CN218684578U - Orthopedics drill bit or ke shi needle locking card locator - Google Patents
Orthopedics drill bit or ke shi needle locking card locator Download PDFInfo
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- CN218684578U CN218684578U CN202222415338.6U CN202222415338U CN218684578U CN 218684578 U CN218684578 U CN 218684578U CN 202222415338 U CN202222415338 U CN 202222415338U CN 218684578 U CN218684578 U CN 218684578U
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Abstract
The utility model discloses an orthopedic drill bit or Kirschner wire locking locator, which is axially locked on the outer wall of a drill bit rod or a Kirschner wire and comprises a locking male head and a locking female head, wherein the middle part of the locking male head is provided with a through long middle hole, the drill bit rod or the Kirschner wire is in clearance sliding fit in the middle hole, and the locking female head is sleeved on the drill bit rod or the Kirschner wire and is positioned at one side of the outer end of the locking male head; the outer end of the locking male head facing the locking female head is provided with elastic conical plate sheets, the circumferences of the elastic conical plate sheets are uniformly distributed outside the middle hole, and the inner sides of the elastic conical plate sheets are provided with external thread sections; one side of the locking and clamping female head, which faces the elastic centrum sheet bar, is provided with an inner taper hole, the inner side of the inner taper hole is provided with an inner thread section, the inner thread section is in threaded connection with an outer thread section, the elastic centrum sheet bar is pressed by the inner taper hole, and the elastic centrum sheet bar is pressed on the outer wall of the drill bit rod or the Kirschner wire. The utility model discloses can lock and then carry out spacing or the effect of interim fixed steel sheet to drilling depth on drill bit drilling rod or ke shi needle.
Description
Technical Field
The utility model relates to an orthopedics medical instrument technical field especially relates to an orthopedics drill bit or ke shi needle jam locator.
Background
When an orthopedic operation is performed, an orthopedic drill is often required to drill holes, and the fracture part and the medical steel plate are fixed by using screws after the holes are drilled. However, when current medical orthopedics drill bit used alone, to the unable accurate control of drilling depth, only rely on and carry out range estimation and operator's sensation to control, can not guarantee the accuracy of drilling depth in the operation, in addition, the problem that appears very easily is: when the operator controls the depth of the drill bit by hand feeling, the drill bit easily passes through the opposite cortex of the fractured bone to hurt blood vessels and nerves, so that serious adverse effects are caused to the patient, and the operation fails. The other important purpose of the orthopedic locking and clamping positioner of the utility model is: in the fracture surgery, the steel plate needs to be temporarily fixed by selecting a proper position for placing the steel plate. When the fixing is carried out, the kirschner wires with different thicknesses are selected according to different fracture parts, the locking and clamping positioner is locked on the kirschner wires according to a proper depth, the steel plate is temporarily fixed, and then the screw fixation is carried out. The operation is convenient, rapid and accurate.
Therefore, it is necessary to design and develop an orthopedic drill bit or kirschner wire locking locator aiming at the defects and improving the quality of the orthopedic operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an orthopedics drill bit or ke shi needle locking card locator can lock and then carry on spacingly to drilling depth on drill bit drilling rod or ke shi needle, has guaranteed drilling depth's accurate or the interim fixed steel sheet suitable position when the fracture operation.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to an orthopedic drill bit or Kirschner wire locking locator, which is axially locked on the outer wall of a drill bit rod or a Kirschner wire and comprises a locking male head and a locking female head, wherein the middle part of the locking male head is provided with a through-long middle hole, the drill bit rod is in clearance sliding fit in the middle hole, and the locking female head is sleeved on the drill bit rod or the Kirschner wire and is positioned at one side of the outer end of the locking male head; elastic cone-shaped plate sheets are arranged at the outer end of the locking male head, which faces the locking female head, the circumferences of the elastic cone-shaped plate sheets are uniformly distributed outside the middle hole, and the inner sides of the elastic cone-shaped plate sheets are provided with external thread sections; the locking and clamping female head is provided with an inner conical hole towards one side of the elastic conical plate, the inner side of the inner conical hole is provided with an inner thread section, the inner thread section is in threaded connection with the outer thread section, the inner conical hole is pressed against the elastic conical plate, and the elastic conical plate is pressed against the outer wall of the drill rod or the Kirschner wire.
