CN213465240U

CN213465240U - Novel subcutaneous tunnel establisher

Info

Publication number: CN213465240U
Application number: CN202021105372.8U
Authority: CN
Inventors: 谢广伦; 程志卓; 李仕鹏; 耿立军; 王强; 林恒; 高虹姣; 李星耀; 刘广来; 王文燕; 张磊; 宋媛媛; 贺迪
Original assignee: Henan Tuoren Medical Device Co ltd; Henan Cancer Hospital
Current assignee: Henan Tuoren Medical Device Co ltd; Henan Cancer Hospital
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-06-18
Anticipated expiration: 2030-06-16

Abstract

The patent of the utility model discloses a novel subcutaneous tunnel establishes ware, including needle tubing, sleeve pipe, needle file and nook closing member seat, the nook closing member with nook closing member seat fixed connection, the sleeve pipe with needle file fixed connection, the sleeve pipe alternates there are needle tubing and both swing joint, just the nook closing member passes the cavity of needle tubing, just the nook closing member seat with the needle file joint. The needle tube and the sleeve can be separated to realize disassembly, the tunnel is established through the needle tube so that the process of placing the catheter into the skin is convenient and quick to operate, the damage of the subcutaneous tube to a patient in clinic is reduced, and the time of subcutaneous tube placement is greatly shortened; additionally, the utility model discloses simple structure, processing technology is simple, can realize big batch fast production.

Description

Novel subcutaneous tunnel establisher

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a novel subcutaneous tunnel establishes ware.

Background

In the clinical cancer pain treatment process, the medicine is continuously delivered to the focus part in a mode of long-term catheter placement outside the dura mater, thereby achieving the purpose of long-term inflammation diminishing and pain easing. During the long-term indwelling period of the catheter, in order to prevent the epidural space catheter part from being infected, a subcutaneous tunnel is often required to be established, and the infusion end of the catheter embedded under the skin is guided to the far end through the established subcutaneous tunnel, so that the infusion end of the catheter is far away from the original puncture point, and the catheter placement is completed.

Chinese patent 2010200019537 (publication No. CN 201691964U) discloses a subcutaneous tunnel builder, which comprises a needle body with a groove and a needle core, wherein the needle body is of a groove structure, and after the puncture is completed, half of the needle body is exposed, so that subcutaneous tissues are recessed in the groove of the needle body, which causes the difficulty of catheter implantation.

Chinese patent 2019203351830 (publication No. CN 209996438U) discloses an epidural catheter subcutaneous tunnel puncture needle, which comprises a needle rod and a needle handle, wherein the rear end of the needle rod is positioned in the needle handle and is in sliding fit with the needle handle, so that the needle rod is detachably connected with the needle handle. When a subcutaneous tunnel is established, the needle handle is taken off from the rear end of the needle rod, then the outer end of the catheter is guided into the catheter hole from the rear end of the needle rod and is guided out from the front end of the needle rod, finally the needle rod is withdrawn from the catheter along the catheter, and the epidural catheter is left in the subcutaneous tunnel. However, due to the conical structure of the front end of the needle rod and the position of the guide tube hole of the needle rod, the guide tube is not easy to be led out from the guide tube hole of the needle rod, and the operation is complex.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of prior art, the utility model provides a novel subcutaneous tunnel establisher, needle tubing and sleeve pipe can break away from, realize dismantling, establish the tunnel through the needle tubing, and subcutaneous process operation is convenient, swift are put into to the pipe, have reduced the damage of clinical subcutaneous pipe to patient, and great shortening the time of subcutaneous pipe art.

The utility model adopts the technical scheme as follows:

the utility model provides a novel subcutaneous tunnel establishs ware, includes needle tubing, sleeve pipe, needle file and nook closing member seat, the nook closing member with nook closing member seat fixed connection, the sleeve pipe with needle file fixed connection, the sleeve pipe alternates there is needle tubing and both swing joint, just the nook closing member passes the cavity of needle tubing, just the nook closing member seat with the needle file joint.

Furthermore, chamfers are arranged at the front end and the rear end of the needle tube and the sleeve, and the numerical range of the chamfers is 30-60 degrees.

Further, the tip part of the needle core is a conical tip.

Further, the sleeve is 40mm long.

Further, the diameter of the needle tube is smaller than the diameter of the sleeve.

Furthermore, the needle tube is printed with scale marks, and the distance between every two adjacent scale marks is 10mm from the head end to the tail end of the needle tube.

Furthermore, the needle tube, the sleeve and the needle core are all made of stainless steel, and the needle seat and the needle core seat are all made of high polymer materials.

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

1. the utility model discloses in, the needle tubing can break away from with the sleeve pipe to the realization can be dismantled, and subcutaneous process convenient operation, swift are put into to the pipe, have reduced the clinical damage of subcutaneous catheterization to patient, and great shortening the time of subcutaneous catheterization.

2. The needle tube and the front end and the rear end of the sleeve are provided with chamfers, so that the subcutaneous tunnel builder has smaller resistance and is convenient to assemble when in puncture.

