CN212438753U - Water-cooled grinding head for operation - Google Patents
Water-cooled grinding head for operation Download PDFInfo
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- CN212438753U CN212438753U CN202021940791.3U CN202021940791U CN212438753U CN 212438753 U CN212438753 U CN 212438753U CN 202021940791 U CN202021940791 U CN 202021940791U CN 212438753 U CN212438753 U CN 212438753U
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Abstract
The utility model discloses a water-cooling bistrique is used in operation, including bistrique (1), bracing piece subassembly and cooling device the one end of bistrique (1) is equipped with the mill handle, the mill handle wears to establish the corresponding position of bracing piece subassembly and stretches into in shell (3), shell (33) cup joint fixedly with cooling device's corresponding position be equipped with installation cover (53) and motor among the cooling device, the end of stretching into of mill handle stretches into in installation cover (53) and is connected with the output of motor. The utility model discloses drive the bistrique by the motor and rotate, during cooling water flowed into the bracing piece subassembly through cooling device to along the mill handle outflow cooling bistrique, carry out the operation of grinding bone tissue from this, simplified mounting structure, alleviateed weight, reduced the space that occupies, stability is high, and the security is good.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to water-cooling bistrique is used in operation.
Background
At present, in the orthopedic surgery in the surgical operation, the grinding head is commonly used for grinding the operation position of a bone, but the grinding head is easy to generate heat when rotating at a high speed, the grinding quality of the edge part can be directly influenced after the grinding head becomes hot, namely, the grinding amount is reduced, so that the grinding is not in place, or the operation time is prolonged, heat is transmitted along the grinding handle, if the temperature is higher, other damages to the operation position can be caused, and meanwhile, the service life of the grinding assembly is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a can carry out refrigerated water-cooling bistrique for operation to the bistrique at bone tissue grinding operation in-process.
The technical scheme of the utility model as follows:
the utility model provides a water-cooling bistrique is used in operation, includes bistrique, bracing piece subassembly and cooling device the one end of bistrique is equipped with the grinding handle, the cover is equipped with the shell on the bracing piece subassembly, the grinding handle wears to establish the corresponding position of bracing piece subassembly and stretches into in the shell, the shell cup joints fixedly with cooling device's corresponding position be equipped with installation cover and motor among the cooling device, the end of stretching into of grinding handle stretches into in the installation cover and is connected with the output of motor, and during the use, cooling water flows through cooling device and shell in proper order to enter the bracing piece subassembly, along grinding handle flow direction bistrique to reach the purpose of cooling bistrique.
By adopting the structure, the grinding head penetrates through the outer pipe and extends into the shell to be connected with the output end of the motor, and the corresponding position of the support rod component is sleeved with the shell, so that the connection between the grinding head and the motor is not influenced by the outside; because there is special equipment to absorb the piece and the bloody water that polish and form during the operation, the cooling water is discharged after also being absorbed by equipment in the lump, can not cause the influence to the operation, consequently, can suitably increase the rotational speed of grinding the handle to shorten the operation time, and the surface of a wound of bone tissue grinding position is neat stable, can improve bone tissue grinding or prosthetic treatment, and the wound resumes sooner, control sawing degree of depth and width that also can be fine, the simple operation, simple to operate.
In order to simplify the structure and facilitate the leading-out of cooling water, the support rod assembly preferably comprises an outer pipe, a sleeve and a connecting pipe, a step hole is arranged in the outer shell, a connecting through hole is arranged at the small hole end of the step hole, the connecting pipe is sleeved in the connecting through hole, an annular cavity is formed by the outer wall of the connecting pipe and the inner wall of the small hole of the step hole, and a water inlet hole communicated with the annular cavity is arranged on the connecting pipe; a sleeve is sleeved in the connecting pipe, one side of the sleeve is provided with a section of open slot, and the water inlet hole is communicated with the open slot; the grinding device is characterized in that an outer pipe is sleeved in the sleeve, a water outlet hole is formed in the position, corresponding to the opening groove, of the outer pipe, the grinding handle extends into the outer pipe, an annular water outlet groove is formed by the outer wall of the grinding handle and the inner wall of the outer pipe, and the annular water outlet groove is communicated with the water outlet hole.
