CN106618648A - Minitype universal surgical drag hook - Google Patents

Abstract

The invention discloses a miniature universal surgical retractor, comprising a support base and a support rod located on the support base, a swingable retractor connecting rod is arranged on the support rod, and the end of the retractor rod is arranged A hook body capable of universal rotation. The invention has a compact structure, improves the convenience in micro-incision operation, ensures the effective and smooth operation of micro-incision operation, and is safe and reliable.

Description

Micro Universal Surgical Retractor

technical field

The invention relates to a surgical retractor, which belongs to the technical field of medical instruments.

Background technique

At present, in medical clinical operations, it is often necessary to retract the tissue around the incision to expose the tissue in the incision, which is convenient for exploration and operation during surgery. In the past technology, assistants were required to use manual hands to pull the tissue apart, wasting scarce medical resources.

However, for different micro-surgeries, correspondingly, the parts that need to expand the surgical field of view are different. The existing retractors that open and close at a certain angle cannot flexibly respond to traction according to different positions during the operation. Open to form the optimal surgical field of view.

Especially when the operation is carried out, when the operator's intention changes and the position and angle of the draw hook need to be adjusted, this fixed retractor must be completely removed from the original pulling position and reinstalled after changing the angle. very inconvenient.

In addition, using artificial hands or hand-held retractors, although the position and angle of the retractors can be adjusted in time, it consumes medical assistants and increases labor intensity.

At the same time, the space for some surgical operations is inherently very narrow. It is difficult for assistants and surgeons to stand in a row and resist each other. It is easy to cause insufficient space. Tissue Exposure Effects.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a miniature universal surgical retractor, which has a compact structure, improves the convenience of some special small incision operations, and ensures that small incision operations can be carried out effectively and safely. reliable.

According to the technical solution provided by the present invention, the miniature universal surgical retractor includes a support base and a support rod located on the support base, and a swingable retractor connecting rod is arranged on the support rod, and the retractor connecting rod A hook body capable of universal rotation is provided at the end of the hook.

The hook body includes a hook bar and a first hook and a second hook arranged on the hook bar, the arc direction of the first hook is opposite to the arc direction of the second hook.

The first pull rod is adjacent to the pull rod connecting rod on the pull hook rod, the second pull hook is installed on the telescopic rod at the end of the pull hook rod, and the second pull hook can approach or move away from the first pull hook through the telescopic rod.

The drag hook rod is installed on the end of the drag hook connecting rod through a universal joint, and the drag hook connecting rod is installed on the end of the support rod through a swing connection mechanism.

The swing connection mechanism includes a swing connection shell fixed on the end of the support rod and a swing ball head for connecting with the hook connecting rod, the swing ball head can swing in the swing connection shell, and the swing connection shell A ball head locking pin for locking the swing ball head is arranged on the top.

The swinging ball head is connected with the hook connecting rod through a hook connecting rod length adjustment mechanism. The drag hook connecting rod length adjustment mechanism includes an adjustment housing that allows the drag hook connecting rod to pass through. The drag hook connecting rod is provided with connecting rod teeth. A locking rack cooperating with the connecting rod teeth is hinged on the body, one end of the locking rack is located in the adjustment housing, and is connected to one end of the spring in the adjustment housing, and the other end of the spring is connected to the inner wall of the adjustment housing , the other end of the locking rack is located outside the adjustment housing.

Directly above the support base is provided a mobile support seat that allows the support rod to move in a circle, the mobile support seat is fixedly supported on the support base, and the support rod is provided with a support rod locking pin.

One or more support rods are arranged on the mobile support base.

The lower surface of the support base is provided with an adhesive layer for bonding and fixing.

An approximate technical solution, a miniature universal surgical retractor, includes a support base and a support rod located on the support base, and a swingable retractor connecting rod is arranged on the support rod. A clamp body capable of universal rotation is arranged at the end.

Advantages of the present invention: a support rod is set on the support base, the hook connecting rod can swing relative to the supporting rod through the swing connection mechanism, the drag hook rod is universally rotated relative to the drag hook connecting rod through a universal joint, and the first drag hook in the opposite direction is set on the drag hook rod And the second draw hook, through the swing of the draw hook connecting rod, the rotation of the draw hook rod, the adjustment of the relative distance between the second draw hook and the first draw hook, or the movement of the support rod on the mobile support seat, the desired pulling operation position can be easily found , compact structure, improving the convenience of the operation, ensuring the effective and smooth operation of the operation, safe and reliable.

