CN111227902A - Reaming device for orthopedics - Google Patents
Reaming device for orthopedics Download PDFInfo
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- CN111227902A CN111227902A CN202010105054.XA CN202010105054A CN111227902A CN 111227902 A CN111227902 A CN 111227902A CN 202010105054 A CN202010105054 A CN 202010105054A CN 111227902 A CN111227902 A CN 111227902A
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- China
- Prior art keywords
- rod
- extending
- hole
- cutter head
- extending rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1659—Surgical rasps, files, planes, or scrapers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
Abstract
The invention discloses an orthopedic reaming device, which drives a connecting slide block to slide in an extending rod by rotating an operating handle, thereby driving the connecting rod and the resisting cross rod to horizontally slide along the length direction of the extending rod respectively, thereby resisting the telescopic rod in the inclined hole, leading the telescopic rod to extend out of the fixed rod along the direction far away from the extending rod, thereby driving the first cutter head and the second cutter head to extend and retract towards the direction far away from the extending rod, enlarging the area enclosed by the first cutter head and the second cutter head, and then can be right first tool bit with the second tool bit is receive and release, makes inside reaming device for orthopedics can get into the bone cavity through littleer hole, has reduced the incision area, and then has reduced the injury of operation to the patient, makes the operation effect better.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a hole expanding device for orthopedics.
Background
With the development of noninvasive and slightly painful medical technology, the orthopedic medical instrument is greatly improved and developed; such as bone drills, stainless steel sleeves of bone drills, bone cement injectors and the like, play a great role in the rehabilitation of patients.
In the bone surgery, often need carry out reaming in marrow cavity or centrum, its reaming method is for utilizing mechanical type reaming device to carry out reaming, cuts the expansion through stretching into the marrow cavity with spiral hole converter, but current reaming device size is fixed, when need stretch into marrow cavity or centrum and carry out reaming to the opposite side, can only cut the side of stretching into, make reaming device can get into, so increased the reaming area, make patient's wound face bigger, and then influence the operation effect.
Disclosure of Invention
The invention aims to provide a reaming device for orthopedics, and aims to solve the technical problems that when the other side needs to be reamed by extending into a marrow cavity or a vertebral body, only the extending side can be cut, so that the reaming device can enter, the reaming area is increased, the wound surface of a patient is larger, and the operation effect is influenced in the prior art.
In order to achieve the purpose, the hole expanding device for the orthopedics department, which is adopted by the invention, comprises an extension rod, an operating handle, a sliding assembly and a hole expanding assembly; the extending rod is provided with a through hole and a sliding groove, the through hole is positioned in the extending rod, the opening of the through hole faces the free end part of the extending rod, the sliding groove is positioned on the periphery of the extending rod, extends into the extending rod and is communicated with the through hole, and the operating handle is rotatably connected with the extending rod and is positioned at one end, far away from the sliding groove, of the extending rod; the sliding assembly is connected with the extending rod in a sliding mode, is connected with the operating handle in a rotating mode and is located inside the extending rod, and the reaming assembly is connected with the extending rod in a sliding mode and is located on the periphery of the extending rod; the reaming assembly comprises a connecting rod, a resisting cross rod, a fixed rod, a telescopic rod, a first tool bit and a second tool bit, the connecting rod is connected with the extending rod in a sliding mode, extends into the through hole through the sliding groove and is matched with the sliding assembly, the sliding assembly drives the connecting rod to slide, the resisting cross rod is fixedly connected with the connecting rod and is positioned at one end, away from the extending rod, of the connecting rod, the fixed rod is fixedly connected with the extending rod and is positioned at the periphery of the sliding groove, the telescopic rod is connected with the fixed rod in a sliding mode, is connected with the resisting cross rod in a sliding mode and is positioned between the fixed rod and the connecting rod, the telescopic rod is provided with an inclined hole, the inclined hole is positioned at the periphery of the telescopic rod and extends into the inner portion of the telescopic rod and is matched with the resisting cross rod, and the first telescopic rod is rotatably connected with the, and the second tool bit is positioned at one end of the telescopic rod far away from the fixed rod, is rotatably connected with the telescopic rod and is positioned at one end of the telescopic rod close to the first tool bit, and is matched with the first tool bit.
