CN212438720U - Novel meniscus stitching instrument and implant clamping device - Google Patents
Novel meniscus stitching instrument and implant clamping device Download PDFInfo
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- CN212438720U CN212438720U CN202020551230.8U CN202020551230U CN212438720U CN 212438720 U CN212438720 U CN 212438720U CN 202020551230 U CN202020551230 U CN 202020551230U CN 212438720 U CN212438720 U CN 212438720U
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Abstract
The utility model provides a novel meniscus stitching instrument and implant screens device, including first implant mounting, first implant mounting has implant front end, implant rear end, is used for holding first through wires hole and the second through wires hole that the suture passed, the implant front end is the inclined plane structure, the implant rear end is asymmetric V-arrangement groove structure, first through wires hole and second through wires hole run through the lateral wall of first implant mounting, locate in the hole of pjncture needle before first implant mounting implants, the hole of pjncture needle is equipped with the push rod of looks adaptation; after the first implant fixing piece is pushed out of the inner hole of the puncture needle by the push rod, the direction of the first implant fixing piece deflects. The utility model provides a pair of novel meniscus stitching instrument and implant screens device has solved the problem that implant mounting has the screens to become invalid, has realized effective screens, and then has provided for the success of meniscus stitching operation to rely on and guarantee.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to novel meniscus stitching instrument and implant screens device.
Background
The meniscus is a bone tissue with medial and lateral half-moon shapes on the tibial articular surface, and the normal meniscus has the functions of increasing tibial condyle depression and lining femoral medial and lateral condyles, and also has the functions of increasing the stability of the joint and buffering the oscillation. With the rise of outdoor exercises and extreme sports, sports injuries are increased day by day, meniscus injuries are more common, the importance of menisci is recognized, the consensus of menisci among doctors and patients is kept as much as possible, and therefore, the meniscus injuries with surgical indications are sewn and repaired.
Referring to fig. 1, in a meniscus suture instrument of CN209252988U, when the output shaft sleeve rotates outwards along the needle rod, the second implant fixing member 3 at the position of the head end of the needle rod is pushed to realize the pushing-out action, so that the thread outlet position is better controlled. However, the above solution has a problem in that the second implant fixture 3 cannot smoothly change the posture in a predetermined and intended manner, and thus cannot smoothly achieve the seizing in the suturing and suture-withdrawing process using the meniscal suture instrument.
The problem of the meniscal suture instrument of chinese patent CN209252988U is that the orientation of the meniscus suture instrument is kept approximately the same as that of the meniscus suture instrument in the actual use process, after the implant fixing member is driven out or extracted from the rod, because the relative factors of the self weight and symmetry determine that the orientation of the implant fixing member changes in position during the suture instrument and suture extraction process because there is no necessary external factor, and the puncture diameter of the rod is much larger than the diameter of the implant fixing member itself, thereby causing the implant fixing member to be pulled out from the puncture hole of the meniscus along with the suture instrument rod and the suture during the extraction process, causing the implant fixing member to be failed to be blocked, thereby causing the first operation of the suture to be failed, and in this case, the puncture must be re-performed and the implant fixing member to be blocked smoothly.
How to design a novel meniscus stitching instrument and implant screens device that realizes effective screens is the utility model aims to solve the technical problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem in the background art and providing a novel meniscus stitching instrument implant clamping device. The utility model provides a pair of novel meniscus stitching instrument and implant screens device has solved first implant mounting and has had the problem that the screens became invalid, has guaranteed effective screens, and then has provided for the success of meniscus stitching the operation and has supported and guarantee.
The above technical purpose of the present invention is achieved by the following technical solutions:
a novel meniscus stitching instrument comprises a first implant fixing piece, a push rod and a puncture needle, wherein the push rod is used for pushing the first implant fixing piece;
first implant mounting has implant front end, implant rear end, is used for holding first through wires hole and the second through wires hole that the suture passed, the implant front end is the inclined plane structure, the implant rear end is asymmetric V-arrangement groove structure, first through wires hole and second through wires hole run through in the lateral wall of first implant mounting.
