Clamping mechanism, hemostatic clip comprising same, and use method therefor

Abstract

A clamping mechanism, a hemostatic clip comprising same, and a use method therefor. The hemostatic clip comprises the clamping mechanism for controlling clamping of a core shaft (100) and a shaft sleeve (200). Meanwhile, under the action of the clamping mechanism, jaw pieces (300) moving to each other and playing a clamping effect are connected to side walls of the core shaft (100) and the shaft sleeve (200). Additionally, a plurality of suture needles (400) distributed in a staggered manner are respectively arranged at opposite ends of the two jaw pieces (300), and meshing teeth (301) for accommodating the suture needles (400) are arranged on the jaw pieces (300). Under the action of the clamping mechanism, the two jaw pieces (300) can be held with one hand, so that the two jaw pieces (300) can only be brought close to each other to clamp a wound. The hemostatic clip has a compact and reasonable structure, is convenient to operate, can be quickly operated with one hand during closing and opening in hemostasis, achieves tighter clamping during closing, and cooperates with the suture needles (400) and the meshing teeth (301) to achieve temporary suture and hemostasis of the wound, thereby greatly improving the hemostatic effect. Meanwhile, when opening the hemostatic clip, it is only necessary to rotate a rotating part (500) to quickly open the hemostatic clip, thereby greatly improving the medical efficiency during subsequent treatment. The hemostatic clip has very strong practicability.

Description

Clamping mechanism, hemostatic clip including the clamping mechanism, and method of using the same Technical Field

[0001] The present invention relates to the technical field of hemostatic clips, in particular to a clamping mechanism, a hemostatic clip comprising the clamping mechanism and a use method thereof. Background Art

[0002] In modern warfare, combatants often suffer various injuries due to the complex and ever-changing battlefield environment. These injuries are generally caused by cuts on the shoulder and neck or by bullets that cut the skin, resulting in heavy bleeding. The wounds of combat injuries are usually deep and the amount of bleeding is large. Severe bleeding caused by trauma also often occurs. However, wounds cannot be sutured immediately in field conditions, so the hemostatic effect of the wound is poor. Bleeding that is difficult to effectively stop often becomes a difficult problem in the treatment of combat injuries. Therefore, it is very necessary to design a hemostatic clip that can effectively stop bleeding in emergency treatment environments.

[0003] To this end, we propose a clamping mechanism, a hemostatic clip comprising the clamping mechanism, and a method of using the same. Technical issues

[0004] The wounds of combat injuries are usually deep and the amount of bleeding is large. Severe bleeding caused by trauma also often occurs. However, in a field environment, the wound cannot be sutured immediately, so the wound hemostasis effect is poor. The bleeding that is difficult to stop effectively often becomes a difficult problem in the treatment of combat injuries. Technical Solutions

[0005] A clamping mechanism acts on a core shaft and a sleeve that are movably nested with each other to control the mutual clamping, comprising:

[0006] A clamping member is radially slidably connected to a movable cavity provided on the core shaft, and is provided with outwardly extending ratchet teeth for engaging with internal teeth provided on the sleeve;

[0007] A spring is located between the movable cavity and the clamping piece, and is used to lift the clamping piece and force the sleeve to rotate unilaterally;

[0008] The rotating part is rotatably connected to the core shaft, and the rotating part is connected to a pin extending into the clamping member. The clamping member is provided with a pin connecting part that is inclined and corresponds to the pin, and the clamping member is driven to move radially as the pin rotates.

[0009] The clamping mechanism according to claim 1, wherein the clamping member comprises:

[0010] The sliding part is arranged in the movable cavity.

[0011] The spring connecting portion is used to accommodate the spring and limit the spring.

[0012] Furthermore, the rotating part is rotatably connected to the raised part provided on the end of the core shaft, and a tightening part is provided between the rotating part and the raised part. The rotating part is provided with a hollow part that cooperates with the tightening part.