The sliding assembly comprises a spiral screw rod and a connecting sliding block, the spiral screw rod is fixedly connected with the operating handle, is rotatably connected with the extending rod and is positioned inside the extending rod; the connecting slide block is connected with the extending rod in a sliding mode, is connected with the spiral lead screw in a rotating mode, and is fixedly connected with the connecting rod, and the connecting slide block is located inside the through hole and close to the sliding groove.
The number of the connecting rods is multiple, the connecting rods are positioned on the same plane and uniformly surround the periphery of the extension rod; the number of the resisting cross rods is multiple and is consistent with that of the connecting rods, and the resisting cross rods are respectively positioned at one end, away from the extending rod, of the connecting rod; the number of the fixed rods is multiple, the number of the fixed rods is the same as that of the connecting rods, and the fixed rods are respectively arranged around the peripheries of the connecting rods in an enclosing manner; the number of the telescopic rods is multiple, is the same as that of the fixed rods, and is positioned in the fixed rods; the number of the first cutter heads is multiple, and the number of the second cutter heads is consistent with that of the first cutter heads and is respectively matched with the first cutter heads.
The reaming assembly further comprises an elastic limiting clamp, the elastic limiting clamp is fixedly connected with the telescopic rod, matched with the resisting cross rod and located on the side wall of the telescopic rod in the inclined hole, and the elastic limiting clamp limits the resisting cross rod.
The reaming assembly further comprises a first auxiliary blade and a second auxiliary blade, wherein the first auxiliary blade is fixedly connected with the first cutter head, is positioned on one side of the first cutter head far away from the extension rod, and is positioned between the telescopic rod and the second cutter head; the second auxiliary blade is fixedly connected with the second cutter head, is positioned on one side, far away from the extending rod, of the second cutter head, and is positioned between the first cutter head and the telescopic rod.
The first cutter head is provided with a first through hole, the through hole is positioned on one side, close to the first auxiliary blade, of the first cutter head, and penetrates through the first cutter head towards the direction of the extending rod; the first auxiliary blade is provided with a second through hole, the second through hole is positioned on one side, far away from the extending rod, of the first auxiliary blade, and penetrates through the first auxiliary blade towards the direction of the first cutter head and is communicated with the first through hole.
The reaming assembly further comprises a storage box, wherein the storage box is fixedly connected with the fixed rod, is positioned at the periphery of the fixed rod and faces the direction of the first through hole.
The reaming device for the orthopedics department further comprises a distraction clamp and a pressing assembly, wherein the distraction clamp is rotatably connected with the extension rod through the pressing assembly, is positioned on the periphery of the extension rod, is positioned between the connecting rod and the operating handle and faces the direction of the connecting rod; the pressing component is fixedly connected with the spreading clamp, is rotatably connected with the extending rod and is positioned on one side of the spreading clamp close to the operating handle.
The pressing assembly comprises a lantern ring and a pressing handle, the lantern ring is rotatably connected with the stretching rod and the expanding clamp and is positioned between the stretching rod and the expanding clamp; the pressing handle is fixedly connected with the spreading clamp, is rotatably connected with the lantern ring and is positioned on one side of the spreading clamp close to the operating handle.
The propping clamp is provided with a plurality of propping bulges, the propping bulges are positioned on one side of the propping clamp far away from the stretching rod, and the propping bulges are uniformly distributed on the surface of the propping clamp.
The reaming device for orthopedics department of the invention enables the screw rod to drive the connecting sliding block to slide in the extending rod by rotating the operating handle, thereby driving the connecting rod and the resisting cross rod to horizontally slide along the length direction of the extending rod respectively, thereby resisting the telescopic rod in the inclined hole, leading the telescopic rod to extend out of the fixed rod along the direction far away from the extending rod, thereby driving the first cutter head and the second cutter head to extend and retract towards the direction far away from the extending rod, enlarging the area enclosed by the first cutter head and the second cutter head, and then can be right first tool bit with the second tool bit is receive and release, makes inside reaming device for orthopedics can get into the bone cavity through littleer hole, has reduced the incision area, and then has reduced the injury of operation to the patient, makes the operation effect better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the connection structure of the connecting rod and the extension rod of the present invention.
Fig. 2 is a schematic view of the connection structure of the telescopic bar and the resisting bar of the present invention.
Fig. 3 is a schematic diagram of the configuration of the reaming assembly of the present invention.
Fig. 4 is an enlarged view of the structure of the first tool tip of the present invention.
