CN111001048B

CN111001048B - Medical drainage device

Info

Publication number: CN111001048B
Application number: CN201911233875.5A
Authority: CN
Inventors: 杜广胜; 邱远; 殷久恒; 王帅; 肖卫东
Original assignee: Second Affiliated Hospital of Army Medical University
Current assignee: Second Affiliated Hospital of Army Medical University
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2022-02-08
Anticipated expiration: 2039-12-05
Also published as: CN111001048A

Abstract

The invention discloses a medical drainage device, which belongs to the invention in the field of medical equipment. The medical drainage device of the invention comprises a cylindrical tube body, the front end of the tube body is sealed, and the outer circumferential surface of the front end of the tube body is provided with a The two rows of flushing liquid inlets and outlets also include a tube core arranged in the tube body, the tube core is provided with a groove A and a groove B along its own length direction, and the groove A and the groove B extend to be close to the tube core. At the tip position, the groove A and the groove B are arranged opposite to each other with the central axis of the tube core as a symmetrical point, the outer circumferential surface of the tube core and the inner side wall of the tube body are fitted with each other, and the tube core and the tube are in contact with each other. Rotational fit between bodies. When the medical drainage device of the present invention is in operation, the flushing fluid inlet and outlet at the same position are in a state of alternating flushing and drainage, thereby effectively preventing the flushing fluid inlet and outlet from being blocked by large pieces of tissue.

Description

Medical drainage device

Technical Field

The invention relates to a medical apparatus, in particular to a medical drainage device for draining hydrops parts of patients.

Background

Surgical drainage is used for guiding pus, blood, liquid and the like accumulated in human tissues or body cavities to the outside of a body, and has the functions of preventing postoperative infection, promoting wound healing and the like. The clinical surgical drainage tubes are used in many kinds, such as ureter, pleural effusion drainage tube and abdominal effusion drainage tube.

At present, many drainage tube related technologies are disclosed in Chinese patent documents, such as ZL201120294660.7 drainage tube, ZL03255477.X drainage tube, ZL200810232986.X medical drainage device, ZL200920020649.4 thoracic drainage tube, ZL201120125482.5 drainage tube, etc. The medical drainage device, which is not limited to the above example, has the following drawbacks: firstly, the large tissue block generated in the operation is easy to block the liquid suction port; secondly, the quantity of the liquid suction ports at the front end of the drainage tube and the flushing liquid outlets is fixed, and the lengths of the effective flushing section and the drainage section at the front end of the drainage tube cannot be adjusted according to the depth of the part to be drained.

Aiming at the defects of the medical drainage device, the inventor creatively improves the prior drainage tube technology, and further solves the defects of the prior art.

Disclosure of Invention

In view of the above, the present invention provides a medical drainage device, which solves the technical problem that a fluid suction port at the front end of a drainage tube is easily blocked by large tissues during drainage.

The invention solves the technical problems by the following technical means:

the medical drainage device comprises a cylindrical pipe body, wherein the front end of the pipe body is sealed, two rows of flushing liquid inlets and outlets are formed in the outer circumferential surface of the front end of the pipe body, the two rows of flushing liquid inlets and outlets are formed by a plurality of through holes A which are arranged in parallel along the axial direction of the pipe body, the two rows of flushing liquid inlets and outlets are arranged oppositely by taking the central axis of the pipe core as a symmetrical point, the medical drainage device also comprises a pipe core arranged in the pipe body, a groove A and a groove B are formed in the pipe core along the length direction of the pipe core, the groove A and the groove B extend to positions close to the tip end of the pipe core, the groove A and the groove B are arranged oppositely by taking the central axis of the pipe core as a symmetrical point, the outer circumferential surface of the pipe core is attached to the inner side wall of the pipe body, and the pipe core is in rotating fit with the pipe body; the washing pipe is communicated with the groove A, and the drainage pipe is communicated with the groove B; the tube core driving device further comprises a driving mechanism for driving the tube body and the tube core to rotate relatively, and the driving mechanism is in transmission connection with the tube body or the tube core.

