Nucleus chopping device
By designing a core splitter including a shell, pressing rod, slider, elastic member and coil, the problems of difficulty in operating and low success rate of the existing core splitter are solved, and a simple splitting of the core of the hard lens is achieved. and safe processing reduces the use of ultrasound energy and improves the safety and success rate of the surgery.
Patent Information
- Application Number
- CN202420496260.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-14
AI Technical Summary
The existing nucleotrips are difficult to operate and have a low success rate of nucleotripsy. Especially when dealing with rigid lens nucleotripsy, phacoemulsified nucleotripsy technology may lead to local tissue damage and complications.
A core splitter including a shell, a pressing rod, a slider, an elastic member and a coil is designed. Through the slide and an articulated structure, the coil is used to snag the lens core and push the slider to retract the coil and split it through the pressing rod. The core body is simple and labor-saving, and is suitable for hard core processing.
It improves the operation convenience and success rate of the nucleotrip device, reduces the difficulty of surgery, and reduces the use of ultrasound energy when dealing with rigid nuclei, and reduces the incidence of postoperative complications.
Smart Images
Figure CN222285747U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of surgical instruments, and in particular to a core splitter. Background Art
[0002] Cataract surgery requires the removal of the cloudy lens core, which is the lens cortex and lens nucleus. For some patients with severe cataracts, the lens nucleus is hard and difficult to remove by ultrasonic emulsification.
[0003] The treatment of the nucleus during cataract surgery is a very important part of the entire operation. Currently, the treatment of the nucleus is mainly divided into phacoemulsification nucleus chopping technology and pre-nucleus chopping technology, which are two completely different nucleus chopping technologies. Phacoemulsification nucleus chopping uses the phacoemulsification handle head and the nucleus chopping hook, and both hands are used to assist in chopping the lens nucleus, but this method requires more ultrasonic energy and may cause damage to local tissues. If you encounter a lens nucleus that is too hard, this method cannot be used. Pre-nucleus chopping technology is a technology that uses a pre-nucleus chopper to mechanically separate the nucleus, without any ultrasonic energy. However, the existing nucleus choppers are difficult to operate and have a low success rate in chopping.
[0004] Therefore, how to improve the convenience of the operation of the nucleus chopper, reduce the difficulty of surgical operation, and improve the success rate of nucleus chopping is a problem that technical personnel in this field need to solve. Utility Model Content
[0005] The purpose of the present application is to provide a core chopper to solve the problems of the existing core choppers being difficult to operate and having a low success rate in core chopping.
[0006] In order to solve the above technical problems, the present application provides a core chopper, comprising: a shell, a pressing rod, a slider, an elastic member and a coil;
[0007] A slideway is provided inside the shell, and the slider is slidably connected to the slideway. Two ends of the elastic member are respectively connected to the slider and the first end of the shell. The pressing rod includes a first connecting rod and a second connecting rod. The two ends of the first connecting rod are respectively hinged to the side wall of the shell and the first end of the second connecting rod. The side wall of the shell is provided with an opening, and the opening extends along the moving direction of the slider. The second end of the second connecting rod is connected to the slider through the opening. One end of the coil is connected to the slider. When the first connecting rod is forced to approach the shell, the second connecting rod pushes the slider to slide to squeeze the elastic member, so that the coil extending outside the shell retracts toward the second end of the shell.
[0008] Optionally, it includes: the shell includes a first shell, a second shell and a bottom cover, the two ends of the second shell are respectively detachably connected to the first shell and the bottom cover, the slide is arranged in the second shell, and the elastic member is respectively connected to the slider and the bottom cover.
[0009] Optionally, a groove is provided on the side wall of the second shell, the opening is provided on the bottom wall of the groove, and the pressing rod can be rotated to fit into the groove.
[0010] Optionally, a diameter of the first shell decreases from an end close to the second shell to an end away from the second shell, and a conduit is connected to the end of the first shell away from the second shell.
