CN209863976U

CN209863976U - Hemodialysis puncture needle

Info

Publication number: CN209863976U
Application number: CN201821947616.XU
Authority: CN
Inventors: 李芷丹; 刘蕾; 刘丹; 李丹妮; 陈晓琼
Original assignee: Shenzhen Peoples Hospital
Current assignee: Shenzhen Peoples Hospital
Priority date: 2018-11-22
Filing date: 2018-11-22
Publication date: 2019-12-31
Anticipated expiration: 2028-11-22

Abstract

The utility model discloses a hemodialysis pjncture needle, including puncture entering arteriovenous blood vessel have syringe needle (10) of back hole (11), two rotatable needle wing pieces (30), have pipe (50) of adapter and communicating pipe (20) of intercommunication syringe needle (10) and pipe (50), needle wing piece (30) symmetry flexible connection is in communicating pipe (20) both sides, and needle wing piece (30) outside is equipped with fixed band (30), two one side that needle wing piece (30) are close to patient's skin is equipped with non-setting adhesive (35) respectively, thereby the free end of needle wing piece (30) is seted up and is had wing piece hole (33) to form horizontal pole (34), and wherein fixed band (40) are connected with self after passing wing piece hole (33), and the cover is on horizontal pole (34). The utility model discloses a hemodialysis pjncture needle with consolidate anticreep function simple structure is reliable, convenient to use.

Description

Hemodialysis puncture needle

Technical Field

The utility model belongs to the technical field of medical instrument, in particular to hemodialysis pjncture needle.

Background

Hemodialysis is one of the kidney replacement treatment modes of patients with acute and chronic renal failure. The blood is drained to the outside of the body, and in a dialyzer consisting of a plurality of hollow fibers, the blood and electrolyte solution (dialysate) with similar body concentration are arranged inside and outside one hollow fiber, and the substance exchange is carried out by the principles of dispersion, ultrafiltration, adsorption and convection, thereby removing the metabolic waste in the body, maintaining the balance of electrolyte and acid-base, simultaneously removing the excessive water in the body, and returning the purified blood.

After the dialysis puncture needle is successfully punctured by a patient, the puncture needle is fixed by using medical adhesive tapes conventionally at present, and a dialysis process needs to be carried out for several hours after the puncture needle is fixed. In the dialysis process, consciousness of a patient may be fuzzy and limbs may move disorderly, in addition, the blood at the blood inlet end has an outward pushing acting force on the needle head, the blood flow at the blood return end has a counterforce on the needle head, and the hemodialysis puncture needle is likely to be separated from the arteriovenous of the patient only by a single fixing mode of adhesion force of the medical adhesive tape. And because the dialysis ward has higher cleanliness requirement, the accompanying personnel such as family members of the patient and the like are generally not allowed to stay in the dialysis ward for a long time so as to avoid polluting the dialysis environment. In the dialysis process, after the self-consciousness of a patient is gradually blurred, the patient lacks self-rescue ability, and under the condition of no nursing of accompanying personnel, if a puncture needle is separated from the artery and vein of the patient and cannot be found in time, the patient can be lost at the blood loss speed (dialysis blood flow speed) of about 300ml/min, and the patient can be brought with life danger or even die in a few minutes, so that the consequence is very serious.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a hemodialysis pjncture needle with consolidate anticreep function.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a hemodialysis puncture needle comprises a needle head with a back hole, two rotatable needle wing panels, a catheter with an adapter and a communicating pipe for communicating the needle head and the catheter, wherein the needle head is used for puncturing an artery and vein blood vessel. Wherein the needle wing plates are symmetrically and flexibly connected with two sides of the communicating pipe, and the outer sides of the needle wing plates are provided with fixing belts; one surfaces of the two needle wing pieces close to the skin of the patient are respectively provided with non-setting adhesive, and the base paper on the non-setting adhesive extends to form a base paper stripping wing at the outer side far away from the communicating pipe; the other side of one needle wing piece is provided with a bulge, and the other needle wing piece is correspondingly provided with a groove matched with the bulge; the free end of the needle wing is provided with a wing hole so as to form a cross rod; the fixing band penetrates through the fin hole and then is connected with the fixing band, and the fixing band is sleeved on the cross rod.