Preferably, the tail end of the tube body is fixedly connected with a handle, the outer diameter of the flushing tube is smaller than the inner diameter of the tube body, a flushing channel is formed in the center of the end face of the tail end of the tube core, the tip of the flushing tube is butted with the flushing channel, the flushing channel is communicated with the groove A, the front end of the flushing tube is coaxially and fixedly connected with the tail end of the tube core, one end of the groove A extends to a position close to the tail end of the tube core, one end of the groove B extends to the end face of the tail end of the tube core and is communicated with the end face of the tail end of the tube core, and the tail end of the tube body is communicated with the drainage tube; the flushing pipe extends out of the tail end of the pipe body to the outer side of the pipe body; the flushing pipe is characterized in that a driven gear is arranged on the outer circumferential surface of the flushing pipe and located on the outer side of the pipe body, the driven gear is arranged at the top of the handle, a driving motor is arranged in the handle, a driving gear is arranged on a power output shaft of the driving motor, the driving gear is meshed with the driven gear, a controller is arranged in the handle, the controller is connected with the driving motor, and the controller is used for the time interval frequency of the working of the driving motor.

Preferably, the grooves a and B extend helically around the central axis of the die.

Preferably, the lead of the groove A and the lead of the groove B are equal, and the pitch of the thread formed by the groove A and the groove B on the tube core is equal to the pitch between two adjacent through holes A in each row of flushing liquid inlet and outlet.

Preferably, the top of the handle is provided with a joint which can be inserted into the tail end of the pipe body, a through hole B with the same size as the outer diameter of the flushing pipe is arranged at the center of the bottom of the joint, the flushing pipe penetrates through the through hole B, and a sealing rubber ring which is sleeved on the flushing pipe and used for sealing a gap between the through hole B and the flushing pipe is arranged in the through hole B.

Preferably, the pipe wall of the outer side of the pipe body is marked with scales.

Preferably, the telescopic pipe further comprises a sleeve, the sleeve is sleeved on the pipe body, the sleeve is in sliding fit with the pipe body, the tail end of the sleeve is connected with a sliding block which is convenient for pushing and pulling the sleeve, and the numerical value of the scale corresponding to the tail end of the sleeve corresponds to the length of the front end of the pipe body extending out of the sleeve.

Preferably, the device further comprises a through hole C which penetrates through the tube core and the front end of the tube body along the axial lead of the tube core, and a guide wire is arranged in the through hole C.

The invention has the beneficial effects that: the medical drainage device comprises a cylindrical pipe body, wherein the front end of the pipe body is sealed, two rows of flushing liquid inlets and outlets are formed in the outer circumferential surface of the front end of the pipe body, the two rows of flushing liquid inlets and outlets are formed by a plurality of through holes A which are arranged in parallel along the axial direction of the pipe body, the two rows of flushing liquid inlets and outlets are arranged oppositely by taking the central axis of the pipe core as a symmetrical point, the medical drainage device also comprises a pipe core arranged in the pipe body, a groove A and a groove B are formed in the pipe core along the length direction of the pipe core, the groove A and the groove B extend to positions close to the tip end of the pipe core, the groove A and the groove B are arranged oppositely by taking the central axis of the pipe core as a symmetrical point, the outer circumferential surface of the pipe core is attached to the inner side wall of the pipe body, and the pipe core is in rotating fit with the pipe body. When the medical drainage device works, the flushing fluid inlet and outlet at the same position are in a state of alternately performing flushing and drainage, so that the situation that the flushing fluid inlet and outlet are blocked by massive tissues is effectively prevented. In addition, the medical drainage device can also adjust the lengths of the effective washing section and the drainage section at the front end of the tube body of the drainage tube according to the depth of the part to be drained.

Drawings

The invention is further described below with reference to the figures and examples.

