Meniscal suture device

Abstract

The application provides a meniscus suturing device for releasing an implant to suture a meniscus, which comprises a holding part, a hollow needle arranged at the proximal end of the holding part, a depth-limiting tube sleeved outside the hollow needle and movably arranged on the holding part, and a locking part, wherein the locking part comprises a first locking member arranged on the depth-limiting tube and a second locking member arranged in the holding part; when the first locking member is forced to be separated from the second locking member, the depth-limiting tube can move towards or away from the proximal end of the hollow needle in the axial direction of the hollow needle, so as to adjust the depth of the depth-limiting tube; the depth-limiting tube in the application can realize the function of adjustable depth, so that the depth of the depth-limiting tube can be adjusted and controlled through the adjusting action during the operation, the cumbersome step of trimming the depth-limiting tube is avoided, and the operation complexity is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a meniscus suturing device. BACKGROUND

[0002] The meniscus suturing device is mainly used in the surgical treatment of human meniscus injury, for implanting implants into the meniscus injury position and suturing and repairing the meniscus injury position. The existing meniscus suturing device on the market has the method of first measuring the required implanting depth of the implant by using the appliance, then cutting the depth limiting tube to make the length of the depth limiting tube meet the requirements, and then controlling the release position of the implant to achieve good surgical effect. However, the surgical process needs to cut the depth limiting tube, which is relatively complicated, so there is an urgent need for a depth limiting tube that does not need to be cut and can realize depth adjustment. SUMMARY

[0003] The purpose of the present application is to provide a meniscus suturing device, which can realize the function of depth adjustment of the depth limiting tube. In this way, the depth of the depth limiting tube can be adjusted and controlled during the operation, avoiding the tedious step of cutting the depth limiting tube and reducing the degree of surgical complexity.

[0004] To achieve the above purpose, the present application provides a meniscus suturing device for releasing implants to suture meniscus, characterized in that it comprises a holding part, a hollow needle arranged at the proximal end of the holding part, a depth limiting tube sleeved outside the hollow needle and movably arranged on the holding part, and a locking part.

[0005] The locking part comprises a first locking member arranged on the depth limiting tube, and a second locking member arranged in the holding part. When the first locking member is forced to separate from the second locking member, the depth limiting tube can move towards or away from the proximal end of the hollow needle in the axial direction of the hollow needle to adjust the depth of the depth limiting tube.

[0006] Optionally, the first locking member comprises a fixed tube arranged outside the depth limiting tube, a limiting button connected with the fixed tube and movably arranged in a first through hole of the holding part, and a first protrusion arranged on the limiting button.

[0007] The second locking member comprises a mounting plate arranged on the holding part, and N recesses arranged on the mounting plate, N being a positive integer, wherein the N recesses are arranged along a first direction; preferably, the first direction is parallel to the axial direction of the hollow needle.

[0008] When the first protrusion is forced to separate from the recess, the movement of the depth limiting tube on the hollow needle can be adjusted.

[0009] Optionally, the device further comprises a vibration part, wherein the vibration part comprises a supporting plate arranged in the holding part, and a first protruding plate arranged on the supporting plate, and wherein the first protruding plate generates vibration when the first protruding plate rubs against the first protruding plate.

[0010] Optionally, the vibration part further comprises a second protruding plate arranged on the supporting plate, wherein a groove is formed between the first protruding plate and the second protruding plate, and wherein the groove is arranged along the first direction, and wherein when the first protruding plate is forced to move away from the groove, the first protruding plate rubs against the first protruding plate and enters the groove, and wherein the first protruding plate moves along the first direction in the groove.

[0011] Optionally, the hollow needle comprises a first outer tube, and a first inner tube arranged in the first outer tube and having a proximal end extending out of the first outer tube.

[0012] The depth-limiting tube comprises a second outer tube, and a second inner tube arranged in the second outer tube and having a proximal end hidden in the second outer tube.

[0013] The inner side wall of the second inner tube and the outer side wall of the first outer tube form a containing gap.

[0014] Optionally, the device further comprises a push needle seat movably arranged in the holding part, a push needle connected to the push needle seat and arranged in the hollow needle, and a first protruding part and a second protruding part.

[0015] The first protruding part is arranged on the side wall of the push needle seat, and the second protruding part is arranged on the inner wall of the holding part and is arranged to match the first protruding part, and wherein when the push needle seat is forced to move, the push needle pushes the implant to move in the hollow needle, and wherein when the first protruding part rubs against the second protruding part, vibration is generated.

[0016] Optionally, the device further comprises a third protruding part arranged on the side wall of the push needle seat, and wherein in the non-use state, the third protruding part, the first protruding part, and the second protruding part are arranged along the axial direction of the hollow needle.

[0017] Optionally, the device further comprises a blocking part arranged on the holding part to control the rubbing process of the third protruding part and the second protruding part.

