A self-locking rigid clamping piece structure

Abstract

The application discloses a self-locking rigid clamping piece structure, which comprises a tightening pipe, two upper elastic flanges are symmetrically arranged on both sides of the upper end of the tightening pipe, a rivet is arranged between the upper elastic flanges, a clamping piece one and a clamping piece two are fixed on the rivet in a cross mode, and the clamping piece one and the clamping piece two adopt the same structure. The clamping piece one and the clamping piece two are conveniently fixed on the tightening pipe through the rivet and the upper elastic flanges, the connecting structure of the clamping piece one, the clamping piece two and the tightening pipe is effectively simplified, the cooperation and fixing of the buckle point and the limiting clamping edge are realized by pulling the rivet downward through a pull rod, the clamping piece one and the clamping piece two are self-locked and closed, meanwhile, the self-locking mechanism between the clamping piece one and the clamping piece two is simplified, the manufacturing cost of the self-locking rigid clamping piece structure is greatly reduced, and therefore the use cost of the self-locking rigid clamping piece structure in the endoscope surgery process is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a self-locking rigid clamping piece structure. BACKGROUND

[0002] At present, in clinical medical applications, gastrointestinal bleeding is a common clinical symptom. Endoscopic hemostasis has become one of the preferred hemostasis methods, and among the various hemostasis methods currently used, clip hemostasis has the advantages of small trauma, fast hemostasis speed, and fewer complications, and has a definite effect, and has become an important method for non-surgical treatment of gastrointestinal bleeding. The basic principle is to use a specially designed small metal clip to directly clamp the bleeding blood vessels or torn mucosa, which plays a mechanical compression hemostasis and suture role, and its effectiveness has been confirmed.

[0003] The patent number CN201820499948.X discloses an endoscope clip and a clip device, which belong to the technical field of medical devices. The endoscope clip comprises a first clamping piece, a second clamping piece, a first connecting piece and a second connecting piece. The first clamping piece is hinged to the second clamping piece, the first clamping piece is hinged to the first connecting piece, the second clamping piece is hinged to the second connecting piece, the first connecting piece is hinged to the second connecting piece, the first clamping piece and the second clamping piece are provided with first matching parts, and the first connecting piece and the second connecting piece are provided with second matching parts. When the clip is closed, the first matching part of the first clamping piece is locked with the second matching part of the first connecting piece, and the first matching part of the second clamping piece is locked with the second matching part of the second connecting piece.

[0004] The endoscope clip and the clip device of the above structure can realize self-locking closure of the first clamping piece and the second clamping piece by pulling the connecting pipe during use, so as to clamp and stop bleeding at the bleeding site of the patient during endoscopic surgery. However, the overall structure of the first connecting piece, the second connecting piece, the clamping piece support, the pull rod, the connecting pipe and the rotating sleeve of the endoscope clip and the clip device of the above structure for realizing self-locking separation is relatively complex, which leads to high manufacturing cost of the endoscope clip and the clip device of the above structure. In turn, it increases the use cost of the endoscope clip and the clip device of the above structure during endoscopic surgery. SUMMARY

[0005] The purpose of the present application is to provide a self-locking rigid clamping piece structure to solve the above problems.

[0006] The present application achieves the above-mentioned purpose through the following technical solutions:

[0007] The utility model provides a self-locking rigid clamping piece structure, including the tightening pipe, the upper elastic flanging is symmetrically arranged on the both sides of the upper end of tightening pipe, the upper elastic flanging between installation has the rivet, rivet is fixed with the clamping piece one and the clamping piece two in the cross mode, the clamping piece one with the clamping piece two adopt the same structure, the clamping piece one includes the pressure relief hole of setting in the clamping part, the buckle point of setting in the downside of pressure relief hole and the rivet hole with rivet cooperation, the both sides wall of tightening pipe is equipped with the limit card slot, limit card edge is installed in limit card slot with buckle point cooperation, the middle part of rivet is further connected with pull rod, pull rod includes straight rod part, the connecting part of setting in the upper side of straight rod part and the hook head of fixing in the upper side of connecting part, the lower side of pull rod is connected with the cable, the connecting pipe is covered in the outer side of pull rod, the spring connecting piece is arranged below the tightening pipe, the rotating shaft is installed between the top end of spring connecting piece and the bottom end of tightening pipe, the rotating shaft includes straight cylinder part, the upper taper of setting in the upper side of straight cylinder part and the lower taper of setting in the downside of straight cylinder part, the lower elastic flanging is installed with the upper taper cooperation part on the tightening pipe, the limit shoulder is arranged with the lower taper cooperation part on the spring connecting piece, the spring pipe is connected with the inner bottom end of spring connecting piece.

