CN215739264U - Tibial chisel for anterior cruciate ligament reconstruction - Google Patents
Tibial chisel for anterior cruciate ligament reconstruction Download PDFInfo
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- CN215739264U CN215739264U CN202122224336.4U CN202122224336U CN215739264U CN 215739264 U CN215739264 U CN 215739264U CN 202122224336 U CN202122224336 U CN 202122224336U CN 215739264 U CN215739264 U CN 215739264U
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- axial hole
- hole
- tibial
- connecting rod
- cruciate ligament
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Abstract
The utility model relates to the technical field of medical equipment, in particular to a tibia cutting device for anterior cruciate ligament reconstruction, which comprises a first main body part, a cutting part, a sliding mechanism and a guide needle, wherein the first main body part is provided with a front end and a rear end which are opposite, and a first axial hole is formed in the first main body part; the cutting part is fixedly connected with the front end and is provided with a second axial hole; the sliding mechanism is connected with the rear end and comprises a connecting rod part and a sliding part, the connecting rod part is provided with a third axial hole, and the first axial hole, the second axial hole and the third axial hole are communicated with each other; the guide needle penetrates through the first axial hole, the second axial hole and the third axial hole, and one end of the guide needle is configured to be capable of extending out of the cutting end of the cutting part; the method and the device are beneficial to reducing the situation that the slotting direction generates deviation.
Description
Technical Field
The present disclosure relates to the field of medical devices, and more particularly, to a tibial chisel for anterior cruciate ligament reconstruction.
Background
Currently, in anterior cruciate ligament reconstruction surgery, some interface screws (e.g., the Intra-fix screws of a company) require notching of the original tibial bone tunnel prior to use in order to better fit the interface screw system. During operation, firstly a guide pin is used for stabbing into an original tibial bone channel, a next direction is roughly determined, then the guide pin is drawn out, and the grooving device is used for knocking in the grooving according to the determined direction.
SUMMERY OF THE UTILITY MODEL
The present disclosure provides a tibial chisel for anterior cruciate ligament reconstruction to solve the technical problem recognized by the inventors that the direction of decision may be shifted during the slotting process.
The present disclosure provides a tibial chisel for anterior cruciate ligament reconstruction, comprising:
the first main body part is provided with a front end and a rear end which are opposite, and the first main body part is provided with a first axial hole;
the cutting part is fixedly connected with the front end and is provided with a second axial hole;
the sliding mechanism is connected with the rear end and comprises a connecting rod part and a sliding part, the sliding part is sleeved on the connecting rod part in a hollow mode and can move on the connecting rod part, one end of the connecting rod part is detachably and fixedly connected with the rear end, the connecting rod part is provided with a third axial hole, the first axial hole, the second axial hole and the third axial hole are coaxially arranged, and the first axial hole, the second axial hole and the third axial hole are communicated with each other; and
a guide pin inserted through the first axial hole, the second axial hole, and the third axial hole, and one end of the guide pin is configured to be able to protrude out of an excavation end of the excavation portion.
In any of the above technical solutions, further, the tibial chisel for anterior cruciate ligament reconstruction further includes:
the operation handle portion, operation handle portion includes horizontal portion and vertical portion, horizontal portion with the one end of vertical portion is connected, the other end that vertical portion is relative with the other end that connecting rod portion is relative is connected.
In any of the above technical solutions, further, one end of the link portion and the rear end are detachably and fixedly connected by a snap connection or a threaded connection.
In any of the above technical solutions, further, the rear end has a cross-shaped chuck; one end of the connecting rod part is provided with a cross-shaped clamping hole and a round hole connected with the clamping hole; the clamping table axially extends into the clamping hole and the round hole along the clamping hole and then rotates to enable one end of the connecting rod portion to be connected with the rear end.
In any of the above technical solutions, further, a locking nut is further disposed on the rear end in a sleeved manner, and one surface of the locking nut is configured to abut against one end surface of the connecting rod portion.