[0013] Furthermore, anti-slip grooves are provided on the outer edge of the rotating part, and a pin hole corresponding to the pin shaft is opened on the rotating part.

[0014] A hemostatic clip comprises the above-mentioned clamping mechanism.

[0015] Furthermore, the side walls of the core shaft and the sleeve are connected with pliers that move relatively and have a clamping effect, and the opposite ends of the two pliers are respectively provided with multiple staggered suture needles, and the pliers are provided with meshing teeth for accommodating the suture needles.

[0016] Furthermore, the pliers connected to the core shaft are located on one side of the core shaft, and the pliers connected to the sleeve are located on the side wall of the sleeve. The pliers are 40-60 mm long, and are covered with at least 2 suture needles every 10 mm to ensure suture density.

[0017] Furthermore, the meshing teeth adopt a non-through rectangular groove structure.

[0018] Furthermore, the suture needle is a medical suture needle, and its shapes include straight needle, round needle and angle needle, and the exposed length of the suture needle 400 is maintained at 3.5 mm.

[0019] A method for using a hemostatic clip, comprising:

[0020] S1. When closing the hemostatic clamp, keep the puncture needle 1-2 cm away from the wound edge; hold the two blades with one hand toward the wound and clamp them tightly. At this time, the ratchet teeth press against the inner teeth under the action of the spring, so that the blades can only rotate in the clamping direction to prevent reversal. With the cooperation of the blades, suture needle and meshing teeth, the wound area is quickly clamped to achieve rapid hemostasis.

[0021] S2. When the hemostatic clamp needs to be opened, the rotating part is rotated and the pin will slide on the pin connecting part. Since the pin connecting part is inclined, as the pin rotates, the clamping part will naturally move along the radial direction of the core shaft toward the core shaft, thereby disengaging the ratchet and the inner teeth. At this time, the hemostatic clamp can be opened smoothly. Beneficial effects

[0022] The present invention has a compact and reasonable structure and is easy to operate. It can be quickly operated with one hand when closing and opening for hemostasis. At the same time, it clamps more tightly when closed, and cooperates with the suture needle and the meshing teeth to achieve temporary suture and hemostasis of the wound, which greatly improves the hemostasis effect. At the same time, when opening the hemostatic clamp, only the rotating part needs to be rotated to quickly open the hemostatic clamp, which greatly improves medical efficiency in subsequent treatment and has strong practicality.

[0023] At the same time, the present invention also has the following advantages:

[0024] (1) When the hemostatic clamp is closed, hold the two blades toward the wound and clamp them tightly. At this time, the ratchet teeth press against the inner teeth under the action of the spring, so that the blades can only rotate in the clamping direction to prevent reversal. With the cooperation of the blades, suture needle and meshing teeth, the wound area is quickly clamped, thereby achieving rapid hemostasis.

[0025] (2) By bringing the two forceps closer together, the suture needle can be driven to engage with the meshing teeth, and the patient's wound can be tightly closed, thereby achieving the effect of hemostasis.

[0026] (3) When the hemostatic clamp needs to be opened, the rotating part is rotated and the pin will slide on the pin connection part. Since the pin connection part is inclined, as the pin rotates, the clamping mechanism will naturally move along the radial direction of the core shaft toward the core shaft, thereby disengaging the ratchet and the inner teeth. At this time, the hemostatic clamp can be opened smoothly.

[0027] (4) The clamping mechanism in this embodiment has a simple structure and can control unidirectional rotation. In actual use, by adding respective connecting parts to the core shaft and the sleeve, the two connecting parts can be infinitely close to each other, thereby achieving a clamping effect and also enabling rapid disengagement. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is a schematic structural diagram of the present invention.

[0029] FIG2 is an exploded view of the present invention.

[0030] FIG3 is a top view of FIG2 .

[0031] FIG4 is a cross-sectional view of the AA section in FIG3 .

[0032] FIG5 is a schematic structural diagram of the clamping mechanism of the present invention.

