CN202078358U

CN202078358U - Separable portal vein blocker

Info

Publication number: CN202078358U
Application number: CN 201120114340
Authority: CN
Inventors: 刘辉; 张金旻; 邵雪晴; 刘亚莉; 周伟平
Original assignee: Second Military Medical University SMMU
Current assignee: Second Military Medical University SMMU
Priority date: 2011-04-18
Filing date: 2011-04-18
Publication date: 2011-12-21
Anticipated expiration: 2021-04-18

Abstract

The utility model relates to the technical field of medical instruments, in particular to a separable portal vein blocker which is used in the common open hepatectomy. The separable portal vein blocker comprises a pair of portal vein blocking forceps and a blocking forceps operator, wherein the pair of portal vein blocking forceps comprises a pair of forceps holder limbs (1), a limb connecting shaft (2) and a spring (3); the pair of forceps holder limbs (1) is crosswise connected; the opposite surfaces of front arms (1.1) of the pair of forceps holder limbs are provided with complementary transverse bar-shaped teeth; the blocking forceps operator comprise a pair of forceps arms (4) and a forceps arm connecting shaft (5), wherein the pair of forceps arms (4) is crosswise connected; the opposite surfaces of the head of a clamp forceps (4.1) are provided with lockholes (4.3) matched with lock catches (1.3) of the tail parts of the pair of portal vein blocking forceps for being connected with the pair of portal vein blocking forceps; and the tail parts of forceps handles (4.2) are provided with rings (4.4). In the separable portal vein blocker, because the pair of portal vein blocking forceps and the blocking forceps operator are separable and the rear arms of the pair of portal vein blocking forceps are short, few parts under the surgery are blocked, which is favorable for liver tumor or hepatic hemangioma exsection.

Description

Separable portal vein block device

Technical field

This utility model relates to technical field of medical instruments, is that a kind of routine that is used for is driven the separable portal vein block device that uses when abdomen carries out hepatectomy.

Background technology

Clinically, excision being adopted in the treatment of liver neoplasm is most effectual way.Conventional hepatotomy operation is by using various vascular forcepss, thereby the blood flow of blocking-up band blocking door vein etc. reaches and reduces hemorrhage purpose, the portal vein pipe wrench that uses in the traditional operation is by the pair of jaws limbs, the limbs connecting axle is formed, the pair of jaws limbs are by the cross-shaped connection of limbs connecting axle, with the limbs connecting axle is that boundary's clamp limbs are divided into forearm and postbrachium two parts, postbrachium is an operating grip, volume is big, the visual field that can block the patient influences patient's operation, therefore tend to cause the consequences such as time lengthening of hemorrhage or blocking blood flow, have a strong impact on the prognosis of surgical patient because of operate miss.

Summary of the invention

This utility model provides a kind of separable portal vein block device of conventional abdominal use simple in structure, easy to use, suitable according to pylic trend of liver and residing position.

This utility model is made up of portal vein blocking-up pincers and blocking-up pincers manipulator.Portal vein blocking-up pincers are by the pair of jaws limbs, limbs connecting axle and spring are formed, the pair of jaws limbs are by the cross-shaped connection of limbs connecting axle, with the limbs connecting axle is that boundary's clamp limbs are divided into forearm and postbrachium two parts, forearm is convexly curved, article two, the forward surface of forearm is provided with complementary horizontal bar shaped tooth, in case slippage during the clamping blood vessel, and can prevent to crush blood vessel, both ends of the spring is individually fixed on the forward surface of two postbrachiums, under not afterburning situation, the elastic force of spring struts postbrachium, is enough to make two forearms to clamp the mutual interlock of bar shaped tooth, when postbrachium is subjected to external force pressurization compression spring, article two, forearm unclamps and is forked, and the afterbody of postbrachium is provided with snap close, is used for being connected with blocking-up pincers manipulator.Blocking-up pincers manipulator is made up of a pair of tong arm and a tong arm connecting axle, a pair of tong arm is by the cross-shaped connection of tong arm connecting axle, with the tong arm connecting axle is that boundary's tong arm is divided into clamp and pincers handle two parts, the forward surface of clamp head is provided with the lockhole that the snap close with portal vein blocking-up pincers clamp limbs postbrachium afterbody is complementary, and is connected with hepatic vein blocking-up pincers being used for; The pincers handle is long than clamp, and afterbody is provided with finger ring, is used for the finger grip operation that undergos surgery.

During use, be locked in the snap close of portal vein blocking-up pincers clamp limbs postbrachium afterbody earlier by clamp head lockhole, portal vein blocking-up pincers and blocking-up pincers manipulator are combined into one, the postbrachium that makes clamp stress on portal vein blocking-up pincers clamp limbs with the pincers handle opens two forearms then, and target blood placed in it, unclamp blocking-up pincers manipulator, portal vein blocking-up pincers are separated with blocking-up pincers manipulator, the postbrachium of portal vein blocking-up pincers clamps two forearms under the effect of spring force, the portal vein pipe clamp is lived, thereby reach the purpose of blocking blood flow.

This utility model is simple in structure, and is easy to use, because portal vein blocking-up pincers can separate with blocking-up pincers manipulator, the postbrachium of portal vein blocking-up pincers is very short, therefore few to blocking of operative site, surgical field of view is clear, helps carrying out liver neoplasm or hepatic haemangioma excision.

