CN213075840U

CN213075840U - Medical puncture cannula device capable of preventing slipping

Info

Publication number: CN213075840U
Application number: CN202020946019.6U
Authority: CN
Inventors: 黄从军; 周世勇; 阮明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-04-30
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a medical puncture cannula device for preventing slippage, belonging to the technical field of an abdominal puncture operation device; a medical puncture cannula device for preventing slippage comprises an inner tube used in cooperation with a puncture needle; an operation end is arranged at the upper top of the inner pipe; the outer side wall of the inner pipe is fixedly provided with a connecting pipe along the axis direction; a strip-shaped hole is formed in the pipe wall of the connecting pipe, and an expansion assembly is arranged at the position of the strip-shaped hole; the outer pipe wall of the connecting pipe is movably provided with a limiting pipe; the pipe wall of spacing pipe is located to open with the position that expansion block is relative has the arc slotted hole, and still installs the pressure head on spacing pipe, the utility model discloses it is single to solve the fixed mode of puncture sleeve pipe structure that uses at present effectively, receives the influence easily and leads to the activity of puncture sleeve pipe at the in-process of performing the operation, and then influences the problem of the success of performing the operation.

Description

Medical puncture cannula device capable of preventing slipping

Technical Field

The utility model relates to an abdominocentesis operation technical field, concretely relates to prevent medical puncture sleeve pipe device of slippage.

Background

At present, in order to enable surgical instruments such as an endoscope and the like to enter a human body in a minimally invasive abdominal operation, a sleeve with a puncture needle needs to be used for puncturing the abdominal wall, then the puncture needle is pulled out, the sleeve is left on the abdominal wall, and the puncture sleeve is used as a channel for introducing the surgical instruments into the abdominal cavity for performing the operation; in the process, in order to stably insert the cannula into the abdominal wall of the patient, most of the conventional means adopted is to provide a threaded section at the joint of the outer side wall of the cannula and the abdominal wall to improve the friction force between the outer side wall of the cannula and the abdominal wall, but in the actual use process, the cannula is usually penetrated into the abdominal cavity too deeply or is separated from the abdominal cavity under the influence of the outside, so that the problem of great inconvenience is brought to the operation work of medical staff.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a medical puncture cannula device for preventing slippage to solve the fixed mode singleness of puncture cannula structure that uses at present, receive the influence easily and lead to puncture cannula's activity at the in-process of carrying out the operation, and then influence the problem of operation success.

In order to solve the above problem, the utility model provides a following technical scheme:

a medical puncture cannula device for preventing slippage comprises an inner tube used in cooperation with a puncture needle; an operation end is arranged at the upper top of the inner pipe; the outer side wall of the inner pipe is fixedly provided with a connecting pipe along the axis direction; a strip-shaped hole is formed in the pipe wall of the connecting pipe, and an expansion assembly is arranged at the position of the strip-shaped hole; the outer pipe wall of the connecting pipe is movably provided with a limiting pipe; the pipe wall of the limiting pipe is provided with an arc-shaped slotted hole at the position opposite to the expansion component, and the limiting pipe is also provided with a pressure head.

Preferably, the expansion assembly comprises an inflatable expansion block arranged at the strip-shaped hole, and an air inlet pipe communicated with the inner wall of the connecting pipe is arranged on one side, close to the operation end, of the connecting pipe; the air inlet pipe is detachably provided with a sealing cover; and a sealing structure is arranged between the connecting pipe and the inner pipe.

Furthermore, an overflow valve is further installed on one side, close to the operation end, of the connecting pipe, and the overflow pressure of the overflow valve is lower than the full-load pressure of the inflation expansion block.

Furthermore, the number of the strip-shaped holes and the corresponding inflatable expansion blocks on the connecting pipe is not less than 2, and the strip-shaped holes and the corresponding inflatable expansion blocks are uniformly arranged on the pipe wall of the connecting pipe by taking the axis of the connecting pipe as a symmetry axis; the length direction of the strip-shaped hole is the same as the axial direction of the connecting pipe.

Preferably, the outer side walls of the connecting pipe and the limiting pipe are provided with guide marks.

Preferably, the outer side wall of the connecting pipe and the inner wall of the limiting pipe are respectively provided with an inner thread structure and an outer thread structure which are matched with each other, and the limiting pipe comprises two-thirds specifications of which the length is the same as that of the connecting pipe and the length is the same as that of the connecting pipe.

Preferably, the pressure head is of an annular clamping piece structure, and an inner hole in the middle of the pressure head is detachably clamped and installed on the limiting pipe.

Furthermore, a detachable medical cotton pad is arranged at the lower bottom of the pressure head.

