CN202078353U

CN202078353U - Separable hepatic vein blocking device

Info

Publication number: CN202078353U
Application number: CN2011201137501U
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 and provides a separable hepatic vein blocking device used when hepatectomy is performed during a conventional laparotomy. The separable hepatic vein blocking device comprises a pair of hepatic vein blocking forceps and a blocking forceps controller; the pair of hepatic vein blocking forceps comprises a pair of forceps limbs (1), a limb connecting shaft (2) and a spring (3); the forceps limbs are connected in an X-shaped manner; transverse strip-shaped teeth which are complementary are arranged on opposite faces of two front arms (1.1); the blocking forceps controller comprises a pair of forceps arms (4) and a forceps arm connecting shaft (5); the forceps arms (4) are connected in an X-shaped manner; lock holes (4.3) matched with lock catches (1.3) at the tail parts of the hepatic vein blocking forceps are formed on opposite faces of the head parts of clamps (4.3) and are used for being spliced with the hepatic vein blocking forceps; and rings (4.4) are arranged at the tail parts of forceps handles (4.2). In the utility model, the hepatic vein blocking forceps and the blocking forceps controller can be separated, and the rear arms of the hepatic vein blocking forceps are very short, so that a small part of a surgical site is obscured, and resection of liver tumour or patic hemangioma can be performed advantageously.

Description

Separable hepatic 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 hepatic 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.Thereby conventional hepatotomy operation reaches by the blood flow that uses various vascular forcepss, blocking-up band blocking-up hepatic vein etc. and reduces hemorrhage purpose.The hepatic vein vascular forceps of using in the traditional operation is made up of pair of jaws limbs, limbs connecting axle, 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 tends to cause because of operate miss the consequences such as time lengthening of hemorrhage or blocking blood flow, has a strong impact on the prognosis of surgical patient.

Summary of the invention

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

This utility model is made up of hepatic vein blocking-up pincers and blocking-up pincers manipulator.Hepatic 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 hook solid, 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 hepatic 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 hepatic vein blocking-up pincers clamp limbs postbrachium afterbody earlier by clamp head lockhole, hepatic vein blocking-up pincers and blocking-up pincers manipulator are combined into one, the postbrachium that makes clamp stress on hepatic 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, hepatic vein blocking-up pincers are separated with blocking-up pincers manipulator, the postbrachium of hepatic vein blocking-up pincers clamps two forearms under the effect of spring force, the hepatic vein blood vessel is clamped, thereby reached the purpose of blocking blood flow.

This utility model is simple in structure, and is easy to use, because hepatic vein blocking-up pincers can separate with blocking-up pincers manipulator, the postbrachium of hepatic 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 hepatic vein blocking-up pincers side-looking structural representation of the present utility model.

Fig. 3 faces structural representation for hepatic 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 hepatic vein blocking-up pincers and blocking-up pincers manipulator.Hepatic 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 hook solid, 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 external force during to postbrachium 1.2 pressurization compression springs 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.

Embodiment 1. separable hepatic vein block devices

The forearm 1.1 of the clamp limbs of hepatic vein blocking-up pincers 1 of the present utility model is hook solid, the long 10cm of forearm 1.1 crotches of clamp limbs, thick 0.2cm, wide 1.5cm; The postbrachium 1.2 thick 0.4cm of clamp limbs 1, long 4cm, wide 4.5cm, 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 4cm 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 hepatic 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 hepatic 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 hepatic vein block device, it is characterized in that forming by hepatic vein blocking-up pincers and blocking-up pincers manipulator, hepatic 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 hook solid, 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 hepatic vein blocking-up pincers clamp limbs postbrachium afterbody is complementary, and is used for being connected with hepatic vein blocking-up pincers; Pincers handles (4.2) are long than clamp (4.1), and afterbody is provided with finger ring (4.4).