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.

What is claimed is: 
     
       1. A self-service surgical retractor comprising:
 Maina 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; 
 Locka 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 ); 
 Locka 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-upa 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-upa 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.