FIG. 5 is a schematic view of the connection structure of the inventive reach rod and the spiral wire rod.
Fig. 6 is a schematic view of the attachment structure of the distracting clip and compression assembly of the present invention.
In the figure: 1-extension rod, 2-operating handle, 3-sliding component, 4-reaming component, 5-spreading clamp, 6-pressing component, 11-through hole, 12-sliding groove, 31-screw rod, 32-connecting sliding block, 41-connecting rod, 42-resisting cross rod, 43-fixing rod, 44-telescopic rod, 45-first cutter head, 46-second cutter head, 47-elastic limit card, 48-first auxiliary cutter blade, 49-second auxiliary cutter blade, 50-storage box, 51-abutting projection, 61-lantern ring, 62-pressing handle, 100-reaming device for orthopedics department, 441-inclined hole, 451-first through hole, 481-second through hole.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In a first example of the present embodiment:
referring to fig. 1 to 3, the present invention provides an orthopedic reaming device 100, which includes an inserting rod 1, an operating handle 2, a sliding assembly 3 and a reaming assembly 4; the extending rod 1 is provided with a through hole 11 and a sliding groove 12, the through hole 11 is positioned inside the extending rod 1, the opening of the through hole is towards the free end part of the extending rod 1, the sliding groove 12 is positioned on the periphery of the extending rod 1, extends into the extending rod 1 and is communicated with the through hole 11, and the operating handle 2 is rotatably connected with the extending rod 1 and is positioned at one end of the extending rod 1, which is far away from the sliding groove 12; the sliding assembly 3 is connected with the extending rod 1 in a sliding mode, is connected with the operating handle 2 in a rotating mode and is located inside the extending rod 1, and the reaming assembly 4 is connected with the extending rod 1 in a sliding mode and is located on the periphery of the extending rod 1; the reaming assembly 4 comprises a connecting rod 41, a resisting cross rod 42, a fixing rod 43, an extending rod 1, a first cutter head 45 and a second cutter head 46, wherein the connecting rod 41 is slidably connected with the extending rod 1, extends into the through hole 11 through the sliding groove 12 and is matched with the sliding assembly 3, the sliding assembly 3 drives the connecting rod 41 to slide, the resisting cross rod 42 is fixedly connected with the connecting rod 41 and is positioned at one end of the connecting rod 41 far away from the extending rod 1, the fixing rod 43 is fixedly connected with the extending rod 1 and is positioned at the periphery of the sliding groove 12, the telescopic rod 44 is slidably connected with the fixing rod 43 and is slidably connected with the resisting cross rod 42 and is positioned between the fixing rod 43 and the connecting rod 41, the telescopic rod 44 is provided with an inclined hole 441, and the inclined hole 441 is positioned at the periphery of the telescopic rod 44, and extends into the interior of the telescopic rod 44 and is matched with the resisting cross rod 42, the first cutter head 45 is rotatably connected with the telescopic rod 44 and is positioned at one end of the telescopic rod 44 far away from the fixed rod 43, the second cutter head 46 is rotatably connected with the telescopic rod 44 and is positioned at one end of the telescopic rod 44 close to the first cutter head 45, and the second cutter head 46 is matched with the first cutter head 45.
Further, the sliding assembly 3 comprises a screw rod 31 and a connecting slide block 32, the screw rod 31 is fixedly connected with the operating handle 2, is rotatably connected with the extending rod 1, and is located inside the extending rod 1; the connecting slide block 32 is slidably connected with the extending rod 1, is rotatably connected with the screw rod 31, and is fixedly connected with the connecting rod 41, and the connecting slide block 32 is located inside the through hole 11 and close to the chute 12.
Furthermore, the number of the connecting rods 41 is multiple, and the connecting rods are located on the same plane and uniformly surround the periphery of the extension rod 1; the number of the resisting cross bars 42 is multiple and is the same as that of the connecting bars 41, and the resisting cross bars are respectively positioned at one end of the connecting bars 41 far away from the extending rod 1; the number of the fixing rods 43 is multiple, the number of the fixing rods is the same as that of the connecting rods 41, and the fixing rods are respectively arranged around the periphery of the connecting rods 41; the number of the telescopic rods 44 is a plurality, the number of the telescopic rods is the same as that of the fixing rods 43, and the telescopic rods are positioned inside the fixing rods 43; the number of the first tool bits 45 is multiple, and the number of the second tool bits 46 is the same as that of the first tool bits 45 and is respectively matched with the first tool bits 45.
