CN217408931U

CN217408931U - Hemodialysis internal fistula venous end puncture device of administering medicine in advance

Info

Publication number: CN217408931U
Application number: CN202221157271.4U
Authority: CN
Inventors: 柳永珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-09-13
Anticipated expiration: 2032-05-13

Abstract

The utility model discloses a hemodialysis internal fistula venous end piercing depth of dosing in advance, including pjncture needle and lumen, the tail end and the lumen fixed connection of pjncture needle are close to pjncture needle one end on the lumen and are equipped with the puncture part that is used for dosing in advance, are equipped with the syringe of being convenient for on the puncture part and male from the closed passage, are equipped with the closure piece from the closed passage outside, directly pour into the anticoagulant into here, reach the purpose of dosing in advance and practice thrift configuration medicine time and cost, labour saving and time saving.

Description

Hemodialysis internal fistula venous end puncture device of administering medicine in advance

Technical Field

The utility model relates to a hemodialysis field specifically is a hemodialysis internal fistula venous end piercing depth administers in advance.

Background

Most of dialysis centers use arteriovenous internal fistula puncture needles, blood can automatically coagulate when leaving human body during hemodialysis, and low molecular heparin prevents blood clot formation. The conventional low molecular weight heparin has a weight of 4000U or 6000U, and each low molecular weight heparin is mainly 0.4 ml. The puncture needle has the lumen length of 25cm, the diameter of 0.5cm and the lumen volume of 3ml, in order to ensure that the low molecular heparin enters blood as early as possible for whole-body heparin, the normal saline is clinically added into the medicine for dilution preparation, a 5ml or 10ml syringe is used for preparing 0.4ml of low molecular heparin stock solution into 4ml or 10ml of diluent, and the prepared dose is injected into the internal fistula vein puncture needle. However, the prepared anticoagulant diluent can only partially enter blood in advance, and does not meet the requirement of whole body heparinization in advance in blood purification standards. In addition, the workload of medicine allocation of nurses and the cost of consumable materials in departments are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a venous end puncture device for hemodialysis internal fistula for administration in advance, one end of the tube cavity of the utility model is connected with a puncture needle, and the other end is a heparin cap or a needle-free closed transfusion joint which is convenient to be repeatedly disconnected with other catheters; when the device is used, the physiological saline is injected into the tube cavity of the pre-filling puncture needle firstly, the puncture needle and the tube cavity are properly fixed when the skin of the internal fistula blood vessel of the patient is disinfected, the low molecular heparin stock solution is extracted by a 1ml syringe, the self-closing on the disinfection puncture part is communicated, and then the low molecular heparin stock solution is injected. A1 ml syringe is used, and the normal saline is not required for dilution, so that the consumable cost is reduced. And save nurse configuration time, labour saving and time saving.

In order to achieve the purpose of the invention, the utility model adopts the following technical scheme:

the utility model provides a hemodialysis internal fistula venous end piercing depth of giving medicine in advance, includes pjncture needle and lumen, and the tail end and the lumen fixed connection of pjncture needle are close to pjncture needle one end on the lumen and are equipped with the puncture part that is used for giving medicine in advance, are equipped with the syringe of being convenient for on the puncture part and insert from the closed passage, are equipped with the closure from the closed passage outside.

The puncture part comprises a puncture connector, a puncture needle head is fixedly connected with the tube cavity, and grooves are formed in two sides of the puncture connector.

The puncture connector is provided with a rubber block, the self-sealing channel is arranged on the outer side of the rubber block and does not penetrate through the rubber block, and the self-sealing channel is in a conical shape gradually decreasing from outside to inside.

The distance between the puncture connector and the puncture needle is 0.5-1 cm.

The puncture joint outside is equipped with the circular slot, and the circular slot is located from the closed passage outside, and the closure includes circular shape sealing block, and sealing block detachably arranges the circular slot in, and the sealing block outside is equipped with the pull ring of being convenient for pull out.

The tube cavity is provided with a flow stopping clip which is positioned at one side of the puncture joint.

Compared with the prior art, the hemodialysis internal fistula venous end puncture device of dosing in advance that has adopted above-mentioned technical scheme has following beneficial effect:

adopt the utility model discloses a hemodialysis internal fistula venous end piercing depth of dosing in advance, during the use, pour into the saline into earlier and fill pjncture needle lumen in advance, disinfect patient's internal fistula blood vessel skin puncture again, properly fix pjncture needle and lumen, 1ml syringe extraction low molecule heparin stoste, the self-closing on the disinfection puncture part leads to, pours into low molecule heparin stoste into again, because puncture needle one end is hugged closely to the puncture part, it is internal to make things convenient for low molecule heparin stoste to get into the patient in advance after pouring into, whole body heparinization as far as possible in advance. A1 ml syringe is used, and the normal saline is not required to dilute, so that the consumable cost is reduced. And save nurse configuration time, labour saving and time saving.

Drawings

Fig. 1 is a front view of an advanced administration hemodialysis internal fistula end puncture device.

Fig. 2 is a side view of an advanced administration hemodialysis internal fistula end puncture device.