[0018] The blocking part comprises a pressing plate arranged in the second through hole of the holding part, a clamping rod arranged on one side of the pressing plate in the holding part, and a blocking plate extending along the radial direction of the hollow needle from the side of the clamping rod, and wherein the blocking plate is provided with a moving groove for the push needle seat to pass through.

[0019] Optionally, the blocking part further comprises a limiting member, wherein the limiting member comprises a second protrusion fixed on the clamping rod, and a third protrusion arranged in the holding part, and the second protrusion rubs through the third protrusion to generate vibration.

[0020] Optionally, the limiting member further comprises a fourth protrusion, and the fourth protrusion and the third protrusion form a limiting groove matched with the second protrusion, and when the second protrusion rubs through the third protrusion and enters the limiting groove, the second protrusion is locked by the limiting groove.

[0021] Optionally, a guiding reset part is further arranged to guide the axial movement of the push needle base, wherein:

[0022] The guiding reset part comprises a guiding cylinder arranged in the holding part, a guiding rod arranged on the push needle base, and a guiding spring;

[0023] The guiding rod is movably inserted in the guiding cylinder, the guiding spring is wound outside the guiding rod, and two ends of the guiding spring are fixedly connected to the side wall of the guiding rod and the outer side wall of the guiding cylinder, respectively.

[0024] Optionally, a pushing part is further arranged, wherein the pushing part comprises a pushing slider slidingly arranged in a sliding hole of the holding part, and one end of the pushing slider in the holding part is connected to the push needle base, and the pushing slider is pushed to drive the movement of the push needle base in the holding part.

[0025] Optionally, a first marking part is arranged on the pushing slider, and M second marking parts matched with the first marking part are arranged on the holding part, and M is a positive integer.

[0026] Optionally, the first marking part is a first scale line, and the second marking part is a second scale line.

[0027] Optionally, the first marking part comprises an indicating rod, an indicating spring, and an indicating sliding slot arranged on the pushing slider, wherein:

[0028] The indicating rod is movably arranged in the indicating sliding slot, one end of the indicating spring is fixedly arranged on the side wall of the indicating sliding slot, and the other end of the indicating spring is fixedly connected to one end of the indicating rod in the indicating sliding slot.

[0029] The second marking part is a scale groove.

[0030] When the pushing slider is forced to move with the indicating rod to be opposite to the indicating sliding slot, the indicating spring pushes the indicating rod into the indicating sliding slot to realize indication and locking.

[0031] The beneficial effects of the present application are as follows:

[0032] The present application sets the depth limiting pipe activity on the holding part, and sets the locking part with the first locking piece and the second locking piece, and the first locking piece is forced to separate from the second locking piece to realize the unlocking process, so as to adjust the position of the depth limiting pipe relative to the holding part, so as to achieve the depth adjustment effect of the depth limiting pipe; and the locking part in the present application has reasonable structure design, and after the first locking piece is removed, the first locking piece can realize self-resetting and contact with the second locking piece to self-lock the depth limiting pipe after depth adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a partial explosion structure schematic diagram of one embodiment of the present application;

[0034] Figure 2 It is a structure schematic diagram of the first locking piece in the present application;

[0035] Figure 3 It is an enlarged schematic diagram of A structure in the present application; Figure 1

[0036] Figure 4 It is a structure schematic diagram of the vibration part in the present application;

[0037] Figure 5 It is a cross-sectional structure schematic diagram of the hollow needle and the depth limiting pipe combination in the present application;

[0038] Figure 6 It is a cross-sectional structure schematic diagram of another embodiment of the present application;

[0039] Figure 7 It is a bottom structure schematic diagram of the needle seat pushing part in the present application;

[0040] Figure 8 It is a partial three-dimensional structure schematic diagram of the holding part inside in the present application;

[0041] Figure 9 It is a structure schematic diagram of the blocking part in the present application;

[0042] Figure 10 It is a structure schematic diagram of the first embodiment of the limiting piece in the present application;

[0043] Figure 11 It is a structure schematic diagram of the second embodiment of the limiting piece in the present application;

[0044] Figure 12 It is a structure schematic diagram of the first embodiment of the guiding reset part in the present application;

[0045] Figure 13 It is a structure schematic diagram of the pushing part in the present application;​

[0046] Figure 14 Structure schematic view of first embodiment of first marking part and second marking part in the application;

[0047] Figure 15 Structure schematic view of second embodiment of first marking part and second marking part in the application.

