A surgical distraction device

Abstract

The utility model relates to medical instrument technical field, concretely relates to a kind of distraction device for surgical operation.The utility model provides a kind of distraction device for surgical operation, including cross bar, two vertical rods, distraction claw mechanism, light source and locking mechanism;At least one distraction claw mechanism and at least one light source are installed on each of the vertical rod, two the vertical rod sliding installation is in the cross bar, and can be moved along the length direction of the cross bar;The locking mechanism is used to lock the vertical rod on the cross bar, when the locking mechanism is in locking state, the vertical rod is locked on the cross bar by the locking mechanism.Use the distraction device for surgical operation to expand surgical field more convenient, reduce the workload of medical staff, without repeatedly pulling, avoid the problem that the unnecessary damage to surrounding tissue is caused to the adjustment position of retractor due to repeatedly pulling.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a surgical dissector. Background Technology

[0002] Surgical procedures, often simply called surgery or incisions, are used to treat or diagnose diseases, such as removing diseased tissue, repairing damage, or transplanting organs. During surgery, an incision is made to access the internal organs. To improve the surgical field, after the incision is made, depending on the surgical site and the area to be exposed, medical staff place retractors on both sides of the incision. Appropriate force is then applied to insert the retractors into the tissue on either side of the incision. Excessive force should be avoided to prevent tearing the tissue. Finally, the medical staff holds the handle of the retractor and steadily pulls it according to the progress of the surgery and the surgeon's instructions.

[0003] Because the traction hooks require continuous assistance from medical staff, the workload for medical staff is heavy. Furthermore, since medical staff cannot maintain a stable position with their hands, they often need to repeatedly pull the hooks to adjust their position, causing unnecessary damage to surrounding tissues. Utility Model Content

[0004] The problem this invention aims to solve is that medical staff have to continuously assist in traction with the hooks, resulting in a heavy workload for them. Furthermore, because medical staff cannot maintain a stable position with their hands, they often need to repeatedly pull the hooks to adjust their position, causing unnecessary damage to surrounding tissues.

[0005] Technical solution

[0006] A surgical retraction device includes a crossbar, two longitudinal bars, a retraction claw mechanism, a light source, and a locking mechanism; each of the longitudinal bars is equipped with at least one retraction claw mechanism and at least one light source.

[0007] The two longitudinal bars are slidably mounted on the crossbar and can move along the length of the crossbar;

[0008] The locking mechanism is used to lock the vertical bar to the horizontal bar. When the locking mechanism is in the locked state, the vertical bar is locked to the horizontal bar by the locking mechanism; when the locking mechanism is in the unlocked state, the vertical bar can slide relative to the horizontal bar.

[0009] According to one embodiment of the present invention, the spreading claw mechanism includes a fixed plate and a plurality of spreading claws. The plurality of spreading claws are arranged on the lower surface of the fixed plate, and the fixed plate is fixed to the lower surface of the longitudinal rod. The arrangement direction of the plurality of spreading claws is the same as the length direction of the longitudinal rod.

[0010] According to one embodiment of the present invention, the crossbar has a first side and a second side opposite to each other, a slot is provided on the crossbar, the slot extends from the first side to the second side, a strip groove is provided on the top surface of the crossbar, the strip groove is connected to the slot, and the length direction of the strip groove is the same as the length direction of the crossbar.

[0011] The bottom surface of one end of the longitudinal rod is provided with a vertical plate perpendicular to the longitudinal rod, and a horizontally arranged insert plate is provided on the vertical plate. The insert plate is parallel to the longitudinal rod and is adapted to the slot.

[0012] According to one embodiment of the present invention, the locking mechanism includes a locking bolt and a locking head. The locking bolt is fixed to the insert plate and passes through the strip groove. The locking head is threadedly connected to the locking bolt and is higher than the longitudinal rod.

[0013] According to one embodiment of the present invention, the locking head includes a locking part and a handle connected together. The locking part is annular in shape, and its inner wall is provided with a threaded groove adapted to the locking bolt.

[0014] According to one embodiment of the present invention, one end of the spreading claw that contacts the tissue is arc-shaped, and the tip of the spreading claw is rounded.

[0015] According to one embodiment of the present invention, the light source includes a power supply and a light source head, wherein the power supply and the light source head are connected by a universal joint so that the angle of the light source head is adjustable.