Based on the same invention concept, the utility model also provides a novel meniscus suture device implant screens device, including first implant mounting, the first implant mounting has implant front end, implant rear end, is used for holding first through wires hole and the second through wires hole that the suture passed, the implant front end is the inclined plane structure, the implant rear end is asymmetric V-arrangement groove structure, the first through wires hole and the second through wires hole run through the lateral wall of first implant mounting, locate in the hole of pjncture needle before the first implant mounting is implanted, the hole of pjncture needle is equipped with the push rod with the asymmetric V-arrangement groove looks adaptation of implant rear end;
after the first implant fixing piece is pushed out of the inner hole of the puncture needle by the push rod, the direction of the first implant fixing piece deflects.
The novel meniscus stitching instrument implant clamping device comprises an implant, wherein an angle formed by the inclined plane at the front end of the implant and the axial lead of the first implant fixing part is 45-50 degrees.
The novel clamping device for the meniscus suture device implant body is characterized in that an opening angle formed by the first groove wall and the second groove wall at the rear end of the implant body is 80-90 degrees.
According to the novel meniscus stitching instrument implant clamping device, the first groove wall and the second groove wall incline in opposite directions and are connected to form a groove bottom, and the width of the first groove wall is larger than that of the second groove wall.
According to the novel meniscus stitching instrument implant clamping device, the distance A from the center of the first threading hole to the central line of the first implant fixing piece is larger than the distance B from the center of the second threading hole to the central line of the first implant fixing piece.
The novel meniscus stitching instrument implant clamping device is characterized in that the length of the first implant fixing piece is greater than the diameter of the outer wall of the puncture needle.
According to the novel meniscus stitching instrument implant clamping device, the length of the first implant fixing piece is 4.5-5.5 mm, and the diameter of the outer wall of the puncture needle is 1-1.5 mm.
According to the novel meniscus stitching instrument implant clamping device, the first implant fixing piece is made of medical polyether-ether-ketone.
The implant clamping device of the novel meniscus stitching instrument comprises a first implant fixing piece and a second implant fixing piece, wherein the first implant fixing piece is cylindrical.
Compared with the prior art, the utility model has the advantages of it is following and beneficial effect:
1. the utility model provides a novel meniscus stitching instrument implant clamping device, the front end of the implant is of an inclined plane structure, the rear end of the implant is of an asymmetric V-shaped groove structure, and the inner hole of the puncture needle is provided with a push rod matched with the asymmetric V-shaped groove at the rear end of the implant; the implant front end plays the effect of guide and direction, the implant rear end plays the effect of boosting, at implant front end and implant rear end structure shape fit, and under the eccentric force effect of the thrust of push rod and the traction force combined action of suture, the deflection and the removal of position take place for first implant mounting, furthermore, the in-process of taking out is accomplished in the one side puncture of tearing portion, first implant mounting continues to take place further deflection because of the effect of the traction force of suture, thereby realize that first implant mounting is rotatory, effectual realization screens and then the smooth of assurance operation go on in the position of meniscus puncture hole, the emergence of the screens inefficacy condition has been stopped.
2. The utility model provides a pair of novel meniscus stitching instrument implant screens device, the length of first implant mounting is greater than the diameter of the outer wall of pjncture needle, has guaranteed that first implant mounting can not move back the hole of withdrawal pjncture needle, has further guaranteed the validity of screens.
3. The utility model provides a pair of novel meniscus stitching instrument implant screens device, first implant mounting material adopts medical grade polyether ether ketone, avoids original implant material among the prior art like stainless steel or titanium alloy material to the reaction of human production relevant rejection, fully guarantees security, the reliability of first implant mounting material, is favorable to the safety of postoperative to be recovered.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art, and it is obvious that the following description is only one embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a second prior art implant fixture;
FIG. 2 is a schematic view of a first implant mounting member of the present invention;
fig. 3 is a schematic view illustrating a first implant fixture release threshold state according to the present invention;
FIG. 4 is a schematic view of the first implant fixing member of the present invention in a released state;
fig. 5 is a schematic view showing a position of the first implant fixture of the present invention;
fig. 6 is an enlarged schematic effect diagram of the present invention.