In order to simplify the structure and facilitate the installation, preferably, a fixing sleeve is sleeved in the installation sleeve, a fixing hole is sleeved in the fixing sleeve, and the fixing hole is sleeved on the outer wall of the connecting pipe; the grinding handle comprises a first bending section and a second bending section which have the same diameter, a transition bending section is connected between the two bending sections, the first bending section and the second bending section extend into the outer tube, and the diameter of the transition bending section is smaller than that of the first bending section; the output end of the motor is connected with a guide rod, a connecting cylinder is sleeved on the guide rod, and the second bending section extends into the fixing hole and is sleeved with the connecting cylinder.
In order to prevent the leakage of the cooling water, preferably, a first sealing ring is embedded in the fixing hole, and the inner side wall of the first sealing ring is abutted to the outer wall of the second bending section in an attaching manner.
In order to simplify the structure and facilitate the leading-out of cooling water, the cooling device preferably comprises a water cooling sleeve and a handle with a water injection hole, the handle is fixedly sleeved on the outer side wall of the motor, a connecting hole is formed in the handle, a pressing sleeve is sleeved on the outer side of the water cooling sleeve, a groove is wound on the outer wall of the water cooling sleeve, a cooling water channel communicated with the cavity structure is formed between the inner side wall of the pressing sleeve and the groove, and a notch is formed in one end of the water cooling sleeve; the water cooling sleeve is inserted into the mounting sleeve, the water cooling sleeve is inserted into the large hole end of the stepped hole of the shell, a gap is reserved between the end surface of the insertion end of the mounting sleeve and the stepped surface of the stepped hole of the shell, a water passing groove communicated with the gap is formed, and the water passing groove is also communicated with the annular cavity in the shell;
the outer wall of the shell is provided with a circle of positioning grooves, the handle is provided with a stage, the middle of the stage is provided with a connecting hole, the step surface of the stage is provided with a water injection hole, one end of the water cooling jacket is sleeved on the outer wall of the lower end of the stage, the other end of the water cooling jacket is sleeved on the outer wall of the shell, one end of the pressing jacket is sleeved on the outer wall of the higher end of the stage, the position of the other end, corresponding to the positioning grooves, is provided with a circle of bosses, and the bosses are buckled in the positioning grooves; the step surface of the stage, the corresponding position of the inner wall of the pressing sleeve and the end surface of the sleeving end of the water-cooling sleeve form a water outlet groove communicated with the water injection hole, one end of the water-cooling sleeve corresponding to the water outlet groove is provided with a transition groove, one end of the transition groove is communicated with the cooling water channel, the other end of the transition groove is communicated with the water outlet groove, and the cooling water flows into the water outlet groove from the water injection hole, flows into the cooling water channel through the transition groove, sequentially flows into the cavity structure through the notch and the water passing groove.
In order to facilitate installation, preferably, a step hole is formed in the water cooling sleeve, an installation sleeve is arranged in the step hole, one end of the installation sleeve extends into the step hole and is sleeved in the connecting hole, a step structure matched with the step hole is arranged on the outer side wall of the other end of the installation sleeve, the step structure is embedded in the step hole, and the step surfaces of the installation sleeve and the corresponding end of the step hole are abutted and limited.
In order to prevent the leakage of cooling water, preferably, a groove is arranged on the outer side wall of the mounting sleeve, a second sealing ring is embedded in the groove, and the outer side wall of the second sealing ring is abutted with the corresponding position of the inner side wall of the connecting hole in a fit manner; a third sealing ring is embedded on the inner side wall of the water cooling sleeve, and the inner side wall of the third sealing ring is abutted to the corresponding position of the outer wall of the lower end of the step section in a laminating manner so as to prevent cooling water from flowing into the motor.
In order to facilitate the injection of cooling water, preferably, a water injection pipe is provided on the handle, and the water injection pipe is communicated with the water injection hole.
For the convenience of installation, the bending curvatures of the grinding handle, the outer pipe, the sleeve and the connecting pipe are preferably the same.
Has the advantages that: the utility model discloses drive the bistrique by the motor and rotate, during cooling water flowed into the bracing piece subassembly through cooling device to along the mill handle outflow cooling bistrique, carry out the operation of grinding bone tissue from this, simplified mounting structure, alleviateed weight, reduced the space that occupies, stability is high, and the security is good.
