CN108567462B - Hemostatic clamp - Google Patents

Abstract

The invention discloses a hemostatic clamp which comprises a clamping arm, wherein the clamping arm comprises a fixed clamping arm and a movable clamping arm; the number of the movable clamping arms is more than 1; the tail end of the fixed clamping arm is connected with the tail end of the movable clamping arm; the fixed clamping arms are respectively matched with the movable clamping arms to form more than 1 clamping unit; each movable clamping arm independently carries out arc reciprocating motion relative to the fixed clamping arm to form independent opening and closing of the corresponding clamping unit. The clamping units are independently opened and closed, so that one side or a plurality of sides of the wound can be clamped during wound treatment, then the wound is pulled to the other side, and finally the whole wound is clamped, so that hemostasis is achieved. The hemostatic bag is absent in the prior art, solves the problem of hemostasis on a large wound, and greatly facilitates the operation of a doctor.

Description

Hemostatic clamp

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to a hemostatic clamp.

Background

At present, with the development of medical technology, endoscopes are applied not only to disease diagnosis but also to disease treatment, and whether the treatment effect is effective and reliable or not. Tissue organs of the stomach, intestinal tract, nasal cavity and the like of living beings often bleed due to various diseases or accidents. Wherein, the mechanical hemostasis of the hemostatic clamp under the endoscope only causes the minimal damage of the mucous membrane around the wound, can directly clamp and close the hemorrhagic blood vessel and the focus, is widely applied in the endoscope treatment, and has great significance.

However, the range of wound treatment of existing hemostatic clips is often limited by the length of the clamping arms of the hemostatic clip and the opening angle of the clamping arms, such as the hemostatic clip disclosed in patent CN201410222753, see fig. 1. Thus failing to address the treatment of large wounds. Even if the hemostatic clip with longer holding arms and a larger opening angle is used to meet the requirement of treating a large wound, the hemostatic clip also causes inconvenience to the operation of a doctor, even brings pain to a patient and causes further damage.

Disclosure of Invention

In view of the defects of the prior art, the technical problem to be solved by the invention is how to perform hemostasis on larger wounds without increasing the length and the opening angle of the clamping arms of the hemostatic clamp.

In order to achieve the aim, the invention provides a hemostatic clamp which comprises a clamping arm, wherein the clamping arm comprises a fixed clamping arm and a movable clamping arm; the number of the movable clamping arms is more than 1; the tail end of the fixed clamping arm is connected with the tail end of the movable clamping arm; the fixed clamping arms are respectively matched with the movable clamping arms to form more than 1 clamping unit; each movable clamping arm independently carries out arc reciprocating motion relative to the fixed clamping arm to form independent opening and closing of the corresponding clamping unit.

In one embodiment, the number of fixed clamp arms is 1; the number of the movable clamping arms is 2, the movable clamping arms are respectively arranged at the left side and the right side of the fixed clamping arms, and the number of the formed clamping units is 2.

Furthermore, the occlusion front ends of the fixed clamping arms are of V-shaped structures and are respectively matched with the occlusion front ends of the two movable clamping arms.

Furthermore, the V-shaped structure at the front occlusion end of the fixed clamping arm is respectively matched with the front occlusion ends of the two movable clamping arms in a zigzag manner.

Furthermore, the side wall of the clamping arm is gradually widened from the front end to the tail end.

In another embodiment, the number of fixed clamp arms is 1; the number of the movable clamping arms is 3, the movable clamping arms are respectively arranged around the fixed clamping arms, and the number of the formed clamping units is 3.

Furthermore, the occlusion front ends of the fixed clamping arms are Y-shaped structures and are respectively matched with the occlusion front ends of the 3 movable clamping arms.

Furthermore, the Y-shaped structure of the occlusion front end of the fixed clamping arm is respectively matched with the occlusion front ends of the 3 movable clamping arms in a zigzag manner.

Further, the device also comprises control elements, and the number of the control elements is the same as that of the movable clamping arms; the handling elements are arranged in a one-to-one correspondence with the movable gripping arms, so that each handling element operates its corresponding movable gripping arm individually.

Further, the clamping device also comprises a clamping seat connected with the clamping arm.

The beneficial effects are that:

each movable clamping arm independently carries out arc reciprocating motion relative to the fixed clamping arm to form independent opening and closing of the clamping unit corresponding to the movable clamping arm, which shows that each clamping unit can be in a closed state and an open state according to needs. In the endoscopic treatment, for a larger wound, the first clamping unit is used for clamping one side of the wound, and then the clamped side of the wound is pulled to move towards the other side, so that the movable clamping arm of the second clamping unit can touch the other side of the wound, the other side of the wound is clamped by the second clamping unit, and the hemostasis treatment operation of the wound, which is longer than the arm length of the clamping arm, is completed. When the wound is larger, a hemostatic clamp with a third clamping unit may be adopted, and the operation is similar. Just because each clamping unit is opened and closed independently, the wound can be treated by clamping one side or a plurality of sides of the wound, then pulling the other side, and finally clamping the whole wound to finish hemostasis. Which is not available in the prior art, greatly facilitates the operation of doctors.

