CN215739204U - Hepatic portal blocking device - Google Patents

Abstract

The utility model discloses a hepatic portal blocking device, which comprises a pressing part, a rotating rod and a cannula. A first groove is formed in the side face of the pressing piece, a second groove is formed in the lower end of the pressing piece, and the first groove is communicated with the second groove; the rotating rod is rotatably arranged in the first groove, a blocking rope is fixedly connected to the rotating rod, and the rotating rod can wind the blocking rope through rotation; the insertion tube is connected with the pressing piece, the upper end of the insertion tube is communicated with the second groove, and the blocking rope extends out of the lower end of the insertion tube; the outer wall of the insertion pipe is provided with an anti-disengaging hook, one end, far away from the rotating rod, of the blocking rope is provided with a connecting piece, and the anti-disengaging hook can be hooked with the connecting piece. The technical scheme of the utility model can reduce the blood supply of the liver to reduce the amount of bleeding of the liver in the operation, thereby reducing the operation risk in the operation and the occurrence probability of postoperative liver failure.

Description

Hepatic portal blocking device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a hepatic portal blocking device.

Background

The laparoscopic surgery is a surgery performed by inserting a laparoscopic lens into the abdominal cavity of a human body and using laparoscopic instruments. Laparoscopic surgery is increasingly applied to various fields of surgery due to advantages of minimal invasion, small scars, small pain and the like, wherein laparoscopic liver resection is also gradually an important way for treating benign and malignant diseases of the liver. However, the blood supply to the liver is very abundant and intraoperative bleeding is a great problem preventing laparoscopic liver resection. To reduce liver bleeding and minimize the risk of intraoperative surgery and the incidence of postoperative hepatic failure, a medical device for assisting hepatic portal block is urgently needed to reduce the blood supply to the liver and reduce the amount of bleeding of the liver during surgery.

SUMMERY OF THE UTILITY MODEL

The main purpose of the present invention is to provide a hepatic portal block device, which aims to reduce the blood supply of the liver to reduce the amount of bleeding of the liver during operation, thereby reducing the risk of operation and the occurrence probability of postoperative liver failure.

In order to achieve the above object, the present invention provides a portal blocking device, which includes a pressing member, a rotating rod and a cannula. A first groove is formed in the side face of the pressing piece, a second groove is formed in the lower end of the pressing piece, and the first groove is communicated with the second groove; the rotating rod is rotatably arranged in the first groove, a blocking rope is fixedly connected to the rotating rod, and the rotating rod can wind the blocking rope through rotation; the insertion tube is connected with the pressing piece, the upper end of the insertion tube is communicated with the second groove, and the blocking rope extends out of the lower end of the insertion tube; the outer wall of the insertion pipe is provided with an anti-disengaging hook, one end, far away from the rotating rod, of the blocking rope is provided with a connecting piece, and the anti-disengaging hook can be hooked with the connecting piece.

Optionally, an annular rack is arranged at a notch of the first groove, and the rotating rod is provided with a gear; wherein at least one of the annular rack and the gear has elasticity, so that the annular rack is rotationally adjustable relative to the gear.

Optionally, the press member is gradually reduced in diameter toward the cannula.

Optionally, the cannula comprises a first part connected with the pressing part and a second part extending outwards from the tail end of the first part, and a through hole is arranged in the cannula; wherein the second part is arranged in a circular arc shape.

Optionally, the through hole is located in the diameter of the second component part, gradually decreasing from the end of the first component towards the end of the second component.

Optionally, an accommodating groove is formed in the arc-shaped inner side wall of the second part, and the anti-disengaging hook is arranged in the accommodating groove.

Optionally, one end of the blocking rope close to the connecting piece is provided with a blocking piece; the diameter of the stopper is greater than the diameter of the through bore of the second component end.

Optionally, the porta hepatis blocker further comprises a timer fixedly mounted on the pressing member.

