Disposable titanium nail conveying assembly system and suspension device

Abstract

The invention discloses a disposable titanium nail conveying assembly system and a suspension device, and belongs to the technical field of medical equipment, the disposable titanium nail conveying assembly system comprises a support, an outer sleeve assembly, a puncture needle, a suture line, a front clamp, a cutter, a rear clamp, a push rod, a second actuating assembly, a first actuating assembly and a box shell; the triangular opening is formed in the end of the cutting edge, the narrow opening is formed in the middle of the cutting edge, when the cutter cuts a suture line, the suture line firstly passes through the narrow opening, two openings are formed in the side face of the suture line firstly, and therefore the suture line can be rapidly cut off when the suture line reaches the triangular opening. The device pays more attention to the feeling of the patient, the patient is prevented from being secondarily hurt, and meanwhile the positioning precision is improved; and the device can be more convenient for actual operation, the impact force caused by cutting the suture line is reduced, and each part is prevented from being damaged.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a disposable titanium nail delivery component system and a suspension device. Background Art

[0002] In order to treat the problem of prostate hyperplasia, mechanical devices convenient for surgery are designed to assist medical staff.

[0003] Chinese Patent Publication No. CN117731345B discloses a cassette, a handle, a suspension device and its operation method. However, in actual operation, operators find that when cutting the suture, it is easy to cause excessive impact force and the instrument vibration is also very large. Summary of the Invention

[0004] In view of the above problems in the prior art, the purpose of the present invention is to provide a disposable titanium nail delivery component system and a suspension device.

[0005] The present invention provides the following technical solutions:

[0006] A disposable titanium nail delivery component system includes a bracket, an outer sleeve tube component installed on the bracket, a puncture needle, a suture, a front clip, a cutter, a rear clip and a push rod movably placed in the outer sleeve tube component, an actuating component two and an actuating component one movably installed on the bracket, the puncture needle and the suture installed on the actuating component one, the front clip installed at the end of the suture, the suture and the front clip placed in the puncture needle, the push rod and the cutter installed on the actuating component two, the rear clip located in front of the push rod, the push rod and the rear clip placed in the cutter, wherein the inner side of the cutter above the rear clip is a cutting edge, that is, the position for cutting the suture, and a cassette housing covering the bracket and installed on the bracket; the end of the cutting edge is set as a triangular opening, and a narrow opening is provided in the middle of the cutting edge. When the cutter cuts the suture, the suture first passes through the narrow opening, so that two openings are formed on the side of the suture first, which is convenient for quickly cutting the suture when it reaches the triangular opening.

[0007] Specifically, the outer sleeve tube component includes a housing, a mirror tube channel bracket installed on the housing, a puncture needle positioning catheter snap-connected to the housing through side ears, and a cutter movably installed in the housing. The puncture needle is placed in the puncture needle positioning catheter, and a puncture needle positioning seat installed on the housing.

[0008] Specifically, the housing is divided into a component one and a component two. The component two is welded to the component one, and the component two uses an elastomer material with higher strength.

[0009] Specifically, the component two adopts 30Cr13.

[0010] Specifically, component two is provided with a square through hole, and a front limiting component and a rear limiting component are respectively provided at both ends of the square through hole. The front limiting component is used to support the cutter, and the rear limiting component is used to limit the movement of the rear clamp. Its limiting force can prevent the rear clamp from falling from the square through hole during the transportation of the device, but will not affect the normal operation of the rear clamp.

[0011] Specifically, one end of the second component is mounted on the puncture needle positioning seat, and the other end is configured as a square groove for movably engaging the cutter.

[0012] Specifically, the end of the rear limiting component is set as an inclined surface, and the rear limiting component is also provided with an arc-shaped back clamp.

[0013] Specifically, a protective cover is adhered to the outside of the second component, and the protective cover is made of a material similar to silicone.

[0014] Specifically, the expansion bracket is movably mounted on the outer sleeve assembly, and the expansion bracket is used to expand the viewing angle of the scope tube during operation.

[0015] Specifically, the expansion stent is divided into a middle part and side plates welded to both sides of the middle part, and the ends of the side plates are welded to component two, wherein the side plates are made of nickel-titanium memory alloy material.

[0016] Specifically, a protrusion is provided on the middle part, and the protrusion is movably engaged in a sliding groove provided on the puncture needle positioning seat.