Fig. 1 is a schematic view of the overall structure of the medical drainage device of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1, with the guidewire omitted;

FIG. 3 is a schematic perspective view of a medical drainage device embodying the present invention in which a spiral tube core is engaged with a tube body;

reference numerals:

1-tube body, 2-tube core, 3-flushing tube, 4-drainage tube, 5-handle, 6-joint, 7-through hole B, 8-sleeve, 9-slide block and 10-through hole C;

11-flushing fluid inlet and outlet, 12-guide wire, 21-groove A, 22-groove B, 23-flushing channel, 51-driven gear, 52-driving gear and 53-driving motor.

Detailed Description

The invention will be described in detail below with reference to the following drawings:

as shown in figures 1-3, the medical drainage device of the invention comprises a cylindrical tube body 1, the length of the tube body 1 is 10-20cm, the tube body 1 is made of materials such as silicon rubber or polyurethane, the front end part of the tube body 1 is sealed, two rows of flushing liquid inlets and outlets 11 are arranged on the outer circumferential surface of the front end of the pipe body 1, the two rows of flushing liquid inlets and outlets 11 are composed of a plurality of through holes A which are arranged in parallel along the axial direction of the pipe body 1, the two rows of flushing liquid inlets and outlets 11 are oppositely arranged by taking the central axis of the tube core 2 as a symmetrical point, and also comprise the tube core 2 arranged in the tube body 1, the tube core 2 is provided with a groove A21 and a groove B22 along the length direction thereof, one end of the groove A21 and one end of the groove B22 extend to a position close to the tip end of the tube core 2, the other end of the groove A21 extends to a position close to the tail end of the tube core 2, and the other end of the groove B22 extends to the tail end face of the tube core 2 and is communicated with the tail end face of the tube core 2; the groove A21 and the groove B22 are oppositely arranged by taking the central axis of the tube core 2 as a symmetrical point, the outer circumference of the tube core 2 is attached to the inner side wall of the tube body 1, the tube core 2 is in running fit with the tube body 1, the outer diameter of the tube body 1 is 1.2cm, the inner diameter of the tube body 1 is 1.0cm, the outer diameter of the tube core 2 is 1.0cm, and the widths of the notches of the groove A21 and the groove B22 are 0.5 cm;

the washing device further comprises a washing pipe 3 and a drainage pipe 4, the outer diameter of the washing pipe 3 is 0.5cm, the washing pipe 3 has certain hardness, the washing pipe 3 is communicated with the groove A21, and the drainage pipe 4 is communicated with the groove B22; the tube core driving device further comprises a driving mechanism for driving the tube body 1 and the tube core 2 to rotate relatively, and the driving mechanism is in transmission connection with the tube body 1 or the tube core 2. Specifically, a handle 5 is fixedly connected to the tail end of the tube body 1, the outer diameter of the flushing tube 3 is smaller than the inner diameter of the tube body 1, a flushing channel 23 is formed in the center of the end face of the tail end of the tube core 2, the tip of the flushing tube 3 is in butt joint with the flushing channel 23, the flushing channel 23 is communicated with the groove A21, the front end of the flushing tube 3 is coaxially and fixedly connected with the tail end of the tube core 2, and the tail end of the tube body 1 is communicated with the drainage tube 4; the flushing pipe 3 extends out of the pipe body 1 from the tail end of the pipe body 1; be located the body 1 outside be provided with driven gear 51 on the outer periphery of flushing pipe 3, driven gear 51 sets up the top at handle 5, be provided with driving motor 53 in the handle 5, be provided with driving gear 52 on driving motor 53's the power output shaft, driving gear 52 with driven gear 51 meshes, be provided with the controller that can input the instruction in the handle 5, the controller with driving motor 53 is connected, the controller is used for the time slot frequency of driving motor 53 work. More specifically, the top of the handle 5 is provided with a joint 6 which can be inserted into the tail end of the pipe body 1, a through hole B7 with the same size as the outer diameter of the flushing pipe 3 is arranged at the center of the bottom of the joint 6, the flushing pipe 3 passes through the through hole B7, and a sealing rubber ring which is sleeved on the flushing pipe 3 and is used for sealing the gap between the through hole B7 and the flushing pipe 3 is arranged in the through hole B7.