Drawings
Fig. 1 is a schematic view of the installation structure of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of fig. 1 at B.
Fig. 4 is an enlarged view of fig. 1 at C.
Fig. 5 is an enlarged view of fig. 1 at D.
Fig. 6 is an enlarged view of fig. 1 at E.
Figure 7 is an exploded view of the grater and support rod assembly.
Fig. 8 is a schematic structural view of the housing.
FIG. 9 is a schematic diagram of the structure of a water jacket.
Fig. 10 is a schematic structural view of the handle.
Fig. 11 is a schematic structural view of the support rod assembly and the housing.
Fig. 12 is an enlarged view of fig. 11 taken at F.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11 and fig. 12, the present invention includes a grinding head 1, a support rod assembly and a cooling device, wherein a grinding handle is disposed at one end of the grinding head 1, the support rod assembly includes an outer tube 2, a sleeve 21 and a connecting tube 22, a stepped hole is disposed in the outer shell 3, a connecting through hole 31 is disposed at a small hole end of the stepped hole, the connecting tube 22 is sleeved in the connecting through hole 31, an annular cavity is formed by an outer wall of the connecting tube 22 and an inner wall of the small hole of the stepped hole, and a water inlet 32 communicated with the annular cavity is disposed on; a sleeve 21 is sleeved in the connecting pipe 22, an open slot is formed in one side of the sleeve 21, and the water inlet 32 is communicated with the open slot; the outer pipe 2 is sleeved in the sleeve 21, the grinding handle extends into the outer pipe 2, an annular water outlet groove is formed by the outer wall of the grinding handle and the inner wall of the outer pipe 2, and a water outlet hole 23 communicated with the annular water outlet groove is formed in the pipe wall of the outer pipe 2; the bending curvatures of the grinding handle, the outer pipe 2, the sleeve 21 and the connecting pipe 22 are the same.
The cooling device comprises a water cooling jacket 4 and a handle 41 with a water injection hole 412, the water injection hole 412 is communicated with a water injection pipe, the handle 41 is fixedly sleeved on the outer side wall of the motor, a connecting hole 415 is formed in the handle 41, a pressing jacket 5 is sleeved on the outer side of the water cooling jacket 4, a groove 42 is wound on the outer wall of the water cooling jacket 4, a cooling water channel communicated with a cavity structure is formed between the inner side wall of the pressing jacket 5 and the groove 42, and a notch is formed in one end of the water cooling jacket 4; the water cooling jacket 4 is inserted with a mounting jacket 53, the water cooling jacket 4 is inserted into the big hole end of the step hole of the shell 3, a gap is left between the end surface of the insertion end of the mounting jacket 53 and the step surface of the step hole of the shell 3, a water passing groove 331 communicated with the gap is formed, and the water passing groove 331 is also communicated with the annular cavity in the shell 3.
A circle of positioning grooves 33 are formed in the outer wall of the shell 3, a platform stage 411 is arranged on the handle 41, a connecting hole 415 is formed in the middle of the platform stage 411, a water injection hole 412 is formed in the step surface of the platform stage 411, one end of the water cooling jacket 4 is sleeved on the outer wall of the lower end of the platform stage 411, the other end of the water cooling jacket is sleeved on the outer wall of the shell 3, one end of the pressing jacket 5 is sleeved on the outer wall of the upper end of the platform stage 411, a circle of boss is arranged at the position, corresponding to the positioning grooves 33, of the other end of the pressing jacket, and the boss is buckled in; a water outlet groove 413 communicated with the water injection hole 412 is formed on the step surface of the stage 411, the corresponding position of the inner wall of the pressing sleeve 5 and the end surface of the sleeved end of the water cooling sleeve 4, a transition groove 414 is arranged at one end of the water cooling sleeve 4 corresponding to the water outlet groove 413, one end of the transition groove 414 is communicated with the cooling water channel, the other end of the transition groove 414 is communicated with the water outlet groove 413, and the cooling water flows into the water outlet groove 413 from the water injection hole 412, flows into the cooling water channel through the transition groove 414, sequentially flows into the cavity structure through the notch and the water passing groove 331.
