CN112426221B - Needle guiding device and needle guiding body thereof - Google Patents
Needle guiding device and needle guiding body thereof Download PDFInfo
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- CN112426221B CN112426221B CN202011336734.9A CN202011336734A CN112426221B CN 112426221 B CN112426221 B CN 112426221B CN 202011336734 A CN202011336734 A CN 202011336734A CN 112426221 B CN112426221 B CN 112426221B
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8897—Guide wires or guide pins
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
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Abstract
The invention discloses a needle guiding body of a needle guiding device, which comprises a needle guiding main body with a longitudinal length, wherein a needle guiding channel is arranged in the needle guiding main body and used for embedding a Kirschner wire, and the needle guiding channel is eccentrically arranged in the needle guiding main body; when the device is used, the guide needle main body is fixedly arranged in parallel with the surface of the hole ring, and the guide needle channel which is arranged in a deviation manner is close to the surface of the hole ring. The internal guide pin passageway that is equipped with eccentric setting of guide pin, at first, the guide pin passageway can realize the direction to the ke shi needle, and secondly, eccentric setting's guide pin passageway, when using, this guide pin passageway is close to the hole ring, can make the ke shi needle of arranging in the guide pin passageway more be close to this hole ring, takes away this guide pin body messenger when the threading needle finishes, and this ke shi needle can be more close hole ring position, is convenient for be fixed in the hole through lock needle ware with the ke shi needle on the ring. The guide needle channel which is eccentrically arranged can guide the trend of the kirschner wire, and is convenient for the subsequent positioning and installation of the kirschner wire and the hole ring.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a needle guiding device.
Background
When a patient has fracture, orthopedic surgery is generally needed for treatment; in the operation, a kirschner wire is often used for fixing a fracture part, and for this purpose, the kirschner wire needs to be subjected to a needle threading operation.
Currently, in the operation, a needle threading operation needs to be performed by a more experienced doctor, in order to enable the kirschner wire to be passed into a proper position as accurately as possible and to pass out from the proper position, so as to avoid damaging other tissues such as nerve tissues and bringing other influences to a patient; however, this procedure still involves a risk, and if there is a slight error, it will cause unnecessary pain to the patient.
In addition, some guiding devices are also available in the prior art, but some guiding devices, such as patent document with publication number "CN104382643A", have a large volume, occupy a large space, and are not beneficial to surgical operation; the guiding devices are often fixed, and when the operation is performed, the operation space of medical personnel can be blocked, so that the progress of the operation can be caused; moreover, the through hole of locating lever among them is used for fixing kirschner wire, and under this mode, for some kirschner wires that the diameter is less, when carrying out the operation of threading the needle, probably lead to the kirschner wire to appear buckling.
In addition, in some orthopedic operations, an external fixator, i.e. a hole ring, needs to be positioned around the fracture of a patient in advance, and after needle threading is performed, a needle locking device needs to be used for fixing the kirschner wire on the hole ring. The current common operation mode is as follows: the doctor wears the needle by depending on the experience of the doctor, and then fixes the needle after the needle is worn. Depending on experience, the position of the threading needle may not reach the expected position between the threading needle and the hole ring, and further the fixation of the kirschner wire and the hole ring at the later stage is influenced.
Therefore, how to provide a needle guiding device capable of avoiding the above disadvantages becomes a technical problem which needs to be solved by those skilled in the art.
Disclosure of Invention
Therefore, in order to solve the above drawbacks, the present invention provides a needle guiding body of a needle guiding device, wherein an eccentrically disposed through needle guiding channel is disposed in the needle guiding body, and the eccentric direction is close to the planar position of the hole ring, so that the kirschner wire can maximally approach the hole ring after being guided through the needle guiding channel, and the kirschner wire can be fixed to the hole ring after the needle guiding body is removed. The invention also provides a needle guiding device comprising the needle guiding body, the needle guiding device is simple in structure and comprises two fixing blocks which are oppositely arranged, the needle guiding bodies which can be arranged in the fixing blocks in a sliding mode and are used for guiding the needle are respectively arranged in the two fixing blocks, the kirschner wire is arranged in the needle guiding body, the positioning of the needle guiding can be realized, the kirschner wire can be led in from one fixing block and led out from the other fixing block according to the specified direction, the directionality of the needle threading is ensured, the needle guiding bodies slide in the positioning blocks, the two oppositely arranged needle guiding bodies can maximally approach the fracture part of a patient when being guided, the kirschner wire can be ensured to directly enter the fracture part after being led out from the first needle guiding body, the first needle guiding body maximally approaches the fracture part, the protection and support effects on the kirschner wire can be realized, and the bending condition of the kirschner wire when entering the fracture part is avoided.
