Clip applier head mechanism with clip arranging function and continuous clip applier applying clip applier head mechanism

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a clip applier head mechanism with a clip arranging function and a continuous clip applier applying the clip applier head mechanism. The utility model provides a clip applier head mechanism with a clip arranging function, aiming at the problem that in the prior art, a clip applier fails to hold a clip and a waste clip is not easy to take out, the clip applier head mechanism with the clip arranging function comprises a clip, a clip closing mechanism, a clip pushing rod and a clip head fixing sleeve, and the clip closing mechanism and the clip head fixing sleeve jointly fix the clip; the clamp head fixing sleeve is provided with a clamp conveying face with the gravity center inclining towards the clamp pushing rod, one side of the clamp pushing rod is tightly attached to the clamp conveying face and used for conveying clamps, the clamp head fixing sleeve is further provided with a clamp outlet used for discharging the titanium clamps out of the clamp head mechanism, the clamp outlet penetrates through the side wall of the clamp head fixing sleeve, and the end, away from the clamp, of the clamp conveying face is communicated with the clamp outlet. When the clamp fails to clamp the clamp, the waste clamp can slide out of the clamp outlet along the clamp feeding surface. The utility model further provides an integral scheme of the running clip applier applying the clip head mechanism.

Description

[0001] The utility model belongs to the technical field of medical equipment, especially relates to a clamp head mechanism of clip applier with the function of discharging a clip and a continuous clip applier using the clamp head mechanism. BACKGROUND

[0002] As a common hemostatic instrument in minimally invasive surgery, the clip applier completes the hemostasis of blood vessels by operating the clamp head to make the hemostatic clip clamped on the blood vessels. The common hemostatic clip is generally elastic and can be automatically maintained in an open state to be clamped by the clamp head. However, due to the aging of the clamp head or the failure of the clip to normally open, the clamp head cannot hold the clip successfully, and the clip inside needs to be taken out for the next time of clip application. It is troublesome to take out the failed clip.

[0003] For example, a continuous clip applier is disclosed in a Chinese invention patent [application number: CN202111376487.X]. The invention includes a clip applier shell, a clamp head push rod connected to the clip applier shell, and a clamp head provided at one end of the clamp head push rod. Moving the clamp head push rod can drive the clamp head to open or clamp. The clip applier shell is provided with a clip mounting structure, and a first feeding mechanism and a second feeding mechanism are also provided. The driving handle pushes the push structure into the first feeding space through the first feeding mechanism, and the driving handle pushes the push structure into the second feeding space through the second feeding mechanism. When the tissue clip is pushed out, the invention can effectively reduce the amplitude of the automatic opening action of the tissue clip, and then slowly clamps to complete closure by using the second feeding mechanism, so it is more suitable for the tissue clip that automatically opens when being pushed out.

[0004] Although the invention uses a two-step clamping method to improve the stability of the tissue clip that automatically opens when being pushed out, it still does not solve the problem of the clip clamping failure and being stuck in the clamp head. SUMMARY

[0005] The utility model aims at the above problem, and provides a clamp head mechanism of clip applier with the function of discharging a clip to realize the function of more easily taking out the waste clip.

[0006] The utility model also provides a continuous clip applier scheme using the clamp head mechanism of clip applier with the function of discharging a clip.

[0007] The utility model discloses a clamp head mechanism of clip applier with the function of discharging a clip, which includes a clamp, a clamp closing mechanism, a push clip rod and a clamp fixing sleeve. The clamp closing mechanism and the clamp fixing sleeve jointly fix the clamp. The clamp fixing sleeve is provided with a center of gravity inclined to the direction of the push clip rod, and the push clip rod is tightly attached to the sending clip surface on one side for sending the clip. The clamp fixing sleeve is also provided with a clip outlet for discharging the titanium clip to the outside of the clamp head mechanism. The clip outlet penetrates the side wall of the clamp fixing sleeve, and the end of the sending clip surface away from the clamp is connected to the clip outlet.

