Laparoscopic separation device

Abstract

The present invention relates to the technical field of human tissue separation instruments, and particularly relates to a laparoscopic separation device. The laparoscopic separation device includes: a support member; at least two elastic separation members installed at the end of the support member, and one ends of the plurality of elastic separation members away from the support member approach each other so that the plurality of elastic separation members are arranged in a conical or duckbill shape; a motion assembly installed on the support member, with an abutting member installed at one end of the motion assembly, and the abutting member extends between the plurality of elastic separation members. During the process of separating human tissues, the elastic separation members only support and separate the human tissues, separating the human tissues while rarely causing additional damage to the human tissues. Moreover, the movement speed and frequency of the reciprocating movement of the abutting member can be adjusted and controlled by the movement speed and frequency of the motion assembly, without the need for manual operation, which can greatly improve the surgical efficiency and the precision of surgical operation of human tissue separation, and reduce the operation load of the surgeon.

Description

Technical Field

[0001] The present invention relates to the technical field of human tissue separation instruments, and particularly relates to a laparoscopic separation device. Background Art

[0002] Currently, in surgical operations, especially in urology, most operations adopt minimally invasive techniques. During laparoscopic operations, most of the time is spent on separation operations, and most separations are along natural tissue spaces. The characteristics of natural tissue spaces are loose tissue, few blood vessels, poor tissue strength, and easy separation. In the prior art, instruments such as ultrasonic scalpels, electrocoagulation hooks, separation forceps, and scissors are usually used for sharp, blunt, or a combination of sharp and blunt separation methods. Sharp separation relies on heat platforms such as electrocoagulation hooks and ultrasonic scalpels, or sharp instruments such as scissors. Sharp separation causes great damage to tissues. Blunt separation relies on blunt instruments such as tissue forceps and suction devices. Although blunt separation causes less damage to tissues than sharp separation, these separation instruments require the operator to perform a single separation action, resulting in low efficiency. When the separation end of the blunt separation instrument is made of hard materials such as metal and the acting area is small, the damage to human tissues is still severe, causing additional damage to tissues and even resulting in complications such as postoperative bleeding and tissue damage. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art, such as large damage to tissues and low separation efficiency during tissue separation surgery, and the influence of the operator's separation operation on separation accuracy, thereby providing a laparoscopic separation device.

[0004] To solve the above technical problem, the present invention provides a laparoscopic separation device, including:

[0005] A support member;

[0006] At least two elastic separation members, installed at the end of the support member, and the ends of the plurality of elastic separation members away from the support member are close to each other so that the plurality of elastic separation members are arranged in a conical or duckbill shape;

[0007] A motion assembly, installed on the support member, and an abutting member is installed at one end of the motion assembly, and the abutting member extends between the plurality of elastic separation members;

[0008] The abutting member has a first state in which it moves towards the elastic separation members under the drive of the motion assembly to separate the ends of the plurality of elastic separation members that are close to each other, and a second state in which it moves away from the elastic separation members under the drive of the motion assembly to cause the ends of the plurality of elastic separation members that are close to each other to close under their own elastic action.

[0009] Optionally, the motion assembly includes a driving member, a driving turntable and a driving rod, the driving turntable is installed at the output end of the driving member, an abutment member is installed at one end of the driving rod, and a pair of driving support rods are arranged in parallel at the other end, the driving turntable is arranged between the pair of driving support rods, a plurality of driving teeth are arranged at intervals along the axial direction on the driving support rod, a plurality of driving columns are arranged at intervals along the circumferential direction in a fan-shaped area on the driving turntable, and the central angle of the fan-shaped area is less than 180°. When the driving turntable rotates, the driving columns respectively cooperate with the driving teeth on different driving support rods to make the driving support rods move back and forth.

[0010] Optionally, the motion component further comprises a mounting plate, on which a pair of slide grooves are arranged in parallel, the pair of slide grooves are arranged opposite to each other, and the driving support rods are slidingly matched with the slide grooves in a one-to-one correspondence.

[0011] Optionally, a speed regulating button is installed on the support member, and the speed regulating button is electrically connected to the driving member.