In order to achieve the above purpose, the technical scheme adopted by the invention comprises the following steps:
a needle guiding body of a needle guiding device comprises a needle guiding main body with a longitudinal length, wherein a needle guiding channel which runs through the needle guiding main body along the longitudinal length direction is arranged in the needle guiding main body, the needle guiding channel is used for embedding a kirschner wire which is matched and can slide in the needle guiding channel, and the needle guiding channel is eccentrically arranged in the needle guiding main body;
when the guide needle device is used, the guide needle main body is parallel to the surface of the hole ring and is fixedly arranged, and the guide needle channel is arranged in a deviation manner and is close to the surface of the hole ring.
Preferably, the needle body is a prism.
Preferably, the needle guide body is an octagonal prism, one side surface of the octagonal prism pointed along the eccentric direction of the needle guide channel is a tangent side surface, a part of the curved surface of the needle guide channel close to the tangent side surface is a tangent curved surface, and the tangent side surface and the tangent curved surface are arranged in a tangent mode.
Preferably, the length of the needle body is 60mm or more.
Preferably, when the kirschner wire is embedded in the guide needle channel, the guide needle channel is in interference fit sliding connection with the kirschner wire.
The invention provides a needle body, which has the following technical effects:
the internal guide pin passageway that is equipped with eccentric setting of guide pin, at first, the guide pin passageway can realize the direction to the ke shi needle, and secondly, eccentric setting's guide pin passageway, when using, this guide pin passageway is close to the hole ring, can make the ke shi needle of arranging in the guide pin passageway more be close to this hole ring, takes away this guide pin body messenger when the threading needle finishes, and this ke shi needle can be more close hole ring position, is convenient for be fixed in the hole through lock needle ware with the ke shi needle on the ring. The guide needle channel which is eccentrically arranged can guide the trend of the Kirschner wire, and is convenient for subsequent positioning and installation of the Kirschner wire and the hole ring.
Preferably, the guide pin main body is a prism body, so that the guide pin main body is convenient to mount and fix.
Preferably, the guide pin body is an octagonal prism, one side surface of the octagonal prism pointed along the eccentric direction of the guide pin channel is a tangent side surface, a part of the curved surface of the guide pin channel close to the tangent side surface is a curved surface, and the tangent side surface and the tangent curved surface are arranged in a tangent mode, so that the limit eccentric position can be reached, and the Kirschner wire can be closer to the position of the hole ring.
Preferably, the length of the guide needle body is more than or equal to 60mm, and the threading positioning of most of the current kirschner wires on the market can be met.
The invention also provides a needle guiding device, which comprises a first fixed block and a second fixed block which have longitudinal length and end surfaces which are oppositely arranged, wherein the first fixed block and the second fixed block are respectively provided with an embedding space which extends along the length direction of the corresponding fixed block and penetrates through the corresponding fixed block, the first embedding space and the second embedding space are respectively provided with a first needle guiding body which is embedded in the first embedding space and has a shape matched with the first embedding space and can slide in the first embedding space, the second embedding space is embedded with a second needle guiding body which has a shape matched with the second embedding space and can slide in the second embedding space, the first needle body and the second needle body are the needle body as claimed in any one of claims 1 to 5, the needle guiding channel in the first needle body is a first needle guiding channel, the needle guiding channel in the second needle body is a second needle guiding channel, the needle guiding device further comprises a first vertical rod, a second vertical rod and a cross rod, the upper surface of the first fixing block is connected with the first vertical rod, the upper surface of the second fixing block is connected with the second vertical rod, one ends of the first vertical rod and the second vertical rod, which are far away from the corresponding fixing blocks, are respectively connected with the cross rod, and the lower surfaces of the first fixing block and the second fixing block are respectively provided with a fixing column for being inserted into a hole ring with a plurality of holes at a fracture part;
when the fixing column is used, the fixing column is inserted into the hole ring, the first guide needle body and the second guide needle body are respectively moved in the first fixing block and the second fixing block to be close to the fracture part, the first guide needle channel is aligned with the second guide needle channel, and the needle tip of the kirschner needle with the diameter matched with the inner diameter of the first guide needle channel and the second guide needle channel is led out from the first guide needle channel, passes through the fracture part and is led into the second guide needle channel.
Preferably, the first vertical rod is connected with the cross rod in a sliding manner, the first vertical rod can slide along the length direction of the cross rod relative to the fixed cross rod, the second vertical rod is connected with the cross rod in a sliding manner, and the second vertical rod can slide along the length direction of the cross rod relative to the fixed cross rod.
As preferred, first pole setting with first fixed block is the rotation of each other and connects, first pole setting is for fixed first fixed block can be followed the circumferencial direction of first fixed block rotates, the second pole setting with the second fixed block is the rotation of each other and connects, the second pole setting is for fixed the second fixed block can be followed the circumferencial direction of second fixed block rotates, first pole setting with the horizontal pole is the rotation of each other and connects, first pole setting is for fixed the horizontal pole can be followed the circumferencial direction of horizontal pole rotates, the second pole setting with the horizontal pole is the rotation of each other and connects, the second pole setting is for fixed the horizontal pole can be followed the circumferencial direction of horizontal pole rotates.
