a lancet with a sealing membrane structure includes a lancet 1, a zero pressure branch tube 2, a hose clamp 3 and an adhesive tape 4, and is characterized in that: zero pressure branch pipe 2 is through three-way pipe fixed connection on the hose of blood sampling needle 1, and zero pressure branch pipe 2 and blood sampling needle 1 keep away from the hose of syringe needle one end and be the contained angle between 30 to 60, and hose clamp 3 detachable installs on the hose of zero pressure branch pipe 2, and adhesive tape 4 pastes on the needle wing of blood sampling needle.

The tail end of the zero-pressure branch pipe 2 is fixedly connected with a packer 201, a sealing membrane 202 is arranged in the packer 201, the tail end of the packer 201 is provided with a plurality of small holes, the packer 201 is communicated with the atmosphere, blood can return rapidly under the action of the pressure in the venous blood vessel, and therefore the puncture position is judged to be correct.

The sealing membrane 202 has air-permeable and water-absorbing properties and is communicated with the atmosphere to prevent blood from flowing out of the packer 201 in the blood returning process.

The middle section of the adhesive tape 4 is adhered to the needle wing of the needle head of the venous blood collection needle 1, and the adhesive tape 4 is adhered with release paper, so that the puncture needle can be rapidly fixed after correct puncture.

The hose clamp 3 is a medical flow stopping catheter clamp.

The utility model discloses a vein blood taking needle with seal diaphragm structure, this design has increased zero pressure branch pipe 2 on the basis of original vein blood taking needle, and 2 ends of zero pressure branch pipe have set up packer 201, built-in seal diaphragm 202 of breathing in and absorbing water, and packer 201 ends set up a plurality of apertures, with atmosphere UNICOM, after the pjncture needle puncture gets into vein blood vessel, because packer 201 and atmosphere UNICOM, under the effect of the pressure in vein blood vessel, can return blood rapidly, judge puncture position from this correct; at pjncture needle wing position, be provided with adhesive tape 4, can fix the very first time after the puncture is correct, prevent puncture needle displacement in the follow-up operation, perhaps the adhesive tape transportation in-process is contaminated and paste the effect not good.

When the device is used, the hose clamp 3 on the zero-pressure branch pipe 2 is opened firstly, then puncture is carried out, after the needle head enters the vein correctly, blood can return rapidly under the action of blood pressure, the puncture position is judged to be correct at the moment, then the hose clamp 3 is closed, so that the hose clamp clamps the zero-pressure branch pipe 2, and the communication with the atmosphere is cut off; then the release paper on the adhesive tape 4 is torn off, and the needle head is fixed for subsequent operation.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (5)

1. The utility model provides a vein blood taking needle with seal membrane structure, includes vein blood taking needle, zero pressure branch pipe, hose clamp and adhesive tape, its characterized in that: zero pressure branch pipe passes through three-way pipe fixed connection on the hose of blood sampling needle, and the hose that needle head one end was kept away from to zero pressure branch pipe and blood sampling needle is the contained angle between 30 to 60, and hose clamp detachable installs on the hose of zero pressure branch pipe, and the adhesive tape is pasted on the needle wing of blood sampling needle.

2. The intravenous blood taking needle with the sealing membrane structure as claimed in claim 1, wherein the end of the zero pressure branch pipe is fixedly connected with a packer, a sealing membrane is arranged in the packer, and a plurality of small holes are arranged at the end of the packer.

3. An intravenous blood collection needle with a sealing membrane structure according to claim 2, characterized in that the sealing membrane has air-permeable and water-absorbing properties.

4. The lancet with sealing membrane structure of claim 1, wherein the middle section of the adhesive tape is adhered to the needle wing of the lancet needle, and the adhesive tape is adhered with a release paper.

5. An intravenous blood collection needle having a septum structure according to claim 1, wherein the hose clip is a medical flow stop catheter clip.

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