Medical navigation power system

Abstract

The invention discloses a medical navigation power system, and belongs to the technical field of medical instruments, the medical navigation power system comprises a machine body, the lower end of the machine body is fixedly connected with a handheld part, the machine body is provided with a driving mechanism, and the driving mechanism is connected with a medical saw assembly for the medical saw assembly to swing; the machine body is provided with pasting ends corresponding to identification directions, each pasting end is pasted with a mark point paster, so that the navigation system can identify through the mark point pasters, and the specific number of the mark point pasters on each pasting end is not less than four. Through the arrangement of the mark point patch, the mark point patch can select the pasting position according to the requirement of surgical operation, and then the mark point patch is pasted on a machine body; meanwhile, the thickness of the mark point patch is small, the mark point patch is stably fixed to the machine body after being pasted, vibration generated during power operation cannot be amplified when being transmitted to the mark point, recognition of the navigation system is easier, and the effects of recognition precision and surgical operation stability are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a medical navigation power system. Background Art

[0002] When using a handheld power system to grind and cut the joint during surgery, it is necessary to accurately calculate the moving distance and feed amount.

[0003] The existing patent is a handheld power system and an orthopedic surgical system using the same, including: an acetabular rasp, a connecting rod and a shell, wherein a driving device is arranged inside the shell, the driving device is connected to the connecting rod to drive the acetabular rasp to rotate at high speed, and a handle is connected to the lower part of the shell; the shell is provided with a front convex edge and a rear convex edge, and a plurality of reflective marking balls are arranged on the front convex edge and the rear convex edge respectively, and the distance between two adjacent reflective marking balls on each convex edge is greater than 50mm. It is used in conjunction with an optical tracking trolley, and the reflective marking balls in the handheld power system are tracked by the optical tracking trolley to complete the navigation of the handheld power system to improve the grinding accuracy of the acetabular rasp.

[0004] The reflective marker ball of the above-mentioned power system is fixed at a specific position on the power body. During the power operation, vibration may be generated. When the vibration is transmitted to the reflective marker ball protruding from the body, the vibration of the reflective marker ball will be amplified, resulting in a decrease in recognition accuracy, thereby leading to poor surgical results. At the same time, the reflective marker ball is easily blocked during surgery, resulting in unrecognizable. For this reason, we propose a medical navigation power system to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a medical navigation power system, which has the advantages of reducing the vibration of the marking point and improving the recognition accuracy, and solves the problems mentioned in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a medical navigation power system, comprising a fuselage, a handheld part is fixedly connected to the lower end of the fuselage, a driving mechanism is provided on the fuselage, and the driving mechanism is connected to a medical saw assembly so that the medical saw assembly can swing;

[0007] The fuselage is provided with an adhesive end corresponding to the identification direction, and each adhesive end is affixed with a marking point patch, so that the navigation system can identify through the marking point patch, and the specific number of marking point patches on each adhesive end is not less than four.

[0008] Furthermore, the marking point patch is a highly reflective patch.

[0009] Furthermore, a shock absorbing cavity is opened in the fuselage, and a shock absorbing block is provided in the shock absorbing cavity. The shock absorbing block can slide relative to the shock absorbing cavity, and both ends of the shock absorbing block are fixedly connected with a first spring, and one end of the first spring away from the shock absorbing block is fixedly connected to the shock absorbing cavity.

[0010] Furthermore, the inner wall of the shock absorbing cavity and the outer wall of the shock absorbing block are both provided with anti-slip grooves to increase the resistance.

[0011] Furthermore, the medical saw assembly includes a saw blade, a front end of the saw blade is provided with saw teeth, and an end of the saw blade close to the saw teeth is provided with a chip removal hole to reduce the weight of the saw blade.

[0012] Furthermore, the driving mechanism includes a motor, which is fixedly connected to the fuselage. A rotating rod is provided at the output end of the motor. A through hole is provided at the end of the saw blade. The saw blade is sleeved on the rotating rod through the through hole. A slot connected to the outside is provided on the through hole. The slot diameter is smaller than the aperture diameter of the through hole. A spline is fixedly connected to the rotating rod, and the rotating rod is clamped with the slot through the spline.

[0013] Furthermore, a matching rod is fixedly connected to the rotating rod, and the diameter of the matching rod is smaller than the diameter of the slot, so that after the rotating rod is separated from the through hole, the medical saw assembly can be taken out, and a pressing block is fixedly connected to the matching rod, and the pressing block extends outside the fuselage.

