Medical wire cutter
By designing the movable rod and cutting component structure of the medical suture cutter, the problem of the difficulty in cutting sutures inside existing medical scissors is solved, achieving a simple and efficient suture cutting effect, suitable for small surgical sites such as rotator cuff repair surgery.
Patent Information
- Application Number
- CN202422757342.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-11-13
AI Technical Summary
The current medical scissors are difficult to use for cutting sutures inside the body, which affects the operation time and efficiency.
A medical suture cutter was designed, comprising a movable rod, a cannula, and a cutting component. The cutting component has a cutting head and a cutting blade, which are movably connected to the movable rod. The cutting action is achieved by sliding and rotating within the cannula, and the grip component facilitates operation.
It improves the ease and efficiency of internal suture cutting, reduces surgical time, and meets the needs of small surgical sites.
Smart Images
Figure CN223845700U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field, specifically, relate to a medical wire cutting forceps. BACKGROUND
[0002] With the vigorous development of orthopedic sports medicine, rotator cuff repair surgery is paid more and more attention and applied because of its significant effect, and in the process of rotator cuff repair surgery, the damaged tendon and ligament usually need to be sutured.
[0003] In the prior art, after suture in vivo, other instruments are needed to thread and knot, and after knotting, the excess thread end is cut off and taken out by scissors. However, the existing medical scissors are usually large, and it is difficult to operate to cut the thread extended into the body, which leads to a long operation time and easily affects the normal operation time. UTILITARY MODEL
[0004] The technical problem to be solved by the utility model is that the existing medical scissors are usually large, and it is difficult to operate to cut the thread extended into the body, which leads to a long operation time and easily affects the normal operation time.
[0005] To solve the above problems, the utility model provides the following technical scheme:
[0006] A medical wire cutting forceps, including movable rod, sleeve and shearing piece, the shearing piece includes shearing head and shearing knife, the shearing head is fixedly connected with one end of the sleeve, the shearing head is provided with shearing groove and movable through slot, one end of the movable through slot is communicated with the inside of the sleeve, the other end of the movable through slot is communicated with the shearing groove,
[0007] The movable rod is slidably connected in the inside of the sleeve, one end of the movable rod extends into the shearing groove through the movable through slot, and the shearing knife is arranged in the shearing groove and movably connected with the movable rod, and the cutting edge of the shearing knife is aligned with the slot of the shearing groove.
[0008] The medical wire cutting forceps provided by the utility model has the following beneficial effects, but is not limited to:
[0009] In use, the end of the medical wire cutting forceps with the cutting part is extended into the surgical site and the sutured wound, the movable rod is moved along the inside of the sleeve towards the end away from the cutting head, the cutting knife is rotated to make the cutting edge of the cutting knife and the slot of the cutting slot open, the excess wire after knotting is placed in the cutting slot between the cutting edge of the cutting knife and the slot of the cutting slot, the movable rod is moved along the inside of the sleeve towards the end close to the cutting head, the cutting edge of the cutting knife and the slot of the cutting slot cut the wire, the whole process is simple and convenient to operate, the shape of the cutting part is small, and the sleeve and the movable rod are arranged to extend the cutting part into the surgical site, thereby improving the cutting efficiency.
[0010] Preferably, the medical wire cutting forceps further comprise a handle part, the handle part comprises a fixed handle and a rotating handle, the rotating handle is rotationally connected with the fixed handle, and the end of the sleeve away from the cutting head is fixedly connected to the upper end of the fixed handle; the end of the movable rod away from the cutting part is movably connected with the rotating handle.
[0011] Preferably, the upper end of the fixed handle is provided with a movable slot downward, the upper end of the rotating handle is inserted into the movable slot and rotationally connected with the fixed handle.
[0012] The end of the movable rod away from the cutting knife extends into the movable slot and is movably connected with the end of the rotating handle extending into the movable slot.
