Soft tissue expanding and stripping sleeve device with guiding function

Abstract

The utility model relates to the field of medical instruments, in particular to a guiding soft tissue expanding and stripping sleeve device which comprises a first separating clamp, a second separating clamp, a first handle, a second handle, a connecting shaft and a fixing sleeve. The number of the connecting shafts is two, the two connecting shafts are located at the opposite positions of the outer wall of the circumference of the fixing sleeve correspondingly, the placing direction of the connecting shafts is perpendicular to the projection of the placing direction of the fixing sleeve on the horizontal plane, and each connecting shaft is rotationally provided with a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod are crossed to form an X shape; the first separating clamp and the first handle are fixedly installed at the two ends of the first connecting rod respectively, the second separating clamp and the second handle are fixedly installed at the two ends of the second connecting rod respectively, and the first separating clamp, the second separating clamp, the first handle and the second handle are all parallel to the fixing sleeve. The device has the effect of promoting safe and rapid operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a soft tissue expansion and stripping sleeve device with a guide. BACKGROUND

[0002] Lumbar disc herniation is a common clinical condition caused by various factors, such as degeneration and rupture of the nucleus pulposus, which protrudes into the vertebral plate and compresses or irritates the adjacent tissues, causing a series of clinical symptoms such as lumbar pain and nerve root pain. However, for patients with severe symptoms, surgical removal of excess intervertebral disc tissue is required to reduce nerve root compression and damage and restore spinal nerve and muscle function. Traditional open surgery has a large trauma and a high incidence of postoperative complications. With the continuous development of technology, transforaminal endoscopic surgery has been widely used in the treatment of lumbar disc herniation.

[0003] Transforaminal endoscopic surgery is a minimally invasive procedure that uses a small incision to establish a working channel through the skin to the lumbar intervertebral foramen area and reach the disc herniation site. The internal structures of the spine are transmitted to the external display using a spinal endoscope, and the surgeon operates by observing the display to remove the protruding intervertebral disc through the established channel, thereby achieving the treatment goal.

[0004] When establishing a working channel in the lumbar intervertebral foramen area, a puncture needle is used for positioning, a guide wire is placed along the puncture needle, and a step-by-step sleeve is used to guide the soft tissue expansion along the guide wire. The working sleeve is as close as possible to the bone surface, and there is no soft tissue residue in the sleeve. However, when using traditional step-by-step sleeves for soft tissue expansion, only longitudinal compression and expansion of the soft tissue are performed, and effective lateral soft tissue stripping and expansion cannot be achieved. Traditional step-by-step expansion catheters often cannot effectively expand and strip the soft tissue of the bone surface, resulting in soft tissue obstruction during the placement of the working sleeve, which prevents the sleeve from being effectively placed on the bone surface. After placing the working sleeve, there is still a large amount of soft tissue interfering with the field of view under the mirror, and the residual soft tissue is easily torn and damaged during operation, causing bleeding and affecting the operation process. CONTENT OF THE INVENTION

[0005] In order to promote the safe and rapid performance of the operation, the present application provides a soft tissue expansion and stripping sleeve device with a guide.

[0006] The soft tissue expansion and stripping sleeve device with a guide provided by the present application adopts the following technical solution:

[0007] The utility model provides a kind of soft tissue expansion stripping sleeve device with guide, including first separating forceps, second separating forceps, first handle, second handle, connecting shaft and fixed sleeve;Two of the connecting shaft are provided, and the two connecting shafts are located at the opposite position of the circumferential outer wall of fixed sleeve respectively, the projection of the placement direction of the connecting shaft and the placement direction of fixed sleeve on horizontal plane is in vertical state, first connecting rod and second connecting rod are rotatably installed on each connecting shaft, and the first connecting rod and second connecting rod cross to form X shape;First separating forceps and first handle are fixedly installed at the two ends of first connecting rod respectively, and second separating forceps and second handle are fixedly installed at the two ends of second connecting rod respectively, and first separating forceps, second separating forceps, first handle and second handle are in parallel with fixed sleeve.

[0008] Optionally, the end of the fixed sleeve close to the first separating forceps is in the shape of a circular truncated cone.

