CN217772504U - Fixing device for tracer - Google Patents
Fixing device for tracer Download PDFInfo
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- CN217772504U CN217772504U CN202221279474.0U CN202221279474U CN217772504U CN 217772504 U CN217772504 U CN 217772504U CN 202221279474 U CN202221279474 U CN 202221279474U CN 217772504 U CN217772504 U CN 217772504U
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Abstract
The invention discloses a fixing device for a tracer, which belongs to the field of surgical robots and comprises a tracer unit with a circular marking point, a first fixing clamp assembly, a second fixing clamp assembly and a spicule, wherein the spicule is implanted on a tracked object, the first fixing clamp assembly is installed on the spicule, the second fixing clamp assembly is installed on the first fixing clamp assembly, and the first fixing clamp assembly comprises: the front cavity shell, the sliding part, the spring, the driving part, the driving screw rod, the clamp spring and the rear cavity shell; preceding chamber shell and back chamber shell pass through fixing bolt and connect, slider and driving piece setting are inside the chamber shell, the drive lead screw is connected the driving piece drive the slider locking the spicule, there is the spring hole preceding chamber shell intracavity and slider clamping surface, downthehole spring can will during the unblock of drive lead screw the slider separation, the utility model is used for the fixed of spike ware, simple structure, convenient operation, the centre gripping is reliable.
Description
Technical Field
The utility model relates to a surgical robot field, concretely relates to a fixing device structure for tracer.
Background
During the bone surgery, the position of the surgery is accurately identified by the tracer which is arranged on the patient, so that the tracer is firmly arranged near the surgery position of the patient. In the prior art, patent No. CN202121823943.6 discloses a fixing device for a tracer and a surgical robot system, when the device is used for installing and fixing the tracer, a doctor needs to install a first bone pin in a first clamping mechanism, drill the first bone pin into a human bone through an electric drill and the like, then install a second bone pin in a second clamping mechanism, switch a locking mechanism to an unlocking state, drill the second bone pin into the human bone through the electric drill and the like at a proper angle, switch the locking mechanism to the locking state, and install the tracer on the first clamping mechanism or the second clamping mechanism;
patent No. CN202121799958.3 discloses a fixing device and a surgical robot system for a tracer, when the tracer is required to be installed, a first bone pin is driven into a human bone by means of, for example, an electric drill, etc., then the first bone pin is passed through any one of the first mounting holes, the first bone pin is passed through, and the fixing device is rotated around the first bone pin until the mounting position of the second bone pin is brought to a proper position, then the second bone pin is passed through any one of the second mounting holes and driven into the human bone by means of, for example, an electric drill, etc., then a slider can be switched to a locking position by a driving mechanism, and finally the tracer can be installed on a housing.
The spicule must be implanted into the human bone with the electric drill after passing through one of the mounting holes or two mounting limit positions in the above two patent mounting modes, and the driving mechanisms for locking and unlocking of the above two patents are arranged on the side, and the defects are as follows: whole process is complicated, need adjust suitable angle and suitable position, and the spicule passes the mounting hole after, uses the electric drill to rotate the spicule, and visual mounting hole is the adverse factor of rotatory in-process, the locking and the unblock mechanism of this structure in side promptly patient's skin top, and the patient is unfavorable for the doctor operation with unblock by close.
Disclosure of Invention
In order to solve the problem, the utility model aims to provide a tracer fixing device convenient operation, simple structure.
In order to realize the purpose, the utility model discloses the technical scheme who adopts does: a fixture for a tracer, comprising: the bone needle, first mounting fixture subassembly, second mounting fixture subassembly, spike ware unit, first mounting fixture subassembly is used for fixed connection bone needle, the second mounting fixture subassembly is used for fixed connection spike ware unit, second mounting fixture subassembly fixed connection is on first mounting fixture subassembly.
Further, the first tie down cleat assembly includes: the clamping device comprises a front cavity shell, a sliding part, a spring, a driving part, a driving screw rod, a clamp spring, a rear cavity shell, a second clamp assembly connecting rod, a bolt A and a fixing bolt; the front cavity shell and the rear cavity shell are tightly connected through a fixing bolt, the sliding piece and the driving piece are arranged inside the cavity shell, the driving screw rod is connected with the driving piece to drive the sliding piece to lock the bone needle, a spring hole is formed in the cavity of the front cavity shell and the clamping surface of the sliding piece, and the spring in the hole can separate the sliding piece when the driving screw rod is unlocked.