Preferably, the upper surface of the first fixed block is convexly provided with two opposite first connecting plates, the two first connecting plates are respectively provided with a corresponding first through hole, one end of the first upright rod connected with the first fixed block is provided with a first shaft hole matched with the first through hole, and the first upright rod and the first fixed block are rotatably connected with each other by the first shaft penetrating through the two first through holes and the first shaft hole;
the protruding relative two second connecting plates of establishing of second fixed block upper surface, two corresponding second through-hole has all been seted up on the second connecting plate, the second pole setting is connected the one end of second fixed block is seted up the matching the second shaft hole of second through-hole, still includes the second shaft, the second shaft passes two the second through-hole, second shaft hole can make the second pole setting with the second fixed block is the rotation connection each other.
Preferably, the connecting structure further comprises a first transition connecting piece, the first transition connecting piece comprises a first plate body, a clamping groove is formed in the upper surface of the first plate body and used for clamping the cross rod, two opposite third connecting plates are convexly arranged on the lower surface of the first plate body, corresponding third through holes are formed in the two third connecting plates, a third shaft hole matched with the third through holes is formed in one end, close to the cross rod, of the first vertical rod, and the third shaft penetrates through the two third through holes and the third shaft hole and can enable the first transition connecting piece and the first vertical rod to be connected in a mutually rotating mode;
still include second transition connection spare, second transition connection spare includes the second plate body, the upper surface of second plate body is formed with the draw-in groove and is used for the joint the horizontal pole, the protruding two relative fourth connecting plates that are equipped with of lower surface of second plate body, two corresponding fourth through-hole has all been seted up on the fourth connecting plate, the second pole setting is close to the one end of horizontal pole is seted up and is matchd the fourth shaft hole of fourth through-hole still includes the fourth shaft, the fourth shaft passes two fourth through-hole, fourth shaft hole can make second transition connection spare with the second pole setting is the rotation connection.
Preferably, the cross rod and the two clamping grooves are in interference fit and are connected in the two clamping grooves in a sliding mode.
Preferably, the first fixing block and the second fixing block have the same shape, the first embedding space and the second embedding space have the same structure, and when the first fixing block and the second fixing block are fixed on the hole ring, the first embedding space and the second embedding space are aligned and the center lines of the first embedding space and the second embedding space are on the same axis.
Preferably, a first opening is formed in the surface of the first fixing block along the longitudinal length of the first fixing block, the first opening is communicated with the first embedding space, a second opening is formed in the surface of the second fixing block along the longitudinal length of the second fixing block, and the second opening is communicated with the second embedding space;
when the hole ring fixing device is used, the first fixing block and the second fixing block are fixedly arranged on the hole ring, the first opening is close to the hole ring, and the second opening is close to the hole ring.
Preferably, the first pin body with first inlay and establish space interference fit and be detachable the inlaying and establish, the second pin body with the second inlays and establishes space interference fit and be detachable the inlaying and establish.
Preferably, the first vertical rod and the second vertical rod are the same in shape, and the connecting position of the first vertical rod and the first fixing block and the connecting position of the second vertical rod and the second fixing block are symmetrical based on the middle position between the first fixing block and the second fixing block.
Preferably, the length of the first lead pin body is larger than that of the first embedding space, and the length of the second lead pin body is larger than that of the second embedding space.
The invention also provides a needle guiding device comprising the needle guiding body, so the technical effects are the same as those of the needle guiding device; the position of the guide needle body can be adjusted through the sliding connection of the guide needle body in the fixed block, so that the guide needle body can be closer to the fracture of a patient when in use, the kirschner wire can be ensured to directly enter the fracture after being led out from the guide needle channel, and the phenomenon of bending of the kirschner wire can be avoided; in addition, the device simple structure only includes two pole settings and the horizontal pole with fixed block matched with, and occupation space is less, portable use.
Preferably, two pole settings all with horizontal pole sliding connection, the accessible slides, adjusts the distance between two fixed blocks.
As the preferred, the pole setting all is the rotation with between the corresponding fixed block and is connected, the flexible operation, when carrying out the operation, the accessible adjusting position avoids some surgical devices among the prior art because of fixed setting influences the problem in operation space.
Preferably, a transition connecting piece is arranged, so that the transverse rod and the vertical rod can be rotatably connected, and the operation flexibility is improved.
Preferably, the surface of the first fixed block is provided with a first opening along the longitudinal length thereof, the first opening is communicated with the first embedding space, the surface of the second fixed block is provided with a second opening along the longitudinal length thereof, and the second opening is communicated with the second embedding space; when the fixing device is used, the first fixing block and the second fixing block are fixedly arranged on the hole ring, the first opening is close to the hole ring, and the second opening is close to the hole ring; for this reason, it can be further ensured that the k-wire can be closer to the hole ring.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a needle body of a needle introducing device provided by the present invention;
fig. 2 is a schematic structural diagram of a specific embodiment of a needle guiding device provided by the present invention.