[0013] Preferably, the medical wire cutting forceps further comprise a spring; the end of the movable rod movably connected with the rotating handle is provided with a limiting block, the spring is sleeved on the outside of the movable rod, and the spring is located between the limiting block and the end of the sleeve.
[0014] Preferably, the cutting knife is rotationally installed in the cutting slot through a first pin.
[0015] The end of the cutting knife away from the cutting slot is provided with a waist-shaped hole, the movable rod is provided with a second pin, and the second pin penetrates through the waist-shaped hole.
[0016] Preferably, the cutting slot is provided with a first groove perpendicular to the axis direction of the cutting head, the side wall of the cutting knife is provided with a second groove opposite to the first groove, and the first groove and the second groove form a wire slot.
[0017] Preferably, the end of the cutting head away from the sleeve is in a pointed end structure.
[0018] Preferably, the upper end outer wall of the rotating handle is provided with a groove, the fixed handle is provided with a rotating protrusion at a position opposite to the groove at the movable slot, and the rotating handle upper end is inserted into the movable slot and connected by a third pin to rotate, so that the rotating protrusion is arranged in the groove. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a whole structure schematic view of the medical wire cutting forceps of the embodiment of the present application.
[0020] Figure 2 It is a whole structure schematic view of the cutting member of the embodiment of the present application.
[0021] Figure 3 It is a whole cross section structure schematic view of the medical wire cutting forceps of the embodiment of the present application.
[0022] BRIEF DESCRIPTION OF DRAWINGS
[0023] 1 movable rod, 10 limiting block, 2 sleeve, 3 cutting member, 30 tip structure, 31 cutting head, 32 cutting knife, 33 cutting slot, 34 movable slot, 35 waist hole, 36 second pin, 37 first groove, 38 second groove, 39 first pin, 4 handle member, 41 fixed handle, 42 rotating handle, 43 movable slot, 44 groove, 45 rotating protrusion, 46 third pin, 5 spring. DETAILED DESCRIPTION
[0024] The embodiments of the present application will be further described in detail below with reference to the drawings and embodiments. The following embodiments are used to illustrate the present application, but cannot be used to limit the scope of the present application.
[0025] In the description of the present application, it should be understood that the terms "upper", "first pin", "front", "rear", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0026] It should be noted that in the coordinate system XYZ provided herein, the positive direction of the X axis represents the right direction, the negative direction of the X axis represents the left direction, the positive direction of the Y axis represents the front direction, the negative direction of the Y axis represents the rear direction, the positive direction of the Z axis represents the upward direction, and the negative direction of the Z axis represents the downward direction; the meanings of the Z axis, the X axis and the Y axis are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0027] Reference Figures 1-3The utility model provides a kind of medical line cutting pliers, including movable rod 1, sleeve 2 and cutting piece 3, the cutting piece 3 includes cutting head 31 and cutting knife 32, the cutting head 31 with the one end fixed connection of sleeve 2, cutting groove 33 and movable through slot 34 are provided on the cutting head 31, the movable through slot 34 one end with the inside of sleeve 2 is connected, the other end of movable through slot 34 with cutting groove 33 is communicated.
[0028] Movable rod 1 is slidably connected in the inside of sleeve 2, one end of movable rod 1 extends into cutting groove 33 by movable through slot 34, and cutting knife 32 is arranged in cutting groove 33 and is movably connected with movable rod 1, the cutting edge of cutting knife 32 is aligned with the slot of cutting groove 33.