[0008] Further, the upper elastic flanging is formed on the tightening pipe, and a space is reserved between the two upper elastic flangings for the rotation of the clamping piece one and the clamping piece two.

[0009] By adopting the above technical scheme, the upper elastic flanging can ensure that the clamping piece one can be conveniently rotated relative to the tightening pipe during use.

[0010] Further, the pressure relief hole, the buckle point, and the rivet hole are all formed on the clamping piece one, and the rivet penetrates through the clamping piece one and the clamping piece two.

[0011] By adopting the above technical scheme, the clamping piece one can be conveniently rotated relative to the clamping piece two under the action of the rivet, so that the clamping piece one and the clamping piece two can clamp and stop bleeding at the wound of a patient.

[0012] Further, the clamping piece one and the clamping piece two are rotationally connected with the rivet, and the length of the rivet is less than the inner diameter of the tightening pipe.

[0013] By adopting the above technical scheme, the rivet can be conveniently moved up and down along the tightening pipe.

[0014] Further, the limit card slot is formed on the tightening pipe, the limit card edge adopts an inclined structure inside the box, and the shape of the limit card edge matches the shape of the buckle point.

[0015] By adopting the technical scheme, when it is needed to clamp the tissue of a patient for hemostasis during an endoscopic surgery, the clamping piece one and the clamping piece two are aligned with the tissue of the patient to be clamped, and the drawstring is pulled, so that the rivet moves downward along the tightening tube under the action of the drawstring, thereby driving the clamping piece one and the clamping piece two to close, so as to achieve reliable self-locking closure of the clamping piece one and the clamping piece two after the buckle point and the limiting clamping edge are inserted, and the clamping of the tissue of the patient is completed.

[0016] Further, the drawstring, the drawbar and the connecting tube are all welded.

[0017] By adopting the technical scheme, the drawstring is mainly used to provide pulling force for the drawbar, so as to make the clamping piece one and the clamping piece two shrink inwardly in the tightening tube.

[0018] Further, the lower elastic flange is formed on the tightening tube, and the lower elastic flange adopts an inward turning structure.

[0019] By adopting the technical scheme, the lower elastic flange and the upper conical surface can achieve reliable cooperation and fixation of the rotating shaft and the spring connecting piece, but since the lower elastic flange has a certain elasticity, the rotating shaft will eventually separate from the lower elastic flange when the drawbar is continuously stressed.

[0020] Further, the upper conical surface and the lower conical surface are both formed on the straight cylinder portion.

[0021] By adopting the technical scheme, the upper conical surface and the lower conical surface can be reliably fixed with the straight cylinder portion, and the connecting tube can pass through the rotating shaft.

[0022] Further, the limiting shoulder is formed on the spring connecting piece, and the limiting shoulder structure is matched with the lower conical surface structure.

[0023] By adopting the technical scheme, the limiting shoulder and the lower conical surface can achieve reliable fixation of the rotating shaft on the spring connecting piece.

[0024] Further, the spring tube is welded with the spring connecting piece, and the drawstring penetrates the spring tube and the spring connecting piece.

[0025] By adopting the technical scheme, the spring connecting piece, the connecting tube, the rotating shaft and the drawbar can be synchronously moved downward when the drawstring is pulled.

[0026] The specific working principle is as follows: when in use, first, the part to be hemostatic on the patient's body in the endoscopic surgery is located between the clamping piece one and the clamping piece two, then the pull rope is pulled, so that the rivet moves downward along the tightening pipe under the action of the pull rope, thereby driving the clamping piece one and the clamping piece two to close, when the buckle point on the clamping piece one and the clamping piece two is inserted into the limiting clamping edge, reliable self-locking closure of the clamping piece one and the clamping piece two is realized, so that the clamping of the patient's body tissue is completed, the convenient clamping and hemostasis of the bleeding part of the patient in the endoscopic surgery is realized, after the clamping piece one and the clamping piece two are clamped and closed, the pull rope is continuously pulled, the pull rod is first separated from the rivet, then the rotating shaft is separated from the lower elastic flange, so that the rotating shaft, the spring pipe, the spring connecting piece, the pull rod and the connecting pipe are pulled out, and the clamping piece one, the clamping piece two and the tightening pipe remain in the patient's hand part to hemostasis the patient.