The reference numerals in fig. 1-2 are as follows:
the novel needle comprises a needle body 1, a needle body 2, a needle channel 3, a Kirschner wire 4, a first fixing block 5, a second fixing block 6, a first needle body 7, a second needle body 8, a first vertical rod 9, a second vertical rod 10, a cross rod 11, a fixing column 12, a first connecting plate 13, a second connecting plate 14, a first plate body 15, a third connecting plate 16, a second plate body 17, a fourth connecting plate 18 and a clamping groove 19.
Detailed Description
For a clearer understanding of the contents of the present invention, reference will be made to the accompanying drawings and detailed description.
Fig. 1 is a schematic structural view of one embodiment of a needle guiding body of a needle guiding device provided by the present invention;
fig. 2 is a schematic structural diagram of a specific embodiment of a needle guiding device provided by the present invention.
With reference to fig. 1-2, the present invention provides a needle body 1 of a needle guiding device, including a needle main body 2 having a longitudinal length, a needle channel 3 penetrating the needle main body 2 along the longitudinal length direction is arranged in the needle main body 2, the needle channel 3 is used for embedding a kirschner wire 4 which is matched and can slide in the needle channel 3, and the needle channel 3 is eccentrically arranged in the needle main body 2;
in use, the needle body 2 is fixedly arranged parallel to the surface of the bore ring (not shown) and the biased needle passage 3 is adjacent to the surface of the bore ring.
Be equipped with eccentric settings's guide pin passageway 3 in the guide pin body 1, firstly, guide pin passageway 3 can realize the direction to ke shi needle 4, secondly, eccentric settings's guide pin passageway 3, when using, this guide pin passageway 3 is close to the hole ring, can make the ke shi needle 4 of arranging in guide pin passageway 3 more be close to this hole ring, when the needle threading end is taked away this guide pin body 1, this ke shi needle 4 can more be close hole ring position, be convenient for through lock needle ware with ke shi needle 4 be fixed in on the hole ring. The guide needle channel 3 which is eccentrically arranged can guide the trend of the Kirschner wire 4, and is convenient for the subsequent positioning and installation of the Kirschner wire 4 and the hole ring. Specifically, after the guide needle body 1 is removed, the kirschner wire 4 can be closer to the hole ring due to the eccentric arrangement, and the removability of the kirschner wire 4 can be reduced when the needle locking device is used for positioning.
In one embodiment, the lead body 2 is a prism, and in particular, as shown in fig. 1, the lead body 2 may be an octagonal prism.
The needle body 2 is a prism body, so that the needle body 2 can be conveniently installed and fixed. The needle guiding body 2 is made into a prism, correspondingly, the shape of the channel for installing the needle guiding body 2 is matched with the prism, the prism is in a prismatic structure, and the edge of the prism can prevent the needle guiding body from rotating, so that the needle guiding channel 3 is always positioned at a position close to the hole ring. Of course, the present invention is not limited to this, and a cylinder or the like may be used.
In this specific embodiment, the needle body 2 is an octagonal prism, one side of the octagonal prism pointed along the eccentric direction of the needle channel 3 is a tangent side, a part of the curved surface of the needle channel 3 close to the tangent side is a tangent curved surface, and the tangent side and the tangent curved surface are arranged in a tangent manner.
One side surface of the octagonal prism body pointed along the eccentric direction of the guide needle channel 3 is a tangent side surface, part of the curved surface of the guide needle channel 3 close to the tangent side surface is a curved surface, and the tangent side surface and the tangent curved surface are arranged in a tangent mode, so that the limit eccentric position can be reached, and the Kirschner wire 4 can be closer to the position of the hole ring.
In another embodiment, the side of the octagonal prism pointed by the eccentric direction may be opened, and at this time, the kirschner wire 4 placed in the guide pin channel 3 is exposed in the air, and this arrangement makes the kirschner wire 4 closer to the position of the hole ring, but it is supposed to ensure that the guide pin channel 3 can firmly fix the kirschner wire 4 placed therein.
In this embodiment, the length of the needle body 1 is 60mm or more.
The length of the needle body 1 is more than or equal to 60mm, and the needle threading positioning of most of the Kirschner wires 4 in the market can be met.
In addition, the inner diameter of the guide needle channel 3 can be determined according to specific working conditions, and the guide needle bodies 1 with various inner diameters can be prepared so as to be matched with the Kirschner wires 4 with various sizes.
When establishing in leading needle passageway 3 ke shi needle 4, leading needle passageway 3 with ke shi needle 4 interference fit sliding connection.