According to the technical scheme, one end of the blocking rope is fixedly connected to the rotary rod, the other end of the blocking rope is provided with a connecting piece, and the outer wall of the insertion pipe is provided with an anti-disengaging hook, so that the anti-disengaging hook can be hooked with the connecting piece. The rotating rod is arranged on the pressing piece, the pressing piece is connected with the insertion tube, and the blocking rope is movably arranged in the insertion tube and extends out from the lower end of the insertion tube. After the blocking rope is wound on the blood vessel to be blocked, the connecting piece at the tail end of the blocking rope is hooked with the anti-drop hook, so that the tail end of the blocking rope is fixed and is not easy to drop. At this time, the blocking string completely surrounds the blood vessel to be blocked, and the blood flow in the blood vessel is blocked by tightening or loosening the blocking string by rotating the rotating lever. The hepatic portal blocking device solves the problem that the liver is easy to bleed in the liver operation process, and reduces the operation risk in the operation and the occurrence probability of liver failure after the operation to the maximum extent.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic diagram of a structure of an embodiment of a porta-hepatis blocker of the present invention;

FIG. 2 is a schematic view of the hepatic portal block of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the structure of the porta hepatis blocker of FIG. 1 from another perspective;

FIG. 4 is an enlarged view taken at A in FIG. 1;

FIG. 5 is an enlarged view at B of FIG. 1;

FIG. 6 is a cross-sectional view taken along line I-I of FIG. 1;

FIG. 7 is an enlarged view at C of FIG. 6;

fig. 8 is a schematic structural diagram of another embodiment in fig. 6.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Pressing piece	231	Round hole
110	The first groove	240	Position limiting piece
				111	Annular rack	300	Cannula
120	Second groove	310	First part
				200	Rotary rod	320	Second part
210	Blocking rope	321	Containing groove
				211	Connecting piece	3211	Anti-drop hook
212	Blocking member	330	Through hole
				220	Gear wheel	400	Time-meter
230	Elastic piece	500	Blood vessel

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

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.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an embodiment of a hepatic portal block device, which is mainly applied to reducing the bleeding volume of the liver in surgery by blocking the blood flow in the blood vessel of the liver by using the hepatic portal block device.

Referring to fig. 1, in one embodiment of the present invention, the porta hepatis blocker includes a pressing member 100, a rotating rod 200 and a cannula 300. A first groove 110 is arranged on the side surface of the pressing element 100, a second groove 120 is arranged at the lower end of the pressing element 100, and the first groove 110 is communicated with the second groove 120; the rotary rod 200 is rotatably installed in the first groove 110, the blocking rope 210 is fixedly connected to the rotary rod 200, and the blocking rope 210 can be wound by the rotary rod 200 through rotation; the insertion tube 300 is connected with the pressing element 100, the upper end of the insertion tube 300 is communicated with the second groove 120, and the blocking rope 210 extends out from the lower end of the insertion tube 300; the outer wall of the insertion tube 300 is provided with a separation-preventing hook 3211, one end of the blocking rope 210 far away from the rotating rod 200 is provided with a connecting piece 211, and the separation-preventing hook 3211 can be hooked with the connecting piece 211.

Specifically, the rotary rod 200 is installed in the first recess 110 and can rotate in a clockwise direction or a counterclockwise direction. When the rotating lever 200 is rotated in the clockwise direction to tighten the blocking cord 210, the rotating lever 200 is rotated in the counterclockwise direction to loosen the blocking cord 210, and vice versa. The upper end of cannula 300 communicates with second recess 120, blocks that rope 210 is mobilizable to be set up inside cannula 300, has avoided blocking rope 210 and has received the pollution because of being in external environment for a long time, blocks that rope 210 sets up inside cannula 300 simultaneously and has also further made things convenient for the use in the operation. The mousing-hook 3211 of intubate 300 outer wall is the triangle-shaped design, after blocking rope 210 twines the blood vessel that waits to block, can be located the terminal connecting piece 211 and the mousing-hook 3211 hookup of rope 210 that blocks, and this mousing-hook 3211's inboard is provided with a plurality of sunken positions for connecting piece 211 is difficult for coming off from mousing-hook 3211, has further strengthened the steadiness when being connected between connecting piece 211 and the mousing-hook 3211, has also further improved the efficiency of blocking simultaneously.