[0016] According to one embodiment of the present invention, at least one fixing bolt is vertically installed on the top of the fixing plate, the longitudinal rod is provided with a circular hole for the fixing bolt to pass through, and at least one nut is threadedly connected to the top of the fixing bolt.

[0017] According to one embodiment of the present invention, each of the longitudinal rods is equipped with a plurality of the spreading claw mechanisms, the plurality of spreading claw mechanisms are arranged along the length direction of the longitudinal rod, and at least one light source is provided between any two adjacent spreading claw mechanisms.

[0018] The beneficial effects of this utility model are:

[0019] When using this surgical retractor to expand the surgical field, first place the retractor on the patient's body, with the two longitudinal bars positioned on either side of the incision. Then, the medical staff pushes the two longitudinal bars closer together, adjusting them to a distance slightly closer than the actual open state of the incision. Appropriate force is then applied to insert the retractor mechanism into the tissue on either side of the incision. Finally, depending on the situation, the two longitudinal bars are moved outwards, moving them away from each other to pull apart the tissue on either side of the incision, thereby exposing the surgical field. Finally, the locking mechanism is adjusted to the locked position, locking the two longitudinal bars to the horizontal bar. During this process, the light source continuously illuminates the inside of the incision to provide illumination, facilitating the surgical procedure.

[0020] Compared to the previous method of using retractors to expand the surgical field, using this surgical retractor to expand the surgical field is more convenient, reduces the workload of medical staff, eliminates the need for repeated traction, and avoids the problem of unnecessary damage to surrounding tissues caused by repeatedly pulling and adjusting the position of the retractor. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a top view provided for Embodiment 1 of the present utility model;

[0023] Figure 2 A front view provided for Embodiment 1 of this utility model;

[0024] Figure 3 A cross-sectional view of the connection position between the horizontal bar and the vertical bar provided in Embodiment 1 of this utility model;

[0025] Figure 4 This is a structural diagram of the longitudinal rod, the spreading claw mechanism, and the light source provided in Embodiment 1 of this utility model;

[0026] Figure 5 This is a top view provided for Embodiment 2 of the present utility model;

[0027] Figure 6 This is a structural diagram of the longitudinal rod and the second transverse movement drive mechanism provided in Embodiment 2 of this utility model.

[0028] Icons: 1. Horizontal bar; 101. Strip groove; 2. Vertical bar; 201. Insert plate; 3. Spreading claw mechanism; 301. Fixing plate; 302. Spreading claw; 303. Fixing bolt; 4. Light source; 401. Universal joint; 402. Light source head; 5. Locking head; 6. Locking bolt; 7. Nut; 9. Sliding block; 10. First gear; 11. Second gear; 12. Bearing seat; 13. Turntable; 14. First screw; 15. Second screw. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Example 1:

[0031] Embodiment 1 of this utility model provides a surgical retraction device, including a crossbar 1, two longitudinal bars 2, a retraction claw mechanism 3, a light source 4, and a locking mechanism; each longitudinal bar 2 is equipped with at least one retraction claw mechanism 3 and at least one light source 4.

[0032] Two vertical bars 2 are slidably mounted on the horizontal bar 1 and can move along the length of the horizontal bar 1;

[0033] The locking mechanism is used to lock the vertical rod 2 onto the horizontal rod 1. When the locking mechanism is in the locked state, the vertical rod 2 is locked onto the horizontal rod 1. When the locking mechanism is in the unlocked state, the vertical rod 2 can slide relative to the horizontal rod 1.

[0034] When using this surgical retractor to expand the surgical field, first place the retractor on the patient's body so that the two longitudinal rods 2 are positioned on either side of the incision. Then, the medical staff pushes the two longitudinal rods 2 closer together, adjusting them to a distance slightly closer than the actual open state of the incision. Appropriate force is then applied to insert the retractor claw mechanism 3 into the tissue on both sides of the incision. Finally, depending on the actual situation, the two longitudinal rods 2 are moved outwards, moving them away from each other to pull apart the tissue on both sides of the incision, thereby exposing the surgical field. Finally, the locking mechanism is adjusted to the locked position, so that the two longitudinal rods 2 are locked to the crossbar 1. At this time, the light source 4 continuously illuminates the inside of the incision to provide light, facilitating the operation for the medical staff.

[0035] Compared to the previous method of using retractors to expand the surgical field, using this surgical retractor to expand the surgical field is much more convenient, reducing the workload of medical staff. It eliminates the need for repeated traction and avoids unnecessary damage to surrounding tissues caused by repeatedly pulling and adjusting the retractor's position. Moreover, the light source 4 provides continuous illumination during the operation, facilitating the operation for medical staff.