In a further preferred scheme, the fixing belts are double layers, two first layer fixing belts used for binding with the limbs of the puncture part are relatively close to one surface of the adhesive sticker, and magic tapes connected with each other are arranged at the outer ends of two second layer fixing belts used for binding and adjusting the binding pressure.

In a further preferred scheme, the first layer of fixing belt and the second layer of fixing belt of each needle wing are formed by passing the same belt through wing holes and then folding the same belt in half around a cross rod, and the outer end close to the cross rod is an overlapping sewing part.

In a further preferred scheme, the fixing band of each needle wing is a single layer, the fixing band penetrates through the wing hole, and the end part of the fixing band bypasses the cross rod to be connected with the fixing band to form a seam.

Compared with the prior art, the utility model discloses there is following beneficial effect:

the utility model discloses a hemodialysis pjncture needle, its needle wing piece is flexible with the part that links to each other communicating pipe, the needle wing piece can carry out the rotation of certain angle, make the puncture skin surface of different profiles of needle wing piece can laminate, the skin surface that is close to the patient of needle wing piece is equipped with the non-setting adhesive, medical personnel peel off the base stock of non-setting adhesive in the same place when accomplishing the puncture, fix the pjncture needle on patient's skin surface, reduce the motion of pjncture needle, bind the function in the fixed band of needle wing piece both sides in addition, make the pjncture needle have the fixed guarantee of multilayer, it is more firm reliable, the possibility that greatly reduced pjncture.

In a further aspect, the hemodialysis puncture needle of the present invention has two needle wings, each of which can be selectively connected to a double-layer fixing band or a single-layer fixing band. When the double-layer fixing band is selected, the first layer can be knotted and fixed with each other to wrap and fix the puncture needle at the human body part, the second layer of fixing band is pasted with a magic tape, the wrapping force of the whole wrapping is convenient to adjust while the wrapping is fast, and the puncture needle is further prevented from falling off; when a layer of fixing belt is selected, knotting fixing or magic tape matching pasting can be selected.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a bottom view of the present invention;

10-needle head, 11-back hole, 20-communicating pipe, 30-needle wing piece, 31-bulge, 32-groove, 33-wing piece hole, 34-cross bar, 35-self-adhesive, 351-bottom paper, 3511-bottom paper stripping wing, 40-fixing belt, 41-first layer of fixing belt, 42-second layer of fixing belt, 421-magic tape and 50-catheter.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, a hemodialysis needle of the present invention comprises a needle head 10 with a back hole 11, a rotatable needle wing 30, a catheter 50 with a joint, and a communication tube 20 for communicating the needle head 10 and the catheter; the needle stem part of the needle head 10 is sleeved in one end pipe of the communicating pipe 20, the other end of the communicating pipe 20 is sleeved in one end pipe of the conduit 50, and the other end of the conduit 50 can be provided with a connector connected with a dialysis machine.

As shown in fig. 1, two needle wings 30 are symmetrically and flexibly connected to two sides of the communication tube 20, a protrusion 31 is disposed on the upper surface of one needle wing, a groove 32 adapted to the protrusion 31 is correspondingly disposed on the other needle wing, the protrusion 31 and the groove 32 can be connected together in a matching manner when the needle wings 30 are flexibly folded, and when a nurse pinches the puncture needle wing 30 with fingers, the protrusion 31 and the groove 32 are adapted relatively, so that the puncture angle can be conveniently and stably adjusted. The free end of the needle wing piece 30 is provided with a wing piece hole 33, a cross bar 34 is formed on the needle wing piece 30, and a fixing belt 40 is connected on the cross bar 34; the fixing belt 40 is formed by folding the same belt through the wing holes 43, and overlapping and sewing the outer end near the cross bar 34 to form a sewing part 43, so that the belt is sleeved on the cross bar 34 to form a double-layer fixing belt. In the double-layer fixing band, two first layer fixing bands 31 used for binding and binding the limb at the puncture part are close to one surface of the non-drying adhesive 35, and two second layer fixing bands 42 used for binding and adjusting the pressure of the binding are provided with magic tapes 421 connected with each other at the outer ends thereof.