Description of drawings

Fig. 1 is a kind of implementation structure schematic diagram of the present invention;

Fig. 2 is another kind of implementation structure schematic diagram of the present invention;

Fig. 3 is a schematic diagram of the swing connection mechanism and the drag hook link length adjustment mechanism of the present invention.

Marking description: 1-support base, 2-support rod, 3-hook connecting rod, 4-swing connection mechanism, 5-universal joint, 6-hook rod, 7-first hook, 8-second hook, 9- Mobile support seat, 10-ball head locking pin, 11-support rod locking pin, 12-swing connecting shell, 13-swinging ball head, 14-adjusting shell, 15-locking rack, 16-rack hinged shaft , 17-spring and 18-connecting rod teeth.

detailed description

The present invention will be further described below in conjunction with specific drawings and embodiments.

As shown in Figure 1: in order to improve the convenience in the operation of small incision surgery (such as: arteriovenous fistula, excision of skin vegetation, small incision surgery, etc.), to ensure the effective and smooth operation of the operation, the present invention includes a support base 1 and a The supporting rod 2 on the supporting base 1 is provided with a swingable drag hook connecting rod 3 on the supporting rod 2 , and a drag hook body capable of universal rotation is arranged at the end of the drag hook connecting rod 3 .

Specifically, the support base 1 may be circular or oval, the support rods 2 are vertically distributed on the support base 1 , and the drag hook links 3 can swing at the ends of the support rods 2 . When performing small incision surgery, the support base 1 is placed at the peripheral position of the small incision, and the tissue in the incision can be pulled through the retractor body, thereby exposing the surgical field of view and facilitating the operation of the small incision surgery. Through the swing of the drag hook connecting rod 3 relative to the support rod 2 and the rotation of the drag hook body at the end of the drag rod connecting rod 3 , the operation needs of different operations can be realized. During specific implementation, the lower surface of the support base 1 is provided with an adhesive layer for bonding and fixing. Generally, a protective layer is provided on the adhesive layer. After the protective layer is torn off, the support base 1 can be quickly bonded to the outer periphery of the incision. area, to achieve fast fixation of the support base 1. Of course, in order to realize the fixation of the support base 1, in addition to using an adhesive layer, a strap or the like may also be provided on the support base 1, and the support base 1 may be fixed by connecting the head with the strap or the like.

Further, the hook body includes a hook rod 6 and a first hook 7 and a second hook 8 disposed on the hook rod 6 , the arc direction of the first hook 7 is opposite to that of the second hook 8 .

In the embodiment of the present invention, both the first drag hook 7 and the second drag hook 8 are arc-shaped, the arc direction of the first drag hook 7 is opposite to the arc direction of the second drag hook 8, and the arc direction of the first drag hook 7 points to the support rod 2, so that Utilize the space between the first retractor 7 and the second retractor 8 to realize the pulling apart of skin and other tissues, and maintain the current state. During specific implementation, the first pull rod 7 is adjacent to the pull rod connecting rod 3 on the pull hook rod 6, and the second pull hook 8 is installed on the telescopic rod at the end of the pull hook rod 6, and the second pull hook 8 can be close to or away from the first pull hook through the telescopic rod. Pull hook 7. The first drag hook 7 is adjacent to the junction of the drag hook rod 6 and the drag hook connecting rod 3 on the drag hook rod 6, and the second drag hook 8 is installed on the telescopic rod. The second drag hook 8 is close to or far away from the first drag hook 7, and when the distance between the first drag hook 7 and the second drag hook 8 changes, the adjustment of the pulling distance can be realized. By changing the rod diameter of the telescopic rod, when the distance between the second retractor 8 and the first retractor 7 is adjusted in place, the distance between the second retractor 8 and the first retractor 7 can be kept unchanged, which meets the requirements of the surgical operation.

The drag hook rod 6 is installed on the end of the drag hook connecting rod 3 through the universal joint 5 , and the drag hook connecting rod 3 is installed on the end of the support rod 2 through the swing connection mechanism 4 .