Furthermore, the number of the elastic cone plate pieces is four, a slit is formed between every two adjacent elastic cone plate pieces, and the root parts of the elastic cone plate pieces are integrally connected to the locking male head main body.
Furthermore, the inner hole surface of the elastic cone plate sheet, which is contacted with the outer wall of the drill bit rod or the Kirschner wire, is a cylindrical surface.
Furthermore, the locking and clamping male head is provided with a sealing platform close to one end of the root of the elastic vertebral plate, the locking and clamping female head is provided with a sealing hole section towards one side of the sealing platform from the inner taper hole, and the sealing hole section is sleeved on the sealing platform.
Further, the position of the locking male head facing the drill bit rod drill bit or the Kirschner wire tip is set to be a conical bottom surface.
Furthermore, the locking male head and the locking female head are both made of medical stainless steel materials.
Further, knurling the outer cylindrical surfaces of the locking male head and the locking female head.
Further, the diameter of the mesopores is designed to be 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5 or 5 mm.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model relates to an orthopedics drill bit or ke shi needle locking locator, through wear cover locking card male head and locking card female head on drill bit pole or ke shi needle, can be when locking card male head and locking card female head threaded connection are together, interior taper hole roof pressure elasticity centrum slab, elasticity centrum slab compresses tightly on drill bit pole or ke shi needle outer wall, and then locking card male head and locking card female head lock die on drill bit pole or ke shi needle outer wall, the height of locking card male head bottom to drill bit or ke shi needle point is the drilling depth who sets for promptly. The utility model discloses orthopedics drill bit or ke shi needle locking card locator can lock and then carry on spacingly to drilling depth on the drill bit drilling rod, has guaranteed drilling depth's accuracy, perhaps locks the steel sheet of fixing temporarily on the ke shi needle in suitable position.
In addition, the four elastic vertebral body plates independently extending out of the cantilever can be synchronously and elastically pressed inwards when being pressed by the inner taper hole, and can automatically reset when withdrawing; the bottom surface of the elastic centrum sheet is arranged to be a cylindrical surface attached to a drill bit rod or a Kirschner wire, so that the contact area can be increased, and the frictional resistance during holding is increased. Through the setting of sealed platform and sealed hole section, can seal elasticity centrum slab, interior taper hole and threaded connection department when lock card public head and lock card female head threaded connection, avoid drilling to splash bone sediment, piece enter into the operation region, form the dystopy bone and influence the limbs function. Meanwhile, the matching of the sealing platform and the sealing hole section also has a guiding effect on the locking and clamping female head, and a plurality of elastic vertebral body plate pieces are ensured to be uniformly and inwards compressed. Through the setting of awl bottom surface, can reduce the damage to soft tissue around the drilling and be convenient for extrude the steel sheet and fix temporarily.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a schematic view of the three-dimensional structure of the drill locking positioner for orthopedics department;
FIG. 2 is a schematic view of the front sectional structure of the drill locking positioner for orthopedics department;
fig. 3 is a schematic view of the three-dimensional structure of the locking male head of the present invention.
Description of reference numerals: 1. locking the male head; 101. a central aperture; 102. an external threaded section; 103. a sealing table; 104. a conical bottom surface; 105. elastic vertebral plate; 2. locking and clamping the female head; 201. an inner taper hole; 202. an internal thread section; 203. sealing the hole section; 3. a drill rod.
Detailed Description
The core of the utility model is to provide an orthopedics drill bit or ke shi needle locking card locator can lock and then carry on spacingly to drilling depth on drill bit drilling rod or ke shi needle, has guaranteed drilling depth's accurate and interim fixed steel sheet effect.
