Auxiliary positioning device for minimally invasive spine surgery

Abstract

The invention discloses an auxiliary positioning device for minimally invasive spine surgery, and particularly relates to the technical field of medical instruments, the auxiliary positioning device comprises a B positioning needle, a positioning rod, a depth limiting sleeve, a positioner fixing frame, a positioner adjusting frame, a positioning needle guide rod, an A positioning needle, a guide wire and a hollow positioning rod. According to the invention, all the components cooperate with each other, so that the field-of-view area intersection point of the surgical instrument and the endoscope can be quickly and accurately found. All the components are tightly connected, functions are integrated, meanwhile, the advantages of precise positioning, stable supporting and reliable protection are achieved, the number of times of fluoroscopy is reduced, X-ray harm to doctors and patients is reduced, the precision of minimally invasive spine surgery is effectively improved, tissue damage of the patients is reduced, surgical risks are reduced, surgical efficiency is improved, and meanwhile postoperative recovery of the patients is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and more specifically, to an auxiliary positioning device for minimally invasive spinal surgery. Background Art

[0002] Minimally invasive spinal surgery is an important development direction of modern spinal surgery. With its significant advantages of less trauma and faster recovery, it is increasingly widely used in the treatment of spinal diseases. In this type of surgery, accurate positioning is one of the key factors to ensure the success of the operation, reduce surgical risks, improve surgical efficiency, and reduce complications. Therefore, auxiliary positioning devices play an indispensable role.

[0003] There is no corresponding auxiliary positioning device for minimally invasive spinal surgery at present. It completely relies on the surgeon's own accumulated experience and feel, and then confirms, adjusts the positioning, and reconfirms through more than a dozen X-ray fluoroscopy. Some doctors will use instruments to peel and remove more human soft tissue to reach the intersection of the left and right channels of the surgical observation end and the surgical operation end and proceed to the next step of the operation. The harm to the patient and the surgical risk are relatively large, and the probability of postoperative complications and sequelae is increased, which is not conducive to improving the patient's postoperative quality of life and the smooth progress of the rehabilitation process. The surgical efficiency is low, and the doctor and the patient have to withstand multiple fluoroscopic radiation radiation, which causes great radiation damage.

[0004] Therefore, an auxiliary positioning device for minimally invasive spinal surgery is now proposed. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an auxiliary positioning device for minimally invasive spinal surgery to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an auxiliary positioning device for minimally invasive spinal surgery, comprising: B positioning needle, positioning rod, depth limiting sleeve, positioning device fixing frame, positioning device adjustment frame, positioning needle guide rod, A positioning needle, guide wire, hollow positioning rod.

[0007] B positioning needle, the B positioning needle is used for anchoring and positioning the observation end of the endoscope and guiding the endoscope sheath; A positioning rod, which is used for positioning the observation end of the endoscope and guiding the endoscope sheath; A depth-limiting sleeve, which is used to fix the positioning needle and the positioning rod at the endoscope observation end B; The positioner fixing frame is plugged into and matched with the depth limiting sleeve, and the positioner fixing frame is used for clamping and fixing the positioning component of the surgical observation end; The positioner adjustment frame is plugged into and matched with the positioner fixing frame, and the positioner adjustment frame is used to clamp and fix the positioning component of the surgical operation end; The positioning needle guide rod is plugged into and matched with the positioner adjustment frame, and the positioning needle guide rod is used to guide and protect the A positioning needle at the surgical operation end; A positioning needle, the A positioning needle is inserted in the positioning needle guide rod, and the A positioning needle is used to open a hole at the positioning point to form a micro-hole for surgical operation; A guide wire, which is inserted into the needle hole of positioning needle A and is used to locate the surgical microhole punctured by positioning needle A; The hollow positioning rod is inserted along the guide wire and inserted into the skin incision at the operating end of the instrument, and the hollow positioning rod is used to guide the dilation tube; Preferably, the B positioning needle end is a threaded needle that can be anchored on the bone tissue to play a role in firm positioning. The threaded needle end has a limited depth step at 6mm, which plays a role in depth protection to avoid damage to the soft tissue behind the needle caused by excessive penetration into the bone tissue. The tail end of the B positioning needle has a push-assist and pull-assist groove for easy holding and control by the operator.