[0012] Optionally, a separation head is provided at one end of the elastic separation member close to each other, and the plurality of separation heads are parallel to each other and extend along the axial direction of the support member. The separation head is made of soft material to reduce damage to the separated tissue.

[0013] Optionally, an elastic connecting member is provided at one end of the plurality of elastic separation members close to each other, and the elastic connecting member connects the ends of the plurality of separation heads close to each other into an integrated structure.

[0014] Optionally, the elastic connecting member is a rubber membrane.

[0015] Optionally, the abutment piece is spherical, hemispherical, conical or polyhedral.

[0016] Optionally, the elastic separating member and the supporting member are rotationally connected via a rotating shaft.

[0017] Optionally, a pair of elastic separators are provided, and the elastic separators are sheet-like structures.

[0018] The technical solution of the present invention has the following advantages:

[0019] 1. The laparoscopic separation device provided by the present invention comprises: a support member; at least two elastic separation members, at the end of which the support member is installed, a plurality of elastic separation members are close to each other at one end away from the support member so that the plurality of elastic separation members are arranged in a conical or duckbill shape; a moving component, which is installed on the support member, a contact member is installed at one end of the moving component, and the contact member extends between the plurality of elastic separation members; the contact member has a first state in which the end is separated when driven by the moving component to move toward the elastic separation member so that the plurality of elastic separation members are close to each other, and a second state in which the end is closed under the action of its own elasticity when driven by the moving component to move away from the elastic separation member so that the plurality of elastic separation members are close to each other.

[0020] When using a laparoscopic separation device to perform surgery to separate human tissues, the movement component drives the abutting member to move cyclically towards and away from the elastic separation member. When the abutting member moves towards the elastic separation member, the multiple elastic separation members separate under the abutting action of the abutting member. When the abutting member moves away from the elastic separation member, the multiple elastic separation members automatically close under their own elastic force. By the cyclic movement of the abutting member, the multiple elastic separation members are continuously expanded and closed. The support member drives the elastic separation member to approach the human tissue, and the human tissue can be automatically separated under the expansion action of the elastic separation member. During the separation process of human tissues, the elastic separation member only supports the human tissue and does not perform operations such as cutting, stabbing, or piercing on the human tissue, and does not cause additional harm to the human tissue except separating the human tissue. Moreover, the movement speed of the reciprocating movement of the abutting member can be adjusted and controlled by the movement speed and frequency of the movement component, without manual operation, which can greatly improve the surgical efficiency and accuracy of the human tissue separation surgery. This makes the separation surgery of human tissues safer and faster, and while improving the surgical efficiency, it can greatly reduce the occurrence of postoperative complications of patients caused by additional harm to human tissues.

[0021] 2. For the laparoscopic separation device provided by the present invention, the movement component includes a driving member, a driving turntable, and a driving rod. The driving turntable is installed at the output end of the driving member. One end of the driving rod is installed with an abutting member, and the other end is provided with a pair of driving support rods in parallel. The driving turntable is arranged between the pair of driving support rods. A plurality of driving teeth are arranged at intervals along the axial direction on the driving support rods, and a plurality of driving columns are arranged at intervals along the circumferential direction in the fan-shaped area on the driving turntable. The central angle of the fan-shaped area is less than 180°. When the driving turntable rotates, the driving columns cooperate with the driving teeth on different driving support rods respectively to make the driving support rods move cyclically. When the laparoscopic separation device works, the driving member drives the driving turntable to rotate. The multiple driving columns on the driving turntable first cooperate with the multiple driving teeth of a driving support rod, and then drive the driving rod to move forward in one direction. Since the driving columns on the driving turntable are arranged at intervals in the fan-shaped area, when the driving turntable rotates through the angle corresponding to the fan shape, the driving teeth on this driving support rod can no longer contact the driving columns, and at the same time, the driving columns begin to cooperate with the multiple driving teeth on another driving support rod. Since the two driving support rods are parallel and the driving turntable is arranged between the pair of driving support rods, the driving columns drive the latter driving support rod to move in the opposite direction, and then drive the driving rod to start moving in the reverse direction. By driving the driving turntable to rotate in a single direction by a driving member, the bidirectional reciprocating movement of the driving rod can be realized.

