CN214048943U

CN214048943U - Thoracic surgery retractor

Info

Publication number: CN214048943U
Application number: CN202022731715.8U
Authority: CN
Inventors: 吴伯勋; 刘洪利
Original assignee: Affiliated Hospital of Traditional Chinese Medicine TCM of Southwest Medical University
Current assignee: Affiliated Hospital of Traditional Chinese Medicine TCM of Southwest Medical University
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-27
Anticipated expiration: 2030-11-23

Abstract

A thoracic surgery retractor, which solves the problems of difficult operation and poor control of retracting precision in the using process of the retractor; including two interval adjustable screw rods, the screw rod middle part is rotated and is connected with the fixed block, and it has the different thread groove of turning to open on the screw rod of the fixed block left and right sides, threaded connection has first sleeve pipe and second sleeve pipe on the screw rod, it is connected with first connecting rod to rotate on the first sleeve pipe, it is connected with the second connecting rod to rotate on the second sleeve pipe, first connecting rod with the second connecting rod articulates jointly has the drag hook, the drag hook run through the fixed block and with fixed block sliding connection, two the structure on the screw rod is the same, two the equal sliding connection in screw rod right side has the right angle connecting rod, and is two sets of the common sliding connection of right angle connecting rod has the drive shaft.

Description

Thoracic surgery retractor

Technical Field

The utility model belongs to the technical field of the medical treatment technique and specifically relates to a thoracic surgery retractor is related to.

Background

The retractor is also called a draw hook, is used for retracting tissues to expose the surgical field, is convenient to explore and operate, can be divided into a handheld draw hook and an automatic draw hook, has specifications of various shapes and sizes, and can select a proper draw hook according to the surgical needs. The expansion force of the current thoracic surgical retractor is unstable and is easy to damage a patient, and the expansion locking device is not arranged, so that the operation is laborious, and the fatigue of a user can be caused after the long-time use; strutting ware digging arm and fixed arm top atress in addition too big, can lead to digging arm and fixed arm to warp in the use to because the atress is too big, lead to the digging arm to slide not smooth, the operation is more hard, and can not be fine be suitable for different patients, be difficult to carry out the stable form to strutting the device and adjust, the open size of thorax is not controlled well moreover, and the accuracy is relatively poor, has increased medical personnel's the operation degree of difficulty.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming the defects of the prior art, the utility model provides a thoracic surgery retractor, which can effectively solve the problems of difficult operation and poor control of the retracting precision in the use process of the retractor.

In order to realize the above purpose, the utility model discloses a two interval adjustable screw rods, the screw rod middle part is rotated and is connected with the fixed block, and it has the different thread groove of turning to open on the screw rod of the fixed block left and right sides, threaded connection has first sleeve pipe and second sleeve pipe on the screw rod, it is connected with first connecting rod to rotate on the first sleeve pipe, it is connected with the second connecting rod to rotate on the second sleeve pipe, first connecting rod with the second connecting rod articulates jointly has the drag hook, the drag hook run through the fixed block and with fixed block sliding connection, two the same, two structure on the screw rod the equal sliding connection in screw rod right side has the right angle connecting rod, and is two sets of the common sliding connection of right angle connecting rod has the drive shaft.

Preferably, the screw rod of rear side rotates and is connected with first regulating block, threaded connection has fastening screw on the first regulating block, the last cover of fastening screw has the slider, slider sliding connection has the second regulating block, the second regulating block rotates with the screw rod of front side to be connected, it has key type hole to open on the second regulating block, and the slider is located the key type hole.

Preferably, the second regulating block is carved with the number indicating line, fixedly connected with on the slider with number indicating line matched with indicate the piece, it is located second regulating block top surface top to indicate the piece.

Preferably, the first adjusting block and the second adjusting block are respectively provided with two groups, the two groups are symmetrical about the midpoint of the draw hook, the first adjusting block and the second adjusting block on the right side are fixedly connected with supporting blocks, and the supporting blocks are movably connected with the driving shaft.

Preferably, the front end and the rear end of the driving shaft are fixedly connected with separation blades, the middle part of the driving shaft is fixedly connected with an anti-skidding sleeve, and the supporting block is positioned between the separation blades and the anti-skidding sleeve.

Preferably, the front end of the draw hook is a V-shaped opening

Compared with the prior art, the utility model has the advantages that: the size of retractor can be adjusted to the screw rod through adjustable interval, reduces the interference of retractor when carrying out the operation to the doctor among the operation process, adjusts the interval between two drag hooks through the screw rod accuracy, is convenient for carry out the auto-lock to the drag hook position, and the device need not the doctor to carry out the hand-held type operation simultaneously, has reduced doctor's work, and the doctor of being convenient for carries out the operation. The utility model has the advantages of reasonable design, the tissue that is more convenient for draw the patient makes things convenient for the doctor to carry out the operation.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of a part of the structure of the present invention.