As shown in fig. 1 and 2, the present invention further provides a needle guiding device, which includes a first fixing block 5 and a second fixing block 6 having a longitudinal length and end surfaces opposite to each other, wherein each of the first fixing block 5 and the second fixing block 6 is provided with an embedding space extending along a length direction of the corresponding fixing block and penetrating through the corresponding fixing block, and is respectively a first embedding space and a second embedding space, the first embedding space is embedded with a first needle guiding body 7 having a shape matching the first embedding space and capable of sliding in the first embedding space, the second embedding space is embedded with a second needle guiding body 8 having a shape matching the second embedding space and capable of sliding in the second embedding space, the first needle guiding body 7 and the second needle guiding body 8 are the above-mentioned needle guiding body 1, the needle guiding channel in the first needle guiding body 7 is a first needle guiding channel, the needle guiding channel in the second needle guiding body 8 is a second needle guiding channel, and further includes a first vertical rod 9, a second vertical rod 10 and a second vertical rod 11, the first vertical rod 5 is connected to the first vertical rod 5, the upper surface of the first fixing block 5 is connected to the second fixing block 6, and the upper surface of the second fixing block is provided with a corresponding fixing block 10, and the upper surface of the second vertical rod 11, and the second fixing block is provided with a corresponding fixing block 12 for connecting the first vertical rod 9 and the upper surface of the second vertical rod 6;
when the fixing column 12 is used, the fixing column is inserted into the hole ring, the first guide needle body 7 and the second guide needle body 8 are respectively moved in the first fixing block 5 and the second fixing block 6 to be close to a fracture part, the first guide needle channel is aligned with the second guide needle channel, and the needle tip of the kirschner wire 4 with the diameter matched with the inner diameter of the first guide needle channel and the second guide needle channel is led out from the first guide needle channel, passes through the fracture part and is led into the second guide needle channel.
The needle guiding device comprises the needle guiding body 1, so the technical effects are the same as those of the needle guiding device; the position of the needle body 1 can be adjusted through the sliding connection of the needle body 1 in the fixing block, so that the needle body can be closer to the fracture of a patient when in use, the Kirschner wire 4 can be ensured to directly enter the fracture after being led out from the needle leading channel 3, and the phenomenon that the Kirschner wire 4 is bent can be avoided; in addition, the device simple structure only includes two pole settings and the horizontal pole with fixed block matched with, and occupation space is less, portable use.
In the needle guiding device, a first vertical rod 9 is connected with a cross rod 11 in a sliding mode, the first vertical rod 9 can slide along the length direction of the cross rod 11 relative to the fixed cross rod 11, a second vertical rod 10 is connected with the cross rod 11 in a sliding mode, and the second vertical rod 10 can slide along the length direction of the cross rod 11 relative to the fixed cross rod 11. First pole setting 9 with first fixed block 5 is the rotation of each other and connects, first pole setting 9 is for fixed first fixed block 5 can be followed the circumferencial direction of first fixed block 5 rotates, second pole setting 10 with second fixed block 6 is the rotation of each other and connects, second pole setting 10 is for fixed second fixed block 6 can be followed the circumferencial direction of second fixed block 6 rotates, first pole setting 9 with horizontal pole 11 is the rotation of each other and connects, first pole setting 9 is for fixed horizontal pole 11 can be followed the circumferencial direction of horizontal pole 11 rotates, second pole setting 10 with horizontal pole 11 is the rotation of each other and connects, second pole setting 10 is for fixed horizontal pole 11 can be followed horizontal pole 11's circumferencial direction rotates.
Specifically, in a specific embodiment, two opposite first connecting plates 13 are convexly arranged on the upper surface of a first fixing block 5, corresponding first through holes are formed in the two first connecting plates 13, a first shaft hole matched with the first through hole is formed in one end, connected with the first fixing block 5, of the first upright rod 9, and a first shaft penetrates through the two first through holes and the first shaft hole, so that the first upright rod 9 and the first fixing block 5 are mutually and rotatably connected;
the protruding relative two second connecting plates 14 of establishing of second fixed block 6 upper surface, two corresponding second through-hole has all been seted up on the second connecting plate 14, second pole setting 10 is connected the one end of second fixed block 6 is seted up the matching the second shaft hole of second through-hole still includes the second shaft, the second shaft passes two second through-hole, second shaft hole can make second pole setting 10 with second fixed block 6 is the rotation connection each other.
For example, two opposite connecting plates may be disposed at one end of the first vertical rod 9 close to the first fixing block 5, a protruding block may be disposed on the first fixing block 5, the protruding block may be embedded between the two opposite connecting plates, and holes may be disposed at positions corresponding to the two connecting plates and the protruding block, and a rotating shaft may be disposed in the holes to realize the rotational connection between the two connecting plates; similarly, the rotary connection between the second vertical rod 10 and the second fixed block 6 can also adopt the mode.