[0027] The beneficial effects of the present application are that:

[0028] The present application realizes convenient fixation of the clamping piece one and the clamping piece two on the tightening pipe through the rivet and the upper elastic flange, effectively simplifies the connection structure of the clamping piece one, the clamping piece two and the tightening pipe, realizes the cooperation and fixation of the buckle point and the limiting clamping edge through the pull rod pulling the rivet downward, thereby realizing the self-locking closure of the clamping piece one and the clamping piece two, and also simplifying the self-locking mechanism between the clamping piece one and the clamping piece two, so that the manufacturing cost of the self-locking rigid clamping piece structure is greatly reduced, thereby reducing the use cost of the self-locking rigid clamping piece structure in the endoscopic surgery process. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a front view of the self-locking rigid clamping piece structure;

[0030] Figure 2 is a sectional view of the self-locking rigid clamping piece structure in the A-A direction;

[0031] Figure 3 is a structure diagram of the clamping piece one in the self-locking rigid clamping piece structure;

[0032] Figure 4 is a back view of the clamping piece one in the self-locking rigid clamping piece structure;

[0033] Figure 5 is a structure diagram of the tightening pipe in the self-locking rigid clamping piece structure;

[0034] Figure 6 is a bottom view of the tightening pipe in the self-locking rigid clamping piece structure;

[0035] Figure 7 is a structure diagram of a rotating shaft in a self-locking rigid clamping piece structure according to the present application;

[0036] Figure 8 is a structure diagram of a spring connecting piece in a self-locking rigid clamping piece structure according to the present application;

[0037] Figure 9 is a structure diagram of a pull rod in a self-locking rigid clamping piece structure according to the present application;

[0038] Figure 10 is a structure diagram of a self-locking rigid clamping piece structure according to the present application; Figure 2 is an enlarged view of A in FIG. 4.

[0039] The reference signs are explained as follows:

[0040] 1, clamping piece one; 101, pressure reducing hole; 102, buckle point; 103, rivet hole; 2, pull rod; 201, hook head; 202, connecting part; 203, straight rod part; 3, tightening tube; 301, lower elastic flange; 302, limiting buckle edge; 303, limiting buckle groove; 304, upper elastic flange; 4, rotating shaft; 401, upper conical surface; 402, lower conical surface; 403, straight cylinder part; 5, spring connecting piece; 501, limiting shoulder; 6, spring tube; 7, pull cable; 8, rivet; 9, connecting tube; 10, clamping piece two. DETAILED DESCRIPTION

[0041] The present application is further explained in connection with the accompanying drawings:

[0042] As Figures 1-10As shown, a self-locking rigid clamping piece structure includes a tightening tube 3, two upper elastic flanges 304 are symmetrically arranged on the upper end of the tightening tube 3, a rivet 8 is installed between the upper elastic flanges 304, a clamping piece one 1 and a clamping piece two 10 are fixed in a cross manner on the rivet 8, the rivet 8 can realize reliable connection of the clamping piece one 1 and the clamping piece two 10 on one hand, and can realize convenient rotation of the clamping piece one 1 and the clamping piece two 10 on the other hand, the clamping piece one 1 and the clamping piece two 10 adopt the same structure, the clamping piece one 1 includes a decompression hole 101 opened in a clamping part, a buckle point 102 opened on the lower side of the decompression hole 101 and a rivet hole 103 matched with the rivet 8, the decompression hole 101 can reduce the pressure on the patient's tissue during clamping the patient's tissue, a limiting clamping groove 303 is opened on the two side walls of the tightening tube 3, a limiting clamping edge 302 matched with the buckle point 102 is installed in the limiting clamping groove 303, the limiting clamping groove 303 matched with the buckle point 102 can realize self-locking of the clamping piece one 1 and the clamping piece two 10 after clamping, a pull rod 2 is further connected to the middle part of the rivet 8, the pull rod 2 includes a straight rod part 203, a connecting part 202 arranged on the upper side of the straight rod part 203 and a hook head 201 fixed on the upper side of the connecting part 202, the pull rod 2 is mainly used to realize downward pulling of the rivet 8, so as to realize adjustment of the opening and closing degree of the clamping piece one 1 and the clamping piece two 10, when the clamping piece one 1 and the clamping piece two 10 are self-locked and closed, the hook head 201 on the pull rod 2 is separated from the rivet 8, so as to realize continuous downward movement of the pull rod 2, a drawstring 7 is connected to the lower side of the pull rod 2, the drawstring 7 is mainly used to provide traction for the downward movement of the pull rod 2, a connecting tube 9 is sleeved on the outer side of the pull rod 2, a spring connecting piece 5 is arranged below the tightening tube 3, a rotating shaft 4 is installed between the top end of the spring connecting piece 5 and the bottom end of the tightening tube 3, the connecting tube 9 makes the drawstring 7, the pull rod 2 and the rotating shaft 4 into an integrated structure, which is convenient for subsequent pulling away from the tightening tube 3, the rotating shaft 4 includes a straight cylinder part 403, an upper conical table 401 arranged on the upper side of the straight cylinder part 403 and a lower conical table 402 arranged on the lower side of the straight cylinder part 403, a lower elastic flange 301 is installed on the upper matching part of the upper conical table 401 on the tightening tube 3, a limiting shoulder 501 is arranged on the lower matching part of the lower conical table 402 on the spring connecting piece 5, the lower elastic flange 301 and the limiting shoulder 501 can realize reliable installation and fixation of the rotating shaft 4, so as to realize reliable matching and fixation of the tightening tube 3 and the spring connecting piece 5, a spring tube 6 is connected to the inner bottom end of the spring connecting piece 5.