In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to the attached drawings, fig. 1 is a schematic view of a three-dimensional structure of an orthopedic drill bit or kirschner wire locking and clamping positioner of the present invention; FIG. 2 is a schematic view of the cross-sectional structure of the locking and positioning device for the drill bit or the Kirschner wire of the orthopedics department; fig. 3 is a schematic view of the three-dimensional structure of the locking male head of the present invention.
In one embodiment, as shown in fig. 1-3, an orthopedic drill bit or k-wire locking locator, axially locked on the outer wall of a drill bit rod or k-wire 3, comprises a locking male head 1 and a locking female head 2 which are connected by screw threads. The middle part of the locking male head 1 is provided with a through-long middle hole 101, a drill rod or a Kirschner wire 3 is in clearance sliding fit in the middle hole 101, and the locking female head 2 is also sleeved on the drill rod or the Kirschner wire 3 in a penetrating way and is positioned on one side of the outer end of the locking male head 1. The outer end of the locking male head 1 facing the locking female head 2 is provided with a plurality of elastic cone plate sheets 105, the plurality of elastic cone plate sheets 105 are circumferentially and uniformly distributed outside the middle hole 101, and the inner side of the elastic cone plate sheets 105 is provided with an external thread section 102. The locking and clamping female head 2 is provided with an inner conical hole 201 towards one side of the elastic conical plate sheet 105, an inner thread section 202 is arranged on the inner side of the inner conical hole 201, the inner thread section 202 is in threaded connection with the outer thread section 102, the elastic conical plate sheet 105 is pressed by the inner conical hole 201, and the elastic conical plate sheet 105 is pressed on the outer wall of the drill rod or the Kirschner wire 3.
Through threading lock bayonet male head 1 and lock female head 2 on drill bit pole or ke shi needle 3, can be when lock bayonet male head 1 and lock female head 2 threaded connection together, interior taper hole 201 roof pressure elasticity centrum slab 105, elasticity centrum slab 105 compresses tightly on drill bit pole or 3 outer walls of ke shi needle, and then lock bayonet male head 1 and lock female head 2 lock on drill bit pole or 3 outer walls of ke shi needle, the height of lock bayonet male head 1 bottom to drill bit or ke shi needle point is the drilling depth who sets for promptly. The utility model discloses orthopedics drill bit or ke shi needle locking card locator can lock and then carry on spacingly to drilling depth on drill bit drilling rod or ke shi needle, has guaranteed drilling depth's accurate and interim fixed steel sheet
In one embodiment, as shown in fig. 2 and 3, the number of the elastic tapered plates 105 is four, an axial slit is provided between adjacent elastic tapered plates 105, and the root of each elastic tapered plate 105 is integrally connected to the body of the locking male 1.
Specifically, as shown in fig. 2 and 3, the inner hole surface of the elastic cone plate 105 contacting with the outer wall of the drill rod or the k-wire 3 is a cylindrical surface attached to the drill rod or the k-wire 3.
The elastic vertebral body plates 105 independently extending out of the cantilever can be synchronously and elastically pressed inwards when being pressed by the inner taper hole 201, and can automatically reset when withdrawing; the bottom surface of the elastic cone plate 105 is arranged to be a cylindrical surface attached to the drill rod or the Kirschner wire 3, so that the contact area can be increased, and the frictional resistance during holding can be increased.
In one embodiment, as shown in fig. 2 and 3, a sealing platform 103 is disposed at one end of the locking male head 1 close to the root of the elastic cone plate 105, a sealing hole section 203 is disposed at one side of the locking female head 2 facing the sealing platform 103 in the inner tapered hole 201, and when the locking male head 1 and the locking female head 2 are connected by screw thread, the sealing hole section 203 is sleeved on the sealing platform 103.
