CN210697787U - Interlocking intramedullary nail sealing cap - Google Patents
Interlocking intramedullary nail sealing cap Download PDFInfo
- Publication number
- CN210697787U CN210697787U CN201920728115.0U CN201920728115U CN210697787U CN 210697787 U CN210697787 U CN 210697787U CN 201920728115 U CN201920728115 U CN 201920728115U CN 210697787 U CN210697787 U CN 210697787U
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- groove
- cap
- sealing cap
- ball
- inner cavity
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Abstract
The utility model is suitable for the technical field of medical equipment, and provides an interlocking intramedullary nail sealing cap, which comprises an implanting component and a screwing component, wherein the implanting component comprises a nail rod, a steering ball, a rotating block and a limiting groove, the steering ball is integrally formed with the nail rod and is positioned at the left end of the steering ball, the rotating block is integrally formed with the steering ball and is positioned at the periphery of the steering ball, the limiting groove is arranged at the left end of an inner cavity of the steering ball, the screwing component comprises a sealing cap, a ball groove, a limiting groove, a through hole, a limiting pin, a straight groove and a hexagonal groove, the ball groove is arranged at the right end of the inner cavity of the sealing cap, the clamping groove is sleeved in the inner cavity of the ball groove, and a group of straight grooves is added when the hexagonal groove is arranged at the left end of the sealing cap, so that the sealing cap can be screwed by the straight bottle opener when the hexagonal bottle opener slips after being used for multiple times, the implantation difficulty of the intramedullary nail is reduced, the implantation accuracy is ensured, and unnecessary operation time is reduced.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, especially, relate to an interlocking intramedullary nail sealing cap.
Background
The intramedullary nail is used for treating open or closed tibia and femur fracture, tibia and femur fracture adjacent to a joint, and tibia and femur diaphysis fracture in the bone operation. The product is divided into a tibia locked intramedullary nail, a femur locked intramedullary nail, an inverted locked intramedullary nail on a femur condyle, a femur reconstruction locked intramedullary nail and a gamma type locked intramedullary nail. Wherein the tibia locked intramedullary nail, the femur locked intramedullary nail and the femur condyle inverted locked intramedullary nail are composed of an intramedullary nail main nail, a locking nail and a sealing cap; the gamma-type locked intramedullary nail and the femur reconstruction locked intramedullary nail are composed of an intramedullary nail main nail, a locking nail, a tension screw and a sealing cap.
The existing interlocking intramedullary nail sealing cap is only provided with a group of hexagonal grooves, and when a slip phenomenon easily occurs after a hexagonal screwdriver is used for many times, the interlocking intramedullary nail can not be implanted normally, so that the implantation difficulty of the intramedullary nail is increased, and unnecessary operation time is increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides an interlocking intramedullary nail sealing cap, which aims to solve the problem that the prior interlocking intramedullary nail sealing cap only sets a group of hexagonal grooves, and when the phenomenon of skidding appears easily after the hexagonal screwdriver is used for a plurality of times, the interlocking intramedullary nail can not be implanted normally, thereby increasing the implantation difficulty of the intramedullary nail and increasing the unnecessary operation time.
The utility model is realized in such a way, the interlocking intramedullary nail sealing cap comprises an implanting component and a screwing component, wherein the implanting component comprises a nail rod, a steering ball, a rotating block and a limiting groove, the steering ball is integrally formed with the nail rod and is positioned at the left end of the steering ball, the rotating block is integrally formed with the steering ball and is positioned around the steering ball, and the limiting groove is arranged at the left end of the inner cavity of the steering ball;
twist and move the subassembly and include sealing cap, ball groove, spacing groove, through-hole, spacing pin, word groove and hexagonal groove, the ball that turns to is seted up in the inner chamber right-hand member of sealing cap, the draw-in groove cover is located the inner chamber of ball groove, the even equidistant setover of spacing groove is in the inside wall of ball groove, the turning block with spacing groove sliding connection, the through-hole is seted up in the left side center department of sealing cap, spacing pin with turn to the ball joint, and run through in the through-hole extremely the inner chamber of spacing groove, word groove with the left end of sealing cap, hexagonal groove set up with the left end of sealing cap, and be located around the through-hole.
The utility model discloses still provide preferred, spacing pin includes notch groove, fixture block, pin rod and round pin cap, the pin rod with round pin cap integrated into one piece, and be located the right-hand member of round pin cap, the notch groove is seted up in the right-hand member of pin rod, the fixture block with pin rod integrated into one piece, and be located the left end of pin rod.
The utility model discloses still provide preferred, implant the subassembly and still include the draw-in groove, the draw-in groove is seted up in the upper and lower both ends of spacing inslot chamber, the fixture block joint in the inner chamber of draw-in groove.
The utility model discloses still provide preferred, it still includes the cap groove to twist the subassembly, the cap groove is seted up in the inner chamber left end of through-hole, round pin cap joint in the inner chamber in cap groove.