[0017] Specifically, a guide channel is provided inside the puncture needle positioning seat, and a surface of the guide channel close to the end of the puncture needle positioning seat is set as an inclined surface.

[0018] Specifically, a plurality of locking piece storage grooves are provided on the other side of the cutter away from the cutting edge, which are used to movably lock the push rod inside the cutter.

[0019] Specifically, the rear clamp end portion is configured to be in an arc shape.

[0020] Specifically, the actuation assembly 1 includes a wire actuation assembly and a needle actuation assembly, the wire actuation assembly can drive the suture to move, and the needle actuation assembly can drive the puncture needle to move; the wire actuation assembly and the bracket are elastically connected through a spring 1.

[0021] Specifically, a first recovery point is provided at the wide part of the cutter, a second recovery point is provided at the narrow part of the cutter, and a corresponding groove is provided at the fixing block of the cutter.

[0022] Specifically, it also includes a safety component and a locking component; the safety component includes a safety start strip elastically mounted on the bracket through a second spring, and an entrance provided on the knob, wherein a limiting groove is provided at the entrance.

[0023] Specifically, the outer sleeve assembly is installed on the bracket in an inclined manner close to the handle.

[0024] Specifically, the outer shell is provided with a boss, and the bracket is provided with a through hole corresponding to the position of the boss. During installation, the outer shell is inserted into the bracket so that the boss corresponds to the through hole, and then stamping is carried out to press the boss into the through hole. Finally, a plug is covered outside the through hole.

[0025] A suspension device includes a handle and the disposable titanium nail delivery assembly system described above.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. In order to control the manufacturing cost of the entire device, the outer shell is made in two parts, and part two uses an elastomer material with higher strength. At the same time, a rear limit component is designed inside part two to limit the movement of the rear clip. The limiting force can prevent the rear clip from falling out of the square through hole during the transportation of the device, but will not affect the normal operation of the rear clip.

[0028] 2. The protective cover in contact with human tissue uses a material similar to silicone to avoid secondary tissue damage.

[0029] 3. An expansion bracket is designed to expand the viewing angle of the lens tube during operation, thereby assisting the surgical staff in accurately positioning the patient's injury. At the same time, a structure of a chute cooperating with the protrusion of nickel-titanium memory alloy is designed. When the internal tissue squeezes the side plate, the protrusion can move back and forth in the chute, facilitating the deformation of the side plate to adapt to the extrusion force, thereby avoiding secondary damage caused by forced insertion into the body.

[0030] 4. The original arc surface is changed to an inclined surface, reducing the puncture angle, thereby ensuring the accuracy of the operation position of the puncture needle 8 and more accurate positioning.

[0031] 5. The cutting edge is improved, thereby reducing the force required to cut the suture and avoiding excessive impact force.

[0032] 6. The design of the lock piece storage groove can lock the push rod inside the cutter while reducing the manufacturing cost.

[0033] 7. The end of the rear clip is set to an arc shape to avoid cutting the suture with the tip and causing surgical errors.

[0034] 8. During the surgical process, when the puncture needle passes through the tissue, part of the tissue will enter the inside of the needle tip. At this time, when the puncture needle moves, the implant component will be synchronously applied with a forward force. To avoid damage to the implant component caused by the interaction of the internal tissue under the force, the wire actuating component and the bracket are elastically connected by a spring to buffer the force of the movement of the implant component, thereby protecting the implant component from being damaged.

[0035] 9. During the operation process, the impact force generated instantaneously when the cutter is pushed and retracted is likely to cause the narrow part to bend and deform. To avoid bending and deformation, that is, to make the force on its fixed end more uniform, two recovery points are added at the end of the cutter.

[0036] 10. To avoid the need to use a large force to drive the torsion spring during actual operation, which may cause it to get stuck, this device replaces the torsion spring with spring two, which can better eject the insurance activation bar and is more convenient to operate.

[0037] 11. To prevent the end of the outer sleeve assembly away from the bracket from detaching from the endoscope when the endoscope is inserted, and the two cannot be closed, the outer sleeve assembly needs to be installed on the bracket inclined towards the handle direction.

