CN215230687U - Spiral air suction type negative pressure drainage device for surgery - Google Patents

Abstract

The utility model discloses a spiral air suction type negative pressure drainage device for surgery, which comprises a negative pressure generating mechanism, wherein the negative pressure generating mechanism is respectively connected with a liquid inlet pipe component and a liquid discharge pipe component, and the liquid discharge pipe component is detachably connected with a drainage bag; the negative pressure generating mechanism comprises a negative pressure tank with scale marks, a piston, a screw rod and a hand wheel, wherein an internal thread hole is formed in the center of the top of the negative pressure tank body, the screw rod penetrates through the internal thread hole in the top of the tank body and is connected with the piston arranged in the negative pressure tank body, the other end of the screw rod is fixedly connected with the hand wheel, and a sealing ring tightly attached to the inner wall of the negative pressure tank body is arranged in the circumferential direction of the piston, so that a closed negative pressure chamber is formed. The device of the utility model is simple in structure, reasonable in design drives the piston through the screw rod and produces the negative pressure and can directly judge the size of a jar internal negative pressure value through the scale on the negative pressure jar body to satisfy current service environment's needs.

Description

Spiral air suction type negative pressure drainage device for surgery

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to spiral bleeder negative pressure drainage device for surgery.

Background

The surgical negative pressure drainage device is matched with a drainage tube and widely used for drainage and evacuation of postoperative wound surfaces, subcutaneous blood and body cavity oozing blood or effusion. Generally, the negative pressure source comprises a drainage container, a one-way valve and an air extractor, and is used as the driving force for drainage, and the negative pressure source generally comprises a negative pressure applied manually, a negative pressure applied by a ward negative pressure source or a preset negative pressure of the drainage container, and the like. According to different purposes, the drainage negative pressure device can be divided into a low negative pressure device and a high negative pressure device, the low negative pressure device generally uses a silica gel balloon and a compressible corrugated pipe for air exhaust, and negative pressure is generated by manual extrusion deformation; the high negative pressure device is usually a hard container with preset negative pressure, the hard container is pre-vacuumized before delivery, and a valve is opened when the high negative pressure device is used.

In the prior art, a drainage container of the low-negative-pressure drainage device is usually made of an elastic or semi-rigid material, negative pressure is formed in a manual extrusion mode and the like before use, the negative pressure value in the container is gradually reduced in the drainage process until the negative pressure is lost, and the negative pressure needs to be extruded again to reset. The negative pressure drainage device has the defect that the negative pressure value formed after the drainage container made of elastic or semi-rigid materials is extruded is lower, and the requirement of high negative pressure drainage cannot be met. The drainage container of the high negative pressure drainage device is usually made of rigid materials, is sealed after the negative pressure is preset by a vacuum pump during production, and is communicated with a drainage tube after a switch is opened during use. The negative pressure can not be reset on the use site, and the negative pressure value in the container is reduced to a certain degree in the drainage process, so that the container is lost and needs to be replaced.

In view of the above, the present inventors have devised a spiral suction type negative pressure drainage device for surgery to solve the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem that exists among the prior art, the utility model provides a screw bleeder negative pressure drainage device for surgery, this negative pressure drainage device pass through the screw rod and drive the piston and produce the negative pressure, can reset the negative pressure at the use scene portably, and can produce higher negative pressure value as required, reach the purpose of taking into account the advantage of above-mentioned two kinds of apparatus.

The to-be-solved technical problem of the utility model is realized through following technical scheme: a spiral air suction type negative pressure drainage device for surgery comprises a negative pressure generating mechanism, wherein the negative pressure generating mechanism is respectively connected with a liquid inlet pipe assembly and a liquid outlet pipe assembly, and the liquid outlet pipe assembly is detachably connected with a drainage bag;

the negative pressure generating mechanism comprises a negative pressure tank, a piston, a screw rod and a hand wheel, wherein an internal thread hole is formed in the center of the top of the negative pressure tank body, the screw rod penetrates through the internal thread hole in the center of the top of the tank body and is connected with the piston arranged in the negative pressure tank body, the other end of the screw rod is fixedly connected with the hand wheel, and a sealing ring tightly attached to the inner wall of the negative pressure tank body is arranged in the circumferential direction of the piston;

the top of the negative pressure tank is provided with an air vent, the bottom of the negative pressure tank is provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are respectively correspondingly connected with a liquid inlet pipe assembly and a liquid discharge pipe assembly, and the liquid inlet and the liquid outlet are respectively provided with a one-way valve;