[0008] Preferably, the clamping fixing sleeve is provided with a limiting mechanism which limits the opening tendency of the clamping after the maximum clamping state.

[0009] Preferably, the limiting mechanism is a protrusion which is connected to the clamping fixing sleeve and extends perpendicularly to the opening direction of the clamping.

[0010] Preferably, the clamping closing mechanism comprises a sliding sleeve and a push rod, and the push rod pushes the sliding sleeve to press the clamping to open or close.

[0011] Preferably, the clamping comprises a clamping head and a clamping strip part which is connected to the clamping head and whose width decreases in sequence away from the clamping head, and the sliding sleeve slides towards the clamping head to press the clamping strip part to drive the clamping head to open or close.

[0012] Preferably, the clamping strip part is provided with at least one stopper which is pressed by the sliding sleeve to drive the clamping head to open or close.

[0013] The utility model discloses a kind of continuous application of above-mentioned clamping forceps head mechanism, in addition to above-mentioned components, also package handle part, clip sleeve body and skeleton main body, the clip sleeve body is embedded in skeleton main body and contains clip;The handle part promotes push rod to drive clamping to open or close.

[0014] Preferably, the clamping fixing sleeve comprises a clamping part and a plug-in part, and the plug-in part is plugged into the skeleton main body.

[0015] Preferably, the push rod and the push clamping rod are respectively slidably fixed on two sides of the skeleton main body, the clamping is clamped between the push rod and the skeleton main body, and the push rod and the push clamping rod are sleeved with a sleeve on the outside.

[0016] Preferably, the push rod and the sliding sleeve are plugged, and the push rod and the sliding sleeve jointly clamp the clamping on one side.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The utility model discloses a limiting mechanism is arranged near the clamping to prevent the clamping from opening too much, so that the opening range of the clamping can always keep the state of clamping hemostatic clips, and fundamentally solve the problem that the clamping fails to clamp when the clip pops out after the continuous clamping forceps is used for a long time and the clamping opens too large an angle due to aging. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall schematic view of the continuous clamping forceps to which the utility model is applied.

[0020] Figure 2 It is Figure 1 Partial structure explosion map.

[0021] Figure 3 It isFigure 2 Partial enlarged view;

[0022] Figure 4 For Figure 2 Another perspective view in the state;

[0023] Figure 5 For the utility model clamping fixed sleeve schematic diagram;

[0024] Figure 6 For Figure 2 Further exploded view in the state;

[0025] In the figure: clamp 1, clamp closing mechanism 2, push clamp rod 3, clamp fixed sleeve 4, limiting mechanism 5, handle part 6, clip sleeve body 7, skeleton main body 8, sleeve 9, chuck 11, clip strip part 12, sliding sleeve 21, push rod 22, send clip surface 41, out of the clip mouth 42, plug-in part 43, protrusion 51, stop piece 121. Specific implementation

[0026] The utility model makes further detailed explanation in combination with the specific implementation and the accompanying drawing.

[0027] The utility model provides a kind of clamp head mechanism with rowing and clamping function, as shown in Figure 1 、 2 , 4, 5, including clamp 1, clamp closing mechanism 2, push clamp rod 3 and clamp fixed sleeve 4, the clamp closing mechanism 2 and clamp fixed sleeve 3 are fixed clamp 1 in common;The utility model innovation lies in, clamp fixed sleeve 4 is equipped with the send clip surface 41 that gravity center is inclined to push clamp rod 3 direction, push clamp rod 3 side is closely attached to send clip surface 41 for sending clip, the out of the clip mouth 42 for being exported to the outside of clamp head mechanism by titanium clip row is further provided on the clamp fixed sleeve 4, the out of the clip mouth 42 is through the side wall of clamp fixed sleeve 4, the send clip surface 41 far from the end of clamp 1 and out of the clip mouth 42 are connected.

[0028] The utility model, when using, push clamp rod 3 is pushed to the clamp 1 by send clip surface 41 and is clamped by it.If push fails, clip will slide along the inclined send clip surface 41 and drop out of send clip surface 41, without affecting subsequent sending clip.

