CN212118228U - Auxiliary instrument for repairing articular cartilage injury by applying microfracture technology - Google Patents

Auxiliary instrument for repairing articular cartilage injury by applying microfracture technology Download PDF

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Publication number
CN212118228U
CN212118228U CN201922433201.1U CN201922433201U CN212118228U CN 212118228 U CN212118228 U CN 212118228U CN 201922433201 U CN201922433201 U CN 201922433201U CN 212118228 U CN212118228 U CN 212118228U
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microfracture
sliding rod
supporting arm
arc
shaped groove
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CN201922433201.1U
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杨波
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Peking Union Medical College Hospital Chinese Academy of Medical Sciences
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Peking Union Medical College Hospital Chinese Academy of Medical Sciences
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Abstract

The utility model discloses an auxiliary appliance for repairing articular cartilage injury by applying microfracture technology, which comprises a force application part, a connecting sleeve and a connecting rod, wherein the force application part comprises a sliding rod and a sliding block, a stop cap is arranged at one end part of the sliding rod, and the sliding block can freely slide on the sliding rod; the connecting sleeve is used for being sleeved at a proper position of the microfracture repairing operation body and fixed at the proper position; the connecting rod comprises a first end, a second end and a connecting rod body between the first end and the second end, the first end is fixedly connected with the connecting sleeve, the second end is movably connected with the other end of the sliding rod of the force application part, and the first end and the second end are separated from each other by a first distance in the extending direction of the sliding rod and a second distance in the vertical direction of the sliding rod. The other end of the sliding rod is closer to the microfracture repair operation body than the stop cap and the sliding block, and the sliding rod can move towards or away from the microfracture repair operation body. The utility model discloses can the accurate control doctor direction of exerting oneself to avoid the vice damage to the subchondral bone, improve the microfracture curative effect.

