CN216060610U - Auxiliary device for minimally invasive acquisition of blood bridge vessel for cardiac surgery - Google Patents

Abstract

The utility model discloses an auxiliary device for minimally invasive acquisition of a bridge vessel for cardiac surgery, which comprises a first operating handle, a first expansion handle, a second operating handle and a second expansion handle; the upper end of the first operating handle is connected with the lower end of the first expansion handle through a first connecting handle, the first connecting handle is arc-shaped and protrudes to the outer side, and a first opening claw is arranged at the upper end of the first connecting handle; the upper end of the second operating handle is connected with the lower end of the second expansion handle through a second connecting handle, the second connecting handle is arc-shaped and protrudes to the outer side, and the upper end of the first connecting handle is provided with a second spreading claw; the first operating handle is rotatably connected with the second operating handle, and the first expansion handle and the second expansion handle, and the first opening claw and the second opening claw are driven to be synchronously away when the first operating handle is close to the second operating handle. The utility model can simultaneously perform the operation of opening the skin at the incision of a patient and the operation of expanding the subcutaneous tissue of the patient.

Description

Auxiliary device for minimally invasive acquisition of blood bridge vessel for cardiac surgery

Technical Field

The utility model relates to the field of cardiac surgery, in particular to an auxiliary device for minimally invasive acquisition of a bridge blood vessel for cardiac surgery.

Background

In cardiac surgery, coronary artery bypass grafting (coronary artery bypass surgery) is required for patients with severe coronary heart disease to improve myocardial ischemia; before a patient performs a coronary artery bypass surgery, the patient needs to take materials in advance, and autologous blood vessels (bypass blood vessels) required by the bypass surgery are prepared; the bridge vessels are selected from the great saphenous vein of the lower limbs, the radial artery of the upper limbs, the internal mammary artery in the thoracic cage at both sides, and the great saphenous vein is widely used as the bridge vessel in the coronary bypass surgery.

At present, the great saphenous vein bridge vessel is obtained mainly by a traditional method and a minimally invasive method. According to the traditional mode, according to the length of a blood vessel required by a coronary bypass surgery, skin with a corresponding length is selected from the leg of a patient to form a whole incision along the great saphenous vein, and the incision is sutured after the great saphenous vein bypass blood vessel is separated and obtained. However, the operation incision of the method is large, great side damage is brought to a patient, the wound suturing time after blood vessel taking is long, the operation time is prolonged, the free skin edge is prone to dislocation during suturing, the skin attractiveness is affected, and the possibility of postoperative infection and poor wound healing is increased.

There are two main ways of minimally invasive surgery: firstly, obtaining a large saphenous vein by segmenting a small incision, namely making 3-4 incisions with the length of 3-5 cm on the leg part of a patient, and completely taking down the large saphenous vein by adopting a tunnel mode, so that the incision length is greatly shortened, and the operation time is reduced; secondly, the great saphenous vein is obtained under the assistance of the endoscope, namely 1 incision with the length of 3-5 cm is made at the knee joint of a patient, the great saphenous vein is dissociated subcutaneously in an endoscope assistance mode, and the great saphenous vein is taken out after being separated from the vein through the endoscope after being taken out with a proper length.

Since the endoscope has a high requirement for operating doctors to obtain the great saphenous vein, an operator who is not familiar with the endoscope has a long operation time, a technical learning curve is also long, and the use of the endoscope increases operation cost, the first mode is mostly adopted by the doctors in general. However, when a great saphenous vein bridge vessel is obtained through a small incision in a segmented manner, the skin at the incision of a patient needs to be opened, and meanwhile, subcutaneous tissues need to be expanded, so that the operation visual field is difficult to expose, and the vessel obtaining can be smoothly completed only by pulling the skin with the help of an assistant to expose the operation visual field, so that the operation time is prolonged, the operation labor cost is increased, and the efficiency of obtaining the bridge vessel needs to be improved.