In any one of the above technical solutions, further, the rear end has a threaded post, one end of the connecting rod portion has a threaded hole, and the threaded post is in threaded connection with the threaded hole.
In any one of the above technical solutions, further, the rear end and the link portion are connected by a threaded sleeve, wherein the rear end has a polygonal insertion post, one end of the link portion has a polygonal insertion hole, and the polygonal insertion post is configured to be inserted into the polygonal insertion hole.
In any one of the above technical solutions, further, the transverse portion is in threaded connection with one end of the vertical portion, and the other end opposite to the vertical portion is in threaded connection with the other end opposite to the connecting rod portion.
In any of the above technical solutions, further, the guide needle has a plurality of scale marks that are distributed at equal intervals along an axial direction of the guide needle.
In any of the above technical solutions, further, the material of the sliding portion is plastic or metal.
The beneficial effect of this disclosure mainly lies in:
the tibia cutting device for anterior cruciate ligament reconstruction provided by the present disclosure comprises a first main body part, a cutting part, a sliding mechanism and a guide needle, wherein the first main body part is provided with a front end and a rear end which are opposite, and the first main body part is provided with a first axial hole; the cutting part is fixedly connected with the front end and is provided with a second axial hole; the sliding mechanism is connected with the rear end, the sliding mechanism comprises a connecting rod part and a sliding part, the sliding part is sleeved on the connecting rod part in a hollow mode and is configured to move on the connecting rod part, one end of the connecting rod part is detachably and fixedly connected with the rear end, the connecting rod part is provided with a third axial hole, the first axial hole, the second axial hole and the third axial hole are coaxially arranged, and the first axial hole, the second axial hole and the third axial hole are communicated with each other; the guide needle penetrates through the first axial hole, the second axial hole and the third axial hole, and one end of the guide needle is configured to be capable of extending out of the cutting end of the cutting part; through the arranged guide needle, the guide needle penetrates through the first axial hole, the second axial hole and the third axial hole, and one end of the guide needle is configured to be capable of extending out of the cutting end of the cutting part, so that the guide needle can be inserted into the original tibial bone channel to realize guiding, and meanwhile, the cutting part is facilitated to perform slotting, so that the guide needle is not pulled out during slotting, the slotting direction can be ensured to be correct, and the situation that the slotting direction deviates is reduced; further, the link portion may be struck to facilitate the travel of the cutting portion.
It is to be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily restrictive of the disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of the disclosure. Together, the description and drawings serve to explain the principles of the disclosure.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a tibial chisel for anterior cruciate ligament reconstruction in one or more embodiments;
figure 2 is a partial exploded view of the first body portion, the excavation portion, and the sliding mechanism of one or more embodiments;
figure 3 is a schematic illustration of the first body portion and the cutting portion coupled together in one or more embodiments;
FIG. 4 is a schematic diagram of the structure of a sliding mechanism in one or more embodiments;
FIG. 5 is a schematic structural view of a connection manner of the first main body part and the sliding mechanism in one or more embodiments;
FIG. 6 is a schematic structural diagram of yet another connection between the first body portion and the sliding mechanism according to one or more embodiments;
FIG. 7 is a schematic structural view of a tibial chisel for anterior cruciate ligament reconstruction having an operating handle portion in one or more embodiments (guide pin not installed);
fig. 8 is a schematic structural view of a tibial chisel for anterior cruciate ligament reconstruction having an operating handle portion (with a guide needle installed) according to one or more embodiments.
Icon:
101-a first body portion; 102-a cutting section; 103-a guide needle; 104-a first axial bore; 105-the cutting end; 106-disc structure; 107-link section; 108-a sliding part; 111-clamping table; 112-card hole; 113-round hole; 114-a lock nut; 115-threaded post; 116-polygonal insert posts; 117-thread sleeve; 118-a transverse portion; 119-vertical portion.
Detailed Description
The technical solutions of the present disclosure will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present disclosure, but not all embodiments.
All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing and simplifying the present disclosure, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present disclosure, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.
