CN220070442U

CN220070442U - A seal wire device for PICC pipe dystopy is adjusted

Info

Publication number: CN220070442U
Application number: CN202321240723.XU
Authority: CN
Inventors: 段丽娟; 赵路; 张萌; 韩兰; 顾园
Original assignee: Beijing Chaoyang Hospital
Current assignee: Beijing Chaoyang Hospital
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2023-11-24
Anticipated expiration: 2033-05-22

Abstract

The utility model relates to a guide wire device for ectopic adjustment of a PICC catheter, wherein the guide wire comprises a soft section and a flexible section connected with the soft section, and the hardness of the flexible section is greater than that of the soft section; the connecting pipe is connected with the end part of the flexible section of the guide wire; the inside of the connector is provided with a through channel, part of the connecting pipe is inserted into one end of the channel, and the other end of the channel is used for being connected with an external injector; this seal wire device passes through connecting pipe and connector, when being connected with PICC pipe, can prevent that the seal wire from sliding into the pipe, has improved the result of use, is fit for adjusting the ectopic pipe.

Description

A seal wire device for PICC pipe dystopy is adjusted

Technical Field

The utility model relates to a guide wire device for PICC catheter ectopic adjustment.

Background

Currently, PICC (peripherally inserted central catheter) is a widely used infusion set for the infusion of a variety of irritating fluids, such as chemotherapeutic agents, vasoactive agents, TPN (intravenous hypernutrition), etc. The PICC catheter can effectively protect blood vessels of patients, ensure effective input of clinical liquid medicine, enable the patients to be cured in time, promote health of the patients and prolong life of the patients. However, due to differences in experience and level of placement of the PICC catheter by the clinical nurse, when the catheter is placed without clinically combining ECG (electrocardiogram) with ultrasound, the occurrence of catheter ectopic is found after the PICC guidewire is removed. Because PICC catheters are expensive and the puncturing procedure is a invasive procedure, the patient is painful, and in order to save costs and reduce patient pain, the clinician typically chooses to adjust the catheter after finding that the catheter is ectopic.

In the prior art, most of PICC catheters used in clinic are made of medical silica gel, and the catheters are soft and have no stimulation to blood vessels and basically have no sense of existence after being placed. The step of adjusting the ectopic catheter is typically: firstly, withdrawing the catheter part so that only a catheter with the length of 15cm remains in the blood vessel of the patient; after the withdrawn catheter has been sterilized, the catheter is gently again brought to the intended location. However, since the medical silicone is too soft, it is difficult to re-deliver the tube, and it is difficult to deliver the catheter, particularly, the subcutaneous tissue tunnel portion, even if the tube is delivered while the physiological saline is injected. Some clinicians use a guidewire within the PICC catheter just withdrawn, but because the guidewire is strictly disabled once it is withdrawn from the catheter, there is an increased risk of infection in the patient from reuse.

If the guide wire in the Seldinger (Seldinger) bag is used for adjusting the ectopic catheter, as the Seldinger (Seldinger) bag is a comprehensive bag of a tube placing object, the number of the inner types is more, the overall cost is high, the cost of adjustment is increased only by using the guide wire in the bag, and a device for preventing the guide wire from sliding into the catheter is not arranged at the tail end of the guide wire in the bag; and the intubation needs to be carried out again, so that the use cost is increased, and pain is caused to a patient.

Disclosure of Invention

In view of at least one of the above problems in the prior art, an object of the present utility model is to provide a guide wire device for ectopic adjustment of a PICC catheter, which can prevent the guide wire from sliding into the catheter, improve the use effect, and is suitable for adjusting the ectopic catheter.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a guidewire device for PICC catheter ectopic adjustment, comprising:

a guidewire comprising a soft segment and a flexible segment connected thereto, the flexible segment having a hardness greater than the hardness of the soft segment;

a connecting tube connected to an end of the flexible segment;

the connector is internally provided with a penetrating channel, a part of the connecting pipe is inserted into one end of the channel, and the other end of the channel is used for being connected with an external syringe.

