CN114469217A - Meniscus sewing system and manufacturing method - Google Patents
Meniscus sewing system and manufacturing method Download PDFInfo
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- CN114469217A CN114469217A CN202210121343.8A CN202210121343A CN114469217A CN 114469217 A CN114469217 A CN 114469217A CN 202210121343 A CN202210121343 A CN 202210121343A CN 114469217 A CN114469217 A CN 114469217A
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- suture
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- guide groove
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0491—Sewing machines for surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
- A61B2017/0409—Instruments for applying suture anchors
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Abstract
The invention discloses a meniscus suturing system and a manufacturing method thereof, and the meniscus suturing system comprises an implant and an inserter, wherein the implant comprises a fixed block and a suture, and the inserter comprises a handle, a push button, a push needle, a puncture needle and a limit sleeve; wherein the handle is provided with a guide groove, and a first guide groove and a second guide groove are respectively arranged in the guide groove; the first push button and the second push button are respectively clamped in the first guide groove and the second guide groove together with the fixing block T1 and the fixing block T2, and 6 depth gears are designed in a matched mode with the limiting sleeve; the puncture needle is provided with three bending forms of upward bending, straight type and downward bending, the tissue is easy to puncture, scales are marked on the outside, and the puncture needle is matched with the limiting sleeve for use, so that convenience and safety of meniscus suture are improved. Therefore, the implant is pushed out by two times of triggering through a push rod triggering mechanism, and the convenience and the safety of meniscus suture depth limiting positioning are met by matching with the depth limiting function of the limiting sleeve; and the curled puncture needle structure meets the requirement of smaller puncture diameter, can realize low incisura and 1mm implant, and meets the precision of meniscus suture.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a meniscus sewing system and a manufacturing method thereof.
Background
The meniscus is a semilunar cartilage-like tissue located between the femur and tibia of the knee joint, and has very important functions for maintaining the normal physiological functions of the knee joint, including bearing dispersed stress, absorbing shock, increasing the contact area of the articular surface and the matching degree between the femur and the tibia, stabilizing the joint, nourishing and lubricating the joint, proprioception and the like.
Studies have shown that the rate of meniscal healing after suturing is significantly higher than in the non-sutured case. Therefore, for simple meniscal injuries, it is necessary to reconstruct a nearly intact meniscal fibrocartilage structure, stabilize and even restore the stability of the injured site, and it is important to promote meniscal healing and maintain normal knee joint function. The meniscus suturing technique is mainly divided into three types of 'outside-in', 'inside-out' and 'full joint-in'. Both of the first two suturing methods have the limitations of being time consuming and difficult to control. The 'full intra-articular' suturing mode is simple, safe and efficient, is suitable for suturing the body part, the posterior horn and the anterior horn of the meniscus, and is the first choice of the meniscus suturing technology at present.
The 'total intra-articular' suture needs a special suture product, and the suture instrument consists of three parts, namely two fixing plates, a suture which connects the two fixing plates and can be tightened and an inserter, wherein the fixing plates and the suture are fixed in a suture needle at the front end of the inserter. For this suturing technique, the most critical is the determination of the depth of the needle inserter on the inserter. The penetration depth of the needle needs to be strictly controlled, however, the penetration depth of the needle is difficult to judge from the arthroscope, the needle can be damaged to nerves and blood vessels behind the meniscus when the penetration depth is too deep, and the fixing plate can not be smoothly released to a specified position when the penetration depth is too shallow. In addition, the size requirements for the implant are quite stringent, and if the implant does not match the size of the meniscal lesion, excessive attempts to suture the meniscus will result in poor healing, or even complete non-healing, of the ruptured meniscus even after suturing.
Disclosure of Invention
The invention mainly aims to overcome the technical barriers in the prior art and provides a meniscus suturing system and a manufacturing method, wherein the meniscus suturing depth-limiting positioning system comprises a push rod percussion mechanism, a limiting sleeve, a positioning sleeve and a control mechanism, wherein the push rod percussion mechanism is used for percussion twice to push out an implant, and the convenience and the safety of meniscus suturing depth-limiting positioning are met; the curled puncture needle structure meets the requirement of smaller puncture diameter, can realize low incisura and 1mm implant, and meets the precision of meniscus suture.