Furthermore, the front cavity shell is provided with two waist-shaped through grooves, the two spicules penetrate through the two waist-shaped through grooves, and the waist-shaped through grooves can adapt to different intervals and gradients.
Furthermore, the surfaces of the front cavity shell cavity and the sliding part contacting with the bone needle can be planes, knurled surfaces and other surfaces which are beneficial to firm clamping.
Furthermore, the sliding part and the driving part are provided with inclined wedge surfaces with a certain angle, and the driving screw rod rotates to force the driving part to vertically exert force on the sliding part, so that the sliding part moves to lock the spicule.
Still further, the driving screw rod comprises a screwing handle, a screw rod and a tail end shaft, the diameter of the tail end shaft is smaller than that of the screw rod, the length of the tail end shaft is larger than the thickness of the driving piece, and the tail end shaft can penetrate through the hole in the driving piece. The end face of the end shaft is connected with the screw rod, a limiting groove is formed in the end shaft, and the clamping spring is installed on the limiting groove and used for limiting the driving screw rod to be separated from the driving piece.
Furthermore, the rear cavity shell is provided with an anti-rotation groove corresponding to the width of the driving piece so as to limit the rotation of the driving piece during vertical movement.
Furthermore, the front cavity shell is provided with two threaded holes fixed with the rear cavity shell, the rear cavity shell is provided with through holes corresponding to the front cavity shell, and the fixing bolts are used for connecting and fixing the front cavity shell and the rear cavity shell.
Furthermore, there is the lead screw just second anchor clamps subassembly connecting rod one end the lead screw has radial pinhole A, the front chamber shell has the screw thread that matches with second anchor clamps subassembly connecting rod, the screw hole side have with the pinhole A of bolt A tight fit, second anchor clamps subassembly connecting rod precession behind the screw hole on the front chamber shell, bolt A connects the front chamber shell with second anchor clamps subassembly connecting rod prevents that second anchor clamps subassembly connecting rod is not hard up.
The second clamp assembly comprises a second clamp, an angle adjusting rotating shaft, a screwing bolt, a tracer unit connecting rod and a plug pin B.
The second clamp is provided with a locking hole and is connected with the second clamp component connecting rod.
One or more thickness reducing holes and locking grooves communicated with the locking holes are formed in the positions close to the locking holes, the second clamp is provided with a through hole for the screwing bolt to pass through, and the screwing bolt passes through the through hole of the second clamp and is connected with the first threaded hole in the angle adjusting rotating shaft.
The regulation angle pivot is radially provided with the confession the second screw hole that tracer unit connecting rod is connected, the second screw hole side of regulation angle pivot is provided with the pinhole B that link up the screw thread jade wall, tracer unit connecting rod precession behind the second screw hole, bolt B connects the regulation angle pivot with tracer unit connecting rod prevents tracer unit connecting rod is not hard up.
Compared with the prior art, the utility model has the advantages that:
1. the utility model provides a pair of a fixing device structure for tracer, owing to be two long logical grooves on the anchor clamps that supply two spicules to pass, can adapt to the interval of two different arbitrary spicules, and the clamping face is the plane can adapt to the different gradient of spicule.
2. The driving screw rod on the first clamp assembly is operated above, so that the doctor can operate and support the first clamp assembly conveniently.
3. According to the utility model provides a structure, doctor can directly implant two spicules at the operation in-process of carrying out, even the spicule has a bit the slope also can be with the device locking spicule of this structure, and is more scientific, simple to doctor's operation.
4. The utility model discloses a patient is not pressed close to at the top to locking and release mechanism, safer, reasonable, science.
Drawings
Fig. 1 is the utility model discloses a fixing device's for tracer structural schematic.
Fig. 2 is an exploded view of the first mounting fixture assembly of the present invention.
Fig. 3 is a front cavity shell diagram of the first fixing clamp of the present invention.
Fig. 4 is a drawing of a sliding member of the first fixing jig of the present invention.
Fig. 5 is a rear cavity shell view of the first fixing clamp of the present invention.
Figure 6 is a second clamp assembly connecting rod diagram of the first fixing clamp of the present invention.
Fig. 7 is an exploded view of the second mounting clip assembly of the present invention.
Figure 8 is a tracer unit connection bar diagram of a second mounting fixture assembly of the present invention.
