CN110680980A

CN110680980A - Medical flushing aspirator

Info

Publication number: CN110680980A
Application number: CN201911108934.6A
Authority: CN
Inventors: 刘鸿箫; 顾承雄; 朱俊明; 于洋; 方颖; 李红武
Original assignee: Germany Opi Surgical Instruments Ltd; Rotmain (beijing) Medical Equipment Development Co Ltd
Current assignee: Germany Opi Surgical Instruments Ltd; Rotmain (beijing) Medical Equipment Development Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-01-14

Abstract

The invention discloses a medical irrigation aspirator, which comprises a tubular main body piece, a first joint arranged at one end of the main body piece and a connecting pipe, wherein: the main body part is internally provided with a buffer storage cavity communicated with the connecting pipe and the first joint, the main body part is provided with a pressure regulating hole communicated with the buffer storage cavity, and a pressure regulating cavity is formed between the pressure regulating hole and the buffer storage cavity; wash the aspirator still include with pressure regulating hole and pressure regulating chamber cooperate the pressure regulating subassembly in order to adjust the slow storage intracavity pressure jointly, wherein, the pressure regulating subassembly is including setting up the uide bushing in the main part piece, set up in the sealed pad that is close to slow storage chamber one end of uide bushing, set up in the uide bushing and with sealed pad fixed connection's guide bar, cover and establish the guide of keeping away from sealed pad one end of guide bar and encircle the setting and be in the spring of the periphery of the guide bar between guide piece and the sealed pad along the length direction of main part piece. By adopting the irrigation aspirator, the working pressure can be flexibly and conveniently adjusted.

Description

Medical flushing aspirator

Technical Field

The invention relates to a medical irrigation aspirator, in particular to a novel medical irrigation aspirator with adjustable pressure, and belongs to the technical field of medical instruments.

Background

In the surgical operation process, the operation field is unclear due to the existence of blood, pus, exudate and the like, so that the irrigation aspirator is required to continuously suck and irrigate the operation part to ensure the smooth operation. In the existing irrigation aspirator structure, the irrigator and the aspirator pipeline are usually arranged separately, the guide pipe is long and many, the operation is complicated, and particularly, the irrigation and the aspiration operation need to be switched, so that a large amount of time is consumed for replacing the guide pipe, the operation time is greatly prolonged, and the operation danger is increased. Moreover, the traditional irrigation aspirator controls the working pressure thereof through a pump source, however, the pipeline communication is needed from the pump working pressure to the working head, the pressure loss is large, the accurate control is difficult to achieve, the working pressure adjusting difficulty is also large, and the efficiency and the quality of the operation are reduced.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a medical irrigation aspirator which has reasonable design, simple structure and convenient adjustment of working pressure,

in order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a medical suction unit that washes, includes tubulose main part, sets up in the first joint of main part one end and with the connecting pipe that the main part is linked together, wherein: the main body part is internally provided with a buffer storage cavity communicated with the connecting pipe and the first joint, the main body part is provided with a pressure regulating hole communicated with the buffer storage cavity, and a pressure regulating cavity is formed between the pressure regulating hole and the buffer storage cavity; wash the aspirator still include with pressure regulating hole and pressure regulating chamber cooperate in order to adjust jointly the pressure regulating subassembly of slow storage intracavity pressure, wherein, the pressure regulating subassembly is including setting up the uide bushing in main part spare, setting up in the sealed pad that is close to slow storage chamber one end of uide bushing, along the length direction setting of main part spare in the uide bushing and with sealed pad fixed connection's guide bar, cover establish the guide of keeping away from sealed pad one end of guide bar and encircle the setting and be in the spring of the periphery of the guide bar between guide piece and the sealed pad.

Further: the outer side wall of the guide sleeve is provided with at least one convex edge arranged along the length direction of the guide sleeve, and the inner side wall of the main body part is provided with a groove matched with the convex edge, so that the guide sleeve can slide in the main body part along the groove.

Further: the convex edge and the groove are respectively provided with three.

Further: the material of sealed pad is medical silica gel, just the one end that is close to the buffer storage chamber of sealed pad has the toper anchor ring with the internal diameter looks adaptation of main part.

Further: the guide is a pressure sensor.

Further: the pressure regulating assembly further comprises a regulating block for driving the guide piece to slide along the guide rod.

Further: the adjusting block is slidably arranged in a guide groove arranged along the length direction of the main body piece, and a plurality of gears used for fixing the adjusting block are further arranged on the main body piece.

Further: the irrigation aspirator comprises a detachable end cap arranged at one end of the main body piece, which is far away from the first joint.