[0022] 3. The laparoscopic separation device provided by the present invention has a separation head at one end of the elastic separation parts close to each other, and the multiple separation heads are parallel to each other and extend along the axial direction of the support part. The human tissue is separated by spreading the multiple separation heads arranged in parallel, and the separation heads are made of soft materials to reduce damage to the separated tissue. The conical tip is prevented from puncturing the human tissue, further improving the safety of the human tissue separation operation and reducing unnecessary damage to the human tissue.

[0023] 4. The laparoscopic separation device provided by the present invention has an elastic connector at one end where the multiple elastic separation pieces are close to each other, and the elastic connector connects the ends where the multiple elastic separation pieces are close to each other into an integrated structure. The tapered end of the elastic separation piece is completely closed by the elastic connector to form a blunt head, which can prevent the end of the elastic separation piece with a smaller area from directly contacting the human tissue and causing puncture to the human tissue. When the separation device is working, the tissue is not clamped during the closing process, which reduces the damage to the human tissue during the operation, improves the safety of the operation, and reduces the occurrence of postoperative complications in patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a schematic structural diagram of a laparoscopic separation device provided in a first embodiment of the present invention.

[0026] Figure 2 It is a schematic structural diagram of the elastic separation member provided in the first embodiment of the present invention.

[0027] Figure 3 It is a front structural schematic diagram of the motion component provided in an embodiment of the present invention.

[0028] Figure 4 It is a schematic diagram of the back structure of the motion component provided in the embodiment of the present invention.

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the motion component provided in the embodiment of the present invention.

[0030] Figure 6 This is a schematic structural diagram of a laparoscopic separation device provided in a second embodiment of the present invention.

[0031] Description of the reference numerals: 1, support member; 2, elastic separation member; 3, rotating shaft; 4, abutting member; 5, drive motor; 6, drive turntable; 7, drive rod; 8, battery; 9, drive support rod; 10, drive gear; 11, drive column; 12, mounting plate; 13, chute; 14, speed control button; 15, separation head; 16, elastic connection member. Detailed implementation manners

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] As Figures 1 to 6 shown, a laparoscopic separation device provided in this embodiment includes a support member 1, a pair of elastic separation members 2, and a motion assembly.

[0037] The support member 1 is a tubular structure, and two sheet-like elastic separation members 2 are respectively rotatably mounted at the tail end of the tubular structure through rotating shafts 3. The ends of the two elastic separation members 2 away from the support member 1 approach each other so that the two elastic separation members 2 are arranged in a duckbill shape. In this embodiment, the elastic separation member 2 is made of a medical rubber material, and its hardness can be adjusted during production according to actual needs. The elastic separation member 2 can also be made of silica gel or medical metal materials.

[0038] The motion assembly is mounted on the support member 1, and an abutting member 4 is mounted at one end of the motion assembly, and the abutting member 4 extends between a pair of elastic separation members 2. The abutting member 4 is a medical silica gel block in the shape of a sphere or a hemisphere or a cone or a polyhedron. In this embodiment, the abutting member 4 is a spherical medical silica gel block. The abutting member 4 has a first state in which it moves toward the elastic separation member 2 under the drive of the motion assembly to separate the mutually approaching ends of the two elastic separation members 2, and a second state in which it moves away from the elastic separation member 2 under the drive of the motion assembly to cause the mutually approaching ends of the two elastic separation members 2 to close under their own elastic action. Specifically, the motion assembly includes a drive motor 5 as a driving member, a drive turntable 6, and a drive rod 7. A battery 8 is mounted on the support member 1 to supply power to the drive motor 5. For the convenience of replacing the battery 8, the battery 8 is snap-fitted and mounted at the tail of the support member 1. It can be a rechargeable battery or a button battery or a conventional battery. The drive turntable 6 is mounted at the output end of the drive motor 5, the abutting member 4 is mounted at one end of the drive rod 7, a pair of drive support rods 9 are arranged in parallel at the other end of the drive rod 7, the drive turntable 6 is disposed between the pair of drive support rods 9, a plurality of drive teeth 10 are arranged at intervals along the axial direction on the drive support rods 9, a plurality of drive columns 11 are arranged at intervals along the circumferential direction in the fan-shaped area on the drive turntable 6, the central angle of the fan-shaped area is less than 180°, when the drive turntable 6 rotates, the drive columns 11 respectively cooperate with the drive teeth 10 on different drive support rods 9 to cause the drive support rods 9 to move reciprocally. To ensure the stability of the movement process of the drive rod 7, the motion assembly further includes a mounting plate 12, the mounting plate 12 is fixedly connected to the support member 1, a pair of convex blocks are arranged in parallel on the mounting plate 12, a chute 13 is provided on each convex block, the pair of chutes 13 face each other, and the drive support rods 9 are in sliding fit with the chutes 13 one by one.

