CN113018539B

CN113018539B - Subcutaneous drainage catheter reservation device for laparoscopic surgery

Info

Publication number: CN113018539B
Application number: CN202110323713.1A
Authority: CN
Inventors: 赖苏何
Original assignee: Chongqing Bishan Peoples Hospital
Current assignee: Chongqing Bishan Peoples Hospital
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2022-04-01
Anticipated expiration: 2041-03-26
Also published as: CN113018539A

Abstract

The invention relates to the technical field of medical instruments and discloses a subcutaneous drainage catheter reserving device for laparoscopic surgery, which comprises a reserved shell, wherein a blocking film is fixedly connected to the inner wall of the reserved shell, a preset drainage catheter is arranged on the lower surface of the reserved shell, two extrusion air bags are respectively and fixedly connected to the outer surface of the reserved shell, a contraction air bag is fixedly connected to the inner wall of the bottom of the reserved shell, a penetrating supporting block is fixedly connected to the upper surface of the contraction air bag, a skin breaking blade is arranged on the upper surface of the penetrating supporting block, a drainage catheter head is arranged on the upper surface of the penetrating supporting block, an external drainage catheter is fixedly connected to the upper surface of the drainage catheter head, and a supporting mechanism is arranged on the drainage catheter head. This device is reserved to subcutaneous drainage catheter for laparoscopic surgery handles subcutaneous hydrops through the mode of reserving, has reduced the time and the expense that the patient is carrying out the required cost of subcutaneous hydrops treatment, has reduced medical personnel's the last hand degree of difficulty, efficiency when having ensured subcutaneous hydrops treatment.

Description

Subcutaneous drainage catheter reservation device for laparoscopic surgery

Technical Field

The invention relates to the technical field of medical instruments, in particular to a reserved device of a subcutaneous drainage catheter for laparoscopic surgery.

Background

The laparoscopic surgery has the advantages that the trauma is small, the damage to the internal tissues of a patient is minimized, and the pain of the wound of the patient after the surgery is obviously relieved, so that the patient can be discharged from a hospital more quickly after the surgery, the laparoscopic surgery is paid great attention, and the laparoscopic surgery is widely applied to the treatment of inguinal hernia particularly.

However, according to the published medical academic report of risk factor analysis of subcutaneous effusion after laparoscopic premenstrual hernia repair, it is pointed out that the probability of effusion occurring under the skin after hernia repair is high, especially the effusion of the scrotum and the effusion or hematoma in the operation area are long, and the effusion of some patients is long, so that various complications can be caused seriously to influence the physical health of the patients. Most of subcutaneous hydrops processing methods are puncture drawing liquid or put the pipe drainage at present, the drainage mode need shine the position of subcutaneous hydrops through the color Doppler ultrasound at first, then by inserting the drainage tube into the internal subcutaneous hydrops department of patient, finally discharge the internal subcutaneous hydrops of patient under the effect of negative pressure, but human internal environment is comparatively complicated, medical personnel need operate to the color Doppler ultrasound display screen, thereby bring the inconvenient operation for medical personnel, the patient needs the exposure time at the in-process that carries out the color Doppler ultrasound simultaneously, patient's pain has further been increased like this.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the subcutaneous drainage catheter reservation device for laparoscopic surgery, which has the advantages of reducing the time of a patient during the drainage surgery and the like, and solves the problem that the position of a subcutaneous effusion is needed to be irradiated by a color ultrasonic in the first drainage mode is relatively troublesome.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the subcutaneous drainage catheter reserving device for laparoscopic surgery comprises a reserved shell, wherein the inside of the reserved shell is hollow and has no upper surface, a blocking film is fixedly connected to the inner wall of the reserved shell, a preset drainage tube is arranged on the lower surface of the reserved shell, a prefabricated needle head is arranged at the lower end of the preset drainage tube, two extrusion air bags are respectively and fixedly connected to the outer surface of the reserved shell, a contraction air bag is fixedly connected to the inner wall of the bottom of the reserved shell, a communicating pipe is fixedly connected to the surface of one side, opposite to the two extrusion air bags, of the communicating pipe, one end, opposite to the extrusion air bags, of the communicating pipe penetrates into the inside of the reserved shell and is fixedly installed on the contraction air bags, a penetrating support block is fixedly connected to the upper surface of each contraction air bag, a skin breaking blade is arranged on the upper surface of the penetrating support block, a drainage tube head is arranged on the upper surface of the penetrating support block, and an external drainage tube is fixedly connected to the upper surface of the drainage tube head, the upper surface of the penetrating supporting block is fixedly connected with a thread block, the lower surface of the peeling blade is provided with a thread groove matched with the thread block, the peeling blade is in threaded connection with the thread block through the thread groove, the lower surface of the drainage tube head is also provided with a thread groove matched with the thread block, the drainage tube head is in threaded connection with the thread block through the thread groove, the drainage tube head is provided with a supporting mechanism, a communicating pipe is respectively communicated with an extrusion air bag and a contraction air bag, the upper end of the preset drainage tube penetrates into the reserved shell and is in sliding connection with the reserved shell, the structure of the contraction air bag is in a circular ring shape, the upper end of the preset drainage tube sequentially penetrates through the contraction air bag, run through supporting shoe and screw thread piece, preset the drainage tube and run through supporting shoe fixed connection, preset the upper end of drainage tube and extend the upper surface of screw thread piece, the lower extreme of external drainage tube runs through the drainage tube head and extends into the thread groove.