[0009] Optionally, the end of the first separating forceps away from the first connecting rod is in the shape of an inclined plane facing the direction of the fixed sleeve, and the end of the second separating forceps away from the second connecting rod is in the shape of an inclined plane facing the direction of the fixed sleeve.

[0010] Optionally, the first separating forceps and the second separating forceps are both in the shape of an arc, and the concave surface of the first separating forceps and the concave surface of the second separating forceps both abut against the outer wall of the fixed sleeve.

[0011] Optionally, the first handle is fixedly installed with a first semicircular plate, and the second handle is fixedly installed with a second semicircular plate.

[0012] Optionally, the outer wall of the fixed sleeve is provided with an annular groove, and the end of the connecting shaft facing the fixed sleeve is installed with a pulley, and the pulley is slidingly installed in the annular groove.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] 1. By using the device under the guide of the guide wire, the preliminary soft component expansion reaches the lumbar vertebral surface, and then the soft tissue of the lumbar vertebral surface is expanded and stripped again by the first separating forceps and the second separating forceps, so as to establish a good working channel environment and promote the safe and rapid operation.

[0015] 2. The setting of the pulley facilitates the rotation of the connecting shaft, the first connecting rod and the second connecting rod along the circumferential direction of the fixed sleeve, and further drives the first separating forceps and the second separating forceps to move along the circumferential direction of the fixed sleeve, and on the other hand, the pulley plays a limiting role, which can prevent the first separating forceps and the second separating forceps from moving horizontally with the fixed sleeve, and further establishes a good working channel.

[0016] 3. The present application has the advantages of simple structure, convenient operation and cost saving. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a guided soft tissue expansion and dissection cannula according to an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of a fixed sleeve of a guided soft tissue expansion and dissection sleeve device according to an embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the first and second separating clamps of a guided soft tissue expansion and dissection cannula device according to an embodiment of this application.

[0020] Explanation of reference numerals in the attached drawings: 1. First separating clamp; 2. Second separating clamp; 3. First handle; 31. First semi-circular plate; 4. Second handle; 41. Second semi-circular plate; 5. Connecting shaft; 51. Pulley; 6. Fixing sleeve; 61. Annular groove; 7. First connecting rod; 8. Second connecting rod. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0022] This application discloses a guided soft tissue expansion and dissection cannula device.

[0023] Reference Figure 1 , Figure 2 and Figure 3 A guided soft tissue expansion and dissection cannula device includes a first separation clamp 1, a second separation clamp 2, a first handle 3, a second handle 4, a connecting shaft 5, and a fixing cannula 6.

[0024] There are two connecting shafts 5, which are located at opposite positions on the outer circumference of the fixed sleeve 6. The placement direction of the connecting shafts 5 is perpendicular to the projection of the placement direction of the fixed sleeve 6 onto the horizontal plane. A first connecting rod 7 and a second connecting rod 8 are rotatably mounted on each connecting shaft 5. The first connecting rod 7 and the second connecting rod 8 intersect to form an X shape. The first separating clamp 1 and the first handle 3 are fixedly installed at both ends of the first connecting rod 7, and the second separating clamp 2 and the second handle 4 are fixedly installed at both ends of the second connecting rod 8. The first separating clamp 1, the second separating clamp 2, the first handle 3 and the second handle 4 are all parallel to the fixed sleeve 6.

[0025] It needs to be known that the end of the fixed sleeve close to the first separating pincers 1 is frustoconical. The end of the first separating pincers 1 away from the first connecting rod 7 is beveled toward the direction of the fixed sleeve 6, and the end of the second separating pincers 2 away from the second connecting rod 8 is beveled toward the direction of the fixed sleeve 6. The first separating pincers 1 and the second separating pincers 2 are both arc-shaped, and the concave surface of the first separating pincers 1 and the concave surface of the second separating pincers 2 are both in abutment with the outer wall of the fixed sleeve 6.

[0026] When it is needed to expand the bone surface soft tissue, the staff moves the first handle 3 and the second handle 4 toward opposite directions, under the action of the first connecting rod 7 and the second connecting rod 8, the first separating pincers 1 and the second separating pincers 2 simultaneously move toward opposite directions, thereby expanding the bone surface soft component.

