CN202446639U

CN202446639U - PICC (Peripherally Inserted Central Catheter) backflow-resistant puncture needle

Info

Publication number: CN202446639U
Application number: CN201220041454XU
Authority: CN
Inventors: 王峻; 蒲骁麟
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-09
Filing date: 2012-02-09
Publication date: 2012-09-26
Anticipated expiration: 2022-02-09

Abstract

The utility model discloses a PICC (Peripherally Inserted Central Catheter) backflow-resistant puncture needle, which comprises a needle body (1) and a catheter sheath (2), wherein the needle body (1) comprises a needle pipe (3) and a needle cap (4), the length of the needle pipe (3) is less than that of the conduit sheath (2), and the conduit sheath (2) comprises an imbedding pipe (5) inserted into a human body and a connecting pipe (6) positioned outside the human body and used for connecting with an injector or a heparin cap. The PICC backflow-resistant puncture needle is characterized in that a backflow-resistant device (7) is arranged in the connecting pipe (6). The PICC backflow-resistant puncture needle has the advantages of simple structure, convenience for manufacture, wind applicability, and capability of eliminating the operation psychological burden of both the doctors and the patients.

Description

PICC anti-reflux puncture needle

Technical field

This utility model relates to a kind of medical apparatus and instruments, can directly medicinal liquid be transported to the conduit puncture needle at central vein place in especially a kind of chemicotherapy treatment, specifically a kind of PICC (periphery central venous catheter)The anti-reflux puncture needle.

Background technology

At present, along with the raising that the patient required quality of life, PICC (Peripherally Inserted Central Catheter, periphery central venous catheter) is as a kind of comfortable blood vessel access efficiently, obtains growing application clinical.

With compare through peripheral vein puncture transfusion repeatedly, PICC has its clear superiority:

1. avoid the repeated localised puncture of long-term transfusion outpatient, thereby reduced less patient suffering and iatrogenic wound, improved patient comfort and quality of life.

2. obviously reduce the phlebitis due to infusing.Section office such as internal medicine, surgery, oncology, emergency department, intensive care unit often need the input height to ooze or the zest medicinal liquid, if import through peripheral vein; The phlebitis incidence rate is high; If seepage occurs, also can cause local tissue damage, increase less patient suffering and financial burden.PICC then can avoid above-mentioned complication.

3. more clinical special medications need at short notice transfusion in a large number, and peripheral vein is little because of caliber, and blood flow is little, can't satisfy its requirement, and PICC then can reach the condition of quick transfusion.

With compare through the central vein puncture and intubation, the advantage of PICC is:

1. PICC is direct-view puncture down, and complication such as " being strayed into tremulous pulse, damage important organ " can not take place, and obviously improve than the safety through the central vein puncture and intubation, and success rate is also higher.

2. the PICC conduit can be kept somewhere one-year age, and through the catheter retaining time of central vein puncture and intubation maximum 3 months.

Because of point of puncture at peripheral vein, vein behind the PICC infects and is starkly lower than through central vein puncture and intubation postoperative, has reduced and has infected misery and the financial burden that brings.

4. for going out blood coagulation disorders patient, cervical region traumatic patient, thoracic injury patient, implement through central vein puncture and intubation Chang Wufa, this moment, PICC became the best, and was unique selection.

The disadvantage of existing P ICC equipment is, the effect of its puncture needle nonreactive blood reflux, thereby when implementing the PICC operation; 1. regular meeting causes the patient to lose blood, though experienced operators, when making the PICC art; The patient loses blood also at 10-20 milliliters; If patient operation is skilled inadequately, or the patient belongs to difficult operator, and the operation blood loss often can reach the 40-60 milliliter; 2. blood samples of patients is exposed in the air, has increased transmission of disease probabilities such as hepatitis, AIDS.

Summary of the invention

The purpose of this utility model is can not cause the problem of bleeding profusely to the puncture needle that uses in the existing P ICC operation because of there being anti-recirculation device, designs a kind of PICC anti-reflux puncture needle that can effectively prevent to backflow hemorrhage, simple in structure.

The technical scheme of this utility model is:

A kind of PICC anti-reflux puncture needle; It comprises needle body 1 and catheter sheath 2; Described needle body 1 is made up of needle tubing 3 and pin medicated cap 4; The length of needle tubing 3 is not less than the length of catheter sheath 2, and described catheter sheath 2 is formed by inserting intravital pipe 5 connection tube 6 that is used for linking to each other with syringe or calparine cap outer with being positioned at human body of inserting of people, it is characterized in that in the described connection tube 6 anti-reflux device 7 being installed.

Described anti-reflux device 7 is made up of check valve 8 and mount pad 9; Check valve 8 is made up of the valve body and the elasticity valve of band chimb; The elasticity valve links to each other with an end of valve body; The end that another of valve body has chimb is pressed on the diapire of mount pad 9, and the end that described elasticity valve is relative with the blood reflux direction is the sphere or the arc-shaped structure of evagination, is provided with the otch that needle tubing 3 passes of being convenient to of a unidirectional closure between wherein.

Described valve body is the valve body of elastic material, in this valve body, is equipped with to make it keep inflexible skeleton 10, between the diapire of skeleton 10 and mount pad 9, adds gasket seal 11.