Description

Auxiliary instrument for repairing articular cartilage injury by applying microfracture technology
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to use appurtenance of microfracture technique restoration articular cartilage damage.
Background
The cartilage is a structure which is covered on the surface of the bone in the joint, and has good elasticity, so that the vibration and the impact of the connected bone in the motion process can be buffered; and the cartilage has smooth surface and very small surface friction, so that the motion between adjacent bones is smoother. Injury during exercise or cartilage abrasion with age, cartilage thinning, even rupture and loss, called cartilage injury, pain, swelling, limited movement and other symptoms of affected joints, and serious influence on joint function and life quality of patients at the end stage are called as immortal cancer. At the moment, the artificial joint replacement operation is needed for treatment, the risk and the cost are high, and the heavy economic burden is brought to the society and the family.
Cartilage damage is a common disease, no ideal treatment method exists at present, and the cartilage damage repair method which is widely applied at present is micro-fracture, namely, holes with certain depth are made on the surface of exposed subchondral bone at a cartilage defect part at intervals by using special instruments, so that bone marrow cells and blood are coagulated to form smooth and firm repair tissues to replace the cartilage. A common tool for cartilage damage is a microfracture instrument. A microfracture instrument is an orthopedic instrument used for minimally invasive treatment under an arthroscope. The existing microfracture apparatus is typically a microfracture special-purpose hand awl, which comprises a repair tip and an operation handle.
The microfracture operation requires a doctor to operate in a narrow joint cavity, when a microfracture instrument with a certain bending angle is used, the surgeon needs to rely on the wrist strength and punch a hole on the surface of the bone in the joint of a patient through the tip of the microfracture instrument, and the tip of the microfracture instrument and an operating handle are not in the same straight line but in a certain angle, so that the tip of the operating handle directly knocking the tail of the operating handle can horizontally shift in the bone instead of the downward force perpendicular to the surface of the bone required by the operation, and the subchondral bone can be damaged, thereby affecting the curative effect of the microfracture operation. And the tip part of the device is positioned at the far end of the micro-fracture device, which belongs to a labor-consuming lever and is not beneficial to the operation of doctors. For this reason, when using the existing microfracture instruments, doctors often need to assist the auxiliary tools to complete the operation smoothly. However, the existing microfracture repair auxiliary instrument has a simple structure, basically only can play a role of mechanical conduction, and is difficult to realize complex functions to be realized (such as targeted force application, matching of tips with different angles, adjustable instrument fixing positions, matching of microfracture instruments with different diameters and different lengths and the like).
Therefore, the existing microfracture repair auxiliary instrument has poor applicability and poor use flexibility, does not substantially help to improve the accuracy of the operation, and can cause side damage to subchondral bone; in addition, the existing microfracture repair auxiliary instrument cannot help doctors to save physical strength, so that the doctors can spend more energy on the operation.
SUMMERY OF THE UTILITY MODEL
In order to improve the accuracy of the operation, the above-mentioned problems such as doctor's operation of being convenient for, reduction operation wound are solved, the utility model aims to provide an use the auxiliary instrument of little fracture technique restoration articular cartilage damage.
In order to realize the purpose of the utility model, the utility model firstly provides an auxiliary instrument for repairing articular cartilage injury by applying microfracture technology, which comprises a force application part, a connecting sleeve and a connecting rod,
the force application part comprises a sliding rod and a sliding block, a stop cap is arranged at one end of the sliding rod, and the sliding block can freely slide on the sliding rod;
the connecting sleeve is used for being sleeved at a proper position of the microfracture repairing operation body and fixed at the proper position;
the connecting rod comprises a first end, a second end and a connecting rod body between the first end and the second end, the first end is fixedly connected with the connecting sleeve, the second end is movably connected with the other end of the sliding rod of the force application part to achieve the adjustment of the operation length of the sliding rod, and the first end and the second end are separated by a first distance in the extending direction of the sliding rod and a second distance in the direction perpendicular to the sliding rod;
wherein the other end portion of the slide bar is closer to the microfracture repair operation body than the cut-off cap and the slider, and the slide bar is movable toward or away from the microfracture repair operation body.
In order to fix the connecting sleeve with the microfracture repair operation bodies with different diameters, the connecting sleeve preferably comprises a buckling device and a fixing connecting port arranged on one side of the buckling device, and the first end is fixedly connected into the fixing connecting port.
In a preferred embodiment, the fastening device comprises an upper clamping shell, a lower clamping shell and a bolt structure, one end of the upper clamping shell is connected with one end shaft of the lower clamping shell, the other end of the upper clamping shell is fixedly connected with the other end of the lower clamping shell through the bolt structure, the fixed connecting port is arranged on the upper clamping shell, an internal thread is arranged inside the fixed connecting port, an external thread is arranged at the first end, and the first end is in threaded connection with the fixed connecting port.
In order to realize that the slide bar has different angles for microfracture point portion, the utility model discloses an adjustment the slide bar with the device of angle between the link body realizes, and technical personnel in the field can know, and the connecting piece that can satisfy this condition is all in the utility model discloses a within range.