In addition, in this specific embodiment, the connecting structure further includes a first transition connecting piece, where the first transition connecting piece includes a first plate body 15, a clamping groove 19 is formed on an upper surface of the first plate body 15 for clamping the cross rod 11, two opposite third connecting plates 15 are convexly disposed on a lower surface of the first plate body 15, two corresponding third through holes are disposed on each of the two third connecting plates 16, a third shaft hole matching the third through hole is disposed at one end of the first upright rod 9 close to the cross rod 11, and a third shaft passes through the two third through holes and the third shaft hole to enable the first transition connecting piece and the first upright rod 9 to be connected in a mutual rotation manner;
still include second transition connection spare, second transition connection spare includes second plate body 17, the upper surface of second plate body 17 is formed with draw-in groove 19 and is used for the joint horizontal pole 11, the protruding two relative fourth connecting plates 18 that are equipped with of lower surface of second plate body 17, two corresponding fourth through-hole has all been seted up on the fourth connecting plate 18, second pole setting 10 is close to the one end of horizontal pole 11 is seted up and is matchd the fourth shaft hole of fourth through-hole still includes the fourth shaft, the fourth shaft passes two fourth through-hole, fourth shaft hole can make second transition connection spare with second pole setting 10 is the rotation connection each other.
Certainly, the connection is not limited to this, for example, two opposite connection plates may be disposed at one end of the first vertical rod 9 close to the cross rod 11, a protrusion may be disposed on a lower surface of the first transition piece, the protrusion is embedded in a space between the two opposite connection plates, and the protrusion and the two connection plates are provided with holes penetrating through the three, a shaft may be disposed in the hole to realize the rotational connection between the two, and similarly, the middle mode may be employed between the second vertical rod 10 and the cross rod 11; for the sliding connection between the cross rod 11 and the first vertical rod 9, a groove may be formed on one surface of the cross rod 11 close to the first vertical rod 9, and a sliding block matching the groove is formed on one end of the first vertical rod 9 close to the cross rod 11, so as to realize the sliding connection between the two, and similarly, the sliding connection between the second vertical rod 10 and the cross rod 11 may also adopt this manner.
Two pole settings all with 11 sliding connection of horizontal pole, the accessible slides, adjusts the distance between two fixed blocks.
The upright stanchions are rotatably connected with the corresponding fixing blocks, the operation is flexible, and when an operation is performed, the positions can be adjusted, so that the problem that the operation space is influenced by the fixed arrangement of some operation devices in the prior art is solved.
The transition connecting piece is arranged, so that the cross rod 11 and the vertical rod can be rotatably connected, and the operation flexibility is improved.
In this embodiment, the cross bar 11 and the two slots 19 are slidably connected in the two slots 19 in an interference fit manner.
Further, first fixed block 5 is the same with 6 shapes of second fixed block, first inlay establish the space with the second inlays to establish the space structure the same, first fixed block 5 with second fixed block 6 is fixed in when the hole ring is gone up, first inlay establish the space with the second inlays to establish the space and aligns and both central lines are located same axis.
In this specific embodiment, a first opening is formed on the surface of the first fixed block 5 along the longitudinal length thereof, the first opening is communicated with the first embedding space, a second opening is formed on the surface of the second fixed block 6 along the longitudinal length thereof, and the second opening is communicated with the second embedding space;
when the hole ring is used, the first fixing block 5 and the second fixing block 6 are fixedly arranged on the hole ring, the first opening is close to the hole ring, and the second opening is close to the hole ring.
A first opening is formed in the surface of the first fixing block 5 along the longitudinal length of the first fixing block, the first opening is communicated with the first embedding space, a second opening is formed in the surface of the second fixing block 6 along the longitudinal length of the second fixing block, and the second opening is communicated with the second embedding space; when the device is used, the first fixing block 5 and the second fixing block 6 are fixedly arranged on the hole ring, the first opening is close to the hole ring, and the second opening is close to the hole ring; for this reason, it can be further ensured that the k-wire 4 (which is fixed in the fixing block by the needle body 1) can be brought closer to the eyelet.
As shown in fig. 2, the first pin body 7 is detachably embedded in the first embedding space in an interference fit manner, and the second pin body 8 is detachably embedded in the second embedding space in an interference fit manner.
The shapes of the first vertical rod 9 and the second vertical rod 10 are the same, and the connecting position of the first vertical rod 9 and the first fixing block 5 and the connecting position of the second vertical rod 10 and the second fixing block 6 are symmetrical based on the middle position between the first fixing block 5 and the second fixing block 6.
The symmetrical arrangement can facilitate the device to be placed and manufactured.
In addition, the length of the first lead needle body 7 is larger than that of the first embedding space, and the length of the second lead needle body 8 is larger than that of the second embedding space.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the invention.
