A knot pusher

Abstract

The utility model relates to a kind of knot pushers, belong to medical instrument technical field, including shell, the shell bottom is fixedly connected with push rod, the push rod bottom is fixedly installed with knot push head, the knot push head bottom is equipped with knot push mouth, the shell bottom is hemispherical and is set, the push rod side wall is fixedly installed with surgical blade.The device is sleeved on the thumb, and the knot is pushed close to the knot to tie, and the knot is cut off after tying, which can push knot and cut thread, reduce the number of taking and replacement frequency of instruments, thereby improving the operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a knot pusher. Background Technology

[0002] Suturing surgery refers to the procedure of closing a wound by stitching it with needle and thread to promote wound healing and prevent infection. Knotting is one of the most basic techniques in suture surgery. The knot should generally be tied close to the skin. Since manual knotting cannot guarantee that the knot will always be tied close to the skin, a knot pusher is used for assistance.

[0003] Existing knot pushers are generally scissor-shaped or rod-shaped instruments. They need to be picked up and put down every time a knot is tied. Moreover, additional instruments are needed to cut the sutures after the knot is tied. Therefore, existing knot pushers have the problem of frequent picking up and changing instruments, which not only increases the complexity of the operation process, but also prolongs the operation time and reduces the efficiency of the operation. Utility Model Content

[0004] This utility model addresses the problems in the prior art by providing a knot pusher, which is achieved through the following technical solution:

[0005] A knot pusher includes a housing, a push rod fixedly connected to the bottom of the housing, a knot pusher head fixedly installed at the bottom of the push rod, a knot pusher opening at the bottom of the knot pusher head, the bottom of the housing being hemispherical, and a surgical blade fixedly installed on the side wall of the push rod.

[0006] The present invention is further configured such that: an inner shell is movably installed inside the outer shell, the outer wall of the inner shell is fitted to the inner wall of the outer shell, a cylindrical protective shell is fixedly installed at the bottom of the inner shell, gap holes are symmetrically opened on the front and rear sides of the protective shell, two arc-shaped through holes are opened at the bottom of the outer shell, the protective shell is movably installed in the through holes, and the protective shell encloses the push rod and the blade inside.

[0007] The present invention is further configured such that: a force-bearing ring is fixedly installed on the inner ring of the inner shell, the force-bearing ring is installed on the upper side wall of the inner shell, and a limit plate is fixedly installed on the bottom of the protective shell away from the blade.

[0008] The present invention is further configured such that: both the bottom of the outer shell and the bottom of the inner shell are provided with vent holes, and the vent holes on the outer shell and the inner shell are correspondingly provided.

[0009] In summary, the beneficial technical effects of this utility model are as follows:

[0010] This device is placed on the thumb, and the suture knot is pushed close to the knotting point to tie it. After the knot is tied, it is cut by the blade. It can both push the knot and cut the suture, reducing the number of times instruments need to be picked up and changed, thereby improving surgical efficiency. By setting an inner shell, the blade is first wrapped, and then exposed when in use, avoiding the blade from cutting medical staff or patients. With the force ring, when the thumb is removed, the inner shell moves upward, exposing the blade to cut the suture. The ventilation holes make it easy for medical staff to remove the device. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram used to illustrate the overall structure of this utility model.

[0012] Figure 2 This is a structural diagram used to demonstrate the usage status of the blade.

[0013] Figure 3 It is a bottom view used to display the casing and protective shell.

[0014] Figure 4 This is the main view used to display this utility model.

[0015] Reference numerals: 1. Shell; 2. Push rod; 3. Push joint head; 4. Push joint opening; 5. Blade; 6. Inner shell; 7. Protective shell; 8. Gap hole; 9. Through hole; 10. Force ring; 11. Limiting plate; 12. Vent hole. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] Example

[0018] like Figure 1-4 As shown, this utility model discloses a knot pusher, which includes a housing 1. A push rod 2 is fixedly connected to the bottom of the housing 1. A knot pusher head 3 is fixedly installed at the bottom of the push rod 2. A knot pusher opening 4 is provided at the bottom of the knot pusher head 3. The bottom of the housing 1 is hemispherical. A surgical blade 5 is fixedly installed on the side wall of the push rod 2.

[0019] An inner shell 6 is movably installed inside the outer shell 1. The outer wall of the inner shell 6 is fitted to the inner wall of the outer shell 1. A cylindrical protective shell 7 is fixedly installed at the bottom of the inner shell 6. The protective shell 7 has symmetrical gap holes 8 on its front and rear sides. The bottom of the outer shell 1 has two arc-shaped through holes 9. The protective shell 7 is movably installed in the through holes 9. The protective shell 7 encloses the push rod 2 and the blade 5.

[0020] A force-bearing ring 10 is fixedly installed on the inner ring of the inner shell 6. The force-bearing ring 10 is installed on the upper side wall of the inner shell 6. A limit plate 11 is fixedly installed on the bottom side of the protective shell 7 away from the blade 5.

[0021] Ventilation holes 12 are provided at the bottom of both the outer shell 1 and the inner shell 6, and the ventilation holes 12 on the outer shell 1 and the inner shell 6 are correspondingly arranged.

[0022] The push head 3, protective shell 7, force ring 10 and limiting plate 11 are all made of medical-grade silicone.

[0023] The specific implementation method of this example is as follows: When in use, the sleeve 1 is placed on the thumb, and the knot is pushed by the push-knot opening 4 of the push-knot head 3 until the knot is close to the skin to complete the knot. After the knot is tied, the thumb is removed from the sleeve 1, and when it is removed, the force ring 10 is pressed to move the inner shell 6 outward. The movement of the inner shell 6 causes the protective shell 7 to move, thereby exposing the blade 5 to cut the knot. Due to the setting of the limiting plate 11, the protective shell 7 will not be moved into the sleeve 1. After the stitch is cut, the inner shell 6 is pushed to move the protective shell 7 back to the initial position.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A knot pusher, comprising a housing (1), characterized in that: The bottom of the casing (1) is fixedly connected to a push rod (2), and a push head (3) is fixedly installed at the bottom of the push rod (2). The push head (3) has a push opening (4) at the bottom. The bottom of the casing (1) is hemispherical. A surgical blade (5) is fixedly installed on the side wall of the push rod (2).

2. The knot pusher according to claim 1, characterized in that: An inner shell (6) is movably installed inside the outer shell (1). The outer wall of the inner shell (6) is fitted to the inner wall of the outer shell (1). A cylindrical protective shell (7) is fixedly installed at the bottom of the inner shell (6). The protective shell (7) has symmetrical gap holes (8) on its front and rear sides. The bottom of the outer shell (1) has two arc-shaped through holes (9). The protective shell (7) is movably installed in the through holes (9). The protective shell (7) encloses the push rod (2) and the blade (5).

3. A knot pusher according to claim 2, characterized in that: A force-bearing ring (10) is fixedly installed on the inner ring of the inner shell (6). The force-bearing ring (10) is installed on the upper side wall of the inner shell (6). A limit plate (11) is fixedly installed on the bottom of the protective shell (7) away from the blade (5).

4. A knot pusher according to claim 3, characterized in that: Ventilation holes (12) are provided at the bottom of the outer shell (1) and the bottom of the inner shell (6), and the ventilation holes (12) on the outer shell (1) and the inner shell (6) are provided correspondingly.

Images