the liquid inlet pipe assembly comprises a liquid inlet pipe, a flow regulator arranged on the liquid inlet pipe and a drainage pipe connector arranged at the inlet end of the liquid inlet pipe, and the outlet end of the liquid inlet pipe is communicated with the liquid inlet of the negative pressure tank;

the drain pipe assembly comprises a drain pipe, the inlet end of the drain pipe is communicated with the liquid outlet of the negative pressure tank, the outlet end of the drain pipe is provided with a drainage bag connector, and the drainage bag connector is connected with a drainage bag.

Further, the helical angle of threaded connection between the screw and the internal threaded hole is less than 5 degrees.

Further, the negative pressure tank body is made of transparent polycarbonate, and the outer wall of the tank body is provided with scale marks for representing a negative pressure value.

Further, the drain pipe assembly further comprises a pipe clamp, and the pipe clamp is installed on the pipe wall of the drain pipe.

Further, the piston is made of polycarbonate or ABS materials.

Further, the negative pressure drainage device also comprises a bracket, wherein the bracket comprises an upright post and a bracket arm connected with the upright post;

and a circular groove for placing the negative pressure tank is formed in the support arm.

Furthermore, an anti-rotation convex rib is inserted between the negative pressure tank and the circular groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model relates to a spiral bleeder negative pressure drainage device for surgery, this spiral bleeder negative pressure drainage device, drive the piston through the screw rod and produce the negative pressure at the negative pressure jar, be in the position of negative pressure jar outer wall scale according to the piston bottom surface, judge jar interior negative pressure value, stop rotatoryly after reaching the negative pressure value of needs, because the screw rod is less than 5 degrees with the internal thread hole threaded connection's at the top center of the negative pressure jar body helical angle, therefore the screw thread possesses self-locking function, can keep the piston to stop in current required negative pressure position department. When drainage negative pressure with different values is needed, the position of the piston in the tank body is adjusted only by the screw rod, and the device is suitable for the requirements of various occasions on different drainage negative pressure. Compared with the prior art, the defect that the pressure is reduced along with the increase of the drainage quantity when the preset high negative pressure drainage bottle is used is avoided, the negative pressure value in the tank can be repeatedly increased, the defect that the drainage bottle is limited in volume and needs to be replaced after being filled with the drainage bottle is avoided, and only the drainage bag which is large in capacity and low in price needs to be replaced.

2. The utility model relates to a spiral bleeder negative pressure drainage device for surgery, this spiral bleeder negative pressure drainage device can read the negative pressure value in real time through negative pressure jar body scale, need not external negative pressure table.

Drawings

FIG. 1 is a schematic view of the whole structure of the spiral air-extracting negative pressure drainage device of the present invention;

fig. 2 is a schematic structural view of the negative pressure generating mechanism of the present invention.

In the figure: 1. a negative pressure generating mechanism; 2. a liquid inlet pipe assembly; 3. a drain assembly; 4. a drainage bag; 5. a support; 11. a negative pressure tank; 12. a piston; 13. a screw; 14. a hand wheel; 15. a seal ring; 21. a liquid inlet pipe; 22. a flow regulator; 23. a drainage tube interface; 31. a liquid discharge pipe; 32. a drainage bag interface; 33. a pipe clamp; 51. a column; 52. a support arm; 111. an internally threaded bore; 112. a vent hole; 113. a liquid inlet; 114. a liquid outlet; 115. a one-way valve; 116. scale lines; 117. anti-rotation convex ribs; 118. a liquid level; 121. a piston bottom surface; 521. a circular groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It is to be understood that such description is merely illustrative and not restrictive of the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example (b): referring to fig. 1-2, a spiral air suction type negative pressure drainage device for surgery comprises a negative pressure generation mechanism 1, wherein the negative pressure generation mechanism 1 is respectively connected with a liquid inlet pipe assembly 2 and a liquid discharge pipe assembly 3, and the liquid discharge pipe assembly 3 is detachably connected with a drainage bag 4.

