Self-service surgical retractor

Abstract

A new self-service surgical retractor with the characteristics comprising: main post (1), lock sleeve (7), lock operating lever (11), take-up device lock sleeve (15), take-up device (17) and hook plate (22). The lock sleeve (7) is covered on the lower part of the main post (1) to form a dovetail groove; the lock operating lever (11) is spun on the main post (1) through the thread; the take-up device lock sleeve (15) is spun on the upper part of the main post (1) and locks and fixes the inserted link (18) of the take-up device (17) on the upper end of the main post (1); the take-up device (17) is connected with the hook plate (22) through the retraction tape or rope (21). With simple structure and low cost, the present invention is easy to manufacture and use.

Description

CROSS REFERENCE TO RELATED PATENT APPLICATION

30 is opened in order to facilitate the insertion of the inserted link 18 into the jack on the upper end of the main post 1; the upper end of the take-up device 17 is equipped with a take-up box 19, in which a take-up spool 20 is installed. Both ends of the take-up spool 20 stretch out of the take-up box 19, one of which acts as take-down press end (button sleeves that can increase the contact area for operation can be installed on the press end) and the other acts as take-up driving end (the driving end can be of polygon or edge circular pile structure matched with the socket spanner, can use the socket spanner for operation and can also directly use the hook plate of the present invention as the operating wrench simply by indicating the shrinkage pool matched with the appearance of the driving end on the hook plate); one end of the traction tape or rope 21 (nylon textile tape or rope, plastic braid or rope or metal flexible rope and the tape or rope with other types of materials can be used) is fixed on the take-up spool 20 and the other end is connected with the hook plate 22 through the opening on the take-up box 19; on the said take-up box 19 the toothed sleeve 23 is fixed, the end face of the toothed sleeve 23 is set with one-way gear; the said take-up spool 20 is also equipped with the one-way gear column 24, which is set with one-way gear on the end face, matched with the toothed sleeve 23 and can only rotate in one-way after engaged with the toothed sleeve 23; one end of the one-way gear column 24 abuts on one end of the spring 25 which always pushes the one-way gear column 24 to the toothed sleeve 23, and the other end of the spring abuts on the inner wall of the take-up box 19; the said spring 25 is cased on the take-up spool 20; the said take-up spool 20 is installed in the toothed sleeve 23; one end of the retraction tape or rope 21 is connected with the one-way gear column 24 on the take-up spool 20 and the other end is equipped with a guide pin 32 inserted into the guide groove 27 on the hook plate 22, so as to achieve detachable connection with the hook plate 22. The width of the insert end of the guide groove 27 on the said hook plate 22 is larger than the width of the positioning end to facilitate the insertion of the guide pin 32. The hook plate 22 is connected with the traction tape or rope 21 and is equipped with a hook head 26 used to hook the human tissue or abdominal wall. Meanwhile, to play the role of wrench, the shrinkage pool 29 can be dug in suitable location of the hook plate 22 (at the location where the wall thickness is greater) instead of the socket spanner for take-up operation, as shown in FIG. 4.

Various parts of the present invention can be made of stainless steel and can also be made of medical engineering plastics. From the perspective of one-time use and cost reduction, it is better to use the medical engineering plastics with injection molding, which is not only with quality guaranteed, but also with low manufacturing cost.

The working process of the present invention is as follows:

1. Installation of Lifting Device

First rotate the lock operating lever 11 to make the opening of the dovetail groove larger than the thickness of the fixed slide rail beside the surgical bed, and then insert the dovetail groove directed at the bedside, then rotate the lock operating lever 11 and move the lock sleeve 7 down. The lock sleeve 7 can only move in axial linear direction rather than rotate with the lock operating lever 11 under the action of the anti-rotation convex 10 until the lock sleeve 7 clenches with the surgical bedside and the lock operating lever 11 can not rotate, thereby completing the locking connection with the bedside.

Then, release the take-up device lock sleeve 15; at this time, the upper end of the main post 1 is not subject to force, so that the open slot on it is stretched and the inserted link 18 can be easily drawn out from the main post 1; rotate the take-up device lock sleeve 15 again when the inserted link 18 is drawn out to the set height and then the take-up device lock sleeve 15 narrows the opening on the upper end of the main post 1 and holds tightly in the inserted link 18 and next tighten the take-up device lock sleeve 15. The removal process is just the opposite.

2. Take-Down Process:

Press the button on one end of the take-up spool 20 stretching out of the take-up box 19 and overcome the elasticity of the spring 25, and the take-up spool 20 will move so that the originally meshing one-way fluted disks are separated; since the take-up spool 20 is unconstrained at this time, just pull the retraction tape or rope 21 to pull out the belt originally wrapped around the take-up spool 20 and then release the button after pulling out to an appropriate location; the one-way fluted disks are meshed with each other at this time and are fixed at the set length since the toothed sleeve 23 is fixed on the take-up box and cannot rotate and the one-way gear column 24 on the take-up spool 20 can not cross the toothed sleeve 23 (that is, the take-up spool 20 in FIG. 2 cannot rotate counterclockwise).

