技术领域technical field
本实用新型涉及一种一次性可降解止血夹，属于医疗器械技术领域。The utility model relates to a disposable degradable hemostatic clamp, which belongs to the technical field of medical instruments.
背景技术Background technique
腹腔镜手术开始于上世纪80年代，我国于九十年代初引进这种微创手术。手术临床上较多采用止血夹止血，操作相对容易，止血效果较好。较为常用的止血夹材料主要是非降解金属材料止血夹和可降解高分子止血夹。这两类止血夹在临床上都有使用，但都存在一定问题。Laparoscopic surgery began in the 1980s, and my country introduced this minimally invasive surgery in the early 1990s. Hemostasis clips are often used in clinical surgery for hemostasis, which is relatively easy to operate and has a good hemostatic effect. The more commonly used hemostatic clip materials are mainly non-degradable metal material hemostatic clips and degradable polymer hemostatic clips. These two types of hemostatic clips are used clinically, but there are certain problems.
钛合金止血夹是目前腹腔镜手术临床常用的金属止血夹，虽然对人体毒性较小，但其永久留存体内会带来离子溶出炎症、干扰影像学诊断以及造成患者心理负担等问题。可吸收高分子止血夹虽然可体内降解，但高分子材料的力学强度不足，造成夹闭力维持时间有限，且产品成本过高。Titanium alloy hemostatic clips are currently commonly used metal hemostatic clips in laparoscopic surgery. Although they are less toxic to the human body, their permanent retention in the body will cause ion dissolution inflammation, interfere with imaging diagnosis, and cause psychological burden to patients. Although the absorbable polymer hemostatic clip can be degraded in vivo, the mechanical strength of the polymer material is insufficient, resulting in a limited duration of clamping force and high product cost.
另外，现在对于可降解止血夹的改进基本都集中于对止血夹的材料进行改进，缺少与可降解的材料结合使用的结构设计。In addition, current improvements to degradable hemostatic clips basically focus on improving the material of the hemostatic clip, lacking a structural design for use in combination with degradable materials.
发明内容Contents of the invention
本实用新型所要解决的技术问题在于提供一种一次性可降解止血夹。The technical problem to be solved by the utility model is to provide a disposable degradable hemostatic clip.
为了实现上述技术目的，本实用新型采用下述技术方案：In order to achieve the above-mentioned technical purpose, the utility model adopts the following technical solutions:
一种一次性可降解止血夹，包括两个可降解夹片、牵拉支架、钩柄和可降解套管，两个可降解夹片分别设置在所述牵拉支架的两个前端部分上；所述牵拉支架的底部与钩柄的前端钩接；所述牵拉支架和所述钩柄组装在所述可降解套管内。A disposable degradable hemostatic clip, comprising two degradable clips, a pulling bracket, a hook handle and a degradable sleeve, the two degradable clips are respectively arranged on the two front end parts of the pulling bracket ; the bottom of the pulling bracket is hooked with the front end of the hook handle; the pulling bracket and the hook handle are assembled in the degradable sleeve.
其中较优地，所述可降解夹片和所述可降解套管的材料是PLLA，所使用的PLLA材料的分子量大于22万。Preferably, the material of the degradable clip and the degradable sleeve is PLLA, and the molecular weight of the PLLA material used is greater than 220,000.
其中较优地，两个所述可降解夹片用于夹持的一侧分别设置有用于容纳牵拉支架的前端部分的长槽；所述长槽中设置有与所述可降解夹片一体成型的连接柱；所述牵拉支架的前端部分设置有对应的连接孔。Preferably, one side of the two degradable clips for clamping is respectively provided with a long groove for accommodating the front end of the pulling bracket; A formed connecting column; the front part of the pulling bracket is provided with a corresponding connecting hole.
其中较优地，所述长槽的深度与所述牵拉支架的厚度相等。Wherein preferably, the depth of the long groove is equal to the thickness of the stretching bracket.