Fig. 3 is a schematic view of the connection structure of the driving shaft of the present invention.

In the figure: the device comprises a screw rod 1, a fixing block 2, a first sleeve 3, a second sleeve 4, a first connecting rod 5, a second connecting rod 6, a drag hook 7, a right-angle connecting rod 8, a driving shaft 9, a first adjusting block 10, a fastening screw 11, a sliding block 12, a second adjusting block 13, a key-type hole 14, a line with 15 indices, an indicating block 16, a supporting block 17, a blocking piece 18 and an anti-slip sleeve 19.

Detailed Description

The invention will now be described in further detail with reference to the accompanying figures 1-3. The attached drawings are simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, and thus only show the components related to the present invention.

Given by fig. 1-3, the utility model discloses a two interval

adjustable screw rods

1, 1 middle part of screw rod is rotated and is connected with fixed block 2, and it has the different thread groove of turning to soon to open on the screw rod 1 of the 2 left and right sides of fixed block, threaded connection has first sleeve 3 and second sleeve 4 on the screw rod 1, it is connected with first connecting rod 5 to rotate on the first sleeve 3, it is connected with second connecting rod 6 to rotate on the second sleeve 4, first connecting rod 5 with second connecting rod 6 articulates jointly has drag hook 7, drag hook 7 runs through fixed block 2 and with 2 sliding connection of fixed block, two last structure of screw rod 1 is the same, two 1 equal sliding connection in right side of screw rod has right angle connecting rod 8, two sets of the common sliding connection of right angle connecting rod 8 has drive shaft 9.

When the device is used, firstly, the distance between the two groups of screw rods 1 is adjusted, so that the two pull hooks 7 respectively hook the two sides of the part to be unfolded, then the positions of the two screw rods 1 are fixed, the bottom of the fixing block 2 is provided with an adhesive layer, the device can be fixed on the skin of a patient through the adhesive layer, a doctor can carry out more operations, finally, the screw rods 1 are driven to rotate by rotating the driving shaft 9, the screw rods 1 drive the outer side ends of the first connecting rod 5 and the second connecting rod 6 to be relatively far away through the matching of the first sleeve 3 and the second sleeve 4, and therefore the two pull hooks 7 are far away from each other to achieve the unfolding; the four right-angle connecting rods 8 are provided, the length of the connecting part of the right-angle connecting rods 8 and the driving shaft 9 is long, the right-angle connecting rods 8 and the driving shaft 9 cannot be separated from each other when the length between the two screws 1 is adjusted, the driving shaft 9, the right-angle connecting rods 8 and the screws 1 are mutually matched to form a right-angle coupling mechanism, the driving shaft 9 can drive the two screws 1 to rotate when rotating, and meanwhile, the matching between the driving shaft 9 and the screws 1 is not influenced when the distance between the two screws 1 is adjusted; it is rhombus mechanism to cooperate between first sleeve 3, first connecting rod 5, second sleeve 4 and the second connecting rod 6, cooperate at first sleeve 3 and second sleeve 4 and the different thread grooves on the screw rod 1, can drive first sleeve and second sleeve 4 when screw rod 1 rotates and carry out relative motion, as shown in fig. 2, when both keep away from each other, the pin joint of first connecting rod 5 and second connecting rod 6 and drag hook 7 moves to the rear side to accomplish the action of strutting, provide convenience for the doctor's operation.

The rear side the screw rod 1 is gone up to rotate and is connected with first regulating block 10, threaded connection has fastening screw 11 on the first regulating block 10, fastening screw 11 goes up the cover has slider 12, slider 12 sliding connection has second regulating block 13, second regulating block 13 rotates with the screw rod 1 of front side to be connected, it has key type hole 14 to open on the second regulating block 13, and slider 12 is located key type hole 14.

The distance between the two screw rods 1 is adjusted through the first adjusting block 10 and the second adjusting block 13, the distance between the two screw rods 1 is positioned by changing the relative position of the fastening screw 11 on the second adjusting block 13, the freedom degree of the front and back sliding of the slide block 12 and the key-shaped hole 14 is realized, and meanwhile, the middle key hole in the slide block 12 is larger than the diameter of the lower side of the fastening screw 11; in order to ensure that the supporting force on the left side and the right side of the screw rod 1 is uniform, two groups of first adjusting blocks 10 and second adjusting blocks 13 are arranged and are respectively positioned on the left side and the right side of the screw rod 1.

A counting line 15 is carved on the second adjusting block 13, an indicating block 16 matched with the counting line 15 is fixedly connected to the sliding block 12, and the indicating block 16 is located above the top surface of the second adjusting block 13.

In order to ensure that the stretching distances of the left side and the right side of the screw rods 1 are the same, a numerical identifier is arranged beside the number indicating line 15 on the second adjusting block 13 to indicate the distance between the two screw rods 1, and when the distance between the screw rods 1 is adjusted, the arrow of the indicating block 16 is directly fixed to the same number, so that the stretching lengths of the left side and the right side of the screw rods 1 can be ensured to be consistent.