3. Take-Up Process:

The retraction tape or rope can be placed in the take-up box 19 only by covering the shrinkage pool 29 which is on the socket spanner or hook plate 22 on the driving end on the take-up spool 20 to rotate the take-up spool 20 (clockwise rotation in FIG. 2).

4. Hooking of hook plate 22:

Only insert the guide pin outside the retraction tape or rope 21 in the guide groove 27 on the surface of the hook plate 22, and the guide pin 32 will not be pulled out of the hook plate 22 under the constraints of the bottom of the guide groove 27 and the gravity or tension. Simply pull the guide pin and take out the guide pin 32 reversely to take out it.

It can be seen from the embodiments that the key of the present invention is that a single surgeon can complete the assembly of the lifting device and the tightening of the retraction tape or rope without the help of assistants and the invention will not affect the activities and surgeries of doctors with the overall straight-bar structure. If required, the adjustment during the surgery can be completely accomplished by one person, thereby reducing the number of auxiliary persons in the surgery.

The part uncovered in the present invention is the same with the existing technology or can be achieved by means of the existing technology.

Claims

1. A self-service surgical retractor comprising:

main a main post (1) having an upper end and a lower end, wherein the lower end of the main post (1) is equipped with a first half of a dovetail groove (2) matched with the a surgical bedside and the upper end of the main post is equipped with an external thread (3) and a jack (4); The upper end of and wherein the said external thread (3) is of conical structure (5) and has an opening (6) along the axial direction;

lock a lock sleeve (7) having an upper end and a lower end, wherein: the lock sleeve (7) is set on the said main post (1); The the lower end of the lock sleeve (7) is equipped with the other a second half of the dovetail groove (8) that can move up and down and the said, wherein the other second half of the dovetail groove (8) that can move up and down, together with the first half of the dovetail groove, constitutes a complete dovetail groove connected with the surgical bedside with the half of dovetail groove (2); wherein, on the an inner wall of the lock sleeve (7) an axial guide groove (9) is equipped, which is matched with the an anti-rotation convex (10) on the lower end of the main post (1), so that the lock sleeve (7) can only move up and down along the main post (1);

lock a lock operating lever (11) having an upper end and a lower end, wherein the upper end of the lock operating lever (11) is equipped with the an internal thread (12) matched with the external thread (3) on the upper end of the main post (1) and the lower end of the lock operating lever (11) is equipped with a circular groove (13), which is matched with the a circular convex (14) on the upper end of the lock sleeve (7), so that the lock operating lever (11) is connected with the lock sleeve (7) and can drive the lock sleeve (7) to move up and down along the main post (1) with the lock operating lever (11);

Take-up a take-up device lock sleeve (15) having an upper end and a lower end, wherein the upper end of the take-up device lock sleeve (15) is equipped with the internal thread (16) matched with the external thread (3) on the upper end of the main post (1) and the lower end of the take-up device lock sleeve (15) is covered on the upper end of the lock operating lever (11);

a hook plate, wherein the hook plate is connected with traction tape or rope and is equipped with a hook head used to hook human tissue or an abdominal wall; and

Take-up a take-up device (17) having an upper end and a lower end, wherein the lower end of the take-up device (17) is equipped with an inserted link (18) that is inserted in the jack (4) on the upper end of the main post (1) and the height of the take-up device (17) can be adjusted by adjusting the position of the inserted link (18) in the jack (4); the upper end of the take-up device (17) is equipped with a take-up box (19), in which a take-up spool (20) is installed; Both both ends of the take-up spool (20) stretch out of the take-up box (19), one of which acts as a take-down press end and the other acts as a take-up driving end; one end of the traction tape or rope (21) is fixed on the take-up spool (20) and the other end is connected with the hook plate (22) through the an opening on the take-up box (19); on the said take-up box (19) the a toothed sleeve (23) is fixed, the end face of the toothed sleeve is set with a one-way gear; the said take-up spool (20) is also equipped with a the one-way gear column (24), which is set with the one-way gear on the end face matched with the toothed sleeve (23) and can only rotate in one-way after engaged with the toothed sleeve (23); one end of the one-way gear column (24) abuts on one end of the a spring (25) which always pushes the one-way gear column (24) to the toothed sleeve (23) and the other end of the spring abuts on the inner wall of the take-up box (19); the said spring (25) is cased on the take-up spool (20); the said take-up spool (20) is installed in the toothed sleeve (23); hook plate (22), the hook plate (22) is connected with the traction tape or rope (21) and is equipped with a hook head (26) used to hook the human tissue or abdominal wall.

2. The self-service surgical retractor of claim 1, the characteristic of the said new self-service surgical retractor is that the said wherein the circular convex (14) is the a continuous convex ring or the a convex ring composed of at least two sections of convexes.

3. The self-service surgical retractor of claim 2, the characteristic of the said new self-service surgical retractor is that wherein the take-up driving end of the said take-up spool (20) is the a polygon or edge circular pile structure.