The irrigation aspirator has the beneficial effects that the irrigation aspirator is reasonable in design and convenient to operate, and through the design of the buffer cavity, the acting force from the connecting pipe is buffered and regulated by the buffer cavity, so that the working head has proper working pressure; and the working pressure of the working head can be flexibly and effectively adjusted through the common matching of the pressure adjusting component and the buffer cavity. In addition, through setting up the guide for pressure sensor, be favorable to operating personnel to know the pressure value change in the operation in real time, and then master the change of the working pressure of working head in the operation process, improved convenience and the reliability of washing the aspirator and using.

Drawings

FIG. 1 is an exploded view of the medical irrigation aspirator of the present invention;

FIG. 2 is a schematic view showing the structural assembly of the medical irrigation aspirator of the invention;

FIG. 3 shows a schematic of the construction of the valve of the present invention;

FIG. 4 shows an enlarged detail at A in FIG. 3;

FIG. 5 shows a further enlarged detail at B in FIG. 4;

FIG. 6 is a schematic view of the positions of the shift positions and guide slots in the body member of the present invention; and

fig. 7 shows a schematic view of the connection structure of the sliding adjusting sleeve with the gear and the guide groove.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

As shown in figures 1 and 2, the medical irrigation aspirator comprises a tubular main body part 2 and a connecting pipe 1 communicated with the main body part 2, wherein one end of the main body part 2 is further provided with a first connector 201 for connecting with a working head (not shown). The main body part 2 is internally provided with a buffer storage cavity 203 communicated with the connecting pipe 1 and the first joint 201, the main body part 2 is also provided with a pressure regulating hole 202 communicated with the buffer storage cavity 203, and a pressure regulating cavity 206 is formed between the pressure regulating hole 202 and the buffer storage cavity 203. During a flushing operation, the connection tube 1 can be connected with an external pump and a flushing liquid through the second joint 101, so as to deliver the flushing liquid with a certain pressure to the buffer chamber 202 and the working head through the buffer chamber 202; during the suction operation, the working head can suck blood, pus, and the like at the surgical site by the negative pressure generated by the pump connected to the second joint 101. In order to improve the connectivity with various pipes, containers, and the like, luer connectors having good versatility may be used for the first connector 201 and the second connector 101. In addition, the punch-suction unit further comprises a pressure regulating assembly which is matched with the pressure regulating hole 202 and the pressure regulating cavity 206 to regulate the pressure of the working head. Because the buffer storage cavity 203 is communicated with the outside through the pressure regulating cavity 206 via the pressure regulating hole 202, the size of the gap between the pressure regulating cavity 206 and the outside can be controlled by the pressure regulating assembly, so that the pressure in the buffer storage cavity 203 can be flexibly changed under the condition that the pressure provided by the connecting pipe 1 is constant, and the working pressure of the working head communicated with the buffer storage cavity 203 can be flexibly regulated.

Specifically, as shown in fig. 3 to 5, in the present invention, the pressure regulating assembly may include a guide sleeve 301, a sealing gasket 302 disposed at an end of the guide sleeve 301 close to the buffer chamber 203, a guide rod 304 disposed in the guide sleeve 301 along the length direction of the main body 2 and fixedly connected to the sealing gasket 302, a guide member 306 disposed at an end of the guide rod 304 far from the sealing gasket 302, and a spring 303 surrounding an outer circumference of the guide rod 304 disposed between the guide member 306 and the sealing gasket 302, such that the sealing gasket 302 and the guide sleeve 301 seal the buffer chamber 203 under the action of the spring 303. During the operation of the irrigation aspirator, the guide member 306 is moved along the guide rod 304 to the sealing gasket 302, thereby compressing the spring 303, and further forcing the sealing gasket 302 and the guide sleeve 301 to continuously squeeze the space of the pressure regulating cavity 206, so as to reduce the communication gap between the pressure regulating hole 202 and the buffer cavity 203, and further realize the effect of changing the pressure of the buffer cavity 203.

Further, in the present invention, at least one rib 3011 is disposed on the outer side wall of the guide sleeve 301 along the length direction of the guide sleeve 301, and a groove (not shown) adapted to the rib 3011 is disposed on the inner side wall of the main body 2, so that the guide sleeve 301 is slidably disposed in the main body 2 by the cooperation of the rib 3011 and the groove on the main body 2. Further, in the present invention, the three protruding edges 3011 are uniformly arranged on the outer side wall of the guide sleeve 301, so that the guiding stability of the guide sleeve in the groove of the main body 2 is ensured by the principle of three-point positioning. In addition, the sealing gasket 302 can be made of medical silica gel, and one end of the sealing gasket, which is close to the buffer cavity 203, is designed into a conical ring surface matched with the inner diameter of the main body part 2, so as to ensure the sealing performance.