[0029] In the embodiment, in use, first, the medical line cutting pliers with the cutting piece 3 one end extends into the wound that is well operated and has been sutured;Make movable rod 1 move along the inside of sleeve 2 towards the end away from cutting head 31, drive cutting knife 32 to rotate, so that the cutting edge of cutting knife 32 and the slot of cutting groove 33 are open;Then, the excess line rope after knot is placed in cutting groove 33, and is placed between the cutting edge of cutting knife 32 and the slot of cutting groove 33;After that, make movable rod 1 move along the inside of sleeve 2 towards the end close to cutting head 31, drive cutting knife 32 to close to cutting groove 33, the cutting edge of cutting knife 32 and the slot of cutting groove 33 cut the line rope, the whole process is relatively simple and convenient to operate;Wherein, the shape of cutting piece 3 is smaller, and the sleeve 2 and the setting of movable rod 1 facilitate the extension of cutting piece 3 into the operation site, to improve the cutting efficiency.
[0030] Reference Figure 1 Preferably, the medical line cutting pliers further include handle piece 4, the handle piece 4 includes fixed handle 41 and rotating handle 42, the rotating handle 42 is rotatably connected with the fixed handle 41, the end away from cutting head 31 of sleeve 2 is fixedly connected to the upper end of fixed handle 41;The end away from cutting knife 32 of movable rod 1 is movably connected with rotating handle 42.
[0031] Specifically, the upper end of fixed handle 41 and the main body of fixed handle 41 are obtuse angle, the end away from cutting head 31 of sleeve 2 is fixedly connected to the upper end of fixed handle 41, so that rotating handle 42 can pull movable rod 1 to move relative to sleeve 2 when rotating.
[0032] The rotating handle 42 is provided with a connecting slot, and the end of the movable rod 1 away from the cutting knife 32 is provided with a movable pin which is inserted into the connecting slot and can move in the connecting slot to achieve the movable connection of the movable rod 1 and the rotating handle 42. When the rotating handle 42 rotates relative to the fixed handle 41, the movable pin is used to move in the connecting slot to pull the movable rod 1 to move relative to the sleeve 2.
[0033] In the embodiment, when the lower end of the rotating handle 42 is pressed, the lower end of the rotating handle 42 is close to the fixed handle 41, the upper end of the rotating handle 42 moves away from the fixed handle 41, and the movable rod 1 is pushed by the rotating handle 42 to move towards the cutting part 3 to make the cutting knife 32 and the cutting head 31 in a closed state to facilitate the cutting of the wire. When the lower end of the rotating handle 42 is driven to move away from the fixed handle 41, the upper end of the rotating handle 42 is close to the fixed handle 41, the movable rod 1 is driven by the rotating handle 42 to move away from the cutting part 3, and the cutting knife 32 is driven to rotate, and the cutting knife 32 and the cutting head 31 are in an open state to facilitate the release of the cutting action. The arrangement of the fixed handle 41 and the rotating handle 42 of the handle part 4 facilitates the operation of medical staff, and the wire cutting can be realized by rotating the rotating handle 42 and the fixed handle 41, thereby improving the cutting efficiency.
[0034] Referring to Figure 3 Preferably, the upper end of the fixed handle 41 is provided with a movable slot 43 downward, the upper end of the rotating handle 42 is inserted into the movable slot 43 and is rotatably connected with the fixed handle 41, and the end of the movable rod 1 away from the cutting knife 32 extends into the movable slot 43 and is movably connected with the end of the rotating handle 42 extending into the movable slot 43.
[0035] Specifically, the movable slot 43 is communicated with the inside of the sleeve 2, and the movable rod 1 extends out of the sleeve 2 and extends into the movable slot 43.
[0036] In the embodiment, the movable slot 43 provides installation space for the connection of the movable rod 1 and the rotating handle 42, has a protection effect, and effectively prevents the problem of jamming caused by the foreign matter inserted into the sleeve 2 or the connection of the movable rod 1 and the rotating handle 42.
[0037] Referring to Figure 3Preferably, the medical scissors also comprises a spring 5; one end of the movable rod 1 is provided with a limiting block 10, and the spring 5 is sleeved on the outside of the movable rod 1 and located between the limiting block 10 and the end of the sleeve 2.