[0048] Reference signs

[0049] 1, holding part; 101, upper cover plate; 102, lower cover plate;

[0050] 2, hollow needle; 21, first outer tube; 22, first inner tube;

[0051] 3, depth limiting tube; 31, second outer tube; 32, second inner tube; 33, gap;

[0052] 4, locking part; 41, first locking piece; 411, fixing tube; 412, limiting button; 413, first protrusion; 42, second locking piece; 421, mounting plate; 422, groove;

[0053] 5, vibration part; 51, supporting plate; 52, first protruding plate; 53, second protruding plate; 54, sliding groove;

[0054] 6, needle pushing base;

[0055] 7, needle pushing;

[0056] 8, first protruding part;

[0057] 9, second protruding part;

[0058] 10, third protruding part;

[0059] 11, blocking part; 111, pressing plate; 112, clamping rod; 113, blocking plate; 114, moving slot; 115, limiting piece; 1151, second protrusion; 1152, third protrusion; 1153, fourth protrusion; 1154, limiting slot; 12, guiding reset part; 121, guiding cylinder; 122, guiding rod; 123, guiding spring; 124, supporting slide rail; 125, supporting slide plate; 126, reset spring;

[0060] 13, pushing part; 131, pushing slide block;

[0061] 141, first marking part; 1411, indicating rod; 1412, indicating spring; 1413, indicating sliding groove; 142, second marking part; 1421, scale groove. DETAILED DESCRIPTION

[0062] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art. The terms "comprising" and similar expressions used herein mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, but do not exclude other elements or objects.

[0063] It is worth noting that the term "proximal" in the text refers to the end that is far from the operator and inserted into the patient's body; while the term "distal" refers to the end that is close to the operator and far from the patient's body.

[0064] To address the problems existing in the prior art, embodiments of the present invention provide a meniscus suture device; Figure 1 This is a schematic diagram of a partial explosion structure according to one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the first locking element in this invention; Figure 3 For the present invention Figure 1 A magnified schematic diagram of structure A in the image; refer to... Figures 1 to 3 As shown, the meniscus suture device includes a gripping part 1, a hollow needle 2 located at the proximal end of the gripping part 1, a depth limiting tube 3 sleeved on the hollow needle 2 and movably mounted on the gripping part 1, and a locking part 4. The locking part 4 includes a first locking member 41 located on the depth limiting tube 3 and a second locking member 42 located inside the gripping part 1. When the first locking member 41 is disengaged from the second locking member 42, the depth limiting tube 3 can move axially toward or away from the proximal end of the hollow needle 2 to adjust the depth of the depth limiting tube 3. The depth of the depth limiting tube 3 refers to the distance the depth limiting tube 3 is inserted into the gripping part 1, which can be further understood as the distance between the proximal end (i.e., the right end) of the depth limiting tube 3 and the proximal end (i.e., the right end) of the hollow needle 2.

[0065] The depth limiting tube 3 of the present invention can achieve the function of adjustable depth. In this way, during surgery, the depth of the depth limiting tube 3 can be adjusted and controlled, avoiding the cumbersome step of cutting the depth limiting tube 3 and reducing the complexity of the surgery.

[0066] In an embodiment, the number of the first locking member 41 and the second locking member 42 can be one or two, and when the number of the first locking member 41 and the second locking member 42 is two, the two first locking members 41 and the second locking members 42 are symmetrically arranged about the central axis of the hollow needle 2. Preferably, the number of the first locking member 41 and the second locking member 42 is two, which can achieve more convenient control.

[0067] In use, the first locking member 41 is pinched, and the left end of the first locking member 41 is rotated into the holding part 1 under the pinching force. In the process of rotation, the first locking member 41 is disengaged from the second locking member 42, so as to achieve unlocking, and the depth limiting tube 3 can move relative to the holding part 1. At this time, the depth limiting tube 3 is pushed or pulled to move along the axial direction of the hollow needle 2, so as to move the depth limiting tube 3 out of or into the holding part 1, thereby achieving depth adjustment of the depth limiting tube 3 relative to the holding part 1.

[0068] In an embodiment, the holding part 1 comprises an upper cover plate 101 and a lower cover plate 102 which can be buckled to each other, as shown in Figure 1

[0069] In an embodiment, the first locking member 41 can also be a magnet block, and the second locking member 42 can also be a magnet strip. The magnet block and the magnet strip are magnetically different from each other on the side away from each other, so that under the action of magnetic attraction, the magnet block and the magnet strip are attracted together when they are close to each other, thereby achieving locking of the current position of the depth limiting tube 3. When the magnet block and the magnet strip are disengaged, the depth limiting tube 3 can move on the hollow needle 2 to achieve depth adjustment.

[0070] In an embodiment, the first locking member 41 comprises a fixed tube 411 arranged outside the depth limiting tube 3, a limiting button 412 connected with the fixed tube 411 and movably arranged in a first through hole of the holding part 1, and a first protrusion 413 arranged on the limiting button 412; the second locking member 42 comprises a mounting plate 421 arranged on the holding part 1, and N recesses 422 arranged on the mounting plate 421, N being a positive integer, wherein the N recesses 422 are arranged along a first direction, and the first direction is parallel to the axial direction of the hollow needle 2. When the first protrusion 413 is forced to disengage from the recess 422, the depth limiting tube 3 can be adjusted to move on the hollow needle 2, as shown in Figure 2 and Figure 3 Preferably, N is selected to be more than three, so that the depth adjustment range of the depth limiting tube 3 is wider.

