Drag hook for micro-invasion supraorbital keyhole approach surgery

Abstract

The utility model discloses a drag hook for a micro-invasion supraorbital keyhole approach operation, and relates to the technical field of medical instruments. The retractor comprises a child retractor body, a mother retractor body, a tension spring and a holding piece, reserved holes allowing connecting buckles to penetrate through are formed in the tail end of the child retractor body and the tail end of the mother retractor body, the two connecting buckles are fixed to fixing heads through connecting chains, and threads of the two fixing heads are connected to the upper end of the same connecting block; the bending surfaces of the child drag hook and the mother drag hook are smooth surfaces, so that when the child drag hook and the mother drag hook make contact with incision tissue of a patient, compared with a traditional sharp drag hook, compression on the incision tissue during traction can be reduced, and damage to the incision tissue caused by long-time traction is avoided; the width and the height of the secondary draw hook are different from those of the primary draw hook, so that medical staff can select the secondary draw hook or the primary draw hook according to incision requirements.

Description

Technical Field

[0001] The utility model belongs to the field of medical devices, and specifically relates to a retractor for minimally invasive supraorbital keyhole approach surgery. Background Art

[0002] During supraorbital keyhole surgery, a buckle is needed to open the incision above the eyebrow orbit to expose the surgical field.

[0003] After the skin and muscle are incised with a scalpel, a retractor is used to pull the skin and muscle towards the head end respectively, so that the bone window at the supraorbital position is exposed. The traditional retractor is a sharp hook shape, which is easy to cause cutting injuries to the skin and subcutaneous tissues. Since the keyhole surgery has extremely high aesthetic requirements, scars are likely to appear after the cutting injury, affecting the appearance. The improved model replaces the sharp retractor at the front with two non-invasive blunt retractors, which can avoid tissue damage caused by long-term traction. At the same time, it is equipped with two widths and heights, which can be individually selected according to the incision shape and muscle thickness of the patient. In view of this, the present utility model is proposed. Summary of the Utility Model

[0004] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide a retractor for minimally invasive supraorbital keyhole approach surgery.

[0005] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is as follows:

[0006] A retractor for minimally invasive supraorbital keyhole approach surgery includes a sub-retractor, a mother retractor, a tension spring and a holding member. Reserved holes for connecting buckles to penetrate are provided at the tail ends of the sub-retractor and the mother retractor. Both connecting buckles are fixed to a fixed head through a connecting chain, and the threads of the two fixed heads are connected to the upper end of the same connecting block.

[0007] A tension spring is provided below the connecting block. Fixing members are installed at both the upper and lower ends of the tension spring, and the lower end of the tension spring is installed with the holding member through the fixing member.

[0008] The bent surfaces of the sub-retractor and the mother retractor are both designed as smooth surfaces, and the heights and widths of the sub-retractor and the mother retractor are different. The ends of the sub-retractor and the mother retractor are blunt ends.

[0009] Optionally, the holding member includes a main grip sleeve, an X-shaped connecting member and a locking ring. Positioning blocks for embedding the fixing member are fixed at the inner top ends of the main grip sleeve. A positioning groove is provided in the middle of the positioning block, and an anti-slip pad is bonded to the surface of the positioning groove. The lower end of the main grip sleeve is fixed to the locking ring through the X-shaped connecting member.

[0010] Optionally, both fixing members include a fixing bar, a T-shaped rod, and a nut. One end of the fixing bar is hinged with a T-shaped rod. The vertical portion of the T-shaped rod is provided with threads adapted to the nut, and a groove for docking the vertical portion of the T-shaped rod is formed at the other end of the fixing bar.

[0011] Optionally, sleeve pipes for docking the drainage tube are fixed at the lower ends of the female hook and the male hook, and drainage channels communicating with the inside of the sleeve pipes are formed inside the female hook and the male hook. The other ends of the drainage channels communicate with drainage holes formed on the surfaces of the female hook or the male hook respectively.

[0012] After adopting the above technical solutions, the present utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the present utility model does not necessarily need to achieve all the advantages described below at the same time:

[0013] 1. By setting the bent surfaces of the male hook and the female hook to be smooth surfaces, the present utility model can reduce the compression on the incision tissue during traction compared with the traditional sharp hook when contacting the incision tissue of the patient, avoiding tissue damage caused by long-term traction. Moreover, there are differences in the width and height of the male hook and the female hook, so medical staff can select the male hook or the female hook according to the needs of the incision.

[0014] 2. The present utility model can be fixed on the operating head frame through a locking ring or fixed on the operating drape through a resilient clip, achieving more flexible multiple choices of fixing locations, pulling forces, and directions.

