CN214318074U - Blood vessel ligation device - Google Patents

Abstract

The utility model provides a pair of blood vessel ligation device, including the locking module, be equipped with in the locking module and be used for holding vascular hollow region, be equipped with the locking device who is used for the ligature blood vessel in the hollow region, locking device is removable, is equipped with one on the locking module and can opens or closed breach, and the blood vessel can get into in the hollow region through the breach. The blood vessel ligation device has the characteristics of rapidness, stability and safety; the locking device is a disposable consumable, has small size and saves materials, the used materials are non-absorbable biological materials which can be implanted into human bodies, the imaging of later-stage imaging examination is not interfered, and the blood vessels with different lumen diameters have corresponding sizes for use.

Description

Blood vessel ligation device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a blood vessel ligation device.

Background

Many small blood vessels are generally encountered in surgical operations and need to be ligated for hemostasis, and particularly in some tumor operations, the blood vessels are too many, and the ligation of the blood vessels has many meanings: firstly, the bleeding in the operation is reduced, and the life safety of the operation patient is ensured; secondly, the visual field of the operation is clear, the smooth operation is facilitated, and the operation time is shortened; thirdly, the postoperative bleeding is reduced, and the wound recovery is facilitated.

However, the ligation hemostasis is difficult to be carried out on the dense small blood vessels at some parts, for example, in the tumor resection operation, the tumor nourishing blood vessels are rich, and the ligation of the tumor nourishing blood vessels brings great trouble to the operation. Sometimes because the vessels are dense, creating leaks that make bleeding difficult to control. Sometimes because the blood vessels are located deep or on the back of the tumor, they tear when they are detached or ligated, resulting in new bleeding. These conditions all aggravate bleeding, prolong the time of the operation and are not good for the recovery of the patient.

At present, the clinical hemostasis methods include the following methods: first, electrocoagulation hemostasis, which is a relatively common hemostasis method, is only feasible for tiny blood vessels, and is unsafe for electrocoagulation hemostasis for blood vessels with a diameter of more than 1mm, because blood vessels with a diameter of more than 1mm are prone to rebleeding due to the shedding of electrocoagulation plaque. Second, the suture ligature is hemostatic, this is the most traditional hemostasis mode, it is more firm after the ligature, it is effectual to stanch, the expense is low, consequently this kind of hemostasis mode all is used widely in different grades of hospitals, however, this mode also has different art persons' gimmick inconsistent, the knot may loosen and take off, operation time-consuming grade shortcoming, in addition when some vascular ligatures that are located the narrow space in deep, manual operation space of knoing is narrow and small, the one hand is deepened deeply to tie a knot and is torn the blood vessel easily and cause more serious hemorrhage, lead to hemostasis failure, seriously influence the operation process, simultaneously in the art, the easy hemorrhage of postoperative. Thirdly, in the field of minimally invasive surgery, such as laparoscopy and thoracoscope surgery, a titanium alloy vascular clamp is often used for blood vessel disjunction hemostasis, the hemostasis effect is good in the mode, but the defects that the operation cost is high, a metal foreign body cannot be absorbed by a body, imaging examination of imaging is hindered and the like exist, and in addition, a bulge formed after the vascular clamp clamps a blood vessel can occupy certain space of surrounding tissues to influence the activities of the tissues and visceral organs. There are also degradable vascular clamps on the market today that, while overcoming the interference with imaging examinations, cannot be used to maintain ligated vessels for long periods or permanently. Moreover, both metallic and absorbable vascular clamps risk loosening due to their vascular hemostasis based on the principle of V-shaped clipping, and uncontrolled bleeding can be life threatening to the patient once the clamp is loosened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a blood vessel ligation device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a blood vessel ligation device, including the locking module, be equipped with in the locking module and be used for holding vascular hollow region, be equipped with the locking device who is used for the ligation blood vessel in the hollow region, locking device is removable.

Furthermore, the locking module is provided with an openable or closable gap through which the blood vessel can enter the hollow area.

Furthermore, one end of the locking device is provided with a first reverse buckle, the other end of the locking device is provided with a sleeve, a second reverse buckle is arranged in the sleeve, and the first reverse buckle can be buckled with the second reverse buckle.

Furthermore, a clamping groove is further formed in one end, close to the sleeve, of the locking device, a protrusion is arranged at one end, located on the first reverse buckle, of the locking device, and the protrusion can be embedded into the clamping groove to achieve double locking.

Furthermore, the clamping groove and the bulge are square.

Furthermore, the locking module is made of metal materials and can be reused after sterilization after operation.

Further, the locking module comprises a first closing die and a second closing die, and the second closing die and the first closing die can move relatively.