According to the technical scheme of the utility model, one end of the blocking rope 210 is fixedly connected to the rotary rod 200, the other end of the blocking rope 210 is provided with a connecting piece 211, and the outer wall of the insertion tube 300 is provided with an anti-disengaging hook, so that the anti-disengaging hook 3211 can be hooked with the connecting piece 211. Wherein, the rotary rod 200 is arranged on the pressing element 100, the pressing element 100 is connected with the cannula 300, and the blocking rope 210 is movably arranged inside the cannula and extends out from the lower end of the cannula 300. After the blocking string 210 is wound around a blood vessel to be blocked, the connecting member 211 at the end of the blocking string 210 is hooked with the anti-slip hook 3211, so that the end of the blocking string 210 is also fixed and is not easily separated. At this time, the blocking string 210 completely surrounds the blood vessel to be blocked, and the blocking string 210 is tightened or loosened by rotating the rotating lever 200, thereby completing the surgical blocking operation. The hepatic portal blocking device solves the problem that the liver is easy to bleed in the liver operation process, and reduces the operation risk in the operation and the occurrence probability of liver failure after the operation to the maximum extent.

Referring to fig. 1, 6 and 7, in an embodiment, a circular rack 111 is disposed at the notch of the first groove 110, and the rotary rod 200 is provided with a gear 220; at least one of the annular rack 111 and the gear 220 has elasticity, so that the annular rack 111 can rotate and be adjusted relative to the gear 220.

Specifically, the annular rack 111 is fixedly disposed at the notch of the first groove 110 without position change. In the present embodiment, the annular rack 111 is provided to have elasticity, and the material of the annular rack may be provided to be a plastic material, so that the annular rack 111 may be deformed when the gear 220 rotates, and the gear 220 may be displaced relative to the annular rack 111. An elastic member 230 is disposed below the gear 220, a lower surface of the gear 220 contacts the elastic member 230, and both ends of the gear 220 are limited by a limiting member 240, so that the gear 220 does not protrude beyond the surface of the rotating rod 200 due to the elastic force applied thereto by the elastic member 230. When the gear 220 rotates relative to the annular rack 111, the annular rack 111 deforms, the gear 220 moves to the position of the elastic member 230 due to the extrusion force of the annular rack 111, and after the gear 220 rotates by a distance between the annular racks 111, the gear 220 moves back to the previous position due to the elastic force of the elastic member 230, so that the gear 220 and the annular rack 111 can rotate relative to each other.

Referring to fig. 8, in another embodiment, the difference from the previous embodiment is that a plurality of circular holes 231 are formed in the elastic member 230, when the gear 220 rotates relative to the annular rack 111, the annular rack 111 deforms, and at the same time, the gear 220 moves to the position of the elastic member 230 due to the pressing force of the annular rack 111, the elastic member 230 deforms, the circular holes 231 formed in the elastic member 230 contract, and after rotating by a distance between the annular racks 111, the circular holes 231 of the elastic member 230 return to the previous state, and at this time, the gear 220 rotates by a space between teeth relative to the annular rack 111.

Referring to fig. 1 and 2, in one embodiment, the pressing element 100 has a diameter gradually decreasing toward the cannula 300. Specifically, the diameter of the upper surface of the pressing member 100 is larger than that of the lower surface, when the anus blocker is inserted into the body of a patient, the side wall of the pressing member 100 can be pressed against the surface of the skin of the patient, so that the insertion tube 300 cannot move into the body of the patient under the condition of losing the hand of the medical staff, the hands of the medical staff are liberated, the medical staff can perform other operations of the laparoscopic surgery after the completion of the hepatic portal blocking, and the use of manpower resources is reduced.

It is worth mentioning that the cannula 300 comprises a first part 310 connected to the press element 100 and a second part 320 extending outwardly from the end of the first part 310; wherein the second member 320 is disposed in a circular arc shape. Specifically, the first member 310 is provided in a straight cylindrical shape, and the second member 320 communicates with the first member 310 and is provided in a circular arc shape. When the cannula 300 is integrally inserted into the body of a patient, after the blocking rope 210 is wound around the blood vessel 500, the connecting piece 211 at the tail end of the blocking rope 210 is fixedly hooked with the anti-release hook 3211, at this time, the blood vessel 500 is wound around the arc-shaped inner side wall of the second component 320 by the blocking rope 210, and is specifically positioned between the tail end of the second component 320 and the anti-release hook 3211, the arc-shaped inner side wall of the second component 320 can play a good role in protecting the blocked blood vessel 500, and is also beneficial to stably blocking the blood vessel 500, so that the liver cannot easily bleed in the operation process.

