CN215129703U

CN215129703U - Improved arterial puncture catheter set

Info

Publication number: CN215129703U
Application number: CN202120224010.9U
Authority: CN
Inventors: 韩亚坤; 胡菽君; 余德慧; 黄煦晨; 郑强虎
Original assignee: Third Peoples Hospital of Shenzhen
Current assignee: Third Peoples Hospital of Shenzhen
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-12-14
Anticipated expiration: 2031-01-26

Abstract

The utility model provides an improved arterial puncture catheter set, which comprises an arterial puncture catheter, a puncture needle inserted at the front end of the arterial puncture catheter, a remaining soft sleeve sleeved at the front end of the arterial puncture catheter and sleeved on the puncture needle, a guide wire movably arranged at the rear section of the arterial puncture catheter and aligned with a needle hole of the puncture needle, and an adjusting knob for adjusting the position of the guide wire, wherein a T-shaped opening is formed on the pipe wall of the rear section of the arterial puncture catheter, and the T-shaped opening comprises a section of arc-shaped circumferential opening which is formed along the circumferential direction of the pipe wall and is positioned near the front end and an axial opening which is formed along the axial direction of the pipe wall and is communicated with the circumferential opening; the connecting rod of the adjusting knob, which is connected with the inner column and the handle, can move in the T-shaped opening, and the connecting rod is in a thin rod shape. The utility model discloses can solve this needle soft sleeve and can't put into arterial vascular key problem along the seal wire, improve arterial puncture's efficiency and success rate, be favorable to reducing the tissue wound simultaneously.

Description

Improved arterial puncture catheter set

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to an improve arteriopuncture pipe group is related to.

Background

Clinically, for critically ill operation patients or intensive care patients, blood pressure needs to be continuously monitored, invasive blood pressure detection is generally adopted, namely, an arterial puncture cannula is placed into an artery, and then an arterial pressure measuring device is connected to measure the change of arterial blood pressure in real time. In the prior art, an invasive arterial puncture catheter set is commonly used, which has certain advantages compared with a common arterial puncture indwelling needle, when the arterial needle punctures an arterial blood vessel, a guide wire can be pushed into the blood vessel firstly, and then a soft cannula sleeved on the puncture needle is placed into the arterial blood vessel along the guide wire, so that the success rate of placing the soft cannula into the artery is improved. However, the end of the soft outer sleeve is shorter than the needle tip of the puncture needle by about 3mm, and the arterial blood vessel wall tissue at the needle tip is not expanded in place, so that the soft outer sleeve cannot be successfully placed into the artery along the guide wire, and the puncture efficiency and success rate are affected.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide an improve arteriopuncture pipe group, this new technology can solve this needle soft sleeve and can't put into the vascular key problem of artery along the seal wire, improves arteriopuncture's efficiency and success rate, is favorable to reducing the tissue wound simultaneously.

In order to solve the technical problem, the utility model provides an improve arteriopuncture pipe group, including the arteriopuncture pipe, insert the pjncture needle of arranging in the arteriopuncture pipe front end, cup joint in the arteriopuncture pipe front end and the indwelling flexible sleeve pipe of cover locating on the pjncture needle, the activity is arranged in the arteriopuncture pipe back end and the seal wire that aligns with the pinhole of pjncture needle, the adjust knob that is used for adjusting the seal wire position, set up T type opening on the back end pipe wall of arteriopuncture pipe, T type opening includes the axial opening that is located the one section curved circumference opening that sets up along the pipe wall circumference that leans on the front end and sets up along the pipe wall axial that communicates with the circumference opening; the connecting rod of the adjusting knob, which is connected with the inner column and the handle, can move in the T-shaped opening, and the connecting rod is in a thin rod shape.

Preferably, the arc length of the circumferential opening is not more than 1/2 of the posterior section pipe diameter of the artery puncture catheter.

Preferably, the circumferential opening is provided at a position corresponding to the link when the adjustment knob is pushed to the distal end of the rear section of the arterial puncture catheter.

Preferably, the T-shaped opening is formed by cutting a T shape on the rear section tube wall of the arterial puncture catheter, and the side wall of the opening can be naturally spliced.

Preferably, the connecting rod has a cylindrical or square-columnar shape.

The utility model relates to an improve arteriopuncture pipe group compares with current design, and its advantage lies in: this improve arteriopuncture pipe group makes its seal wire put into arterial blood vessel completely after, and seal wire rear end tail adjust knob can rotate left right, and rotation angle can reach 180 to drive the seal wire and rotate, in order to reach the effect of the arterial blood vessel wall tissue of expansion pinhole department, so that soft sleeve pipe can put into smoothly high-efficiently, improves the efficiency and the success rate of arteriopuncture, is favorable to reducing the tissue wound simultaneously.

Drawings

Fig. 1 is a side view of an improved arteriopuncture catheter set of the present invention.

Fig. 2 is a schematic side view of the arteriopuncture catheter of the present invention.

Fig. 3 is a front schematic view of the arteriopuncture catheter of the present invention.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3 according to the present invention.

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples.

The utility model relates to an improved artery puncture catheter set, as shown in figure 1, comprising an artery puncture catheter 1, a puncture needle 2, a remaining soft sleeve 3, a guide wire 4 and an adjusting knob 5. In this embodiment, the needle end of the puncture needle is defined as the front end, and the opposite end is defined as the tail end.