In a preferred embodiment, the second end includes a support portion, a rotation portion, and first and second tightening screws,
the supporting part is of a fork arm structure, the fork arm structure comprises a first supporting arm and a second supporting arm, a first arc-shaped groove is formed in the inner wall of the first supporting arm, a first through hole penetrating through the first supporting arm is formed in the center of the first arc-shaped groove, and internal threads are formed in the inner wall of the first through hole; a second arc-shaped groove is formed in the inner wall of the second supporting arm, a second through hole penetrating through the second supporting arm is formed in the center of the second arc-shaped groove, and internal threads are formed in the inner wall of the second through hole; the first arc-shaped groove and the first through hole are symmetrically arranged with the second arc-shaped groove and the second through hole respectively;
the rotating part is a nut with a smooth outer wall and positioned between the first supporting arm and the second supporting arm, the nut is in threaded connection with the other end of the sliding rod so that the sliding rod can penetrate through the space between the first supporting arm and the second supporting arm, and part of the outer wall of the rotating part is just attached to the first arc-shaped groove and the second arc-shaped groove;
the first tightening screw penetrates through the first through hole to be in threaded connection with the first supporting arm, and applies force to the outer wall of the rotating part; the second screwing screw penetrates through the second through hole and is in threaded connection with the second supporting arm, and applies force to the outer wall of the other side of the rotating portion.
Preferably, the yoke structure provides space for the nut to rotate.
Preferably, the included angle alpha between the sliding rod and the connecting rod body is adjustable.
The utility model discloses the beneficial effect of device is:
practical improvement has been made to the apparatus on general microfracture apparatus basis to effectively combine with former microfracture apparatus, preferably, can fix the operating handle department at microfracture apparatus, through the angle of adjusting the slide bar with the link body of rod, can realize that the slide bar has different operating angle for microfracture restoration pointed end. The instrument can be fixed with microfracture bodies with different diameters by adjusting the connecting sleeve, and the microfracture restoration tip part can be quickly erected; through the length of adjusting the slide bar, can be used for the patient of different skeleton characteristics to the pertinence, reduce the risk that causes the patella to damage because of the in-process of punching. In addition, the angle of the sliding rod is adjustable, and the sliding rod can be matched with microfracture instruments (special hand cones for microfracture) with different tip angles. Therefore, a doctor only needs to lightly hold the operating handle with one hand, and the other hand (or an assistant) slides the sliding block to hammer the stop cap of the sliding rod upwards to generate an upward impulse. The upward force is transmitted to the operating handle of the microfracture instrument by the connecting rod and then transmitted to the tip of the microfracture instrument, and the operation process can be completed by repeating the action for a plurality of times continuously, so that the strength of a doctor is saved. In a word, the utility model provides an apparatus, simple structure, design benefit can effectively reduce the level that the doctor exerted oneself to can better control the dynamics of exerting oneself, promote operation accuracy nature.
Drawings
FIG. 1 is a schematic view of an auxiliary instrument for repairing articular cartilage injury by microfracture;
FIG. 2 is a schematic view showing one of the states of the auxiliary device for repairing articular cartilage injury by microfracture and the microfracture repairing operation body of the present invention after the auxiliary device is fixedly connected to the microfracture repairing operation body;
fig. 3 is a schematic structural view of the connecting sleeve of the present invention;
fig. 4 is a schematic structural view of an embodiment of the second end of the connecting rod of the present invention.
The reference numbers are as follows:
the device comprises a sliding rod 1, a stop cap 11, a sliding block 2, a second end 3, a connecting rod 4, a microfracture restoration tip 5, a first end 6, a connecting sleeve 7, an operating handle 8, an upper clamping shell 71, a lower clamping shell 72, a bolt 73, a fixed connecting port 74, a supporting part 31, a rotating part 32, a first tightening screw 33, a second tightening screw 34, a first supporting arm 311, a second supporting arm 312, a first arc-shaped groove 313 and a second arc-shaped groove 314.
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.
As shown in fig. 1, an auxiliary apparatus for repairing articular cartilage injury by using microfracture technology provided by an embodiment of the present invention mainly comprises a force application portion, a connection sleeve 7 and a connection rod 4. The force application part comprises a sliding rod 1 and a sliding block 2, a stop cap 11 is arranged at one end of the sliding rod 1, and the sliding block 2 can freely slide on the sliding rod 1 along the sliding rod 1. As shown in fig. 2, the connecting sleeve 7 is used to be sleeved on and fixed at a proper position of the microfracture restoration operation body, and for convenience of operation, the connecting sleeve 7 may be preferably sleeved on and fixed at a joint of the microfracture restoration tip 5 and the operation handle 8 of the microfracture restoration operation body in use, but in actual use, the fixing position of the connecting sleeve 7 is properly adjusted in consideration of the specific conditions of different patients. The connecting rod 4 comprises a first end 6, a second end 3 and a connecting rod body therebetween, the first end 6 is fixedly connected with the connecting sleeve 7, for example, the first end 6 is vertically and fixedly connected to the connecting sleeve 7, the second end 3 is movably connected with the other end of the sliding rod 1 of the force application part to realize that the operation length of the sliding rod 1 is adjustable, the first end 6 and the second end 3 are separated by a first distance D1 (i.e., the vertical distance from the second end 3 to the microfracture repair operation body in fig. 2) in the extending direction of the sliding rod 1 and a second distance D2 in the perpendicular direction to the sliding rod 1 (i.e., the direction of the microfracture repair operation body in fig. 2), in this embodiment, the first distance D1 can be set to 18cm, and the second distance D2 can be set to 12 cm. In this embodiment, the other end portion of the slide rod 1 is closer to the microfracture repair operation body than the cut-off cap 11 and the slider 2, and the slide rod 1 is movable toward or away from the microfracture repair operation body.