Referring to fig. 1 and 2, in one embodiment, the through-hole 330 is located at a portion of the second member 320 having a diameter that gradually decreases from the end of the first member 310 toward the end of the second member 320. Specifically, the diameter of the through hole 330 formed in the second member 320 is reduced, the second member 320 is also reduced in its entirety from the end of the first member 310 toward the end of the second member 320, and the volume of the second member 320 is reduced compared to the first member 310. When this hepatic portal block device inserted the patient internal, further reduced this hepatic portal block device and be in the internal partial volume that occupies of patient, and can make medical personnel have a better field of vision, make things convenient for medical personnel to the internal blood vessel 500 location of patient, further improve medical personnel's work efficiency.

Referring to fig. 3, further, the arc-shaped inner sidewall of the second member 320 is provided with a receiving groove 321, and the anti-disengaging hook 3211 is disposed in the receiving groove 321. Specifically, the anti-slip hook 3211 is disposed in the receiving groove 321, so that the anti-slip hook 3211 does not protrude from the outer surface of the second component 320, and the liver tissue of the patient is prevented from being damaged by the anti-slip hook 3211 protruding from the outer surface of the second component 320 when the medical staff performs an operation on the patient.

Referring to fig. 5, it is considered that when the rotation rod 200 tightens the blocking string 210, the blocking string 210 outside the through hole 330 of the insertion tube 300 is completely retracted into the insertion tube 300, the diameter of the through hole 330 at the end of the insertion tube 300 is smaller, the blocking string 210 is made of soft material, and the blocking string 210 is not easily protruded from the insertion tube 300 again, so that the portal block device cannot function. In view of this, to solve this problem, a blocking member 212 may be optionally provided at an end of the blocking cord 210 near the connecting member 211; the diameter of the occluding component 212 is larger than the diameter of the through hole 330 at the end of the second member 320 to prevent the occluding string 210 from being fully retracted inside the cannula 300.

Referring to fig. 1 and 3, in one embodiment, the porta hepatis blocker further includes a timer 400, and the timer 400 is fixedly mounted on the pressing member 100. Specifically, the timer 400 may be fixedly mounted on the upper surface of the pressing member 100; alternatively, the timer 400 may be fixedly installed at a side of the pressing member 100. The timer 400 can be used to record the specific time that the hepatic portal blocking device passes when blocking the blood vessels of the patient, to prevent the occurrence probability of postoperative liver failure from increasing due to too long a time for blocking the blood vessels 500, or the timer 400 is used to record the specific duration of the laparoscopic liver resection operation.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. A portal block device, comprising:

the pressing piece is provided with a first groove on the side face, a second groove is arranged at the lower end of the pressing piece, and the first groove is communicated with the second groove;

the rotating rod is rotatably arranged in the first groove, a blocking rope is fixedly connected to the rotating rod, and the blocking rope can be wound by rotating the rotating rod; and

the insertion tube is connected with the pressing piece, the upper end of the insertion tube is communicated with the second groove, and the blocking rope extends out of the lower end of the insertion tube; the outer wall of the insertion pipe is provided with an anti-disengaging hook, one end, far away from the rotating rod, of the blocking rope is provided with a connecting piece, and the anti-disengaging hook can be hooked with the connecting piece.

2. The porta hepatis blocker of claim 1, wherein an annular rack is provided at the notch of the first groove, and the rotary rod is provided with a gear; wherein at least one of the annular rack and the gear has elasticity, so that the annular rack is rotationally adjustable relative to the gear.

3. The portal block of claim 1, wherein the pressing member has a diameter that gradually decreases toward the cannula.

4. The portal block of claim 1, wherein the cannula includes a first member connected to the compression member and a second member extending outwardly from a distal end of the first member, the cannula having a through-hole disposed therein; wherein the second part is arranged in a circular arc shape.

5. The porta hepatis blocker of claim 4, wherein the through hole is located at a diameter of the second member portion that gradually decreases from the end of the first member toward the end of the second member.

6. The porta hepatis blocker of claim 5, wherein the arcuate inner side wall of the second member is provided with a receiving groove, and the anti-drop hook is disposed in the receiving groove.

7. The hepatic portal occlusion device of claim 6, wherein an end of the occlusion cord adjacent to the connector is provided with an occlusion member; the diameter of the stopper is greater than the diameter of the through bore of the second component end.

8. The porta hepatis blocker according to any one of claims 1 to 7, further comprising a timer fixedly mounted on the pressing member.

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