Further, the reaming assembly 4 further includes an elastic limiting clip 47, the elastic limiting clip 47 is fixedly connected to the telescopic rod 44, and is engaged with the resisting cross rod 42 and located on a side wall of the telescopic rod 44 at the inclined hole 441, and the elastic limiting clip 47 limits the resisting cross rod 42.
In this embodiment, the extending rod 1 is a rectangular body with a hollow interior, the hollow interior of the rectangular body is a rectangular groove, a guiding soft rod is fixed at the front end of the extending rod 1 and used for extending into the bone marrow cavity, the operating handle 2 is rotatably installed at one end, away from the guiding soft rod, of the extending rod 1, the shell of the operating handle 2 is T-shaped, the bottom of the shell is in rotation limit with the end of the extending rod 1 and can axially rotate around the central line of the extending rod 1, the connecting sliding block 32 is a rectangular sliding block and horizontally clamped with the rectangular inner surface of the extending rod 1, the center of the connecting sliding block 32 is provided with a threaded hole matched with the spiral screw rod 31, and the operating handle 2 drives the spiral screw rod 31 to rotate so as to drive the connecting sliding block 32 to slide along the length direction of the extending rod 1; the side surface of the extending rod 1 is provided with four sliding grooves 12, which are arranged around the outer surface of the extending rod 1, are positioned in four mutually perpendicular directions, and are horizontally arranged along the length direction of the extending rod 1, the connecting rods 41 and the connecting slide blocks 32 are integrally formed, the number of the connecting rods 41 is four, the connecting rods are respectively fixed on four side surfaces on the same horizontal plane of the connecting slide blocks 32, the four sliding grooves 12 penetrate through the extending rod 1, one ends of the four connecting rods 41, which are far away from the connecting slide blocks 32, are respectively connected with four resisting cross rods 42, the central axis of the resisting cross rods 42 is perpendicular to the central axis of the connecting rods 41 and is perpendicular to the central axis of the extending rod 1, the fixing rods 43 are shells with hollow inner parts, the four fixing rods 43 are respectively positioned on the peripheries of the four connecting rods 41, and the bottoms of the fixing rods 43 are fixed on the peripheries of the extending rod, the fixing rod 43 is a rectangular body, the fixing rod 43 is hollow inside and is sleeved on the periphery of the sliding chute 12, the shape of the telescopic rod 44 is the same as that of the fixing rod 43 and is in sliding fit with the inner side wall of the fixing rod 43, the telescopic rod 44 is hollow inside, the bottom of the telescopic rod 44 is provided with an opening and faces the extension rod 1, the four telescopic rods 44 are respectively connected inside the four fixing rods 43 in a sliding manner, the two sides of the telescopic rod 44 are provided with the inclined holes 441, the direction of the inclined holes 441 is the same as the extending direction of the extension rod 1, the surface of the telescopic rod 44 is inclined by 45 degrees, the front end and the rear end face of each inclined hole face a right-angle corner of a rectangular side plate of the telescopic rod 44, the two ends of the resisting cross rod 42 respectively extend into the inclined holes 441, the resisting cross rod 42 is driven by the connecting slide block 32 and the connecting rod 41 to horizontally slide along the, the elastic limiting clamps 47 are made of silica gel and bonded to the groove walls of the inclined holes 441 of the telescopic rods 44, the elastic limiting clamps 42 are elastically extruded to limit the transverse resisting rods 42 and the telescopic rods 44 by the plurality of elastic limiting clamps 47, so that the transverse resisting rods 42 are limited without being pushed by external force, the four first tool bits 45 are respectively and rotatably fixed at one ends of the four telescopic rods 44 far away from the fixing rod 43 through connecting rings, the bottom ends of the four second tool bits 46 are respectively and rotatably connected with the first tool bits 45 at one ends of the telescopic rods 44 far away from the fixing rod 43, the top ends of the second tool bits 46 are rotatably connected with the first tool bits 45 through rotating shafts, and the bottoms of every two first tool bits 45 and every two second tool bits 46 are rotatably connected at one end of the telescopic rods 44 far away from the fixing rod 43, the first cutter head 45 and the second cutter head 46 are retracted and extended under the driving of the telescopic rod 44, so that the operating handle 2 is rotated, the screw rod 31 and the connecting slide block 32 are rotated in a threaded manner, the connecting slide block 32 is driven to slide in the extension rod 1, and then four connecting rods 41 and four resisting cross rods 42 are driven to horizontally slide along the long direction of the extension rod 1 respectively, and then the telescopic rod 44 is resisted in the inclined hole 441, so that the telescopic rod 44 is pushed by the resisting cross rod 42 to extend out of the fixing rod 43 along the direction far away from the extension rod 1, and then the first cutter head 45 and the second cutter head 46 which are connected at the ends of the telescopic rod 44 far away from the fixing rod 43 are driven to extend and retract along the direction far away from the extension rod 1, and the area enclosed by the four first cutter heads 45 and the second cutter head 46 is enlarged, and then the first cutter head 45 and the second cutter head 46 can be retracted and extended, so that the reaming device 100 for orthopedics can enter the bone cavity through a smaller hole, the incision area is reduced, the injury of the operation to the patient is reduced, and the operation effect is better.
