CN117547323B - Clamping mechanism, hemostatic clip including the clamping mechanism and use method thereof - Google Patents

Abstract

The hemostatic clamp comprises a clamping mechanism for controlling the clamping of a mandrel and a shaft sleeve, wherein clamp sheets which relatively move and have a clamping effect are connected to the side walls of the mandrel and the shaft sleeve under the action of the clamping mechanism, a plurality of suture needles which are distributed in a staggered manner are respectively arranged at opposite ends of the two clamp sheets, and meshing teeth for accommodating the suture needles are arranged on the clamp sheets; under the action of the clamping mechanism, the two clamp pieces can be held by one hand, so that the two clamp pieces can only be close to each other to clamp the wound. The hemostatic clamp has the advantages that the hemostatic clamp is compact and reasonable in structure and convenient to operate, can be rapidly operated by one hand during hemostatic closing and opening, is clamped more tightly during closing, is matched with a suture needle and meshing teeth to realize temporary suture hemostasis of wounds, greatly improves hemostatic effect, can be rapidly opened only by rotating the rotating part during opening of the hemostatic clamp, greatly improves medical efficiency during subsequent treatment, and has strong practicability.

Description

Clamping mechanism, hemostatic clip including the clamping mechanism and use method thereof

Technical Field

The 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 technique

In modern warfare, combatants' bodies often suffer from various injuries due to the complex and changeable battlefield environment, generally for cuts on the shoulder and neck or heavy bleeding caused by skin cuts when bullets pass through. The wounds of combat trauma are usually deep and the amount of bleeding is large. Severe bleeding caused by trauma also often occurs. However, it is impossible to suture the wounds immediately in the field environment, so the hemostasis effect of the wounds is poor. Bleeding that is difficult to effectively stop often becomes a thorny problem in the treatment of combat injuries. Therefore, it is very necessary to design a hemostatic clip that can effectively stop bleeding in an emergency treatment environment.

To this end, we propose a clamping mechanism, a hemostatic clip comprising the clamping mechanism, and a method of using the same.

Summary of the invention

In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a clamping mechanism, a hemostatic clip including the clamping mechanism, and a method of using the clamping mechanism, which can be quickly operated with one hand and clamp more tightly when closed, and cooperate with a suture needle and meshing teeth to achieve temporary suturing and hemostasis of the wound, greatly improving the hemostatic effect.

The technical solution adopted by the present invention is as follows:

A clamping mechanism acts on a core shaft and a sleeve that are movably nested with each other to control them to clamp each other, comprising:

A clamping piece is radially slidably connected in a movable cavity provided on the core shaft, and the clamping piece is provided with ratchet teeth extending outwards for engaging with internal teeth provided on the shaft sleeve;

A spring, located between the movable cavity and the clamping piece, is used to lift the clamping piece and force the sleeve to rotate on one side;

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

A clamping mechanism according to claim 1, wherein the clamping member comprises:

The sliding part is arranged in the movable cavity.

The spring connecting part is used to accommodate the spring and limit the spring.

Furthermore, the rotating part is rotatably connected to a raised part arranged at the end of the core shaft, and a tightening part is arranged between the rotating part and the raised part, and a hollow part cooperating with the tightening part is opened on the rotating part.

Furthermore, the outer edge of the rotating part is provided with anti-slip grooves, and the rotating part is provided with a pin hole corresponding to the pin shaft.

A hemostatic clip comprises the above-mentioned clamping mechanism.

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

Furthermore, the clamp connected to the core shaft is located on one side of the core shaft, the clamp connected to the sleeve is located on the side wall of the sleeve, and the clamp length is 40-60mm, and every 10mm length is covered with at least 2 suture needles to ensure the suture density.

Furthermore, the meshing teeth adopt a non-penetrating rectangular groove structure.

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.