Preferably, the connector is provided with external threads on the outer side of the end connected with the external syringe.

Preferably, a step is arranged in the middle of the outer wall of the connector.

Preferably, the connecting head is provided with anti-skid patterns on the outer wall of one end connected with the connecting pipe.

Preferably, the end face of the connecting head connected with the connecting pipe is provided with a groove.

Preferably, the groove is a circular groove, and an internal thread is arranged in the groove.

Preferably, the end of the flexible segment passes through the connection tube, and the portion thereof protruding from the connection tube is connected to the outer wall of the connection tube.

Preferably, the connecting pipe is a metal pipe, the end part of the flexible section is a metal piece, and the metal piece is welded and connected with the outer wall of the connecting pipe.

Preferably, scale marks are arranged on the guide wire.

Due to the adoption of the technical scheme, the utility model has the following advantages:

1. the guide wire device for the ectopic adjustment of the PICC catheter improves the guide wire in the prior art into a soft section and a flexible section which are integrally connected, and the flexible section is connected with a connecting pipe; connecting the connecting pipe with the connector, wherein the connector can be connected with an injection port of the connecting injector; the guide wire device can be convenient for sleeve the PICC guide wire outside the guide wire, is convenient for connect the PICC guide wire through the connecting pipe, prevents the guide wire from sliding into the PICC guide wire, is convenient for judge whether the PICC guide wire is unobstructed through syringe drawing back blood, and is also convenient for inject normal saline through the syringe; the utility model has the advantages of its overall structure is firm and easy and simple to handle, and the doctor that has clinical catheterization ability can normal use after simple training or reading the description, improves result of use, improves clinical catheterization success rate, is convenient for adjust the ectopic pipe.

2. The guide wire device for the ectopic adjustment of the PICC catheter can be matched with the PICC catheter with or without the decompression sleeve, so that one guide wire can be connected with two PICC catheters with different interfaces, the application range can be enlarged, and the clinical requirements can be better met.

3. The guide wire device for the PICC catheter ectopic adjustment is connected with the outer wall of the connecting pipe through welding of the outer wall of the end part of the flexible section, so that the guide wire is further ensured to be firmly connected with the connecting pipe, and the guide wire is ensured to be effectively prevented from sliding into the catheter.

Drawings

Fig. 1 is a schematic structural view of a guide wire device for PICC catheter ectopic adjustment according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of a guidewire device for ectopic adjustment of a PICC catheter provided in one embodiment of the present utility model.

The reference numerals in the drawings:

1 is a guide wire, 101 is a soft section, 102 is a soft section, 2 is a connecting pipe, 3 is a connecting head, 301 is a step, 302 is a groove, and 303 is a channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "front", "rear", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The guide wire device for the PICC catheter ectopic adjustment is characterized in that a flexible section and a flexible section are integrally connected through improvement of a guide wire, and the flexible section is connected with a connecting pipe; the connecting pipe is connected with the connector, wherein the connector is used for connecting with the injector; the front end of the connecting pipe is connected with the rear end of the PICC catheter, so that the guide wire can be prevented from sliding into the catheter, whether the PICC catheter is unobstructed or not can be conveniently judged by drawing back blood through the syringe, and physiological saline can be conveniently injected through the syringe; the guide wire device has the advantages of low cost, convenient use, good use effect and convenient adjustment of the ectopic catheter.

Hereinafter, embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

Examples

Referring to fig. 1 to 2 in combination, the present embodiment provides a guide wire device for ectopic adjustment of a PICC catheter, which includes:

a guide wire 1 comprising a flexible section 101 and a flexible section 102 connected thereto; specifically, the front end portion is provided as a soft segment 101, the rear end portion is provided as a flexible segment 102, and the hardness of the flexible segment 102 is greater than that of the soft segment 101;

a connection tube 2 connected to an end of the flexible section 102 of the guide wire 1, and the flexible section 101 of the guide wire 1 penetrates into the connection tube 2 to extend to the other end of the connection tube 2;

the connector 3 is internally provided with a penetrating channel 303, a part of the connecting pipe 2 is inserted into one end of the channel 303, and the other end of the channel 303 is used for being connected with an external syringe.