Wherein:
1-a first stationary clamp assembly; 2-a second stationary clamp assembly; 3-spicule; 4-a tracer unit;
11-a front cavity shell, 12-a sliding part, 13-a spring, 14-a driving part, 15-a driving screw rod, 16-a snap spring, 17-a rear cavity shell, 18-a fixing bolt, 19-a second clamp assembly connecting rod and 20-a bolt A;
22-a second clamp, 23-an angle adjusting rotating shaft, 24-a tracer unit connecting rod, 25-a bolt B and 26-a screwing bolt;
31-first spicules 32-second spicules;
112-a first waist-shaped groove supply, 112-a second waist-shaped groove; 115-first spring hole, 122-second spring hole;
122-a first cammed surface, 142-a second cammed surface; 141-a drive aperture; 116-connecting rod thread, 117-side hole, 118-thread;
151-drive screw rod section, 152-end shaft, 153-jump ring groove;
(171, 172) -fixing holes, 173-limiting grooves; (113, 114) -a threaded hole; 191-a screw mandrel;
221-locking hole, 222-thickness reducing hole, 223-locking groove and 224-second clamp fixing hole;
231 a first threaded hole, 232 a second threaded hole, 233 a latch hole;
242-rod section, 242 bolt radial holes; 261-screw section.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a fixing device for a tracer according to the present invention. The method comprises the following steps: two spicules 3; a first fixture assembly 1 for fixedly connecting the spicules; a second stationary clamp assembly 2 fixedly connected to the first stationary clamp assembly; a tracer unit 4 fixedly connected to the second stationary fixture assembly;
fig. 2 is an exploded view of the first mounting clip assembly of the present invention. As shown in fig. 2 to 6, the first fixing assembly jig includes: the clamp comprises a front cavity shell 11, a sliding piece 12, a spring 13, a driving piece 14, a driving screw rod 15, a clamp spring 16, a rear cavity shell 17, a second clamp assembly connecting rod 19, a bolt A20 and a fixing bolt 18. The front cavity shell 11 is provided with a first waist-shaped groove 111 for the first spicule 31 to penetrate through and a second waist-shaped groove 112 for the second spicule 32 to penetrate through, the minimum distance between the first spicule 31 and the second spicule 32 is larger than the minimum distance X between the first waist-shaped groove 111 and the second waist-shaped groove 112, the maximum distance between the first spicule 31 and the second spicule 32 is smaller than the maximum distance Y between the first waist-shaped groove 111 and the second waist-shaped groove 112, and the distance between the first spicule 31 and the second spicule 32 can be any value from X to Y.
The front cavity shell 11 is internally provided with a hole 115 for placing the spring 13, the sliding piece 12 is clamped and correspondingly provided with a hole 122, the length of the spring 13 is larger than the sum of the depth of the hole 115 and the depth of the hole 122, and when the sliding piece 12 is unlocked, the spring 13 assists the sliding piece 12 to separate. The sliding member 12 and the driving member 14 are respectively provided with a wedge surface 121 and a wedge surface 142 with a certain angle, the driving member 14 is positioned in the cavity, and the driving member 14 is vertically displaced downwards to force the sliding member 12 to push the locking bone needle 31 and the bone needle 32 forwards.
The driving member 14 vertically upwardly displaces the sliding member 12 to release the locking force to the bone pins 31 and 32, the gap between the two clamping surfaces is larger than the diameter of the bone pins, and the bone pins 31 and 32 are separated from the first fixing jig assembly 1. The driving screw 15 is provided with a driving screw segment 151 and a tail end shaft 152, and the tail end shaft is provided with a clamp spring groove 153.
The driving screw rod segment 151 on the driving screw rod 15 is screwed into the thread 118 on the front cavity shell 11, the tail end shaft 152 passes through the hole 141 of the driving piece 14, and the clamp spring 16 is clamped into the clamp spring groove 153, so that the driving screw rod 15 is prevented from being separated from the driving piece.
The rear cavity housing 17 is provided with a stopper groove 173, and the fixing bolt 18 is screwed into the screw hole 113 and the screw hole 114 of the front cavity housing through the hole 171 and the hole 172 to lock the front cavity housing 11 and the rear cavity housing 17.
The driving member 14 is embedded in the limiting groove 173 on the rear cavity shell 17 to prevent the driving screw 15 from rotating and driving the driving member 14 to rotate. The lead screw 191 on the second clamp assembly connecting rod 19 is threaded into the connecting rod thread 116 on the front cavity housing 11 and the pin a20 is inserted from the hole 117 in the side of the front cavity housing 11 into the radial hole 192 on the second clamp assembly connecting rod 19, preventing the second clamp assembly connecting rod 19 from loosening.