[0014] Furthermore, a clamping block is fixedly connected to the rotating rod, and a sleeve is slidably connected to the bottom ends of the rotating block and the clamping block. A key slot cooperating with the spline is provided on the sleeve, and the sleeve is fixedly connected to the output end of the motor. A second spring is fixedly connected inside the sleeve, and the end of the second spring away from the sleeve is fixedly connected to the clamping block.

[0015] Furthermore, a socket slot is provided on the body, and the baffle is plugged into the socket slot to block bone chips.

[0016] Furthermore, a switch is provided on the handheld portion, and the switch is electrically connected to the driving mechanism.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention achieves that the marking point patch can be pasted at a position selected according to the needs of the surgical operation, and then pasted to the fuselage, and the surgical operation can be performed after identification and registration by the navigation system; at the same time, since the thickness of the marking point patch is relatively small, the marking point patch is stably fixed to the fuselage after pasting, and the vibration during power operation will not be amplified when transmitted to the marking point, making it easier for the navigation system to identify, thereby improving the recognition accuracy and stability of the surgical operation.

[0019] 2. The present invention sets the specific number of marking point patches on each sticking end to be no less than four, thereby ensuring that there are at least four marking point patches within the angle that needs to be identified in each direction, so that the navigation system can accurately identify the marking point. At the same time, when there are more than four marking point patches on a certain sticking end, when the navigation system performs identification, even if some marking point patches are blocked, other marking point patches can still meet the identification requirements, thereby greatly reducing the probability of non-identification.

[0020] 3. The present invention provides a shock-absorbing cavity and a shock-absorbing block, thereby achieving the effect of offsetting the sliding force of the shock-absorbing block and the shock force, reducing the shock force, reducing the shock force on the fuselage, and improving the recognition accuracy of the navigation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The overall structure of the power system of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 2 The overall structure of the power system of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a schematic structural diagram of the medical saw assembly of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the driving mechanism of the present invention;

[0025] Figure 5 It is a schematic cross-sectional structure diagram of the driving mechanism of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the shock absorbing chamber, the shock absorbing block and the first spring of the present invention;

[0027] In the figure: 1. body; 11. marking point patch; 12. socket slot; 13. shock-absorbing chamber; 14. shock-absorbing block; 15. first spring; 2. hand-held part; 21. switch; 22. battery compartment baffle; 23. locking block; 3. driving mechanism; 31. pressing block; 32. matching rod; 33. rotating rod; 34. spline; 35. sleeve; 36. motor; 37. clamping block; 38. second spring; 4. medical saw assembly; 41. saw blade; 42. saw teeth; 43. chip removal hole; 44. through hole; 45. slot. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0032] The present invention proposes a medical navigation power system, such as Figure 1 and Figure 2 As shown, it includes a body 1, a hand-held part 2 is fixedly connected to the lower end of the body 1, a battery compartment for placing batteries and a battery compartment baffle 22 are provided at the bottom end of the hand-held part 2, a locking block 23 and an unlocking part and a locking part cooperating with the locking block 23 are provided at the upper end of the hand-held part 2, when the locking block 23 is located in the unlocking part, the battery supplies power to the driving mechanism 3, so that the driving mechanism 3 can be normally controlled by the switch 21, when the locking block 23 is located in the locking part, the battery stops supplying power to the driving mechanism 3, so that the driving mechanism 3 cannot be controlled by pressing the switch 21.

[0033] At present, the reflective marker ball of most power systems is fixed at a specific position on the power body. During the power operation, vibration may be generated. When the vibration is transmitted to the reflective marker ball protruding from the body, the vibration of the reflective marker ball will be amplified, resulting in a decrease in recognition accuracy, thereby resulting in poor surgical results. At the same time, the reflective marker ball is easily blocked during surgery, resulting in inability to be recognized; therefore, a driving mechanism 3 is provided on the body 1, and the driving mechanism 3 is connected to a medical saw assembly 4 for the medical saw assembly 4 to swing; the medical saw assembly 4 is preferably a swing saw, and a medical saw assembly 4 known in the art, such as a reciprocating saw, may also be selected. The medical saw assembly 4 is provided in sterile packaging and can be directly unpacked and used during surgery.

[0034] The fuselage 1 is provided with an adhesive end corresponding to the identification direction, and each adhesive end is adhered with a marking point patch 11, so that the navigation system can identify through the marking point patch 11, and the specific number of the marking point patch 11 on each adhesive end is not less than four; the marking point patch 11 can select the pasting position according to the needs of the surgical operation and then be pasted on the fuselage 1, and the surgical operation can be performed after being identified and registered by the navigation system; at the same time, due to the small thickness of the marking point patch 11, the marking point patch 11 is stably fixed to the fuselage 1 after pasting, and the vibration during power operation will not be amplified when it is transmitted to the marking point, making it easier for the navigation system to identify, thereby providing recognition accuracy and stability of the surgical operation.