4. The self-service surgical retractor of claim 1, the characteristic of the said new self-service surgical retractor is that one end of the said traction tape or rope (21) is connected with the one-way gear column (24) on the take-up spool (25), and the other end is equipped with a guide pin inserted into the guide groove (27) on the hook plate (22) so as to achieve detachable connection with the hook plate (22); The width of the insert end of the guide groove (27) on the said hook plate (22) is larger than the width of the positioning end to facilitate the insertion of the guide pin.

5. The self-service surgical retractor of claim 1, the characteristic of the said new self-service surgical retractor is that the said wherein the traction tape or rope (21) can be is made of nylon textile tape or rope, plastic braid or rope or metal flexible rope.

6. The self-service surgical retractor of claim 1, the characteristic of the said new self-service surgical retractor is that the said wherein the take-up box (19) is covered with an upper cover (28).

7. The self-service surgical retractor of claim 1, the characteristic of the said new self-service surgical retractor is that on wherein the surface of the said inserted link (18) is opened with an axial air discharge duct.

8. The self-service surgical retractor of claim 1, the characteristic of the said new self-service surgical retractor is that the said wherein the hook plate (22) is equipped with the shrinkage pool (29) an indentation matched with the take-up driving end on the take-up spool (20).

9. A self-service surgical retractor comprising:

a main post having a first end and an opposite second end, wherein the main post is equipped with a mounting mechanism near the first end to mount the main post to a surgical bed and a supporting mechanism near the second end;

a take-up device having a first end and an opposite second end, wherein the first end of the take-up device is configured to rotatably engage the supporting mechanism near the second end of the main post such that the take-up device is configured to move in both first and second directions along an axis of the main post;

a take-up device lock sleeve, wherein the take-up device lock sleeve is configured to lock the take-up device onto the main post when the take-up device lock sleeve moves in the first direction along the axis of the main post and release the take-up device from the main post when the take-up device lock sleeve moves in the second direction along the axis of the main post;

a take-up box mounted near the second end of the take-up device, wherein the take-up box is equipped with a retractable mechanism and a lock mechanism for locking/unlocking the retractable mechanism; and

a hook plate that is connected to the retractable mechanism, wherein the hook plate is equipped with a hook head used to hook the human tissue or abdominal wall.

10. The self-service surgical retractor of claim 9, wherein the mounting mechanism of the main post is equipped with an adjustable dovetail groove for engaging a sidebar of the surgical bed.

11. The self-service surgical retractor of claim 10, wherein the mounting mechanism of the main post further includes a lock sleeve for forming a half of the adjustable dovetail groove.

12. The self-service surgical retractor of claim 11, wherein the lock sleeve is configured to engage the main post via an anti-rotation convex and a lock operating lever via a circular convex, respectively, such that a rotation movement of the lock operating lever along the axis of the main post results in a translation movement of the lock sleeve along the axis of the main post so as to adjust the width of the adjustable dovetail groove.

13. The self-service surgical retractor of claim 9, wherein the supporting mechanism of the main post is equipped with a jack at the second end for hosting the first end of the take-up device and an external thread near the second end for engaging the take-up device lock sleeve.

14. The self-service surgical retractor of claim 13, wherein the take-up device lock sleeve is equipped with an internal thread for engaging the external thread near the second end of the main post such that a clockwise rotation movement of the take-up device lock sleeve along the axis of the main post presses an interior surface of the jack against an exterior surface of the first end of the take-up device and a counter-clockwise rotation movement of the take-up device lock sleeve along the axis of the main post releases the interior surface of the jack from the exterior surface of the first end of the take-up device.

15. The self-service surgical retractor of claim 14, wherein the take-up device is equipped with an axial air discharge duct connecting a closed space defined by the interior surface of the jack and the exterior surface of the first end of the take-up device.

16. The self-service surgical retractor of claim 15, wherein the retractable mechanism of the take-up box is equipped with a spring wrapping around the axis of the take-up spool with one end fixed onto the take-up spool and another end fixed onto the take-up box to draw the hook plate closer to the take-up box.

17. The self-service surgical retractor of claim 16, wherein the lock mechanism includes a toothed sleeve mounted on the take-up box, the toothed sleeve including a one-way gear surface facing a one-way gear column mounted near a first end of the take-up spool, and a pressure by the spring causes the one-way gear column to engage the one-way gear surface into a locked state and a counter-pressure against the spring's pressure causes the one-way gear column to disengage the one-way gear surface such that the hook plate can be pulled away from the take-up box.

18. The self-service surgical retractor of claim 17, wherein the take-up box is equipped with a tightening mechanism for rotating the one-way gear column and the spring around the axis of the take-up spool while the one-way gear column is engaged with the toothed sleeve by the spring's pressure.

19. The self-service surgical retractor of claim 9, wherein the retractable mechanism of the take-up box is equipped with a take-up spool and a traction rope wraps around an axis of the take-up spool with one end fixed onto the take-up spool and another end connected to the hook plate through an opening on the take-up box.

20. The self-service surgical retractor of claim 19, wherein the traction rope is equipped with a guide pin that is detachably inserted into a guide groove on the hook plate.