Specifically, the negative pressure generating mechanism 1 comprises a negative pressure tank 11 made of transparent polycarbonate, a piston 12, a screw 13 and a hand wheel 14, the outer wall of the tank body of the negative pressure tank 11 is provided with a scale mark 116 for representing a negative pressure value, the top center of the tank body of the negative pressure tank 11 is provided with an upwardly convex bottle opening, the bottle opening is internally provided with an internal thread hole 111, the screw 13 passes through the internal thread hole 111 at the top center of the tank body and is connected with the piston 12 arranged in the tank body of the negative pressure tank 11, the other end of the screw 13 is fixedly connected with the hand wheel 14, a sealing ring 15 tightly attached to the inner wall of the tank body of the negative pressure tank 11 is arranged in the circumferential direction of the piston 12, that is, a closed negative pressure chamber is formed in the can body, preferably, the piston 12 is made of polycarbonate or ABS material, the screw 13 is made of nylon or ABS material, the sealing ring 15 is made of rubber material, through the arrangement, the screw rod can drive the piston to generate negative pressure with different numerical values in the negative pressure tank.

In order to guarantee that the negative pressure tank 11 maintains a certain specific negative pressure value after adjustment, the utility model discloses set the helical angle with screw 13 and the 111 threaded connection of internal thread hole in being less than 5 degrees within ranges to realize the auto-lock. Therefore, the hand wheel 14 is rotated anticlockwise to further drive the piston 12 to ascend, the negative pressure value in the tank is judged according to the position of the bottom surface of the piston 12 on the scale of the outer wall of the negative pressure tank, the hand wheel 14 stops rotating after the required negative pressure value is reached, and the piston can be stopped at the position by the self-locking thread.

Wherein, the top of negative pressure jar 11 has been seted up air vent 112, and the bottom is equipped with inlet 113 and liquid outlet 114, and inlet 113 is connected with feed liquor pipe assembly 2, and liquid outlet 114 is connected with fluid-discharge tube assembly 3 to all install check valve 115 on inlet 113 and liquid outlet 114.

Specifically, the liquid inlet pipe assembly 2 includes a liquid inlet pipe 21, a flow regulator 22 disposed on the liquid inlet pipe 21, and a drainage pipe connector 23 installed at an inlet end of the liquid inlet pipe 21, and an outlet end of the liquid inlet pipe 21 is communicated with a liquid inlet 113 of the negative pressure tank 11.

The fluid-discharge tube assembly 3 includes fluid-discharge tube 31, and the entry end of fluid-discharge tube 31 communicates with the liquid outlet 114 of negative pressure jar 11, and the exit end of fluid-discharge tube 31 is provided with drainage bag interface 32, and drainage bag interface 32 can be dismantled with drainage bag 4 and be connected, and modes such as accessible threaded connection or grafting are printed on drainage bag 4 and are had the scale mark, and the medical personnel of being convenient for observe. Preferably, the drainage tube assembly 3 further comprises a pipe clamp 33, wherein the pipe clamp 33 is installed on the wall of the drainage tube 31, and the pipe clamp 33 can be used for conducting the drainage tube 31 or temporarily conducting the drainage tube 31, so as to facilitate the replacement of the drainage bag 4 connected to the end of the drainage tube 31.

The utility model discloses negative pressure drainage device still includes support 5, support 5 includes stand 51 and the support arm 52 of being connected with stand 51, and wherein stand 51 should satisfy can insert in the other infusion support jack of sick bed, is convenient for fixed, offers the circular recess 521 that is used for placing negative pressure jar 11 on the support arm 52, inserts between negative pressure jar 11 and the circular recess 521 and is equipped with and prevents changeing protruding muscle 117, makes negative pressure jar 11 lay stably on support arm 52.

The utility model discloses spiral bleeder negative pressure drainage device's application method as follows:

1) inserting the stand column of the bracket into a transfusion bracket jack beside a sickbed, and inserting the anti-rotation convex rib of the negative pressure tank into a groove on the side surface of the round hole of the bracket arm, so that the negative pressure tank is stably arranged on the bracket arm;

2) the drainage bag interface is firmly connected with the drainage bag;

3) the outlet of the drainage tube which is placed on the body of the patient is firmly spliced with the drainage tube interface of the device;

4) adjusting the flow regulator to be completely closed, and closing the pipeline clamp;

5) rotating the hand wheel anticlockwise, and lifting the piston to form negative pressure in the negative pressure tank;

6) according to the position of the bottom surface of the piston on the scale of the outer wall of the negative pressure tank, the negative pressure value in the tank is judged, the rotation is stopped after the required negative pressure value is reached, and the piston can be stopped at the position by the self-locking thread;