[0071] ​In the embodiment, the first protrusion 413 cooperates with the N recesses 422 to realize the locking and adjustment of the depth-limiting tube 3 relative to the holding part 1, specifically, when the first protrusion 413 is arranged in the recess 422, the depth-limiting tube 3 and the holding part 1 are locked and cannot be adjusted relative to each other; the left end of the limiting button 412 is pinched, the left end of the limiting button 412 moves into the holding part 1, the limiting button 412 rotates clockwise with the first protrusion 413, so that the first protrusion 413 moves out of the recess 422, and the unlocking process is realized, at this time, the depth of the depth-limiting tube 3 can be adjusted,

[0072] Preferably, the limiting button 412 is made of elastic material.

[0073] It is worth noting that the second locking member 42 can also be a rack structure, and the first protrusion 413 can be engaged with the tooth groove between two adjacent teeth.

[0074] Figure 4 The vibration part structure in the application is shown in the schematic view; Figure 4 As shown in the figure, the meniscus suture device further comprises a vibration part 5, wherein the vibration part 5 comprises a supporting plate 51 arranged in the holding part 1, and a first protruding plate 52 arranged on the supporting plate 51, and the first protrusion 413 rubs and slides on the first protruding plate 52 to generate vibration. When the medical staff pinches the limiting button 412, it is difficult to accurately know when the first protrusion 413 completely separates from the recess 422, so it is difficult to accurately determine the starting time of adjusting the depth of the depth-limiting tube 3, thereby reducing the use experience of the device; therefore, the vibration part 5 is arranged in the embodiment, which can accurately determine when the first protrusion 413 completely separates from the recess 422; specifically, in the process of pinching the limiting button 412, the first protrusion 413 rubs and slides on the first protruding plate 52 to generate vibration, through the generation of vibration, tactile vibration feeling can be provided, at the same time, sound can also be generated in the process of vibration, so that information feedback can be obtained through touch and hearing, and more accurate operation time can be provided for medical staff, so that the operation feeling of the device is better in use.

[0075] In one embodiment, the vibration unit 5 further includes a second protruding plate 53 disposed on the support plate 51, wherein a groove 54 is formed between the first protruding plate 52 and the second protruding plate 53 along the first direction (which can be understood as the groove 54 being horizontal). When the first protrusion 413 is dislodged from the groove 422 by force, it will rub against the first protruding plate 52 and enter the groove 54. When the depth of the depth limiting tube 3 is adjusted, the first protruding plate 52 will move along the groove 54. Figure 4 As shown. Because the limiting button 412 is elastic, it will reset itself when the pinching force is lost. Therefore, a large pinching force is required throughout the adjustment of the depth limiting tube 3, which is inconvenient for medical staff to perform other operations. At the same time, during the depth adjustment of the depth limiting tube 3, the direction of the pushing force is different, which will cause the depth limiting tube 3 to deflect relative to the hollow needle 2. This will cause the hollow needle 2 to come into contact with the depth limiting tube 3 during the movement. Since contact will cause wear, it will shorten the service life of the device. To this end, a second convex plate 53 is provided in this embodiment. The second convex plate 53 can play a blocking role. Specifically, after the first protrusion 413 rubs and slides past the first convex plate 52, it can stop moving under the blocking of the second convex plate 53. This can remind medical staff that the limiting button 412 has moved to the correct position, and on the other hand, prevent the movement of the limiting button 412 from exceeding its own elastic deformation and causing damage. Meanwhile, the groove 54 formed between the second protruding plate 53 and the first protruding plate 52 can play a guiding and limiting role. Specifically, by limiting the first protrusion 413 through the groove 54, the depth limiting tube 3 can be restricted to move only in the horizontal direction and will not deflect, thereby avoiding wear caused when the depth limiting tube 3 comes into contact with the hollow needle 2.