Described mount pad 9 is made up of two parts, between two parts through being threaded.

The beneficial effect of this utility model:

This utility model is through adding the structure of an anti-reflux on the catheter sheath of common PICC puncture needle, therefore can avoid hemorrhage in the PICC operation technique, avoided causing iatrogenic injury to the patient, reduced simultaneously through the pathophorous chance of blood.

This utility model is simple in structure, and is easily manufactured, and the suitability is wide, can eliminate the operation psychological burden of doctor and patient.

Description of drawings

Fig. 1 is the structural representation of the puncture needle of this utility model.

Fig. 2 is the structural representation of the catheter sheath of this utility model.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment this utility model is further described.

Shown in Fig. 1-2.

A kind of PICC anti-reflux puncture needle, it comprises needle body 1 (Fig. 1) and catheter sheath 2 (Fig. 2), needle body 1 passes catheter sheath 2 in use and inserts in the human vein with catheter sheath; Described needle body 1 is made up of needle tubing 3 and pin medicated cap 4; The length of needle tubing 3 is not less than the length of catheter sheath 2, and described catheter sheath 2 is formed by inserting intravital pipe 5 connection tube 6 that is used for linking to each other with syringe or calparine cap outer with being positioned at human body of inserting of people, in described connection tube 6, anti-reflux device 7 is installed; Anti-reflux device 7 is made up of check valve 8 and mount pad 9; Mount pad 9 is made up of two parts, and through being threaded, check valve 8 is made up of the valve body and the elasticity valve of band chimb between two parts; The elasticity valve links to each other with an end of valve body; The end that another of valve body has chimb is pressed on the diapire of mount pad 9, and the end that described elasticity valve is relative with the blood reflux direction is the sphere or the arc-shaped structure of evagination, is provided with the otch that needle tubing 3 passes of being convenient to of a unidirectional closure between wherein.When described valve body adopts rigid material; Only needing in mount pad 9, to install a valve body adds a seal washer 11 and gets final product; When valve body adopts elastic material, make otch on the elasticity valve become to cause greatly in order to prevent valve body from receiving the crimp of the blood that backflows and backflow, should in valve body, be equipped with and make it keep inflexible skeleton 10; Between the diapire of skeleton 10 and mount pad 9, add gasket seal 11, as shown in Figure 2.

The method for using of this utility model during use, is found vein with existing not identical with the PICC puncture of anti-recirculation device earlier accurately; Earlier the needle tubing 3 with needle body 1 inserts in the catheter sheaths 2, and needle tubing 3 passes the elasticity valve and from catheter sheath 2, stretches out, and catheter sheath is fixed after thrusting vein; Needle tubing 3 is extracted out from catheter sheath 2, and at this moment, the elasticity valve is auto-closing under the elastic force effect; Because the elasticity valve is sphere or arc structure, need bigger strength to open it, and the active force of the pressure of the blood that backflows can't reach the degree that can open it far away from the top; Therefore along with the extraction of needle tubing 3, the blood that backflows after the elasticity valve is closed will terminate in elasticity valve place, and then the PICC pipe is passed the elasticity valve; The PICC pipe is delivered to assigned address, and the elasticity valve is wrapped on the PICC conduit, and blood can not ooze out.PICC tube head end is managed to such an extent that tail end withdraw from from PICC catheter sheath 2 after arriving central vein, and fixedly the PICC pipe gets final product again.When not infusing, available calparine cap is sealed the liquid feeding end of PICC pipe, during transfusion, only needs the PICC pipe is linked to each other and can infuse with infusion needle.

This utility model does not relate to all identical with the prior art prior art that maybe can adopt of part to be realized.

Claims

1. PICC anti-reflux puncture needle; It comprises needle body (1) and catheter sheath (2); Described needle body (1) is made up of needle tubing (3) and pin medicated cap (4); The length of needle tubing (3) is not less than the length of catheter sheath (2), and described catheter sheath (2) is formed by inserting intravital pipe (5) connection tube (6) that is used for linking to each other with syringe or calparine cap outer with being positioned at human body of inserting of people, it is characterized in that being equipped with in the described connection tube (6) anti-reflux device (7).

2. PICC anti-reflux puncture needle according to claim 1; It is characterized in that described anti-reflux device (7) is made up of check valve (8) and mount pad (9); Check valve (8) is made up of the valve body and the elasticity valve of band chimb; The elasticity valve links to each other with an end of valve body; The end that another of valve body has chimb is pressed on the diapire of mount pad (9), and the end that described elasticity valve is relative with the blood reflux direction is the sphere or the arc-shaped structure of evagination, is provided with the otch that needle tubing (3) passes of being convenient to of a unidirectional closure between wherein.

3. PICC anti-reflux puncture needle according to claim 2; It is characterized in that described valve body is the valve body of elastic material; In this valve body, be equipped with and make it keep inflexible skeleton (10), between the diapire of skeleton (10) and mount pad (9), add gasket seal (11).

4. PICC anti-reflux puncture needle according to claim 2 is characterized in that described mount pad (9) is made up of two parts, between two parts through being threaded.