Through the setting of sealed platform 103 and sealed hole section 203, can be when locking the public head 1 of card and the female first 2 threaded connection of lock card, seal elasticity centrum slab 105, interior taper hole 201 and threaded connection department, avoid drilling to splash the bone sediment, the piece enters into the operation region, simultaneously, the two cooperation of sealed platform 103 and sealed hole section 203 still has the guide effect to locking female head 2, ensures that a plurality of elasticity centrum slab 105 evenly inwards compresses tightly.
In one embodiment, as shown in fig. 1-3, the location of the locking bayonet male 1 toward the tip of the drill stem or k-wire 3 is provided as a tapered bottom surface 104.
The arrangement of the cone bottom surface 104 can reduce the damage to soft tissues around the drilled hole and is convenient for protecting blood vessels and nerve tissues around the fracture.
In a specific embodiment, the locking male head 1 and the locking female head 2 are both made of medical stainless steel. The sanitation is ensured to meet the relevant requirements.
Specifically, the outer cylindrical surfaces of the male lock-catch head 1 and the female lock-catch head 2 are knurled. Through the annular knurl setting, can be when locking, the finger antiskid locking of being convenient for.
Specifically, the diameter of the mesopore 101 is designed to be 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, or 5 millimeters in size. The tolerance range of the central bore 101 is +0.1 to +0.3 mm. The common specifications of the orthopedic drill bit or the Kirschner wire are covered in a full range, and the use requirements of various specifications are met.
The utility model discloses when orthopedics drill bit or ke shi needle lock card locator used, wear to overlap drill bit pole or ke shi needle 3 with lock card public head 1 and lock card female head 2, notice lock card public head 1 by on the direction of drill bit or ke shi needle point. And (3) primary locking, wherein the internal thread section 202 is in threaded connection with the external thread section 102, the internal taper hole 201 presses the elastic cone plate 105, the elastic cone plate 105 is pressed on the outer wall of the drill rod or the Kirschner wire 3 with small force, and the locking male head 1 and the locking female head 2 can be moved relative to the drill rod or the Kirschner wire 3 at the moment. And determining the drilling depth, determining the distance from the drill bit or the Kirschner wire tip to the bottom conical bottom surface 104 of the locking male head 1 by using a caliper or a ruler, and pushing the locking male head 1 and the locking female head 2 when the distance is improper until the requirements are met. And finally, locking, wherein one hand holds the drill rod or the Kirschner wire 3 and the outer wall knurling of the locking male head 1, and the other hand rotates the knurling position of the outer wall of the locking female head 2 to lock the position. The hole is drilled until the bottom surface 104 of the cone contacts the bone surface, and the drilling depth meets the set requirement.
The utility model discloses orthopedics drill bit or ke shi needle locking locator, through wear cover locking public head 1 and locking female head 2 on drill bit pole or ke shi needle 3, can be when locking public head 1 of card and locking female head 2 threaded connection together, interior taper hole 201 roof pressure elasticity centrum slab 105, elasticity centrum slab 105 compresses tightly on drill bit pole or ke shi needle 3 outer wall, and then locking public head 1 of card and locking female head 2 locking die on drill bit pole or ke shi needle 3 outer wall, the height of locking public head 1 bottom of card is the drilling depth of settlement and can fix the steel sheet temporarily just for the drilling depth of settlement the utility model discloses orthopedics drill bit lively ke shi needle locking locator can lock on the drill bit drilling rod and then carry on spacingly to drilling depth, has guaranteed the accuracy of drilling depth. In addition, the four elastic vertebral body plates 105 independently extending out of the cantilever can be synchronously and elastically compressed inwards when being pressed by the inner conical hole 201, and can automatically reset when being withdrawn; the bottom surface of the elastic cone plate 105 is set to be a cylindrical surface attached to the drill rod or the Kirschner wire 3, so that the contact area can be increased, and the frictional resistance during holding is increased. Through the setting of sealed platform 103 and sealed hole section 203, can seal elasticity centrum slab 105, interior taper hole 201 and threaded connection department when locking the public head 1 of card and locking the female head 2 threaded connection of card, avoid drilling the bone sediment that splashes, piece to enter into the operation region and cause bad consequence. Meanwhile, the matching of the sealing platform 103 and the sealing hole section 203 has a guiding function on the locking nut head 2, and the elastic cone plate sheets 105 are ensured to be uniformly and inwards compressed. The arrangement of the cone bottom surface 104 can reduce the damage to soft tissues around the drilled hole and is convenient for protecting blood vessels and nerves around the fracture.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (8)