Therefore, there is a need for an auxiliary device which can simultaneously perform a stretching operation on the skin of the incision of a patient and a dilation operation on the subcutaneous tissue of the patient when a large saphenous vein bridge vessel is obtained by segmenting a small incision.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an auxiliary device for minimally invasive harvesting of a bridge vessel for cardiac surgery, which can simultaneously perform a dilation operation on the skin of an incision of a patient and a dilation operation on the subcutaneous tissue of the patient.

In order to achieve the above object, the present invention particularly provides an auxiliary device for minimally invasive bridge vessel harvesting in cardiac surgery, which comprises a first operation handle, a first expansion handle, a second operation handle and a second expansion handle;

the upper end of the first operating handle is connected with the lower end of the first expansion handle through a first connecting handle, the first connecting handle is arc-shaped and protrudes to the outer side, and a first opening claw is arranged at the upper end of the first connecting handle;

the upper end of the second operating handle is connected with the lower end of the second expansion handle through a second connecting handle, the second connecting handle is arc-shaped and protrudes to the outer side, and the upper end of the first connecting handle is provided with a second spreading claw;

the first operating handle is rotatably connected with the second operating handle, and the first expansion handle and the second expansion handle, and the first opening claw and the second opening claw are driven to be synchronously away when the first operating handle is close to the second operating handle.

As a further improvement of the technical scheme of the utility model, the first expansion handle and the second expansion handle are of the same straight handle structure, and the cross sectional areas of the first expansion handle and the second expansion handle are gradually reduced from bottom to top.

As a further improvement of the technical scheme of the utility model, the outer side surfaces of the first expansion handle and the second expansion handle are both smooth cambered surface structures.

As a further improvement of the technical solution of the present invention, the first spreading claw and the second spreading claw are respectively bent in opposite directions.

As a further improvement of the technical solution of the present invention, the first spreading claw is formed by bending an end of the first connecting handle; the second spreading claw is formed by bending the end of the second connecting handle.

As a further improvement of the technical solution of the present invention, the first operating lever and the second operating lever are connected by a rotating shaft.

As a further improvement of the technical scheme of the utility model, the lower end of the first operating handle is fixedly connected with a first operating ring, and the lower end of the second operating handle is fixedly connected with a second operating ring.

As a further improvement of the technical scheme of the utility model, a limiting component for limiting the relative position of the first operating handle and the second operating handle is arranged between the first operating handle and the second operating handle.

As a further improvement of the technical scheme of the utility model, the limiting assembly comprises a limiting arm and a movable handle, an adjusting through groove is arranged in the second operating handle, the limiting arm is arc-shaped, one end of the limiting arm is fixed on the first operating handle, the other end of the limiting arm penetrates through the adjusting through groove, a first convex tooth is arranged on the lower side surface of the limiting arm, and a second convex tooth which can be meshed with the first convex tooth is arranged on the upper side surface of the movable handle; the movable handle is slidably arranged in the adjusting through groove, and an elastic part used for driving the movable handle to tightly press the limiting arm is arranged in the adjusting through groove.

As a further improvement of the technical scheme of the utility model, the inner wall of the part, located at the adjusting through groove, of the second operating handle is provided with a guide sliding groove, the side surface, contacted with the second operating handle, of the movable handle is provided with a sliding block, and the sliding block extends into the guide sliding groove and can slide along the guide sliding groove.

Through the disclosure, the utility model has the following beneficial technical effects:

the utility model provides an auxiliary device for minimally invasive acquisition of a bridge vessel for cardiac surgery, wherein a first expansion handle and a first opening claw are driven by a first operating handle to move left and right, and a second expansion handle and a second opening claw are driven by a second operating handle to move left and right; when the first operating handle and the second operating handle rotate relatively, the first expanding handle and the second expanding handle are gradually far away from each other and the first opening claw and the second opening claw are also gradually far away from each other in the process that the first operating handle and the second operating handle are gradually close to each other; when the first operating handle and the second operating handle are gradually far away from each other, the first expansion handle and the second expansion handle are gradually close to each other, and the first spreading claw and the second spreading claw are also gradually close to each other; through the cooperation of above-mentioned structure, when the segmentation small incision acquireed great saphenous vein bridge blood vessel, utilize this device can strut the operation and expand the operation to its subcutaneous tissue to patient's incision department skin simultaneously for the operation that obtains the bridge blood vessel can be accomplished to the doctor single, thereby has shortened operation time, obtains the efficiency of bridge blood vessel and obtains improving.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of FIG. 1 at B;

fig. 4 is a cross-sectional view taken along line C-C of fig. 3.