[0011] Optionally, two through holes are provided at the end of the catheter, and two ends of the metal wire are respectively connected to the slider through the two through holes to form the coil.
[0012] Optionally, the side wall of the first connecting rod is provided with an anti-slip portion, and the anti-slip portion is provided with anti-slip grooves.
[0013] Optionally, a locking structure is further included on the side wall of the shell, and when the locking structure abuts against the first connecting rod, the locking structure is used to lock the pressing rod into the groove.
[0014] Optionally, both ends of the metal wire are detachably connected to the slider via a screw buckle.
[0015] Optionally, the diameter of the catheter is 1.2-1.4 mm, and the length of the catheter is 8-10 mm.
[0016] Optionally, the coil is made of memory alloy.
[0017] The present application provides a nucleus chopping device, comprising: a shell, a pressing rod, a slider, an elastic member and a coil; a slideway is provided inside the shell, the slider is slidably connected to the slideway, the two ends of the elastic member are respectively connected to the slider and the first end of the shell, the pressing rod comprises a first connecting rod and a second connecting rod, the two ends of the first connecting rod are respectively hinged to the side wall of the shell and the first end of the second connecting rod, the side wall of the shell is provided with an opening, the opening extends along the moving direction of the slider, the second end of the second connecting rod is connected to the slider through the opening, one end of the coil is connected to the slider, when the first connecting rod is forced to approach the shell, the second connecting rod pushes the slider to slide to squeeze the elastic member, so that the coil extending outside the shell retracts toward the second end of the shell. During operation, the coil is used to cover the lens nucleus, and the first connecting rod only needs to be pressed in the direction close to the shell to push the slider to move to drive the coil to retract into the shell, thereby chopping the lens nucleus, and the first connecting rod is released, and the slider can push the coil out of the shell under the action of the restoring force of the elastic member, the operation is simple, relatively labor-saving, thereby improving the convenience of the operation of the nucleus chopping device, reducing the difficulty of surgical operation, and improving the success rate of chopping the nucleus.
[0018] In addition, when encountering a harder lens nucleus, a nucleus chopper is used to chop the lens nucleus into small pieces before removal to avoid making a larger incision. Compared with the phacoemulsification nucleus chopping technology, it can reduce the release of ultrasonic energy and reduce the incidence of postoperative complications such as corneal edema and corneal endothelial decompensation caused by excessive ultrasonic energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 A structural diagram of a first core chopper provided in an embodiment of the present application;
[0021] Figure 2 A structural diagram of a second core chopper provided in an embodiment of the present application;
[0022] Figure 3 A first side view of a core splitter provided in an embodiment of the present application;
[0023] Figure 4 A top view of a core splitter provided in an embodiment of the present application;
[0024] Figure 5 A second side view of a core splitter provided in an embodiment of the present application;
[0025] The figures are marked as follows: 1 is a shell, 2 is a pressing rod, 3 is a slider, 4 is an elastic member, 5 is a coil, 6 is a conduit, 7 is a buckle, 8 is a through hole, 9 is a pressure block, 101 is a first shell, 102 is a second shell, 103 is a bottom cover, 201 is a first connecting rod, and 202 is a second connecting rod. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0027] The core of the present application is to provide a nucleus chopper to improve the convenience of operation of the nucleus chopper, reduce the difficulty of surgical operation, and improve the success rate of nucleus chopping.