Referring to fig. 1-8, in one or more embodiments, a tibial chisel for anterior cruciate ligament reconstruction is provided, comprising: a first body 101, a cutting section 102, a slide mechanism, and a guide pin 103; the first main body part 101 is provided with a front end and a rear end which are opposite, and the first main body part 101 is provided with a first axial hole 104; the cutting part 102 is fixedly connected with the front end, and the cutting part 102 is provided with a second axial hole; the sliding mechanism is connected with the rear end, wherein the sliding mechanism comprises a connecting rod part 107 and a sliding part 108, the sliding part 108 is sleeved on the connecting rod part 107 in a hollow mode, the sliding part 108 is configured to be capable of moving on the connecting rod part 107, one end of the connecting rod part 107 is detachably and fixedly connected with the rear end, a third axial hole is formed in the connecting rod part 107, the first axial hole 104, the second axial hole and the third axial hole are coaxially arranged, and the first axial hole 104, the second axial hole and the third axial hole are communicated with each other; the guide pin 103 is inserted into the first axial hole 104, the second axial hole, and the third axial hole, and one end of the guide pin 103 is configured to protrude out of the cutting end 105 of the cutting portion 102, so that the guide pin 103 can protrude into the original tibial bone tunnel.
In some embodiments, the cutting portion 102 is integrally connected to the front end, or the cutting portion 102 is fixedly connected to the front end by screwing. The cutting portion 102 is used for grooving, and the specific shape and structure thereof may be the prior art, and the disclosure will not be specifically described. The connecting rod portion 107 includes a rod body and disc structures 106 disposed at two opposite ends of the rod body, and the diameter of the disc structures 106 is larger than that of the rod body, so that the sliding portion 108 is limited on the rod body. The disc structure 106 is fixedly connected with the rod body in a threaded connection mode, or the disc structure 106 is integrally connected with the rod body. The sliding portion 108 is cylindrical, and the diameter of the sliding portion 108 is larger than the diameter of the disc structure 106. Both ends of the guide needle 103 may be blunt, i.e. both ends of the guide needle 103 may be in the shape of a spherical crown.
In at least one embodiment, the tibial cutting device for anterior cruciate ligament reconstruction is provided, the guide needle 103 is arranged in the first axial hole 104, the second axial hole and the third axial hole in a penetrating manner, one end of the guide needle 103 is configured to extend out of the cutting end 105 of the cutting part 102, so that the guide needle 103 can be inserted into the original tibial bone tunnel to realize guidance, and the cutting part 102 is further facilitated to perform cutting, so that the guide needle 103 is not drawn out during cutting, the correct direction of cutting can be ensured, and the situation that the cutting direction deviates is favorably reduced; also with slide 108, link portion 107 may be struck to facilitate travel of cutting portion 102.
In some embodiments, the end of the rod portion 107 is detachably fixed to the rear end by a snap-fit connection or a threaded connection. This enables replacement between the sliding mechanism and the first body portion 101 to meet the needs of different situations.
Referring to fig. 2 to 4, in one embodiment, the rear end has a clamping platform 111 in a cross shape; one end of the connecting rod part 107 is provided with a cross-shaped clamping hole 112 and a round hole 113 connected with the clamping hole 112; the locking boss 111 axially extends into the locking hole 112 and the circular hole 113 along the locking hole 112, and then rotates to connect one end of the link portion 107 with the rear end. This facilitates the snap-fit connection between the rear end and the link portion 107. The shape of the clamping hole 112 is matched with that of the clamping platform 111; the maximum radial diameter of the lands 111 is less than or equal to the diameter of the circular holes 113. The snap hole 112 and the circular hole 113 are opened in one of the disc structures 106 of the link portion. The chucking hole 112 and the circular hole 113 are sequentially provided and communicated in the axial direction of the disc structure 106. The axial length of the circular hole 113 is greater than or equal to the axial length of the clamping table 111; after entering the fastening hole 112, the fastening platform 111 continues to advance, the fastening platform 111 enters the circular hole 113, and then the fastening platform 111 is rotated to realize the connection between the one end and the rear end of the connecting rod portion 107. A lock nut 114 is further disposed on the rear end in a sleeved manner, and one surface of the lock nut 114 is configured to abut against one end surface of the link portion, so that the one end and the rear end of the link portion 107 are fixedly connected in a clamped manner. When the locking platform 111 rotates in the circular hole 113, the locking screw 117 is screwed to make the locking screw 117 abut against one surface of the disc structure 106 provided with the locking hole 112 and the circular hole 113, so that the connecting rod portion 107 and the rear end of the first main body portion 101 are fixedly connected in a clamping connection manner under the action of the locking screw 117 and the locking platform 111. It should be noted that a stop block may be disposed at the bottom of the circular hole 113, so that the clamping platform 111 can be easily removed from the circular hole 113 after the clamping platform 111 rotates in the circular hole 113 by a set angle.