[0029] Preferably, the clamp fixed sleeve 4 is provided with limiting mechanism 5, the limiting mechanism 5 limits the tendency of clamp 1 after maximum holding clip state and prevents clamp 1 from overexpansion to cause holding clip failure.

[0030] Preferably, as shown in Figure 2 , 3, the limiting mechanism 5 is the protrusion 51 that is connected on clamp fixed sleeve 4 and closely attached to the head of clamp 1 and extends perpendicular to the opening direction of clamp 1.

[0031] Preferably, as shown in Figure 2 ,6 As shown, the clamp closing mechanism 2 comprises a sliding sleeve 21 and a push rod 22, the push rod 22 pushes the sliding sleeve 21 to extrude the clamp 1 to open or close.

[0032] Specifically, the clamp 1 comprises a clamp head 11 and a clamp strip part 12, the clamp strip part 12 is connected with the clamp head 11 and the width of the clamp strip part 12 decreases along the direction away from the clamp head 11, the sliding sleeve 21 slides to the direction close to the clamp head 11 to extrude the clamp strip part 12 and drive the clamp head 11 to open or close.

[0033] Preferably, the clamp strip part 12 is provided with at least one stopper 121, the clamp strip part 12 is extruded by the sliding sleeve 21 through the stopper 121 to drive the clamp head 11 to open or close.

[0034] Specifically, the utility model provides a kind of application above-mentioned technology's continuous firing clamp implementation scheme, in addition to the clamp head mechanism of above-mentioned clamp with rowing function, still package handle part 6, clip sleeve body 7 and skeleton main body 8, the clip sleeve body 7 is embedded in skeleton main body 8 and contains clip;The handle part 6 pushes push rod 22, push rod 22 pushes sliding sleeve 21 extrusion clamp strip part 12 to realize drive clamp head 11 to open or close.

[0035] Specifically, the clamp fixing sleeve 4 further comprises an insertion part 42, and the insertion part 42 is inserted into the skeleton main body 8.

[0036] The push rod 22 and the push clamp rod 3 are respectively slidably fixed on both sides of the skeleton main body 8, the clamp 1 is clamped between the push rod 22 and the skeleton main body 8, and the push rod 22 and the push clamp rod 3 are sleeved with the sleeve 9 outside.

[0037] Preferably, the push rod 22 and the sliding sleeve 21 are connected in an insertion manner, and the push rod 22 and the sliding sleeve 21 jointly clamp the clamp 1 on one side, that is, one side of the clamp 1 is clamped by the push rod 22 and the sliding sleeve 21, and the other side is clamped by the clamp fixing sleeve 4.

[0038] The working principle of the embodiment is as follows: Figure 2 , 4, 6, one side of the clamp 1 is held by the push rod 22 and the sliding sleeve 21, and the other side is held by the clamp fixing sleeve 4 to realize fixation, the handle part 6 controls the push rod 22 and the push clamp rod 3 to realize the pushing of the sliding sleeve 21 and the extrusion of the stopper 121 on the clamp strip part 12 respectively, so as to realize the clamping of the clamp head 11 on the clamp and the pushing of the clamp in the clamp sleeve body 7 through the sending clamp surface 41 of the clamp fixing sleeve 4. The continuous feeding clamp takes the framework main body 8 as the main support, the clamp sleeve body 7 is embedded and fixed in the framework main body 8, and the push rod 22 and the push clamp rod 3 are respectively fixed on both sides of the framework main body 8 to realize the sliding connection with the framework main body 8. The clamp fixing sleeve 4 is connected and fixed with the framework main body 8 through the plug-in part 43. The outer sleeve 9 of the continuous feeding clamp realizes the packaging and limiting of the related internal structure. The protrusion 51 on the clamp fixing sleeve 4 can prevent the clamp head 11 from being excessively stretched due to aging and other reasons, which can cause the clamp to fail. When the clamp fails due to the quality of the clamp and other problems, the discarded clamp can be dropped out of the clamp outlet 42 along the slope of the sending clamp surface 41, which is convenient for the next normal sending clamp.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0040] Although the terms such as clamp 1, clamp clamping mechanism 2, push clamp rod 3, clamp fixing sleeve 4, limiting mechanism 5, handle part 6, clamp sleeve body 7, framework main body 8, sleeve 9, clamp head 11, clamp strip part 12, sliding sleeve 21, push rod 22, sending clamp surface 41, clamp outlet 42, plug-in part 43, protrusion 51, stopper 121 and the like are used more in this paper, but the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the present application; any additional limitation is contrary to the spirit of the present application.

