CN216358572U

CN216358572U - Novel safe type hemodialysis pjncture needle

Info

Publication number: CN216358572U
Application number: CN202122526868.3U
Authority: CN
Inventors: 郑晓艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-04-22
Anticipated expiration: 2031-10-20

Abstract

The utility model relates to a novel safety type hemodialysis puncture needle which comprises a fixing plate, wherein an upper-layer needle cap and a lower-layer needle cap are respectively bolted on one side of the fixing plate, a long tongue piece is bolted on one side of the upper-layer needle cap, a puncture needle assembly is arranged at the bottom of the upper-layer needle cap, and the length of the upper-layer needle cap is greater than that of the lower-layer needle cap. According to the utility model, the needle stems are protected by arranging the upper needle cap and the lower needle cap, and the gauze rolls are pressed by matching with the long tongue sheets, so that when a medical worker removes the puncture needle, the index finger and the middle finger of one hand can hold the gauze rolls to press the needle holes, the thumb presses the long tongue sheets to fix the gauze rolls, the other hand removes the puncture needle assembly, after the puncture needle assembly is removed, the needle stems can retract into the upper needle cap and the lower needle cap to be stored, the whole operation is in place at one step, the risk of needle stick injury caused by secondary operation is avoided, and the puncture needle has the advantages of simple integral structure, low production cost and large clinical use requirement.

Description

Novel safe type hemodialysis pjncture needle

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a novel safety hemodialysis puncture needle.

Background

The puncture needle is a medical instrument for sampling and injecting tissues of various organs such as kidney, liver, lung, mammary gland, thyroid gland, prostate, pancreas, testis, uterus, ovary, body surface and the like in minimally invasive surgery.

Such as the utility model (hemodialysis puncture needle) applied by patent (CN202020062608.8) and Western Hospital 2020-10-13 of Sichuan university. The hemodialysis puncture needle comprises an end sleeve and a needle head, wherein the needle head comprises a protective sleeve, a spring, an outer sleeve, a connecting rib and a connecting sleeve; the outer sleeve is sleeved outside the end sleeve, a distance is reserved between the outer sleeve and the end sleeve, and the rear end of the outer sleeve is connected with the end sleeve through a connecting rib; the protective sleeve comprises a protective sleeve main body and a protective sleeve end plate connected to the front end of the protective sleeve main body, an axial groove is formed in the rear portion of the protective sleeve main body, the protective sleeve main body is located between the outer sleeve and the end sleeve, the outer sleeve is exposed out of the rear end of the protective sleeve main body, the axial groove prevents the connecting ribs from interfering with the protective sleeve main body, a first needle hole is formed in the protective sleeve end plate, a needle head passes through the first needle hole, and the first needle hole is matched with the needle head; the spring is arranged between the outer sleeve main body and the end sleeve, and two ends of the spring are respectively connected with the outer sleeve and the connecting rib; the connecting sleeve is detachably connected with the rear end of the protective sleeve main body and is abutted against the outer sleeve.

In conclusion, the hemodialysis puncture needle has high design cost and limited clinical use.

In addition, the safe anti-needle-stick hemodialysis puncture needle which is clinically used at present needs to be temporarily placed aside after a medical worker pulls out the puncture needle, the puncture needle can be retracted into the needle cap through secondary operation after the needle eye of a patient is treated, and the operation method still has the risk of needle stick injury.

Therefore, a new safety hemodialysis puncture needle is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel safety hemodialysis puncture needle aiming at the technical problems in the prior art, and solves the problems that the conventional hemodialysis puncture needle is high in cost, limited in clinical use and needs to be operated for the second time.

This patent is through setting up the needle stalk between upper needle cap and lower floor's needle cap, utilize upper needle cap and lower floor's needle cap to accomodate the needle stalk of pulling out, and cooperate long tongue slice supplementary medical staff to press the gauze book that is used for the blood on the needle eye, overcome present hemodialysis pjncture needle and involved with high costsly, the limited problem that needs the secondary to operate of clinical use, thereby medical staff's secondary operation to the needle stalk has been avoided, and holistic design simple structure, therefore, the carrier wave prepaid electric energy meter is low in cost, and the use can not receive the restriction of different needle lengths yet.

The technical scheme for solving the technical problems is as follows: the utility model provides a novel safe type hemodialysis pjncture needle, includes the fixed plate, one side of fixed plate is bolted respectively and is had upper needle cap and lower floor's needle cap, one side of upper needle cap is bolted and is had long tongue piece, the bottom of upper needle cap is equipped with the pjncture needle subassembly, the length of upper needle cap is greater than the length of lower floor's needle cap.