[0028] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0029] Figure 1 This is a structural diagram of the first core chopper provided in the embodiment of the present application. Figure 2 The structure diagram of the second core chopper provided in the embodiment of the present application is as follows: Figure 1 The elastic member 4 is in a natural state. Figure 2 The elastic member 4 is in a compressed state. Figure 1 and Figure 2 As shown, a core chopper comprises: a shell 1, a slider 3, an elastic member 4, a pressing rod 2 and a coil 5; a slideway is provided inside the shell 1, the slider 3 is slidably connected to the slideway, two ends of the elastic member 4 are respectively connected to the slider 3 and the first end of the shell 1, the pressing rod 2 comprises a first connecting rod 201 and a second connecting rod 202, two ends of the first connecting rod 201 are respectively hinged to the side wall of the shell 1 and the first end of the second connecting rod 202, an opening is provided on the side wall of the shell 1, the opening extends along the moving direction of the slider 3, the second end of the second connecting rod 202 is connected to the slider 3 through the opening, one end of the coil 5 is connected to the slider 3, when the first connecting rod 201 is forced to approach the shell 1, the second connecting rod 202 pushes the slider 3 to slide to squeeze the elastic member 4, so that the coil 5 extending outside the shell 1 retracts toward the second end of the shell 1.
[0030] The embodiment of the present application does not specifically limit the shape and material of the shell 1. It can be a pen-shaped shell to facilitate the operator's grasp and operation. Specifically, metal material can be used. A slide is provided in the shell 1, and the slide extends along the length direction of the shell 1. The slider 3 is slidably connected to the slide. The embodiment of the present application does not specifically limit the elastic member 4. Usually, a spring is selected. The spring is provided in the shell 1. The two ends of the spring are respectively connected to the shell 1 and the slider 3. The specific connection method is not specifically limited in the embodiment of the present application. The coil 5 in the embodiment of the present application is made of a memory alloy material, so that when the coil 5 is extended from the shell 1, it can automatically restore to a circular or elliptical shape, so as to facilitate the sheathing of the lens nucleus.
[0031] To better understand the present application, the following describes the method for using the core splitter. After the coil 5 is used to enclose the lens nucleus, the first connecting rod 201 is pressed by a finger, and the first connecting rod 201 moves toward the direction close to the housing 1, driving the second connecting rod 202 to push the slider 3 to squeeze the spring, and the slider 3 retracts the coil 5 toward the second end of the housing 1, and the coil 5 splits the lens nucleus. When the first connecting rod 201 is released, the slider 3 moves under the action of the spring restoring force to push the coil 5 out of the housing 1, that is, when the elastic member 4 is in a natural state, the coil 5 is extended outside the housing 1. The purpose of this arrangement is that when the coil 5 needs to be retracted to split the lens nucleus, only the first connecting rod 201 needs to be pressed by a finger. Compared with lifting the first connecting rod 201 in the direction away from the housing 1 to push the slider 3 to drive the coil 5 to retract to split the lens nucleus, the downward pressing method is more convenient for one-handed operation and more labor-saving.
[0032] The present application provides a nucleus chopper, comprising: a housing, a slider, an elastic member, a pressing rod and a coil; a slideway is provided inside the housing, the slider is slidably connected to the slideway, the two ends of the elastic member are respectively connected to the slider and the first end of the housing, the pressing rod comprises a first connecting rod and a second connecting rod, the two ends of the first connecting rod are respectively hinged to the side wall of the housing and the first end of the second connecting rod, the side wall of the housing is provided with an opening, the opening extends along the moving direction of the slider, the second end of the second connecting rod is connected to the slider through the opening, one end of the coil is connected to the slider, when the first connecting rod is forced to approach the housing, the second connecting rod pushes the slider to slide to squeeze the elastic member, so that the coil extending outside the housing retracts toward the second end of the housing. During operation, the coil is used to cover the lens nucleus, and the first connecting rod only needs to be pressed in the direction close to the housing to push the slider to move to drive the coil to retract into the housing, thereby chopping the lens nucleus, and the first connecting rod is released, and the slider can push the coil out of the housing under the action of the elastic member restoring force, the operation is simple, relatively labor-saving, thereby improving the convenience of the operation of the nucleus chopper, reducing the difficulty of surgical operation, and improving the success rate of chopping the nucleus.
[0033] In addition, when encountering a harder lens nucleus, a nucleus chopper is used to chop the lens nucleus into small pieces before removal to avoid making a larger incision. Compared with the phacoemulsification nucleus chopping technology, it can reduce the release of ultrasonic energy and reduce the incidence of postoperative complications such as corneal edema and corneal endothelial decompensation caused by excessive ultrasonic energy.