The utility model discloses beneficial effect:

the utility model discloses medical puncture sleeve pipe to current has improved, it is through installing connecting pipe and the spacing pipe that has expansion assembly additional in the sleeve pipe outside, and utilize the arc slotted hole on the spacing pipe to carry out the draw-in groove of fixing between spacing pipe and connecting pipe as expansion assembly after the inflation, it carries out the centre gripping fixedly to the skin inside and outside of patient along stretching out of arc slotted hole after setting up pressure head cooperation expansion assembly inflation simultaneously on spacing pipe, thereby replaced the external screw thread section structure that uses frictional force to fix on the conventional sleeve pipe, the operation reliability is greatly improved, the medical personnel of being convenient for operate.

Drawings

Fig. 1 is a schematic structural view of the present invention in an embodiment;

description of reference numerals: 1. the medical cotton pad comprises an inner tube, 2, an operation end, 3, a connecting tube, 4, an expansion assembly, 4A, an inflation expansion block, 4B, an air inlet tube, 4C, an overflow valve, 5, a limiting tube, 5A, an arc-shaped slotted hole, 6, a limiting groove, 7 and a medical cotton pad.

Detailed Description

The invention will be further described with reference to the following drawings and specific embodiments:

example (b):

referring to fig. 1, the present embodiment provides a medical puncture cannula device for preventing slipping, which includes an inner tube 1 for use with a puncture needle; an operation end 2 is arranged at the upper top of the inner pipe 1; a connecting pipe 3 is fixed on the outer side wall of the inner pipe 1 along the axis direction; a strip-shaped hole is formed in the pipe wall of the connecting pipe 3, and an expansion assembly 4 is arranged at the position of the strip-shaped hole; the outer pipe wall of the connecting pipe 3 is movably provided with a limiting pipe 5; an arc-shaped slotted hole 5A is formed in the position, opposite to the expansion assembly 4, of the pipe wall of the limiting pipe 5, and a pressure head 6 is further mounted on the limiting pipe 5.

The expansion assembly 4 comprises an inflatable expansion block 4A arranged at the strip-shaped hole, and an air inlet pipe 4B communicated with the inner wall of the connecting pipe 3 is arranged on one side, close to the operation end head 2, of the connecting pipe 3; the air inlet pipe 4B is detachably provided with a sealing cover; and a sealing structure is arranged between the connecting pipe 3 and the inner pipe 1. An overflow valve 4C is further mounted on one side, close to the operation end head 2, of the connecting pipe 3, and the overflow pressure of the overflow valve 4C is lower than the full-load pressure of the inflation expansion block 4A. In this embodiment, the inflation and expansion block 4A is an elastic block sheet structure made of latex, the inflation component 4 using the inflation structure can cooperate with the inflation component of a conventional sleeve to perform inflation and deflation, and meanwhile, the additional installation of the overflow valve 4C can prevent the inflation and expansion block 4A from being broken in the body of the patient to cause medical accidents.

The number of the strip-shaped holes on the connecting pipe 3 and the number of the corresponding inflatable expansion blocks 4A are not less than 2, and the strip-shaped holes and the corresponding inflatable expansion blocks are uniformly arranged on the pipe wall of the connecting pipe 3 by taking the axis of the connecting pipe 3 as a symmetry axis; the length direction of the strip-shaped holes is the same as the axial direction of the connecting pipe 3. The number of the strip-shaped holes and the corresponding inflatable expansion blocks 4A in the embodiment is three, and the symmetrical inflatable expansion blocks 4A are beneficial to enabling the inflatable expansion blocks to expand and extend out of the air bag structure of the arc-shaped slotted hole to be more uniform below the skin of a patient, so that a more reliable supporting effect is provided.

All be provided with the direction sign on the lateral wall of connecting pipe 3 and spacing pipe 5. In this embodiment, the direction sign is the linear line that is on a parallel with connecting pipe 3 and spacing pipe 5 axis, linear line is total three, and every sign on the connecting pipe 3 is the same to the distance in two adjacent bar holes, and the width size of the arc slotted hole 5A on the spacing pipe 5 is not less than the width in bar hole, and every sign on the spacing pipe 5 is the same to the distance in two adjacent arc slotted holes 5A.

The outer side wall of the connecting pipe 3 and the inner wall of the limiting pipe 5 are respectively provided with an inner thread structure and an outer thread structure which are matched with each other, and the limiting pipe 5 comprises two-thirds specifications of which the length is the same as that of the connecting pipe 3 and the length is the connecting pipe 3. The matched thread structure can not only enable the connecting pipe 3 and the limiting pipe 5 to displace, but also play a certain limiting effect, and prevent the sliding caused by the external influence before the incomplete alignment between the arc-shaped slotted hole 5A and the inflation expansion block 4A.