[0043] In the embodiment, the upper elastic flange 304 is formed on the tightening tube 3, and a space is reserved between the two upper elastic flanges 304 for the rotation of the clamping piece 1 and the clamping piece 2, and the upper elastic flange 304 can ensure that the clamping piece 1 can be conveniently rotated relative to the tightening tube 3 during use.

[0044] In the embodiment, the pressure relief hole 101, the buckle point 102, and the rivet hole 103 are all formed on the clamping piece 1, the rivet 8 penetrates the clamping piece 1 and the clamping piece 2, and under the action of the rivet 8, the clamping piece 1 can be conveniently rotated relative to the clamping piece 2, so that the clamping piece 1 and the clamping piece 2 can clamp and stop bleeding at the wound of the patient.

[0045] In the embodiment, the clamping piece 1 and the clamping piece 2 are rotationally connected with the rivet 8, and the length of the rivet 8 is less than the inner diameter of the tightening tube 3, so that the rivet 8 can be conveniently moved up and down along the tightening tube 3.

[0046] In the embodiment, the limiting clamping groove 303 is formed on the tightening tube 3, and the limiting clamping edge 302 adopts an inclined structure in the box, and the shape of the limiting clamping edge 302 matches the shape of the buckle point 102. When it is necessary to clamp the patient's tissue and stop bleeding during the endoscopic surgery, the clamping piece 1 and the clamping piece 2 are aligned with the tissue to be clamped on the patient's body, and the pull rope 7 is pulled, so that the rivet 8 can be moved downward along the tightening tube 3 under the action of the pull rope 7, thereby driving the clamping piece 1 and the clamping piece 2 to close, so that after the buckle point 102 and the limiting clamping edge 302 are inserted, the clamping piece 1 and the clamping piece 2 are reliably self-locked and closed, so as to complete the clamping of the patient's body tissue.

[0047] In the embodiment, the pull rope 7, the pull rod 2, and the connecting tube 9 are all welded, the pull rope 7 is welded with the rotating shaft 4, and the pull rope 7 is mainly used to provide pulling force for the pull rod 2, so as to make the clamping piece 1 and the clamping piece 2 shrink into the tightening tube 3.

[0048] In the embodiment, the lower elastic flange 301 is formed on the tightening tube 3, and the lower elastic flange 301 adopts an inward turning structure. The lower elastic flange 301 cooperates with the upper conical frustum 401 to realize reliable cooperation and fixation of the rotating shaft 4 and the spring connecting piece 5, but because the lower elastic flange 301 has a certain elasticity, the rotating shaft 4 will finally separate from the lower elastic flange 301 when the pull rod 2 is continuously stressed.

[0049] In the embodiment, the upper conical surface 401 and the lower conical surface 402 are formed on the straight cylinder part 403, so that the upper conical surface 401 and the lower conical surface 402 can be reliably fixed on the straight cylinder part 403, and the connecting pipe 9 can pass through the rotating shaft 4.

[0050] In the embodiment, the limiting shoulder 501 is formed on the spring connecting piece 5, the limiting shoulder 501 is matched with the structure of the lower conical surface 402, and the limiting shoulder 501 and the lower conical surface 402 can reliably fix the rotating shaft 4 on the spring connecting piece 5.

[0051] In the embodiment, the spring pipe 6 is welded with the spring connecting piece 5, and the cable 7 passes through the spring pipe 6 and the spring connecting piece 5, so that the spring connecting piece 5, the connecting pipe 9, the rotating shaft 4 and the pull rod 2 can be synchronously moved downward when the cable 7 is pulled.