In a second example of the present embodiment:
referring to fig. 1 to 5, the present invention provides an orthopedic reaming device 100, which includes an inserting rod 1, an operating handle 2, a sliding assembly 3 and a reaming assembly 4; the extending rod 1 is provided with a through hole 11 and a sliding groove 12, the through hole 11 is positioned inside the extending rod 1, the opening of the through hole is towards the free end part of the extending rod 1, the sliding groove 12 is positioned on the periphery of the extending rod 1, extends into the extending rod 1 and is communicated with the through hole 11, and the operating handle 2 is rotatably connected with the extending rod 1 and is positioned at one end of the extending rod 1, which is far away from the sliding groove 12; the sliding assembly 3 is connected with the extending rod 1 in a sliding mode, is connected with the operating handle 2 in a rotating mode and is located inside the extending rod 1, and the reaming assembly 4 is connected with the extending rod 1 in a sliding mode and is located on the periphery of the extending rod 1; the reaming assembly 4 comprises a connecting rod 41, a resisting cross rod 42, a fixing rod 43, a telescopic rod 44, a first cutter head 45 and a second cutter head 46, wherein the connecting rod 41 is slidably connected with the extending rod 1, extends into the through hole 11 through the sliding groove 12 and is matched with the sliding assembly 3, the sliding assembly 3 drives the connecting rod 41 to slide, the resisting cross rod 42 is fixedly connected with the connecting rod 41 and is positioned at one end of the connecting rod 41 far away from the extending rod 1, the fixing rod 43 is fixedly connected with the extending rod 1 and is positioned at the periphery of the sliding groove 12, the telescopic rod 44 is slidably connected with the fixing rod 43 and is slidably connected with the resisting cross rod 42 and is positioned between the fixing rod 43 and the connecting rod 41, the telescopic rod 44 is provided with an inclined hole 441, and the inclined hole 441 is positioned at the periphery of the telescopic rod 44, and extends into the interior of the telescopic rod 44 and is matched with the resisting cross rod 42, the first cutter head 45 is rotatably connected with the telescopic rod 44 and is positioned at one end of the telescopic rod 44 far away from the fixed rod 43, the second cutter head 46 is rotatably connected with the telescopic rod 44 and is positioned at one end of the telescopic rod 44 close to the first cutter head 45, and the second cutter head 46 is matched with the first cutter head 45.
Further, the reaming assembly 4 further comprises a first auxiliary blade 48 and a second auxiliary blade 49, wherein the first auxiliary blade 48 is fixedly connected with the first cutter head 45, is positioned on the side of the first cutter head 45 far away from the extension rod 1, and is positioned between the telescopic rod 44 and the second cutter head 46; the second auxiliary blade 49 is fixedly connected to the second blade 46, and is located on a side of the second blade 46 away from the extension rod 1 and between the first blade 45 and the extension rod 44.
Further, the first blade 45 has a first through hole 451, and the through hole 11 is located on one side of the first blade 45 close to the first auxiliary blade 48 and penetrates through the first blade 45 toward the direction of the extension rod 1; the first auxiliary blade 48 has a second through hole 481, and the second through hole 481 is located on a side of the first auxiliary blade 48 away from the insertion rod 1, and penetrates the first auxiliary blade 48 toward the first blade head 45, and penetrates the first through hole 451.