The working principle of the medical drainage device of the invention is as follows: the front end of the tube body 1 is placed into a position to be drained, one end of the drainage tube 4 is communicated with the negative pressure drainage bottle, the flushing tube 3 is communicated with the flushing liquid common supply device, when flushing and drainage are carried out, the driving motor 53 is controlled by the controller to work intermittently, if the driving motor 53 drives the tube core 2 to rotate for half a circle every 5-8 seconds, the driving motor 53 drives the flushing tube 3 to be communicated with the tube core 2 to rotate together intermittently, in the rotating process of the tube core 2, the through hole A communicated with the groove A21 carries out flushing work and the through hole A communicated with the groove B22 carries out drainage work, as massive tissues block the through hole A communicated with the groove B22 after working for a period of time, along with the rotation of the tube core 2, the blocked through hole A communicated with the groove B22 is communicated with the groove A21 to further become flushing work, when flushing work is carried out, the tissues in the blocked through hole A are flushed by the flushing liquid to be dredged, thereby solving the problem that the irrigating fluid port 11 is clogged with large pieces of tissue.

As a further improvement of the above solution, the grooves a21 and B22 extend helically around the central axis of the die 2 as shown. The grooves a21 and B22 have the same lead, and the pitch of the thread formed by the grooves a21 and B22 on the tube core 2 is equal to the pitch between two adjacent through holes a in each row of the rinse solution outlet/inlet 11. The benefit of above-mentioned setting lies in, can make body 1 wash with the work of drainage alternate ground each other in a plurality of through-hole A of one side to avoid body 1 to only can carry out unilateral drainage work and wash the work with one side, and can not make the drainage and wash the technical problem that the work goes on simultaneously.

As a further improvement of the technical scheme, scales are marked on the outer side pipe wall of the pipe body 1. The pipe body is characterized by further comprising a sleeve 8, the sleeve 8 is sleeved on the pipe body 1, the sleeve 8 is in sliding fit with the pipe body 1, the tail end of the sleeve 8 is connected with a sliding block 9 which is convenient for pushing and pulling the sleeve 8, and the numerical value of the scale corresponding to the tail end of the sleeve 8 corresponds to the length of the sleeve 8 extending out of the front end of the pipe body 1. When the tube body 1 is placed into the part to be drained of a patient, the length of the front end of the tube body 1 extending out of the sleeve 8 can be adjusted in advance according to the depth of the part to be drained, namely, the effective drainage and flushing length.