Claims (15)
1. A needle guiding device is characterized by comprising a first fixed block and a second fixed block which have longitudinal length and end faces which are oppositely arranged, wherein the first fixed block and the second fixed block are respectively provided with an embedding space which extends along the length direction of the corresponding fixed block and penetrates through the corresponding fixed block, the first embedding space and the second embedding space are respectively embedded in the first embedding space and the second embedding space, a first needle guiding body is embedded in the first embedding space and can slide in the first embedding space, a second needle guiding body is embedded in the second embedding space and can slide in the second embedding space, the first needle guiding body and the second needle guiding body are both needle guiding bodies, each needle guiding body comprises a needle guiding body with longitudinal length, a needle guiding channel which is embedded in the needle guiding body and can slide in the needle guiding channel along the longitudinal length direction of the needle guiding body is arranged in the needle guiding body, the needle guiding channel is used for embedding a kirschner needle which is matched with the needle guiding channel and can slide in the needle guiding channel, and the needle guiding channel is eccentrically arranged in the needle guiding body; when the needle guide device is used, the needle guide main body is fixedly arranged in parallel to the surface of the hole ring, and the needle guide channel which is arranged in a deflected manner is close to the surface of the hole ring;
the device comprises a first needle guiding body, a second needle guiding body, a first vertical rod, a second vertical rod, a cross rod, a first fixing block, a second fixing block and a hole ring, wherein the needle guiding passage in the first needle guiding body is a first needle guiding passage, the needle guiding passage in the second needle guiding body is a second needle guiding passage, the device also comprises the first vertical rod, the second vertical rod and the cross rod, the upper surface of the first fixing block is connected with the first vertical rod, the upper surface of the second fixing block is connected with the second vertical rod, one ends, far away from the corresponding fixing blocks, of the first vertical rod and the second vertical rod are respectively connected with the cross rod, and the lower surfaces of the first fixing block and the second fixing block are respectively provided with a fixing column for being spliced and placed at a fracture part;
when the fixing column is used, the fixing column is inserted into the hole ring, the first guide needle body and the second guide needle body are respectively moved in the first fixing block and the second fixing block to be close to the fracture part, the first guide needle channel is aligned with the second guide needle channel, and the needle tip of the kirschner needle with the diameter matched with the inner diameter of the first guide needle channel and the second guide needle channel is led out from the first guide needle channel, passes through the fracture part and is led into the second guide needle channel.
2. The needle guiding device as claimed in claim 1, wherein the first vertical rod is slidably connected to the cross rod, the first vertical rod is slidable relative to the fixed cross rod along the length direction of the cross rod, the second vertical rod is slidably connected to the cross rod, and the second vertical rod is slidable relative to the fixed cross rod along the length direction of the cross rod.
3. The needle guiding device as claimed in claim 2, wherein the first vertical rod is rotatably connected to the first fixing block, the first vertical rod is rotatable relative to the fixed first fixing block in a circumferential direction of the first fixing block, the second vertical rod is rotatably connected to the second fixing block, the second vertical rod is rotatable relative to the fixed second fixing block in a circumferential direction of the second fixing block, the first vertical rod is rotatably connected to the cross rod, the first vertical rod is rotatable relative to the fixed cross rod in a circumferential direction of the cross rod, the second vertical rod is rotatably connected to the cross rod, and the second vertical rod is rotatable relative to the fixed cross rod in a circumferential direction of the cross rod.
4. The needle guiding device as claimed in claim 3, wherein two opposite first connecting plates are convexly arranged on the upper surface of the first fixed block, corresponding first through holes are arranged on the two first connecting plates, a first shaft hole matched with the first through hole is arranged at one end of the first vertical rod connected with the first fixed block, and the needle guiding device further comprises a first shaft which passes through the two first through holes and the first shaft hole and can enable the first vertical rod and the first fixed block to be mutually rotatably connected;
the upper surface of the second fixing block is convexly provided with two opposite second connecting plates, two corresponding second through holes are formed in the second connecting plates, the second vertical rod is connected with one end of the second fixing block, a second shaft hole matched with the second through holes is formed in one end of the second fixing block, the second fixing block further comprises a second shaft, and the second shaft penetrates through the two second through holes and the second shaft hole to enable the second vertical rod to be rotatably connected with the second fixing block.
5. The needle guiding device according to claim 3, further comprising a first transition connecting piece, wherein the first transition connecting piece comprises a first plate body, a clamping groove is formed in the upper surface of the first plate body and used for clamping the cross rod, two opposite third connecting plates are convexly arranged on the lower surface of the first plate body, corresponding third through holes are formed in the two third connecting plates, a third shaft hole matched with the third through hole is formed in one end, close to the cross rod, of the first vertical rod, and a third shaft penetrates through the two third through holes and the third shaft hole to enable the first transition connecting piece and the first vertical rod to be connected in a mutually rotating mode;
still include second transition connection spare, second transition connection spare includes the second plate body, the upper surface of second plate body is formed with the draw-in groove and is used for the joint the horizontal pole, the protruding two relative fourth connecting plates that are equipped with of lower surface of second plate body, two corresponding fourth through-hole has all been seted up on the fourth connecting plate, the second pole setting is close to the one end of horizontal pole is seted up and is matchd the fourth shaft hole of fourth through-hole still includes the fourth shaft, the fourth shaft passes two fourth through-hole, fourth shaft hole can make second transition connection spare with the second pole setting is the rotation connection.