Preferably, the supporting mechanism includes the contact tenon piece, the upper end fixed connection of contact tenon piece is at the lower surface of drainage tube head, run through the upper surface of supporting shoe and offer the contact tongue-and-groove identical with the contact tenon piece, the contact tenon piece splices with the contact tongue-and-groove, run through and offer four activity standing grooves on the surface of supporting shoe respectively, the structure in four activity standing grooves is the same and is the form setting of circumference array, activity standing groove internal rotation is connected with joint support board, joint support board's lower extreme and the inner wall of activity standing groove rotate to be connected, run through and offer four built-in activity grooves in the supporting shoe respectively, four built-in activity grooves are in same vertical position with four activity standing grooves respectively, the connection structure in four built-in activity grooves is the same and is the form setting of circumference array.

Preferably, the contact tenon block is arranged in a circular ring shape, and the cross section of the contact tenon block is arranged in a U shape.

Preferably, fixedly connected with supports the turning block on the bottom inner wall of built-in activity groove, the upper end that supports the turning block is rotated and is connected with the activity and changes the board, the center department that the activity changes the board sets up on supporting the turning block, the lower surface that the activity changes the board rotates and is connected with the latch segment, the latch segment sets up on the right-hand member of activity commentaries on classics board, the lower extreme of latch segment runs through built-in activity groove in proper order and runs through the supporting shoe and finally extends into the activity standing groove, latch segment and the inner wall sliding connection who runs through the supporting shoe, the latch segment has been seted up to the upper surface of joint support board, the lower extreme and the locking groove joint of latch segment, the upper surface of activity commentaries on classics board rotates and is connected with the contact piece, the contact piece sets up on the left end of activity commentaries on classics board, the upper end of contact piece runs through built-in proper order and runs through the supporting shoe and finally extends into the contact tongue-groove, the inner wall sliding connection of contact piece and the supporting shoe.

Preferably, the upper end of the contact block is semicircular.