The embodiment of the invention provides a meniscus sewing system and a manufacturing method, wherein the meniscus sewing system comprises: implant and inserter, implant includes fixed block and suture, and the inserter includes handle, propelling movement button, propelling movement needle, pjncture needle, stop collar, wherein:
the handle is provided with a guide groove, and a first guide groove and a second guide groove are respectively formed in the guide groove; the first push button and the second push button are clamped in the first guide groove and the second guide groove respectively; a fixing block T1 and a fixing block T2 are respectively filled in the first guide groove and the second guide groove, and a suture is connected between the fixing block T1 and the fixing block T2;
the limiting sleeve is an internal hollow mechanism and is sleeved outside the puncture needle, the tail part of the limiting tube is designed with 6 depth gears, the limiting sleeve is rotated to a corresponding mark and is installed into the head part of the handle, and the exposed length (namely the maximum puncture depth) of the head part of the puncture needle is adjusted;
the puncture needle rod head comprises an upward-bending form, a straight form and a downward-bending form, the head is provided with a puncture needle point, tissues are easy to puncture, the interior of the puncture needle rod is of a hollow structure, implants and a pushing needle are stored, scales are marked on the exterior of the puncture needle rod, the puncture needle rod is matched with a limiting sleeve for use, the puncture diameter is small, and low incisura and 1mm of implants can be realized.
Specifically, the implant assembly steps are: firstly, a suture line penetrates through a fixing block T2, then two ends of the suture line are squared to form a fixing coil, and redundant suture lines are cut off after the suture line is completely tightened; secondly, a suture is sequentially penetrated into the two small holes of the fixed block T1 and the fixed coil of the fixed block T2 with the fixed coil installed, and the distance between the tail ends of the suture is properly adjusted; thirdly, a slipknot is tied on one side, which is close to the head end of the suture, away from the fixed block T1, the head end of the suture which passes through the fixed wire ring of the fixed block T2 is inserted into the slipknot hole, then the slipknot is tightened, and the suture is fixed in the slipknot; fourthly, moving the adjusting fixing block T1 to a proper distance, adjusting the suture at two ends of the two small holes penetrating through the fixing block T1 to a proper distance, knotting and fixing, and then cutting off redundant suture; and fifthly, completing the assembly of the implant. Sixthly, the implant with the suture is arranged on a pushing needle of the inserter, and the assembly is completed.
Specifically, the head of the handle is connected with the puncture needle, and a guide groove is designed in the handle and used for triggering the pushing needle and pushing the implant; a boss is arranged at the part of the outside, which is in contact with the push button, so that a user has hand feeling feedback when triggering and pushing;
specifically, guide grooves are designed on the outer sides of the first push button and the second push button and matched with the handle, so that the first push button and the second push button can move on the handle conveniently; the inner side of the button is provided with a groove which is matched with the tail end of the pushing needle to transmit force to the pushing needle and further to the implant, and the implant is pushed and fired outside the inserter.
Specifically, the pushing needle head is designed to be flat, so that the pushing needle head can be conveniently matched with an implant fixing block; the tail part is provided with a convex block matched with the push button, so that the force of the push button is conveniently transmitted to the implant.
In particular, the grip portion of the handle has texturing or protrusions thereon to increase the surface coefficient of friction of the grip portion.
Specifically, the puncture needle is passed through the meniscus during suturing, and the puncture needle is pushed in place by pushing the entire handle; the T1 implant is then released by pushing the first push button on the handle; the puncture needle is passed through the meniscus and the T2 implant is released by pushing a second push button on the handle.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages: (1) the implant is pushed out by two times of percussion through a push rod percussion mechanism, and the convenience and the safety of meniscus suture depth-limiting positioning are met by matching with the depth-limiting function of the limiting sleeve; (2) the curled puncture needle structure meets the requirement of smaller puncture diameter, can realize low incisura and 1mm implant, and meets the precision of meniscus suture.
Drawings
FIG. 1 is a schematic overall view of a meniscus sewing system according to an embodiment of the present invention;
FIG. 2 is a schematic view of a handle in the system;
FIG. 3 is a schematic view of a needle in the system;
FIG. 4 is a schematic view of a stop collar in the system;
FIG. 5 is a schematic diagram of a push button in the system;
FIG. 6 is a schematic view of a push pin in the system;
fig. 7 is a schematic view of an implant threading procedure provided in accordance with an embodiment of the present invention.
Fig. 8 is a schematic diagram of an operation provided by an embodiment of the present invention.
Detailed Description
The invention is further described below by means of specific embodiments.