The water cooling jacket 4 is provided with a step hole, a mounting sleeve 53 is arranged in the step hole, one end of the mounting sleeve 53 extends into the step hole and is sleeved in the connecting hole 415, the outer side wall of the other end of the mounting sleeve is provided with a step structure matched with the step hole, the step structure is embedded in the position of the step hole, and the mounting sleeve 53 and the step surface of the corresponding end of the step hole are mutually abutted and limited.
A fixing sleeve 531 is sleeved in the mounting sleeve 53, the fixing sleeve 531 is provided with a fixing hole, and the fixing hole is sleeved on the outer wall of the connecting pipe 22; the grinding handle comprises a first bending section 11 and a second bending section 12 which have the same diameter, a transition bending section 13 is connected between the two bending sections, the first bending section 11 and the second bending section 12 extend into the outer tube 2, and the diameter of the transition bending section 13 is smaller than that of the first bending section 11; the output end of the motor is connected with a guide rod 54, the guide rod 54 is sleeved with a connecting cylinder 541, and the second bending section 12 extends into the fixing hole and is sleeved with the connecting cylinder 541.
A first sealing ring 61 is embedded in the fixing hole, and the inner side wall of the first sealing ring 61 is abutted with the outer wall of the second bending section 12; a groove is formed in the outer side wall of the mounting sleeve 53, a second sealing ring 62 is embedded in the groove, and the outer side wall of the second sealing ring 62 is abutted with the corresponding position of the inner side wall of the connecting hole 415; a third sealing ring 63 is embedded on the inner side wall of the water cooling jacket 4, and the inner side wall of the third sealing ring 63 is abutted with the corresponding position of the outer wall of the lower end of the step section 411 in a fitting manner so as to prevent cooling water from flowing into the motor.
When the cooling device is used, cooling water sequentially flows through the cooling device and the shell 3, enters the supporting rod assembly and flows to the grinding head 1 along the grinding handle, so that the purpose of cooling the grinding head 1 is achieved.
The utility model discloses a use method as follows:
as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 7, fig. 11 and fig. 12, the grinding handle extends into the outer tube 2, the second bending section 12 penetrates through the outer tube 2 and extends into the housing 3, an extending end of the second bending section 12 extends into a fixing hole of the mounting sleeve 53 and is sleeved with one end of the connecting cylinder 541, and the other end of the connecting cylinder 541 is fixedly sleeved with the guide rod 54 connected to the output end of the motor; meanwhile, a sleeve 21 is sleeved on the outer tube 2, one side of the sleeve 21 is provided with a section of open slot, a connecting tube 22 is sleeved on the sleeve 21, the connecting tube 22 is fixedly sleeved with the connecting through hole 31, the outer wall of the grinding handle and the inner wall of the outer tube 2 form an annular water outlet groove, the water cooling jacket 4 is sleeved in the big hole end of the stepped hole of the shell 3, a gap is reserved between the end surface of the sleeved end of the water cooling jacket 4 and the stepped surface of the stepped hole to form a water passing groove 331, the water passing groove 331 is communicated with the annular cavity, and the connecting tube 22 is provided with a water inlet hole 32 communicated with the annular cavity; a water outlet hole 23 is formed in the outer tube 2 at a position corresponding to the opening groove, the grinding handle extends into the outer tube 2, an annular water outlet groove is formed by the outer wall of the grinding handle and the inner wall of the outer tube 2, and the annular water outlet groove is communicated with the water outlet hole 23.
Meanwhile, as shown in fig. 4, 6, 8, 9, 10 and 12, a pressing sleeve 5 is sleeved on the outer side of the water cooling sleeve 4, one end of the pressing sleeve 5 is sleeved with the handle 41, and forms a closed cavity structure with the water outlet groove 413, so that the cooling water can be prevented from leaking; the outer wall of the water cooling jacket 4 is wound with a groove 42, a cooling water channel communicated with the cavity structure is formed between the inner side wall of the pressing jacket 5 and the groove 42, and in order to improve the cooling efficiency, the spiral groove 42 is formed in the outer wall of the water cooling jacket 4, namely, the spiral cooling water channel is formed together with the pressing jacket 5, so that the passing time of water flow is prolonged, and the cooling efficiency can be improved; cooling water is injected from a water injection pipe (not shown), the cooling water flows into the water outlet groove 413 through the water injection hole 412, flows into the cooling water channel through the aqueduct 414, sequentially flows into the annular cavity through the notch and the water outlet groove 331, flows into the annular water outlet groove through the water inlet hole 32 and the water outlet hole 23, and flows to the working part of the grinding head 1 from the opening of the annular water outlet groove along the first bending section 11 of the grinding handle, and the temperature of the shell 3, the outer pipe 2, the sleeve 21 and the connecting pipe 22 can be cooled in the process.