[0076] In existing crescent-shaped suture devices, an additional tube, namely a suture bundle tube, needs to be installed inside the depth-limiting tube 3 for storing and restraining excess suture. The depth-limiting tube 3 itself cannot bundle sutures and has no suture-binding function. The installation of this tube increases material production input and assembly difficulty. To solve the above problems, in one embodiment, the hollow needle 2 includes a first outer tube 21 and a first inner tube 22 inserted within the first outer tube 21 with its proximal end extending outside the first outer tube 21; the depth-limiting tube 3 includes a second outer tube 31 and a second inner tube 32 inserted within the second outer tube 31 with its proximal end hidden within the second outer tube 31; wherein, a receiving gap 33 is formed between the inner sidewall of the second inner tube 32 and the outer sidewall of the first outer tube 21, as shown in the figure. Figure 5As shown in the figure. In this embodiment, the cooperation of the depth limiting tube 3 and the hollow needle 2 can realize the function of the wire binding tube, that is, the depth limiting tube 3 itself has the function of the wire binding tube. Specifically, the inner side wall of the second inner tube 32 and the outer side wall of the first outer tube 21 form an accommodating gap 33, and the existence of the accommodating gap 33 can store and constrain the suture, so that the wire binding tube additionally arranged in the depth limiting tube 3 of the existing device is directly omitted, thereby reducing the production cost and the assembly difficulty of the device.

[0077] In the surgical process, it is difficult to determine whether the implant has been released. From the use of the existing products on the market, most people think that the implant has been completely released until it cannot be pushed. However, due to the blockage of human tissues or the unreasonable implant position, a large resistance is generated, causing the implant to be released and the hand to be pushed, and the actual implant has not been completely released. The medical staff believes that the implant has been released, so in this state, the implant has been completely released to perform subsequent surgical treatment, which may have the following risks. On the one hand, due to the incomplete release of the implant, the target site does not have the presence of the implant, resulting in the failure of the surgery, and on the other hand, the incomplete release of the implant will be suspended outside the release device, so that it is easy to hang to the tissue when the release device is retracted, which has certain safety hazards.

[0078] In order to solve the above problems, the present application provides an embodiment as follows: Figure 6 The cross-sectional structure diagram of another embodiment of the present application; Figure 7 The push pin base is shown in the structure diagram. Figure 8 The internal partial three-dimensional structure diagram of the holding part in the present application is shown in the figure Figures 6 to 8 As shown in the figure, the meniscus suture device further comprises a push pin base 6 movably arranged in the holding part 1, a push pin 7 connected with the push pin base 6 and penetratingly arranged in the hollow needle 2, and a first protruding part 8 and a second protruding part 9, wherein: the first protruding part 8 is arranged on the side wall of the push pin base 6, the second protruding part 9 is arranged on the inner wall of the holding part 1 and is matched with the first protruding part 8, and the push pin base 6 is forced to move the implant in the hollow needle 2 through the push pin 7, so as to rub and slide the first protruding part 8 through the second protruding part 9 to generate vibration.

[0079] In use, the implant is placed into the hollow needle 2, and then the push needle base 6 is pushed to the right, the right movement of the push needle base 6 pushes the implant in the hollow needle 2 out of the hollow needle 2 through the push needle 7; in the process of moving to the right, the push needle base 6 moves to the right with the first protruding part 8, when the first protruding part 8 rubs and slides through the second protruding part 9, the medical staff is prompted that the implant has been completely released out of the hollow needle 2, and the subsequent operation can be safely carried out. In the present application, when the first protruding part 8 rubs and slides through the second protruding part 9, a clear vibration feeling prompt and a crisp "click" sound prompt are generated, so that the tactile prompt and the auditory prompt are combined, the prompt mode from multiple angles of tactile prompt and auditory prompt is realized, and the medical staff can obtain prompt information from multiple channels to accurately judge whether the implant is completely released out of the hollow needle 2, so that the operation process is safe and smooth.

[0080] Preferably, the first protruding part 8 can be arranged on any one side of the push needle base 6 except the left and right two sides.

[0081] It is worth noting that when the meniscus suture device only contains the first protruding part 8 and the second protruding part 9, the device is used to release the implant once, that is, to play the role of injection, for example, the operation of injecting the filler into the bone hole.

[0082] In an embodiment, the first protruding part 8 and the second protruding part 9 can both be protrusions; the first protruding part 8 and the second protruding part 9 are arranged in a staggered manner at one end close to each other, so as to ensure that the first protruding part 8 and the second protruding part 9 can realize the rubbing and sliding process, and ensure that the device can realize the prompting function.

[0083] Preferably, in the direction perpendicular to the large face of the push needle base 6 (in the figure, it can be understood as the front-to-back direction), the cross section of the protrusion can be a semicircular structure or a triangular structure, of course, it is not limited to the semicircular structure and the triangular structure.

[0084] In an embodiment, the meniscus suture device further comprises a third protruding part 10 arranged on the side wall of the push needle base 6, in the unused state, the third protruding part 10, the first protruding part 8 and the second protruding part 9 are arranged in sequence along the axial direction of the hollow needle 2, as shown in Figure 7

[0085] ​When in use, the first protruding part 8 rubs through the second protruding part 9, forming a first multi-sensing prompt; the third protruding part 10 rubs through the second protruding part 9, forming a second multi-sensing prompt. Therefore, through the combination of the third protruding part 10, the first protruding part 8 and the second protruding part 9, the device can be used for the complete release prompt of two groups of implants, thus making the device more widely applicable, for example, when the device is used to suture a wound, two implants need to be released. Of course, in other examples, the present application can also be provided with a third multi-sensing prompt, or more multi-sensing prompts, to correspond to the complete release prompt of three groups of implants or more implants. The structure of the third protruding part 10 in the present application is consistent with that of the first protruding part 8, which will not be described here.