As a further improvement of the technical scheme, the device also comprises a through hole C10 which penetrates through the tube core and the front end of the tube body along the axial lead of the tube core, a guide wire 12 is arranged in the through hole C10, and the tail end of the guide wire can extend out of the flushing tube. Through setting up through-hole C and being used for alternate seal wire, conveniently lead to the drainage tube through the seal wire. Specifically, the central part of the tube core can have elasticity, the through hole C can be naturally closed when the guide wire is drawn out, and the guide wire does not influence the rotation of the tube core after the guide wire is drawn out.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A medical drainage device, comprising a cylindrical tube body (1), the front end of the tube body (1) is sealed, and the outer circumferential surface of the front end of the tube body (1) is provided with two rows of flushing liquid inlets and outlets (11). ), the two rows of flushing liquid inlets and outlets (11) are composed of a plurality of through holes A arranged in parallel along the axial direction of the pipe body (1), and the two rows of flushing liquid inlets and outlets (11) are based on the central axis of the tube core (2). The symmetrical points are arranged oppositely, and it is characterized in that: it also includes a tube core (2) arranged in the tube body (1), and the tube core (2) is provided with a groove A (21) and a groove along its own length direction. B ( 22 ), the groove A ( 21 ) and the groove B ( 22 ) extend to a position close to the tip of the die ( 2 ), the groove A ( 21 ) and the groove B ( 22 ) are connected to the die The central axis of (2) is arranged opposite to each other, the outer circumferential surface of the tube core (2) and the inner side wall of the tube body (1) are attached to each other, the tube core (2) and the tube body (1) It also includes a flushing pipe (3) and a drainage pipe (4), the flushing pipe (3) and the groove A (21) communicate with each other, and the drainage pipe (4) and the groove B (22) communicate with each other; also include a drive mechanism for driving relative rotation between the tube body (1) and the tube core (2), and the drive mechanism and the tube body (1) or the tube core (2) are in driving connection; the A handle (5) is fixedly connected to the rear end of the pipe body (1), the outer diameter of the flushing pipe (3) is smaller than the inner diameter of the pipe body (1), and a central position of the end face of the pipe core (2) is opened. A flushing channel (23), the tip of the flushing pipe (3) is butted with the flushing channel (23), the flushing channel (23) and the groove A (21) communicate with each other, and the flushing pipe (3) ) is coaxially and fixedly connected to the tail end of the tube core (2), one end of the groove A (21) extends to a position close to the tail end of the tube core (2), and the groove B (22) One end extends to the rear end face of the tube core (2) and communicates with the rear end face of the tube core (2), and the rear end of the tube body (1) communicates with the drainage tube (4); the flushing tube (3) ) extends from the rear end of the pipe body (1) to the outside of the pipe body (1); a driven gear (51) is provided on the outer circumferential surface of the flushing pipe (3) located outside the pipe body (1) , the driven gear (51) is arranged on the top of the handle (5), the handle (5) is provided with a driving motor (53), and the power output shaft of the driving motor (53) is provided with a driving gear ( 52), the driving gear (52) meshes with the driven gear (51), the handle (5) is provided with a controller, the controller is connected with the drive motor (53), the control The frequency of the time period used by the drive motor (53) to work.

2 . The medical drainage device according to claim 1 , wherein the groove A ( 21 ) and the groove B ( 22 ) extend spirally around the central axis of the tube core ( 2 ). 3 .

3. The medical drainage device according to claim 2, wherein the lead of the groove A (21) and the groove B (22) are equal, and the tube core (2) is formed by the groove A (22). 21) The pitch of the thread formed by the groove B (22) is equal to the pitch between two adjacent through holes A in each row of the flushing liquid inlet and outlet (11).

4. The medical drainage device according to claim 1, characterized in that: the top of the handle (5) is provided with a joint (6) that can be inserted into the tail end of the pipe body (1). A through hole B(7) having the same size as the outer diameter of the flushing pipe (3) is provided at the center of the bottom, and the flushing pipe (3) passes through the through hole B(7), and the through hole B (7) A sealing rubber ring sleeved on the flushing pipe (3) and used to seal the gap between the through hole B (7) and the flushing pipe (3) is provided in (7).

5. The medical drainage device according to claim 4, wherein a scale is marked on the outer tube wall of the tube body (1).

6. The medical drainage device according to claim 5, characterized in that it further comprises a sleeve (8), the sleeve (8) is sleeved on the pipe body (1), and the sleeve (8) is sleeved on the pipe body (1). ) and the pipe body (1) in sliding fit, the tail end of the sleeve (8) is connected with a slider (9) which is convenient for pushing and pulling the sleeve (8), and the tail end of the sleeve (8) corresponds to The value of the scale corresponds to the length of the front end of the pipe body (1) protruding from the sleeve (8).

7 . The medical drainage device according to claim 5 , further comprising a through hole C ( 10 ) passing through the tube core and the front end of the tube body along the axis of the tube core, and the through hole C ( 10 ). ) is provided with a guide wire.