CN217988137U

CN217988137U - Peritoneoscope inflatable hepatic portal blocking device

Info

Publication number: CN217988137U
Application number: CN202122392715.4U
Authority: CN
Inventors: 万雪帅; 吴香安; 邢家利; 杜顺达
Original assignee: Peking Union Medical College Hospital Chinese Academy of Medical Sciences
Current assignee: Peking Union Medical College Hospital Chinese Academy of Medical Sciences
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-12-09
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to a peritoneoscope inflatable hepatic portal blocking device, first sleeve pipe, second sleeve pipe including interconnect, first sleeve pipe one end is the pointed end, and all the other parts are the hollow tube, be provided with first gasbag on the hollow tube, first gasbag one side is provided with the second gasbag that is used for the air cushion flow, the position that lies in on the hollow tube between first gasbag, the second gasbag be provided with the trepanning of pointed end adaptation, the trepanning does not communicate with the hollow tube, the second sleeve pipe other end is connected and is used for the inflatable sacculus. The inflatable type laparoscopic porta hepatis blocker is adjustable in blocking part clamping degree, safe and high in practicability.

Description

Peritoneoscope inflatable hepatic portal blocking device

Technical Field

The utility model relates to a surgical instrument and a device for ligating or pressing a tubular part in a body, in particular to a laparoscope inflatable porta hepatis blocker.

Background

The liver blood supply is rich, the bleeding is much in the hepatectomy, the commonly used hepatic blood flow blocking method for the laparotomy is the Pringle technique, the operation under the laparoscope has certain difficulty, and a special puncture hole is required to be occupied to operate the forceps holder blocking belt, the application and the development of the hepatic blood flow blocking technology under the laparoscope are important bases of the development of the hepatectomy technology, the application and the development are important preconditions for carrying out the laparoscopic hepatectomy on a large scale, and the laparoscopic instrument can be said to become the bottleneck of the development of the laparoscopic hepatectomy to a certain extent.

However, the degree of tightness is fixed to current hepatic portal blocking device relies on doctor's experience and handle completely and holds, has great blindness, and fixed tension leads to blood vessel and tissue damage easily, and fixed tension leads to intraoperative hemorrhage easily, has fixed not firm risk to aerifing the in-process, atmospheric pressure short time sharply increases, and the blocking device causes secondary damage to the blood vessel easily.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a block that position presss from both sides tight adjustable, the security is secure and peritoneoscope inflatable hepatic portal block ware that the practicality is strong.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model relates to a peritoneoscope inflatable hepatic portal blocking device, first sleeve pipe, second sleeve pipe including interconnect, first sleeve pipe one end is the pointed end, and all the other parts are the hollow tube, be provided with first gasbag on the hollow tube, first gasbag one side is provided with the second gasbag that is used for the air cushion flow, the position that lies in on the hollow tube between first gasbag, the second gasbag be provided with the trepanning of pointed end adaptation, the trepanning does not communicate with the hollow tube, the second sleeve pipe other end is connected and is used for the inflatable sacculus.

The utility model relates to a peritoneoscope inflatable hepatic portal blocking device, the second gasbag is inside to be divided into buffer zone and air intake region through the separate layer, buffer zone and hollow tube intercommunication, the regional inside buffer structure that is provided with of air intake.

The utility model relates to a peritoneoscope inflatable porta hepatis blocker, buffer structure is including butt joint the big diameter mouth, minor diameter mouth and the well diameter mouth of intercommunication in proper order, the relation between bore b of big diameter mouth, the bore c of well diameter mouth, the minor diameter mouth bore a is that b > c > a.

The utility model relates to a peritoneoscope inflatable hepatic portal block device, well diameter mouth is round platform form and the big one end of bottom surface diameter and hollow tube intercommunication, and the one end that the bottom surface diameter is little docks and communicates with minor diameter mouth is coaxial, and the major diameter mouth is fixed in on the separate layer and through-hole and the buffer area at separate layer middle part intercommunication.