[0038] 12. To ensure the overall aesthetics of the device, a blanking cover is installed at the joint of the housing and the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0040] Figure 1 is the three-dimensional view of the present invention;

[0041] Figure 2 is the structural schematic diagram of the end of the outer sleeve assembly in the present invention;

[0042] Figure 3 is the structural schematic diagram of the expansion bracket in the present invention;

[0043] Figure 4 is the structural schematic diagram of the guiding channel in the present invention;

[0044] Figure 5 is the structural schematic diagram of the cutting edge in the present invention;

[0045] Figure 6 is the structural schematic diagram of the rear clip and the cutter in the present invention;

[0046] Figure 7 is the structural schematic diagram of part one and part two in the present invention;

[0047] Figure 8 is the structural schematic diagram of the front limit component and the rear limit component in the present invention;

[0048] Figure 9 is the positional relationship diagram of the first actuating component, the second actuating component and the bracket in the present invention;

[0049] Figure 10 is the structural schematic diagram of the first recovery point and the second recovery point in the present invention;

[0050] Figure 11 It is a schematic diagram of the positional relationship between the insurance activation bar and the second spring in the present invention;

[0051] Figure 12 It is a schematic diagram of the installation direction of the outer sleeve assembly in the present invention;

[0052] Figure 13 It is a schematic diagram of the installation relationship between the outer shell and the bracket in the present invention;

[0053] Figure 14 It is a schematic diagram of the position of the blank cover in the present invention.

[0054] In the figure, the markings are: 1. Outer sleeve assembly; 2. Cutter; 3. Rear clamp; 4. Push rod; 5. Wire actuation assembly; 6. Suture; 7. Needle actuation assembly; 8. Puncture needle; 9. First spring; 10. Cutter fixing block; 11. Push rod fixing piece; 12. Second spring; 13. Insurance activation bar; 14. Casing shell; 15. Bracket; 16. Blank cover;

[0055] 101. Outer shell; 102. Protective cover; 103. Expansion bracket; 104. Slide groove; 105. Puncture needle positioning seat; 106. Guide channel; 107. Side ear;

[0056] 1011. Component one; 1012. Component two; 1013. Front limit component; 1014. Rear limit component; 1015. Inclined plane; 1016. Arc; 1017. Square groove; 1018. Boss;

[0057] 1031. Middle part; 1032. Side plate;

[0058] 201. Blade edge; 202. Narrow opening; 203. Triangular opening; 204. Lock piece storage groove; 205. Recovery point one; 206. Recovery point two;

[0059] 301. Arc-shaped. Detailed implementation manners

[0060] The present invention is an improvement on a casing, a handle, a suspension device and an operation method thereof disclosed in Chinese Patent Publication No. CN117731345B.

[0061] Embodiment 1

[0062] As Figures 1 to 10As shown in the figure, the present invention provides a disposable titanium staple delivery assembly system, which includes a bracket 15, an outer sleeve assembly 1 installed on the bracket 15, a puncture needle 8, a suture 6, a front clip, a cutter 2, a rear clip 3 and a push rod 4 movably placed inside the outer sleeve assembly 1, an actuator assembly two and an actuator assembly one movably installed on the bracket 15, the puncture needle 8 and the suture 6 installed on the actuator assembly one, the front clip installed at the end of the suture 6, the suture 6 and the front clip placed inside the puncture needle 8, the push rod 4 and the cutter 2 installed on the actuator assembly two, the rear clip 3 located in front of the push rod 4, the push rod 4 and the rear clip 3 placed inside the cutter 2, wherein the inner side of the cutter 2 above the rear clip 3 is a cutting edge 201, i.e., the position for cutting the suture 6, and a cassette housing 14 covering the outside of the bracket 15 and installed on the bracket 15.

[0063] The handle inside the suspension device cooperates with the disposable titanium staple delivery assembly system to operate the actuator assembly one and the actuator assembly two in sequence to complete the entire surgical process.

[0064] The actuator assembly one can drive the puncture needle 8 and the suture 6 to move, and the actuator assembly two can drive the push rod 4 and the cutter 2 to move. Therefore, when the handle is turned on for the first time, the actuator assembly one drives the puncture needle 8 and the suture 6 to move forward simultaneously, and the suture 6 drives the front clip to move forward; when the handle is turned on for the second time, the actuator assembly one drives the puncture needle 8 to retreat, and at the same time drives the suture 6 to tighten, thereby driving the front clip to unfold; when the handle is turned on for the third time, the actuator assembly two drives the push rod 4 and the cutter 2 to move simultaneously, the cutter 2 retreats, and the push rod 4 pushes the rear clip 3 to move forward, so that the rear clip 3 clamps the suture 6 while cutting the suture 6, and the rear clip 3 cooperates with the front clip to tighten the treatment part, thereby treating the problem of prostate hypertrophy.

