CN217886181U - Kirschner wire fine-adjustment guider - Google Patents
Kirschner wire fine-adjustment guider Download PDFInfo
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- CN217886181U CN217886181U CN202220453408.4U CN202220453408U CN217886181U CN 217886181 U CN217886181 U CN 217886181U CN 202220453408 U CN202220453408 U CN 202220453408U CN 217886181 U CN217886181 U CN 217886181U
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- guide sleeve
- connecting shaft
- inner guide
- fine adjustment
- outer guide
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Abstract
The utility model provides a Kirschner wire fine adjustment guider, which comprises two outer guide sleeves, two positioning inner guide sleeves and two adjusting inner guide sleeves, wherein the side walls of the two outer guide sleeves are rotationally connected; the positioning inner guide sleeve is arranged in one of the outer guide sleeves in a penetrating manner, and a first through hole is formed in the positioning inner guide sleeve in a penetrating manner along the axial direction; the adjusting inner guide sleeve is arranged in the other outer guide sleeve in a penetrating mode, a second through hole penetrates through the adjusting inner guide sleeve and is arranged on the adjusting inner guide sleeve in a penetrating mode along the axial direction, or an included angle is formed between the central axis of the second through hole and the central axis of the adjusting inner guide sleeve. Through the technical scheme, the problem that the operation time and the operation wound are increased due to repeated adjustment in the operation is solved.
Description
Technical Field
The utility model relates to a medical appliance, in particular to a kirschner wire fine-adjustment guider.
Background
Kirschner wire positioning and fixation are one of the common surgical methods in orthopedic surgery. In the orthopedic surgery, a guide pin or a kirschner wire is often needed to perform positioning guide or fixation in the surgical processes of fracture closure needle threading external fixation, fracture closure reduction intramedullary nail internal fixation, fracture fixation, spine minimally invasive surgery and the like, and the guide pin or the kirschner wire cannot be positioned and fixed in place at one time in actual operation, so that the needle inserting position and the needle inserting angle are finely adjusted according to the perspective result.
Because of the lack of the fine adjustment guider of the Kirschner wire, the fine adjustment can be performed only by depending on the experience and hand feeling of an operator when the Kirschner wire is adjusted, and in the actual clinical work, because the soft tissue tension shields and the interference of factors such as the sliding, angle and position judgment errors of the Kirschner wire on the bone surface, the repeated adjustment is often performed according to the perspective result in the operation, and the operation wound caused by the repeated adjustment operation can be increased while the operation time is increased.
SUMMERY OF THE UTILITY MODEL
The main object of the utility model is to provide a kirschner wire fine-tuning guider to solve the problem that the repeated adjustment in the operation increases the operation time and the operation wound.
For solving the technical problem, the utility model discloses the technical scheme who takes lies in:
a k-wire fine adjustment guide, comprising:
the number of the outer guide sleeves is two, and the side walls of the two outer guide sleeves are rotationally connected;
the positioning inner guide sleeve is arranged in one of the outer guide sleeves in a penetrating mode, and a first through hole penetrates through the positioning inner guide sleeve along the axial direction;
and the adjusting inner guide sleeve is arranged in the other outer guide sleeve in a penetrating manner, and a second through hole is arranged on the adjusting inner guide sleeve in a penetrating manner.
As a further technical scheme, the second through hole penetrates through the adjusting inner guide sleeve along the axial direction.
As a further technical scheme, an included angle is formed between the central axis of the second through hole and the central axis of the adjusting inner guide sleeve.
As a further technical scheme, the included angle is 2-5 degrees.
As a further technical scheme, the side walls of the two outer guide sleeves are rotatably connected through a connecting piece, and the connecting piece comprises:
the connecting rod is provided with threads;
the first connecting shaft is fixedly sleeved at one end of the connecting rod, and the side wall of one of the outer guide sleeves is fixedly connected with the side wall of the first connecting shaft;
the second connecting shaft is rotatably sleeved on the connecting rod and is positioned at one end of the first connecting shaft, and the side wall of the other outer guide sleeve is fixedly connected with the side wall of the second connecting shaft;
and the locking nut is arranged on the connecting rod through threads, is positioned at one end, far away from the first connecting shaft, of the second connecting shaft and is used for locking the second connecting shaft with the first connecting shaft.
As a further technical scheme, a first limiting tooth is circumferentially arranged on the end face, close to the second connecting shaft, of the first connecting shaft;
the second connecting shaft is arranged along the axial sliding direction of the connecting rod, the second connecting shaft is close to the end face of the first connecting shaft, and second limiting teeth are arranged along the circumferential direction and are clamped with the first limiting teeth.