The utility model relates to a peritoneoscope inflatable porta hepatis blocker, the inside connecting piece that is equipped with of first sleeve one end, the inside bell mouth that is equipped with of connecting piece, second sleeve one end be provided with connecting piece complex plug, the plug insert in the bell mouth and rather than the activity block.

The utility model relates to a peritoneoscope inflatable hepatic portal blocker, second sleeve one side is provided with the gas vent, gas vent internal thread sealing connection has the plunger.

The utility model relates to a peritoneoscope inflatable liver door blocker, the second sleeve passes through the gas-supply pipe connection the sacculus, near the junction of second sleeve and gas-supply pipe is provided with check valve one.

The utility model relates to a peritoneoscope inflatable hepatic portal blocking device, the sacculus opposite side is provided with check valve two.

The utility model relates to a peritoneoscope inflatable hepatic portal blocking device, install the barometer on the gas-supply pipe.

The utility model relates to a peritoneoscope inflatable hepatic portal blocking device has following beneficial effect at least:

the position that is close to first gasbag on the first sleeve pipe sets up the second gasbag that is used for buffering the air current, when pressing the sacculus and aerifing for first gasbag, the runner cross-section size that the air current flows through changes, and the buffering changes gas flow, avoids the pressing force degree too big to lead to the interior air pressure of hollow tube to sharply increase and then makes first gasbag suddenly swell by a wide margin, and the position damage blood vessel needs to be blocked to the tight centre gripping of mistake, has realized the adjustable control of tight degree of clamp, has guaranteed the security of operation in-process. In addition, set up connecting piece, the plug of mutual adaptation between first, the second sleeve pipe, when inserting the plug in first sleeve pipe, the bell mouth in the connecting piece leads to the plug, is showing to have reduced the operation degree of difficulty in narrow and small space, has increased the leakproofness of connecting face department simultaneously, avoids gas loss and leads to atmospheric pressure unbalance, and the practicality is stronger.

Drawings

Fig. 1 is a schematic perspective view of an inflatable laparoscopic porta hepatis blocker according to the present invention;

FIG. 2 is a front view of the inflatable laparoscopic porta hepatis blocker of the present invention;

FIG. 3 is a top view of the inflatable laparoscopic porta hepatis blocker of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at C;

FIG. 5 isbase:Sub>A sectional view taken along line A-A of FIG. 3 (the second check valve is omitted);

FIG. 6 is a partial enlarged view of the portion B in FIG. 5;

fig. 7 is a partial enlarged view of fig. 5 at D.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 7, the utility model relates to a peritoneoscope inflatable porta hepatis blocker, including first sleeve pipe 1, first sleeve pipe 1 is this blocker's main connection structure, first sleeve pipe 1 left end is cylindric pointed end 6, all the other parts are hollow tube 11, pointed end 6 left end is sealed, the inside coaxial interval of hollow tube 11 is provided with first gasbag 3, second gasbag 8, the volume of first gasbag 3 is greater than the volume of second gasbag 8 and both internal diameters all are greater than hollow tube 11's pipe diameter, lie in first gasbag 3 on the hollow tube 11, trepanning 9 has been seted up to the position between the second gasbag 8, trepanning 9 shape and the above-mentioned pointed end 6 adaptation and not communicate with hollow tube 11, gaseous can not follow trepanning 9 and leak.

