CN221383668U - A liver portal blocker - Google Patents

Abstract

The utility model discloses a hepatic portal blocking device which comprises an inner handle rod, a telescopic rod and an outer sleeve which are arranged in a sliding manner from inside to outside in sequence, wherein one end of the inner handle rod is detachably connected with one end of a rubber blocking pipe, an inner supporting plug is detachably arranged in the other end of the rubber blocking pipe, an inserting hole for penetrating the rubber blocking pipe and approaching to one end of the inner supporting plug is formed in the rubber blocking pipe, a flexible supporting rod piece for supporting the rubber blocking pipe is arranged in the rubber blocking pipe, a bending operation pull rope structure for bending and driving the rubber blocking pipe is arranged in the inner handle rod, the head end of the rubber blocking pipe is rigidly supported through the inner supporting plug, and the flexible supporting rod piece can integrally provide rigid support for the rubber blocking pipe under the condition that the rubber blocking pipe can be bent, so that the rubber blocking pipe can conveniently penetrate through gaps around hepatic portal tissues.

Description

A liver portal blocker

Technical Field

The utility model relates to the technical field of medical treatment, in particular to a hepatic portal blocker.

Background technique

When performing liver surgery or other abdominal surgery, the portal vein blocking operation is often involved. Since there are a large number of blood vessels flowing into and out of the liver tissue, it is crucial to control the continued blood supply of these blood vessels and prevent venous blood from flowing back during liver resection. The traditional method of blocking the portal vein is to use a soft belt or wire binding to block the blood flow, thereby achieving temporary hemostasis of the liver without affecting the surgical field of view or hindering the surgical operation.

The portal occluder with application number 201120502342.5 includes a hinged clamping rod I and a clamping rod II, one end of the clamping rod I and the clamping rod II form an arc-shaped vascular clamping part, and the inner arcs of the vascular clamping part are opposite, and an elastic pull rope is arranged at the other end of the clamping rod I and the clamping rod II to clamp the vascular clamping parts together.

When tying the soft band or thread on the hilum of the liver, it needs to pass through the gap in the tissue around the hilum of the liver. However, since the soft band or thread is relatively soft, it is relatively separated when passing through the gap, just like threading a needle, and the medical staff needs to hold the surgical forceps for a long time to operate.

Utility Model Content

The purpose of the utility model is to provide a liver portal blocker to solve the above problems and overcome the defects of the prior art.

In order to achieve the above purpose, the utility model provides the following technical solutions:

The utility model provides a portal obstructor, comprising an inner handle rod, a telescopic rod and an outer sleeve which are slidably arranged in sequence from the inside to the outside, one end of the inner handle rod is detachably connected to one end of a rubber blocking tube, the other end of the rubber blocking tube is detachably provided with an inner support plug, the rubber blocking tube is provided with a jack for passing through one end thereof close to the inner support plug, a flexible support rod for supporting the rubber blocking tube is arranged inside the rubber handle rod, and a bending control pull rope structure for driving the rubber blocking tube to bend is arranged inside the inner handle rod.

Preferably, the curved operating pull rope structure includes a rope threading channel which passes through the inner handle rod, a pull rope is arranged inside the rope threading channel, one end of the pull rope is connected to the operating rod, the other end of the pull rope is fixedly connected to the inner support plug, the pull rope is arranged close to the inner wall of the rubber blocking tube, the operating rod is slidably arranged in the rope threading channel, one end of the operating rod passes through the rope threading channel and is fixedly connected to the third gripping handle end.

Preferably, one end of the inner handle rod away from the rubber blocking tube is fixedly connected to a second gripping handle end, and the other end of the inner handle rod is connected to a pipe joint that cooperates with the rubber blocking tube.

Preferably, a first gripping handle end is fixedly provided on the outer side of one end of the telescopic rod for abutting and limiting the end of the outer sleeve.

Preferably, the flexible support rod is a spring, and one end of the spring is fixedly connected to the inner support plug.

Preferably, one end of the rubber blocking tube away from the outer sleeve is formed in a hemispherical shape.