1-a first implant fixture, 2-a push rod, 3-a second implant fixture, 4-a puncture needle, 5-a puncture hole, 6-a tear part, 101-an implant front end, 102-an implant rear end, 102 a-a first groove wall, 102 b-a second groove wall, 103-a first threading hole, 104-a second threading hole, and 105-a suture.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained without creative work by the ordinary skilled person in the art all belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
Example 1:
referring to fig. 2 to 6, a novel meniscus suture instrument includes a first implant fixing member 1, a push rod 2 for pushing the first implant fixing member 1, and a puncture needle 4, wherein the first implant fixing member 1 and the push rod 2 are disposed in an inner hole of the puncture needle 4, one end of a suture 105 passes through the inner hole of the puncture needle 4 to be connected with the first implant fixing member 1, and the other end of the suture 105 is connected with the puncture needle 4 through an auxiliary component (not shown in the figure); the first implant fixing member 1 is provided with an implant front end 101, an implant rear end 102, a first threading hole 103 and a second threading hole 104, wherein the first threading hole 103 and the second threading hole 104 are used for accommodating a suture 105 to pass through, the implant front end 101 is of an inclined plane structure, the implant rear end 102 is of an asymmetric V-shaped groove structure, and the first threading hole 103 and the second threading hole 104 penetrate through the side wall of the first implant fixing member 1.
The novel meniscus stitching instrument provided by the embodiment avoids the problem that the puncture needle 4 can follow the puncture needle 4 and the suture 105 to be separated from the puncture hole 5 of the meniscus together when the puncture needle 4 is pulled out, and the clamping is accurate, so that the success of the first operation of the stitching operation is ensured, the smooth clamping of the first implant fixing part 1 is not required to be realized through re-puncture, and the pain of a patient is also reduced.
Example 2:
referring to fig. 2 and 3, a novel meniscus suture device implant clamping device includes a first implant fixture 1, where the first implant fixture 1 has an implant front end 101, an implant rear end 102, a first threading hole 103 and a second threading hole 104 for receiving a suture 105 to pass through, the implant front end 101 is an inclined plane structure, the implant rear end 102 is an asymmetric V-shaped groove structure, and the first threading hole 103 and the second threading hole 104 penetrate through a side wall of the first implant fixture 1. The first implant fixing part 1 is arranged in an inner hole of a puncture needle 4 before being implanted, and the inner hole of the puncture needle 4 is provided with a push rod 2 matched with an asymmetric V-shaped groove at the rear end 102 of the implant; after the first implant fixing part 1 is pushed out of the inner hole of the puncture needle 4 by the push rod 2, the direction of the first implant fixing part is deflected.
Preferably, the angle formed by the inclined plane of the implant front end 101 and the axial line of the first implant fixture 1 is 45 ° to 50 ° in order to reduce the resistance during the pushing out of the first implant fixture 1 and to avoid interference with the predetermined deflection direction. Preferably, in this embodiment, the angle formed by the inclined plane of the implant front end 101 and the axial line of the first implant fixture 1 is 45 °.
Preferably, the opening angle formed by first slot wall 102a and second slot wall 102b of implant rear end 102 is 80-90 °. Preferably, in this embodiment, the opening angle formed by first slot wall 102a and second slot wall 102b of implant rear end 102 is 90 °.