Detailed Description

The technical scheme in the embodiment of the utility model will be clearly and completely described below with reference to the accompanying drawings; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Example one

As shown in fig. 1 to 2: the auxiliary device for minimally invasive bridge vessel acquisition in cardiac surgery comprises afirst operating handle 11, afirst expansion handle 12, asecond operating handle 21 and asecond expansion handle 22; the upper end of thefirst operating handle 11 is connected with the lower end of thefirst expansion handle 12 through a first connectinghandle 13, the first connectinghandle 13 is arc-shaped and protrudes to the outside, and the upper end of the first connectinghandle 13 is provided with a first spreadingclaw 14; the upper end of thesecond operating handle 21 is connected with the lower end of thesecond expansion handle 22 through a second connectinghandle 23, the second connectinghandle 23 is arc-shaped and protrudes to the outer side, and the upper end of the first connectinghandle 13 is provided with a second spreadingclaw 24; thefirst operating handle 11 is rotatably connected with thesecond operating handle 21, and drives the first expandinghandle 12 and the second expandinghandle 22, and the first spreadingclaw 14 and the second spreadingclaw 24 to be away from each other synchronously when thefirst operating handle 11 is close to thesecond operating handle 21.

"Up" and "down" are based on the directions shown in FIG. 1.

Thefirst operating handle 11 and thesecond operating handle 21 are arranged in parallel at the left and right, and are approximately in a splayed shape, and the first operating handle and the second operating handle are matched for a doctor to perform manual operation in an operation; in order to facilitate control, a firstoperation finger ring 15 is fixedly connected to the lower end of thefirst operation handle 11, a secondoperation finger ring 25 is fixedly connected to the lower end of thesecond operation handle 21, and the firstoperation finger ring 15 and the secondoperation finger ring 25 are used for allowing a doctor to insert fingers.

The first connectinghandle 13 and the second connectinghandle 23 are arranged in parallel left and right and mainly play a role in connection; the outer side of the first connectinghandle 13 refers to the side of the first connectinghandle 13 far away from the second connectinghandle 23, and the outer side of the second connectinghandle 23 refers to the side of the second connectinghandle 23 far away from the first connectinghandle 13, so that a larger operation space can be formed between the first connectinghandle 13 and the second connectinghandle 23, the blocking of the operation field is avoided, and the operation is facilitated.

Thefirst expansion handle 12 and thesecond expansion handle 22 are arranged in parallel left and right and are used for expanding subcutaneous tissues; thefirst expansion handle 12 and thesecond expansion handle 22 may have the same structure, such as the same straight handle structure, and the cross-sectional area of thefirst expansion handle 12 and thesecond expansion handle 22 decreases from bottom to top; in order to improve the safety during expansion, the outer side surfaces of thefirst expansion handle 12 and thesecond expansion handle 22 are both smooth cambered surfaces, and similarly, the upper end surfaces of thefirst expansion handle 12 and thesecond expansion handle 22 are both smooth cambered surfaces; alternatively, thefirst expansion shank 12 and thesecond expansion shank 22 may be designed as circular rod structures.

The first spreadingclaw 14 and the second spreadingclaw 24 are arranged in parallel left and right and are matched for spreading the skin at the incision. Preferably, the first spreadingclaw 14 and the second spreadingclaw 24 are respectively bent in opposite directions, for example, when the first spreadingclaw 14 is simultaneously bent to the left side and the front side, the second spreadingclaw 24 is simultaneously bent to the right side and the rear side; alternatively, for example, when the first spreadingclaws 14 are bent simultaneously to the left and the front, the second spreadingclaws 24 are bent simultaneously to the right and the front.