[0086] Figure 9 The structure diagram of the blocking part in the present application; refer to Figure 9 As shown in the figure, the meniscus suture device further comprises a blocking part 11 arranged on the holding part 1 to control the rubbing sliding process of the third protruding part 10 and the second protruding part 9, wherein the blocking part 11 comprises a pressing plate 111 arranged in the second through hole of the holding part 1, a clamping rod 112 arranged on one side of the pressing plate 111 in the holding part 1, and a blocking plate 113 extending along the radial direction of the hollow needle 2 from the side of the clamping rod 112, wherein the blocking plate 113 is provided with a moving groove 114 for the push needle seat 6 to pass through.

[0087] When the release of two implants is required, the device needs to contain the first protrusion 8, the second protrusion 9 and the third protrusion 10 at the same time. In use, the push needle holder 6 is pushed to the right, and the first implant is completely released outside the hollow needle 2 by the push needle 7; the push needle holder 6 cannot continue to move to the right due to the blocking of the blocking part 11; the pressing plate 111 is pressed to move into the holding part 1, and the movement of the pressing plate 111 will move the blocking part 11 through the clamping rod 112, so that the blocking part 11 is dislocated with the push needle holder 6, and the moving groove 114 is opposite to the push needle holder 6; when the push needle holder 6 is pushed to the right again, the push needle holder 6 continues to move to the right through the moving groove 114, so that the second implant is released outside the hollow needle 2; and the third protrusion 10 rubs through the second protrusion 9 to achieve the prompting effect, and the second protrusion 9 and the third protrusion 10 are prevented from being reset by the blocking of the push needle holder 6, so as to assist the medical staff to better distinguish the used and unused products. The structure of the third protrusion 10 and the second protrusion 9 is consistent, which will not be repeated here. The arrangement of the blocking part 11 can make the release process of the first implant and the second implant not affect each other and not interfere with each other, and at the same time, has the sequence.

[0088] Figure 10 It is a structure diagram of the first embodiment of the limiting part in the application; referring to Figure 10 The blocking part 11 also includes a limiting part 115, wherein the limiting part 115 includes a second protrusion 1151 fixed on the clamping rod 112, and a third protrusion 1152 arranged in the holding part 1, wherein the second protrusion 1151 rubs through the third protrusion 1152 to generate vibration. When the blocking part 11 is adjusted in the existing device, the adjustment position of the blocking part 11 cannot be accurately judged due to the blocked line of sight. In order to solve the above problem, the combination structure of the second protrusion 1151 and the third protrusion 1152 is arranged in the application, the second protrusion 1151 rubs through the third protrusion 1152 to generate vibration, the generation of vibration has obvious tactile prompt and crisp “click” sound prompt, so as to realize the combination of tactile prompt and auditory prompt, realize the prompt mode from multiple angles of tactile prompt and auditory prompt, so as to ensure that the medical staff can obtain prompt information from multiple channels, and accurately judge the adjustment position of the blocking part 11, that is, the accurate time when the push needle holder 6 continues to move to the right beyond the blocking part 11.

[0089] Figure 11 It is a structure diagram of the second embodiment of the limiting part in the application; referring to Figure 11As shown, the limiting piece 115 further comprises a fourth protrusion 1153, and a limiting groove 1154 is formed between the fourth protrusion 1153 and the third protrusion 1152, which matches the second protrusion 1151. When the second protrusion 1151 rubs and slides through the third protrusion 1152 into the limiting groove 1154, the second protrusion 1151 is locked by the limiting groove 1154. The limiting groove 1154 can limit the position of the second protrusion 1151, so that the second protrusion 1151 cannot be reset when the device is operated. Specifically, when the second protrusion 1151 rubs and slides through the third protrusion 1152 and enters the limiting groove 1154, on the one hand, the continuous movement of the second protrusion 1151 is prevented, so that the blocking part 11 cannot block the movement of the push needle seat 6 again; on the other hand, the reset of the second protrusion 1151 is effectively prevented from affecting the subsequent operation of the device.