Preferably, first slot wall 102a and second slot wall 102b incline toward each other and are connected to form a slot bottom, and the width of first slot wall 102a is greater than the width of second slot wall 102 b. The asymmetric design of the first slot wall 102a and the second slot wall 102b is to utilize the analysis of the comprehensive stress of the first implant fixture 1 to make the first implant fixture 1 reach the preset deflection direction in the pushed-out critical state, which is beneficial to ensure that the first implant fixture 1 deflects along the preset direction to realize accurate clamping.
Preferably, a distance a from the center of the first threading hole 103 to the center line of the first implant fixture 1 is greater than a distance B from the center of the second threading hole 104 to the center line of the first implant fixture 1. The center line of the first implant fixture 1 in this embodiment means a center line between a point of the most forward end of the first implant fixture 1 to a point of the most rearward end of the first implant fixture 1. The design of different hole pitches is that the analysis of comprehensive stress of the first implant fixing member 1 is utilized to make the front end of the first implant fixing member 1 preferentially make inclined deflection in the pushed-out critical state.
Preferably, the length of the first implant holder 1 is greater than the diameter of the outer wall of the puncture needle 4. Specifically, the length of the first implant fixing piece 1 is 4.5 mm-5.5 mm, and the diameter of the outer wall of the puncture needle 4 is 1-1.5 mm. Preferably, the length of the first implant fixture 1 is 4.5mm, and the diameter of the outer wall of the puncture needle 4 is 1.2 mm. Because the length of the first implant fixing member 1 is greater than the diameter of the outer wall of the puncture needle 4, after the first implant fixing member 1 is pushed out of the inner hole of the puncture needle 4 by the push rod 2, the first implant fixing member 1 cannot be pulled out of the puncture hole 5 or retracted into the inner hole of the puncture needle 4 in the process of pulling out the puncture needle 4.
In order to avoid the reaction of the prior implant material in the prior art to the generation of the related rejection to the human body, the stainless steel or titanium alloy material adopted in the prior art is abandoned, preferably, the first implant fixing part 1 material adopts medical grade polyether-ether-ketone, so that the safety and reliability of the first implant fixing part 1 material are further fully ensured, and the postoperative safety recovery is also ensured.
Preferably, the first implant fixture 1 has a cylindrical shape.
Referring to fig. 3 to 6, in the using process, when the puncture needle 4 is punctured and the needle point of the puncture needle 4 reaches the position where the first implant fixing member 1 needs to be pushed out, and the first implant fixing member 1 is pushed out of the inner hole of the puncture needle 4 by the push rod 2, because the cylindrical implant front end 101 is of an inclined plane structure and the implant rear end 102 is of an asymmetric V-groove structure, the implant front end 101 plays a role in guiding and guiding, and the implant rear end 102 plays a role in assisting in pushing under the pushing force of the push rod 2, in this embodiment, the width of the first groove wall 102a is greater than that of the second groove wall 102B, because the implant rear end 102 is of an asymmetric V-groove structure deviating from the axial center line of the implant front end 101, the distance a from the center of the first threading hole 103 to the center line of the first implant fixing member 1 is designed to be greater than the distance B from the center of the second threading hole 104 to the center line of the first implant fixing member 1, under the effect of eccentric force, the deflection and the removal of clockwise position take place for first implant mounting 1, arrow point indicates deflection direction and moving direction in the picture, under the effect of the comprehensive application of stitching the ware pjncture needle 4 and suture 105, in the in-process of taking out is accomplished in the puncture of one side of tearing 6, first implant mounting 1 continues to take place further deflection because of the effect of the traction force of suture 105, thereby realize being pushed the rotation of about 90 degrees angles of initial position with first implant mounting 1, effectual realization screens and then guarantee going on smoothly of operation in the position of meniscus puncture hole 5, the emergence of the screens inefficacy condition has been stopped.