For the purpose of improving the structural strength, thefirst distraction claw 14 can be formed by bending the end of the first connectinghandle 13, and thesecond distraction claw 24 can be formed by bending the end of the second connectinghandle 23; of course, the first spreadingclaws 14 and the second spreadingclaws 24 may be connected to the first and second connection handles 13 and 23 by, for example, welding.

Thefirst operating handle 11 and thesecond operating handle 21 are connected through a rotating shaft 3 to realize the rotating connection of the two; the rotary shaft 3 may be, for example, a pin structure.

Thefirst expansion handle 12 and thefirst opening claw 14 are driven by thefirst operating handle 11 to move left and right, and thesecond expansion handle 22 and the second openingclaw 24 are driven by thesecond operating handle 21 to move left and right; when thefirst operating handle 11 and thesecond operating handle 21 rotate relatively, in the process that thefirst operating handle 11 and thesecond operating handle 21 gradually approach, the first expandinghandle 12 and the second expandinghandle 22 gradually move away, and the first spreadingclaw 14 and the second spreadingclaw 24 also gradually move away; when thefirst operating handle 11 and thesecond operating handle 21 are gradually separated from each other, the first expandinghandle 12 and the second expandinghandle 22 are gradually moved closer to each other, and the first spreadingclaw 14 and the second spreadingclaw 24 are also gradually moved closer to each other.

By cooperating with the above structure, the auxiliary device can be used in the following ways:

after a doctor cuts the skin of a patient, the great saphenous vein bridge blood vessel can be seen to be positioned between a subcutaneous hoof tissue layer and a muscle layer, the subcutaneous hoof tissue layer at the cut is dissociated, the great saphenous vein bridge blood vessel is exposed, and the integrity of a great saphenous vein blood vessel sheath membrane is ensured as much as possible; thefirst expansion handle 12 and thesecond expansion handle 22 of the auxiliary device (at the time, the two are in a closed state) are carefully inserted into the position below the uncut skin of the patient along the path of the surgical blood vessel, and the insertion position is a gap between the tectorial layer and the tunica vaginalis; securing the first and second spreadingclaws 14 and 24 in position at the skin incision while the first andsecond spreading handles 12 and 22 are inserted into the gap between the tissue layer of the crus and the tunica vaginalis; after thefirst expansion handle 12 and thesecond expansion handle 22 are driven by thefirst operation handle 11 and thesecond operation handle 21 to be opened towards two sides, the gap between the tectorial layer and the vascular sheath layer can be expanded, and meanwhile, the first openingclaw 14 and the second openingclaw 24 are opened to fully expose the incision of the operation position, so that the operation incision and the subcutaneous operation path are exposed at the same time, and the efficiency of taking the bridge blood vessel is improved.

Example two

As shown in fig. 1 to 4, on the basis of the first embodiment, the following improvements can be made to the minimally invasive bridge vessel harvesting assisting device for cardiac surgery according to the present embodiment: a limiting component for limiting the relative position of thefirst operating handle 11 and thesecond operating handle 21 is arranged between the two operating handles. Through spacing subassembly, can adjust the clearance betweenfirst operation handle 11 and thesecond operation handle 21, prevent that first operation handle 11 and second operation handle 21 from taking place improper rotation, improve the safety in utilization.

Specifically, the limiting component may include a limitingarm 41 and amovable handle 42, an adjusting throughgroove 211 is formed in thesecond operating handle 21, the limitingarm 41 is arc-shaped, one end of the limitingarm 41 is fixed to thefirst operating handle 11, the other end of the limiting arm passes through the adjusting throughgroove 211, a first protrudingtooth 411 is formed on the lower side surface of thelimiting arm 41, and a second protrudingtooth 421 which can be engaged with the first protrudingtooth 411 is formed on the upper side surface of themovable handle 42; themovable handle 42 is slidably disposed in the adjusting throughgroove 211, and anelastic member 43 for driving themovable handle 42 to press thelimiting arm 41 is disposed in the adjusting throughgroove 211. Thefirst teeth 411 and thesecond teeth 421 may have a saw-tooth structure.