[0039] To facilitate the adjustment of the separation efficiency of the separation device, a speed adjustment button 14 is mounted on the support member 1, and the speed adjustment button 14 is electrically connected to the drive motor 5 to adjust the output power of the drive motor 5, adjust the rotation speed of the drive disc, and thus change the movement frequency of the drive rod 7 driving the abutting member 4 to move reciprocally, so as to change the movement frequency of the pair of elastic separation members 2 to open and close to adjust the separation efficiency of the separation device.

[0040] To avoid the end of the conical elastic separation member 2 from scratching the patient's tissue, separation heads 15 are provided at one end where a pair of elastic separation members 2 are close to each other. The two separation heads 15 are parallel to each other and both extend along the axial direction of the support member 1, so that the end of the elastic separation member 2 is in a duckbill shape. An elastic connecting member 16 is provided at one end where a pair of elastic separation members 2 are close to each other, and the elastic connecting member connects the ends of the separation heads 15 close to each other into an integral structure. The elastic connecting member 16 is a rubber film. When the separation device works, it does not clamp the tissue during the closing process, reducing the damage to human tissue during the operation.

[0041] When the laparoscopic separation device is working, the driving motor 5 drives the driving turntable 6 to rotate. Multiple driving posts 11 on the driving turntable 6 first cooperate with multiple driving teeth 10 of a driving support rod 9. The driving support rod 9 slides along the sliding groove 13, and then drives the driving rod 7 to move forward in one direction. Since the driving posts 11 on the driving turntable 6 are arranged at intervals in the fan-shaped area, when the driving turntable 6 rotates through the angle corresponding to the fan shape, the driving teeth 10 on this driving support rod 9 can no longer contact the driving posts 11. At the same time, the driving posts 11 start to cooperate with multiple driving teeth 10 on another driving support rod 9. Since the two driving support rods 9 are parallel and the driving turntable 6 is arranged between the pair of driving support rods 9, the driving posts 11 drive the latter driving support rod 9 to move in the opposite direction, and then drive the driving rod 7 to start moving in the reverse direction. By driving the driving turntable 6 to rotate in one direction by a driving motor 5, the reciprocating movement of the driving rod 7 can be realized. When using the laparoscopic separation device to perform an operation to separate human tissue, the moving component drives the abutting member 4 to move towards and away from the elastic separation member 2 in a reciprocating manner. When the abutting member 4 moves towards the elastic separation member 2, the multiple elastic separation members 2 separate under the abutting action of the abutting member 4. When the abutting member 4 moves away from the elastic separation member 2, the multiple elastic separation members 2 can automatically close under the action of their own elastic force, the extrusion of the external human tissue, and the elastic action of the elastic connecting member 16. Through the reciprocating movement of the abutting member 4, the multiple elastic separation members 2 are continuously opened and closed. The elastic separation member 2 is driven by the support member 1 to approach the human tissue, and the human tissue can be automatically separated under the action of the opening of the elastic separation member 2. During the closing process, the tissue is not clamped. During the separation process of the human tissue, the elastic separation member 2 only supports the human tissue and will not perform operations such as cutting, squeezing, and clamping on the human tissue, and will not cause additional harm to the human tissue except separating the human tissue. Moreover, the movement speed of the reciprocating movement of the abutting member 4 can be adjusted and controlled through the movement power of the moving component, without manual operation, which can greatly improve the operation efficiency and accuracy of the human tissue separation operation. It makes the separation operation of human tissue safer and faster, and can greatly reduce the occurrence of postoperative complications of patients caused by additional damage to human tissue while improving the operation efficiency.