Referring to fig. 1 to 6, a meniscal suturing device according to an embodiment of the present invention includes: the semi-lunar plate suturing system comprises a whole schematic diagram, a handle schematic diagram, a puncture needle schematic diagram, a limiting sleeve schematic diagram, a push button schematic diagram and a specific operation schematic diagram.
The meniscal suturing system shown in fig. 1 is largely divided into two parts: implant and inserter, implant includes fixed block and suture, and the inserter includes handle, propelling movement button, propelling movement needle, pjncture needle, stop collar, wherein:
the handle is provided with a guide groove, and a first guide groove and a second guide groove are respectively arranged in the guide groove; the first push button and the second push button are clamped in the first guide groove and the second guide groove respectively; a fixing block T1 and a fixing block T2 are respectively filled in the first guide groove and the second guide groove, and a suture is connected between the fixing block T1 and the fixing block T2;
the implant assembly steps shown in fig. 7 are: firstly, a suture thread penetrates through a fixing block T2, then two ends of the suture thread are squared to form a fixing coil, and redundant suture thread is cut off after the suture thread is completely tightened; secondly, a suture is sequentially penetrated into the two small holes of the fixed block T1 and the fixed coil of the fixed block T2 with the fixed coil installed, and the distance between the tail ends of the suture is properly adjusted; thirdly, a slipknot is tied on one side, which is close to the head end of the suture, away from the fixed block T1, the head end of the suture which passes through the fixed wire ring of the fixed block T2 is inserted into the slipknot hole, then the slipknot is tightened, and the suture is fixed in the slipknot; fourthly, moving the adjusting fixing block T1 to a proper distance, adjusting the suture at two ends of the two small holes penetrating through the fixing block T1 to a proper distance, knotting and fixing, and then cutting off redundant suture; implant assembly is completed. Sixthly, the implant with the suture is arranged on a pushing needle of the inserter, and the assembly is completed.
The limiting sleeve shown in fig. 4 is an internal hollow mechanism, is matched with the head of the handle and is sleeved outside the puncture needle, the tail of the limiting tube is designed with 6 depth gears, the limiting tube is rotated to a corresponding mark and is installed into the head of the handle, and the exposure length (namely the maximum puncture depth) of the head of the puncture needle is adjusted; the puncture depth is limited, and the patient is protected.
The head of the puncture needle rod shown in fig. 3 has various bends, including three forms of upward bending, straight type and downward bending, the head has a puncture needle point which is easy to puncture tissues, an internal hollow structure which stores implants and a pushing needle, and scales are marked on the external part which is matched with a limit sleeve for use, so that a patient is protected; the puncture diameter is small, and low incisura and 1mm implant can be realized.
The head of the handle shown in fig. 2 is connected with a puncture needle, and a guide groove is designed in the head for triggering the pushing needle and pushing the implant; the contact part design of outside and propelling movement button has the boss, and the user triggers the propelling movement occasionally feels the feedback, increases user's maneuverability.
The outer sides of the first push button and the second push button shown in fig. 5 are designed with guide grooves, which are matched with the handle to facilitate moving on the handle; the inner side of the button is provided with a groove which is matched with the tail end of the pushing needle to transmit force to the pushing needle and further to the implant, and the implant is pushed and fired outside the inserter.
FIG. 6 shows a push tip segment flat design for facilitating engagement with an implant anchor; the tail part is provided with a convex block matched with the push button, so that the force of the push button is conveniently transmitted to the implant.
The grip portion of the handle shown in fig. 5 has texturing or protrusions thereon to increase the surface coefficient of friction of the grip portion.
FIG. 8 shows the procedure whereby the needle is pushed through the meniscus during suturing and the needle is pushed into place by pushing on the entire handle; the T1 implant is then released by pushing the first push button on the handle; the puncture needle is passed through the meniscus and the T2 implant is released by pushing a second push button on the handle.