[0052] Specific working principle is that: when used, first, the part to be hemostatic on the patient's body in the endoscopic surgery is located between the clamping piece one 1 and the clamping piece two 10, then the cable 7 is pulled, so that the rivet 8 moves downward along the tightening pipe 3 under the action of the cable 7, thereby driving the clamping piece one 1 and the clamping piece two 10 to close, when the buckle point 102 on the clamping piece one 1 and the clamping piece two 10 is inserted into the limiting buckle edge 302, the clamping piece one 1 and the clamping piece two 10 can be reliably self-locked and closed, so as to complete the clamping of the patient's body tissue, realize the convenient clamping and hemostasis of the bleeding part of the patient in the endoscopic surgery, after the clamping piece one 1 and the clamping piece two 10 are clamped and closed, the cable 7 is continuously pulled, the pull rod 2 is first separated from the rivet 8, then the rotating shaft 4 is separated from the lower elastic flange 301, so that the rotating shaft 4, the spring pipe 6, the spring connecting piece 5, the pull rod 2 and the connecting pipe 9 are pulled out, while the clamping piece one 1, the clamping piece two 10 and the tightening pipe 3 remain in the patient's hand part to hemostasis the patient.

[0053] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A self-locking rigid clip structure, characterized by: The invention comprises a tightening tube (3), wherein two upper elastic flanges (304) are symmetrically arranged on both sides of the upper end of the tightening tube (3), a rivet (8) is installed between the upper elastic flanges (304), a clip 1 (1) and a clip 2 (10) are fixed on the rivet (8) in a cross manner, the clip 1 (1) and the clip 2 (10) adopt the same structure, the clip 1 (1) comprises a pressure relief hole (101) opened on the clamping part, a buckle opened on the lower side of the pressure relief hole (101), and a clamping member (101) provided on the clamping part. The tightening tube (3) is provided with a limit card groove (303) on both side walls, and a limit card edge (302) is installed in the limit card groove (303) to cooperate with the buckle point (102). The middle part of the rivet (8) is also connected to a pull rod (2), and the pull rod (2) includes a straight rod part (203), a connecting part (202) arranged on the upper side of the straight rod part (203), and a connecting part (202) fixed on the connecting part (203). 02), a hook head (201) on the upper side of the pull rod (2), a cable (7) is connected to the lower side of the pull rod (2), a connecting tube (9) is sleeved on the outer side of the pull rod (2), a spring connector (5) is provided below the tightening tube (3), a rotating shaft (4) is installed between the top end of the spring connector (5) and the bottom end of the tightening tube (3), and the rotating shaft (4) includes a straight tube portion (403), an upper cone (401) provided on the upper side of the straight tube portion (403), and a spring connector (5) provided on the lower side of the tightening tube (3). The lower cone (402) is on the lower side, and a lower elastic flange (301) is installed on the tightening tube (3) at the position that cooperates with the upper cone (401). A limiting shoulder (501) is provided on the spring connector (5) at the position that cooperates with the lower cone (402). The inner bottom end of the spring connector (5) is connected to a spring tube (6). The clip 1 (1) and the clip 2 (10) are both rotatably connected to the rivet (8), and the length of the rivet (8) is smaller than the inner diameter of the tightening tube (3).

2. A self-locking rigid clip structure according to claim 1, characterized in that: The upper elastic flange (304) is formed on the tightening tube (3), and a space is reserved between the two upper elastic flanges (304) for the rotation of the clip 1 (1) and the clip 2 (10).

3. The self-locking rigid clip structure according to claim 1, characterized in that: The pressure reducing hole (101), the buckle point (102) and the rivet hole (103) are all formed on the clip one (1), and the rivet (8) passes through the clip one (1) and the clip two (10).

4. The self-locking rigid clip structure according to claim 1, characterized in that: The limiting card slot (303) is formed on the tightening tube (3), the limiting card edge (302) adopts an in-box inclined structure, and the shape of the limiting card edge (302) matches the shape of the buckle point (102).

5. The self-locking rigid clip structure according to claim 1, characterized in that: The pull cable (7) is welded to the pull rod (2) and the connecting pipe (9), and the pull cable (7) is welded to the rotating shaft (4).

6. The self-locking rigid clip structure according to claim 1, characterized in that: The lower elastic flange (301) is formed on the tightening tube (3), and the lower elastic flange (301) adopts an inverted structure.

7. The self-locking rigid clip structure according to claim 1, characterized in that: The upper frustum (401) and the lower frustum (402) are both formed on the straight cylindrical portion (403).

8. The self-locking rigid clip structure according to claim 1, characterized in that: The limiting shoulder (501) is formed on the spring connector (5), and the limiting shoulder (501) structure matches the lower frustum (402) structure.

9. The self-locking rigid clip structure according to claim 1, characterized in that: The spring tube (6) is welded to the spring connector (5), and the pull cable (7) passes through the spring tube (6) and the spring connector (5).

Images