The principle of the basic scheme is as follows: the two extrusion air bags are extruded, so that the gas in the two extrusion air bags is conveyed into the contraction air bag through the communicating pipe, the gas density in the contraction air bag is increased, the contraction air bag expands, the penetration supporting block is pushed to move upwards, the skin breaking blade penetrates the subcutaneous tissue and the skin of the patient, and the penetration supporting block is replaced out of the body of the patient; the skin breaking blade is detached from the penetrating supporting block, and the drainage tube head is arranged on the penetrating supporting block, so that the external drainage tube on the drainage tube head is superposed with the preset drainage tube in the through supporting block, and the contact tenon block is superposed with the contact mortise at the same time, thereby the contact tenon block is contacted with the contact block, and downward extrusion force is formed on the contact block, so that the contact block is retracted into the built-in movable groove, thereby the left end of the movable rotating plate is displaced downwards, the right end of the movable rotating plate drives the locking block to displace upwards, the locking block is not contacted with the connecting support plate, thereby the upper end of the connecting support plate is turned out of the movable placing groove under the action of inertia, so that medical personnel can use the medical adhesive plaster to adhere the connecting support plate on the skin of a patient, thereby form the fixed stay effect to running through the supporting shoe through four joint support boards, prevented to run through the supporting shoe in the drainage process and the condition that the disorder appears.

The beneficial effect of this basic scheme lies in: through this kind of mode reduced the patient in the time that carries out the required cost of subcutaneous hydrops treatment for the speed to the internal subcutaneous hydrops treatment of patient has also reduced medical personnel's the last hand degree of difficulty simultaneously, efficiency when having ensured subcutaneous hydrops treatment.

(III) advantageous effects

Compared with the prior art, the invention provides a subcutaneous drainage catheter reservation device for laparoscopic surgery, which has the following beneficial effects:

1. this device is reserved to subcutaneous drainage tube for laparoscopic surgery, install at the patient's is internal through will reserving the shell at first, when subcutaneous hydrops appears in the attached position of patient hernia repair piece, medical personnel only need extrude the extrusion gasbag, thereby reserve the broken skin blade in the shell and pierce through patient's skin and will run through the supporting shoe and replace, thereby it just can discharge the subcutaneous hydrops in the patient body to change the broken skin blade for the drainage tube head, time and the expense that the patient is carrying out the required cost of subcutaneous hydrops treatment have been reduced through this kind of mode, the speed to the treatment of subcutaneous hydrops in the patient body has been accelerated, medical personnel's the last hand degree of difficulty has also been reduced simultaneously, efficiency when having ensured the subcutaneous hydrops treatment.

2. This subcutaneous drainage catheter reservation device is used in laparoscopic surgery, through being provided with supporting mechanism, thereby when changing for the drainage tube head, the activity standing groove is rolled over out in the upper end of joint support board under inertial effect, thereby medical personnel can use medical adhesive tape to bond joint support board on patient's skin, thereby form the fixed stay effect to running through the support piece through four joint support boards, prevented to run through the supporting shoe in the drainage process and the condition of touching has appeared, ensured the stability when subcutaneous hydrops treatment.

3. This subcutaneous drainage catheter reservation device for laparoscopic surgery is provided with contact tongue-and-groove and contact tenon piece between the drainage tube head and the supporting shoe that runs through respectively to the drainage tube head with run through between the supporting shoe when coincide, the butt joint tongue-and-groove with to the joint tenon piece concatenation be one, increased the drainage tube head like this and run through the leakproofness between the supporting shoe, further avoided in the outside air enters into the drainage tube head, improved the stability during subcutaneous hydrops drainage treatment.

4. This subcutaneous drainage catheter reservation device for laparoscopic surgery makes broken skin blade puncture patient's skin through the mode of extrusion gasbag, has further reduced reservation shell self weight like this, has prevented to reserve the condition that the shell drops and has appeared, has reduced the burden that the human body needs bore.

5. This subcutaneous drainage catheter reservation device for laparoscopic surgery sets up the upper end of contact block to semicircle form and the cross-section of contact tenon piece sets up to "U" word form to increased the smooth degree of contact surface between the two, reduced the frictional force that forms when contacting between the two, guaranteed the smoothness nature of contact tenon piece when to the contact block extrusion like this, avoided appearing the dead condition of mechanical card.