[0065] The outer sleeve assembly 1 includes a housing 101, a lens tube channel bracket installed on the housing 101, a puncture needle positioning catheter clamped inside the housing 101 through a side ear 107, and a cutter 2 movably installed inside the housing 101. The puncture needle 8 is placed inside the puncture needle positioning catheter, and a puncture needle positioning seat 105 is installed on the housing 101.

[0066] Please refer to Figure 7 for key reference. The housing 101 is divided into a part one 1011 and a part two 1012, and the part two 1012 is welded to the part one 1011. Since the front end of the housing 101 is the main operation end of the surgery, the manufacturing precision and material requirements for the front end are higher than those for the rear end; in order to control the manufacturing cost of the entire device, the designer divides the housing 101 into two parts for manufacturing. The part two 1012 uses a higher-strength elastomer material, such as 30Cr13, but the part one 1011 can use ordinary stainless steel material.

[0067] Please refer to Figure 2 and 8, a square through hole is provided on component two 1012, and a front limiting component 1013 and a rear limiting component 1014 are respectively provided at both ends of the square through hole, the front limiting component 1013 is used to resist the cutter 2 to prevent the cutter 2 from being placed in the wrong position, and the rear limiting component 1014 is used to limit the movement of the rear clamp 3, and its limiting force can prevent the rear clamp 3 from falling from the square through hole during the transportation of the device, but the force of the actuating component two driving the push rod 4 to push the rear clamp 3 can push out the rear limiting component 1014, so the rear limiting component 1014 will not affect the normal operation of the rear clamp 3; at the same time, one end of component two 1012 is installed on the puncture needle positioning seat 105, and the other end is welded to component one 1011, and the other end of component two 1012 is set as a square groove 1017 for movably clamping the cutter 2.

[0068] The end of the rear limiting component 1014 is set as a slope 1015 to prevent the rear limiting component 1014 from being stuck in the rear clamp 3. At the same time, the rear limiting component 1014 is also provided with an arc 1016 to press against the rear clamp 3 to prevent the contact surface between the rear limiting component 1014 and the rear clamp 3 from being too small and the limiting force from being insufficient.

[0069] Please focus on Figure 2 Since component 2 1012 is commonly used to contact the inside of the prostate channel during surgery, the device is prone to scratch the tissue surface when it comes into contact with the tissue, which can easily lead to secondary damage to the tissue; therefore, a protective cover 102 is adhered to the outside of component 2 1012, and the protective cover 102 is made of a material similar to silicone to avoid secondary damage.

[0070] At the same time, the expansion bracket 103 is movably mounted on the outer sleeve assembly 1. The expansion bracket 103 is used to expand the viewing angle of the microscope tube during operation, thereby assisting the surgical staff to accurately locate the patient's injury; please refer to Figure 3 The expansion stent 103 is divided into a middle part 1031 and side plates 1032 welded on both sides of the middle part 1031. The ends of the side plates 1032 are welded to the second component 1012. The side plates 1032 are made of nickel-titanium memory alloy material and can be easily bent into Figure 3 As shown in the shape, due to the characteristics of its flexible material, the nickel-titanium memory alloy will not harm the tissue when the device is inserted into the body; a protrusion is provided on the middle part 1031, and the protrusion is movably connected in the slide groove 104 provided on the puncture needle positioning seat 105. In order to avoid harm to the human body when inserted into the human body, the structure of the slide groove 104 cooperating with the protrusion is designed. When the body tissue squeezes the side plate 1032, the protrusion can move back and forth in the slide groove 104, which facilitates the deformation of the side plate 1032 to adapt to the squeezing force, thereby avoiding secondary injury caused by forced insertion into the body.