The V-shaped structure and the Y-shaped structure are designed for matching with 2 or 3 movable clamping arms. The saw-toothed fit is also for better engagement, increasing friction. The side wall of the clamping arm is gradually widened from the front end to the tail end, so that the strength of the root of the clamping arm is enhanced, and meanwhile, the smoothness and the over-bending property of the clamping arm are not lost.

The manipulation elements are arranged to be connected with the movable clamping arms in a one-to-one correspondence, which facilitates the independent operation of each manipulation element on its corresponding movable clamping arm, thereby enabling the clamping units to be opened and closed independently of each other.

The main differences between the present invention and the prior art, as well as the conception, specific structure and technical effects of the present invention will be further described in the following with reference to the accompanying drawings, so as to fully understand the objects, features and effects of the present invention.

Drawings

Fig. 1 is a schematic structural view of a clamping portion of a hemostatic clamp according to the prior art.

Fig. 2 is a schematic structural view of a clamping portion of a hemostatic clip according to an embodiment of the present invention.

Detailed Description

Fig. 1 shows the general structure of the clamping portion of a prior art hemostatic clip. As can be seen from fig. 1, the hemostatic clamp comprises two movableclamping arms 2, and the clamping task is completed by controlling the opening and closing of the two movable clampingarms 2. In operation, the range of wound sizes treated is limited by the arm length and the opening angle of the movable clamp arms, and thus larger wounds cannot be treated.

Example 1

Fig. 2 shows the general structure of the clamping portion of a hemostatic clip according to one embodiment of the present invention. As can be seen from fig. 2, the blood stopping clip in this embodiment comprises a fixedholding arm 1 and two movable holdingarms 2 respectively arranged at both sides of the fixedholding arm 1. The tail end of the fixedclamping arm 1 is connected with the tail end of themovable clamping arm 2. Thefront occlusion end 11 of the fixedclamping arm 1 is in a V-shaped structure, so that the front occlusion ends of the two movableclamping arms 2 can be respectively matched with each other. The fixedclamping arm 1 is matched with eachmovable clamping arm 2 respectively to form 2clamping units 3; eachmovable clamping arm 2 independently performs arc reciprocating motion relative to the fixedclamping arm 1 to form independent opening and closing of thecorresponding clamping unit 3.

When hemostasis is performed on a large wound, one of the movable clampingarms 2 is operated firstly, so that theclamping unit 3 formed by the movable clamping arm and the fixedclamping arm 1 clamps one side of the wound. And then pulls the side of the wound that has been clamped to move to the other side, thereby allowing the othermovable clamping arm 2 to touch the other side of the wound. Themovable clamping arm 2 positioned at the other side of the wound is operated, so that the other side of the wound is clamped by theother clamping unit 3 formed by the movable clamping arm and the fixedclamping arm 1, and the hemostasis treatment operation of the wound which is longer than the arm length of the clamping arm is completed.

Example 2

The hemostatic clamp of this embodiment includes a fixed clamp arm and 3 movable clamp arms disposed around the fixed clamp arm. The front end of the fixed clamping arm is of a Y-shaped structure, so that the front end of the fixed clamping arm can be respectively matched with the front ends of the 3 movable clamping arms to form 3 clamping units. The rest is the same as example 1.

Theoretically, the number of the movable clamping arms can be infinite, and the design principle is the same as that ofembodiments 1 and 2, which is not described again here. In practice, 2 or 3 movable clamping arms can meet the current requirements.

Example 3

On the basis of theembodiments 1 and 2, the hemostatic clamp can be designed more finely, for example, the embodiment designs a zigzag structure on the V-shaped structure or the Y-shaped structure of the occlusion front end of the fixed clamping arm; respectively in zigzag fit with the occlusion front ends of the corresponding 2 or 3 movable clamping arms.

In addition, the hemostatic clamp in this embodiment further includes a manipulation member and a clamp seat connected to the clamping arm. The number of the control elements is the same as that of the movable clamping arms; the handling elements are arranged in a one-to-one correspondence with the movable gripping arms, so that each handling element operates its corresponding movable gripping arm individually.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (4)

1. A hemostatic clamp comprises a clamping arm, and is characterized in that the clamping arm comprises a fixed clamping arm and a movable clamping arm; the number of the fixed clamping arms is 1; the number of the movable clamping arms is 3; the tail end of the fixed clamping arm is connected with the tail end of the movable clamping arm; the fixed clamping arms are matched with the movable clamping arms respectively to form 3 clamping units; each activity centre gripping arm is independent carry out the pitch arc reciprocating motion for fixed centre gripping arm forms and corresponds it the independent switching of clamping unit, the interlock front end of fixed centre gripping arm is Y font structure, respectively with the interlock front end of 3 activity centre gripping arms matches.

2. The hemostatic clip of claim 1, wherein the Y-shaped configuration of the engagement front ends of the fixed gripping arms is in a zigzag configuration with the engagement front ends of the 3 movable gripping arms.

3. The hemostatic clip of claim 1, further comprising as many manipulation elements as there are movable clamping arms; the manipulation elements are arranged to be connected in a one-to-one correspondence with the movable gripper arms such that each manipulation element operates its corresponding movable gripper arm individually.

4. The hemostatic clip of claim 1, further comprising a clip seat connected to the clip arm.

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