Further, the reaming assembly 4 further includes a storage box 50, wherein the storage box 50 is fixedly connected to the fixing rod 43 and is located at the periphery of the fixing rod 43 and faces the direction of the first through hole 451.
In this embodiment, the first auxiliary blade 48 is integrally installed at one end of the first blade head 45 facing the telescopic rod 44, the first auxiliary blade 48 has a plurality of blades extending away from the telescopic rod 44 for facilitating cutting, and the second auxiliary blade 49 is the same as the first auxiliary blade 48 in shape and is integrally fixed on the outer surface of the second blade head 46, so that the first blade head 45 and the second blade head 46 are driven by the telescopic rod 44 to open, and cutting can be performed by the first auxiliary blade 48 and the second auxiliary blade 49; the first blade tip 45 has the first through hole 451 therethrough, the first auxiliary blade 48 has the second through hole 481 therethrough, the first through hole 451 and the second through hole 481 are mutually through-passed, and extends into the space between two adjacent fixing bars 43, the storage case 50 is screw-fixed to the area between two adjacent fixing bars 43, and opens in the direction of the first through-hole 451, when the first cutter head 45, the second cutter head 46, the first subsidiary blade 48 and the second subsidiary blade 49 cut bone marrow, a lot of fine bone fragments are generated, the first through hole 451 is introduced into the second through hole 481, and then introduced into the storage box 50 from the second through hole 481 to be collected, so can reduce the bone bits and keep somewhere in the bone intracavity, hinder the going on of operation, and then make the operation effect better.
In a third example of the present embodiment:
referring to fig. 1 to 6, the present invention provides an orthopedic reaming device 100, which includes an inserting rod 1, an operating handle 2, a sliding assembly 3 and a reaming assembly 4; the extending rod 1 is provided with a through hole 11 and a sliding groove 12, the through hole 11 is positioned inside the extending rod 1, the opening of the through hole is towards the free end part of the extending rod 1, the sliding groove 12 is positioned on the periphery of the extending rod 1, extends into the extending rod 1 and is communicated with the through hole 11, and the operating handle 2 is rotatably connected with the extending rod 1 and is positioned at one end of the extending rod 1, which is far away from the sliding groove 12; the sliding assembly 3 is connected with the extending rod 1 in a sliding mode, is connected with the operating handle 2 in a rotating mode and is located inside the extending rod 1, and the reaming assembly 4 is connected with the extending rod 1 in a sliding mode and is located on the periphery of the extending rod 1; the reaming assembly 4 comprises a connecting rod 41, a resisting cross rod 42, a fixing rod 43, a telescopic rod 44, a first cutter head 45 and a second cutter head 46, wherein the connecting rod 41 is slidably connected with the extending rod 1, extends into the through hole 11 through the sliding groove 12 and is matched with the sliding assembly 3, the sliding assembly 3 drives the connecting rod 41 to slide, the resisting cross rod 42 is fixedly connected with the connecting rod 41 and is positioned at one end of the connecting rod 41 far away from the extending rod 1, the fixing rod 43 is fixedly connected with the extending rod 1 and is positioned at the periphery of the sliding groove 12, the telescopic rod 44 is slidably connected with the fixing rod 43 and is slidably connected with the resisting cross rod 42 and is positioned between the fixing rod 43 and the connecting rod 41, the telescopic rod 44 is provided with an inclined hole 441, and the inclined hole 441 is positioned at the periphery of the telescopic rod 44, and extends into the interior of the telescopic rod 44 and is matched with the resisting cross rod 42, the first cutter head 45 is rotatably connected with the telescopic rod 44 and is positioned at one end of the telescopic rod 44 far away from the fixed rod 43, the second cutter head 46 is rotatably connected with the telescopic rod 44 and is positioned at one end of the telescopic rod 44 close to the first cutter head 45, and the second cutter head 46 is matched with the first cutter head 45.
Further, the reaming device 100 for orthopedics further comprises a distraction clip 5 and a pressing assembly 6, wherein the distraction clip 5 is rotatably connected with the insertion rod 1 through the pressing assembly 6, is located at the periphery of the insertion rod 1, is located between the connecting rod 41 and the operating handle 2, and faces the direction of the connecting rod 41; the pressing component 6 is fixedly connected with the expanding clamp 5, is rotatably connected with the extending rod 1, and is positioned at one side of the expanding clamp 5 close to the operating handle 2.