[0034] Based on the above embodiments, Figure 3 A first side view of a core chopper provided in an embodiment of the present application, such as Figure 3 As shown, the shell 1 of the embodiment of the present application includes a first shell 101, a second shell 102 and a bottom cover 103, the two ends of the second shell 102 are respectively detachably connected to the first shell 101 and the bottom cover 103, the slideway is arranged in the second shell 102, and the elastic member 4 is respectively connected to the slider 3 and the bottom cover 103.
[0035] The embodiment of the present application does not limit the specific manner of detachable connection. The second shell 102 and the first shell 101 can be connected in a snap-on manner. Specifically, at least two snaps 7 can be provided on the side wall of the first shell 101, and correspondingly, a slot matching the snaps 7 is provided on the side wall of the second shell 102, and the snap connection between the first shell 101 and the second shell 102 is achieved through the snaps 7 and the slots. The second shell 102 and the bottom cover 103 can be connected in a threaded manner, and the bottom cover 103 is used to seal the tail end of the second shell 102. The first shell 101, the second shell 102 and the bottom cover 103 in the embodiment of the present application are detachably connected, which is convenient for disassembling the shell 1, convenient for cleaning and disinfection, and can be used repeatedly.
[0036] Furthermore, Figure 4 A top view of a core splitter provided in an embodiment of the present application, such as Figure 4 As shown, the side wall of the second housing 102 is provided with a groove, the opening is provided at the bottom wall of the groove, and the pressing rod 2 can be rotated to fit into the groove. In the embodiment of the present application, the side wall of the second housing 102 is provided with a groove, which can provide an extreme position for pressing downward when the operator presses the first connecting rod 201.
[0037] Based on the above embodiments, Figure 3 As shown, in the embodiment of the present application, the diameter of the first shell 101 decreases from the end close to the second shell 102 to the end away from the second shell 102 , and the end of the first shell 101 away from the second shell 102 is connected to the conduit 6 .
[0038] The embodiment of the present application does not specifically limit the specifications of the catheter 6. The diameter of the catheter 6 can be 1.2-1.4 mm, and the length of the catheter 6 can be 8-10 mm. In the embodiment of the present application, the end of the first shell 101 connected to the catheter 6 is thinner, which can facilitate the operator to observe the position of the catheter 6; wherein the catheter 6 can be made of metal.
[0039] Furthermore, Figure 5 A second side view of a core chopper provided in an embodiment of the present application, as shown in FIG. Figure 5 As shown, two through holes 8 are provided at the end of the catheter 6, and the two ends of the metal wire are connected to the slider 3 through the two through holes 8 to form the coil 5. By providing two through holes 8 at the end of the catheter 6, the diameter of the two through holes 8 is just enough to pass one metal wire. Compared with providing one through hole 8 for the coil 5, that is, two metal wires to pass through, providing two through holes 8 will prevent the coil 5 from being excessively recovered into the catheter 6, which can effectively prevent the broken crystal nucleus from entering the catheter 6 and causing blockage.
[0040] There is no limitation on the connection mode between the two ends of the metal wire and the slider 3. The two ends of the metal wire and the slider 3 can be detachably connected by a spiral buckle. The detachable connection mode is convenient for replacing the metal wire. The coil can be replaced regularly if it is worn, reducing the overall replacement cost.
[0041] Based on the above embodiment, the side wall of the first connecting rod 201 of the embodiment of the present application is provided with an anti-skid portion, and the anti-skid portion is provided with an anti-skid pattern. The embodiment of the present application does not specifically limit the shape of the anti-skid pattern. By providing the anti-skid portion and the anti-skid pattern, the friction between the first connecting rod 201 and the finger can be increased to prevent the operator from slipping when pressing the first connecting rod 201.