Referring to fig. 5, in some other embodiments, the rear end has a threaded post 115, one end of the rod portion 107 has a threaded hole, and the threaded post 115 is threadedly coupled with the threaded hole, thereby achieving a detachable fixed connection between the one end and the rear end of the rod portion 107 by way of the threaded connection.
Referring to fig. 6, in some other embodiments, the rear end is connected to the link portion 107 by a threaded sleeve 117, wherein the rear end has a polygonal insertion post 116 with a polygonal radial cross section, one end of the link portion 107 has a polygonal insertion hole, and the polygonal insertion post 116 is configured to be inserted into the polygonal insertion hole. Thus, the polygonal inserting column 116 is inserted into the polygonal inserting hole to realize circumferential fixation between the rear end and the connecting rod part, the thread sleeve 117 is respectively in threaded connection with the rear end and the connecting rod part, axial fixation between the rear end and the connecting rod part 107 is realized, the stability of connection between the rear end and the connecting rod part 107 is ensured, and then the one end and the rear end of the connecting rod part 107 are fixedly connected in a detachable mode through threaded connection.
Referring to fig. 7 and 8, in some embodiments, the tibial chisel for anterior cruciate ligament reconstruction further comprises: an operating handle portion comprising a transverse portion 118 and a vertical portion 119, the transverse portion 118 being connected to one end of the vertical portion 119, the opposite end of the vertical portion 119 being connected to the opposite end of the link portion 107. When the operating handle portion is provided, a fourth axial hole is further provided through the transverse portion 118 and the vertical portion 119, and the first axial hole 104, the second axial hole, the third axial hole, and the fourth axial hole are coaxially provided so that the guide needle 103 can pass through. The handle part is operated to facilitate screwing and holding.
In one embodiment, transverse portion 118 is threadably coupled to one end of vertical portion 119, the opposite end of vertical portion 119 is threadably coupled to the opposite end of link portion 107, and the opposite end of particular vertical portion 119 is threadably coupled to the other disk structure 106 of link portion 107.
In some embodiments, the guide needle 103 has a plurality of scale marks (not shown) distributed at equal intervals along the axial direction of the guide needle 103, and the scale marks are configured to facilitate observation of the depth of the guide needle 103 inserted into the original tibial bone tunnel. It should be noted that, a plurality of scale marks may also be distributed on the first body portion 101 at equal intervals along the axial direction of the first body portion 101, so as to observe the depth of the tibial chisel inserted into the original tibial bone tunnel.
In some embodiments, the material of the sliding portion 108 is plastic or metal. The metal may be stainless steel. The plastic may be PBC, ABS or PE.
In some embodiments, the first axial bore 104, the second axial bore, the third axial bore, and the fourth axial bore have a bore diameter of 1.5mm to 5mm, and a particular bore diameter may be 2mm, 2.5mm, 3mm, 3.5mm, 4mm, or 4.5 mm. It is noted that in some embodiments, a fiber optic endoscope may be attached to the guide needle 103 to view the condition of the slot.