Further, the pressing assembly 6 comprises a collar 61 and a pressing handle 62, the collar 61 is rotatably connected with the inserting rod 1, is rotatably connected with the expanding clamp 5, and is located between the inserting rod 1 and the expanding clamp 5; the pressing handle 62 is fixedly connected with the expanding clamp 5, is rotatably connected with the lantern ring 61, and is located on one side of the expanding clamp 5 close to the operating handle 2.
Furthermore, the expanding clamp 5 is provided with abutting protrusions 51, and the abutting protrusions 51 are located on one side of the expanding clamp 5, which is far away from the extending rod 1, are multiple in number, and are uniformly distributed on the surface of the expanding clamp 5.
In this embodiment, it is equipped with to stretch into the rotatory cover in pole 1 periphery the lantern ring 61, the lantern ring 61 is the ring form, can stretch into the periphery of pole 1 and carry out 360 rotations, the both ends of the lantern ring 61 are rotated respectively and are connected with prop open and press handle 5 and 62, prop open and press 5 with press handle 62 integrated into one piece, and through the pivot with lantern ring 61 rotates, through pressing down press handle 62, make prop open and press 5 to keep away from the direction of stretching into pole 1 and prop open, prop open and press 5 keep away from one side of stretching into pole 1 and have butt arch 51, butt arch 51 is the protection pad with the soft tissue contact, increases the friction between the clamp 5 and the soft tissue that struts, in the bone surgery process, when the target bone position is darker, can be earlier with cutting first knife head 45, first auxiliary blade 48, The second cutter head 46 and the second auxiliary blade 49 extend into the vicinity of the target bone, and the pressing handle 62 is pressed to make the opening clamp 5 open, the abutting protrusion 51 contacts with soft tissue to open the soft tissue to two sides, so that medical staff can observe the bone under the condition of ensuring a small wound, and the operation effect is better.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A reaming device for orthopedics is characterized by comprising an extension rod, an operating handle, a sliding assembly and a reaming assembly;
the extending rod is provided with a through hole and a sliding groove, the through hole is positioned in the extending rod, the opening of the through hole faces the free end part of the extending rod, the sliding groove is positioned on the periphery of the extending rod, extends into the extending rod and is communicated with the through hole, and the operating handle is rotatably connected with the extending rod and is positioned at one end, far away from the sliding groove, of the extending rod; the sliding assembly is connected with the extending rod in a sliding mode, is connected with the operating handle in a rotating mode and is located inside the extending rod, and the reaming assembly is connected with the extending rod in a sliding mode and is located on the periphery of the extending rod;
the reaming assembly comprises a connecting rod, a resisting cross rod, a fixed rod, a telescopic rod, a first tool bit and a second tool bit, the connecting rod is connected with the extending rod in a sliding mode, extends into the through hole through the sliding groove and is matched with the sliding assembly, the sliding assembly drives the connecting rod to slide, the resisting cross rod is fixedly connected with the connecting rod and is positioned at one end, away from the extending rod, of the connecting rod, the fixed rod is fixedly connected with the extending rod and is positioned at the periphery of the sliding groove, the telescopic rod is connected with the fixed rod in a sliding mode, is connected with the resisting cross rod in a sliding mode and is positioned between the fixed rod and the connecting rod, the telescopic rod is provided with an inclined hole, the inclined hole is positioned at the periphery of the telescopic rod and extends into the inner portion of the telescopic rod and is matched with the resisting cross rod, and the first telescopic rod is rotatably connected with the, and the second tool bit is positioned at one end of the telescopic rod far away from the fixed rod, is rotatably connected with the telescopic rod and is positioned at one end of the telescopic rod close to the first tool bit, and is matched with the first tool bit.
2. The reaming device for orthopedics use of claim 1,
the sliding assembly comprises a spiral screw rod and a connecting sliding block, the spiral screw rod is fixedly connected with the operating handle, is rotatably connected with the extending rod and is positioned inside the extending rod; the connecting slide block is connected with the extending rod in a sliding mode, is connected with the spiral lead screw in a rotating mode, and is fixedly connected with the connecting rod, and the connecting slide block is located inside the through hole and close to the sliding groove.
