CN212729928U

CN212729928U - Percutaneous gastrostomy tube balloon memory puncture needle set

Info

Publication number: CN212729928U
Application number: CN202020656380.5U
Authority: CN
Inventors: 陈陵; 王宗华
Original assignee: 958th Army Hospital Of Pla; Army Medical University
Current assignee: 958th Army Hospital Of Pla; Army Medical University
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2021-03-19
Anticipated expiration: 2030-04-26

Abstract

The utility model discloses a percutaneous gastrostomy tube sacculus memory pjncture needle external member, including circular shape cylinder, still including penetrating in the cylinder to the pjncture needle that memory material made, the external diameter of cylinder is less than the internal diameter of fistulization pipe, and the both ends of pjncture needle are puncture end and handheld end respectively, and the puncture end is the crook shape when free state. Use the utility model discloses, the pjncture needle is made by memory material, and in the pjncture needle retractable cylinder, when making things convenient for the pjncture needle to puncture the sacculus, has ensured the security that the pjncture needle used for the extraction of fistulization pipe is more simple and convenient, swift, has improved the security that the fistulization pipe extracted simultaneously.

Description

Percutaneous gastrostomy tube balloon memory puncture needle set

Technical Field

The utility model relates to a puncture needle external member, in particular to a percutaneous gastrostomy tube balloon memory puncture needle external member.

Background

For patients who lose swallowing function but have normal gastrointestinal digestive absorption function, a percutaneous gastrostomy tube is a common method for enteral nutrition support, and a catheter can be used for 1 year at most.

As shown in fig. 3, after the sterilization water is injected into the balloon (31) at the front end of the fistulization tube (3) through the balloon one-way valve by the injector, the balloon (31) is inflated, so that the fistulization tube (3) can be fixed without falling off. Therefore, when the fistula (3) is replaced, the fistula (3) can be smoothly pulled out and replaced by withdrawing the sterilization water in the balloon (31) through the one-way valve of the balloon (31).

However, after 1 year of use, under the action of gastric acid, digestive enzyme, bile and various foods, the balloon is aged, the elasticity is weakened, the balloon one-way valve fails, and the sterilization water in the balloon cannot be completely pumped out, so that the old fistulization tube cannot be smoothly pulled out.

If the fistulation tube is forcibly pulled out, the fistulation opening may burst and cause heavy bleeding, and if the fistulation tube is not pulled out, the fistulation tube cannot be replaced, and the old fistulation tube is difficult to ensure safe use.

At present, the problem is very troublesome to solve clinically, gastroscopy operation can be performed only under general anesthesia in an operating room, a balloon is cut by small scissors under direct vision of a gastroscope, an old fistulation tube is pulled out, and a new fistulation tube is replaced. However, the method is high in cost and time-consuming (when the operation is smooth, complete replacement takes about 1 half hour), the patient is painful and has certain risks, and more importantly, part of the patients can not be subjected to gastroscopy due to cardiovascular and cerebrovascular diseases, so that the fistulation tube cannot be replaced.

Disclosure of Invention

The utility model aims to provide a: aiming at the problem of difficulty in replacing the fistulization tube in the prior art, the percutaneous gastrostomy tube balloon memory puncture needle kit convenient for pulling out the fistulization tube is provided.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

the utility model provides a percutaneous gastrostomy tube sacculus memory pjncture needle external member, includes circular cylinder, still includes and penetrates in the cylinder to the pjncture needle that memory material made, the external diameter of cylinder is less than the internal diameter of fistulization pipe, and the both ends of pjncture needle are puncture end and handheld end respectively, and the puncture end is the crook when free state.

Adopt above-mentioned technical scheme's utility model, pjncture needle is received in the cylinder before the use, during the use inserts the cylinder and makes the fistula, when the position to setting for, releases the pjncture needle from the cylinder, and the pjncture needle resumes crook shape, lifts the pjncture needle upwards in order to puncture the sacculus, and the sterilization water in the sacculus is given out, and the sacculus shrink both can extract and make the fistula.

Further, the holding end is triangular. The puncture needle can be conveniently held by hand for operation.

Further, the distance between the two points which are farthest transversely on the hand-held end is larger than the inner diameter of the needle cylinder. The puncture needle is prevented from falling into the stomach to damage the patient when the puncture needle is used.

Furthermore, after the needle cylinder is inserted into the fistulization tube, the end of the needle cylinder exposed outside is provided with a support lug. The support lug is convenient for taking the needle cylinder during operation.