For example, the shape of the connection rod body is not limited to the L shape shown in fig. 1 and fig. 2, and all the connection pieces that can ensure that the microfracture repair operation body and the force application part are separated by a proper distance to provide a space with an adjustable length of the sliding rod are within the protection scope of the present invention.
Practical improvement has been made to the apparatus on general microfracture apparatus basis to effectively combine with former microfracture apparatus, can fix the operating handle department at microfracture apparatus, through the angle of adjusting the slide bar with the link body, can realize that slide bar and different angles microfracture restore pointed end cooperation are used.
In a specific embodiment, the connecting sleeve includes a fastening device and a fixed connecting port provided at one side of the fastening device, and the first end is fixedly connected to the inside of the fixed connecting port. As shown in fig. 3, the fastening device includes an upper clamping shell 71, a lower clamping shell 72 and a bolt structure 73, one end of the upper clamping shell 71 is connected with one end shaft of the lower clamping shell 72, the other end of the upper clamping shell 71 is fixedly connected with the other end of the lower clamping shell 72 through the bolt structure 73, a fixed connection port 74 is fixedly arranged on the upper clamping shell 71, an internal thread is arranged inside the fixed connection port 74, an external thread is arranged at the first end 6, and the first end 6 is in threaded connection with the fixed connection port 74.
The utility model discloses a adapter sleeve 7 is through reasonable improvement buckle device for through adjustment adapter sleeve 7, just can realize that this apparatus is fixed with the microfracture body of different diameters, and can realize the quick rising of microfracture restoration pointed end portion. The upper and lower pods are shown in FIG. 3 as being arcuate, however, in other embodiments, the upper and lower pods may also be angled pods that together have a diamond shape. In addition, the clamping shell can be embedded with rubber materials for better fixation and can be fixed at the handle of the special hand awl for microfracture.
In a specific embodiment, as shown in fig. 4, the second end 3 includes a supporting portion 31, a rotating portion 32, a first tightening screw 33 and a second tightening screw 34, the supporting portion 31 is a yoke structure, the yoke structure provides a space for the rotating portion 32 to rotate, the yoke structure includes a first supporting arm 311 and a second supporting arm 312, a first arc-shaped groove 313 is formed on an inner wall of the first supporting arm, a first through hole penetrating through the first supporting arm 311 is formed in the center of the first arc-shaped groove 313, and an internal thread is formed on an inner wall of the first through hole; a second arc-shaped groove 314 is formed in the inner wall of the second support arm 312, a second through hole penetrating through the second support arm 312 is formed in the center of the second arc-shaped groove 314, and an internal thread is formed in the inner wall of the second through hole; the first arc-shaped groove and the first through hole are symmetrically arranged with the second arc-shaped groove and the second through hole respectively;
the rotating portion 32 is a nut with a smooth outer wall and located between the first support arm 311 and the second support arm 312, the nut is screwed to the other end of the sliding rod so that the sliding rod passes through between the first support arm and the second support arm, and a part of the outer wall of the rotating portion is just fit with the first arc-shaped groove and the second arc-shaped groove, preferably, the rotating portion 32 is a spherical nut;
the first tightening screw 33 is screwed with the first support arm 311 through the first through hole, and applies force to the outer wall of the rotating portion 32; the second tightening screw 34 passes through the second through hole to be screwed with the second support arm 312, and applies force to the outer wall of the other side of the rotating portion 32.
In this embodiment, the first support arm 311 and the second support arm 312 are integrally formed with the connecting rod body.
The through-hole that is equipped with in the rotating part 32 in this embodiment with slide bar threaded connection, the length that should set up the adjustable slide bar, and then can be used for the patient of different skeleton characteristics to the pertinence, reduce the risk that causes the patella to damage because of the in-process of punching. In addition, the device can enable the sliding rod and the microfracture restoration tip part to be positioned on the same vertical line, the upward force is transmitted to the microfracture instrument operating handle through the crank and then transmitted to the microfracture restoration tip part, the action is continuously repeated for many times, the operation process can be completed, and the strength of a doctor is saved. However, in other embodiments, the rotating portion 32 may not be required, and the sliding rod passes directly between the first support arm 311 and the second support arm 312, and the force of the first tightening screw 33 and the second tightening screw 34 acts directly on the sliding rod.
On the basis of the research of the utility model, the utility model provides a second end 3 also can be regarded as independent mounting and use also on other devices the utility model discloses an in the protection scope.
Preferably, the included angle alpha between the sliding rod 1 and the connecting rod body is adjustable, and the angle alpha can be adjusted within the range of 15-135 degrees.
The utility model discloses whole use as follows: the slide block 2 is slid to knock the stop cap 11 upwards, so that the whole instrument has upward impulse, and the micro fracture repair tip 5 also has upward impulse due to the tight combination of the whole device, so that the micro fracture operation can be performed on the cartilage. The whole operation process is labor-saving and easy to operate.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (6)