[0036] Figure 1 This is a top view of the surgical retraction device. The two longitudinal bars 2 are arranged in the left-right direction of the device. A slot is provided on the front of the crossbar 1, which extends from the front of the crossbar 1 towards its back. Furthermore, a strip groove 101 is provided on the top surface of the crossbar 1. The strip groove 101 is connected to the slot, and the length direction of the strip groove 101 is the same as the length direction of the crossbar 1.

[0037] like Figure 3 and Figure 4 The bottom surface of the front end of the longitudinal rod 2 is provided with a vertical plate perpendicular to the longitudinal rod 2. The vertical plate is provided with a horizontally arranged insert plate 201, which is parallel to the longitudinal rod 2 and is adapted to the slot.

[0038] In this embodiment, the insert plate 201 at the front end of the vertical bar 2 can be inserted into the slot of the horizontal bar 1 to achieve the following: Figure 3 The state shown is such that the distance between the lower surface of the vertical bar 2 and the top surface of the insert plate 201 is the same as the distance between the top surface of the horizontal bar 1 and the inner top wall of the slot.

[0039] In this embodiment, the locking mechanism includes a locking bolt 6 and a locking head 5, such as... Figure 3 As shown, the locking bolt 6 is fixed to the insert plate 201 and passes through the strip groove 101. The locking head 5 is threadedly connected to the locking bolt 6 and is higher than the longitudinal rod 2. Thus, when it is necessary to lock the longitudinal rod 2, simply tighten the locking head 5 to press the longitudinal rod 2 tightly between the upper part of the crossbar 1 and the locking head 5. When it is necessary to unlock, simply turn the locking head 5 in the opposite direction to loosen it, making it convenient to use.

[0040] It should be noted that when connecting the crossbar 1 and the vertical bar 2, first insert the insert plate 201 at the front end of the vertical bar 2 into the slot on the front of the crossbar 1. Then, apply strong adhesive to the bottom of the locking bolt 6, and insert the locking bolt 6 into the round hole at the top of the vertical bar 2. The locking bolt 6 further passes through the strip groove 101 at the top of the crossbar 1 until the bottom surface of the locking bolt 6 is in close contact with the upper surface of the insert plate 201. After the adhesive has solidified, the locking bolt 6 is fixed to the insert plate 201. Moreover, due to the blocking effect of the locking bolt 6, the vertical bar 2 can slide stably on the crossbar 1, and the crossbar 1 and the vertical bar 2 will not separate.

[0041] In this embodiment, as Figure 1As shown, the locking head 5 includes an integrally formed locking part and a handle. The locking part is annular, and its inner wall has a threaded groove that matches the locking bolt 6. The handle is elongated to allow medical personnel to easily rotate the locking head 5. Alternatively, the locking head 5 can also be configured in other shapes that facilitate rotation by medical personnel.

[0042] In this embodiment, as Figure 4 As shown, the spreading claw mechanism 3 includes a fixed plate 301 and multiple spreading claws 302. The fixed plate 301 is fixedly installed on the lower surface of the longitudinal rod 2, and the length direction of the fixed plate 301 is consistent with the length direction of the longitudinal rod 2. The multiple spreading claws 302 are arranged along the length direction of the fixed plate 301 on the lower surface of the fixed plate 301.

[0043] Furthermore, the fixed end of the retracting claw 302 is fixedly connected to the fixing plate 301. The end of the retracting claw 302 that contacts the tissue is arc-shaped so that it can exert a certain force to open the tissue when it is retracted. The tip of the retracting claw 302 is blunt to avoid damaging the tissue near the incision. Of course, the retracting claw can also be set to other shapes, as long as it can play the role of opening the incision.

[0044] As a specific embodiment, such as Figure 4 As shown, a vertically arranged fixing bolt 303 is fixedly installed on the upper surface of the fixing plate 301, and a round hole is provided on the longitudinal rod 2 for the fixing bolt 303 to pass through. When installing the spreading claw mechanism 3, the spreading claw mechanism 3 is placed below the longitudinal rod 2, and then the fixing bolt 303 at the top of the fixing plate 301 is passed through the round hole on the longitudinal rod 2. Finally, the nut 7 is screwed on the top of the fixing bolt 303 and tightened.