[0090] Figure 12 It is a structural schematic diagram of the first embodiment of the guiding reset part in the application. Refer to Figure 12 As shown, the meniscus suturing device further comprises a guiding reset part 12 for guiding the axial movement of the push needle seat 6. The guiding reset part 12 comprises a guiding cylinder 121 arranged in the holding part 1, a guiding rod 122 arranged on the push needle seat 6, and a guiding spring 123. The guiding rod 122 is movably inserted into the guiding cylinder 121, and the guiding spring 123 is wound outside the guiding rod 122, and the two ends of the guiding spring 123 are fixedly connected to the side wall of the guiding rod 122 and the outer side wall of the guiding cylinder 121, respectively. In this embodiment, the guiding reset part 12 can limit the movement of the push needle seat 6 in the horizontal direction.

[0091] In an embodiment, the second embodiment of the guiding reset part is also provided. The guiding reset part 12 comprises a support slide rail 124 fixedly arranged on the push needle seat 6, and a support slide plate 125 fixedly arranged on the inner wall of the holding part 1. The support slide plate 125 is slidably arranged in the support slide rail 124, so as to guide the axial movement of the push needle seat 6. Refer to Figure 6 and Figure 7 As shown, the support slide plate 125 moves in the support slide rail 124, so as to move the push needle seat 6 in the horizontal direction. Preferably, the support slide rail 124 and the support slide plate 125 form a double-sided guiding track. The design of the double-sided guiding track ensures that the push needle seat 6 can move linearly in the horizontal direction along the track, reduces the friction of each part, and ensures the smoothness of the forward and backward movement of the push needle seat 6.

[0092] In an embodiment, the guiding reset part 12 further comprises a reset spring 126, two ends of the reset spring 126 are fixedly connected to the side wall of the push needle seat 6 and the inner side wall of the holding part 1 respectively. The reset spring 126 is arranged to pull the push needle seat 6 back to the original position when the push needle seat 6 loses the pushing force.

[0093] Figure 13 It is a schematic diagram of the pushing part structure in the application. Figure 13 As shown in the figure, the meniscus suturing device further comprises a pushing part 13, wherein the pushing part 13 comprises a pushing slider 131 slidingly arranged in a sliding hole of the holding part 1, one end of the pushing slider 131 in the holding part 1 is connected with the push needle seat 6, and the pushing slider 131 is pushed to drive the push needle seat 6 to move in the holding part 1.

[0094] Figure 14 It is a schematic diagram of the first embodiment of the first marking part and the second marking part in the application. Figure 14 As shown in the figure, the meniscus suturing device further comprises a first marking part 141 arranged on the pushing slider 131, and M second marking parts 142 arranged on the holding part 1 and matched with the first marking part 141, M is a positive integer. The first marking part 141 and the second marking part 142 are arranged to provide an indication from a visual angle, so as to cooperate with the sense of touch and the sense of hearing to form multi-angle information feedback, so that the medical staff can obtain more accurate information.

[0095] It is worth noting that M can be 1, 2 and 3, or more, when M is 1, the indicating part 14 can only be used for visual information feedback once, and so on. It can be seen that the number of M is the number of visual information feedback that the indicating part 14 can provide.

[0096] In an embodiment, the first marking part 141 is a first scale line, and the second marking part 142 is a second scale line. When the first scale line is aligned with the second scale line, visual feedback is achieved.

[0097] Figure 15 It is a schematic diagram of the second embodiment of the first marking part and the second marking part in the application. Figure 15As shown, the first marking part 141 comprises an indicating rod 1411, an indicating spring 1412 and an indicating slot 1413 formed on the pushing slider 131, wherein the indicating rod 1411 is movably arranged in the indicating slot 1413, one end of the indicating spring 1412 is fixedly arranged on the sidewall of the indicating slot 1413, and the other end of the indicating spring 1412 is fixedly connected to one end of the indicating rod 1411 located in the indicating slot 1413; the second marking part 142 is a scale slot 1421; when the pushing slider 131 is forced to move with the indicating rod 1411 to be opposite to the indicating slot 1413, the indicating spring 1412 pushes the indicating rod 1411 into the indicating slot 1413 to realize indication and locking. Compared with the first marking part and the second marking part of the first embodiment, the second marking part and the second marking part of the second embodiment can lock the current position under the premise of providing information feedback when reaching the corresponding position, so as to reduce the operation difficulty of the equipment and improve the operation experience of the equipment. Specifically, the movement of the pushing slider 131 will move the indicating rod 1411, when the indicating rod 1411 is aligned with the indicating slot 1413, the indicating rod 1411 is pushed by the indicating spring 1412 into the scale slot 1421, which can achieve the effect of prompting information feedback, and at the same time, since the indicating rod 1411 enters the scale slot 1421, under the action of not providing external force, the indicating rod 1411 is abutted by the indicating spring 1412 in the scale slot 1421, thereby locking the current position of the pushing slider 131, which is more conducive to the selection of used products and unused products by medical staff.

[0098] Although the embodiments of the present application have been described in detail above, it is obvious to those skilled in the art that various modifications and changes can be made to the embodiments. However, it should be understood that such modifications and changes are within the scope and spirit of the present application as described in the claims. Moreover, the present application described herein can have other embodiments and can be implemented or realized in various ways.