1. An auxiliary instrument for repairing articular cartilage injury by applying microfracture technology is characterized by comprising a force application part, a connecting sleeve and a connecting rod,
the force application part comprises a sliding rod and a sliding block, a stop cap is arranged at one end of the sliding rod, and the sliding block can freely slide on the sliding rod;
the connecting sleeve is used for being sleeved and fixed at a proper position of the microfracture repair operation body;
the connecting rod comprises a first end, a second end and a connecting rod body between the first end and the second end, the first end is fixedly connected with the connecting sleeve, the second end is movably connected with the other end of the sliding rod of the force application part to achieve the adjustment of the operation length of the sliding rod, and the first end and the second end are separated by a first distance in the extending direction of the sliding rod and a second distance in the direction perpendicular to the sliding rod;
wherein the other end portion of the slide bar is closer to the microfracture repair operation body than the cut-off cap and the slider, and the slide bar is movable toward or away from the microfracture repair operation body.
2. The auxiliary device for repairing articular cartilage damage by using microfracture technology as claimed in claim 1, wherein said connecting sleeve comprises a fastening device and a fixing connection port provided at one side of said fastening device, and said first end is fixedly connected to said fixing connection port.
3. The auxiliary device for repairing articular cartilage damage by using microfracture technology as claimed in claim 2, wherein said fastening means comprises an upper clamping shell, a lower clamping shell and a bolt structure, one end of said upper clamping shell is connected with one end of said lower clamping shell, the other end of said upper clamping shell is fixedly connected with the other end of said lower clamping shell by means of said bolt structure, said fixing connector is disposed on said upper clamping shell, said fixing connector has internal threads, said first end has external threads, and said first end is connected with said fixing connector by means of threads.
4. The auxiliary device for repairing articular cartilage damage using microfracture as claimed in claim 1, wherein the second end comprises a support portion, a rotation portion, a first tightening screw and a second tightening screw,
the supporting part is of a fork arm structure, the fork arm structure comprises a first supporting arm and a second supporting arm, a first arc-shaped groove is formed in the inner wall of the first supporting arm, a first through hole penetrating through the first supporting arm is formed in the center of the first arc-shaped groove, and internal threads are formed in the inner wall of the first through hole; a second arc-shaped groove is formed in the inner wall of the second supporting arm, a second through hole penetrating through the second supporting arm is formed in the center of the second arc-shaped groove, and internal threads are formed in the inner wall of the second through hole; the first arc-shaped groove and the first through hole are symmetrically arranged with the second arc-shaped groove and the second through hole respectively;
the rotating part is a nut with a smooth outer wall and positioned between the first supporting arm and the second supporting arm, the nut is in threaded connection with the other end of the sliding rod so that the sliding rod can penetrate through the space between the first supporting arm and the second supporting arm, and part of the outer wall of the rotating part is just attached to the first arc-shaped groove and the second arc-shaped groove;
the first tightening screw penetrates through the first through hole to be in threaded connection with the first supporting arm, and applies force to the outer wall of the rotating part; the second screwing screw penetrates through the second through hole and is in threaded connection with the second supporting arm, and applies force to the outer wall of the other side of the rotating portion.
5. The auxiliary device for repairing articular cartilage damage using microfracture as claimed in claim 4, wherein the yoke structure provides space for rotation of the nut.
6. The auxiliary device for repairing articular cartilage damage by using microfracture technology as claimed in claim 4, wherein the angle α between the slide bar and the connecting bar body is adjustable.
CN201922433201.1U 2019-12-30 2019-12-30 Auxiliary instrument for repairing articular cartilage injury by applying microfracture technology Active CN212118228U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922433201.1U CN212118228U (en) 2019-12-30 2019-12-30 Auxiliary instrument for repairing articular cartilage injury by applying microfracture technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922433201.1U CN212118228U (en) 2019-12-30 2019-12-30 Auxiliary instrument for repairing articular cartilage injury by applying microfracture technology

Publications (1)

Publication Number Publication Date
CN212118228U true CN212118228U (en) 2020-12-11

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Application Number Title Priority Date Filing Date
CN201922433201.1U Active CN212118228U (en) 2019-12-30 2019-12-30 Auxiliary instrument for repairing articular cartilage injury by applying microfracture technology

Country Status (1)

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CN (1) CN212118228U (en)

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Kangxi Biomedical (Shenzhen) Co.,Ltd.

Assignor: PEKING UNION MEDICAL COLLEGE Hospital

Contract record no.: X2024980004758

Denomination of utility model: An auxiliary instrument for repairing joint cartilage injury using microfracture technology

Granted publication date: 20201211

License type: Exclusive License

Record date: 20240422

EE01 Entry into force of recordation of patent licensing contract