The adjusting throughgroove 211 penetrates through the left and right sides of thesecond operating handle 21; thestopper arm 41 is bent toward the lower ends of the first andsecond levers 11 and 21. When the firstconvex teeth 411 are tightly engaged with the secondconvex teeth 421, themovable handle 42 is tightly pressed on the position-limitingarm 41, so that the position-limiting arm 41 cannot move, and thefirst operating handle 11 connected with the position-limiting arm 41 is limited in rotational freedom; when thefirst protrusion 411 is disengaged from thesecond protrusion 421, thelimiting arm 41 can move through the adjusting through-slot 211. Theelastic member 43 is preferably a compression spring structure, one end of which is fixed at the bottom of the adjusting throughslot 211, and the other end of which is fixed at the lower side surface of themovable handle 42, and in a free state, themovable handle 42 can be driven to press thelimiting arm 41, and when the doctor presses down themovable handle 42, themovable handle 42 overcomes the elastic force of theelastic member 43 to release the contact between themovable handle 42 and thelimiting arm 41.

In order to ensure that themovable handle 42 is positioned in the adjusting throughgroove 211 and slides along the adjusting throughgroove 211 directionally, as shown in fig. 4, the inner wall of the portion of thesecond operating handle 21 located in the adjusting throughgroove 211 is provided with a guiding slidinggroove 212, and the side of themovable handle 42 contacting with thesecond operating handle 21 is provided with asliding block 422, and thesliding block 422 extends into the guiding slidinggroove 212 and can slide along the guiding slidinggroove 212.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