Furthermore, a guide protrusion is arranged on the locking module.

Furthermore, a fixing sleeve is arranged on the locking module, a notch is formed in the fixing sleeve, and the locking device is fixed on the locking module through the notch.

Furthermore, the number of the fixed sleeves is two, the locking module comprises a first closing block and a second closing block, the second closing block and the first closing block can move relatively, the two fixed sleeves are respectively fixed on the first closing block and the second closing block, and two ends of the locking device are respectively fixed in the two fixed sleeves.

To sum up, the beneficial effects of the utility model are that: the blood vessel ligation device of the utility model can smoothly pass through a narrow space to finish ligation hemostasis, has simple, rapid and convenient operation, is suitable for ligation hemostasis of blood vessels at the deep parts of limbs, nutritional blood vessels for tumor excision and deep blood vessels for microsurgery, greatly saves the time for ligation of the deep blood vessels, improves the operation efficiency, and reduces bleeding caused by tissue traction and blood vessel tearing; the hemostatic bag is mainly used for rapid ligation and hemostasis of blood vessels with the diameter of more than 1mm, can overcome the limitations and the defects mentioned in the background technology, and has the characteristics of rapidness, stability and safety; the locking device is a disposable consumable, has small size and saves materials, the used materials are non-absorbable biological materials which can be implanted into human bodies, the imaging of later-stage imaging examination is not interfered, and the blood vessels with different lumen diameters can be used by corresponding sizes, so that the locking device not only has the firmness of the traditional method for knotting, but also has the convenience of operation in narrow space, has small traction damage to adjacent tissues, saves more time and labor than the traditional method, and is more economical and practical for popularization and application; the self-locking belt locked by the locking device occupies a small space, can be well wrapped by surrounding tissues and does not influence the activities and functions of organ tissues such as muscle nerves, blood vessels and the like; the handle module and the locking module are made of metal materials, so that the handle module and the locking module can be sterilized and reused, and the waste of materials is reduced; the locking module has different sizes, can be used for ligation of blood vessels with different diameters, is convenient to disassemble from the handle module, and has the characteristics of flexibility and easiness in use.

Drawings

FIG. 1 is a schematic view of the handle module when separated from the locking module;

FIG. 2 is a schematic view of the handle module and locking module when assembled;

FIG. 3 is a schematic view of the locking module of FIG. 2 when engaged;

FIG. 4 is a schematic view of the trigger of FIG. 3 as it is depressed;

FIG. 5 is a schematic view of another embodiment of the handle module of FIG. 2;

FIG. 6 is an external structural view of FIG. 2;

FIG. 7 is an external view of the locking device;

fig. 8 is a schematic view of the structure of the pouch;

FIG. 9 is a schematic view of the locking device;

fig. 10 is a schematic view of a locking device with a flare.

Detailed Description

Embodiments of the invention will be described in further detail with reference to the drawings, it being understood that the examples are illustrative only and should not be taken as limiting the invention, and that all of the features disclosed in the examples or all of the steps in any method or process disclosed herein can be combined in any way, except for mutually exclusive features and/or steps.

This embodiment provides a blood vessel ligation device, refer to fig. 1, including handle module 10, locking module 20, handle module 10 and locking module 20 detachable connection, locking device 30 is equipped with in the locking module 20, handle module 10 is the module of handheld and operation of operator, handle module 10 wholly embodies the molding for growing, can let locking device 30 in the locking module 20 extend and lock in entering into narrow and small space through handle module 10, realize the blood vessel ligation hemostasis in narrow and small space, easy operation is swift convenient, be applicable to the deep blood vessel of four limbs, the tumour excision nutrition blood vessel, the hemostasis of deep blood vessel ligation of microsurgery, the time of deep blood vessel ligation has been saved greatly, the operation efficiency is improved, tissue tractive and the hemorrhage that the blood vessel lacerated and arouses have been reduced.