On the basis of the technical scheme, the utility model can be further improved as follows.

Furthermore, the puncture needle assembly comprises a needle stem, one end of the needle stem is communicated with a needle handle, and one end of the needle handle is communicated with an extension tube.

Furthermore, two needle wings are arranged at the top of the lower-layer needle cap, and one side of each needle wing, which is close to the needle handle, is bolted with the needle handle.

Furthermore, a through hole is formed in the fixing plate, and the inside of the through hole is sleeved with the surface of the extension pipe.

Furthermore, the upper layer needle cap and the lower layer needle cap are made of transparent plastic materials, and the needle wing is specifically a medical PE hose.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

according to the utility model, the needle stems are protected by arranging the upper needle cap and the lower needle cap, and the gauze rolls are pressed by matching with the long tongue sheets, so that when a medical worker removes the puncture needle, the index finger and the middle finger of one hand can hold the gauze rolls to press the needle holes, the thumb presses the long tongue sheets to fix the gauze rolls, the other hand removes the puncture needle assembly, after the puncture needle assembly is removed, the needle stems can retract into the upper needle cap and the lower needle cap to be stored, the whole operation is in place at one step, the risk of needle stick injury caused by secondary operation is avoided, and the puncture needle has the advantages of simple integral structure, low production cost and large clinical use requirement.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

fig. 4 is a side view of a fixation plate of the present invention.

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

1. the needle comprises a fixing plate, 2, an upper-layer needle cap, 3, a lower-layer needle cap, 4, a long tongue sheet, 5, a puncture needle assembly, 51, a needle stem, 52, a needle handle, 53, an extension tube, 6, a needle wing, 7 and a through hole.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-4, the present invention provides a technical solution: a novel safety hemodialysis puncture needle comprises a fixing plate 1, wherein an upper needle cap 2 and a lower needle cap 3 are respectively bolted on one side of the fixing plate 1, a needle stem 51 pulled out by medical staff can be put between the upper needle cap 2 and the lower needle cap 3 by arranging the upper needle cap 2 and the lower needle cap 3, so that the puncture needle assembly 5 does not need to be placed and operated by the medical staff for the second time, a long tongue sheet 4 is bolted on one side of the upper needle cap 2, the long tongue sheet 4 is arranged to fix the needle eye position of the patient in the needle pulling process so as to avoid the direct contact of the hands of the medical staff with the skin of the patient, a puncture needle assembly 5 is arranged at the bottom of the upper needle cap 2, the puncture needle assembly 5 is arranged to facilitate the puncture and dialysis work of the medical staff, the length of the upper needle cap 2 is larger than that of the lower needle cap 3, through the arrangement that the length of the upper layer needle cap 2 is longer than that of the lower layer needle cap 3, the part of the long tongue piece 4 with the length longer than that of the upper layer needle cap 2 can be directly contacted with the needle eye.

Firstly, because the upper layer needle cap 2 and the lower layer needle cap 3 are made of transparent plastic materials, a medical worker can directly observe the position of the needle point of the needle stalk 51 through the upper layer needle cap 2, secondly, the upper layer needle cap 2 is close to the far end direction of the needle point of the needle stalk 51, the length of the upper layer needle cap 2 is larger than that of the lower layer needle cap 3, one side of the upper layer needle cap 2 is also bolted with the long tongue sheet 4, the arrangement of the long tongue sheet 4 can lead the fingers of the medical worker to press the puncture point and can also be a stress point between the upper layer needle cap 2 and the lower layer needle cap 3 when the needle stalk 51 is pulled out, when the needle is pulled out, the lower layer needle cap 3 is moved to the needle handle 52 to lead the long tongue sheet 4 to reach the position above the needle eye of the patient, then the medical worker holds a gauze roll with one hand to press the needle eye, then presses the long tongue sheet 4 to lead the long tongue sheet 4 to press the gauze roll, and then pulls out the needle stalk 51 through the needle wing 6 with the other hand, after the needle stem 51 is separated from the skin of a patient, the needle stem 51 can retract to a position between the upper needle cap 2 and the lower needle cap 3, the needle stem 51 enters a position between the upper needle cap 2 and the lower needle cap 3 to complete the storage and removal of the needle stem 51 at one time, so that secondary operation is avoided, the needle stem 51 is protected by arranging the upper needle cap 2 and the lower needle cap 3, the gauze roll is pressed by matching with the long-tongue-shaped sheet 4, when a medical worker removes a puncture needle, the medical worker can hold the gauze roll with the index finger and the middle finger of one hand to press the needle eye, the big finger presses the long-tongue-shaped sheet 4 to fix the gauze roll, the other hand removes the puncture needle assembly 5, after the puncture needle assembly 5 is removed, the needle stem 51 retracts to the upper needle cap 2 and the lower needle cap 3 to be stored, the whole operation is in place at one step, the risk of needle puncture injury caused by secondary operation is avoided, and the whole structure is simple, low production cost and large clinical use requirement.