As a further technical scheme, one end of the positioning inner guide sleeve and one end of the adjusting inner guide sleeve are both provided with conical heads.
As a further technical scheme, the inner diameter of the outer guide sleeve is 9-11 mm, and the outer diameters of the positioning inner guide sleeve and the adjusting inner guide sleeve are both 7-9 mm.
The utility model has the advantages that:
the utility model discloses simple structure, through two outer guide ways of rotating the connection and the location in guide sleeve and the regulation in the guide sleeve's setting, can carry out accurate fine setting direction when orthopedic operation ke shi needle finely tunes, reduce the number of times and the operation time of adjustment, also be favorable to reducing the operation wound that the adjustment operation caused repeatedly simultaneously, it is practical reliable.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic perspective view of embodiment 1 of the present invention;
fig. 2 is a schematic perspective view of embodiment 2 of the present invention;
fig. 3 is a schematic sectional structural view of an adjusting inner guide sleeve according to embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of the fixing state of the connecting member of the present invention.
Description of the reference numerals
1. An outer guide sleeve; 2. positioning the inner guide sleeve; 3. a first perforation; 4. adjusting the inner guide sleeve; 5. a second perforation; 6. a connecting member; 61. a connecting rod; 62. a first connecting shaft; 63. a second connecting shaft; 64. a lock nut; 65. a first limit tooth; 66. a second limit tooth; 7. a conical head; 8. reference to k-wire; 9. and (5) fine-tuning the Kirschner wire.
Detailed Description
The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Example 1 as shown in figures 1 and 4,
the utility model provides a ke shi needle fine setting director mainly includes outer uide bushing 1, location interior guide sleeve 2, adjusts interior guide sleeve 4 and connecting piece 6.
The number of the outer guide sleeves 1 is two, the side walls of the two outer guide sleeves 1 are rotationally connected through a connecting piece 6, the connecting piece 6 comprises a connecting rod 61, a first connecting shaft 62, a second connecting shaft 63 and a lock nut 64, threads are arranged on the connecting rod 61, the first connecting shaft 62 is fixedly sleeved at one end of the connecting rod 61, the side wall of one outer guide sleeve 1 is fixedly connected with the side wall of the first connecting shaft 62, a first limit tooth 65 is circumferentially arranged on the end surface, close to the second connecting shaft 63, of the first connecting shaft 62, the second connecting shaft 63 is rotationally sleeved on the connecting rod 61 and is located at one end of the first connecting shaft 62, the side wall of the other outer guide sleeve 1 is fixedly connected with the side wall of the second connecting shaft 63, the second connecting shaft 63 is arranged in a sliding manner along the axial direction of the connecting rod 61, a second limit tooth 66 is circumferentially arranged on the end surface, close to the first connecting shaft 62, the second limit tooth 66 is clamped with the first limit tooth 65, and the lock nut 64 is arranged on the connecting rod 61 and is located at one end, far away from the first connecting shaft 62, and is located at one end of the second connecting shaft 63.
The positioning inner guide sleeve 2 is arranged in one outer guide sleeve 1 in a penetrating manner, one end of the positioning inner guide sleeve 2 is provided with a conical head 7, the positioning inner guide sleeve 2 and the conical head 7 are provided with a first through hole 3 in a penetrating manner along the axial direction and used for being sleeved on a reference Kirschner wire 8, and the diameter of the first through hole 3 can be set to be different specifications such as 1.2mm, 1.5mm, 1.8mm, 2.0mm and 2.5mm so as to adapt to Kirschner wires with different specifications;
adjust interior guide sleeve 4 and wear to establish in another outer guide sleeve 1, the one end of adjusting interior guide sleeve 4 is provided with cone 7, it is provided with second perforation 5 to run through along the axial on guide sleeve 4 and the cone 7 in adjusting for supply the fine setting kirschner wire 9 to penetrate, the diameter of second perforation 5 can set up to 1.2mm, 1.5mm, 1.8mm, 2.0mm, the different specifications of 2.5mm, in order to adapt to the kirschner wire of different specifications.
The inner diameter of the outer guide sleeve 1 is 9mm-11mm, preferably 10mm, and the outer diameters of the positioning inner guide sleeve 2 and the adjusting inner guide sleeve 4 are 7mm-9mm, preferably 8mm.