Furthermore, the number of the support lugs is two, and the two support lugs extend outwards from the needle cylinder and are symmetrically distributed. The needle cylinder is convenient to take.

Further, the distance between the farthest two end points on the two lugs is larger than the inner diameter of the fistulation tube. The needle cylinder is prevented from falling into the stomach of a patient from the fistulization tube during operation, and the operation safety is improved.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the puncture needle made of the memory material can be retracted into the needle cylinder, so that the puncture needle can puncture the balloon conveniently, the use safety of the puncture needle is guaranteed, and the fistulization tube can be pulled out more conveniently and rapidly.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of the puncture needle of the balloon memory puncture needle set of the percutaneous gastrostomy tube of the utility model when the puncture needle is worn out.

Figure 2 shows a cross-sectional view of the needle of figure 1 with the needle retracted into the barrel.

Figure 3 shows a schematic view of the configuration of the stoma tube in use.

Wherein the figures include the following reference numerals:

1, a needle cylinder; 11, supporting ears; 2, puncture needles; 21 puncturing end; 22 a handheld end; 3, fistulization; 31 a balloon; 32 a water injection port; 4 abdominal wall; 5 stomach wall.

Detailed Description

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 and 2, a percutaneous gastrostomy balloon memory puncture needle set respectively corresponding to two states of puncture needle use and retraction comprises a circular needle cylinder 1 and a puncture needle 2 penetrating into the needle cylinder 1 and made of memory material, wherein the outer diameter of the needle cylinder 1 is smaller than the inner diameter of a fistulization tube 3, two ends of the puncture needle 2 are a puncture end 21 and a handheld end 22 respectively, and the puncture end 21 is in a hook shape in a free state.

Preferably, the handle end 22 is triangular in shape.

Preferably, the distance between the two points on the distal-most lateral end 22 is greater than the inside diameter of the barrel 1.

Preferably, after the needle cylinder 1 is inserted into the fistulation tube 3, the needle cylinder 1 is provided with a lug 11 at the end exposed to the outside.

Preferably, the two lugs 11 extend from the needle cylinder 1 to the outside and are symmetrically distributed.

Preferably, the distance between the two most distal ends of the two lugs 11 is greater than the inner diameter of the ostomy tube 3.

Referring to fig. 3, which is a schematic view of the structure of the fistula in use, when the stoma 32 is opened, sterilized water is injected into the balloon 31 from the stoma 32, and the fistula 3 in this embodiment is inserted into the stomach after passing through the abdominal wall 4 and the gastric wall 5; when the fistulization tube 3 needs to be pulled out, the balloon 31 is punctured by the puncture needle 2, so that the sterilized water in the balloon 31 flows out, the balloon 31 is deflated, and the fistulization tube 3 can be pulled out from the outside.

Specifically, the cylinder 1 may be made of stainless steel.

The scope of the present invention is defined not by the above-described embodiments but by the appended claims and equivalents thereof.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a percutaneous gastrostomy tube sacculus memory pjncture needle external member, includes circular shape cylinder (1), its characterized in that still includes penetrates in cylinder (1) to pjncture needle (2) of making with the memory material, the external diameter of cylinder (1) is less than the internal diameter of making fistula (3), the both ends of pjncture needle (2) are puncture end (21) and handheld end (22) respectively, puncture end (21) are the crotch shape when free state.

2. The percutaneous gastrostomy tube balloon memory puncture needle set according to claim 1, characterized in that the handheld end (22) is triangular.

3. The percutaneous gastrostomy tube balloon memory puncture needle kit according to claim 1, characterized in that the distance between the two points at the farthest transverse on the handheld end (22) is larger than the inner diameter of the needle cylinder (1).

4. The percutaneous gastrostomy tube balloon memory puncture needle kit according to claim 1, characterized in that after the needle cylinder (1) is inserted into the fistulation tube (3), the end of the needle cylinder (1) exposed outside is provided with a support lug (11).

5. The percutaneous gastrostomy tube balloon memory puncture needle set according to claim 4, characterized in that the number of the support lugs (11) is two, and the two support lugs extend outwards from the needle cylinder (1) and are symmetrically distributed.

6. A percutaneous gastrostomy balloon memory puncture needle set according to claim 4, characterized in that the distance between the farthest end points on the two support lugs (11) is larger than the inner diameter of the fistulation tube (3).