[0033] FIG6 is a schematic structural diagram of the rotating part of the present invention. Modes for Carrying Out the Invention

[0034] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0035] As shown in FIG. 1 to FIG. 6 , this embodiment discloses a clamping mechanism, a hemostatic clip including the clamping mechanism, and a method for using the hemostatic clip.

[0036] The clamping mechanism can control the mutually movable nested core shaft 100 and sleeve 200 to be quickly clamped and also quickly opened, thereby improving the clamping efficiency and making the operation more convenient and efficient.

[0037] Example 1

[0038] As shown in Figures 2 to 5, this embodiment discloses a clamping mechanism, which includes a clamping member 700, a spring 800 and a rotating part 500, which controls the core shaft 100 and the sleeve 200 to clamp each other, that is, the core shaft 100 and the sleeve 200 can only rotate to one side.

[0039] The clamping member 700 is radially slidably connected to the movable cavity 101 provided on the core shaft 100. The clamping member 700 is provided with outwardly extending ratchet teeth 701 for engaging with the internal teeth 201 provided on the sleeve 200.

[0040] The spring 800 is located between the movable cavity 101 and the clamping member 700 and is used to push up the clamping member 700 to force the sleeve 200 to rotate unilaterally;

[0041] The rotating part 500 is rotatably connected to the core shaft 100. The rotating part 500 is connected to a pin shaft 600 extending into the clamping member 700, and the clamping member 700 is provided with a pin shaft connection part 704 which is arranged obliquely corresponding to the pin shaft 600. As the pin shaft 600 rotates, the clamping member 700 is driven to move radially. When the clamping member 700 moves upward along the active cavity 101, the clamping effect can be achieved. When the clamping member 700 moves downward along the active cavity 101, the ratchet 701 is disengaged from the inner tooth 201, and the contact clamping effect is achieved at this time.

[0042] As shown in FIG5 , the clamping member 700 further includes a sliding portion 702 and a spring connecting portion 703 ;

[0043] The sliding portion 702 is slidably disposed in the active cavity 101 to improve movement stability;

[0044] The spring connecting portion 703 is used to accommodate the spring 800 and limit the spring 800 .

[0045] As shown in Figure 2, the rotating part 500 is rotatably connected to the raised part set at the end of the core shaft 100, and a tightening part 900 is also set between the rotating part 500 and the raised part. A hollow part 502 is provided on the rotating part 500 to cooperate with the tightening part 900. At the same time, anti-slip grooves are provided on the outer edge of the rotating part 500, and a pin hole 501 corresponding to the pin shaft 600 is provided on the rotating part 500.

[0046] The clamping mechanism in this embodiment has a simple structure and can control unidirectional rotation. In actual use, by adding respective connecting parts to the core shaft 100 and the sleeve 200, the two connecting parts can be infinitely close to each other, thereby achieving a clamping effect and also enabling rapid disengagement.

[0047] Example 2

[0048] As shown in Figures 1 to 4, this embodiment discloses a hemostatic clip, which includes the clamping mechanism of Example 1. At the same time, the side walls of the core shaft 100 and the sleeve 200 are connected to the clamping blades 300 that move relative to each other and have a clamping effect. The opposite ends of the two clamping blades 300 are respectively provided with a plurality of staggered suture needles 400, and the clamping blades 300 are provided with meshing teeth 301 for accommodating the suture needles 400.

[0049] In this embodiment, as shown in FIG1 , the meshing teeth 301 adopt a non-penetrating rectangular groove structure design, which can reduce blood leakage after clamping the wound. At the same time, the rectangular groove design is adopted for one purpose to provide space for the puncture needle after closing, and the second purpose is to provide space for the surrounding tissues of the puncture after clamping and puncturing.

[0050] The two pliers blades 300 are provided with anti-skid stripes on opposite sides to prevent slipping.