[0045] It should be noted that there is no specific limit to the number of the spreading claw mechanism 3; it should be determined based on the length of the longitudinal rod 2. Furthermore, the spacing between two adjacent spreading claw mechanisms 3 at the bottom of the longitudinal rod 2 can be flexibly adjusted according to actual conditions. There is also no specific limit to the number of spreading claws 302 installed on each fixed plate 301; any reasonable number will suffice.

[0046] As a specific embodiment, such as Figure 1 As shown, multiple opening claw mechanisms 3 are installed on each longitudinal rod 2. The multiple opening claw mechanisms 3 are arranged along the length direction of the longitudinal rod 2, and at least one light source 4 is provided between any two adjacent opening claw mechanisms 3.

[0047] As a preferred embodiment, such as Figure 4As shown, the light source 4 includes a power supply 403, a universal joint 401, and a light source head 402 connected in sequence. The universal joint 401 allows for easy adjustment of the direction of the light source 4 during surgery. The light source 4 can be powered by an LED driver, which provides stable current and voltage to ensure stable operation of the light source. The light source head 402 can also be powered by an LED. The light source head 402 consists of a chip, leads, packaging materials, and a housing. The chip is the core component of the light source and is responsible for generating electroluminescence.

[0048] The universal joint 401 can be either a ball-cage type universal joint or a cross-type universal joint, preferably a ball-cage type universal joint. The ball-cage type universal joint has a large angle compensation capability, which can realize the flexible adjustment of the light source 4 in multiple directions.

[0049] Example 2:

[0050] Embodiment 2 of this utility model provides another surgical retraction device, such as... Figure 5 and Figure 6 As shown, it includes a horizontal bar 1, two vertical bars 2, a spreading claw mechanism 3, a light source 4, and a transverse drive mechanism. Each vertical bar 2 is equipped with multiple spreading claw mechanisms 3 and multiple light sources 4. The two vertical bars 2 are slidably mounted on the horizontal bar 1 and can move along the length of the horizontal bar 1. The transverse drive mechanism is used to drive the vertical bars 2 to move along the length of the horizontal bar 1.

[0051] It should be clear that the spreading claw mechanism 3 and the light source 4 in this embodiment are exactly the same as those in the first embodiment above, and will not be described again here.

[0052] The difference from Embodiment 1 above is that:

[0053] In this embodiment, the top of the crossbar 1 has a long rectangular groove, and there is a notch on each of the left and right sides of the crossbar 1. There is a certain distance between the left and right sides of the rectangular groove and the two notches, that is, the rectangular groove and the notches are not connected. The vertical bar 2 is in the shape of a long plate, and a sliding block 9 is fixedly installed on the lower surface of the front end of each vertical bar 2.

[0054] In a preferred embodiment, two transverse drive mechanisms are provided. The two transverse drive mechanisms are used to drive the two longitudinal rods 2 to move along the length direction of the transverse rod 1. The transverse drive mechanism includes a threaded rod, a first gear 10, a second gear 11, and a turntable 13.

[0055] For ease of description, the two lateral movement drive mechanisms are named the first lateral movement drive mechanism and the second lateral movement drive mechanism, wherein the first lateral movement drive mechanism is used to drive... Figure 5 The left vertical rod 2 moves, and the second transverse drive mechanism is used to drive it. Figure 5The right-hand longitudinal rod 2 moves. Since the first and second transverse drive mechanisms have identical structures, the following only addresses... Figure 5 The second lateral movement drive mechanism on the right side will be introduced.

[0056] The second transverse drive mechanism includes a second screw 15, a first gear 10, a second gear 11, and a turntable 13. Two fixed seats are fixedly installed in the middle of the rectangular groove. The left end of the second screw 15 is rotatably connected to the fixed seat on the right side of the rectangular groove, and the right end of the second screw 15 is rotatably connected to the inner wall of the right side of the rectangular groove. The first gear 10 is fixedly installed on the right end of the second screw 15 and is located in the rectangular groove. Two bearing seats 12 are fixedly installed on the right side of the upper surface of the crossbar 1, and the two bearing seats 12 are arranged along the length of the crossbar 1. The second gear 11 is rotatably installed between the two bearing seats 12, and the first gear 10 and the second gear 11 mesh. A rotating shaft is fixedly installed on the right side of the second gear 11, and the turntable 13 is connected to the end of the rotating shaft away from the second gear 11. Figure 5 The sliding block 9 on the lower surface of the right vertical rod 2 is screwed to the second screw 15, and the front and back of the sliding block 9 are attached to the inner wall of the rectangular groove.