Translated fromChinese

1.一种心脏外科用微创获取桥血管的辅助装置，其特征在于：包括第一操作柄、第一扩张柄、第二操作柄和第二扩张柄；1. An auxiliary device for minimally invasive acquisition of bridged blood vessels for cardiac surgery, characterized in that: it comprises a first operating handle, a first dilation handle, a second operating handle and a second dilation handle;所述第一操作柄的上端与第一扩张柄的下端之间通过第一连接柄相连接，所述第一连接柄呈弧形且凸向外侧，所述第一连接柄的上端设有第一撑开爪；The upper end of the first operating handle and the lower end of the first expansion handle are connected by a first connecting handle, the first connecting handle is arc-shaped and protrudes to the outside, and the upper end of the first connecting handle is provided with a first connecting handle. open the claws;所述第二操作柄的上端与第二扩张柄的下端之间通过第二连接柄相连接，所述第二连接柄呈弧形且凸向外侧，所述第一连接柄的上端设有第二撑开爪；The upper end of the second operation handle and the lower end of the second expansion handle are connected by a second connection handle, the second connection handle is arc-shaped and protrudes to the outside, and the upper end of the first connection handle is provided with a first connection handle. two open claws;所述第一操作柄与第二操作柄转动连接，且在所述第一操作柄与第二操作柄相靠近时带动第一扩张柄与第二扩张柄、第一撑开爪与第二撑开爪同步远离。The first operating handle and the second operating handle are rotatably connected, and when the first operating handle and the second operating handle are approached, the first expanding handle and the second expanding handle, the first opening claw and the second supporting handle are driven Open jaws move away synchronously.2.根据权利要求1所述的一种心脏外科用微创获取桥血管的辅助装置，其特征在于：2. A kind of auxiliary device for minimally invasive acquisition of bridging blood vessels for cardiac surgery according to claim 1, is characterized in that:所述第一扩张柄与第二扩张柄为相同的直柄结构，且从下至上所述第一扩张柄与第二扩张柄的横截面积逐渐减小。The first expansion handle and the second expansion handle have the same straight handle structure, and the cross-sectional areas of the first expansion handle and the second expansion handle gradually decrease from bottom to top.3.根据权利要求1所述的一种心脏外科用微创获取桥血管的辅助装置，其特征在于：3. A kind of auxiliary device for minimally invasive acquisition of bridging blood vessels for cardiac surgery according to claim 1, characterized in that:所述第一扩张柄与第二扩张柄的外侧表面均为圆滑的弧面结构。The outer surfaces of the first expansion handle and the second expansion handle are both smooth arc structures.4.根据权利要求1所述的一种心脏外科用微创获取桥血管的辅助装置，其特征在于：4. A kind of auxiliary device for minimally invasively obtaining bridging blood vessels for cardiac surgery according to claim 1, characterized in that:所述第一撑开爪与第二撑开爪分别朝相反方向弯曲。The first spreading claw and the second spreading claw are respectively bent in opposite directions.5.根据权利要求1所述的一种心脏外科用微创获取桥血管的辅助装置，其特征在于：5. A kind of auxiliary device for minimally invasive acquisition of bridging blood vessels for cardiac surgery according to claim 1, characterized in that:所述第一撑开爪由第一连接柄的末端弯曲形成；所述第二撑开爪由第二连接柄的末端弯曲形成。The first spreading claw is formed by bending the end of the first connecting handle; the second spreading claw is formed by bending the end of the second connecting handle.6.根据权利要求1所述的一种心脏外科用微创获取桥血管的辅助装置，其特征在于：6. A kind of auxiliary device for minimally invasive acquisition of bridging blood vessels for cardiac surgery according to claim 1, characterized in that:所述第一操作柄与第二操作柄通过一转动轴相连接。The first operating handle and the second operating handle are connected through a rotating shaft.7.根据权利要求1所述的一种心脏外科用微创获取桥血管的辅助装置，其特征在于：7. A kind of auxiliary device for minimally invasive acquisition of bridging blood vessels for cardiac surgery according to claim 1, characterized in that:所述第一操作柄的下端固定连接有第一操作指环，所述第二操作柄的下端固定连接有第二操作指环。A first operating finger ring is fixedly connected to the lower end of the first operating handle, and a second operating finger ring is fixedly connected to the lower end of the second operating handle.8.根据权利要求1至7任一项所述的一种心脏外科用微创获取桥血管的辅助装置，其特征在于：8. The auxiliary device for minimally invasively obtaining a bridged blood vessel for cardiac surgery according to any one of claims 1 to 7, characterized in that:所述第一操作柄与第二操作柄之间设有用于限制二者相对位置的限位组件。Between the first operating handle and the second operating handle, a limiting component for limiting the relative positions of the two is provided.9.根据权利要求8所述的一种心脏外科用微创获取桥血管的辅助装置，其特征在于：9. A kind of auxiliary device for minimally invasive acquisition of bridging blood vessels for cardiac surgery according to claim 8, characterized in that:所述限位组件包括限位臂及活动柄，所述第二操作柄中设有调节通槽，所述限位臂呈弧形且其一端固定于第一操作柄、另一端穿过调节通槽，所述限位臂的下侧面设有第一凸齿，所述活动柄的上侧面设有可与第一凸齿相啮合的第二凸齿；所述活动柄滑动设于调节通槽，所述调节通槽中设有用于驱使活动柄紧压限位臂的弹性件。The limit assembly includes a limit arm and a movable handle, an adjustment through slot is arranged in the second operating handle, the limit arm is arc-shaped, one end of the limit arm is fixed on the first operation handle, and the other end passes through the adjustment through hole. The lower side of the limit arm is provided with a first convex tooth, the upper side of the movable handle is provided with a second convex tooth that can be engaged with the first convex tooth; the movable handle is slidably arranged in the adjustment through slot , an elastic member for driving the movable handle to press the limit arm tightly is arranged in the adjustment through groove.10.根据权利要求9所述的一种心脏外科用微创获取桥血管的辅助装置，其特征在于：10. A kind of auxiliary device for minimally invasive acquisition of bridge blood vessels for cardiac surgery according to claim 9, characterized in that:所述第二操作柄位于调节通槽部分的内壁设有导向滑槽，所述活动柄上与第二操作柄接触的侧面设有滑块，所述滑块伸入导向滑槽内并可沿导向滑槽滑动。A guide chute is provided on the inner wall of the second operating handle located in the adjusting through groove, and a sliding block is provided on the side of the movable handle that is in contact with the second operating handle. The guide chute slides.

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