The artery puncture catheter 1 is in a hollow tubular shape, a puncture needle 2 is fixedly inserted into the front section of the artery puncture catheter, the rear end of the puncture needle 2 is communicated with the rear section of a tube cavity of the artery puncture catheter 1, and the front end of the puncture needle 2 is inserted into an indwelling soft sleeve 3.

The indwelling soft cannula 3 comprises a sleeve joint part 31 sleeved on the insertion part at the front end of the arterial puncture catheter 1, a suture wing 32 connected to the sleeve joint part 31 and a soft cannula 33 connected to the suture wing 32. The puncture needle 2 is inserted into the soft sleeve 33 in a matching way, and the needle point of the puncture needle 2 is exposed out of the soft sleeve 33 by about 3 mm. The soft sleeve 33 is covered with a needle head protective cover.

As shown in fig. 2-4, the rear section of the arterial puncture catheter 1 is a hollow round tube, a T-shaped opening 11 is formed in the tube wall of the arterial puncture catheter, the T-shaped opening 11 is formed by cutting a T-shape on the tube wall, and the side walls of the opening can be naturally spliced to ensure the sealing property of the tube wall of the arterial puncture catheter 1 as much as possible. The T-shaped opening 11 comprises a circumferential opening 111 arranged at the front end along the circumferential direction of the conduit and an axial opening 112 communicated with the circumferential opening 111 and arranged along the axial direction of the conduit. In a preferred embodiment, the circumferential opening 111 is opened at a position corresponding to the link when the adjusting knob 5 is pushed to the front end of the rear section of the arteriopuncture catheter 1. The length of the circumferential opening 111 is not more than 1/2 of the rear section pipe diameter of the arterial puncture catheter 1.

The guide wire 4 is movably arranged at the rear section of the arterial puncture catheter 1, is aligned with the needle hole of the puncture needle 2, and is connected with the adjusting knob 5 at the rear end. The adjusting knob 5 comprises an inner column 51 used for fixing the guide wire 4, a handle 52 used for realizing axial push-pull and circumferential rotation of the guide wire 4 and a connecting rod vertically connected between the inner column 51 and the handle, the inner column 51 is movably positioned in the rear-section lumen of the arterial puncture catheter 1, the handle 52 is sleeved outside the arterial puncture catheter 1, and the connecting rod can move in the T-shaped opening.

The connecting rod is thin rod-shaped, can be cylindrical or square column-shaped, and has an outer diameter of 0.8-1.2 mm, so that the connecting rod can smoothly slide in the T-shaped opening 11 and can not expand the T-shaped opening 11, and the sealing property of the tube wall of the arterial puncture catheter 1 can be maintained as much as possible.

In a preferred embodiment, the body of the artery puncture catheter is made of fluorinated ethylene propylene containing barium sulfate or polyether polyurethane; the puncture needle is made of stainless steel material; the guide wire is made of 304 stainless steel material; the sewing wings are made of acrylonitrile-styrene-butadiene.

The utility model discloses when improving arteriopuncture pipe group and using, at first the syringe needle that uses pjncture needle 2 punctures the vascular pipe wall of artery, the handle 52 that promotes adjust knob 5 makes its axial opening 112 along the arteriopuncture pipe 1 back end to push forward to the front end tip, make seal wire 4 pass the syringe needle of pjncture needle 2, put into in the arterial blood vessel, adjust handle 52 makes the connecting rod remove the regulation along the circumference opening is controlled about the opening, realize the rotation of seal wire to reach the effect of the vascular wall tissue of artery of expansion pinhole department.

Claims

1. The utility model provides an improve arteriopuncture pipe group, includes arteriopuncture pipe (1), inserts puncture needle (2) of arranging arteriopuncture pipe (1) front end in, cup joints in arteriopuncture pipe (1) front end and the cover keep somewhere soft sleeve pipe (3) on puncture needle (2), the activity arrange arteriopuncture pipe (1) back end in and with seal wire (4) that the pinhole of puncture needle (2) aligns, be used for adjusting adjust knob (5) of seal wire (4) position, its characterized in that: a T-shaped opening (11) is formed in the rear section of the tube wall of the arterial puncture catheter (1), and the T-shaped opening (11) comprises a section of arc-shaped circumferential opening (111) which is formed in the circumferential direction of the tube wall and is positioned close to the front end of the arterial puncture catheter, and an axial opening (112) which is formed in the axial direction of the tube wall and is communicated with the circumferential opening (111); and a connecting rod of the adjusting knob (5), which is connected with the inner column (51) and the handle (52), can move in the T-shaped opening (11), and is in a thin rod shape.

2. The improved arteriopuncture catheter set of claim 1 wherein: the arc length of the circumferential opening (111) is not more than 1/2 of the rear section pipe diameter of the arterial puncture catheter (1).

3. The improved arteriopuncture catheter set of claim 1 wherein: the circumferential opening (111) is arranged at a position corresponding to the connecting rod when the adjusting knob (5) is pushed to the front end part of the rear section of the arterial puncture catheter (1).

4. An improved arteriopuncture catheter set according to any one of claims 1-3, wherein: the T-shaped opening (11) is formed by cutting a T shape on the rear section pipe wall of the arterial puncture catheter (1), and the side wall of the opening can be naturally spliced.

5. An improved arteriopuncture catheter set of claim 4 in which: the connecting rod is cylindrical or square column-shaped.