Drawings

FIG. 1 is a schematic structural view of a subcutaneous drainage catheter reserving device for laparoscopic surgery according to the present invention;

FIG. 2 is a schematic view showing a cross-sectional structure of the inside of the device for reserving a subcutaneous drainage catheter for laparoscopic surgery according to the present invention;

FIG. 3 is a schematic view of the present invention in a disassembled configuration between the transfixion block and the deflating bladder;

FIG. 4 is a schematic view of a split structure of the penetration support block and the skin breaking blade of the present invention;

FIG. 5 is a schematic view of a second embodiment of the present invention illustrating the connection structure of the through support blocks;

FIG. 6 is a schematic bottom view of a catheter tip of the present invention;

FIG. 7 is a schematic front plan view of the internal structure of the built-in movable slot of the present invention in an initial state;

fig. 8 is a schematic structural view of the inner structure of the built-in movable slot in the use state.

In the figure: the device comprises a reserved shell 1, a preset drainage tube 2, a blocking film 3, an extrusion air bag 4, a communicating tube 5, a contraction air bag 6, a penetration supporting block 7, a peeling blade 8, a thread block 9, a connecting supporting plate 10, a movable placing groove 11, a drainage tube head 12, an external drainage tube 13, a contact tenon block 14, a contact tenon groove 15, a locking groove 16, a movable groove 17, a supporting rotating block 18, a locking block 19, a contact block 20 and a movable rotating plate 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a new technical solution: the scheme provides two embodiments;

in the first embodiment, please refer to fig. 1 to 4:

the medical drainage tube comprises a reserved shell 1, the reserved shell 1 is made of PVC (polyvinyl chloride) or other nontoxic rigid plastic materials, the interior of the reserved shell 1 is hollow and has no upper surface, a blocking film 3 is fixedly connected to the inner wall of the reserved shell 1, the upper surface of the blocking film 3 and the upper surface of the reserved shell 1 are at the same horizontal position, the blocking film 3 is a medical polypropylene fiber woven mesh, a preset drainage tube 2 is arranged on the lower surface of the reserved shell 1, the upper end of the preset drainage tube 2 penetrates into the interior of the reserved shell 1, the preset drainage tube 2 is in sliding connection with the reserved shell 1, and a prefabricated needle head is arranged at the lower end of the preset drainage tube 2;

the outer surface of the reserved shell 1 is fixedly connected with two extrusion air bags 4 respectively, the two extrusion air bags 4 are made of silicon rubber materials, the extrusion air bags 4 are full of gas, the inner wall of the bottom of the reserved shell 1 is fixedly connected with a contraction air bag 6, the contraction air bag 6 and the extrusion air bags 4 are made of the same material, the surface of one side, opposite to the two extrusion air bags 4, of the communication pipe 5 is fixedly connected with the communication pipe 5, the communication pipe 5 is communicated with the extrusion air bags 4, one end, opposite to the extrusion air bags 4, of the communication pipe 5 penetrates into the reserved shell 1 and is fixedly installed on the contraction air bags 6, the communication pipe 5 is communicated with the contraction air bags 6, so that the gas in the extrusion air bags 4 can enter the contraction air bags 6 through the communication pipe 5, the structure of the contraction air bags 6 is arranged to be circular, the upper end, opposite to the preset drainage tube 2, penetrates through the center ring of the contraction air bags 6, and the upper surface of the contraction air bags 6 is fixedly connected with a penetration supporting block 7, the penetration supporting block 7 is arranged at the center of the upper surface of the contraction air bag 6, so that a central ring, which extends out of the contraction air bag 6, of the upper end of the preset drainage tube 2 is arranged on the lower surface of the penetration supporting block 7, a bark breaking blade 8 is arranged on the upper surface of the penetration supporting block 7, the structure of the bark breaking blade 8 is in an equilateral triangular column shape, the material of the bark breaking blade 8 is titanium alloy, a thread block 9 is fixedly connected to the upper surface of the penetration supporting block 7, a thread groove matched with the thread block 9 is formed in the lower surface of the bark breaking blade 8, the bark breaking blade 8 is in threaded connection with the thread block 9 through the thread groove, the upper end of the preset drainage tube 2 sequentially penetrates through the penetration supporting block 7 and the thread block 9, and the upper surface of the thread block 9 extends out of the upper end of the preset drainage tube 2;