The technical scheme of the utility model design make first implant mounting 1 can be according to expected accurate screens, avoided sewing up the condition of inefficacy because of the meniscus that the implant can not accurate screens cause, provide basic guarantee for the meniscus suture operation is successful.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The novel meniscus stitching instrument is characterized by comprising a first implant fixing piece (1), a push rod (2) and a puncture needle (4), wherein the push rod (2) is used for pushing the first implant fixing piece (1), the first implant fixing piece (1) and the push rod (2) are arranged in an inner hole of the puncture needle (4), and a suture (105) penetrates through the inner hole of the puncture needle (4) and is connected with the first implant fixing piece (1);
first implant mounting (1) have implant front end (101), implant rear end (102), be used for holding first through wires hole (103) and second through wires hole (104) that suture (105) passed, implant front end (101) are the inclined plane structure, implant rear end (102) are asymmetric V-arrangement groove structure, first through wires hole (103) and second through wires hole (104) run through in the lateral wall of first implant mounting (1).
2. The utility model provides a novel body screens is implanted to meniscus stitching instrument device, a serial communication port, including first implant mounting (1), first implant mounting (1) has implant front end (101), implant rear end (102), is used for holding first through wires hole (103) and second through wires hole (104) that suture (105) passed, implant front end (101) are the inclined plane structure, implant rear end (102) are asymmetric V-arrangement groove structure, first through wires hole (103) and second through wires hole (104) run through in the lateral wall of first implant mounting (1).
3. The novel meniscal stapler implant detent device of claim 2 wherein the angle formed by the bevel of the implant leading end (101) and the axial centerline of the first implant mount (1) is between 45 ° and 50 °.
4. The novel meniscal stapler implant detent device of claim 2, wherein the opening angle formed by first (102a) and second (102b) slot walls of the posterior implant end (102) is 80 ° to 90 °.
5. The novel meniscal stapler implant detent device of claim 4, wherein said first (102a) and second (102b) slot walls are sloped toward each other and joined to form a slot bottom, said first slot wall (102a) having a width greater than a width of said second slot wall (102 b).
6. The novel meniscus suture implant clamping device according to claim 2, wherein the distance A from the center of the first threading hole (103) to the center line of the first implant fixture (1) is greater than the distance B from the center of the second threading hole (104) to the center line of the first implant fixture (1).
7. The novel meniscal stapler implant detent device of claim 2 wherein the length of the first implant mount (1) is greater than the diameter of the outer wall of the puncture needle (4).
8. The novel meniscus stapler implant clamping device according to claim 7, wherein the length of the first implant fixture (1) is 4.5mm to 5.5mm, and the diameter of the outer wall of the puncture needle (4) is 1 mm to 1.5 mm.
9. The novel meniscus stapler implant clamping device according to any one of claims 2 to 8, wherein the first implant fixing part (1) is made of medical grade polyetheretherketone.
10. The novel meniscal stapler implant retention device according to any one of claims 2-8, wherein the first implant fixture (1) is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020551230.8U CN212438720U (en) | 2020-04-15 | 2020-04-15 | Novel meniscus stitching instrument and implant clamping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020551230.8U CN212438720U (en) | 2020-04-15 | 2020-04-15 | Novel meniscus stitching instrument and implant clamping device |
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| CN212438720U true CN212438720U (en) | 2021-02-02 |
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| CN202020551230.8U Active CN212438720U (en) | 2020-04-15 | 2020-04-15 | Novel meniscus stitching instrument and implant clamping device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114224411A (en) * | 2021-12-17 | 2022-03-25 | 青岛九远医疗科技有限公司 | Meniscus suturing instrument with good stability |
| CN116098664A (en) * | 2023-04-07 | 2023-05-12 | 杭州锐健马斯汀医疗器材有限公司 | Suture device and suture method |
-
2020
- 2020-04-15 CN CN202020551230.8U patent/CN212438720U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114224411A (en) * | 2021-12-17 | 2022-03-25 | 青岛九远医疗科技有限公司 | Meniscus suturing instrument with good stability |
| CN116098664A (en) * | 2023-04-07 | 2023-05-12 | 杭州锐健马斯汀医疗器材有限公司 | Suture device and suture method |
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