[0008] Preferably, the head end of the positioning rod is a tapered blunt head, which can push away soft tissue to contact bone tissue and play a positioning role. The tail end of the positioning rod is provided with a pushing and pulling assisting groove, which is convenient for the operator to hold and control.

[0009] Preferably, the outer side of the depth limiting sleeve has a toothed structure, which can cooperate with the clamping mechanism of the locator fixing frame, adjust the working length and lock it. The center of the depth limiting sleeve has a through hole, and the tail end has an elastic buckle, which can be adjusted by a nut to clamp and fix the B positioning needle and positioning rod.

[0010] Preferably, the positioner fixing frame includes a fixing frame body, a slide groove, a locking hole and a first clamping block. The fixing frame body is an arc-shaped structure. A slide groove is provided in the fixing frame body. A locking hole is provided at the bottom of the slide groove. A first clamping block is installed at one end of the fixing frame body. The first clamping block is used to clamp the depth limiting casing.

[0011] Preferably, the locator adjustment frame includes a sliding frame body, a dial, a connecting head and a second clamping block. The sliding frame body is an arc-shaped structure, and the sliding frame body is plugged into the sliding groove. A dial is provided on the front of the sliding frame body, and a connecting head is provided at one end of the sliding frame body. A second clamping block is installed on the connecting head, and the second clamping block is used to clamp the positioning needle guide rod.

[0012] Preferably, a nut is screwed into the locking hole, and an end of the nut abuts against the sliding frame.

[0013] Preferably, the first clamping block and the second clamping block are both provided with clamping grooves that are clamped and matched with the first clamping block and the second clamping block.

[0014] Preferably, the outer side of the positioning needle guide rod has a toothed structure, which can cooperate with the clamping mechanism of the positioner adjustment frame, adjust the working length and lock it. The center of the positioning needle guide rod has a hollow space, and the A positioning needle can be inserted.

[0015] Preferably, the A positioning needle is a combination of a needle tube and a needle core. The needle core of the A positioning needle is pulled out and a guide wire can be inserted into the needle tube of the A positioning needle.

[0016] Preferably, the head end of the hollow positioning rod is a conical blunt head with a through hole in the middle, which can be inserted along the guide wire.

[0017] Technical effects and advantages of the present invention: 1. The locator's bilateral fixing and sliding adjustment frame are used to adjust the locator's opening angle and the working angle of the locator's guide rod according to the scale. The locator's and the locator's guide rod are positioned to allow the operating end to quickly enter the endoscope's field of view, reducing the number of fluoroscopy times and X-ray hazards, reducing the risk of damaging healthy tissues, and improving the success rate and safety of the operation. This is especially advantageous in complex anatomical areas of the spine, reducing the probability of neurovascular injury.

[0018] 2. After the locator is accurately positioned, the positioning needle puncture, guide wire positioning, hollow positioning rod and expansion tube expansion are connected in an orderly manner. The process is smooth and completed in one go, which greatly shortens the operation time, reduces the patient's trauma and postoperative recovery burden, and is of great significance for patients with poor physical condition or urgent illness.

[0019] 3. It integrates positioning, puncture, hole expansion, field of view provision and protection functions to avoid frequent replacement of instruments causing surgical interruptions or errors, and improve overall surgical efficiency and reliability.

[0020] 4. The arc structure of the positioner provides stable support for the device. The combination of the slide groove and the locking hole enables flexible and accurate positioning and fixation of the adjustment frame to adapt to different lesion locations and surgical approach requirements, ensure surgical positioning accuracy, and improve operational convenience and surgical success rate.

[0021] 5. Through the clamping blocks and clamping grooves of the locator fixing frame and the adjustment frame, the depth limiting sleeve and the positioning needle guide rod are firmly clamped to prevent the positioning point from shifting and shaking, reducing operational errors and surgical risks, and improving surgical safety and accuracy.