3. The utility model discloses in, the needle tubing is printed on the scale mark, is convenient for calculate the length of establishing subcutaneous tunnel, has improved the success rate of doctor's operation.

4. The utility model discloses simple structure, processing technology is simple, can realize big batch rapid production.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a partial enlarged view of the present invention.

In the figure, 1-needle core 2-needle tube 3-canula 4-needle seat 5-needle core seat.

Detailed Description

The present invention will now be described in further detail and with reference to the accompanying drawings.

As shown in fig. 1 and 2, a novel subcutaneous tunnel builder comprises a needle tube 2, a cannula 3, a needle base 4, a needle core 1 and a needle base 5, wherein the needle core 1 is fixedly connected with the needle base 5, the cannula 3 is fixedly connected with the needle base 4, the needle tube 2 is inserted into the cannula 3 and movably connected, it is noted that the needle tube 2 is in sliding fit with the cannula 3, the needle core 1 passes through a cavity of the needle tube 2, that is, the needle core passes through the cavity of the needle tube and extends out, so as to conveniently puncture the epidermis of a patient through an extending end (i.e., the front end) of the needle core 1, the needle base 5 is connected with the needle base 4 in a clamping manner, the disassembly and assembly of the needle base 5 and the needle base 4 are convenient, and the structure of the clamping connection between the needle base 5 and the needle base 4 is within a protection range as long as. The needle tube 2 and the sleeve 3 can be separated, so that the disassembly is realized, the process of placing the catheter under the skin is greatly facilitated, and the operation is quicker.

For better technical effect, the tip part of the stylet 1 is a conical tip, so as to facilitate percutaneous puncture.

As shown in figure 3, the front end and the rear end of the needle tube 2 and the sleeve 3 are provided with 45-degree chamfers, so that the subcutaneous tunnel builder has smaller resistance and is convenient to assemble when in puncture.

In the present embodiment, specifically, the cannula 3 is 40mm long, and the needle tube 2 is 210mm long.

The diameter of the needle tube 2 is smaller than that of the sleeve 3, so that the needle tube 2 can smoothly penetrate into the sleeve 3. In the above embodiment, more specifically, the outer diameter of the needle tube is 1.64mm, the inner diameter thereof is 1.28mm, the outer diameter of the cannula is 1.82mm, and the inner diameter thereof is 1.68 mm.

In a specific embodiment, furthermore, the outer surface of the needle tube 2 is printed with scale marks, the distance between every two adjacent scale marks from the head end to the tail end of the needle tube 2 is 10mm, and the needle tube 2 is printed with the scale marks so as to calculate the length of the built subcutaneous tunnel, thereby improving the success rate of operation of a doctor.

In one embodiment, the needle tube 2, the cannula 3 and the needle core 1 are made of stainless steel, and the needle holder 4 and the needle core holder 5 are made of polymer material.

The specific working process is as follows: after the epidural puncture art succeeds, extract the epidural puncture needle, use the utility model discloses follow the epidural puncture point and walk 10 centimetres of play skin to the cephalic side through the hypoderm, then extract needle core seat 5, needle core 1, needle file 4 and sleeve pipe 3 in proper order, form subcutaneous tunnel through needle tubing 2, the epidural catheter penetrates from 2 ends of needle tubing, wears out at 2 head ends of needle tubing, then takes out needle tubing 2 from the pipe infusion end for former puncture point seals, accomplishes and puts the pipe.

The foregoing is a more detailed description of the invention, taken in conjunction with the specific preferred embodiments, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of conceiving, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A novel subcutaneous tunnel builder is characterized in that: including needle tubing, sleeve pipe, needle file and nook closing member seat, the nook closing member with nook closing member seat fixed connection, the sleeve pipe with needle file fixed connection, the sleeve pipe alternates there is needle tubing and both swing joint, just the nook closing member passes the cavity of needle tubing, just the nook closing member seat with the needle file joint.

2. The novel subcutaneous tunnel builder as claimed in claim 1, wherein: chamfers are arranged at the front end and the rear end of the needle tube and the sleeve, and the numerical range of the chamfers is 30-60 degrees.

3. The novel subcutaneous tunnel builder as claimed in claim 1, wherein: the tip part of the needle core is a conical tip.

4. The novel subcutaneous tunnel builder as claimed in claim 1, wherein: the length of the sleeve is 40 mm.

5. The novel subcutaneous tunnel builder as claimed in claim 1, wherein: the diameter of the needle tube is smaller than that of the sleeve.

6. The novel subcutaneous tunnel builder as claimed in claim 1, wherein: the needle tubing is printed with scale marks, and the distance between every two adjacent scale marks is 10mm from the head end to the tail end of the needle tubing.

7. The novel subcutaneous tunnel builder as claimed in claim 1, wherein: the needle tube, the sleeve and the needle core are all made of stainless steel, and the needle seat and the needle core seat are all made of high polymer materials.