The first adjusting block 10 and the second adjusting block 13 are respectively provided with two groups, the two groups are symmetrical about the midpoint of the draw hook 7, the first adjusting block 10 on the right side and the second adjusting block 13 on the right side are both fixedly connected with supporting blocks 17, and the supporting blocks 17 are movably connected with a driving shaft 9; the front end and the rear end of the driving shaft 9 are fixedly connected with blocking pieces 18, the middle part of the driving shaft 9 is fixedly connected with an anti-skidding sleeve 19, and the supporting block 17 is positioned between the blocking pieces 18 and the anti-skidding sleeve 19.

As shown in fig. 3, the supporting block 17 and the driving shaft 9 have both rotational freedom and relative sliding freedom, the supporting rod is located between the blocking piece 18 and the anti-slip sleeve 19, the diameters of the blocking piece 18 and the anti-slip sleeve 19 are larger than the diameter of the supporting block 17, so that the right-angle connecting rod 8 is effectively prevented from being disengaged from the driving shaft 9 when the distance between the screws 1 is adjusted, and the anti-slip sleeve 19 is provided with a protrusion, so that medical personnel can conveniently rotate the driving shaft 9; meanwhile, the supporting block 17 ensures that the distance between the driving shaft 9 and the two screws 1 is kept unchanged, so that the other end of the right-angle connecting rod 8 is not separated from the screws 1, and the operation of the coupling mechanism is ensured.

The front end of the drag hook 7 is a V-shaped opening.

The V-shaped opening of the drag hook 7 can ensure that the middle position space and the visual field of the strutting position are wider, thereby facilitating the operation of doctors.

The utility model discloses whole work flow: when using, at first adjust the interval between two sets of screw rods 1, make two drag hooks 7 catch on the both sides that need strut the position respectively, later fix two screw rods 1's position, 2 bottoms of fixed block are equipped with the bond line, can fix the device on patient's skin through the bond line, the doctor can carry out more operations, finally through rotating drive shaft 9, it rotates to drive screw rod 1, screw rod 1 drives the outside end relative distance of first connecting rod 5 and second connecting rod 6 through the cooperation of first sleeve pipe 3 and second sleeve pipe 4, thereby make two drag hooks 7 keep away from each other, reach the purpose that struts.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Thoracic surgical retractor, comprising two screws (1) with adjustable spacing, characterized in that: screw rod (1) middle part is rotated and is connected with fixed block (2), and it has the screw thread groove of turning to the difference to open on screw rod (1) of the fixed block (2) left and right sides, threaded connection has first sleeve pipe (3) and second sleeve pipe (4) on screw rod (1), it is connected with first connecting rod (5) to rotate on first sleeve pipe (3), it is connected with second connecting rod (6) to rotate on second sleeve pipe (4), first connecting rod (5) with second connecting rod (6) articulate jointly has drag hook (7), drag hook (7) run through fixed block (2) and with fixed block (2) sliding connection, two the structure on screw rod (1) is the same, two screw rod (1) right side equal sliding connection has right angle connecting rod (8), and is two sets of right angle connecting rod (8) common sliding connection has drive shaft (9).

2. The thoracic surgical retractor according to claim 1, wherein a first adjusting block (10) is rotatably connected to the screw rod (1) at the rear side, a fastening screw (11) is threadedly connected to the first adjusting block (10), a sliding block (12) is sleeved on the fastening screw (11), a second adjusting block (13) is slidably connected to the sliding block (12), the second adjusting block (13) is rotatably connected to the screw rod (1) at the front side, a key-shaped hole (14) is formed in the second adjusting block (13), and the sliding block (12) is located in the key-shaped hole (14).

3. Thoracic surgical retractor according to claim 2, characterized in that the second adjustment block (13) is marked with a reference line (15), an indicator block (16) cooperating with the reference line (15) is fixedly connected to the slider (12), and the indicator block (16) is located above the top surface of the second adjustment block (13).

4. The thoracic surgical retractor according to claim 3, wherein the first adjusting block (10) and the second adjusting block (13) are provided in two groups, and the two groups are symmetrical about a midpoint of the retractor (7), the first adjusting block (10) on the right side and the second adjusting block (13) on the right side are both fixedly connected with a support block (17), and the support block (17) is movably connected with the driving shaft (9).

5. The thoracic surgical retractor according to claim 4, wherein the driving shaft (9) is fixedly connected with blocking pieces (18) at the front end and the rear end, the middle part of the driving shaft (9) is fixedly connected with an anti-skid sleeve (19), and the supporting block (17) is positioned between the blocking pieces (18) and the anti-skid sleeve (19).

6. Thoracic surgical retractor according to claim 1, characterized in that the front end of the retractor (7) is a "V" shaped opening.