[0071] Please focus on Figure 4, inside the puncture needle positioning seat 105, there is a guiding channel 106. One side of the guiding channel 106 close to the end of the puncture needle positioning seat 105 is set as an inclined plane, that is, it is changed from the original arc surface to an inclined plane. The above operation can reduce the puncture angle. When the puncture needle 8 passes through the guiding channel 106, the design of the inclined plane can increase the turning angle of the puncture needle 8, so as to ensure the accuracy of the operation position of the puncture needle 8 and make the positioning more accurate.

[0072] Please refer to Figure 5 , the end of the cutting edge 210 is set as a triangular opening 203, and a narrow opening 202 is provided in the middle part of the cutting edge 210. When the cutter 2 cuts the suture 6, the suture 6 first passes through the narrow opening 202, so that two openings are formed on the side of the suture 6 first, which is convenient for quickly cutting the suture 6 when the suture 6 reaches the triangular opening 203. In the prior art, the shape of the cutting edge makes it necessary to use a large force to cut the suture. This shape is likely to cause too large an impact force when cutting the suture, and the vibration of the instrument will also be very large. Therefore, the cutting edge 210 is improved to be as Figure 5 When in this shape, the force required to cut the suture 6 is reduced.

[0073] Furthermore, in the prior art, the cutting edge is generally formed by stamping process, while the cutting edge 210 of this invention is formed by grinding with a grinding tool, so that the cutting edge 210 is sharper.

[0074] Please refer to Figure 6 , on the other side of the cutter 2 away from the cutting edge 210, there are several sections of lock piece storage grooves 204 for movably locking the push rod 4 inside the cutter 2. Compared with the whole lock piece groove in the prior art, the design of this lock piece storage groove 204 can reduce the manufacturing cost.

[0075] At the same time, the end of the rear clip 3 is set as an arc shape 301 to avoid the tip cutting off the suture 6 and causing surgical mistakes.

[0076] Please refer to Figure 9 , the first actuation assembly includes a wire actuation assembly 5 and a needle actuation assembly 7. The wire actuation assembly 5 can drive the suture 6 to move, and the needle actuation assembly 7 can drive the puncture needle 8 to move.

[0077] The second actuation assembly includes a push rod fixing part 11 and a cutter fixing part 10. The end of the push rod 4 is installed on the push rod fixing part 11, and the end of the cutter 2 is installed on the cutter fixing part 10; the push rod fixing part 11 can drive the push rod 4 to move, and the cutter fixing part 10 can drive the cutter 2 to move.

[0078] When the puncture needle 8 is in operation, it needs to pass through the entire injured tissue to facilitate the subsequent implantation of the front clip and suture 6 inside the puncture needle 8. However, during the operation, when the puncture needle 8 passes through the tissue, some tissue will enter the inside of the needle tip. At this time, when the puncture needle 8 moves, the implant component will be synchronously applied with a forward force. To prevent the tissue that has entered the inside from damaging the implant component under the interaction of forces, the wire actuating assembly 5 and the bracket 15 are elastically connected by a first spring 9 to buffer the force of the movement of the implant component, thereby protecting the implant component from being damaged.

[0079] Please refer to Figure 10 , two recovery points are added to the end of the cutter 2. Since the width of the fixed end of the cutter 2 needs to change from wide to narrow, during the operation, the impact force generated instantaneously when the cutter 2 is pushed and recovered is likely to cause the narrow part to bend and deform. To avoid bending and deformation, that is, to make the force on its fixed end more uniform, a first recovery point 205 is provided at the wide part of the cutter 2, and a second recovery point 206 is provided at the narrow part of the cutter 2. The cutter fixing block 10 is provided with corresponding grooves to disperse the force.

[0080] The device in the first embodiment pays more attention to the patient's feelings, avoids secondary harm to the patient, and improves the positioning accuracy at the same time; and the device is more convenient for actual operation, reduces the impact force caused when cutting the suture, and avoids damage to each component.

[0081] Embodiment 2

[0082] Please refer to Figures 11 - 14 , a disposable titanium nail delivery component system disclosed in the second embodiment is the same as that in the first embodiment except for changing the insurance component and the installation method.