[0022] 6. The adjustment frame dial provides intuitive and accurate quantitative basis for positioning the positioning needle. The doctor can precisely control the error within the millimeter level, ensuring accurate implementation of the surgical operation and improving the effect and safety of surgical treatment.

[0023] 7. The nut is tightly against the adjusting frame in the locking hole to build a stable mechanical connection, strengthen the stability of the combination of the fixed frame and the adjusting frame, resist external force interference during surgical operations, and prevent the displacement deviation of the adjusting frame from affecting the expansion accuracy and surgical progress, laying a solid foundation for precise surgical operations. The reliable locking mechanism reduces the risk of loss of control of surgical instruments and damage to surrounding tissues due to accidental movement of the instruments, ensures the predictability and accuracy of surgical operations, improves surgical safety and stability, allows doctors to focus on key steps of surgical operations, reduces psychological pressure and the probability of operational errors, and protects the life and health of patients.

[0024] 8. The close cooperation between the clamping groove and the clamping block provides reliable friction and clamping force for the depth-limiting cannula and the positioning needle guide rod, preventing unstable conditions such as displacement, falling off, and rotation, ensuring the normal function and operation accuracy of surgical instruments, improving the continuity and reliability of surgical operations, and reducing surgical risks caused by instrument failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a structural schematic diagram of the observation end positioning assembly of the present invention.

[0027] Figure 3 It is a structural schematic diagram of the orthopedic positioner fixing frame of the present invention.

[0028] Figure 4 It is a structural schematic diagram of the orthopedic positioner adjustment frame of the present invention.

[0029] Figure 5 It is a structural schematic diagram of the operating end positioning assembly of the present invention.

[0030] The accompanying drawings are marked as follows: 1. B positioning needle; 2. positioning rod; 3. depth limiting sleeve; 4. positioning device fixing frame; 401. fixing frame; 402. sliding groove; 403. locking hole; 404. first clamping block; 5. positioning device adjustment frame; 501. sliding frame; 502. dial; 503. connector; 504. second clamping block; 6. positioning needle guide rod; 7. A positioning needle; 8. guide wire; 9. hollow positioning rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] As attached Figure 1-Figure 5An auxiliary positioning device for minimally invasive spinal surgery is shown, comprising: B positioning needle 1, the B positioning needle 1 is used to puncture from the skin incision to the spinal lesion position, and anchored on the bone tissue to fix the positioning point after confirmation under X-ray fluoroscopy; A positioning rod 2, which is used to puncture from the skin incision to the position of the spinal lesion and confirm the positioning point under X-ray fluoroscopy; A depth limiting sleeve 3, wherein the depth limiting sleeve 3 is mounted on the positioner fixing frame 4, and the depth limiting sleeve 3 is plugged into the B positioning needle 1 or the positioning rod 2; A positioner fixing frame 4, the positioner fixing frame 4 is used to clamp and fix the depth limiting casing 3; A positioner adjustment frame 5, the positioner adjustment frame 5 is plugged and matched with the positioner fixing frame 4, and the positioner adjustment frame 5 is used to clamp and fix the positioning needle guide rod 6; A positioning needle guide rod 6, which is mounted on the positioner adjustment frame 5, with its head end attached to the epidermis, to locate and guide the puncture point of the minimally invasive surgery operation end; A positioning needle 7, the A positioning needle 7 is inserted in the positioning needle guide rod 6 and is used to make a hole at the puncture point to form a micro-hole for surgical operation; A guide wire 8, wherein the guide wire 8 is inserted into the A positioning needle 7 and is used to locate the surgical microhole punctured by the A positioning needle 7; During the specific implementation, the surgeon determines the entry point of the endoscope according to the planned surgical route, cuts the skin tissue 6-8mm, inserts the B positioning needle 1 or the positioning rod 2 into the incision to reach the lesion site, and positions the surgical observation end. The B positioning needle 1 can anchor the bone tissue for more secure positioning.

[0033] Insert the depth-limiting sleeve 3 into the clamping groove of the positioner fixing frame 4, adjust the required height for the operation and lock it.