As shown in fig. 2, the needle wing 30 is provided with a self-adhesive tape 35 on its surface, and the base paper 351 of the self-adhesive tape 35 is provided with a base paper peeling wing 3511. After the puncture needle is normally punctured, a medical worker slightly presses the needle eye with a medical cotton swab by one hand, lifts the needle wing piece 30 by the other hand, tears the bottom paper 351 of the self-adhesive sticker 35 from the bottom paper stripping wing 3511, sticks the needle wing piece 30 on the skin of a patient, and primarily fixes the puncture needle so that the puncture needle cannot move front and back and left and right; 2 first layer fixing belts 41 on two sides of the pull-out needle wing piece 30 are mutually bound and fixed to realize the fixation of the puncture needle and the limb; then 2 second layer fixing belts 42 on both sides of the needle wing 30 are pulled out to adjust the pressure to a proper state, and the two belts are connected with each other by a magic tape. The puncture needle can be accurately fixed in position by the multi-layer fixing mode, and is not easy to fall off. The fixing band 40 which passes through the wing piece hole 33 and is sleeved on the cross rod 34 does not cover the needle hole, thereby being beneficial to a nurse to observe the puncture needle in real time and actively coping with possible situations.

The utility model discloses can have different fixed band number of piles, as another kind of embodiment, can select the fixed band connected mode of only one deck. That is, after the fixing band 40 itself passes through the fin hole 33, the end of the fixing band is connected with itself to form the seam 43 by bypassing the cross bar 34, so that the fixing band 40 is sleeved on the cross bar 34 to form a single-layer fixing band. When setting up the individual layer fixed band, can set up the magic subsides of connecting of coordinating each other in the fixed band outer end, or directly bind and wrap up the knot.

Claims

1. A hemodialysis puncture needle comprises a needle head (10) with a back hole (11) for puncturing into an artery and vein blood vessel, two rotatable needle wing pieces (30), a catheter (50) with an adapter and a communicating pipe (20) for communicating the needle head (10) and the catheter (50), and is characterized in that the needle wing pieces (30) are symmetrically and flexibly connected to two sides of the communicating pipe (20), and a fixing belt (40) is arranged on the outer side of each needle wing piece (30);

one surfaces of the two needle wing pieces (30) close to the skin of the patient are respectively provided with a self-adhesive sticker (35), and a bottom paper stripping wing (3511) extends from the outer side of the bottom paper (351) on the self-adhesive sticker (35) far away from the communicating pipe (20); a bulge (31) is arranged on the other surface of one needle wing piece (30), and a groove (32) matched with the bulge (31) is correspondingly arranged on the other needle wing piece; the free end of the needle wing (30) is provided with a wing hole (33) so as to form a cross bar (34); the fixing belt (40) penetrates through the fin hole (33) and then is connected with the fin hole, and is sleeved on the cross rod (34).

2. A hemodialysis puncture needle according to claim 1, wherein the fixing bands (40) are double-layered, two first-layered fixing bands (41) for binding with the limb of the puncture site are relatively close to one side of the adhesive sticker (35), and two second-layered fixing bands (42) for binding and adjusting the pressure of the binding are provided at the outer ends thereof with magic tapes (421) connected to each other.

3. A hemodialysis needle according to claim 2, wherein the first layer of fastening tape (41) and the second layer of fastening tape (42) of each needle fin (30) are formed by folding the same tape passing through the fin hole (33) around the cross bar (34), and the outer end near the cross bar (34) is a superposed seam (43).

4. A hemodialysis needle according to claim 1, wherein the fixing band (40) of each needle fin (30) is a single layer, the fixing band (40) itself passes through the fin hole (33), and its end is connected to itself by bypassing the cross bar (34) to form a seam (43).