Referring to fig. 1, 2 and 3, the puncture needle assembly 5 includes a needle stem 51, one end of the needle stem 51 is connected to a needle handle 52, one end of the needle handle 52 is connected to an extension tube 53, and the puncture needle assembly 5 is used for hemodialysis and puncture of a patient.

Referring to fig. 1 and 2, two needle wings 6 are arranged at the top of the lower needle cap 3, one side of the needle wing 6 close to the needle handle 52 is bolted with the needle handle 52, and the needle wings 6 are arranged to facilitate the pulling of the needle stalk 51 by the medical staff, thereby facilitating the plugging and unplugging of the needle stalk 51 by the medical staff.

Referring to fig. 1 and 3, a through hole 7 is formed in the fixing plate 1, the inside of the through hole 7 is sleeved on the surface of the extension tube 53, and the extension tube 53 can move in the through hole 7 when the medical staff pulls the needle wing 6 through the arrangement of the through hole 7.

Referring to fig. 1, 2 and 3, the upper needle cap 2 and the lower needle cap 3 are made of transparent plastic, the needle wing 6 is specifically a medical PE hose, and the upper needle cap 2 and the lower needle cap 3 are made of transparent plastic, so that medical staff can observe whether the needle stalk 51 is located between the upper needle cap 2 and the lower needle cap 3, and can easily observe the needle eye position of a patient, and the needle wing 6 is made of medical PE hose, so that the needle wing 6 has certain toughness, and the needle wing 6 can be distorted and deformed, thereby preventing the needle stalk 51 from falling off.

The working principle is as follows: when the needle holder is used, the upper needle cap 2 and the lower needle cap 3 are made of transparent plastic materials, so that medical staff can directly observe the position of the needle point of the needle stem 51 through the upper needle cap 2, the long tongue sheet 4 is placed above the needle eye of a patient in the needle pulling process, then the medical staff presses the gauze roll onto the needle eye with the index finger and the middle finger of one hand at first, then the long tongue sheet 4 is pressed by the thumb, the long tongue sheet 4 can be pressed onto the gauze roll, then the needle stem 51 is directly pulled out by the other hand, after the needle stem 51 leaves the skin of the patient, the needle stem 51 can enter between the upper needle cap 2 and the lower needle cap 3, the needle stem 51 is protected through the upper needle cap 2 and the lower needle cap 3, and the operation that the medical staff carries out secondary treatment on the needle stem 51 is avoided.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel safe type hemodialysis pjncture needle, includes fixed plate (1), its characterized in that: an upper-layer needle cap (2) and a lower-layer needle cap (3) are respectively bolted on one side of the fixing plate (1), a long tongue piece (4) is bolted on one side of the upper-layer needle cap (2), a puncture needle assembly (5) is arranged at the bottom of the upper-layer needle cap (2), and the length of the upper-layer needle cap (2) is greater than that of the lower-layer needle cap (3).

2. The novel safety type hemodialysis puncture needle according to claim 1, wherein the puncture needle assembly (5) comprises a needle stem (51), one end of the needle stem (51) is communicated with a needle handle (52), and one end of the needle handle (52) is communicated with an extension tube (53).

3. The novel safety type hemodialysis puncture needle according to claim 2, wherein two needle wings (6) are arranged at the top of the lower layer needle cap (3), and one side of the needle wings (6) close to the needle handle (52) is bolted with the needle handle (52).

4. The novel safety type hemodialysis puncture needle according to claim 2, wherein a through hole (7) is formed in the fixing plate (1), and the inside of the through hole (7) is sleeved with the surface of the extension tube (53).

5. The novel safety type hemodialysis puncture needle according to claim 3, wherein the upper needle cap (2) and the lower needle cap (3) are made of transparent plastic materials, and the needle wing (6) is specifically a medical PE hose.