[0035] By setting the specific number of marking point patches 11 on each adhesive end to be no less than four, it is ensured that there are at least four marking point patches 11 within the angle that needs to be identified in each direction, so that the navigation system can accurately identify them; at the same time, when the number of marking point patches 11 on a certain adhesive end is more than four, when the navigation system performs identification, even if some marking point patches 11 are blocked, other marking point patches 11 can still meet the identification requirements, thereby greatly reducing the probability of non-identification.

[0036] Preferably, the marking point patch 11 is a high-reflective patch. It should be noted that, according to actual conditions, other marking point patches can also be selected as long as they can be recognized by the navigation system.

[0037] When the medical saw assembly 4 performs a swing osteotomy, the upward shock force is transmitted to the body 1, causing the marking point patch 11 on the body 1 to vibrate, which may affect the recognition accuracy. Figure 6As shown, a shock absorbing cavity 13 is opened in the fuselage 1, and a shock absorbing block 14 is provided in the shock absorbing cavity 13. The shock absorbing block 14 can slide relative to the shock absorbing cavity 13, and both ends of the shock absorbing block 14 are fixedly connected with a first spring 15, and one end of the first spring 15 away from the shock absorbing block 14 is fixedly connected to the shock absorbing cavity 13; after the shock force is transmitted to the fuselage 1, the shock absorbing block 14 slides along the shock absorbing cavity 13 under the influence of the shock force, and then is buffered and reset by the first springs 15 at both ends of the shock absorbing block 14, so that the sliding force of the shock absorbing block 14 and the shock force are offset, thereby reducing the shock force, reducing the shock force on the fuselage 1, and improving the recognition accuracy of the navigation system.

[0038] Preferably, the inner wall of the shock absorbing cavity 13 and the outer wall of the shock absorbing block 14 are provided with anti-slip grooves to increase the resistance, so that the resistance of the shock absorbing block 14 in sliding becomes larger, thereby avoiding the shock absorbing block 14 from vibrating due to the influence of elastic force. At the same time, since the friction between the shock absorbing cavity 13 and the shock absorbing block 14 is increased, the vibration force is further reduced.

[0039] like Figure 3 As shown, the medical saw assembly 4 includes a saw blade 41, a saw tooth 42 is provided at the front end of the saw blade 41, and a chip removal hole 43 is provided at one end of the saw blade 41 close to the saw tooth 42 to reduce the weight of the saw blade 41; by providing the saw tooth 42, the effect of osteotomy can be achieved; by providing the chip removal hole 43, when osteotomy is performed by the saw tooth 42, bone chips can be discharged through the chip removal hole 43, and the weight of the saw blade 41 is reduced at the same time.

[0040] like Figure 4 As shown, the driving mechanism 3 includes a motor 36, which is fixedly connected to the body 1, and a rotating rod 33 is provided at the output end of the motor 36. A through hole 44 is provided at the end of the saw blade 41, and the saw blade 41 is sleeved on the rotating rod 33 through the through hole 44. A slot 45 connected to the outside is provided on the through hole 44, and the slot diameter of the slot 45 is smaller than the aperture of the through hole 44. A spline 34 is fixedly connected to the rotating rod 33, and the rotating rod 33 is clamped with the slot 45 through the spline 34; by setting the motor 36, when osteotomy is performed, the motor 36 is started to rotate the rotating rod 33, and then the saw blade 41 is driven to swing, so as to perform osteotomy on the patient; by setting the slot 45 and the spline 34, when the rotating rod 33 rotates, the spline 34 is clamped with the slot 45, so that the saw blade 41 can always follow the rotation of the rotating rod 33.