[0038] Specifically, the diameter of the spring 5 is smaller than the diameter of the limiting block 10 and the diameter of the sleeve 2, so that the spring 5 can abut against the limiting block 10 and the end of the sleeve 2.
[0039] In the embodiment, under normal conditions, the movable rod 1 is in a proper position in the sleeve 2 under the action of the spring 5, at this time, the movable rod 1 does not act on the cutting knife 32, the cutting knife 32 is in an open state with the cutting head 31, and the rotating handle 42 is in an open state relative to the fixed handle 41; when it is needed to cut the wire, the cutting part 3 is aligned with the wire, the lower end of the rotating handle 42 is pressed, the lower end of the rotating handle 42 is close to the fixed handle 41, the upper end of the rotating handle 42 moves away from the fixed handle 41, the movable rod 1 is pushed by the rotating handle 42 to move towards the cutting part 3, thereby compressing the spring 5, and the first pin 39, the second pin 36 and the waist-shaped hole 35 cooperate with each other to drive the cutting knife 32 to rotate, so that the cutting knife 32 is in a closed state with the cutting head 31, thereby facilitating the cutting of the wire. When the lower end of the rotating handle 42 is driven to move away from the fixed handle 41, the upper end of the rotating handle 42 is close to the fixed handle 41, the movable rod 1 is driven by the rotating handle 42 to move away from the cutting part 3, and the cutting knife 32 is driven to rotate under the action of the spring 5, so that the cutting knife 32 is in an open state with the cutting head 31, thereby facilitating the release of the cutting action and facilitating the next cutting operation.
[0040] In other embodiments, the spring 5 can also be other elastic members with deformation ability, which are arranged between the limiting block 10 and the sleeve 2 to drive the movable rod 1 and the cutting knife 32 to reset.
[0041] Referring to Figures 2-3 Preferably, the cutting knife 32 is rotatably installed in the cutting groove 33 through the first pin 39; one end of the cutting knife 32 away from the cutting groove 33 is provided with a waist-shaped hole 35, and the second pin 36 is arranged on the movable rod 1 and penetrates through the waist-shaped hole 35.
[0042] Specifically, the second pin 36 penetrates the waist-shaped hole 35 to achieve the movable connection of the movable rod 1 and the shearing cutter 32, and when the movable rod 1 moves away from the shearing cutter 32, the movable rod 1 is matched with the waist-shaped hole 35 and the second pin 36 to pull the shearing cutter 32 to rotate around the first pin 39 as the center.
[0043] In the embodiment, the cooperation among the first pin 39, the second pin 36 and the waist-shaped hole 35 facilitates the rotation of the shearing cutter 32 during the movement of the movable rod 1.
[0044] Referring to Figure 2 , preferably, the shearing groove 33 is provided with a first recess 37 perpendicular to the axis direction of the shearing head 31, and the side wall of the shearing cutter 32 is provided with a second recess 38 opposite to the first recess 37, and the first recess 37 and the second recess 38 form a wire groove.
[0045] Specifically, the excess wire is placed in the cutting edge of the shearing cutter 32, the groove of the shearing groove 33 and the wire groove before being sheared, that is, the excess wire is placed in the shearing cutter 32 and the shearing groove 33 in the shape of "L" to facilitate the collection of the cut-off wire end.
[0046] In the embodiment, the excess wire is placed in the cutting edge of the shearing cutter 32, the groove of the shearing groove 33 and the wire groove before being sheared, so as to be sheared; wherein the wire groove is arranged to limit the position of the wire to avoid the position deviation of the wire before being sheared, and the wire groove is used to place the cut-off wire end to avoid the cut-off wire end from being clamped in the gap.
[0047] Referring to Figure 2 , preferably, the end of the shearing head 31 away from the sleeve 2 is in the shape of a pointed end structure 30.
[0048] In the embodiment, the pointed end structure 30 is used to pierce the skin tissue to facilitate the suture treatment of the doctor.