This embodiment is used for fine adjustment guidance of the insertion position of the kirschner wire (the same insertion angle as that of the reference kirschner wire 8). The specific adjusting steps are as follows: the Kirschner wire with poor fixing position and angle is taken as a reference Kirschner wire 8, the positioning inner guide sleeve 2 and the outer guide sleeve 1 are sequentially sleeved, the reference Kirschner wire 8 is arranged in the first through hole 3 in a penetrating way, then an adjusting inner guide sleeve 4 is inserted into the other outer guide sleeve 1 according to a perspective result, a second through hole 5 on the adjusting inner guide sleeve 4 is parallel to the first through hole 3 on the positioning inner guide sleeve 2, then the position of the other outer guide sleeve 1 is adjusted and fixed through a connecting piece 6, the adjusting inner guide sleeve 4 is adjusted to a corresponding position, and finally a fine adjusting Kirschner wire 9 is implanted according to the guide of the adjusting inner guide sleeve 4. The accurate guide to the needle inserting position is favorably carried out when the Kirschner wire for the orthopedic operation is finely adjusted, the adjusting times and the operation time are reduced, the operation wound caused by repeated adjusting operation is favorably reduced, and the accurate guide is practical and reliable.
The connecting piece 6 is used for realizing the rotary connection of the two outer guide sleeves 1, and the specific operation steps of the rotation of the outer guide sleeves 1 are as follows: the locking nut 64 is screwed to one end far away from the second connecting shaft 63, so that the second connecting shaft 63 is separated from the limitation of the locking nut 64, then the second connecting shaft 63 is pulled in the direction far away from the first connecting shaft 62, so that the second limiting teeth 66 on the second connecting shaft 63 are separated from the first limiting teeth 65 on the first connecting shaft 62, the free rotation of the second connecting shaft 63 on the connecting rod 61 is realized, and the 360-degree rotation between the two outer guide sleeves 1 is realized. After the position adjustment between the two outer guide sleeves 1 is completed, the second connecting shaft 63 is pulled reversely to clamp the first limiting teeth 65 and the second limiting teeth 66, and then the locking nut 64 is rotated reversely to lock the second connecting shaft 63 and the first connecting shaft 62, thereby completing the fixation. The structure is convenient to operate and high in practicability.
Example 2 as shown in figures 2-4,
the utility model provides a ke shi needle fine setting director mainly includes outer uide bushing 1, location interior guide sleeve 2, adjusts interior guide sleeve 4 and connecting piece 6. On the basis of the embodiment 1, the second through hole 5 penetrates through the adjusting inner guide sleeve 4 along the axial direction, and the included angle is adjusted to be arranged between the central axis of the second through hole 5 and the central axis of the adjusting inner guide sleeve 4, and the included angle is 2-5 degrees.
This embodiment is used for simultaneous fine adjustment of the needle insertion position and needle insertion angle with reference to the k-wire 8. The specific adjusting steps are as follows: the Kirschner wire with a poor fixed position and angle is taken as a reference Kirschner wire 8, the positioning inner guide sleeve 2 and the outer guide sleeve 1 are sequentially sleeved, the reference Kirschner wire 8 is arranged in the first through hole 3 in a penetrating manner, then the adjusting inner guide sleeve 4 is inserted into the other outer guide sleeve 1 according to a perspective result, an included angle with a certain angle is formed between the central axis of the second through hole 5 in the adjusting inner guide sleeve 4 and the central axis of the adjusting inner guide sleeve 4, the needle inserting angle can be finely adjusted, then the position of the other outer guide sleeve 1 is adjusted and fixed through the connecting piece 6, the adjusting inner guide sleeve 4 is adjusted to a corresponding position, the adjusting inner guide sleeve 4 can rotate 360 degrees in the outer guide sleeve 1 according to the angle requirement, and finally the fine adjusting Kirschner wire 9 is implanted according to the final positioning guide of the adjusting inner guide sleeve 4. The fine adjustment positioning and fixing device is beneficial to fine adjustment positioning and fixing of the needle inserting position and the needle inserting angle of the Kirschner wire which are relatively accurate according to the position of the Kirschner wire 8, reduces the adjusting times and the operation time, is also beneficial to reducing the operation wound caused by repeated adjustment operation, and is practical and reliable.