The surface of the tracer unit 4 is provided with 3-4 anisotropic circular patches, the surface of each circular patch is made of a material capable of reflecting infrared light, and an X-ray opaque ball can be arranged inside each circular patch, so that the tracer can be identified by an optical tracker and can also be identified by scanning of a CT (computed tomography) machine.
Fig. 7 is an exploded view of the second mounting clip assembly of the present invention. As shown in fig. 7 to 8, the second fixing assembly jig includes: a second clamp 22, an angle adjusting rotating shaft 23, a screwed bolt 26, a tracer unit connecting rod 24 and a bolt B25. Second anchor clamps 22 sets up the locking groove 223 of mutual intercommunication, locking hole 221, reduce thick hole 222, it is provided with screw section 261 to revolve wrong bolt 26, angle regulation pivot 23 is provided with first screw hole 231, second screw hole 232, bolt hole 233, tracer unit connecting rod 24 is provided with screw section 241, the radial hole 242 of bolt, it passes hole 224 and is connected with first screw hole 231 to revolve screw section 261 on the bolt 26 to revolve, screw section 241 precession second screw hole 232 on tracer unit connecting rod 24, bolt B25 passes through the radial hole 242 of bolt hole 233 connecting bolt, prevent that tracer unit connecting rod 24 from becoming flexible.
In the unlocking state, the angle-adjusting rotating shaft 23 can be adjusted in angle according to the direction of the tracer unit 4, the second clamp can be adjusted in axial position according to the height of the tracer unit 4, the screwing bolt 26 is rotated, the locking groove 223 is extruded, the locking hole 221 is deformed, and the deformation is performed to the locking function of the locking hole on the second clamp component connecting rod 19.
The above embodiments are only for explaining the technical idea of the utility model, and the protection scope of the utility model can not be limited thereby, and any changes made on the basis of the technical solution according to the technical idea provided by the utility model all fall into the protection scope of the claims of the utility model. The technology not related to the utility model can be realized by the prior art.
Claims (10)
1. A fixture for a tracer, comprising: the method comprises the following steps:
two spicules (3);
a first fixation clamp assembly (1) for the fixed attachment of spicules;
a second stationary clamp assembly (2) fixedly attached to the first stationary clamp assembly;
a tracer unit (4) fixedly connected to the second stationary clamp assembly;
the first stationary clamp assembly (1) comprises:
a front cavity housing (11);
the rear cavity shell (17) is fixedly connected with the front cavity shell (11) through a fixing bolt (18);
a slide (12) disposed within the chamber housing;
a spring (13) disposed within the cavity of the front housing (11) and between the clamping surfaces of the slide (12);
a driving piece (14) and a driving screw rod (15), wherein the driving screw rod (15) is connected with the driving piece (14) to drive the sliding piece (12) to lock the spicule (3).
2. A fixing device for tracers, according to claim 1, characterized in that:
be equipped with first waist type groove (111) on front chamber shell (11) and supply first spicule (31) to run through and second waist type groove (112) to supply second spicule (32) to run through, the minimum interval X of first spicule (31) and second spicule (32) is for being greater than first waist type groove (111) and second waist type groove (112), the maximum interval Y of first spicule (31) and second spicule (32) is for being greater than the maximum interval Y of first waist type groove (111) and second waist type groove (112), the distance of first spicule (31) and second spicule (32) is the arbitrary value between X to Y.
3. A fixture for a tracer according to claim 1, wherein:
the spring type front cavity is characterized in that a first spring hole (115) for placing a spring (13) is formed in the cavity of the front cavity shell (11), a second spring hole (122) is correspondingly formed in the clamping surface of the sliding part (12), the length of the spring (13) in a normal state is larger than the sum of the depth of the first spring hole (115) and the depth of the second spring hole (122), and when the sliding part (12) is unlocked, the spring (13) assists the sliding part (12) to be separated.
4. A fixture for a tracer according to claim 2, wherein:
the sliding part (12) and the driving part (14) are respectively provided with a first wedge surface (121) and a second wedge surface (142) which are matched with each other, the driving part (14) is positioned in the cavity shell, and the driving part (14) vertically displaces downwards to force the sliding part (12) to push and lock the first bone needle (31) and the second bone needle (32) forwards; the driving piece (14) moves vertically upwards, the sliding piece (12) releases locking force on the first bone needle (31) and the second bone needle (32), and when the gap between the two clamping surfaces is larger than the diameter of the bone needle (3), the first bone needle (31) and the second bone needle (32) are separated from the first fixing clamp assembly (1).