A method for using a hemostatic clip, comprising:

S1. When the hemostatic clamp is closed, keep the puncture needle 1-2cm away from the edge of the wound; hold the two clamps with one hand towards 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 clamps can only rotate in the clamping direction to prevent reversal. With the cooperation of the clamps, suture needle and meshing teeth, the wound area is clamped quickly to achieve rapid hemostasis.

S2. When the hemostatic clip 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, so that the ratchet and the inner teeth are disengaged, and the hemostatic clip can be opened smoothly.

The beneficial effects of the present invention are as follows:

The present invention has a compact and reasonable structure and is easy to operate. It can be quickly operated with one hand during hemostasis closing and opening. At the same time, it can be clamped more tightly during closing, and temporary suturing and hemostasis of the wound can be achieved in conjunction with the suture needle and the meshing teeth, 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 the medical efficiency during subsequent treatment and has strong practicality.

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

(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 clamped quickly, thereby achieving rapid hemostasis.

(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.

(3) When the hemostatic clip 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 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 clip can be opened smoothly.

(4) The clamping mechanism in this embodiment has a simple structure and can control unidirectional rotation. In actual use, the core shaft and the sleeve are provided with respective connecting parts, so that 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

FIG1 is a schematic structural diagram of the present invention.

FIG. 2 is an exploded view of the present invention.

FIG. 3 is a top view of FIG. 2 .

FIG4 is a cross-sectional view of the A-A section in FIG3.

FIG. 5 is a schematic structural diagram of the clamping mechanism of the present invention.

FIG. 6 is a schematic structural diagram of the rotating part of the present invention.

Wherein: 100, mandrel; 200, sleeve; 300, forceps; 400, suture needle; 500, rotating part; 600, pin; 700, clamping part; 800, spring; 900, tensioning part;

101, activity cavity;

201, internal teeth 201;

301, meshing teeth; 501, pin hole; 502, hollow portion;

701, ratchet; 702, sliding portion; 703, spring connecting portion; 704, pin connecting portion.

Detailed ways

The specific implementation of the present invention is described below in conjunction with the accompanying drawings.

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.

The clamping mechanism can control the mutually movable and 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.

Example 1

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.

The clamping member 700 is radially slidably connected in the movable cavity 101 provided on the core shaft 100. The clamping member 700 is provided with ratchet teeth 701 extending outwards for engaging with the inner teeth 201 provided on the sleeve 200.

The spring 800 is located between the active cavity 101 and the clamping member 700 and is used to lift the clamping member 700 to force the sleeve 200 to rotate unilaterally;

The rotating part 500 is rotatably connected to the core shaft 100, and is connected to a pin shaft 600 extending into the clamping member 700, and is provided with a pin shaft connecting part 704 which is inclined corresponding to the pin shaft 600, and the clamping member 700 is driven to move radially with the rotation of the pin shaft 600. 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 a contact clamping effect is achieved at this time.

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

The sliding part 702 is slidably disposed in the active cavity 101 to improve the movement stability;

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

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 tensioning part 900 is also set between the rotating part 500 and the raised part. A hollow part 502 cooperating with the tensioning part 900 is opened on the rotating part 500, and anti-slip grooves are set on the outer edge of the rotating part 500. A pin hole 501 corresponding to the pin shaft 600 is opened on the rotating part 500.

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.

Example 2

As shown in FIGS. 1 to 4 , this embodiment discloses a hemostatic clip, which includes the clamping mechanism in Embodiment 1, and a clamp 300 that moves relatively and has a clamping effect is connected to the side walls of the core shaft 100 and the sleeve 200, and a plurality of staggered suture needles 400 are respectively arranged at opposite ends of the two clamps 300, and meshing teeth 301 for accommodating the suture needles 400 are arranged on the clamps 300;

In this embodiment, as shown in FIG. 1 , the meshing teeth 301 adopt a non-penetrating rectangular groove structure design, which can reduce blood seepage after clamping the wound. At the same time, the rectangular groove design is adopted. One purpose is to provide space for the puncture needle after closing, and the second is to provide space for the surrounding tissues of the puncture after clamping and puncturing.