[0051] In this embodiment, the pliers 300 connected to the core shaft 100 is located on one side of the core shaft 100 , and the pliers 300 connected to the sleeve 200 is located on the side wall of the sleeve 200 to avoid interference between the two pliers 300 .

[0052] By bringing the two forceps blades 300 closer to each other, the suture needle 400 can be driven to engage with the meshing teeth 301, and the patient's wound can be tightly closed, thereby achieving a hemostatic effect.

[0053] At the same time, in this embodiment, the length of the left and right clamps 300 is maintained at 40mm-60mm, and every 10mm length is covered with at least 2 suture needles 400 to ensure the suture density, which can basically fully cover the wound size of the shoulder and neck. In special circumstances where the wound is long, multiple hemostatic clips can be used to close the wound and stop bleeding.

[0054] In this embodiment, the suture needle 400 is a medical suture needle, and its shapes include straight needle, round needle and angle needle. The exposed length of the suture needle 400 is maintained at 3.5 mm, and the suture needles 400 are arranged alternately. After the forceps 300 clamp the tissue, the suture needle 400 can play the role of temporarily suturing the wound to the greatest extent and effectively prevent bleeding.

[0055] Under the action of the spring 800 of the clamping mechanism, the ratchet 701 can always engage with the inner teeth 201, so that the two pliers 300 can only be clamped close to each other, limiting the two pliers 300 from moving away from each other and affecting the hemostasis effect. This design can achieve rapid clamping and hemostasis with one hand, thereby improving the hemostasis efficiency.

[0056] As shown in FIG1-FIG4 and FIG6, another improvement in this embodiment is the rotating portion 500. The rotating portion 500 can drive the clamping member 700 to separate from the inner teeth 201, thereby separating the two forceps blades 300 and enabling the reuse of the hemostatic clamp.

[0057] When it is necessary to release the engagement between the ratchet 701 and the inner teeth 201, the pin 600 will slide on the pin connecting portion 704 by rotating the rotating portion 500. Since the pin connecting portion 704 is inclined, as the pin 600 rotates, the clamping member 700 will naturally move along the radial direction of the core shaft 100 toward the core shaft 100, thereby disengaging the ratchet 701 from the inner teeth 201. At this time, the two pliers 300 can be opened. This method can achieve rapid opening and can be operated with one hand, thereby improving operating efficiency.

[0058] Example 3

[0059] This embodiment discloses a method for using a hemostatic clip, which includes two methods of using the hemostatic clip: closing the hemostatic clip and opening the hemostatic clip.

[0060] S1. When the hemostatic clamp is closed, keep the puncture needle 1-2 cm away from the edge of the wound, perform puncture and clamping actions, hold the two clamps 300 with one hand towards the wound position and clamp them tightly. At this time, the ratchet 701 presses against the inner teeth 201 under the action of the spring 800, so that the clamps 300 can only rotate in the clamping direction to prevent reversal. With the cooperation of the clamps 300, the suture needle 400 and the meshing teeth 301, the wound area is quickly clamped, thereby achieving rapid hemostasis.

[0061] S2. When the hemostatic clip needs to be opened, the rotating part 500 is rotated, and the pin 600 will slide on the pin connecting part 704. Since the pin connecting part 704 is set at an angle, as the pin 600 rotates, the clamping part 700 will naturally move along the radial direction of the core shaft 100 toward the core shaft 100, thereby disengaging the ratchet 701 from the inner teeth 201. At this time, the hemostatic clip can be smoothly opened.

[0062] The present invention can be quickly operated with one hand when closing or opening for hemostasis, and can clamp more tightly when closed. It cooperates with the suture needle 400 and the meshing teeth 301 to achieve temporary suture and hemostasis of the wound, greatly improving the hemostasis effect. At the same time, when opening the hemostatic clamp, only the rotating part 500 needs to be rotated to quickly open the hemostatic clamp, which greatly improves medical efficiency in subsequent treatment and has strong practicality.