5. A fixture for a tracer according to claim 1, wherein:
the driving screw rod (15) is provided with a driving screw rod section (151) and a tail end shaft (152), and the tail end shaft (152) is provided with a clamp spring groove (153) and a clamp spring (16) matched with the clamp spring groove (153); the driving screw rod section (151) is screwed into a thread (118) on the front cavity shell (11), the tail end shaft (152) penetrates through a driving hole (141) of the driving piece (14), and the clamp spring (16) is clamped into a clamp spring groove (153) to prevent the driving screw rod (15) from being separated from the driving piece.
6. A fixture for a tracer according to claim 1, wherein:
the fixing bolt (18) is screwed into the threaded holes (113 and 114) on the front cavity shell (11) through the fixing holes (171 and 172) on the rear cavity shell (17) to lock the front cavity shell (11) and the rear cavity shell (17); the rear cavity shell (17) is further provided with a limiting groove (173), the driving piece (14) is embedded in the limiting groove (173), the driving screw rod (15) is prevented from rotating, and therefore the driving piece (14) is driven to rotate.
7. A fixture for a tracer according to claim 1, wherein:
first mounting fixture subassembly (1) still includes second anchor clamps subassembly connecting rod (19) and bolt A (20), lead screw (191) on second anchor clamps subassembly connecting rod (19) are preceeded connecting rod screw thread (116) on preceding chamber shell (11), bolt A (20) insert radial hole (192) to second anchor clamps subassembly connecting rod (19) from side hole (117) of preceding chamber shell (11), prevent that second anchor clamps subassembly connecting rod (19) are not hard up.
8. A fixture for a tracer according to claim 1, wherein:
the second fixed clamp assembly (2) comprises a second clamp (22), an angle adjusting rotating shaft (23), a screwing bolt (26), a tracer unit connecting rod (24) and a bolt B (25); second anchor clamps (22) set up locking groove (223), locking hole (221) and subtract thick hole (222) that communicate each other, it is provided with screw section (261) to revolve wrong bolt (26), angle regulation pivot (23) is provided with first screw hole (231), second screw hole (232) and bolt hole (233), tracer unit connecting rod (24) are provided with screw section (241) and the radial hole of bolt (242), screw section (261) passes second anchor clamps fixed orifices (224) and is connected with first screw hole (231), screw section (241) precession second screw hole (232), bolt B (25) pass through bolt hole (233) are connected the radial hole of bolt (242), prevent tracer unit connecting rod (24) are not hard up.
9. A fixture for a tracer according to claim 8, wherein:
in the unblock state, angle regulation pivot (23) can be based on tracer unit (4) direction needs angle regulation, second anchor clamps (22) can be based on tracer unit (4) altitude mixture control axial position rotates to revolve and revolves wrong bolt (26), extrudees locking groove (223), makes locking hole (221) produce deformation, and deformation is to the production locking function that makes locking hole (221) to second anchor clamps subassembly connecting rod (19).
10. A fixing device for tracers, according to claim 1, characterized in that:
the tracer unit (4) is provided with 3-4 anisotropic circular patches on the surface, the surface of each circular patch is made of a reflective infrared light material, and an X-ray opaque small ball can be arranged inside each circular patch, so that the tracer can be identified by an optical tracker and can also be identified by scanning of a CT (computed tomography) machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221279474.0U CN217772504U (en) | 2022-05-25 | 2022-05-25 | Fixing device for tracer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221279474.0U CN217772504U (en) | 2022-05-25 | 2022-05-25 | Fixing device for tracer |
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| Publication Number | Publication Date |
|---|---|
| CN217772504U true CN217772504U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221279474.0U Active CN217772504U (en) | 2022-05-25 | 2022-05-25 | Fixing device for tracer |
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| CN (1) | CN217772504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066703A (en) * | 2023-01-30 | 2023-05-05 | 北京玛格纳科技有限公司 | Locking device of tracer and tracer |
-
2022
- 2022-05-25 CN CN202221279474.0U patent/CN217772504U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066703A (en) * | 2023-01-30 | 2023-05-05 | 北京玛格纳科技有限公司 | Locking device of tracer and tracer |
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