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

In this embodiment, the pliers 300 connected to the mandrel 100 are located on one side of the mandrel 100 , and the pliers 300 connected to the sleeve 200 are located on the side wall of the sleeve 200 , so as to avoid interference between the two pliers 300 .

By bringing the two forceps 300 closer to each other, the suture needle 400 can be driven to engage with the meshing teeth 301, so that the wound of the patient can be tightly closed, thereby achieving a hemostatic effect.

At the same time, in this embodiment, the length of the left and right clamps 300 is maintained at 40mm-60mm, and at least 2 suture needles 400 are covered on every 10mm length to ensure the suture density, which can basically and completely 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.

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 stop bleeding.

Under the action of the clamping mechanism spring 800, the ratchet 701 can always be engaged with the inner tooth 201, so that the two forceps 300 can only be close to each other for clamping, limiting the two forceps 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.

As shown in FIGS. 1 to 4 and 6 , another improvement in this embodiment is the rotating portion 500 , which 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 clip.

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, the clamping member 700 will naturally move along the radial direction of the core shaft 100 toward the core shaft 100 as the pin 600 rotates, thereby disengaging the ratchet 701 from the inner teeth 201. At this time, the two pliers 300 can be opened. This method can achieve quick opening and can be operated with one hand, thereby improving operating efficiency.

Example 3

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.

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, hold the two clamp blades 300 with one hand towards the wound 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 clamp blade 300 can only rotate in the clamping direction to prevent reversal. With the cooperation of the clamp blade 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 600 will slide on the pin connecting part 704. Since the pin connecting part 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, so that the ratchet 701 is disengaged from the inner tooth 201, and the hemostatic clip can be opened smoothly at this time.

The present invention can be quickly operated with one hand when closing or opening for hemostasis, and can be clamped more tightly when closed, and cooperates with the suture needle 400 and the meshing teeth 301 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 500 needs to be rotated to quickly open the hemostatic clamp, which greatly improves the medical efficiency in subsequent treatment and has strong practicality.

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 form of modification may be made within the scope of protection of the present invention.

Claims (7)

1. A hemostatic clip, comprising a clamping mechanism, the clamping mechanism acting on a core shaft (100) and a sleeve (200) that are movably nested with each other to control the mutual clamping, characterized in that it also includes: 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 active cavity (101) and the clamping member (700) and is used to lift the clamping member (700) to force the shaft sleeve (200) to rotate unilaterally; 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) which is arranged obliquely and corresponds to the pin shaft (600), and the clamping member (700) is driven to move radially as the pin shaft (600) rotates; The side walls of the core shaft (100) and the shaft sleeve (200) are connected with clamps (300) that move relatively and have 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). 2. A hemostatic clip 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 hemostatic clip as described in claim 2, characterized in that: the rotating part (500) is rotatably connected to a raised part arranged at the end of the core shaft (100), and a tensioning part (900) is also arranged between the rotating part (500) and the raised part, and a hollow part (502) cooperating with the tensioning part (900) is opened on the rotating part (500). 4. A hemostatic clip according to claim 3, characterized in that: an anti-slip pattern is arranged on the outer edge of the rotating part (500), and a pin hole (501) corresponding to the pin shaft (600) is opened on the rotating part (500). 5. A hemostatic clip as claimed in claim 1, characterized in that: the clamp (300) connected to the core shaft (100) is located on one side of the core shaft (100), the clamp (300) connected to the sleeve (200) is located on the side wall of the sleeve (200), and the clamp (300) is 40-60 mm long, and at least 2 suture needles (400) are covered on every 10 mm length to ensure suture density. 6. A hemostatic clip according to claim 1, characterized in that: the meshing teeth (301) adopt a non-penetrating rectangular groove structure. 7. A hemostatic clip according to claim 1, characterized in that: the suture needle (400) is a medical suture needle, and its shape includes a straight needle, a round needle and an angle needle, and the exposed length of the suture needle (400) is maintained at 3.5 mm.