The guide wire device for the ectopic adjustment of the PICC catheter of this embodiment has a flexible section 101 at the front end of the guide wire 1 and a flexible section 102 at the rear end, that is, the rear end of the flexible section 101 is connected with the front end of the flexible section 102 to form an integral structure of the guide wire 1. The rear end of the flexible section 102 is connected with the front end of the connecting pipe 2, which plays a role in connecting the connecting pipe 2, and at the same time, the flexible section 102 plays a role in supporting the flexible section 101 connected with the front end. The part of the connecting pipe 2 is spliced in the channel 303, namely, the rear end of the connecting pipe 2 is connected with the front end of the connector 3, the connector 3 is a plastic piece and has certain elasticity, and after the connecting pipe 2 is inserted into the connector 3, the connecting pipe 2 and the connector 3 are firmly connected. The front and rear directions refer to the left and right directions in fig. 1 to 2, respectively.

The guide wire device for the ectopic adjustment of the PICC catheter of the embodiment is used for connecting one end of the connecting pipe 2 with the end part of the PICC catheter when in use on the premise that the patient agrees to adjust the catheter in a sterile window period of 4 hours, so that the PICC catheter is sleeved outside the guide wire 1. That is, the PICC catheter may be sleeved outside the guide wire 1, the front end of the connection tube 2 may be connected to the rear end of the PICC catheter, the guide wire 1 may be prevented from sliding into the PICC catheter, and the injection port of the syringe may be connected to the rear end of the connection head 3; physiological saline is injected into the PICC catheter through the connector 3 and the connecting pipe 2; blood can be withdrawn through the syringe, and whether the PICC catheter is unobstructed can be judged; the guide wire device in the implementation is independently packaged, so that the use cost of the ectopic adjustment of the catheter is reduced.

In this embodiment, the connector 3 is provided with external threads on the outside of the end connected to the external syringe.

In the specific application, the injection port is located the front end of syringe, and the front end of syringe is equipped with the internal thread, and in the front end of syringe can insert the rear end of connector 3, both pass through threaded connection, make the connection more firm.

In this embodiment, the middle part of the outer wall of the connector 3 is provided with a step 301.

In a specific application, the step 301 may be a cylinder or a cylinder with multiple faces, and when the connector 3 is connected with the end of the syringe or the PICC catheter, the step 301 may be pinched by a hand, so as to facilitate connection with other parts.

In this embodiment, the connector 3 is provided with anti-slip patterns on the outer wall at the end connected to the connecting pipe 2.

In specific application, the end part of some PICC catheters is sleeved with a decompression sleeve, and the decompression sleeve can be a circular tube. That is, after the guide wire is inserted into the PICC catheter, the pressure reducing sleeve at the rear end of the PICC catheter is connected with the front end of the connector 3, the front end of the connector 3 is inserted into the pressure reducing sleeve, and the anti-skid threads at the outer part of the front end of the connector can provide the firmness of connection between the two, so that the guide wire 1 can be prevented from sliding into the PICC catheter. The guide wire device of this embodiment can realize that a guide wire 1 can be connected with the PICC pipe of two kinds of different interfaces, adapts to clinical demand better.

In this embodiment, the end of the connector 3 connected to the connecting tube 2 is provided with a groove 302; the groove 302 is a circular groove, and is internally provided with internal threads.

In the specific application, the tip of PICC pipe has the external screw thread, and when connecting pipe 2 and PICC pipe connection, the tip of PICC pipe passes through threaded connection with recess 302 to guarantee connecting pipe 2 and PICC pipe connection's fastness.

In this embodiment, the end of the flexible segment 102 of the guidewire 1 passes through the connection tube 2 and the portion thereof protruding out of the connection tube 2 is connected to the outer wall of the connection tube 2. The connecting pipe 2 is a metal pipe, the end part of the flexible section 102 is a metal piece, and the metal piece is welded with the outer wall of the connecting pipe 2.