Claims

1. A meniscal suturing apparatus for deploying an implant to suture a meniscus, characterized by, The device comprises a holding part, a hollow needle arranged at the proximal end of the holding part, a depth-limiting tube arranged outside the hollow needle and movably arranged on the holding part, and a locking part, wherein The locking part comprises a first locking member arranged on the depth-limiting tube and a second locking member arranged in the holding part, when the first locking member is forced to be separated from the second locking member, the depth-limiting tube can move towards or away from the proximal end of the hollow needle in the axial direction of the hollow needle, so as to adjust the depth of the depth-limiting tube. Further comprising a push needle seat movably arranged in the holding part, a push needle connected with the push needle seat and arranged in the hollow needle, a first protruding part and a second protruding part, wherein The first protruding part is arranged on the side wall of the push needle seat, and the second protruding part is arranged on the inner wall of the holding part and matched with the first protruding part, when the push needle seat is forced to move, the push needle pushes the implant to move in the hollow needle, and the first protruding part rubs and slides through the second protruding part to generate vibration. Further comprising a third protruding part arranged on the side wall of the push needle seat, in the non-use state, the third protruding part, the first protruding part and the second protruding part are arranged in sequence along the axial direction of the hollow needle. Further comprising a blocking part arranged on the holding part, so as to control the rubbing and sliding process of the third protruding part and the second protruding part, wherein The blocking part comprises a pressing plate arranged in the second through hole of the holding part, a clamping rod arranged on one side of the pressing plate in the holding part, and a blocking plate extending along the radial direction of the hollow needle from the side of the clamping rod, wherein the blocking plate is provided with a moving groove for the push needle seat to pass through.

2. The apparatus of claim 1, wherein, The first locking member comprises a fixed tube arranged outside the depth-limiting tube, a limiting button movably arranged in the first through hole of the holding part and connected with the fixed tube, and a first protrusion arranged on the limiting button. The second locking member comprises a mounting plate arranged on the holding part, and N recesses arranged on the mounting plate, N is a positive integer, wherein the N recesses are arranged along the first direction.

3. The apparatus of claim 2, wherein, Further comprising a vibration part, wherein the vibration part comprises a supporting plate arranged in the holding part, and a first protruding plate arranged on the supporting plate, and the first protrusion rubs and slides through the first protruding plate to generate vibration.

4. The apparatus of claim 3, wherein, The vibration part further comprises a second protruding plate arranged on the supporting plate, wherein a groove cavity is formed between the first protruding plate and the second protruding plate, and the groove cavity is arranged along the first direction, when the first protrusion is forced to be separated from the recess, the first protrusion rubs and slides through the first protruding plate and enters the groove cavity, so as to move along the first direction in the groove cavity.

5. The apparatus of any one of claims 1 to 4, wherein, The hollow needle comprises a first outer tube, and a first inner tube arranged in the first outer tube and protruding out of the first outer tube at the proximal end; The depth-limiting tube comprises a second outer tube, and a second inner tube arranged in the second outer tube and hidden in the second outer tube at the proximal end; Wherein, a containing gap is formed between the inner side wall of the second inner tube and the outer side wall of the first outer tube.

6. The apparatus of claim 1, wherein, The blocking part further comprises a limiting member, wherein the limiting member comprises a second protrusion fixed on the clamping rod, and a third protrusion arranged in the holding part, and the second protrusion rubs through the third protrusion to generate vibration.

7. The apparatus of claim 6, wherein, The limiting member further comprises a fourth protrusion, and the fourth protrusion and the third protrusion form a limiting slot matched with the second protrusion, and when the second protrusion rubs through the third protrusion into the limiting slot, the second protrusion is locked by the limiting slot.

8. The apparatus of claim 7, wherein, Further comprising a guiding reset part to guide the axial movement of the push needle seat, wherein: The guiding reset part comprises a guiding cylinder arranged in the holding part, a guiding rod arranged on the push needle seat, and a guiding spring; Wherein the guiding rod is movably inserted in the guiding cylinder, the guiding spring is wound outside the guiding rod, and the two ends of the guiding spring are respectively fixedly connected to the side wall of the guiding rod and the outer side wall of the guiding cylinder.

9. The apparatus of claim 7, wherein, Further comprising a pushing part, wherein the pushing part comprises a pushing slider slidingly arranged in a sliding hole of the holding part, and one end of the pushing slider in the holding part is connected to the push needle seat, and the pushing slider is pushed to drive the push needle seat to move in the holding part.

10. The apparatus of claim 9, wherein, Further comprising a first marking part arranged on the pushing slider, and M second marking parts arranged on the holding part and matched with the first marking part, M is a positive integer.

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