[0057] Thus, by rotating the turntable 13, the turntable 13 drives the second gear 11 to rotate. Since the first gear 10 and the second gear 11 mesh, the first gear 10 can be driven to rotate. The rotation of the first gear 10 drives the second screw 15 to rotate around its own axis, thereby driving the sliding block 9 to drive the longitudinal rod 2 to move left and right along the rectangular groove.

[0058] The aforementioned first transverse drive mechanism includes a first screw 14, a first gear 10, a second gear 11, and a turntable 13. The right end of the first screw 14 is rotatably connected to a fixed seat near the left side of the rectangular groove, and the left end of the first screw 14 is rotatably connected to the inner wall of the left side of the rectangular groove. Figure 5 The sliding block 9 of the vertical rod 2 located on the left is threadedly connected to the first screw 14.

[0059] This allows medical staff to flexibly adjust the position of the two vertical bars 2 on the horizontal bar 1, so as to flexibly pull the incision.

[0060] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0061] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A surgical retractor, characterized in that, It includes a crossbar (1), two vertical bars (2), a spreading claw mechanism (3), a light source (4), and a locking mechanism; each of the vertical bars (2) is equipped with at least one spreading claw mechanism (3) and at least one light source (4). The two longitudinal bars (2) are slidably mounted on the transverse bar (1) and can move along the length of the transverse bar (1); The locking mechanism is used to lock the vertical rod (2) onto the horizontal rod (1). When the locking mechanism is in the locked state, the vertical rod (2) is locked onto the horizontal rod (1) by the locking mechanism. When the locking mechanism is in the unlocked state, the vertical rod (2) can slide relative to the horizontal rod (1).

2. The surgical retractor according to claim 1, characterized in that, The spreading claw mechanism (3) includes a fixed plate (301) and a plurality of spreading claws (302). The plurality of spreading claws (302) are arranged on the lower surface of the fixed plate (301). The fixed plate (301) is fixed to the lower surface of the longitudinal rod (2). The arrangement direction of the plurality of spreading claws (302) is the same as the length direction of the longitudinal rod (2).

3. The surgical retractor according to claim 1, characterized in that, The crossbar (1) has a first side and a second side opposite to each other. A slot is provided on the crossbar (1). The slot extends from the first side to the second side. A strip groove (101) is provided on the top surface of the crossbar (1). The strip groove (101) is connected to the slot. The length direction of the strip groove (101) is the same as the length direction of the crossbar (1). The bottom surface of one end of the vertical rod (2) is provided with a vertical plate perpendicular to the vertical rod (2), and a horizontally arranged insert plate (201) is provided on the vertical plate. The insert plate (201) is parallel to the vertical rod (2) and is adapted to the slot.

4. A surgical retractor according to claim 3, characterized in that, The locking mechanism includes a locking bolt (6) and a locking head (5). The locking bolt (6) is fixed on the insert plate (201) and passes through the strip groove (101). The locking head (5) is threadedly connected to the locking bolt (6) and is higher than the longitudinal rod (2).

5. A surgical retractor according to claim 4, characterized in that, The locking head (5) includes a locking part and a handle connected together. The locking part is annular and its inner wall is provided with a threaded groove that is compatible with the locking bolt (6).

6. A surgical retractor according to claim 2, characterized in that, The end of the spreading claw (302) that contacts the tissue is arc-shaped, and the tip of the spreading claw (302) is blunt.

7. A surgical retractor according to claim 1, characterized in that, The light source (4) includes a power supply (403) and a light source head (402). The power supply (403) and the light source head (402) are connected by a universal joint (401) so that the angle of the light source head (402) is adjustable.

8. A surgical retractor according to claim 2, characterized in that, At least one fixing bolt (303) is vertically installed on the top of the fixing plate (301), and the longitudinal rod (2) is provided with a round hole for the fixing bolt (303) to pass through. At least one nut (7) is threadedly connected to the top of the fixing bolt (303).

9. A surgical retractor according to claim 1, characterized in that, Each of the longitudinal rods (2) is equipped with a plurality of the spreading claw mechanisms (3), which are arranged along the length of the longitudinal rod (2). At least one light source (4) is provided between any two adjacent spreading claw mechanisms (3).

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