7) slowly opening the flow regulator, observing the outflow condition of the drainage liquid, and controlling the drainage speed;

8) as the amount of the drainage liquid increases, the pressure in the negative pressure tank rises, the hand wheel can be continuously rotated to lift the piston as required, the vacuum degree is increased, and the difference between the scales of the liquid level 118 in the tank and the bottom surface 121 of the piston is the negative pressure value (as shown in fig. 2);

9) when the space in the negative pressure tank body is filled with drainage liquid or no space exists for continuously lifting the piston, a drain pipe pipeline clamp is opened, the hand wheel is rotated clockwise, the piston descends, the drainage liquid is drained into the drainage bag, and after the negative pressure tank is emptied, the pipeline clamp is closed, so that the steps can be repeated for continuous drainage;

10) the drainage bag can be replaced when the pipe clamp is closed after being filled with the drainage bag.

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

Claims (7)

1. The utility model provides a spiral bleeder negative pressure drainage device for surgery which characterized in that: the negative pressure drainage device comprises a negative pressure generating mechanism (1), wherein the negative pressure generating mechanism (1) is respectively connected with a liquid inlet pipe assembly (2) and a liquid drainage pipe assembly (3), and the liquid drainage pipe assembly (3) is detachably connected with a drainage bag (4);

the negative pressure generating mechanism (1) comprises a negative pressure tank (11), a piston (12), a screw rod (13) and a hand wheel (14), wherein an internal thread hole (111) is formed in the center of the top of the tank body of the negative pressure tank (11), the screw rod (13) penetrates through the internal thread hole (111) in the center of the top of the tank body and is connected with the piston (12) arranged in the tank body of the negative pressure tank (11), the other end of the screw rod (13) is fixedly connected with the hand wheel (14), and a sealing ring (15) tightly attached to the inner wall of the tank body of the negative pressure tank (11) is arranged in the circumferential direction of the piston (12);

the top of the negative pressure tank (11) is provided with a vent hole (112), the bottom of the negative pressure tank is provided with a liquid inlet (113) and a liquid outlet (114), the liquid inlet (113) and the liquid outlet (114) are respectively and correspondingly connected with the liquid inlet pipe assembly (2) and the liquid outlet pipe assembly (3), and the liquid inlet (113) and the liquid outlet (114) are respectively provided with a one-way valve (115);

the liquid inlet pipe assembly (2) comprises a liquid inlet pipe (21), a flow regulator (22) arranged on the liquid inlet pipe (21) and a drainage pipe connector (23) arranged at the inlet end of the liquid inlet pipe (21), and the outlet end of the liquid inlet pipe (21) is communicated with a liquid inlet (113) of the negative pressure tank (11);

the liquid discharge pipe assembly (3) comprises a liquid discharge pipe (31), the inlet end of the liquid discharge pipe (31) is communicated with a liquid outlet (114) of the negative pressure tank (11), the outlet end of the liquid discharge pipe (31) is provided with a drainage bag interface (32), and the drainage bag interface (32) is connected with a drainage bag (4).

2. The surgical spiral suction type negative pressure drainage device according to claim 1, wherein: the helical angle of the threaded connection between the screw (13) and the internal threaded hole (111) is less than 5 degrees.

3. The surgical spiral suction type negative pressure drainage device according to claim 1, wherein: the negative pressure tank (11) is made of transparent polycarbonate, and the outer wall of the tank body is provided with scale marks (116) for representing the negative pressure value.

4. The surgical spiral suction type negative pressure drainage device according to claim 1, wherein: the drainage pipe assembly (3) further comprises a pipe clamp (33), and the pipe clamp (33) is installed on the pipe wall of the drainage pipe (31).

5. The surgical spiral suction type negative pressure drainage device according to claim 1, wherein: the piston (12) is made of polycarbonate or ABS material.

6. A surgical spiral suction negative pressure drainage device according to any one of claims 1 to 5, wherein: the negative pressure drainage device further comprises a bracket (5), wherein the bracket (5) comprises a stand column (51) and a bracket arm (52) connected with the stand column (51);

the bracket arm (52) is provided with a circular groove (521) for placing the negative pressure tank (11).

7. The surgical spiral suction type negative pressure drainage device according to claim 6, wherein: an anti-rotation convex rib (117) is inserted between the negative pressure tank (11) and the circular groove (521).

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