The tibial chisel for anterior cruciate ligament reconstruction provided in at least one embodiment guides the progression of the chisel 102 by inserting a guide pin 103 into the original tibial bone tunnel; and the guide pin 103 does not need to be withdrawn during the travel of the cutting section 102, which facilitates the correctness of the direction of the grooving.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; while the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.
Claims (10)
1. A tibial chisel for anterior cruciate ligament reconstruction, comprising:
the first main body part is provided with a front end and a rear end which are opposite, and the first main body part is provided with a first axial hole;
the cutting part is fixedly connected with the front end and is provided with a second axial hole;
the sliding mechanism is connected with the rear end and comprises a connecting rod part and a sliding part, the sliding part is sleeved on the connecting rod part in a hollow mode and can move on the connecting rod part, one end of the connecting rod part is detachably and fixedly connected with the rear end, the connecting rod part is provided with a third axial hole, the first axial hole, the second axial hole and the third axial hole are coaxially arranged, and the first axial hole, the second axial hole and the third axial hole are communicated with each other; and
a guide pin inserted through the first axial hole, the second axial hole, and the third axial hole, and one end of the guide pin is configured to be able to protrude out of an excavation end of the excavation portion.
2. The tibial chisel for anterior cruciate ligament reconstruction as recited in claim 1, further comprising:
the operation handle portion, operation handle portion includes horizontal portion and vertical portion, horizontal portion with the one end of vertical portion is connected, the other end that vertical portion is relative with the other end that connecting rod portion is relative is connected.
3. The tibial excavator for anterior cruciate ligament reconstruction according to claim 1 or 2, wherein the rod portion is detachably and fixedly connected between one end thereof and the rear end thereof by means of a snap-fit connection or a screw-thread connection.
4. The tibial excavator for anterior cruciate ligament reconstruction of claim 3 wherein the posterior end has a cruciform catch; one end of the connecting rod part is provided with a cross-shaped clamping hole and a round hole connected with the clamping hole; the clamping table axially extends into the clamping hole and the round hole along the clamping hole and then rotates to enable one end of the connecting rod portion to be connected with the rear end.
5. The tibial excavator for anterior cruciate ligament reconstruction of claim 4 wherein a locking nut is also disposed over the posterior end, a face of the locking nut being configured to abut an end face of the rod portion.
6. The tibial excavator for anterior cruciate ligament reconstruction of claim 3 wherein the posterior end has a threaded post and one end of the rod portion has a threaded hole, the threaded post being threadedly connected to the threaded hole.
7. The tibial excavator for anterior cruciate ligament reconstruction according to claim 3, wherein the rear end is connected to the rod portion by a screw sleeve, and wherein the rear end has a polygonal insertion post and the rod portion has a polygonal insertion hole at one end, and the polygonal insertion post is configured to be inserted into the polygonal insertion hole.
8. The tibial excavator for anterior cruciate ligament reconstruction of claim 2 wherein the transverse portion is threadedly connected to one end of the vertical portion and the opposite end of the vertical portion is threadedly connected to the opposite end of the rod portion.
9. The tibial excavator for anterior cruciate ligament reconstruction according to claim 1 or 2, wherein the guide needle has a plurality of scale lines thereon, the scale lines being equally spaced along an axial direction of the guide needle.
10. The tibial excavator for anterior cruciate ligament reconstruction according to claim 1 or 2, wherein the sliding portion is made of plastic or metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122224336.4U CN215739264U (en) | 2021-09-14 | 2021-09-14 | Tibial chisel for anterior cruciate ligament reconstruction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122224336.4U CN215739264U (en) | 2021-09-14 | 2021-09-14 | Tibial chisel for anterior cruciate ligament reconstruction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215739264U true CN215739264U (en) | 2022-02-08 |
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ID=80087493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122224336.4U Active CN215739264U (en) | 2021-09-14 | 2021-09-14 | Tibial chisel for anterior cruciate ligament reconstruction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215739264U (en) |
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2021
- 2021-09-14 CN CN202122224336.4U patent/CN215739264U/en active Active
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