Specifically, the handle module 10 includes a gun-shaped housing 11, the gun-shaped housing 11 includes a gun handle portion 12 and a gun barrel portion 13, the gun handle portion 12 is a portion to be held by an operator, the gun-shaped housing 11 is located at the gun barrel portion 13 and is provided with a push rod 14 and a push rod 15, the push rod 14 and the push rod 15 can both slide on the gun-shaped housing 11, and the push rod 14 and the push rod 15 cannot be mutually influenced. Specifically, be equipped with the trigger 16 that can press on the rifle form casing 11, can drive ejector pin 14 left motion through pressing trigger 16, loosen trigger 16 back, trigger 16, ejector pin 14 all resumes initial position, the realization of this mechanism is many, for example, set up shell fragment 17 between trigger 16 and stock position 12, set up recess 18 on the ejector pin 14, trigger 16's articulated position sets up elastic separation blade 19, it is rotatory to drive elastic separation blade 19 through pressing trigger 16, elastic separation blade 19 is rotatory to drive ejector pin 14 through recess 18 and move to the left, after loosening trigger 16, trigger 16 reverse rotation resumes initial position under the effect of shell fragment 17, trigger 16 drives elastic separation blade 19 reverse rotation, elastic separation blade 19 drives ejector pin 14 through recess 18 and moves right and resumes initial position. In some other embodiments, referring to fig. 5, the recess 18, the resilient flap 19 can be replaced by a first tooth 90 and a second tooth 91, the first tooth 90 meshing with the second tooth 91, the second tooth 91 being located on a gear segment 92, the center of the gear segment 92 being connected to the hinged position of the trigger 16. In some other embodiments, the spring 17 is replaced by a coil spring, which is installed at the hinge position of the trigger 16 to replace the spring 17 to complete the rebound after the trigger 16 is pressed. In addition, there are many mechanical structures for extending the rear carrier rod 14 when the trigger 16 is pressed down and retracting the rear carrier rod 14 when the trigger 16 is released, such as a crank block mechanism, a crank link mechanism, etc., which are not described herein in detail.

Preferably, the pushing rod 15 is provided with a pressing portion 53 for the operator to control the pushing rod 15 to move.

Referring to fig. 1 and 7, the locking module 20 includes a first closing block 21 and a second closing block 22, the first closing block 21 and the second closing block 22 form the locking module 20 having a hollow area 23, the hollow area 23 is used for accommodating blood vessels during operation, the second closing block 22 and the first closing block 21 can move relatively, in an initial state, a gap 24 exists between the first closing block 21 and the second closing block 22, the gap 24 is used for placing blood vessels into the hollow area 23, after the second closing block 22 moves, the first closing block 21 is engaged with the second closing block 22, the gap 24 is closed, the blood vessels are located in the hollow area 23, the locking module 20 is provided with a buckle for connecting the handle module 10, specifically, the first closing block 21 is provided with a first buckle 26 for connecting the barrel portion 13, the second closing block 22 is provided with a second buckle 27 for connecting the push rod 15, in this state, the operator can engage the first closing die 21 with the second closing die 22 by pushing the push rod 15.

The design of buckle lets locking module 20 and handle module 10 dismantle conveniently, and locking module 20 has different size sizes simultaneously, and is corresponding, and locking device 30 of different sizes also is equipped with in locking module 20, can supply different diameter vascular ligatures to use, has nimble easy characteristics of using. The locking device 30 is a disposable consumable, is made of non-metal materials, has small size, less manufacturing materials and low manufacturing cost, and meanwhile, the locking device 30 made of the non-metal materials cannot interfere with imaging of later-stage imaging examination. In addition, the locking device 30 after locking occupies a very small space, can be well wrapped by surrounding tissues, and does not affect the activities and functions of organ tissues such as muscle nerves, blood vessels and the like.

Preferably, referring to fig. 6, in order to keep the first closing block 21 and the second closing block 22 engaged all the time and facilitate the ligation of blood vessels, a sliding rod 28 is connected to the push rod 15, a sliding slot 29 is provided on the barrel portion 13, one end of the sliding rod 28 is inserted into the sliding slot 29, the other end is hinged to the push rod 15, the sliding slot 29 includes a first section 93 located at an upper side, a third section 95 located at a lower side, and a second section 94 located between the first section 93 and the third section 95, the second section 94 connects the left side of the first section 93 with the left side of the third section 95, the third section 95 is shorter than the first section 93, when the sliding rod 28 slides to the right end of the third section 95, the first closing block 21 and the second closing block 22 are locked and engaged, when the sliding rod 28 slides to the right end of the first section 93, the first closing block 21 and the second closing block 22 are unlocked, the gap 24 is restored between the first closing block 21 and the second closing block 22, the restoration notch 24 is mainly used for removing the ligated blood vessel from the hollow region 23.

Preferably, in order to facilitate unlocking of the second closing block 22, a spring is arranged between the push rod 15 and the gun-shaped housing 11, when the operator pushes the slide rod 28 out of the third section 95, under the action of the spring, the push rod 15 rapidly drives the slide rod 28 to return, the slide rod 28 returns to the first section 93, and simultaneously the push rod 15 drives the second closing block 22 to unlock.