[0015] 3. Considering that the retractor is mainly used to retract the surgical incision of the patient to expose the surgical field, and the blood outside the dura mater during the operation will affect the surgical field, so a drainage tube needs to be inserted to aspirate the blood. However, inserting the drainage tube into the incision position will reduce the surgical field. Therefore, after the present utility model docks the drainage tube with the sleeve pipe, the low pressure released by the drainage tube can drain the blood and water at the drainage holes of the male hook or the female hook through the drainage channel, and a flushing tube can also be connected to flush the surgical incision, thereby ensuring that the surgical field is not blocked.

[0016] The following further describes in detail the specific embodiments of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0018] Figure 1 is the main view sectional structure schematic diagram of the present utility model;

[0019] Figure 2Schematic cross-sectional view of the combined part structure of the female retractor, drainage channel and drainage hole in the present utility model;

[0020] Figure 3 Schematic side view of the combined part structure of the fixing bar, T-shaped rod and nut in the present utility model;

[0021] Figure 4 Schematic view of the appearance part structure of the sub-retractor and the female retractor in the present utility model;

[0022] Figure 5 For Figure 1 Enlarged schematic view of the structure of part A in;

[0023] Figure 6 For Figure 1 Enlarged schematic view of the structure of part B in;

[0024] Figure 7 Schematic view of the installation of the locking ring, surgical head frame and its accessories in the second embodiment of the present utility model;

[0025] Figure 8 Schematic view of the combined part structure of the resilient clip and the fixing bar in the third embodiment of the present utility model.

[0026] In the drawings, the list of components represented by each reference numeral is as follows:

[0027] 1. Sub-retractor; 2. Female retractor; 3. Connecting buckle; 4. Connecting chain; 5. Fixed head; 6. Connecting block; 8. Tension spring; 9. Main grip sleeve; 10. Positioning block; 11. Positioning groove; 12. Anti-slip pad; 13. X-shaped connecting piece; 14. Locking ring; 22. Fixing bar; 23. T-shaped rod; 24. Nut; 25. Sleeve pipe; 26. Drainage channel; 27. Drainage hole; 28. Resilient clip.

[0028] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0029] Now, the present utility model will be further described in detail with reference to the drawings.

[0030] Embodiment 1

[0031] Please refer to Figures 1 to 6 , the present utility model provides a technical solution: a retractor for minimally invasive supraorbital keyhole approach surgery, including a sub-retractor 1, a female retractor 2, a tension spring 8 and a holding member. Reserved holes for the connecting buckle 3 to pass through are provided at the tail ends of the sub-retractor 1 and the female retractor 2. Both connecting buckles 3 are fixed to the fixed head 5 through the connecting chain 4, and the threads of the two fixed heads 5 are connected to the upper end of the same connecting block 6;

[0032] A tension spring 8 is provided below the connecting block 6. Fixing members are installed at both the upper and lower ends of the tension spring 8. The lower end of the tension spring 8 is installed with the holding member through the fixing member.

[0033] Among them, the bent surfaces of the sub-hook 1 and the mother-hook 2 are both designed as smooth surfaces, and the heights and widths of the sub-hook 1 and the mother-hook 2 are different. The ends of the sub-hook 1 and the mother-hook 2 are blunt ends. By setting the bent surfaces of the sub-hook 1 and the mother-hook 2 as smooth surfaces, when they come into contact with the patient's incision tissue, the compression on the incision tissue during traction can be reduced compared with traditional sharp hooks, avoiding tissue damage caused by long-term traction. And there are differences in the width and height of the sub-hook 1 and the mother-hook 2. Therefore, medical staff can choose the sub-hook 1 or the mother-hook 2 according to the needs of the incision. The utility model is also fixed on the head frame accessory through the locking ring of the component 14, and then through the reverse pulling effect of the spring on the skin flap, it can also be replaced with a toughness clip fixed on the corresponding surgical drape through the tip, so as to play a fixing role in all directions, realizing the traction of the skin flap in various different directions and with different forces to adapt to the supraorbital keyhole surgery.

[0034] Among them, both fixing members include a fixing strip 22, a T-shaped rod 23 and a nut 24. One end of the fixing strip 22 is hinged with the T-shaped rod 23. The vertical part of the T-shaped rod 23 is provided with threads adapted to the nut 24, and a groove for docking the vertical part of the T-shaped rod 23 is opened at the other end of the fixing strip 22. By setting the fixing member, it is convenient for the user to replace the tension spring 8 after long-term use.