[0041] like Figure 5As shown, the rotating rod 33 is fixedly connected with a matching rod 32, and the diameter of the matching rod 32 is smaller than the groove diameter of the slot 45, so that the rotating rod 33 is separated from the through hole 44 to take out the medical saw assembly 4, and the matching rod 32 is fixedly connected with a pressing block 31, and the pressing block 31 extends to the outside of the fuselage 1, and the rotating rod 33 is fixedly connected with a clamping block 37, and the bottom ends of the rotating block and the clamping block 37 are slidably connected with a sleeve 35, and a key groove that cooperates with the spline 34 is opened on the sleeve 35, and the sleeve 35 is fixedly connected to the output end of the motor 36, and a second spring 38 is fixedly connected inside the sleeve 35, and the end of the second spring 38 away from the sleeve 35 is fixedly connected to the clamping block 37; when the medical saw assembly 4 needs to be replaced, The pressing block 31 is manually pressed downward, so that the rotating rod 33 and the matching rod 32 slide downward, the rotating rod 33 is separated from the through hole 44, and the matching rod 32 is located in the through hole 44. Since the diameter of the matching rod 32 is smaller than the groove diameter of the slot 45, the medical saw assembly 4 can be taken out along the slot 45, and then the medical saw assembly 4 to be replaced is inserted inward, and the pressing of the pressing block 31 is canceled, and the elastic force of the second spring 38 is released, so that the rotating rod 33 and the matching rod 32 are reset, and the matching rod 32 is separated from the through hole 44, while the rotating rod 33 is sleeved with the through hole 44, and the spline 34 is engaged with the slot 45, so that the medical saw assembly 4 is easily replaced, saving time and effort, and easy to operate.

[0042] like Figure 1 As shown, a socket slot 12 is provided on the body 1, and a baffle is inserted into the socket slot 12 to block bone chips to avoid affecting the doctor's operation and the recognition accuracy of the navigation system.

[0043] like Figure 1 As shown, a switch 21 is provided on the handheld part 2 , and the switch 21 is electrically connected to the driving mechanism 3 , so that the driving mechanism 3 can be controlled to be turned on and off by the switch 21 .

[0044] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A medical navigation power system, comprising a fuselage, characterized in that: The lower end of the fuselage is fixedly connected with a hand-held part, and a driving mechanism is provided on the fuselage, and the driving mechanism is connected with a medical saw assembly so that the medical saw assembly can swing; The fuselage is provided with an adhesive end corresponding to the identification direction, and each adhesive end is affixed with a marking point patch, so that the navigation system can identify through the marking point patch, and the specific number of marking point patches on each adhesive end is not less than four.

2. A medical navigation power system according to claim 1, characterized in that: The marking point patches are highly reflective patches.

3. A medical navigation power system according to claim 1, characterized in that: A shock absorbing cavity is provided in the fuselage, and a shock absorbing block is provided in the shock absorbing cavity. The shock absorbing block can slide relative to the shock absorbing cavity, and both ends of the shock absorbing block are fixedly connected with a first spring, and one end of the first spring away from the shock absorbing block is fixedly connected to the shock absorbing cavity.

4. A medical navigation power system according to claim 3, characterized in that: The inner wall of the shock absorbing cavity and the outer wall of the shock absorbing block are both provided with anti-slip grooves to increase the resistance.

5. A medical navigation power system according to claim 1, characterized in that: The medical saw assembly comprises a saw blade, the front end of which is provided with saw teeth, and one end of the saw blade close to the saw teeth is provided with a chip removal hole for reducing the weight of the saw blade.

6. A medical navigation power system according to claim 5, characterized in that: The driving mechanism includes a motor, which is fixedly connected to the machine body. A rotating rod is provided at the output end of the motor. A through hole is provided at the end of the saw blade. The saw blade is sleeved on the rotating rod through the through hole. A slot connected to the outside is provided on the through hole. The slot diameter is smaller than the aperture diameter of the through hole. A spline is fixedly connected to the rotating rod. The rotating rod is clamped with the slot through the spline.

7. A medical navigation power system according to claim 6, characterized in that: A matching rod is fixedly connected to the rotating rod, and the diameter of the matching rod is smaller than the diameter of the slot, so that the medical saw assembly can be taken out after the rotating rod is separated from the through hole. A pressing block is fixedly connected to the matching rod, and the pressing block extends outside the machine body.

8. A medical navigation power system according to claim 7, characterized in that: A clamping block is fixedly connected to the rotating rod, and a sleeve is slidably connected to the bottom ends of the rotating block and the clamping block. A key slot matching the spline is opened on the sleeve, and the sleeve is fixedly connected to the output end of the motor. A second spring is fixedly connected inside the sleeve, and the end of the second spring away from the sleeve is fixedly connected to the clamping block.

9. A medical navigation power system according to claim 1, characterized in that: A socket slot is provided on the machine body, and a baffle is plugged into the socket slot to block bone chips.

10. The medical navigation power system according to claim 1, characterized in that: A switch is arranged on the handheld part, and the switch is electrically connected to the driving mechanism.

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