[0034] Insert the depth limiting sleeve 3 installed on the positioner fixing frame 4 into the B positioning needle 1 or positioning rod 2 from the bottom.

[0035] The depth limiting sleeve 3 slides into the skin incision along the B positioning needle 1 or the positioning rod 2 and reaches the upper side of the lesion site, and the B positioning needle 1 or the positioning rod 2 is locked by the nut of the depth limiting sleeve 3.

[0036] Insert the sliding frame body 501 in the positioner adjustment frame 5 into the sliding groove 402 of the fixed frame body 401 provided on the positioner adjustment frame 5, and tighten the nut to fix the positioner adjustment frame 5.

[0037] Insert the positioning needle guide rod 6 into the clamping groove in the positioning device adjustment frame 5 until the head end of the positioning needle guide rod 6 reaches the outer side of the skin of the surgical instrument operation positioning point and then is locked.

[0038] Loosen the fixing nut of the adjustment frame, adjust the positioner adjustment frame 5, adjust the positioning needle guide rod 6 to the angle required for the operation, and tighten the nut to fix the positioner adjustment frame 5.

[0039] A positioning needle 7 is inserted into the positioning needle guide rod 6, punctures the skin tissue, reaches the lesion site, and intersects with the B positioning needle 1 or the positioning rod 2 retained at the surgical observation end.

[0040] Pull out the needle core of positioning needle A 7, insert guide wire 8 into the needle tube of positioning needle A 7, and reach the intersection of positioning needle B 1 or positioning rod 2 and positioning needle A 7.

[0041] Loosen the locking nut on the depth limiting sleeve 3, remove the depth limiting sleeve 3 and the positioner fixing frame 4, the positioner adjustment frame 5, the A positioning needle 7, and the positioning needle guide rod 6.

[0042] The hollow positioning rod 9 is inserted along the guide wire 8, and the head end of the hollow positioning rod 9 reaches the intersection of the positioning needle 1 or the positioning rod 2 and the guide wire 8. The positioning of the surgical observation end and the surgical operation end is completed.

[0043] Through the synergistic effect of the above-mentioned components and multi-link precise positioning, the number of fluoroscopy times and X-ray hazards can be reduced, the risk of damaging healthy tissue can be lowered, the success rate and safety of surgery can be improved, the operation time can be greatly shortened, and the patient's trauma and postoperative recovery burden can be reduced, which is of great significance.

[0044] Finally, a few points should be explained: First, in the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary positioning device for minimally invasive spinal surgery, characterized in that: include: B positioning needle (1), positioning rod (2), depth limiting sleeve (3), positioning device fixing frame (4), positioning device adjustment frame (5), positioning needle guide rod (6), A positioning needle (7), guide wire (8), hollow positioning rod (9); A B positioning needle (1), the B positioning needle (1) is used for anchoring and positioning the observation end of the endoscope and guiding the endoscope sheath; A positioning rod (2), the positioning rod (2) being used for positioning the observation end of the endoscope and guiding the endoscope sheath; A depth limiting sleeve (3), wherein the depth limiting sleeve (3) is used to fix the positioning needle (1) and the positioning rod (2) at the observation end B of the endoscope; The positioner fixing frame (4) is plugged into and matched with the depth limiting sleeve (3), and the positioner fixing frame (4) is used to clamp and fix the positioning component of the surgical observation end; The positioner adjustment frame (5) is plugged into and matched with the positioner fixing frame (4), and the positioner adjustment frame (5) is used to clamp and fix the positioning component of the surgical operation end; The positioning needle guide rod (6) is plugged into and matched with the positioner adjustment frame (5), and the positioning needle guide rod (6) is used to guide and protect the A positioning needle (7) at the surgical operation end; A positioning needle (7), the A positioning needle (7) is inserted in the positioning needle guide rod (6), and the A positioning needle (7) is used to open a hole at the positioning point to form a micro-hole for surgical operation; A guide wire (8), the guide wire (8) being inserted into the needle hole of the A positioning needle (7), and the guide wire (8) being used to locate the surgical operation microhole punctured by the A positioning needle (7); The hollow positioning rod (9) is inserted along the guide wire (8) and inserted into the skin incision at the operating end of the instrument. The hollow positioning rod (9) is used to guide the dilation tube.