the reserved shell 1 is installed at the position of a subcutaneous hernia repair patch of a patient in a mode of binding a laparoscope manipulator through a suture, a prefabricated needle head of a preset drainage tube 2 is penetrated into the subcutaneous position of the hernia repair patch of the patient through the manipulator again, when subcutaneous effusion appears at the position of the hernia repair patch of the patient, two extrusion air bags 4 are extruded, so that gas in the two extrusion air bags 4 is conveyed into a contraction air bag 6 through a communicating pipe 5, the density of the gas in the contraction air bag 6 is increased, the contraction air bag 6 is expanded, a penetrating supporting block 7 is pushed to move upwards, a skin breaking blade 8 sequentially penetrates through a separation film 3, the hernia repair patch and the skin of the patient, and the penetrating supporting block 7 is replaced out of the body of the patient;

in the second embodiment, please refer to fig. 5-8:

the second embodiment is modified on the basis of the first embodiment;

a drainage tube head 12 is arranged on the upper surface of the penetrating support block 7, a thread groove matched with the thread block 9 is also formed in the lower surface of the drainage tube head 12, so that the drainage tube head 12 is in threaded connection with the thread block 9 through the thread groove, an external drainage tube 13 is fixedly connected to the upper surface of the drainage tube head 12, a drainage bottle is connected to the upper end of the external drainage tube 13, the lower end of the external drainage tube 13 penetrates through the drainage tube head 12 and extends into the thread groove, so that the external drainage tube 13 is communicated with the thread groove, and when the drainage tube head 12 is arranged on the penetrating support block 7, the external drainage tube 13 is superposed with the preset drainage tube 2;

four movable placing grooves 11 are respectively arranged on the outer surface of the through supporting block 7, the structures in the four movable placing grooves 11 are the same and are arranged in a circumferential array mode, a connecting supporting plate 10 is connected in the movable placing grooves 11 in a rotating mode, the lower end of the connecting supporting plate 10 is connected with the inner wall of the movable placing grooves 11 in a rotating mode, a contact tenon groove 15 is arranged on the upper surface of the through supporting block 7, the contact tenon groove 15 is arranged in a circular ring mode, the contact tenon groove 15 is arranged on the outer ring of the threaded groove, the cross section of the contact tenon groove 15 is arranged in a U shape, a contact tenon block 14 matched with the contact tenon groove 15 is fixedly connected to the lower surface of the drainage tube head 12, the contact tenon block 14 is spliced with the contact tenon groove 15, four built-in movable grooves 17 are respectively arranged in the through supporting block 7, and the four built-in movable grooves 17 are respectively at the same vertical position with the four movable placing grooves 11, the connection structures in the four built-in movable grooves 17 are the same and are arranged in a circumferential array mode, the inner wall of the bottom of each built-in movable groove 17 is fixedly connected with a supporting rotating block 18, the upper end of each supporting rotating block 18 is rotatably connected with a movable rotating plate 21, the center of each movable rotating plate 21 is arranged on each supporting rotating block 18, the lower surface of each movable rotating plate 21 is rotatably connected with a locking block 19, each locking block 19 is arranged at the right end of each movable rotating plate 21, the lower end of each locking block 19 sequentially penetrates through the built-in movable grooves 17 and the corresponding supporting blocks 7 and finally extends into the corresponding movable placing groove 11, each locking block 19 is slidably connected with the inner wall of the corresponding supporting block 7, the width of a channel, penetrating through the corresponding locking block 19, between the built-in movable grooves 17 and the corresponding movable placing grooves 11 is larger than the width of each locking block 19, the situation that the locking blocks 19 are mechanically locked when sliding up and down is avoided, and the locking grooves 16 are formed in the upper surface of the connecting supporting plate 10, so that the lower end of the locking block 19 is clamped with the locking groove 16, thereby fixing the connection support plate 10 in the movable placing groove 11;