In a particular application, the length of the flexible segment 101 may be 3cm, the length of the flexible segment 102 may be 27cm, i.e. the total length of the guidewire 1 may be 30cm. The outside of the guidewire 1 may be covered with a separate sterile package.

The guide wire 1 may be provided as a nickel-titanium alloy guide wire identical to the guide wire in the original PICC catheter.

Referring to fig. 2, in some embodiments, the end of the flexible segment 102 extends into the connection tube 2, i.e., the rear end of the flexible segment 102 at the rear end of the guide wire 1 extends into the connection tube 2 from the front end of the connection tube 2, so that the flexible segment 102 is connected with the connection tube 2.

The end of the flexible section 102 passes through the connecting tube 2 and extends out to the outer wall of the connecting tube 2 and is connected with the connecting tube, so that the connection structure firmness of the guide wire 1 and the connecting tube 2 is enhanced.

Because the connecting pipe 2 is a metal pipe, the end part of the flexible section 102 is a metal piece, and the outer wall of the metal piece is welded with the outer wall of the connecting pipe 2, namely, the guide wire 1 is a metal wire, and the rear end of the flexible section 102 is welded with the outer wall of the connecting pipe 2, so that the guide wire 1 is conveniently connected with the connecting pipe 2.

The guide wire 1 may be cylindrical, and the connection tube 2 may be a circular tube.

Referring to fig. 2, the connector 3 is made of plastic, and the channel 303 inside the connector 3 is firmly connected with the connecting tube 2 with the guide wire 1, and the plastic has a certain elasticity, so that the connecting tube 2 can be heated by a hot-pressing connection mode and then inserted into the connector 3, and after the connecting tube 2 is cooled, the connecting tube 2 is firmly and reliably connected. The passage 303 of the connector 3 is divided into two sections, the front section is connected with the connecting pipe 2, the rear end is connected with the injection port of the injector, and the inner diameter of the rear end is larger than that of the front section.

In this embodiment, the guide wire 1 is provided with scale marks.

In a specific application, the guide wire is marked from the front end to the rear end by one black etching point at 5cm, two black etching points at 10cm, three black etching points at 15cm, four black etching points at 20cm, 5 black etching points at 25cm and the like. The length of the guidewire 1 into the PICC catheter can be observed by means of the graduation marks.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A guidewire device for ectopic adjustment of a PICC catheter, comprising:

a connecting tube connected to an end of the flexible segment;

2. The guide wire device for ectopic adjustment of a PICC catheter as claimed in claim 1, wherein the connector is provided with external screw threads at one end connected to an external syringe.

3. The guide wire device for the ectopic adjustment of the PICC catheter as claimed in claim 1, wherein a step is provided at the middle part of the outer wall of the coupling head.

4. The guide wire device for ectopic adjustment of a PICC catheter as claimed in claim 1, wherein the connector is provided with anti-slip patterns at an outer wall thereof at an end where the connector is connected with the connection tube.

5. The guide wire device for the ectopic adjustment of the PICC catheter as claimed in claim 1, wherein the connector is provided with a groove at an end surface thereof at one end connected to the connection tube.

6. The guide wire device for ectopic adjustment of a PICC catheter as claimed in claim 5, wherein the groove is a circular groove, and an internal thread is provided inside the groove.

7. The guide wire device for PICC catheter ex-situ adjustment according to claim 1, wherein the end of the flexible segment passes through the connection tube, and a portion thereof protruding from the connection tube is connected to an outer wall of the connection tube.

8. The guide wire device for PICC catheter ex-situ adjustment according to claim 1, wherein the connection tube is a metal tube, and the end of the flexible segment is a metal member welded to the outer wall of the connection tube.

9. The guide wire device for the ectopic adjustment of a PICC catheter as claimed in claim 1, wherein graduation marks are provided on the guide wire.