2. The auxiliary positioning device for minimally invasive spinal surgery according to claim 1, characterized in that: The head end of the B positioning needle (1) is a threaded needle that can be anchored on bone tissue to provide a secure positioning effect. A limited depth step is provided at 6 mm from the head end of the threaded needle to provide a depth limit protection effect to avoid damage to the soft tissue behind the needle that may be caused by excessive penetration into the bone tissue. The tail end of the B positioning needle (1) is provided with a push-assist and pull-assist groove to facilitate the operator's holding and control.

3. The auxiliary positioning device for minimally invasive spinal surgery according to claim 2, characterized in that: The head end of the positioning rod (2) is a conical blunt head, which can push away soft tissue to contact bone tissue, thereby playing a positioning role. The tail end of the positioning rod (2) is provided with a pushing and pulling assisting groove, which is convenient for an operator to hold and control.

4. The auxiliary positioning device for minimally invasive spinal surgery according to claim 3, characterized in that: The outer side of the depth limiting sleeve (3) has a toothed structure, which can cooperate with the clamping mechanism of the positioner fixing frame (4), adjust the working length and lock it. The center of the depth limiting sleeve (3) is hollow, and the tail end has an elastic buckle, which can be adjusted by a nut to clamp and fix the B positioning needle (1) and the positioning rod (2).

5. The auxiliary positioning device for minimally invasive spinal surgery according to claim 4, characterized in that: The positioner fixing frame (4) comprises a fixing frame body (401), a slide groove (402), a locking hole (403) and a first clamping block (404); the fixing frame body (401) is an arc-shaped structure; a slide groove (402) is provided in the fixing frame body (401); a locking hole (403) is provided at the bottom of the slide groove (402); a first clamping block (404) is installed at one end of the fixing frame body (401); the first clamping block (404) is used to clamp the depth limiting sleeve (3).

6. The auxiliary positioning device for minimally invasive spinal surgery according to claim 5, characterized in that: The positioner adjustment frame (5) comprises a sliding frame body (501), a dial (502), a connector (503) and a second clamping block (504); the sliding frame body (501) is an arc-shaped structure, and the sliding frame body (501) is plugged into and matched with the slide groove (402); the front of the sliding frame body (501) is provided with a dial (502); one end of the sliding frame body (501) is provided with a connector (503); the connector (503) is installed with a second clamping block (504); the second clamping block (504) is used to clamp the positioning needle guide rod (6).

7. The auxiliary positioning device for minimally invasive spinal surgery according to claim 6, characterized in that: A nut is screwed into the locking hole (403), and an end of the nut abuts against the sliding frame (501).

8. The auxiliary positioning device for minimally invasive spinal surgery according to claim 7, characterized in that: The first clamping block (404) and the second clamping block (504) are both provided with clamping grooves that cooperate with the first clamping block (404) and the second clamping block (504) for clamping.

9. The auxiliary positioning device for minimally invasive spinal surgery according to claim 8, characterized in that: The outer side of the positioning needle guide rod (6) has a toothed structure, which can cooperate with the clamping mechanism of the positioner adjustment frame (5) to adjust the working length and lock it. The center of the positioning needle guide rod (6) has a hollow space, which can be inserted into the A positioning needle (7).

10. The auxiliary positioning device for minimally invasive spinal surgery according to claim 9, characterized in that: The A positioning needle (7) is a combination of a needle tube and a needle core. The needle core of the A positioning needle (7) is pulled out and a guide wire (8) can be inserted into the needle tube of the A positioning needle (7).

11. The auxiliary positioning device for minimally invasive spinal surgery according to claim 10, characterized in that: The head end of the hollow positioning rod (9) is a conical blunt head with a through hole in the middle, and can be inserted along the guide wire (8).

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