the upper surface of activity commentaries on classics board 21 rotates and is connected with contact piece 20, contact piece 20 sets up on the left end of activity commentaries on classics board 21, contact piece 20's weight is less than latch segment 19's weight simultaneously, derive according to lever principle, the initial condition of activity commentaries on classics board 21 is the right-hand member downward sloping of activity commentaries on classics board 21, the perk that makes progress of the left end of activity commentaries on classics board 21, thereby contact piece 20's upper end runs through in proper order and runs through built-in movable groove 17 and run through supporting shoe 7 and finally extend into contact tongue-groove 15, contact piece 20 runs through the width of passageway between built-in movable groove 17 and the contact tongue-groove 15 and is greater than contact piece 20's width, and contact piece 20's upper end sets up to the semicircle form.

The working principle is as follows: when the subcutaneous drainage catheter reserving device for laparoscopic surgery is used, the reserved shell 1 is arranged at the position of a subcutaneous hernia repair patch of a patient in a manner of being bound by a laparoscopic manipulator through a suture before the hernia repair patch is carried out on the patient, the prefabricated needle head of the preset drainage catheter 2 is penetrated into the subcutaneous position of the hernia repair patch of the patient through the manipulator again, when subcutaneous effusion appears at the position of the hernia repair patch of the patient, two extrusion air bags 4 are extruded, so that gas in the two extrusion air bags 4 is conveyed into a contraction air bag 6 through a communicating pipe 5, so that the gas density in the contraction air bag 6 is increased, the contraction air bag 6 is expanded, so that a penetrating support block 7 is pushed to move upwards, so that a skin breaking blade 8 sequentially penetrates through a repair barrier film 3, the hernia patch and the skin of the patient, and the penetrating support block 7 is replaced out of the body of the patient;

the skin breaking blade 8 is detached from the through supporting block 7, and then the drainage tube head 12 is installed on the through supporting block 7, so that the external drainage tube 13 on the drainage tube head 12 coincides with the preset drainage tube 2 in the through supporting block 7, and simultaneously the contact tenon 14 coincides with the contact tenon groove 15, so that the contact tenon 14 contacts with the contact block 20, so that a downward extrusion force is formed on the contact block 20, so that the contact block 20 is contracted into the built-in movable groove 17, so that the left end of the movable rotating plate 21 is downwardly displaced, so that the right end of the movable rotating plate 21 drives the locking block 19 to upwardly displace, so that the locking block 19 is not in contact with the connecting supporting plate 10, so that the upper end of the connecting supporting plate 10 is overturned out of the movable placing groove 11 under the action of inertia, so that medical personnel can use the adhesive plaster to adhere the connecting supporting plate 10 to the skin of a patient, so that a fixed supporting effect is formed on the through supporting block 7 by the four connecting supporting plates 10, the condition that the supporting block 7 runs through in the drainage process and is disturbed is prevented.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Laparoscopic surgery is with subcutaneous drainage catheter reservation device, including reserving shell (1), the inside of reserving shell (1) is cavity and no upper surface, its characterized in that: the inner wall of the reserved shell (1) is fixedly connected with a blocking film (3), the lower surface of the reserved shell (1) is provided with a preset drainage tube (2), the lower end of the preset drainage tube (2) is provided with a prefabricated needle head, the outer surface of the reserved shell (1) is respectively and fixedly connected with two extrusion air bags (4), the inner wall of the bottom of the reserved shell (1) is fixedly connected with a contraction air bag (6), the opposite side surfaces of the two extrusion air bags (4) are respectively and fixedly connected with a communicating pipe (5), one end of the communicating pipe (5) back to the extrusion air bags (4) penetrates into the reserved shell (1) and is fixedly installed on the contraction air bag (6), the upper surface of the contraction air bag (6) is fixedly connected with a penetrating support block (7), the upper surface of the penetrating support block (7) is provided with a skin breaking blade (8), and the upper surface of the penetrating support block (7) is provided with a drainage tube head (12), the upper surface of the drainage tube head (12) is fixedly connected with an external drainage tube (13), the upper surface penetrating through the supporting block (7) is fixedly connected with a thread block (9), the lower surface of the peeling blade (8) is provided with a thread groove matched with the thread block (9), the peeling blade (8) is in threaded connection with the thread block (9) through the thread groove, the lower surface of the drainage tube head (12) is also provided with a thread groove matched with the thread block (9), the drainage tube head (12) is in threaded connection with the thread block (9) through the thread groove, a supporting mechanism is arranged on the drainage tube head (12), a communicating pipe (5) is respectively communicated with an extrusion air bag (4) and a contraction air bag (6), the upper end of the preset drainage tube (2) penetrates into the inside of the reserved shell (1), the preset drainage tube (2) is in sliding connection with the reserved shell (1), the structure of the contraction air bag (6) is arranged in a circular ring shape, the upper end of the preset drainage tube (2) sequentially penetrates through the contraction air bag (6), the supporting block (7) and the thread block (9), the preset drainage tube (2) is fixedly connected with the supporting block (7), the upper end of the preset drainage tube (2) extends out of the upper surface of the thread block (9), and the lower end of the external drainage tube (13) penetrates through the drainage tube head (12) and extends into the thread groove.