Preferably, the inner profile of the insertion hole is a flat oval.

The beneficial effects are:

1. The head end of the rubber blocking tube is rigidly supported by the inner support plug, and the flexible support rod can provide rigid support for the entire rubber blocking tube while ensuring that the rubber blocking tube can be bent, thereby facilitating the rubber blocking tube to pass through the gap around the liver hilum tissue;

2. The bending control rope structure can realize the bending of the rubber blocking tube head end at a certain angle, which is convenient for insertion from the tissue gap around the liver portal;

3. The bending operation rope structure can also facilitate the inner support plug and the flexible support rod to be pulled out and removed from the rubber blocking tube without affecting the head end of the rubber blocking tube passing through the jack for blocking and binding.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

Fig. 1 is a front view of the utility model;

Fig. 2 is a cross-sectional view taken along line A-A of Fig. 1 of the present invention;

FIG3 is a partial enlarged view of point B of FIG2 of the present utility model;

FIG4 is a partial enlarged view of point C of FIG2 of the present utility model;

FIG5 is a partial enlarged view of D in FIG2 of the present utility model;

FIG6 is a three-dimensional structural diagram of FIG1 of the present utility model;

FIG. 7 is a schematic diagram of the rubber blocking tube of the present invention retracted into the outer sleeve.

The reference numerals in the accompanying drawings are explained as follows: 1. outer sleeve; 2. telescopic rod; 2a. first gripping handle end; 3. inner handle rod; 3a. second gripping handle end; 3b. pipe joint; 4. rubber blocking tube; 4a. socket; 5. inner support plug; 6. curved operating pull rope structure; 6a. third gripping handle end; 6b. rope threading channel; 6c. pull rope; 6d. operating rod; 7. flexible support rod.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Referring to Figures 1 to 7, the utility model provides a portal vein blocker, comprising an inner handle rod 3, a telescopic rod 2 and an outer sleeve 1 which are slidably arranged in sequence from the inside to the outside, one end of the inner handle rod 3 is detachably connected to one end of a rubber blocking tube 4, the other end of the rubber blocking tube 4 is detachably provided with an inner support plug 5, and the end of the rubber blocking tube 4 away from the outer sleeve 1 is formed in a hemispherical shape. In order to make the rubber blocking tube 4 more labor-saving when inserting and avoid damaging the patient's body tissue, the rubber blocking tube 4 is provided with a hole 4a for passing through the end thereof close to the inner support plug 5. Furthermore, the inner side contour of the hole 4a is a flat ellipse, which is convenient for the end of the rubber blocking tube 4 to pass through the hole 4a. The flat ellipse-shaped hole 4a can greatly increase the friction force on the rubber blocking tube 4, thereby avoiding the rubber blocking tube 4 from slipping out of the hole 4a. A flexible support rod 7 for supporting the rubber blocking tube 4 is provided in the rubber blocking tube 4. Specifically, the flexible support rod 7 adopts a spring, one end of which is fixedly connected to the inner support plug 5, and a bending control pull rope structure 6 for driving the rubber blocking tube 4 to bend is provided in the inner handle rod 3.

As shown in Figures 3, 4 and 5 of the specification, this embodiment proposes a specific bending control pull rope structure 6, which includes a rope threading channel 6b that runs through the inner handle rod 3, a pull rope 6c is arranged inside the rope threading channel 6b, one end of the pull rope 6c is connected to a control rod 6d, the other end of the pull rope 6c is fixedly connected to the inner support plug 5, the pull rope 6c is arranged close to the inner side wall of the rubber blocking tube 4, the control rod 6d is slidably arranged in the rope threading channel 6b, one end of the control rod 6d passes through the rope threading channel 6b and is fixedly connected to the third grip handle end 6a. The bending control pull rope structure 6 can realize the bending of the head end of the rubber blocking tube 4 at a certain angle, which is convenient for insertion from the tissue gap around the liver port.