The utility model discloses it is preferred still to provide, the left side of sealing cap is regular hexagonal shape limit structure.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an interlocking intramedullary nail sealing cap, through set up a set of straight line groove again when hexagonal groove at the left end of sealing cap for when the phenomenon of skidding appears after hexagonal bottle opener repetitious usage, can use a word bottle opener to twist and move sealing cap, reduce the implantation degree of difficulty of intramedullary nail, guarantee to implant the accuracy, reduce unnecessary operation time.
Drawings
FIG. 1 is a sectional view of the present invention;
FIG. 2 is an enlarged view of the part A structure of the present invention;
FIG. 3 is a left side view of the structure of the present invention;
FIG. 4 is a schematic view of the structure of the limit pin of the present invention;
fig. 5 is a schematic view of the structure of the steering ball of the present invention.
In the figure: 1-implantation component, 11-nail rod, 12-steering ball, 13-turning block, 14-limiting groove, 15-clamping groove, 2-screwing component, 21-sealing cap, 22-ball groove, 23-limiting groove, 24-through hole, 25-cap groove, 26-limiting pin, 261-notch groove, 262-clamping block, 263-pin rod, 264-pin cap, 27-straight groove and 28-hexagonal groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-5, the present invention provides a technical solution: an interlocking intramedullary nail sealing cap comprises an implanting component 1 and a screwing component 2, wherein the implanting component 1 comprises a nail rod 11, a steering ball 12, a rotating block 13 and a limiting groove 14, the steering ball 12 and the nail rod 11 are integrally formed and are positioned at the left end of the steering ball 12, the rotating block 13 and the steering ball 12 are integrally formed and are positioned around the steering ball 12, and the limiting groove 14 is arranged at the left end of an inner cavity of the steering ball 12;
twist and move subassembly 2 including sealing cap 21, ball groove 22, spacing groove 23, through-hole 24, spacing pin 26, straight line groove 27 and hexagonal groove 28, ball groove 22 is seted up in the inner chamber right-hand member of sealing cap 21, turns to ball 12 cover and locates the inner chamber of ball groove 22, the inside wall of ball groove 22 is seted up to spacing groove 23 evenly equidistant, turning block 13 and spacing groove 23 sliding connection, the left side center department of sealing cap 21 is seted up to through-hole 24, spacing pin 26 with turn to ball 12 joint, and run through in through-hole 24 to the inner chamber of spacing groove 14, straight line groove 27 and sealing cap 21's left end, the left end with sealing cap 21 is seted up to hexagonal groove 28, and is located through-hole 24 all around.
In the present embodiment, when the hexagonal socket 28 is opened at the left end of the cap 21 and a set of straight slots 27 is added, when the hexagonal screwdriver slips after being used for many times, the sealing cap 21 can be screwed by using a straight screwdriver, the implantation difficulty of the intramedullary nail is reduced, the implantation accuracy is ensured, the unnecessary operation time is reduced, meanwhile, by arranging the steering ball 12, the rotating block 13 and the limiting groove 23, the sealing cap 21 can freely rotate on the outer side of the steering ball 12, thereby facilitating the surgeon to screw the sealing cap 21 at any angle and implant the nail shaft 11 into the bone, meanwhile, the limiting pin 26 is arranged, so that after the nail rod 11 is implanted into a bone, the limiting pin 26 can be inserted into the through hole 24 and the inner cavity of the limiting groove 14, thereby limiting the rotation of the sealing cap 21 and avoiding the damage to the tissue around the sealing cap 21 of the patient caused by the continuous movement of the sealing cap 21.
Further, the limit pin 26 includes a notch 261, a clamping block 262, a pin 263 and a pin cap 264, the pin 263 and the pin cap 264 are integrally formed, and are located at the right end of the pin cap 264, the notch 261 is opened at the right end of the pin 263, the clamping block 262 and the pin 263 are integrally formed, and are located at the left end of the pin 263, the implant assembly 1 further includes a clamping groove 15, the clamping groove 15 is opened at the upper and lower ends of the inner cavity of the limit groove 14, and the clamping block 262 is clamped in the inner cavity of the clamping groove 15.
In this embodiment, the locking groove 15 is formed, and the locking block 262 is locked in the inner cavity of the locking groove 15, so that the pin rod 263 is limited, and the pin rod 263 is prevented from being separated from the inner cavity of the limiting groove 14.
Further, the screwing component 2 further comprises a cap groove 25, the cap groove 25 is arranged at the left end of the inner cavity of the through hole 24, and the pin cap 264 is clamped in the inner cavity of the cap groove 25.
In the present embodiment, the cap groove 25 can effectively accommodate the pin cap 264, and the cap groove 25 is prevented from protruding from the end surface of the seal cap 21.
Further, the left side surface of the sealing cap 21 is in a regular hexagonal structure.
In the present embodiment, the sealing cap 21 with a regular hexagonal structure can be used for screwing the sealing cap 21 by using a hexagon screwdriver and a straight screwdriver, and can also be used for screwing the sealing cap 21 by using an internal hexagonal screwdriver, so that the selection range of the implantation tool of the nail shaft 11 is increased.