2. The hypodermic drainage catheter reservation device for laparoscopic surgery according to claim 1, wherein: the supporting mechanism comprises a contact tenon block (14), the upper end of the contact tenon block (14) is fixedly connected to the lower surface of the drainage tube head (12), a contact tenon groove (15) which is matched with the contact tenon block (14) is formed in the upper surface of the through supporting block (7), the contact tenon block (14) is spliced with the contact tenon groove (15), four movable placing grooves (11) are respectively formed in the outer surface of the through supporting block (7), the four movable placing grooves (11) are identical in structure and arranged in a circumferential array mode, a connecting supporting plate (10) is rotationally connected in each movable placing groove (11), the lower end of each connecting supporting plate (10) is rotationally connected with the inner wall of each movable placing groove (11), four built-in movable grooves (17) are respectively formed in the through supporting block (7), and the four built-in movable grooves (17) are respectively in the same vertical position with the four movable placing grooves (11), the connecting structures in the four built-in movable grooves (17) are the same and are arranged in a circumferential array.

3. The hypodermic drainage catheter reservation apparatus for laparoscopic surgery according to claim 2, wherein: the contact tenon block (14) is arranged in a circular ring shape, and the section of the contact tenon block (14) is arranged in a U shape.

4. The hypodermic drainage catheter reservation apparatus for laparoscopic surgery according to claim 2, wherein: the inner wall of the bottom of the built-in movable groove (17) is fixedly connected with a supporting rotating block (18), the upper end of the supporting rotating block (18) is rotatably connected with a movable rotating plate (21), the center of the movable rotating plate (21) is arranged on the supporting rotating block (18), the lower surface of the movable rotating plate (21) is rotatably connected with a locking block (19), the locking block (19) is arranged at the right end of the movable rotating plate (21), the lower end of the locking block (19) sequentially penetrates through the built-in movable groove (17) and the supporting block (7) and finally extends into the movable placing groove (11), the locking block (19) is slidably connected with the inner wall penetrating through the supporting block (7), the upper surface of the connecting supporting plate (10) is provided with a locking groove (16), the lower end of the locking block (19) is clamped with the locking groove (16), the upper surface of the movable rotating plate (21) is rotatably connected with a contact block (20), and the contact block (20) is arranged at the left end of the movable rotating plate (21), the upper end of the contact block (20) penetrates through the built-in movable groove (17) and the supporting block (7) in sequence and finally extends into the contact mortise (15), and the contact block (20) is connected with the inner wall of the supporting block (7) in a sliding mode.

5. The hypodermic drainage catheter reservation apparatus for laparoscopic surgery according to claim 4, wherein: the upper end of the contact block (20) is semicircular.