Referring to fig. 9, the locking device 30 is a self-locking belt, one end of the locking device 30 is provided with a first reverse buckle 31, the other end of the locking device 30 is provided with a sleeve 32, the sleeve 32 is hollow, the inner wall of the sleeve 32 is provided with a second reverse buckle 33, when one end of the first reverse buckle 31 of the locking device 30 penetrates through the sleeve 32, the second reverse buckle 33 is buckled with the first reverse buckle 31, due to locking between the reverse buckles, one end of the locking device 30 penetrating through the sleeve 32 can only slide in one direction, self-locking of the locking device 30 is achieved, and the situation that blood vessels are loosened after ligation can be effectively avoided through self-locking.

Preferably, a clamping groove 34 is further formed at one end of the locking device 30 close to the sleeve 32, and correspondingly, a protrusion 35 is formed at one end of the locking device 30 located at the first reverse buckle 31, and when the first reverse buckle 31 of the locking device 30 penetrates out of the sleeve 32, the protrusion 35 can be buckled into the clamping groove 34, so that double locking is achieved. Furthermore, the clamping groove 34 and the protrusion 35 are both square, so that the protrusion 35 is more firmly buckled into the clamping groove 34.

Preferably, the thickness of one end of the slot 34 of the locking device 30 is greater than that of one end of the first reverse buckle 31 of the locking device 30, so as to avoid that the thickness of one end of the slot 34 of the locking device 30 is reduced due to the slot 34, so that the locking device 30 is easy to break.

Preferably, referring to fig. 10, in order to facilitate that one end of the first reverse buckle 31 of the locking device 30 is clamped into one end of the sleeve 32 of the locking device 30, one end of the sleeve 32 of the locking device 30 is provided with a flare 36, and the flare 36 can guide one end of the first reverse buckle 31 of the locking device 30, so as to facilitate the first reverse buckle 31 to enter the sleeve 32 to be buckled with the second reverse buckle 33.

Preferably, referring to fig. 1, 6 and 8, the first closing die 21 and the second closing die 22 are provided with a fixing sleeve 50 at the position of the hollow area 23, the fixing sleeve 50 is provided with a notch 51, the fixing sleeve 50 is used for fixing the locking device 30 in the locking module 20, and the notch 51 is used for removing the locking device 30 from the locking module 20 after the locking device 30 completes the operation of ligating the blood vessel. The first closing block 21 and the second closing block 22 are both provided with fixing sleeves 50, the two fixing sleeves 50 are respectively used for fixing two ends of the locking device 30, a gap between the two ends of the locking device 30 corresponds to the position of the notch 24, when the first closing block 21 and the second closing block 22 are engaged, the two fixing sleeves 50 drive the two ends of the locking device 30 to approach each other, and one end of the first reverse buckle 31 of the locking device 30 is clamped into one end of the sleeve 32 of the locking device 30.

Preferably, referring to fig. 1 and 2, the left end of the top rod 14 is provided with a special-shaped elastic piece 60, the special-shaped elastic piece 60 comprises two branch sections 61 and a merging section 62, a certain included angle is opened between the two branch sections 61, a channel 25 communicating with the hollow area 23 is arranged in the locking module 20, when the locking module 20 is assembled with the handle module 10, the profiled resilient tab 60 passes through the channel 25 into the hollow area 23, the two branch sections 61 are expanded by a certain angle under the action of the locking device 30, and because the special-shaped elastic piece 60 has elasticity, during the expansion of the two limbs 61, the limbs 61 exert a clamping force on the locking device 30, since the locking device 30 is now confined within the hollow area 23 by the sleeve 50, when the locking device 30 is subjected to a clamping force, the locking device 30 will contract and the first undercut 31 of the locking device 30 will continue to snap into the end of the sleeve 32 of the locking device 30.

Preferably, in order to improve the resilience of the bifurcated section 61 after deformation, the shaped elastic sheet 60 is provided with a side elastic sheet 63, one end of the side elastic sheet 63 is connected with the bifurcated section 61, and the other end is connected with the merging section 62.

Preferably, referring to fig. 2, the first closing die 21 is provided with a guide protrusion 52 in order to allow the bifurcated portion 61 of the shaped elastic piece 60 to better contact with the locking device 30.

Preferably, the handle module 10 and the locking module 20 are made of metal materials, and can be reused after sterilization after operation, so that the waste of materials is reduced.