[0063] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any modifications may be made within the scope of protection of the present invention.

Claims

1. A clamping mechanism, which acts on a core shaft (100) and a sleeve (200) that are movably nested with each other to control the mutual clamping, characterized in that: include: A clamping member (700) is slidably connected in a radial direction in a movable cavity (101) provided on the core shaft (100); the clamping member (700) is provided with ratchet teeth (701) extending outwards and used for engaging with internal teeth (201) provided on the shaft sleeve (200); A spring (800) is located between the movable chamber (101) and the clamping member (700) and is used to lift the clamping member (700) to force the shaft sleeve (200) to rotate on one side; A rotating portion (500) is rotatably connected to the core shaft (100), the rotating portion (500) is connected to a pin shaft (600) extending into the clamping member (700), and the clamping member (700) is provided with a pin shaft connecting portion (704) arranged obliquely corresponding to the pin shaft (600), and the clamping member (700) is driven to move radially as the pin shaft (600) rotates.

2. A clamping mechanism according to claim 1, characterized in that: The clamping member (700) comprises: A sliding portion (702) which is slidably disposed in the active cavity (101); The spring connecting portion (703) is used to accommodate the spring (800) and limit the spring (800).

3. A clamping mechanism according to claim 2, characterized in that: The rotating part (500) is rotatably connected to a raised part provided at the end of the core shaft (100), and a tensioning part (900) is provided between the rotating part (500) and the raised part. The rotating part (500) is provided with a hollow part (502) that cooperates with the tensioning part (900).

4. A clamping mechanism according to claim 3, characterized in that: The outer edge of the rotating part (500) is provided with anti-slip grooves, and the rotating part (500) is provided with a pin hole (501) corresponding to the pin shaft (600).

5. A hemostatic clip, characterized in that: It comprises the clamping mechanism of claim 4.

6. A hemostatic clip according to claim 5, characterized in that: The side walls of the core shaft (100) and the shaft sleeve (200) are connected with relatively movable clamps (300) having a clamping effect, and opposite ends of the two clamps (300) are respectively provided with a plurality of staggered suture needles (400), and the clamps (300) are provided with meshing teeth (301) for accommodating the suture needles (400).

7. A hemostatic clip according to claim 6, characterized in that: The clamp piece (300) connected to the core shaft (100) is located on one side of the core shaft (100), and the clamp piece (300) connected to the shaft sleeve (200) is located on the side wall of the shaft sleeve (200). The clamp piece (300) is 40-60 mm in length, and at least two suture needles (400) are covered on every 10 mm of length to ensure suture density.

8. A hemostatic clip according to claim 6, characterized in that: The meshing teeth (301) adopt a non-penetrating rectangular groove structure.

9. A hemostatic clip according to claim 6, characterized in that: The suture needle (400) is a medical suture needle, and its shapes include straight needle, round needle and angle needle. The exposed length of the suture needle 400 is maintained at 3.5 mm.

10. The method for using a hemostatic clip according to claim 6, characterized in that: include: S1. When the hemostatic clamp is closed, the puncture needle is kept 1-2 cm away from the edge of the wound; the two clamps (300) are held in one hand toward the wound and clamped tightly. At this time, the ratchet (701) presses against the inner teeth (201) under the action of the spring (800), so that the clamp (300) can only rotate in the clamping direction to prevent reversal. With the cooperation of the clamp (300), the suture needle (400) and the meshing teeth (301), the wound site is quickly clamped, thereby achieving rapid hemostasis; S2. When the hemostatic clip needs to be opened, the rotating part (500) is rotated, and the pin shaft (600) slides on the pin shaft connecting part (704). Since the pin shaft connecting part (704) is inclined, as the pin shaft (600) rotates, the clamping member (700) will naturally move along the radial direction of the core shaft (100) toward the core shaft (100), thereby disengaging the ratchet (701) from the inner teeth (201). At this time, the hemostatic clip can be opened smoothly.

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