In the embodiment of the present invention, the end of the drag hook rod 6 is installed on the end of the drag hook connecting rod 3 through the universal joint 5, and the drag hook rod 6 can realize the universal rotation relative to the drag hook connecting rod 3 through the universal joint 5. 6 After the rotation, the angle between the first retractor 7 and the second retractor 8 relative to the support rod 2 can be realized to meet the requirements of different surgical operations. After the drag hook rod 6 is rotated in place relative to the drag hook connecting rod 3 through the universal joint 5, the state after the rotation can be maintained through the universal joint 5. It is well known and will not be repeated here.

As shown in FIG. 3 , the swing connection mechanism 4 includes a swing connection shell 12 fixed on the end of the support rod 2 and a swing ball head 13 for connecting with the drag hook connecting rod 3 . The swing connecting shell 12 swings inside, and the ball lock pin 10 for locking the swing ball head 13 is arranged on the swing connecting shell 12 .

In the embodiment of the present invention, the swing connecting shell 12 can be spherical, and the swing connecting shell 12 is provided with a gap, and the swing ball head 13 can pass through the swing connecting shell 12 and rotate in the swing connecting shell 12 through the gap. After the drag hook connecting rod 3 is rotated to a desired position by the swing ball head 13 , the swing ball head 13 and the swing connection shell 12 can maintain the current position state by using the ball head locking pin 10 .

The swing ball head 13 is connected with the drag hook connecting rod 3 through the drag hook connecting rod length adjustment mechanism, the drag hook connecting rod length adjustment mechanism includes an adjustment housing 14 allowing the drag hook connecting rod 3 to pass through, and the drag hook connecting rod 3 is provided with a connecting rod. Rod teeth 18, the adjustment housing 14 is hinged with a locking rack 15 cooperating with the connecting rod teeth 18, one end of the locking rack 15 is located in the adjustment housing 14, and is connected with the spring 17 in the adjustment housing 14 One end of the spring 17 is connected to the inner wall of the adjustment housing 14 , and the other end of the locking rack 15 is located outside the adjustment housing 14 .

In the embodiment of the present invention, the adjustment housing 14 is located directly above the swing connection housing 12, the adjustment housing 14 is located outside the swing connection housing 12, the drag hook connecting rod 3 passes through the adjustment housing 14, and the drag hook connecting rod 3 is located in the adjustment housing The outer wall in 13 is provided with connecting rod tooth 18. The locking rack 15 is hinged on the adjustment housing 14 through the rack hinge shaft 16, one end of the locking rack 15 is located outside the adjustment housing 14, and the other end of the locking rack 15 can engage with the connecting rod teeth 18, when locked When the tooth bar 15 is engaged with the connecting rod teeth 18, the position of the drag hook connecting rod 3 in the adjustment housing 14 can be locked; Free movement inside, when the drag hook connecting rod 3 is adjusted to move, the length of the drag hook connecting rod 3 can be adjusted, that is, the positions of the drag hook rod 6, the first drag hook 7 and the second drag hook 8 can be adjusted. When the locking rack 15 is engaged with the connecting rod teeth 18, the spring 17 can press the locking rack 15 and the connecting rod teeth 18; when the locking rack 15 is separated from the connecting rod teeth 18, the spring 17 can be used to make the locking rack 15 is compressed with connecting rod tooth 18 again.

Further, directly above the support base 1 is provided a mobile support base 9 that allows the support rod 2 to move in a circle, the mobile support base 9 is fixedly supported on the support base 1, and the support rod 2 is provided with a support rod locking pin 11.

In the embodiment of the present invention, the mobile support base 9 is located above the support base 1, the shape of the mobile support base 9 is similar to that of the support base 1, the lower part of the support rod 2 is connected with the mobile support base 9, and can move on the mobile support base 9 , and after moving in place, lock with the mobile support seat 9 by the support rod locking pin 11. Through the movement of the support rod 2 on the mobile support base 9, the required pulling-out position can be found more conveniently.

In addition, the number of support rods 2 on the mobile support base 9 can be one, two or more, and each support rod 2 can move circularly on the mobile support base 9, and the ends of each support rod 2 are There is a pull rod connecting rod 3; but when there are multiple support rods 2 on the mobile support base 9, the drag hook body at the end of each pull rod connecting rod 3 can only be the first drag hook 7 or the second drag hook 8, so as to carry out corresponding cooperation.