One end of the inner handle rod 3 away from the rubber blocking tube 4 is fixedly connected to a second gripping handle end 3 a , and the other end of the inner handle rod 3 is connected to a pipe joint 3 b that cooperates with the rubber blocking tube 4 .

A first gripping handle end 2a is fixedly disposed on the outer side of one end of the telescopic rod 2 and is used for abutting and limiting the end of the outer sleeve 1.

working principle:

When in use, when the portal blocker is inserted from outside the body to the portal position of the patient, as shown in Figure 7 of the specification, the rubber blocking tube 4 is retracted into the outer sleeve 1 by sliding the telescopic rod 2 in the outer sleeve 1, which facilitates the insertion of the portal blocker. After insertion, the telescopic rod 2 and the outer sleeve 1 are telescopically adjusted again so that the telescopic rod 2 is retracted into the outer sleeve 1. At this time, the rubber blocking tube 4 extends out of the outer sleeve 1, and the end of the rubber blocking tube 4 with the inner support plug 5 is passed through the gap of the portal tissue. When passing through, the inner support plug 5 can be bent and operated by the pull rope structure 6 to be inserted into the rubber The blocking tube 4 is pulled to achieve bending of the head end of the rubber blocking tube 4 at a certain angle, which facilitates the insertion of the head end of the rubber blocking tube 4. After the end of the rubber blocking tube 4 with the inner support plug 5 is passed through the gap in the liver portal tissue, the pull rope structure 6 is bent and operated to pull the inner support plug 5 and the flexible support rod 7 out of the rubber blocking tube 4 and remove them. Then, the personnel use surgical forceps or endoscopic forceps to clamp the head end of the rubber blocking tube 4, so that its head end passes through the socket 4a, and the liver portal is tied and tightened to achieve blocking, and finally the rubber blocking tube 4 is separated from the inner handle rod 3.

The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims (7)

1. A portal obstructor, characterized in that it comprises an inner handle rod (3), a telescopic rod (2) and an outer sleeve (1) which are slidably sleeved in sequence from the inside to the outside, one end of the inner handle rod (3) is detachably connected to one end of a rubber blocking tube (4), the other end of the rubber blocking tube (4) is detachably provided with an inner support plug (5), the rubber blocking tube (4) is provided with a jack (4a) for passing through one end thereof close to the inner support plug (5), a flexible support rod (7) for supporting the rubber blocking tube (4) is provided inside the inner handle rod (3), and a bending control pull rope structure (6) for driving the rubber blocking tube (4) to bend is provided inside the inner handle rod (3). 2. A portal obstructor according to claim 1, characterized in that: the curved operating pull rope structure (6) includes a rope threading hole (6b) penetrating through the inner handle rod (3), a pull rope (6c) is arranged inside the rope threading hole (6b), one end of the pull rope (6c) is connected to an operating rod (6d), the other end of the pull rope (6c) and the inner support plug (5) are fixedly connected to each other, the pull rope (6c) is arranged close to the inner wall of the rubber blocking tube (4), the operating rod (6d) is slidably arranged in the rope threading hole (6b), one end of the operating rod (6d) passes through the rope threading hole (6b) and is fixedly connected to the third gripping handle end (6a). 3. A portal obstructor according to claim 1, characterized in that one end of the inner handle rod (3) away from the rubber blocking tube (4) is fixedly connected to a second gripping handle end (3a), and the other end of the inner handle rod (3) is connected to a pipe joint (3b) that cooperates with the rubber blocking tube (4). 4. A portal obstructor according to claim 1, characterized in that: a first gripping handle end (2a) for abutting and limiting the end of the outer sleeve (1) is fixedly provided on the outer side of one end of the telescopic rod (2). 5. A portal obstructor according to claim 1, characterized in that the flexible support rod (7) is a spring, one end of which is fixedly connected to the inner support plug (5). 6. A portal obstructor according to claim 1, characterized in that the end of the rubber obstructing tube (4) away from the outer sleeve (1) is formed in a hemispherical shape. 7. A portal obstructor according to claim 1, characterized in that the inner contour of the insertion hole (4a) is a flat oval.