The pressure head 6 is an annular clamping piece structure, and a plurality of clamping grooves matched with the clamping piece structure are also arranged on the limiting pipe 5; the pressure head 6 is detachably arranged on the limiting pipe 5 through a clamping groove. The lower bottom of the pressure head 6 is also provided with a detachable medical cotton pad 7. In this embodiment, the clamping groove on the limiting tube 5 is arranged along the axial direction, and the position of the pressing head 6 on the limiting tube 5 can be adjusted according to the requirement by the pressing head 6 of the clamping piece structure.

When using this embodiment the utility model discloses the device when carrying out puncture sheathed tube setting, at first need adjust the position of pressure head 6 on the spacing pipe 5 according to patient's epidermis to the tissue thickness of health inner chamber, it is relative with tissue thickness to make the distance between pressure head 6 and the arc slotted hole 5A, then put into connecting pipe 3 along the operation wound, adjust connecting pipe 3 through the screw-thread fit of connecting pipe 3 with spacing pipe 5 afterwards and stretch into the internal degree of depth of patient, and guarantee that pressure head 6 hugs closely patient's skin setting, let in the air in 4B thereafter, aerify back inflation by inflation piece 4A and press head 6 to press from both sides tightly from top to bottom at the skin layer respectively, realize the supplementary fixed effect to whole thimble assembly.

Claims

1. A medical puncture cannula device for preventing slipping comprises an inner tube (1) used with a puncture needle; an operation end (2) is arranged at the upper top of the inner pipe (1); the method is characterized in that: a connecting pipe (3) is fixed on the outer side wall of the inner pipe (1) along the axial direction; a strip-shaped hole is formed in the pipe wall of the connecting pipe (3), and an expansion assembly (4) is arranged at the position of the strip-shaped hole; a limiting pipe (5) is movably arranged on the outer pipe wall of the connecting pipe (3); an arc-shaped slotted hole (5A) is formed in the position, opposite to the expansion component (4), of the pipe wall of the limiting pipe (5), and a pressure head (6) is further mounted on the limiting pipe (5).

2. The medical puncture cannula device for preventing slipping as claimed in claim 1, wherein: the expansion assembly (4) comprises an inflatable expansion block (4A) arranged at the strip-shaped hole, and an air inlet pipe (4B) communicated with the inner wall of the connecting pipe (3) is arranged on one side, close to the operation end head (2), of the connecting pipe (3); the air inlet pipe (4B) is detachably provided with a sealing cover; a sealing structure is arranged between the connecting pipe (3) and the inner pipe (1).

3. The medical puncture cannula device for preventing slipping as claimed in claim 2, wherein: an overflow valve (4C) is further mounted on one side, close to the operation end head (2), of the connecting pipe (3), and the overflow pressure of the overflow valve (4C) is lower than the full-load pressure of the inflation expansion block (4A).

4. The anti-slippage medical puncturing cannula device as claimed in claim 1 or 2, wherein: the number of the strip-shaped holes on the connecting pipe (3) and the number of the corresponding inflatable expansion blocks (4A) are not less than 2, and the strip-shaped holes and the corresponding inflatable expansion blocks are uniformly arranged on the pipe wall of the connecting pipe (3) by taking the axis of the connecting pipe (3) as a symmetry axis; the length direction of the strip-shaped holes is the same as the axial direction of the connecting pipe (3).

5. The medical puncture cannula device for preventing slipping as claimed in claim 1, wherein: and guide marks are arranged on the outer side walls of the connecting pipe (3) and the limiting pipe (5).

6. The medical puncture cannula device for preventing slipping as claimed in claim 1, wherein: the outer side wall of the connecting pipe (3) and the inner wall of the limiting pipe (5) are respectively provided with an inner thread structure and an outer thread structure which are matched with each other, and the limiting pipe (5) comprises two-thirds specifications of which the length is the same as that of the connecting pipe (3) and the length is the connecting pipe (3).

7. The medical puncture cannula device for preventing slipping as claimed in claim 1, wherein: the pressure head (6) is of an annular clamping piece structure, and a plurality of clamping grooves matched with the clamping piece structure are also arranged on the limiting pipe (5); the pressure head (6) is detachably arranged on the limiting pipe (5) through a clamping groove.

8. The anti-slippage medical puncturing cannula device as claimed in claim 7, wherein: the lower bottom of the pressure head (6) is also provided with a detachable medical cotton pad (7).