[0042] Based on the above embodiments, the embodiments of the present application further include a locking structure disposed on the side wall of the housing 1 . When the locking structure abuts against the first connecting rod 201 , the locking structure is used to lock the pressing rod 2 into the groove.
[0043] The locking structure is not specifically limited in the present embodiment. The locking structure may be an elastic band provided on the housing 2. When the core splitter is not used, the first connecting rod 201 is pressed into the groove of the housing 1, and the elastic band is fixed around the first connecting rod 2021 to lock the first connecting rod 201 into the groove. Figures 1 to 4 As shown, the locking structure can also be a pressing block 9, which is slidably connected to the outer wall of the shell 1. When the core splitter is not in use, the first connecting rod 201 is pressed into the groove of the shell 1, and the pressing block 9 is pushed so that one end of the pressing block 9 abuts against the outer wall of the first connecting rod 201, thereby locking the first connecting rod 201 into the groove. Other locking structures that can press the first connecting rod 201 into the groove are not listed here one by one.
[0044] The present application provides a locking structure, so that when the core splitter is not in use, the pressing rod can be locked into the groove, thereby facilitating the storage of the core splitter.
[0045] The above is a detailed introduction to a core chopper provided by the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.
[0046] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.
Claims
1. A core splitter, characterized in that: include: A housing (1), a pressing rod (2), a slider (3), an elastic member (4) and a coil (5); A slideway is provided inside the shell (1), the slider (3) is slidably connected to the slideway, two ends of the elastic member (4) are respectively connected to the slider (3) and the first end of the shell (1), the pressing rod (2) comprises a first connecting rod (201) and a second connecting rod (202), the two ends of the first connecting rod (201) are respectively hinged to the side wall of the shell (1) and the first end of the second connecting rod (202), the side wall of the shell (1) is provided with an opening, the opening extends along the moving direction of the slider (3), the second end of the second connecting rod (202) is connected to the slider (3) through the opening, one end of the coil (5) is connected to the slider (3), when the first connecting rod (201) is forced to approach the shell (1), the second connecting rod (202) pushes the slider (3) to slide to squeeze the elastic member (4), so that the coil (5) extending outside the shell (1) retracts toward the second end of the shell (1).
2. The core chopper according to claim 1, characterized in that: include: The housing (1) comprises a first housing (101), a second housing (102) and a bottom cover (103); two ends of the second housing (102) are detachably connected to the first housing (101) and the bottom cover (103), respectively; the slideway is arranged in the second housing (102); and the elastic member (4) is respectively connected to the slider (3) and the bottom cover (103).
3. The core chopper according to claim 2, characterized in that: The side wall of the second shell (102) is provided with a groove, the opening is provided on the bottom wall of the groove, and the pressing rod (2) can be rotated to fit into the groove.
4. The core chopper according to claim 2, characterized in that: The diameter of the first shell (101) decreases from an end close to the second shell (102) to an end away from the second shell (102), and a conduit (6) is connected to the end of the first shell (101) away from the second shell (102).
5. The core chopper according to claim 4, characterized in that: Two through holes (8) are provided at the end of the conduit (6), and the two ends of the metal wire are respectively connected to the slider (3) through the two through holes (8) to form the coil (5).
6. The core chopper according to claim 1, characterized in that: The side wall of the first connecting rod (201) is provided with an anti-slip portion, and the anti-slip portion is provided with anti-slip grooves.
7. The core chopper according to claim 3, characterized in that: It also comprises a locking structure arranged on the side wall of the shell (1), and when the locking structure abuts against the first connecting rod (201), the locking structure is used to lock the pressing rod (2) into the groove.
8. The core chopper according to claim 5, characterized in that: The two ends of the metal wire are detachably connected to the slider (3) via a screw buckle.
9. The core chopper according to claim 4, characterized in that: The diameter of the catheter (6) is 1.2-1.4 mm, and the length of the catheter (6) is 8-10 mm.
10. The core splitter according to any one of claims 1 to 9, characterized in that: The coil (5) is made of memory alloy.