[0035] Among them, sleeve pipes 25 for docking the drainage tube are fixed at the lower ends of both the mother-hook 2 and the sub-hook 1, and drainage channels 26 communicating with the inside of the sleeve pipes 25 are opened inside the mother-hook 2 and the sub-hook 1. The other ends of the drainage channels 26 are respectively communicated with drainage holes 27 opened on the surfaces of the mother-hook 2 or the sub-hook 1. Considering that the hook is mainly used to traction the patient's surgical incision to expose the surgical field, and the blood and water during the operation will affect the surgical field, so it is necessary to place a drainage tube to drain the blood and water. And placing the drainage tube at the incision position will reduce the surgical field. Therefore, after the utility model docks the drainage tube with the sleeve pipe 25, the blood and water at the drainage holes 27 of the sub-hook 1 or the mother-hook 2 can be drained through the low pressure released by the drainage tube in cooperation with the drainage channel 26, and a flushing tube can also be connected to flush the surgical incision position.

[0036] Embodiment Two

[0037] Please refer to Figures 1 to 7, the present utility model provides a technical solution: a retractor for minimally invasive supraorbital keyhole approach surgery. The side end of the buckle ring 14 can also be designed as an open type, which has a structure similar to a key ring. Thus, the open end of the buckle ring 14 can be directly pressed to make the two openings misaligned and opened. As shown in the attached Figure 8 description, it can be intuitively seen how the open end deforms when pressed, that is, the pressed side of the open end has toughness and can be restored after the pressing is released, enabling the buckle ring 14 to be directly connected to the operating head frame and its accessories to play a fixing role.

[0038] Embodiment 3

[0039] Please refer to Figures 1 to 8 When using the device for traction, if there is no operating head frame at the front end of the traction bed, the tip of the resilient clip 28 can be used to clamp the bed for fixation. That is, when pressing the resilient clip 28, the two tips at the lower end of the resilient clip 28 are forced to open, and then the bed is clamped in the middle and the fingers are released. At this time, the two tips of the resilient clip 28 are reset to clamp the surgical drape. Different positions of clamping the drape can control the traction force.

[0040] The present utility model is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, fall within the protection scope of the present utility model. The technologies, shapes, and structures not described in detail in the present utility model are all well-known technologies.

Claims

1. A retractor for minimally invasive supraorbital keyhole approach surgery, comprising a sub-retractor (1), a main retractor (2), a tension spring (8) and a gripping member, characterized in that: The tail ends of the sub-retractor (1) and the female retractor (2) are both provided with reserved holes for the connecting buckle (3) to pass through, and the two connecting buckles (3) are both fixed to the fixing head (5) through the connecting chain (4), and the threads of the two fixing heads (5) are connected to the upper end of the same connecting block (6); A tension spring (8) is provided below the connecting block (6), and fixing pieces are installed at both the upper and lower ends of the tension spring (8), and the lower end of the tension spring (8) is installed with the holding piece through the fixing piece; The bending surfaces of the sub-retractor (1) and the main retractor (2) are both designed to be smooth surfaces, and the heights and widths of the sub-retractor (1) and the main retractor (2) are different. The ends of the sub-retractor (1) and the main retractor (2) are blunted ends.

2. A retractor for minimally invasive supraorbital keyhole approach surgery according to claim 1, characterized in that: The holding piece comprises a main holding sleeve (9), an X-shaped connecting piece (13) and a locking ring (14); a positioning block (10) for the fixing piece to be embedded is fixed to the inner top of the main holding sleeve (9); a positioning groove (11) is provided in the middle of the positioning block (10); and a non-slip pad (12) is bonded to the surface of the positioning groove (11); and the lower end of the main holding sleeve (9) is fixed to the locking ring (14) via the X-shaped connecting piece (13).

3. The retractor for minimally invasive supraorbital keyhole approach surgery according to claim 1, characterized in that: The two fixing members each comprise a fixing strip (22), a T-shaped rod (23) and a nut (24); one end of the fixing strip (22) is hingedly connected to the T-shaped rod (23); a vertical portion of the T-shaped rod (23) is provided with a thread matched with the nut (24); and the other end of the fixing strip (22) is provided with a groove for the vertical portion of the T-shaped rod (23) to butt against.

4. The retractor for minimally invasive supraorbital keyhole approach surgery according to claim 1, characterized in that: The lower ends of the female retractor (2) and the sub-retractor (1) are both fixed with a sleeve tube (25) for docking with a drainage tube, and the interiors of the female retractor (2) and the sub-retractor (1) are both provided with a drainage channel (26) connected to the interior of the sleeve tube (25), and the other end of the drainage channel (26) is respectively connected to a drainage hole (27) provided on the surface of the female retractor (2) or the sub-retractor (1).

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