In order to make the technical solution of the present invention more convenient for the technical staff to understand, the following provides a specific using method by combining the specific structure of the present invention, referring to fig. 1-fig. 10, first fixing both ends of the locking device 30 in two fixing sleeves 50 on the first closing block 21 and the second closing block 22 respectively, and making the gap between both ends of the locking device 30 correspond to the gap 24 of the locking module 20, then extending the special-shaped elastic sheet 60 into the locking module 20 through the channel 25, and using the first buckle 26 and the second buckle 27 to complete the connection between the locking module 20 and the handle module 10, as shown in fig. 2;

an operator can enable the locking module 20 to enter a narrow space through the handle module 10, and enable a blood vessel to enter the locking device 30 through the notch 24, the operator pushes the push rod 15 to move, the slide rod 28 on the push rod 15 enters the third section 95 along the first section 93 and the second section 94, the first closing block 21 is occluded with the second closing block 22 and locked, the two fixing sleeves 50 drive the two ends of the locking device 30 to approach each other, one end of the first reverse buckle 31 of the locking device 30 is blocked into one end of the sleeve 32 of the locking device 30, the second reverse buckle 33 is occluded with the first reverse buckle 31, and the notch 24 is closed, so that primary locking is completed, as shown in fig. 3;

an operator presses the trigger 16 to drive the elastic blocking sheet 19 to rotate, the elastic blocking sheet 19 rotates to drive the ejector rod 14 to move left through the groove 18, the special-shaped elastic sheet 60 on the ejector rod 14 extends into the locking module 20, because the locking device 30 is limited in the hollow area 23 of the locking module 20, under the effect of continuous compression of the special-shaped elastic sheet 60, the locking device 30 continuously contracts under the clamping force of the special-shaped elastic sheet 60, one end of the first reverse buckle 31 of the locking device 30 is continuously clamped into one end of the sleeve 32 of the locking device 30 until the locking device 30 tightens a blood vessel, the locking device 30 cannot continuously contract any more, the locking device 30 is squeezed around the locking module 20 and the special-shaped elastic sheet 60, and the bulge 35 on the locking device 30 is buckled into the clamping groove 34 to realize double locking, as shown in fig. 4;

when an operator releases the trigger 16, the trigger 16 reversely rotates to restore the initial position under the action of the elastic sheet 17, the trigger 16 drives the elastic blocking sheet 19 to reversely rotate, and the elastic blocking sheet 19 drives the ejector rod 14 to right move to restore the initial position through the groove 18;

the operator pushes the sliding rod 28 out of the third section 95 of the sliding slot 29, the push rod 15 resets, the sliding rod 28 returns to the first section 93, the push rod 15 drives the second closing block 22 to unlock, the gap 24 reappears, the operator moves the blood vessel out of the gap, the locking device 30 falls off from the notch 51 due to the fact that the locking device 30 is fixed on the blood vessel at the moment, the locking device is separated from the locking module 20, the operator takes the locking module 20 out of the narrow space through the handle module 10, and then all blood vessel ligation operations are completed.

The above description is only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through creative work should be covered within the protection scope of the present invention, and therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (10)

1. A blood vessel ligation device is characterized by comprising a locking module, wherein a hollow area for accommodating a blood vessel is arranged in the locking module, a locking device for ligating the blood vessel is arranged in the hollow area, and the locking device is detachable;

wherein, locking device can auto-lock, and locking device after the auto-lock can not loosen.

2. The blood vessel ligation device according to claim 1, wherein the locking module is provided with an openable or closable notch through which the blood vessel can enter the hollow region.

3. The blood vessel ligation device according to claim 1, wherein the locking device has a first reverse buckle at one end, a sleeve at the other end, and a second reverse buckle in the sleeve, the first reverse buckle being able to buckle with the second reverse buckle.

4. The blood vessel ligation device according to claim 3, wherein the locking device is provided with a locking slot at an end thereof adjacent to the sleeve, and the locking device is provided with a protrusion at an end thereof adjacent to the first reverse buckle, the protrusion being capable of being inserted into the locking slot to achieve double locking.

5. The blood vessel ligation device according to claim 4, wherein the slot and the protrusion are square.

6. The blood vessel ligation device according to claim 1, wherein the locking module is made of metal and can be reused after sterilization after operation.

7. The blood vessel ligation device according to claim 1, wherein the locking module comprises a first closure member and a second closure member, the second closure member being movable relative to the first closure member.

8. The blood vessel ligation device according to claim 1, wherein the locking module is provided with a guide projection.

9. The blood vessel ligation device according to claim 1, wherein the locking module is provided with a fixing sleeve, the fixing sleeve is provided with a notch, and the locking device is fixed on the locking module through the notch.

10. The blood vessel ligation device according to claim 9, wherein the two fixing sleeves are provided, the locking module comprises a first closing block and a second closing block, the second closing block and the first closing block can move relatively, the two fixing sleeves are respectively fixed on the first closing block and the second closing block, and the two ends of the locking device are respectively fixed in the two fixing sleeves.

Images