In addition, in the process, the first sealing ring 61 embedded in the fixing hole can prevent the cooling water from flowing into the fixing hole of the mounting sleeve 53 along the gap between the second bending section 12 and the inner wall of the outer tube 2, and the cooling water is prevented from flowing into the motor position; a third sealing ring 63 is embedded on the inner side wall of the water cooling jacket 4, the inner side wall of the sealing ring 43 is abutted against the corresponding position of the outer wall of the lower end of the step section 411, and the sealing effect is achieved on the position of the water outlet groove 413; the outer side wall of the mounting sleeve 53 is provided with a second sealing ring 62, so that the secondary anti-leakage protection effect is achieved on the water inlet direction, and the use stability and the safety in the operation process are ensured.
The utility model discloses do not describe the part unanimously with prior art, do not describe herein any more.
The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.
Claims (9)
1. The utility model provides a water-cooling bistrique for operation which characterized in that: including bistrique (1), bracing piece subassembly and cooling device the one end of bistrique (1) is equipped with the mill handle, the cover is equipped with shell (3) on the bracing piece subassembly, the mill handle wears to establish bracing piece subassembly's corresponding position and stretches into in shell (3), shell (3) cup joint fixedly with cooling device's corresponding position be equipped with installation cover (53) and motor among the cooling device, the end of stretching into of mill handle stretches into in installation cover (53) and is connected with the output of motor, and during the use, cooling water flows through cooling device and shell (3) in proper order to enter into the bracing piece subassembly, along grinding handle flow direction bistrique (1) to reach the purpose of cooling bistrique (1).
2. A water-cooled grinding head for surgery according to claim 1, characterized in that: the support rod assembly comprises an outer pipe (2), a sleeve (21) and a connecting pipe (22), a step hole is formed in the shell (3), a connecting through hole (31) is formed in the small hole end of the step hole, the connecting pipe (22) is sleeved in the connecting through hole (31), an annular cavity is formed by the outer wall of the connecting pipe (22) and the inner wall of the small hole of the step hole, and a water inlet hole (32) communicated with the annular cavity is formed in the connecting pipe (22); a sleeve (21) is sleeved in the connecting pipe (22), one side of the sleeve (21) is provided with a section of open slot, and the water inlet hole (32) is communicated with the open slot; the grinding device is characterized in that an outer pipe (2) is sleeved in the sleeve (21), a water outlet hole (23) is formed in the position, corresponding to the opening groove, of the outer pipe (2), the grinding handle extends into the outer pipe (2), an annular water outlet groove is formed by the outer wall of the grinding handle and the inner wall of the outer pipe (2), and the annular water outlet groove is communicated with the water outlet hole (23).
3. A water-cooled grinding head for surgery according to claim 2, characterized in that: a fixed sleeve (531) is sleeved in the mounting sleeve (53), the fixed sleeve (531) is provided with a fixed hole, and the fixed hole is sleeved on the outer wall of the connecting pipe (22); the grinding handle comprises a first bending section (11) and a second bending section (12) which have the same diameter, a transition bending section (13) is connected between the two bending sections, the first bending section (11) and the second bending section (12) extend into the outer tube (2), and the diameter of the transition bending section (13) is smaller than that of the first bending section (11); the output end of the motor is connected with a guide rod (54), a connecting cylinder (541) is sleeved on the guide rod (54), and the second bending section (12) stretches into the fixing hole and is sleeved with the connecting cylinder (541).
4. A water-cooled grinding head for surgery according to claim 3, characterized in that: the fixing hole is internally embedded with a first sealing ring (61), and the inner side wall of the first sealing ring (61) is abutted to the outer wall of the second bending section (12).