The utility model has the advantages that:
(1) The adjustment of the needle inserting position or the simultaneous adjustment of the needle inserting position and the needle inserting angle can be selected according to the requirement, and the type of the adjusting inner guide sleeve 4 for the fine adjustment of the Kirschner wire 9 to be inserted is selected, so that the fine adjustment is smoothly completed, and the practicability is high;
(2) The distance between the two outer guide sleeves 1 and the connecting piece 6 can be adjusted through the rotation of the second connecting shaft 63, and the two outer guide sleeves 1 are fixed through the matching of the first limiting teeth 65 and the second limiting teeth 66 and the locking of the locking nut 64, so that the effective and accurate guiding and positioning can be carried out on the needle inserting position of the Kirschner wire and the distance of the reference Kirschner wire 8 according to the needs in the operation;
(3) The design that the two inner guide sleeves and the two outer guide sleeves 1 are matched can ensure that the inner guide sleeve 4 with the second through hole 5 having an included angle can rotate 360 degrees in the outer guide sleeve 1 while the outer guide sleeve 1 is fixed, so as to adapt to the accurate guiding adjustment of multiple angles of the needle inserting point of the Kirschner wire in the operation as required.
The foregoing description is only of the preferred embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (8)
1. A Kirschner wire fine adjustment guide, comprising:
the device comprises two outer guide sleeves (1), wherein the side walls of the two outer guide sleeves (1) are rotatably connected;
the inner guide sleeve (2) is positioned, the inner guide sleeve (2) is arranged in one of the outer guide sleeves (1) in a penetrating mode, and a first through hole (3) penetrates through the inner guide sleeve (2) in the axial direction;
the adjusting inner guide sleeve (4) penetrates through the other outer guide sleeve (1), and a second through hole (5) penetrates through the adjusting inner guide sleeve (4).
2. A k-wire fine adjustment guide as claimed in claim 1, characterized in that said second through hole (5) is axially cut through said adjusting inner guide sleeve (4).
3. A k-wire fine adjustment guide as claimed in claim 1, characterized in that the central axis of the second through hole (5) is arranged at an angle to the central axis of the adjusting inner guide sleeve (4).
4. A k-wire fine adjustment guide as claimed in claim 3, wherein said included angle is from 2 ° to 5 °.
5. A k-wire fine adjustment guide as claimed in claim 1, characterized in that the side walls of the two outer guide sleeves (1) are rotatably connected by a connecting member (6), and the connecting member (6) comprises:
the connecting rod (61), wherein the connecting rod (61) is provided with a thread;
the first connecting shaft (62) is fixedly sleeved at one end of the connecting rod (61), and the side wall of one outer guide sleeve (1) is fixedly connected with the side wall of the first connecting shaft (62);
the second connecting shaft (63) is rotatably sleeved on the connecting rod (61) and is positioned at one end of the first connecting shaft (62), and the side wall of the other outer guide sleeve (1) is fixedly connected with the side wall of the second connecting shaft (63);
and the locking nut (64) is arranged on the connecting rod (61) through threads, is positioned at one end of the first connecting shaft (62) far away from the second connecting shaft (63), and is used for locking the second connecting shaft (63) with the first connecting shaft (62).
6. A Kirschner wire fine adjustment guide as claimed in claim 5, wherein a first limit tooth (65) is circumferentially arranged on the end surface of the first connecting shaft (62) close to the second connecting shaft (63);
second connecting axle (63) are followed the endwise slip setting of connecting rod (61), second connecting axle (63) are close to be provided with spacing tooth of second (66) along circumference on the terminal surface of first connecting axle (62), spacing tooth of second (66) with first spacing tooth (65) joint.
7. A k-wire fine adjustment guide as claimed in claim 1, characterized in that one end of the positioning inner guide sleeve (2) and one end of the adjusting inner guide sleeve (4) are provided with a conical head (7).
8. The kirschner wire fine adjustment guide as claimed in claim 1, wherein the inner diameter of the outer guide sleeve (1) is 9mm-11mm, and the outer diameters of the positioning inner guide sleeve (2) and the adjusting inner guide sleeve (4) are both 7mm-9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220453408.4U CN217886181U (en) | 2022-03-02 | 2022-03-02 | Kirschner wire fine-adjustment guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220453408.4U CN217886181U (en) | 2022-03-02 | 2022-03-02 | Kirschner wire fine-adjustment guider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217886181U true CN217886181U (en) | 2022-11-25 |
Family
ID=84106124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220453408.4U Active CN217886181U (en) | 2022-03-02 | 2022-03-02 | Kirschner wire fine-adjustment guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217886181U (en) |
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2022
- 2022-03-02 CN CN202220453408.4U patent/CN217886181U/en active Active
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