Claims

1. A clip applier head mechanism with a clamping function, comprising a clamp (1), a clamp closing mechanism (2), a push clamp rod (3) and a clamp fixing sleeve (4), the clamp closing mechanism (2) and the clamp fixing sleeve (4) jointly fix the clamp (1); characterized in that: The clamping fixing sleeve (4) is provided with a clamping surface (41) inclined to the direction of the push clamping rod (3), and the push clamping rod (3) is in close contact with the clamping surface (41) on one side for clamping. The clamping fixing sleeve (4) is also provided with an ejection opening (42) for ejecting the titanium clamps outside the jaw mechanism. The ejection opening (42) penetrates the side wall of the clamping fixing sleeve (4), and the end of the clamping surface (41) away from the clamp (1) is connected with the ejection opening (42).

2. The jaw mechanism of a clipping application forceps having a clamping function according to claim 1, wherein: The clamping fixing sleeve (4) is provided with a limiting mechanism (5) which limits the tendency of the clamp (1) to open after being in the maximum clamping state.

3. The jaw mechanism of a clipping function of a clip applier according to claim 2, wherein: The limiting mechanism (5) is a protrusion (51) connected to the clamping fixing sleeve (4) and in close contact with the head of the clamp (1) and extending perpendicular to the opening direction of the clamp (1).

4. The jaw mechanism of a clipping application forceps having a function of discharging clips according to claim 1, wherein: The clamp closing mechanism (2) includes a sliding sleeve (21) and a push rod (22), and the push rod (22) pushes the sliding sleeve (21) to press the clamp (1) to open and close.

5. The jaw mechanism of a clipping function of a clip applier according to claim 4, wherein: The clamp (1) includes a clamp head (11) and a clamp strip part (12) whose width decreases in sequence away from the clamp head (11), and the sliding sleeve (21) slides towards the clamp head (11) to press the clamp strip part (12) and drive the clamp head (11) to open and close.

6. The jaw mechanism of a clipping function of a clip applier of claim 5, wherein: The clamp strip part (12) is provided with at least one stop piece (121), and the stop piece (121) is pressed by the sliding sleeve (21) to drive the clamp head (11) to open and close.

7. A continuous feeding clip applier using the clip applier jaw mechanism having a row clamping function according to claim 1, characterized in that: It also includes a handle part (6), a clip sleeve (7) and a skeleton body (8). The clip sleeve (7) is embedded in the skeleton body (8) and contains the clip. The handle part (6) pushes the push rod (22) to drive the clamp (1) to open and close.

8. The sequential deployment clip applier of Claim 7, wherein: The clamping fixing sleeve (4) also includes a plug-in part (43) which is plugged into the skeleton body (8).

9. The sequential deployment clip applier of Claim 8, wherein: The push rod (22) and the push clamping rod (3) are respectively slidably fixed on both sides of the skeleton body (8), the clamp (1) is clamped between the push rod (22) and the skeleton body (8), and the push rod (22) and the push clamping rod (3) are externally sleeved with a sleeve (9).

10. The sequential deployment clip applier of Claim 9, wherein: The push rod (22) and the sliding sleeve (21) are plugged together, and the push rod (22) and the sliding sleeve (21) jointly clamp the clamp (1) on one side.

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