6. The needle guiding device as defined in claim 5, wherein the cross bar is slidably engaged with the locking grooves on the upper surfaces of the first and second plates in an interference fit.
7. The needle guiding device as defined in claim 1, wherein the first fixing block and the second fixing block have the same shape, the first insertion space and the second insertion space have the same configuration, and when the first fixing block and the second fixing block are fixed to the eyelet ring, the first insertion space and the second insertion space are aligned and center lines thereof are located on the same axis.
8. The needle guiding device according to claim 7, wherein a first opening is provided on a surface of the first fixed block along a longitudinal length thereof, the first opening being communicated with the first embedding space, a second opening is provided on a surface of the second fixed block along a longitudinal length thereof, the second opening being communicated with the second embedding space;
when the hole ring is used, the first fixing block and the second fixing block are fixedly arranged on the hole ring, the first opening is close to the hole ring, and the second opening is close to the hole ring.
9. The needle guiding device as claimed in claim 1, wherein the first needle body is detachably embedded in the first embedding space in an interference fit manner, and the second needle body is detachably embedded in the second embedding space in an interference fit manner.
10. The needle guiding device as claimed in claim 7, wherein the first vertical rod and the second vertical rod are identical in shape, and a connection position of the first vertical rod to the first fixed block and a connection position of the second vertical rod to the second fixed block are symmetrical based on a middle position between the first fixed block and the second fixed block.
11. The needle device as claimed in claim 1, wherein the first needle body has a length larger than that of the first fitting space, and the second needle body has a length larger than that of the second fitting space.
12. The needle device of claim 1, wherein the needle body is prismatic.
13. The needle device as claimed in claim 12, wherein the needle body is a octagonal prism, a side of the octagonal prism pointed in the direction of eccentricity of the needle channel is a tangential side, and a part of the curved surface of the needle channel adjacent to the tangential side is a tangential curved surface, and the tangential side and the tangential curved surface are arranged tangentially.
14. The needle device of claim 1, wherein the length of the needle body is 60mm or more.
15. The needle device as claimed in claim 1, wherein when the kirschner wire is embedded in the needle channel, the needle channel is in interference fit sliding connection with the kirschner wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011336734.9A CN112426221B (en) | 2020-11-25 | 2020-11-25 | Needle guiding device and needle guiding body thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011336734.9A CN112426221B (en) | 2020-11-25 | 2020-11-25 | Needle guiding device and needle guiding body thereof |
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| CN112426221A CN112426221A (en) | 2021-03-02 |
| CN112426221B true CN112426221B (en) | 2023-03-31 |
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| CN202011336734.9A Active CN112426221B (en) | 2020-11-25 | 2020-11-25 | Needle guiding device and needle guiding body thereof |
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Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1543858A1 (en) * | 2003-12-18 | 2005-06-22 | Unomedical Limited | Needle with guide and positioning means |
| DE502005002984D1 (en) * | 2005-01-24 | 2008-04-10 | Ami Gmbh | Device for the surgical closure of a trocar puncture |
| CN104665921B (en) * | 2015-02-15 | 2017-02-01 | 陆爱清 | Intramedullary nail entry regulation combined apparatus |
| CN206565981U (en) * | 2016-08-31 | 2017-10-20 | 左振柏 | A kind of heel string stitching unstrument |
| CN208784904U (en) * | 2018-04-19 | 2019-04-26 | 叶智江 | Kirschner wire guider |
| CN208942414U (en) * | 2018-06-05 | 2019-06-07 | 张坡 | Anterior cruciate ligament Anatomical Reconstruction approach guides locator |
| CN109009396A (en) * | 2018-09-03 | 2018-12-18 | 卢正波 | One kind is intercondylar to reset thread a needle pincers and its application method |
| CN209316025U (en) * | 2018-10-13 | 2019-08-30 | 范士洁 | A kind of pull needle fixed frame for eccentric single armed Bone traction |
| CN209916139U (en) * | 2019-01-29 | 2020-01-10 | 刘生和 | Minimally invasive needle-threading sighting device for wrist joint |
| CN210158682U (en) * | 2019-04-19 | 2020-03-20 | 中国人民解放军联勤保障部队第九0四医院 | Fixed infection prevention device for orthopedic traction needle |
| CN111658122A (en) * | 2020-06-29 | 2020-09-15 | 高晓强 | But quick adjustment's orthopedics kirschner wire location director |
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