Reference numerals: 1. puncturing needle; 2. a lumen; 3. a puncture joint; 31. a groove; 32. a rubber block; 33. a self-sealing channel; 34. a circular groove; 4. a sealing block; 41. a pull ring; 5. and (4) a flow stopping clamp.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 2, the hemodialysis internal fistula venous end puncture device for administration in advance comprises a puncture needle 1 and a lumen 2, wherein the tail end of the puncture needle 1 is fixedly connected with a transfusion tube, one end of the transfusion tube, which is close to the puncture needle 1, is provided with a puncture part for administration in advance, the puncture part is provided with a self-sealing channel 33 for facilitating the insertion of a syringe, and the outer side of the self-sealing channel 33 is provided with a sealing piece; the length of the transfusion tube of the utility model is 25cm, the diameter is 0.5cm, one end of the tube cavity 2 is connected with the puncture needle 1, and the other end is a needle-free closed transfusion joint which is repeatedly disconnected with the hemodialysis catheter; when the puncture needle is used, the physiological saline is injected into the pre-filling tube cavity 2, the puncture needle 1 and the infusion tube are properly fixed when the skin of the internal fistula of the patient is punctured, the low molecular heparin stock solution is extracted by the 1ml syringe, and then the extracted dose is injected into the self-closing tube on the puncture part. The distance between the puncture connector 3 and the puncture needle 1 is 0.5-1cm, and the puncture component is tightly attached to one end of the puncture needle 1, so that the low-molecular heparin stock solution can be conveniently and quickly injected into the body of a patient through the puncture needle 1 after being injected, the retention in the puncture needle 1 and the tube cavity 2 is reduced, and the whole body is heparinized in advance. A1 ml syringe is used, and the normal saline is not required for dilution, so that the consumable cost is reduced. And save nurse configuration time, labour saving and time saving.

The puncture part comprises a puncture connector 3, the puncture connector 3 is fixedly connected with the tube cavity 2, grooves 31 are formed in two sides of the puncture connector 3, and fingers are grabbed and fixed when the grooves 31 facilitate injection.

Be equipped with the block rubber 32 on the puncture connector 3, locate the block rubber 32 outside from closed passage 33, from closed passage 33 not run through block rubber 32, from closed passage 33 for the toper that reduces gradually from outside to inside, the syringe needle of syringe leads through from closed passage 33, pass block rubber 32 and get into in the lumen 2, then pour into the low molecule heparin stoste in the syringe into, it is internal to get into the patient fast after the injection into, reduce the delay in pjncture needle 1 and lumen 2, after the syringe is extracted, block rubber 32 is from closed, prevent that the liquid in the lumen 2 from revealing.

The length of the needle of the 1ml syringe is matched with the height of the rubber block 32, so that the needle is prevented from penetrating out of the other side to damage the infusion tube after penetrating into the tube cavity 2 through the self-sealing channel 33.

The outside of the puncture connector 3 is provided with a circular groove 34, the circular groove 34 is positioned outside the self-sealing channel 33, the sealing part comprises a circular sealing block 4, the sealing block 4 is detachably arranged in the circular groove 34, the outside of the sealing block 4 is provided with a pull ring 41 convenient to pull out, the circular groove 34 and the sealing block 4 are convenient to protect and protect the rubber block 32 and the self-sealing channel 33, and the rubber block is pulled out through the pull ring 41 during use.

The tube cavity 2 is provided with a flow stopping clip 5, the flow stopping clip 5 can move flexibly and is positioned at one side of the puncture connector 3, and the infusion tube can be closed or opened, so that the use is convenient.

The above description is a preferred embodiment of the present invention, and a person skilled in the art can make several modifications and improvements without departing from the principles of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a hemodialysis internal fistula venous end piercing depth of administering in advance, its characterized in that includes pjncture needle and lumen, and the tail end and the transfer line fixed connection of pjncture needle are equipped with the puncture part that is used for administering in advance near pjncture needle one end on the transfer line, are equipped with the syringe of being convenient for and insert from the closed passage on the puncture part, are equipped with the closure from the closed passage outside.

2. The advanced administration hemodialysis internal fistula venous end puncture device according to claim 1, wherein the puncture member comprises a puncture connector, the puncture connector is fixedly connected with the lumen, and grooves are formed in two sides of the puncture connector.

3. The advanced administration hemodialysis internal fistula venous end puncture device according to claim 2, wherein a rubber block is arranged on the puncture connector, the self-sealing passage is arranged outside the rubber block and does not penetrate through the rubber block, and the self-sealing passage is in a tapered shape gradually decreasing from outside to inside.

4. The advanced drug administration hemodialysis internal fistula venous end puncture device according to claim 3, wherein the distance between the puncture joint and the puncture needle is 0.5-1 cm.

5. The advanced administration hemodialysis internal fistula end puncture device as set forth in claim 4, wherein a circular groove is formed in the outer side of the puncture connector, the circular groove is formed in the outer side of the self-sealing passage, the sealing member comprises a circular sealing block, the sealing block is detachably arranged in the circular groove, and a pull ring facilitating pulling out is arranged on the outer side of the sealing block.

6. The advanced administration hemodialysis internal fistula venous end puncture device according to claim 5, wherein a flow stopping clip is arranged on the lumen and is positioned on one side of the puncture joint.