The interior of the second airbag 8 is divided into a cushion region 82 and an air intake region 83 by a partition layer 81, the cushion region 82 is located on the left side and communicates with the hollow tube 11, and the air intake region 83 is located on the right side and has a cushion structure therein. The buffer structure comprises a large-diameter port 12, a small-diameter port 13 and a middle-diameter port 14, the relation between the caliber b of the large-diameter port 12, the caliber c of the middle-diameter port 14 and the caliber a of the small-diameter port 13 is that b & gtc & gta, the middle-diameter port 14 is in a circular truncated cone shape, one end with the large bottom diameter is communicated with the hollow pipe 11, one end with the small bottom diameter is coaxially butted and communicated with the right end of the small-diameter port 13, and meanwhile, one end with the large bottom diameter of the middle-diameter port 14 is circumferentially attached to the inner wall of the air inlet area 83 to prevent air from flowing into the space between the inner wall and the inner wall, and the air can only pass through the buffer structure. The left end of minor diameter mouth 13 and the coaxial butt joint of the right-hand member of major diameter mouth 12 and intercommunication, the left end of major diameter mouth 12 is fixed in the separate layer 81 and is linked together through the through-hole in the middle part of separate layer 81 and buffer area 82, gaseous from the right-hand member get into behind the first sleeve 1, in proper order through middle diameter mouth 14, minor diameter mouth 13, major diameter mouth 12 gets into and is carried to first gasbag 3 after the buffer area 82 cushions the velocity of flow in, make first gasbag 3 bulge gradually press from both sides tight operation position, effectively avoid gaseous rapid inflow hollow tube 11 inside make its inside atmospheric pressure rapid change and then lead to first gasbag 3 volume change too big, the safety in utilization is showing and is improving.

The right-hand member of first sleeve pipe 1 is connected with rather than the second sleeve pipe 2 that communicates, and is concrete, the inside connecting piece 10 that is provided with of 1 right-hand member port of first sleeve pipe, and connecting piece 10 is for dismantling with this port and be connected, during the installation, struts the port and puts into connecting piece 10, and the back that finishes, first sleeve pipe 1 makes the port retract to press from both sides tight connecting piece 10 based on self elasticity, and such mode is convenient for change connecting piece 10. Be formed with bell mouth 101 in the connecting piece 10, second sleeve 2 left end integrated into one piece have stretch out left and with the hollow circular cylinder form plug 7 of the inside intercommunication of second sleeve 2, the big right-hand member of bell mouth 101 opening docks with second sleeve 2, plug 7 inserts the cylindrical hole portion of bell mouth 101 and rather than the activity block, makes things convenient for the dismouting. The joint of the first sleeve 1 and the second sleeve 2 is provided with a common sealing gasket to prevent air leakage. The taper hole 101 plays a limiting and guiding role in inserting the plug 7, so that the second sleeve 2 is quickly and reliably connected with the first sleeve 1, the operation time is shortened, and the whole installation of the blocker is more convenient. Meanwhile, the plug 7 is inserted into the tapered hole 101 to connect the first sleeve 1 and the second sleeve 2, and the sealing performance is better than that of the direct connection of the two. In order to facilitate air exhaust and pressure relief, an air exhaust port 21 is formed in one side of the second sleeve 2, a plunger 22 is connected to the inner thread of the air exhaust port 21 in a sealing mode, and the plunger 22 seals the air exhaust port 21 when located in the air exhaust port 21, so that air tightness is guaranteed.

The right end of the second sleeve 2 is connected with a balloon 4 for inflation through a gas transmission pipe 41, and gas can be transmitted to the left by squeezing the balloon 4. The second sleeve 2 is connected with the air conveying pipe 41 in a sealing mode, a one-way valve I5 is arranged near the connection position, and meanwhile, a one-way valve II 42 is arranged on the other side of the balloon 4 to guarantee stable air pressure during inflation or exhaust. The two check valves are all the existing mature products, so the specific structure and the use refer to the conventional technology, and are not described herein again.