[0049] Referring to Figure 1 , preferably, the upper end outer wall of the rotating handle 42 is provided with a recess 44, the fixed handle 41 is provided with a rotating protrusion 45 at the position opposite to the recess 44 at the movable groove 43, the upper end of the rotating handle 42 is inserted into the movable groove 43 and is connected by a third pin 46 to rotate, so that the rotating protrusion 45 is arranged in the recess 44.
[0050] In the embodiment, when the rotating handle 42 rotates, the rotating protrusion 45 rotates in the groove 44, and the groove 44 limits the rotating angle of the rotating protrusion 45, so as to prevent the rotating handle 42 from rotating too large angle and causing damage.
[0051] Although the utility model discloses as above, the protection scope of the utility model is not limited to this only. The person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will all fall into the protection scope of the utility model.
Claims
1. A medical suture cutter, characterized in that, The utility model provides a shearing device, including movable rod (1), sleeve (2) and shear (3), the shear (3) includes shear head (31) and shear cutter (32), shear head (31) is fixedly connected with one end of sleeve (2), is provided with shear groove (33) and movable through slot (34) on shear head (31), one end of movable through slot (34) is connected with the inside of sleeve (2), the other end of movable through slot (34) is communicated with shear groove (33), Movable rod (1) is slidably connected in the inside of sleeve (2), one end of movable rod (1) extends into shear groove (33) through movable through slot (34), and shear cutter (32) is arranged in shear groove (33) and is movably connected with movable rod (1), the cutting edge of shear cutter (32) is aligned with the slot of shear groove (33).
2. The medical scissors-clip applier of claim 1, wherein, It also includes a handle piece (4), the handle piece (4) includes a fixed handle (41) and a rotating handle (42), the rotating handle (42) is rotatably connected with the fixed handle (41), and the end of the sleeve (2) away from the shear head (31) is fixedly connected to the upper end of the fixed handle (41); the end of the movable rod (1) away from the shear cutter (32) is movably connected with the rotating handle (42).
3. The medical scissors-clip applier of claim 2, wherein, The upper end of the fixed handle (41) is provided with a movable slot (43) downward, and the upper end of the rotating handle (42) is inserted into the movable slot (43) and rotatably connected with the fixed handle (41); The end of the movable rod (1) away from the shear cutter (32) extends into the movable slot (43) and is movably connected with the end of the rotating handle (42) extending into the movable slot (43).
4. The medical scissors-clip applier of claim 3, wherein, It also includes a spring (5); the end of the movable rod (1) movably connected with the rotating handle (42) is provided with a limiting block (10), the spring (5) is sleeved on the outside of the movable rod (1), and the spring (5) is located between the limiting block (10) and the end of the sleeve (2).
5. The medical scissors-clip applier of claim 1, wherein, The shear cutter (32) is rotatably installed in the shear groove (33) through a first pin (39); The end of the shear cutter (32) away from the shear groove (33) is provided with a waist-shaped hole (35), and the movable rod (1) is provided with a second pin (36) penetrating through the waist-shaped hole (35).
6. The medical scissors-clip applier of claim 1, wherein, The shear groove (33) is provided with a first groove (37) perpendicular to the axis direction of the shear head (31), and the side wall of the shear cutter (32) is provided with a second groove (38) opposite to the first groove (37), and the first groove (37) and the second groove (38) form a wire slot.
7. The medical scissors-clip applier of claim 1, wherein, The end of the shear head (31) away from the sleeve (2) is a pointed end structure (30).
8. The medical scissors-clip applier of claim 3, wherein, The upper end outer wall of the rotating handle (42) is provided with a recess (44), the fixed handle (41) is provided with a rotating protrusion (45) at the position opposite to the recess (44) at the movable slot (43), the upper end of the rotating handle (42) is inserted into the movable slot (43) and is connected by a third pin (46) to rotate, so that the rotating protrusion (45) is arranged in the recess (44).