In addition, in order to be able to adapt to the needs of different surgical operations, a similar technical solution is: it includes a support base 1 and a support rod 2 located on the support base 1, and a swingable pull hook is set on the support rod 2 The connecting rod 3, the end of the drag hook connecting rod 3 is provided with a universally rotatable forceps body, through which the forceps clamps and pulls the tissue that hinders the surgical field of view, so as to facilitate the corresponding surgical operation.

In the present invention, a support rod 2 is provided on the support base 1, and the hook connecting rod 3 can swing relative to the supporting rod 2 through the swing connection mechanism 4. The first draw hook 7 and the second draw hook 8 in the opposite direction are adjusted by the swing of the draw hook connecting rod 3, the rotation of the draw hook rod 6, the relative distance between the second draw hook 8 and the first draw hook 7 or the support rod 2 is moving the support base 9 The movement can easily find the required opening operation position, and the compact structure improves the convenience in the small incision operation, ensures the effective and smooth operation of the small incision operation, and is safe and reliable.

Claims (10)

1. A miniature universal surgical retractor, characterized in that it includes a support base (1) and a support rod (2) located on the above support base (1), and a swingable A drag hook connecting rod (3), the end of the drag hook connecting rod (3) is provided with a drag hook body capable of universal rotation. 2. The miniature universal surgical retractor according to claim 1, characterized in that: the retractor body includes a retractor rod (6) and a first retractor (7) and a second retractor arranged on the retractor rod (6) For the draw hook (8), the arc direction of the first draw hook (7) is opposite to the arc direction of the second draw hook (8). 3. The miniature universal surgical retractor according to claim 2, characterized in that: the first pull rod (7) is adjacent to the pull rod connecting rod (3) on the pull hook rod (6), and the second pull hook (8) is installed on On the telescopic rod at the end of the drag hook rod (6), the second drag hook (8) can approach or move away from the first drag hook (7) through the telescopic rod. 4. The miniature universal surgical retractor according to claim 1, characterized in that: the retractor rod (6) is installed on the end of the retractor connecting rod (3) through a universal joint (5), and the retractor connecting rod (3 ) is installed on the end of the support rod (2) through the swing connection mechanism (4). 5. The miniature universal surgical retractor according to claim 4, characterized in that: the swing connection mechanism (4) includes a swing connection shell (12) fixed on the end of the support rod (2) and used for connecting with the retractor. The swing ball head (13) connected to the rod (3), the swing ball head (13) can swing in the swing connection shell (12), and the swing ball head (13) is arranged on the swing connection shell (12) for locking the swing ball Ball lock pin (10) for head (13). 6. The miniature universal surgical retractor according to claim 5, characterized in that: the swing ball head (13) is connected to the retractor rod (3) through a retractor rod length adjustment mechanism, and the retractor rod length is adjusted The mechanism includes an adjustment housing (14) that allows the pull hook connecting rod (3) to pass through. The pull hook connecting rod (3) is provided with connecting rod teeth (18), and the adjusting housing (14) is hinged with the connecting rod teeth. (18) A matching locking rack (15), one end of the locking rack (15) is located in the adjustment housing (14), and is connected to one end of the spring (17) in the adjustment housing (14), and the spring The other end of (17) is connected with the inner wall of the adjustment housing (14), and the other end of the locking rack (15) is located outside the adjustment housing (14). 7. The miniature universal surgical retractor according to claim 1, characterized in that: just above the support base (1), there is a mobile support base (9) that allows the support rod (2) to move in a circle, the The mobile support seat (9) is fixedly supported on the support base (1), and the support rod (2) is provided with a support rod locking pin (11). 8. The miniature universal surgical retractor according to claim 7, characterized in that: one or more support rods (2) are arranged on the mobile support seat (9). 9. The miniature universal surgical retractor according to claim 5, characterized in that: the lower surface of the support base (1) is provided with an adhesive layer for bonding and fixing. 10. A miniature universal surgical retractor, characterized in that it includes a support base (1) and a support rod (2) located on the support base (1), and a swingable A drag hook connecting rod (3), the end of the drag hook connecting rod (3) is provided with a clamp body capable of universal rotation.