1. The locking locator for the orthopedic drill bit or the Kirschner wire is axially locked on the outer wall of a drill bit rod (3) or the outer wall of the Kirschner wire and is characterized by comprising a locking male head (1) and a locking female head (2), wherein a through long middle hole (101) is formed in the middle of the locking male head (1), the drill bit rod (3) or the Kirschner wire is in clearance sliding fit in the middle hole (101), and the locking female head (2) is sleeved on the drill bit rod (3) or the Kirschner wire in a penetrating manner and is positioned on one side of the outer end of the locking male head (1); elastic cone plate sheets (105) are arranged at the outer end, facing the locking and clamping female head (2), of the locking and clamping male head (1), the elastic cone plate sheets (105) are uniformly distributed on the outer side of the middle hole (101) in the circumferential direction, and the inner side of each elastic cone plate sheet (105) is provided with an external thread section (102); the locking and clamping female head (2) is provided with an inner conical hole (201) towards one side of the elastic cone plate (105), an inner thread section (202) is arranged on the inner side of the inner conical hole (201), the inner thread section (202) is in threaded connection with the outer thread section (102), the inner conical hole (201) is pressed against the elastic cone plate (105), and the elastic cone plate (105) is pressed onto the outer wall of the drill rod (3) or the kirschner wire.
2. The orthopedic drill bit or k-wire latch locator of claim 1, wherein: the number of the elastic cone plate pieces (105) is four, a slit is formed between every two adjacent elastic cone plate pieces (105), and the root parts of the elastic cone plate pieces (105) are integrally connected to the lock-clamping male head (1) main body.
3. The orthopedic drill bit or k-wire latch locator of claim 1, wherein: the inner hole surface of the elastic cone plate (105) contacted with the drill bit rod (3) or the outer wall of the kirschner wire is a cylindrical surface.
4. The orthopedic drill bit or k-wire latch locator of claim 2, wherein: the locking and clamping male head (1) is provided with a sealing platform (103) close to one end of the root of the elastic cone plate (105), the locking and clamping female head (2) is arranged on one side, facing the sealing platform (103), of the inner taper hole (201) and provided with a sealing hole section (203), and the sealing hole section (203) is sleeved on the sealing platform (103).
5. The orthopedic drill bit or k-wire latch locator of claim 1, wherein: the position of the locking male head (1) facing the drill rod (3) or the tip of the Kirschner wire is set to be a conical bottom surface (104).
6. The orthopedic drill bit or k-wire locking and clamping positioner as claimed in any one of claims 1-5, wherein: the lock and clamp male head (1) and the lock and clamp female head (2) are both made of medical stainless steel materials.
7. The orthopedic drill bit or k-wire latch locator of claim 6, wherein: and knurling the outer cylindrical surfaces of the locking male head (1) and the locking female head (2).
8. The orthopedic drill bit or k-wire latch locator of claim 1, wherein: the diameter of the mesopore (101) is designed to be 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5 or 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222415338.6U CN218684578U (en) | 2022-09-13 | 2022-09-13 | Orthopedics drill bit or ke shi needle locking card locator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222415338.6U CN218684578U (en) | 2022-09-13 | 2022-09-13 | Orthopedics drill bit or ke shi needle locking card locator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218684578U true CN218684578U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222415338.6U Active CN218684578U (en) | 2022-09-13 | 2022-09-13 | Orthopedics drill bit or ke shi needle locking card locator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218684578U (en) |
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2022
- 2022-09-13 CN CN202222415338.6U patent/CN218684578U/en active Active
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