Description of drawings

Fig. 1 faces structural representation for entire combination of the present utility model.

Fig. 2 is a portal vein blocking-up pincers side-looking structural representation of the present utility model.

Fig. 3 faces structural representation for portal vein blocking-up pincers of the present utility model.

Fig. 4 is a blocking-up pincers manipulator vertical section structure sketch map of the present utility model.

The specific embodiment

Now in conjunction with the accompanying drawings and embodiments, this utility model is described in detail.

This utility model is made up of portal vein blocking-up pincers and blocking-up pincers manipulator.Portal vein blocking-up pincers are by pair of jaws limbs 1, limbs connecting axle 2 and spring 3 are formed, pair of jaws limbs 1 are by the 2 cross-shaped connections of limbs connecting axle, with limbs connecting axle 2 is that boundary's clamp limbs 1 are divided into forearm 1.1 and postbrachium 1.2 two parts, forearm 1.1 is convexly curved, article two, the forward surface of forearm 1.1 is provided with complementary horizontal bar shaped tooth, in case slippage during the clamping blood vessel, and can prevent to crush blood vessel, spring 3 two ends are individually fixed on the forward surface of two postbrachiums 1.2, under not afterburning situation, the elastic force of spring 3 struts postbrachium 1.2, is enough to make two forearms 1.1 to clamp the mutual interlock of bar shaped tooth, when postbrachium 1.2 is subjected to external force pressurization compression spring 3, article two, forearm 1.1 unclamps and is forked, and the two sides of tail of postbrachium 1.2 is provided with snap close 1.3, is used for being connected with blocking-up pincers manipulator.Blocking-up pincers manipulator is made up of a pair of tong arm 4 and a tong arm connecting axle 5, a pair of tong arm 4 is by the 5 cross-shaped connections of tong arm connecting axle, with tong arm connecting axle 5 is that boundary's tong arm is divided into clamp 4.1 and pincers handle 4.2 two parts, the head forward surface of clamp 4.1 is provided with the lockhole 4.3 that the snap close 1.3 with hepatic vein blocking-up pincers clamp limbs postbrachium afterbody is complementary, and is connected with hepatic vein blocking-up pincers being used for; Pincers handle 4.2 is long than clamp 4.1, and afterbody is provided with finger ring 4.4, is used for the finger grip operation that undergos surgery.

1. 1 kinds of separable portal vein block devices of embodiment

The forearm 1.1 of the clamp limbs of portal vein blocking-up pincers 1 of the present utility model is convexly curved, thick 0.2cm, long 4cm, wide 0.5cm, radian 120 degree; The postbrachium 1.2 thick 0.4cm of clamp limbs 1, long 2cm, wide 0.5cm, forearm 1.1 is 120 degree angles with postbrachium 1.2, and the snap close 1.3 in the postbrachium 1.2 afterbodys outside is hemispherical projections, its diameter 0.3cm, long 3cm under spring 3 naturalness; The front end of the clamp 4.1 of blocking-up pincers manipulator is 160 degree inflection, be beneficial to clamping portal vein blocking-up pincers, lockhole 4.3 on its forward surface is hemispherical depression, lockhole 4.3 mates with the hemispherical snap close 1.3 in the portal vein blocking-up pincers postbrachium 1.2 afterbodys outside, pincers handle 4.2 rear ends of the tong arm 4 of blocking-up pincers manipulator are 160 degree inflection, pincers handle 4.2 is than one times of clamp 4.1 length, and the internal diameter of finger ring 4.4 is 3cm.

This utility model can be made different specifications and models as required.

Claims

1. separable portal vein block device, it is characterized in that forming by portal vein blocking-up pincers and blocking-up pincers manipulator, portal vein blocking-up pincers are by pair of jaws limbs (1), limbs connecting axle (2) and spring (3) are formed, pair of jaws limbs (1) are by the cross-shaped connection of limbs connecting axle (2), with limbs connecting axle (2) is that boundary's clamp limbs are divided into forearm (1.1) and postbrachium (1.2) two parts, forearm (1.1) is convexly curved, article two, the forward surface of forearm (1.1) is provided with complementary horizontal bar shaped tooth, spring (3) two ends are individually fixed on the forward surface of two postbrachiums (1.2), under not afterburning situation, the elastic force of spring (3) struts postbrachium (1.2), be enough to make two forearms (1.1) to clamp, the mutual interlock of bar shaped tooth, when external force during to postbrachium (1.2) pressurization compression spring (3), article two, forearm (1.1) unclamps and is forked, and the two sides of tail of postbrachium (1.2) is provided with snap close (1.3), is used for being connected with blocking-up pincers manipulator; Blocking-up pincers manipulator is made up of an a pair of tong arm (4) and a tong arm connecting axle (5), a pair of tong arm (4) is by the cross-shaped connection of tong arm connecting axle (5), with tong arm connecting axle (5) is that boundary's tong arm is divided into clamp (4.1) and pincers handle (4.2) two parts, the head forward surface of clamp (4.1) is provided with the lockhole (4.3) that the snap close (1.3) with portal vein blocking-up pincers clamp limbs postbrachium afterbody is complementary, and is used for being connected with portal vein blocking-up pincers; Pincers handles (4.2) are long than clamp (4.1), and afterbody is provided with finger ring (4.4).