(1) The method provided by the invention has the advantages that the implant is pushed out by two times of triggering through the push rod triggering mechanism, and the convenience and the safety of meniscus suture depth-limiting positioning are met by matching with the depth-limiting function of the limiting sleeve;
(2) the invention adopts a curled puncture needle structure to meet the requirement of smaller puncture diameter, can realize low incisura and 1mm implant, and meets the precision of meniscus suture.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (7)
1. A meniscus sewing system and a manufacturing method are characterized by comprising: implant and inserter, implant includes fixed block and suture, and the inserter includes handle, propelling movement button, propelling movement needle, pjncture needle, stop collar, wherein:
the handle is provided with a guide groove, and a first guide groove and a second guide groove are respectively formed in the guide groove; the first push button and the second push button are clamped in the first guide groove and the second guide groove respectively; a fixing block T1 and a fixing block T2 are respectively filled in the first guide groove and the second guide groove, and a suture is connected between the fixing block T1 and the fixing block T2;
the limiting sleeve is an internal hollow mechanism and is sleeved outside the puncture needle, the tail part of the limiting tube is designed with 6 depth gears, the limiting sleeve is rotated to a corresponding mark and is installed into the head part of the handle, and the exposed length (namely the maximum puncture depth) of the head part of the puncture needle is adjusted;
the puncture needle rod head comprises an upward-bending form, a straight form and a downward-bending form, the head is provided with a puncture needle point, tissues are easy to puncture, the interior of the puncture needle rod is of a hollow structure, implants and a pushing needle are stored, scales are marked on the exterior of the puncture needle rod, the puncture needle rod is matched with a limiting sleeve for use, the puncture diameter is small, and low incisura and 1mm of implants can be realized.
2. The meniscal suturing system and method of manufacture of claim 1 wherein the implant is comprised of two anchor blocks and sutures:
firstly, a suture thread penetrates through a fixing block T2, then two ends of the suture thread are squared to form a fixing coil, and redundant suture thread is cut off after the suture thread is completely tightened;
secondly, a suture is sequentially penetrated into the two small holes of the fixed block T1 and the fixed coil of the fixed block T2 with the fixed coil installed, and the distance between the tail ends of the suture is properly adjusted;
thirdly, a slipknot is tied on one side, which is close to the head end of the suture, away from the fixed block T1, the head end of the suture which passes through the fixed wire ring of the fixed block T2 is inserted into the slipknot hole, then the slipknot is tightened, and the suture is fixed in the slipknot;
fourthly, moving the adjusting fixing block T1 to a proper distance, adjusting the suture at two ends of the two small holes penetrating through the fixing block T1 to a proper distance, knotting and fixing, and then cutting off redundant suture;
implant assembly is completed.
Sixthly, the implant with the suture is arranged on a pushing needle of the inserter, and the assembly is completed.
3. The meniscus suturing system and the manufacturing method thereof according to claim 1, wherein the handle head is connected with a puncture needle, and a guide groove is designed inside the handle head for triggering the push needle and pushing the implant; the part design of outside and the contact of propelling movement button has the boss, and the user triggers the propelling movement occasionally and feels feedback.
4. The meniscus suturing system and the manufacturing method thereof according to claim 2, wherein the first push button and the second push button are provided with guide grooves at the outer sides thereof, and the guide grooves are matched with the handle to facilitate movement on the handle; the inner side of the button is provided with a groove which is matched with the tail end of the pushing needle to transmit force to the pushing needle and further to the implant, and the implant is pushed and fired outside the inserter.
5. The meniscus suturing system and method of manufacture of claim 1, wherein the push tip segment is flat and configured to engage the implant anchor; the tail part is provided with a convex block matched with the push button, so that the force of the push button is conveniently transmitted to the implant.
6. The meniscus sewing system and method of manufacture of claim 1, wherein the handle grip portion is textured or knurled to increase the surface coefficient of friction of the grip portion.
7. The meniscal suturing system and method of manufacture of claim 1 wherein the needle is inserted through the meniscus during suturing and is pushed into place by pushing the entire handle; the T1 implant is then released by pushing the first push button on the handle; the puncture needle is passed through the meniscus and the T2 implant is released by pushing a second push button on the handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210121343.8A CN114469217A (en) | 2022-02-09 | 2022-02-09 | Meniscus sewing system and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210121343.8A CN114469217A (en) | 2022-02-09 | 2022-02-09 | Meniscus sewing system and manufacturing method |
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| CN114469217A true CN114469217A (en) | 2022-05-13 |
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| CN202210121343.8A Pending CN114469217A (en) | 2022-02-09 | 2022-02-09 | Meniscus sewing system and manufacturing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114668437A (en) * | 2022-05-31 | 2022-06-28 | 杭州锐健马斯汀医疗器材有限公司 | Suturing device and suturing method |
| CN116687480A (en) * | 2022-12-05 | 2023-09-05 | 杭州锐健马斯汀医疗器材有限公司 | Meniscus suture instrument |
| WO2024032509A1 (en) * | 2022-08-11 | 2024-02-15 | 杭州锐健马斯汀医疗器材有限公司 | Implant and stapler |
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