[0083] The disposable titanium nail delivery component system is also provided with an insurance component and a locking component. The locking component is used to lock the disposable titanium nail delivery component system on the handle, and at the same time can facilitate the replacement of the disposable titanium nail delivery component system. Since this device is used for surgical treatment, there is a great demand for hygiene; to ensure the hygiene of this device, and since only some components of the disposable titanium nail delivery component system contact the human body during the treatment process, each time after using the suspension device, only a new disposable titanium nail delivery component system needs to be replaced, so the locking component is designed; at the same time, to avoid the locking component being accidentally operated during the operation, resulting in the detachment of the disposable titanium nail delivery component system, the insurance component is designed. The insurance component is used to prevent the locking component from being opened accidentally when the disposable titanium nail delivery component system is locked on the handle.

[0084] Compared with the prior art, the torsion spring one in the insurance component of this device is replaced by a second spring 12.

[0085] Specifically, please refer to Figure 11 . The insurance component includes an insurance activation bar 13 elastically mounted on a bracket 15 by a second spring 12, and an inlet provided on the knob, with a limiting groove provided at the inlet. When the knob needs to be locked, the insurance activation bar can enter the limiting groove from the inlet under the action of force, and the knob is locked after rotating the knob. At this time, the knob is fixed under the action of force. When the knob needs to be opened, press the insurance activation bar 13, and the insurance activation bar 13 releases the force fixing the knob. At this time, rotate the inlet of the knob to the position of the insurance activation bar 13, release the insurance activation bar 13, and the insurance activation bar 13 pops out under the action of force, that is, the knob is in a free state.

[0086] Due to the characteristics of the torsion spring, in the prior art during actual operation, the operator needs to use a relatively large force to press the insurance activation bar. At this time, when the operator presses the insurance activation bar to the end, the torsion spring may get stuck, resulting in the operator having to find a way to pull out the insurance activation bar 13. To avoid the above operation problems, the torsion spring in this device is replaced with a second spring 12, which can better pop out the insurance activation bar 13 and the operation is more convenient.

[0087] Please refer to Figure 12 . When the outer sleeve assembly 1 is installed on the bracket 15, the outer sleeve assembly 1 needs to be installed inclined inward, that is, inclined towards the handle direction, or inclined towards the handle direction during manufacturing; otherwise, if the outer sleeve assembly 1 is vertically installed on the bracket 15, when the endoscope is inserted later, the end of the outer sleeve assembly 1 away from the bracket 15 will separate from the endoscope and the two cannot be closed. To facilitate subsequent installation and actual operation, the outer sleeve assembly 1 needs to be installed on the bracket 15 inclined towards the handle direction.

[0088] Furthermore, please refer to Figures 13 - 14 . A boss 1018 is provided on the housing 101, and a through hole is provided on the bracket 15 corresponding to the position of the boss 1018. During installation, the housing 101 is inserted into the bracket 15 so that the boss 1018 corresponds to the through hole, and then stamping is performed to punch the boss 1018 into the through hole. Finally, a blind cover 16 is covered outside the through hole to ensure the overall beauty of the device.

[0089] The device disclosed in the second embodiment optimizes the installation method of the internal components of the device and at the same time makes the operation of the operator more convenient.

[0090] Embodiment Three

[0091] A suspension device disclosed in this third embodiment includes a handle and the disposable titanium nail delivery assembly system disclosed in Embodiment One or Embodiment Two.

[0092] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A disposable titanium nail delivery assembly system, comprising a bracket, an outer sleeve assembly mounted on the bracket, a puncture needle, a suture, a front clamp, a cutter, a rear clamp and a push rod movably placed in the outer sleeve assembly, an actuating assembly 2 and an actuating assembly 1 movably mounted on the bracket, a puncture needle and a suture mounted on the actuating assembly 1, a front clamp mounted at the end of the suture, the suture and the front clamp placed in the puncture needle, a push rod and a cutter mounted on the actuating assembly 2, a rear clamp located in front of the push rod, the push rod and the rear clamp placed in the cutter, wherein the inner side of the cutter located above the rear clamp is a cutting edge, i.e., a position for cutting the suture, and a cassette housing covered outside the bracket and mounted on the bracket; It is characterized in that The blade end is also provided with a triangular opening, and the middle part of the blade is provided with a narrow opening. When the cutter cuts the suture, the suture first passes through the narrow opening, so that two openings are first opened on the side of the suture, thereby facilitating the rapid cutting of the suture when the suture reaches the triangular opening.