[0042] As an alternative embodiment, no elastic connecting member 16 is provided between the elastic separating members 2, and the separating heads 15 at the ends of the elastic separating members 2 are separated from each other to increase the maximum distance that can be separated between the separating heads 15 of the elastic separating members 2, improve the separation efficiency, and the elastic separating members 2 are directly connected to the supporting member 1 without providing a rotating shaft, so that a pair of elastic separating members 2 can automatically reset under the action of their own elastic force after separating from each other.

[0043] As an alternative embodiment, no elastic connecting member 16 is provided between the elastic separating members 2, and the separating heads 15 at the ends of the elastic separating members 2 are separated from each other to increase the maximum distance that can be separated between the separating heads 15 of the elastic separating members 2, improve the separation efficiency, and the elastic separating member and the supporting member are connected through an elastic joint, and a pair of elastic separating members 2 can automatically reset under the action of the reset elastic force of the elastic joint after separating from each other.

[0044] As an alternative embodiment, a plurality of elastic separating members 2 are uniformly arranged along the circumferential direction of the supporting member 1, and one ends of the plurality of elastic separating members 2 away from the supporting member 1 are close to each other so that the plurality of elastic separating members 2 are arranged in a conical shape.

[0045] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the embodiments. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the embodiments here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A laparoscopic separation device, characterized in that, it includes: a support member (1); a pair of elastic separation members (2), installed at the end of the support member (1), the elastic separation members (2) are both sheet-like structures, and the ends of the pair of elastic separation members (2) away from the support member (1) are close to each other so that the pair of elastic separation members (2) are arranged in a conical or duckbill shape; a motion assembly, installed on the support member (1), one end of the motion assembly is installed with an abutting member (4), the abutting member (4) is a medical silicone block in the shape of a sphere or a hemisphere or a cone or a polyhedron, and the abutting member (4) extends between the pair of elastic separation members (2); the abutting member (4) has a first state in which it moves towards the elastic separation members (2) under the drive of the motion assembly to separate the ends of the pair of elastic separation members (2) that are close to each other, and a second state in which it moves away from the elastic separation members (2) under the drive of the motion assembly to close the ends of the pair of elastic separation members (2) that are close to each other under their own elasticity; the motion assembly includes a driving member, a driving turntable (6) and a driving rod (7), the driving turntable (6) is installed at the output end of the driving member, one end of the driving rod (7) is installed with the abutting member (4), and a pair of driving support rods (9) are arranged in parallel at the other end. The driving turntable (6) is arranged between the pair of driving support rods (9). A plurality of driving teeth (10) are arranged at intervals along the axial direction on the driving support rods (9), and a plurality of driving posts (11) are arranged at intervals along the circumferential direction in a fan-shaped area on the driving turntable (6). The central angle of the fan-shaped area is less than 180°. When the driving turntable (6) rotates, the driving posts (11) cooperate with the driving teeth (10) on different driving support rods (9) respectively to make the driving support rods (9) move reciprocally.

2. The laparoscopic separation device according to claim 1, characterized in that, the motion assembly further includes a mounting plate (12), a pair of sliding grooves (13) are arranged in parallel on the mounting plate (12), the pair of sliding grooves (13) face each other, and the driving support rods (9) and the sliding grooves (13) are in one-to-one sliding fit.

3. The laparoscopic separation device according to claim 1 or 2, characterized in that, a speed adjustment button (14) is installed on the support member (1), and the speed adjustment button (14) is electrically connected to the driving member.

4. The laparoscopic separation device according to claim 1 or 2, characterized in that, separation heads (15) are arranged at the ends of the pair of elastic separation members (2) that are close to each other, and the pair of separation heads (15) are parallel to each other and both extend along the axial direction of the support member (1).

5. The laparoscopic separation device according to claim 1 or 2, characterized in that, an elastic connecting member (16) is arranged at the ends of the pair of elastic separation members (2) that are close to each other, and the elastic connecting member (16) connects the ends of the pair of elastic separation members (2) that are close to each other into an integral structure.

6. The laparoscopic separation device according to claim 5, characterized in that, The elastic connecting member (16) is a rubber film.

7. The laparoscopic separation device according to claim 5, characterized in that the elastic separation member (2) is rotatably connected to the support member (1) through a rotating shaft (3).

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