The utility model relates to a peritoneoscope inflatable hepatic portal blocking device, first sleeve pipe 1, second sleeve pipe 2 are the elastic tube, like silicone tube, rubber tube. Before the use, first gasbag 3, second gasbag 8 are neither bloated, insert sharp-end portion 6 in trepanning 9, make first gasbag 3 encircle the position that needs to block the blood flow, press sacculus 4 and carry the air current to the left, the air current gets into in second sleeve pipe 2 through gas-supply pipe 41, carried to first sleeve pipe 1 in through plug 7, then get into buffer zone 82 after the medium diameter mouth 14, little diameter mouth 13, the big diameter mouth 12 regulation velocity of flow that bore size differs in proper order, the internal diameter of second gasbag 8 is greater than the internal diameter of hollow tube 11, so the air current gets into hollow tube 11 when the buffer zone 82 gets into from big diameter mouth 12, the velocity of flow is adjusted, the flow is buffered, then, the air current gets into first gasbag 3 along the space around trepanning 9 on hollow tube 11 and makes it gradually bloated and clamp the position that needs to block the blood flow, realize blocking the purpose. Preferably, an air pressure gauge (not shown in the figure) is arranged on the air conveying pipe 41, so that the air pressure can be checked in real time conveniently, the inflation quantity can be controlled accurately, and the blocking effect and the safety can be guaranteed. After the blocking is finished, the blocking device needs to be deflated, and the plunger 22 is manually screwed out at the moment, so that the operation is simple and convenient.

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. The utility model provides a peritoneoscope inflatable porta hepatis blocker, its characterized in that, includes interconnect's first sleeve (1), second sleeve (2), first sleeve (1) one end is pointed end (6), and the remaining part is hollow tube (11), be provided with first gasbag (3) on hollow tube (11), first gasbag (3) one side is provided with second gasbag (8) that are used for buffer air current, the position that lies in on hollow tube (11) between first gasbag (3), second gasbag (8) be provided with trepanning (9) of pointed end (6) adaptation, trepanning (9) and hollow tube (11) do not communicate, second sleeve (2) other end is connected and is used for inflatable sacculus (4).

2. The laparoscopic inflatable hepatic portal blocker according to claim 1, wherein the interior of the second balloon (8) is divided into a buffer region (82) and an air inlet region (83) by a partition layer (81), the buffer region (82) is communicated with the hollow tube (11), and a buffer structure is disposed inside the air inlet region (83).

3. The laparoscopic inflatable porta hepatis blocker according to claim 2, wherein said buffer structure comprises a large diameter port (12), a small diameter port (13) and a medium diameter port (14) in butt communication in sequence, and the relationship among the caliber b of the large diameter port (12), the caliber c of the medium diameter port (14) and the caliber a of the small diameter port (13) is b > c > a.

4. The laparoscopic inflatable porta hepatis blocker according to claim 3, wherein the middle diameter port (14) is truncated cone-shaped, one end with a larger bottom diameter is communicated with the hollow tube (11), the other end with a smaller bottom diameter is coaxially butted and communicated with the small diameter port (13), and the large diameter port (12) is fixed on the separation layer (81) and is communicated with the buffer area (82) through a through hole in the middle of the separation layer (81).

5. The laparoscopic inflatable hepatic portal block of claim 4, wherein the first sleeve (1) is internally provided with a connecting piece (10) at one end, the connecting piece (10) is internally provided with a tapered hole (101), the second sleeve (2) is provided with a plug (7) at one end which is matched with the connecting piece (10), and the plug (7) is inserted into the tapered hole (101) and is movably clamped with the tapered hole.

6. The laparoscopic inflatable porta hepatis blocker according to any one of claims 1 to 5, wherein the second cannula (2) is provided with an exhaust port (21) at one side, and a plunger (22) is hermetically and internally threaded to the exhaust port (21).

7. The laparoscopic inflatable porta hepatis blocker according to claim 6, wherein the second sleeve (2) is connected with the balloon (4) through an air delivery pipe (41), and a one-way valve I (5) is arranged near the connection position of the second sleeve (2) and the air delivery pipe (41).

8. The laparoscopic inflatable porta hepatis blocker according to claim 7, wherein the other side of the balloon (4) is provided with a second one-way valve (42).

9. The laparoscopic inflatable hepatic portal block of claim 8, wherein a barometer is installed on said gas delivery tube (41).