5. A water-cooled grinding head for surgery according to claim 2, characterized in that: the cooling device comprises a water cooling jacket (4) and a handle (41) with a water injection hole, the handle (41) is fixedly sleeved on the outer side wall of the motor, a connecting hole (415) is formed in the handle (41), a pressing jacket (5) is sleeved on the outer side of the water cooling jacket (4), a groove (42) is formed in the outer wall of the water cooling jacket (4) in a winding mode, a cooling water channel communicated with the annular cavity structure is formed between the inner side wall of the pressing jacket (5) and the groove (42), and a notch is formed in one end of the water cooling jacket (4); a mounting sleeve (53) is inserted into the water cooling sleeve (4), the water cooling sleeve (4) is inserted into a large hole end of a step hole of the shell (3), a gap is reserved between the end surface of an insertion end of the mounting sleeve (53) and the step surface of the step hole of the shell (3), a water passing groove (331) communicated with the gap is formed, and the water passing groove (331) is also communicated with an annular cavity in the shell (3);
the outer wall of the shell (3) is provided with a circle of positioning grooves (33), the handle (41) is provided with a platform stage (411), the middle of the platform stage (411) is provided with a connecting hole (415), the step surface of the step stage (411) is provided with a water injection hole (412), one end of the water cooling jacket (4) is sleeved on the outer wall of the lower end of the platform stage (411), the other end of the water cooling jacket is sleeved on the outer wall of the shell (3), one end of the pressing jacket (5) is sleeved on the outer wall of the higher end of the platform stage (411), the other end of the pressing jacket is provided with a circle of bosses corresponding to the positioning grooves (33), and the bosses are buckled in the positioning grooves (33); a water outlet groove (413) communicated with the water injection hole (412) is formed in the step surface of the stage (411), the corresponding position of the inner wall of the pressing sleeve (5) and the end surface of the sleeving end of the water cooling sleeve (4), a transition groove (414) is arranged at one end, corresponding to the water outlet groove (413), of the water cooling sleeve (4), one end of the transition groove (414) is communicated with the cooling water channel, the other end of the transition groove is communicated with the water outlet groove (413), cooling water flows into the water outlet groove (413) from the water injection hole (412), flows into the cooling water channel through the transition groove (414), sequentially flows into the cavity structure through the notch and the water passing groove (331).
6. A water-cooled grinding head for operation according to claim 5, wherein: be equipped with the step hole in water-cooling cover (4), be equipped with installation cover (53) at this step downthehole, the one end of installation cover (53) stretches into the step hole and cup joints in connecting hole (415), the lateral wall of the other end be equipped with the stair structure of step hole adaptation, this stair structure inlays and establishes in step hole position, installation cover (53) and step hole position correspond the step face of end each other the butt spacing.
7. The water-cooled grinding head for surgery of claim 6, wherein: a groove is formed in the outer side wall of the mounting sleeve (53), a second sealing ring (62) is embedded in the groove, and the outer side wall of the second sealing ring (62) is abutted with the corresponding position of the inner side wall of the connecting hole (415) in a fit manner; a third sealing ring (63) is embedded on the inner side wall of the water cooling sleeve (4), and the inner side wall of the third sealing ring (63) is abutted to the corresponding position of the outer wall of the lower end of the platform stage (411) in a fit mode so as to prevent cooling water from flowing into the motor.
8. A water-cooled grinding head for operation according to claim 5, wherein: the handle (41) is provided with a water injection pipe which is communicated with a water injection hole (412).
9. A water-cooled grinding head for surgery according to claim 2, characterized in that: the bending curvatures of the grinding handle, the outer pipe (2), the sleeve (21) and the connecting pipe (22) are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021940791.3U CN212438753U (en) | 2020-09-08 | 2020-09-08 | Water-cooled grinding head for operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021940791.3U CN212438753U (en) | 2020-09-08 | 2020-09-08 | Water-cooled grinding head for operation |
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| CN212438753U true CN212438753U (en) | 2021-02-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067279A1 (en) * | 2022-09-30 | 2024-04-04 | 邦士医疗科技股份有限公司 | Coolable abrasive drill for minimally invasive spine surgery |
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2020
- 2020-09-08 CN CN202021940791.3U patent/CN212438753U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067279A1 (en) * | 2022-09-30 | 2024-04-04 | 邦士医疗科技股份有限公司 | Coolable abrasive drill for minimally invasive spine surgery |
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