In particular, in order to better track the strength of the spring 303 compressed in real time during the operation, the guiding element 306 can be a pressure sensor, so that during the operation of the irrigation aspirator, the pressure value during the operation can be measured by the pressure sensor and transmitted to the corresponding control device through the corresponding data line 3061, so that the operator can know the change of the pressure value during the operation in real time, and further know the change of the working pressure of the working head during the operation, thereby improving the convenience and reliability of the irrigation aspirator.

In addition, as shown in fig. 6 and 7, the pressure regulating assembly of the present invention further includes an adjusting block 305 for driving the guide member 306 to slide along the guide rod 304, and the adjusting block 305 is slidably disposed in the guide groove 204 disposed along the length direction of the main body member 2, and the main body member 2 is further provided with a plurality of shift positions 205 for fixing the adjusting block 305 and communicating with the guide groove 204, so that when the adjusting block 305 is moved by operation to drive the guide member 306 to move along the guide rod 304, the adjusting block 305 can be fixed to the corresponding shift position 205 after sliding to a proper position along the guide groove 204, thereby achieving a simple and fast adjustment control effect. In addition, the irrigation aspirator of the present invention includes a detachable end cap 4 disposed at an end of the main body member 2 away from the first joint 201 to improve the sealing and maintainability of the irrigation aspirator.

The irrigation aspirator of the invention comprises the following irrigation processes: the flushing liquid enters into the buffer cavity 203 through the connecting pipe 1 under the effect of the pump, and then drives the guide 306 to move towards the direction of the sealing gasket 302 through moving the adjusting block 305, so that the spring 303 is compressed, the pressure in the buffer cavity 203 is increased, and then the water pressure flushed out through the first joint 201 is increased, otherwise, the water pressure flushed out through the first joint 201 can be reduced, and therefore the adjustable control of different pressures in the flushing process is realized. In the suction operation of the irrigation aspirator, the working head can be caused to suck blood, pus, and the like from the surgical site by the negative pressure generated by the pump connected to the second joint 101. In addition, in the present invention, the guiding element 306 may be a pressure sensor, so that the pressure value change during the operation can be known in real time, so that the medical staff can adjust the operation pressure at any time according to the pressure value, and the accuracy of the operation is improved.

The present invention has been described in detail with reference to the preferred embodiments. However, variations and additions to the embodiments will become apparent to those of ordinary skill in the art upon a reading of the foregoing description. It is the intention of the applicants that all such variations and additions fall within the scope of the claims. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Any modification and improvement of this product, and the substitution and use of the same or similar substances within the scope or range of patents, shall fall within the scope of protection of this invention.

Claims

1. The utility model provides a medical suction unit that washes, includes tubulose main part spare, set up in the first joint of main part spare one end and with the connecting pipe that main part spare is linked together which characterized in that: the main body part is internally provided with a buffer storage cavity communicated with the connecting pipe and the first joint, the main body part is provided with a pressure regulating hole communicated with the buffer storage cavity, and a pressure regulating cavity is formed between the pressure regulating hole and the buffer storage cavity; wash the aspirator still include with pressure regulating hole and pressure regulating chamber cooperate in order to adjust jointly the pressure regulating subassembly of slow storage intracavity pressure, wherein, the pressure regulating subassembly is including setting up the uide bushing in main part spare, setting up in the sealed pad that is close to slow storage chamber one end of uide bushing, along the length direction setting of main part spare in the uide bushing and with sealed pad fixed connection's guide bar, cover establish the guide of keeping away from sealed pad one end of guide bar and encircle the setting and be in the spring of the periphery of the guide bar between guide piece and the sealed pad.

2. The medical irrigation aspirator of claim 1, wherein: the outer side wall of the guide sleeve is provided with at least one convex edge arranged along the length direction of the guide sleeve, and the inner side wall of the main body part is provided with a groove matched with the convex edge, so that the guide sleeve can slide in the main body part along the groove.

3. The medical irrigation aspirator of claim 2, wherein: the convex edge and the groove are respectively provided with three.

4. The medical irrigation aspirator of claim 1, wherein: the material of sealed pad is medical silica gel, just the one end that is close to the buffer storage chamber of sealed pad has the toper anchor ring with the internal diameter looks adaptation of main part.

5. The medical irrigation aspirator of claim 1, wherein: the guide is a pressure sensor.

6. The medical irrigation aspirator of any one of claims 1-5, wherein: the pressure regulating assembly further comprises a regulating block for driving the guide piece to slide along the guide rod.

7. The medical irrigation aspirator of claim 6, wherein: the adjusting block is slidably arranged in a guide groove arranged along the length direction of the main body piece, and a plurality of gears used for fixing the adjusting block are further arranged on the main body piece.

8. The medical irrigation aspirator of any one of claims 1-5, wherein: the irrigation aspirator comprises a detachable end cap arranged at one end of the main body piece, which is far away from the first joint.