[0027] In order to facilitate the staff to move the first handle 3 and the second handle 4, the first handle 3 is fixedly installed with a first semicircular plate 31, and the second handle 4 is fixedly installed with a second semicircular plate 41.

[0028] The outer wall of the fixed sleeve 6 is provided with an annular groove 61, and the end of the connecting shaft 5 toward the fixed sleeve 6 is installed with a pulley 51, which is slidingly installed in the annular groove 61. The pulley 51 is arranged to facilitate the connecting shaft 5 to drive the first connecting rod 7 and the second connecting rod 8 to rotate along the circumferential direction of the fixed sleeve 6, thereby driving the first separating pincers 1 and the second separating pincers 2 to move along the circumferential direction of the fixed sleeve 6, and to play a limiting role, which can prevent the first separating pincers 1 and the second separating pincers 2 from moving in the horizontal direction with the fixed sleeve 6.

[0029] The implementation principle of the soft tissue expansion and stripping sleeve device with a guide according to the embodiment of the application is as follows: the staff puts the first separating pincers 1, the second separating pincers 2 and the fixed sleeve 6 into the lumbar vertebral surface through a small incision, then moves the first handle 3 and the second handle 4 toward opposite directions, under the action of the first connecting rod 7 and the second connecting rod 8, the first separating pincers 1 and the second separating pincers 2 simultaneously move toward opposite directions, thereby expanding the lumbar vertebral surface soft component, then rotating the first separating pincers 1 and the second separating pincers 2 to expand and strip the outside of the fixed sleeve 6 by 360°, to establish a good tissue environment for the working channel, and to promote the safe and rapid operation.

[0030] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, so: any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A soft tissue dilator and dissection cannula device with guidance, characterized by: The utility model provides a kind of first separating forceps (1), second separating forceps (2), first handle (3), second handle (4), connecting shaft (5) and fixed sleeve (6) are included;Two connecting shafts (5) are provided, and the two connecting shafts (5) are located at the opposite positions of the circumferential outer wall of fixed sleeve (6) respectively, the placing direction of connecting shaft (5) and the projection of the placing direction of fixed sleeve (6) on horizontal plane is perpendicular state, first connecting rod (7) and second connecting rod (8) are rotatably installed on each connecting shaft (5), and first connecting rod (7) and second connecting rod (8) cross and form X shape;First separating forceps (1) and first handle (3) are fixedly installed at the two ends of first connecting rod (7) respectively, and second separating forceps (2) and second handle (4) are fixedly installed at the two ends of second connecting rod (8) respectively, and first separating forceps (1), second separating forceps (2), first handle (3) and second handle (4) are parallel with fixed sleeve (6).

2. A soft tissue dilator sheath with guidance according to claim 1, characterized in that: The end of the fixed sleeve close to the first separating forceps (1) is in the shape of a circular truncated cone.

3. A soft tissue dilator sheath with guidance according to claim 1, wherein: The end of the first separating forceps (1) away from the first connecting rod (7) is in the shape of an inclined plane facing the fixed sleeve (6), and the end of the second separating forceps (2) away from the second connecting rod (8) is in the shape of an inclined plane facing the fixed sleeve (6).

4. A soft tissue dilator sheath with guidance according to claim 1, wherein: The first separating forceps (1) and the second separating forceps (2) are both in the shape of an arc, and the concave surface of the first separating forceps (1) and the concave surface of the second separating forceps (2) are both in abutment with the outer wall of the fixed sleeve (6).

5. A soft tissue dilator sheath with guidance according to claim 1, wherein: The first handle (3) is fixedly installed with a first semicircular plate (31), and the second handle (4) is fixedly installed with a second semicircular plate (41).

6. A soft tissue dilator sheath with guidance according to claim 1, wherein: The outer wall of the fixed sleeve (6) is provided with an annular groove (61), and the end of the connecting shaft (5) facing the fixed sleeve (6) is installed with a pulley (51), and the pulley (51) is slidingly installed in the annular groove (61).

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