3. The reaming device for orthopedics use of claim 2,
the number of the connecting rods is multiple, the connecting rods are positioned on the same plane and uniformly surround the periphery of the extension rod; the number of the resisting cross rods is multiple and is consistent with that of the connecting rods, and the resisting cross rods are respectively positioned at one end, away from the extending rod, of the connecting rod; the number of the fixed rods is multiple, the number of the fixed rods is the same as that of the connecting rods, and the fixed rods are respectively arranged around the peripheries of the connecting rods in an enclosing manner; the number of the telescopic rods is multiple, is the same as that of the fixed rods, and is positioned in the fixed rods; the number of the first cutter heads is multiple, and the number of the second cutter heads is consistent with that of the first cutter heads and is respectively matched with the first cutter heads.
4. The reaming device for orthopedics use of claim 3,
the reaming assembly further comprises an elastic limiting clamp, the elastic limiting clamp is fixedly connected with the telescopic rod, matched with the resisting cross rod and located on the side wall of the inclined hole of the telescopic rod, and the elastic limiting clamp limits the resisting cross rod.
5. The reaming device for orthopedics use of claim 1,
the reaming assembly further comprises a first auxiliary blade and a second auxiliary blade, the first auxiliary blade is fixedly connected with the first cutter head, is positioned on one side of the first cutter head far away from the extending rod, and is positioned between the telescopic rod and the second cutter head; the second auxiliary blade is fixedly connected with the second cutter head, is positioned on one side, far away from the extending rod, of the second cutter head, and is positioned between the first cutter head and the telescopic rod.
6. The reaming device for orthopedics use of claim 5,
the first cutter head is provided with a first through hole, the through hole is positioned on one side, close to the first auxiliary blade, of the first cutter head, and penetrates through the first cutter head towards the direction of the extending rod; the first auxiliary blade is provided with a second through hole, the second through hole is positioned on one side, far away from the extending rod, of the first auxiliary blade, and penetrates through the first auxiliary blade towards the direction of the first cutter head and is communicated with the first through hole.
7. The reaming device for orthopedics use of claim 6,
the reaming assembly further comprises a storage box, wherein the storage box is fixedly connected with the fixed rod, is positioned at the periphery of the fixed rod and faces the direction of the first through hole.
8. The reaming device for orthopedics use of claim 1,
the reaming device for orthopedics further comprises a distraction clamp and a pressing assembly, wherein the distraction clamp is rotatably connected with the extension rod through the pressing assembly, is positioned on the periphery of the extension rod, is positioned between the connecting rod and the operating handle and faces the direction of the connecting rod; the pressing component is fixedly connected with the spreading clamp, is rotatably connected with the extending rod and is positioned on one side of the spreading clamp close to the operating handle.
9. The reaming device for orthopedics use of claim 8,
the pressing assembly comprises a lantern ring and a pressing handle, the lantern ring is rotatably connected with the extension rod and the distraction clamp and is positioned between the extension rod and the distraction clamp; the pressing handle is fixedly connected with the spreading clamp, is rotatably connected with the lantern ring and is positioned on one side of the spreading clamp close to the operating handle.
10. The reaming device for orthopedics use of claim 9,
the propping clamp is provided with a plurality of propping bulges which are positioned on one side of the propping clamp far away from the stretching rod and are evenly distributed on the surface of the propping clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010105054.XA CN111227902A (en) | 2020-02-20 | 2020-02-20 | Reaming device for orthopedics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010105054.XA CN111227902A (en) | 2020-02-20 | 2020-02-20 | Reaming device for orthopedics |
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| CN111227902A true CN111227902A (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010105054.XA Pending CN111227902A (en) | 2020-02-20 | 2020-02-20 | Reaming device for orthopedics |
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|---|---|---|---|---|
| US5573537A (en) * | 1995-02-10 | 1996-11-12 | Rogozinski; Chaim | Instrument for probing and reaming a pedicle |
| WO2002049517A1 (en) * | 2000-12-21 | 2002-06-27 | Precimed S.A. | Surgical reamer |
| EP1811906A2 (en) * | 2004-10-06 | 2007-08-01 | BioDynamics LLC | Adjustable angle pawl handle for surgical instruments |
| CN1927128A (en) * | 2005-09-06 | 2007-03-14 | 左适佑 | Hole enlarging device for orthopedics department |
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Application publication date: 20200605 |
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