2. A disposable titanium nail delivery assembly system according to claim 1, characterized in that: The outer sleeve assembly includes a shell, a mirror tube channel bracket installed on the shell, a puncture needle positioning catheter connected to the shell through a side ear, and a cutter movably installed in the shell. The puncture needle is placed in the puncture needle positioning catheter and a puncture needle positioning seat installed on the shell.

3. A disposable titanium nail delivery assembly system according to claim 2, characterized in that: The shell is divided into a component one and a component two. The component two is connected to the component one by welding. The component two uses an elastic material with high strength.

4. A disposable titanium nail delivery assembly system according to claim 3, characterized in that: Part 2 is made of 30Cr13.

5. A disposable titanium nail delivery assembly system according to claim 3, characterized in that: A square through hole is provided on component two, and a front limit component and a rear limit component are respectively provided at both ends of the square through hole. The front limit component is used to support the cutter, and the rear limit component is used to limit the movement of the rear clamp. Its limiting force can prevent the rear clamp from falling from the square through hole during transportation of the device, but will not affect the normal operation of the rear clamp.

6. A disposable titanium nail delivery assembly system according to claim 3 or 5, characterized in that: One end of the second component is mounted on the puncture needle positioning seat, and the other end is arranged as a square groove for movably clamping the cutter.

7. A disposable titanium nail delivery assembly system according to claim 5, characterized in that: The end of the rear limiting component is arranged as an inclined surface, and the rear limiting component is also provided with an arc-shaped back clamp.

8. A disposable titanium nail delivery assembly system according to claim 3, characterized in that: A protective cover is adhered to the outside of the second component, and the protective cover is made of silicone.

9. A disposable titanium nail delivery assembly system according to claim 2, characterized in that: The expansion bracket is movably installed on the outer sleeve assembly, and the expansion bracket is used to expand the observation angle of the mirror tube during operation.

10. A disposable titanium nail delivery assembly system according to claim 9, characterized in that: The expansion stent is divided into a middle part and side plates welded on both sides of the middle part, and the ends of the side plates are welded to component two, wherein the side plates are made of nickel-titanium memory alloy material.

11. A disposable titanium nail delivery assembly system according to claim 10, characterized in that: A protrusion is arranged on the middle part, and the protrusion is movably clamped in a sliding groove arranged on the puncture needle positioning seat.

12. A disposable titanium nail delivery assembly system according to claim 2, characterized in that: A guide channel is arranged inside the puncture needle positioning seat, and a side of the guide channel close to the end of the puncture needle positioning seat is arranged as an inclined surface.

13. A disposable titanium nail delivery assembly system according to claim 1, characterized in that: A plurality of locking piece storage grooves are arranged on the other side of the cutter away from the cutting edge, which are used to movably lock the push rod inside the cutter.

14. A disposable titanium nail delivery assembly system according to claim 1, characterized in that: The rear clamp end portion is designed to be in an arc shape.

15. A disposable titanium nail delivery assembly system according to claim 1, characterized in that: The actuating assembly 1 includes a wire actuating assembly and a needle actuating assembly. The wire actuating assembly can drive the suture to move, and the needle actuating assembly can drive the puncture needle to move. The wire actuating assembly and the bracket are elastically connected through a spring 1.

16. A disposable titanium nail delivery assembly system according to claim 1, characterized in that: A first recovery point is arranged at the wide part of the cutter, a second recovery point is arranged at the narrow part of the cutter, and a corresponding groove is arranged at the fixing block of the cutter.

17. A disposable titanium nail delivery assembly system according to claim 1, characterized in that: It also includes a safety component and a locking component; the safety component includes a safety start strip elastically mounted on the bracket through a second spring, and an entrance provided on the knob, wherein a limiting groove is provided at the entrance.

18. A disposable titanium nail delivery assembly system according to claim 1, characterized in that: The outer sleeve assembly is installed on the bracket with an inclination close to the handle.

19. A disposable titanium nail delivery assembly system according to claim 2, characterized in that: The shell is provided with a boss, and the bracket is provided with a through hole at the position corresponding to the boss. During installation, the shell is inserted into the bracket so that the boss corresponds to the through hole, and then stamping is performed to stamp the boss into the through hole, and finally a cover is placed outside the through hole.

20. A hanger, characterized in that: It comprises a handle and a disposable titanium nail delivery component system as described in any one of claims 1-19.

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