The utility model discloses a theory of operation and use flow: after the utility model is installed, when the intramedullary nail is implanted, the hexagonal screwdriver can be used to insert the inner cavity of the hexagonal groove 28 and then the hexagonal screwdriver is screwed, thereby implanting the nail rod 11 into the bone, when the hexagonal screwdriver slips after long-time use, the straight screwdriver can be selected to insert the inner cavity of the straight groove 27, then the straight screwdriver is rotated, thereby implanting the nail rod 11 into the bone of a patient, avoiding the problem that the operation can not be normally performed because the hexagonal screwdriver slips after being used for many times, meanwhile, when the sealing cap 21 is screwed, the sealing cap 21 can be freely rotated, so that the rotating block 13 slides in the limiting groove 23, and when the sealing cap 21 is screwed, the limiting groove 23 can drive the rotating block 13 and the steering ball 12 to rotate, thereby driving the nail rod 11 to rotate and implanting the nail rod 11 into the bone, thereby, the operating doctor can screw the sealing cap 21 at any angle during the intramedullary nail implantation operation, therefore, the problem that the operation time is long or the operation is failed easily due to the fact that the operation space is small and the sealing cap 21 is not convenient for a surgeon to screw is solved, after the nail rod 11 is implanted, the limiting pin 26 is inserted into the through hole 24 and the inner cavity of the limiting groove 14, and the clamping block 262 is clamped in the inner cavity of the clamping groove 15.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. An interlocking intramedullary nail sealing cap is characterized in that: the implant component (1) comprises a nail rod (11), a steering ball (12), a rotating block (13) and a limiting groove (14), wherein the steering ball (12) and the nail rod (11) are integrally formed and are positioned at the left end of the steering ball (12), the rotating block (13) and the steering ball (12) are integrally formed and are positioned around the steering ball (12), and the limiting groove (14) is arranged at the left end of an inner cavity of the steering ball (12);
the screwing component (2) comprises a sealing cap (21), a ball groove (22), a limiting groove (23), a through hole (24), a limiting pin (26), a straight groove (27) and a hexagonal groove (28), wherein the ball groove (22) is arranged at the right end of the inner cavity of the sealing cap (21), a steering ball (12) is sleeved on the inner cavity of the ball groove (22), the limiting groove (23) is uniformly and equidistantly arranged on the inner side wall of the ball groove (22), a rotating block (13) is in sliding connection with the limiting groove (23), the through hole (24) is arranged at the center of the left side of the sealing cap (21), the limiting pin (26) is connected with the steering ball (12) in a clamping manner and runs through the inner cavity of the through hole (24) to the limiting groove (14), the straight groove (27) is arranged at the left end of the sealing cap (21), and the hexagonal groove (28) is arranged at the left end of the sealing cap (21), and is positioned around the through hole (24).
2. The interlocking intramedullary nail locking cap of claim 1, wherein: spacing pin (26) include notch groove (261), fixture block (262), pin pole (263) and round pin cap (264), pin pole (263) with round pin cap (264) integrated into one piece, and be located the right-hand member of round pin cap (264), notch groove (261) are seted up in the right-hand member of pin pole (263), fixture block (262) with round pin pole (263) integrated into one piece, and be located the left end of pin pole (263).
3. The interlocking intramedullary nail locking cap of claim 2, wherein: the implant component (1) further comprises a clamping groove (15), the clamping groove (15) is formed in the upper end and the lower end of the inner cavity of the limiting groove (14), and the clamping block (262) is clamped in the inner cavity of the clamping groove (15).
4. The interlocking intramedullary nail locking cap of claim 2, wherein: the screwing component (2) further comprises a cap groove (25), the cap groove (25) is formed in the left end of the inner cavity of the through hole (24), and the pin cap (264) is clamped in the inner cavity of the cap groove (25).
5. The interlocking intramedullary nail locking cap of claim 1, wherein: the left side surface of the sealing cap (21) is in a regular hexagonal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920728115.0U CN210697787U (en) | 2019-05-21 | 2019-05-21 | Interlocking intramedullary nail sealing cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920728115.0U CN210697787U (en) | 2019-05-21 | 2019-05-21 | Interlocking intramedullary nail sealing cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210697787U true CN210697787U (en) | 2020-06-09 |
Family
ID=70960343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920728115.0U Expired - Fee Related CN210697787U (en) | 2019-05-21 | 2019-05-21 | Interlocking intramedullary nail sealing cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210697787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022038871A1 (en) * | 2020-08-18 | 2022-02-24 | 株式会社日本エム・ディ・エム | End cap used for intramedullary nail, intramedullary nail, end cap insertion instrument, and intramedullary nail insertion instrument |
-
2019
- 2019-05-21 CN CN201920728115.0U patent/CN210697787U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022038871A1 (en) * | 2020-08-18 | 2022-02-24 | 株式会社日本エム・ディ・エム | End cap used for intramedullary nail, intramedullary nail, end cap insertion instrument, and intramedullary nail insertion instrument |
| JP2022034191A (en) * | 2020-08-18 | 2022-03-03 | 株式会社日本エム・ディ・エム | End cap used for intramedullary nail, intramedullary nail, end cap insertion instrument, and intramedullary nail insertion instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 Termination date: 20210521 |