其中较优地，所述牵拉支架具有左右对称的两部分，牵拉支架的底部弯曲成连接钩；左侧支架和右侧支架分别从牵拉支架的底部向外侧弯曲成弧形，然后回到中部交叉后继续向上方延伸，形成用于嵌入长槽中的前端部分。Preferably, the pulling bracket has two symmetrical parts. The bottom of the pulling bracket is bent into a connecting hook; After crossing at the middle part, it continues to extend upwards to form a front end part for being embedded in a long groove.
其中较优地，所述左侧支架和所述右侧支架在中部交叉后向前端部分延伸的过程中还分别形成有一截向外突出的弧形，所述弧形的最外侧与所述可降解夹片的外侧的侧壁具有等高的平面。Preferably, the left side bracket and the right side bracket respectively form an outwardly protruding arc in the process of extending toward the front end after the middle part intersects, and the outermost side of the arc is connected to the movable The outer sidewall of the degradable clip has a plane of equal height.
其中较优地，所述可降解套管的内壁上设置有限位槽；所述可降解夹片靠近所述可降解套管的外侧侧壁上设置有突起的限位条。Preferably, a limiting groove is provided on the inner wall of the degradable sleeve; a protruding limiting strip is provided on the outer side wall of the degradable clip close to the degradable sleeve.
其中较优地，所述一次性可降解止血夹还包括卡簧和第二套管；所述卡簧具有多个连接爪，每个连接爪依次穿过对应设置在所述第二套管和所述可降解套管上的开孔，将所述可降解套管和所述第二套管连接在一起。Preferably, the disposable degradable hemostatic clip also includes a snap ring and a second sleeve; the snap ring has a plurality of connecting claws, and each connecting claw passes through the second sleeve and the second sleeve in turn. The opening on the degradable sleeve connects the degradable sleeve and the second sleeve together.
其中较优地，所述钩柄穿过所述卡簧的中心孔后与控制线连接。Wherein preferably, the hook handle is connected with the control wire after passing through the central hole of the snap spring.
其中较优地，所述第二套管的后端与弹簧管固定。Wherein preferably, the rear end of the second sleeve is fixed to the spring tube.
本实用新型所提供的一次性可降解止血夹，通过使用可降解材料制作可降解夹片和可降解套管，使得止血夹滞留在体内的部分均是可降解的。同时，该一次性可降解止血夹，还提供了与可降解部分结合使用的金属零件，在实现止血夹释放的同时，提高了可降解止血夹的机械强度，使得可降解止血夹的实用性得到大幅度提升。The disposable degradable hemostatic clip provided by the utility model uses degradable materials to make degradable clips and degradable sleeves, so that the part of the hemostatic clip retained in the body is degradable. At the same time, the disposable degradable hemostatic clip also provides metal parts used in combination with the degradable part, which improves the mechanical strength of the degradable hemostatic clip while realizing the release of the hemostatic clip, so that the practicability of the degradable hemostatic clip is improved. raised dramatically.
附图说明Description of drawings
图1是本实用新型所提供的一次性可降解止血夹的分解示意图；Fig. 1 is an exploded schematic diagram of the disposable degradable hemostatic clip provided by the utility model;
图2A和图2B分别是可降解夹片的主视示意图和侧视示意图；Fig. 2A and Fig. 2B are respectively the schematic front view and the schematic side view of the degradable clip;
图3是牵拉支架的结构示意图；Fig. 3 is a structural schematic diagram of a pulling bracket;
图4是钩柄的结构示意图；Fig. 4 is the structural representation of hook handle;
图5A和图5B分别是卡簧的俯视示意图和主视示意图；Fig. 5A and Fig. 5B are respectively the top view schematic diagram and the front schematic diagram of the retaining spring;
图6是组装后的一次性可降解止血夹的结构示意图；Figure 6 is a schematic structural view of the assembled disposable degradable hemostatic clip;
图7是可降解夹片闭合并锁死的状态示意图；Fig. 7 is a schematic diagram of the closed and locked state of the degradable clip;
图8是滞留在体内的可降解部分的结构示意图。Fig. 8 is a schematic diagram of the structure of the degradable part retained in the body.
具体实施方式Detailed ways
下面结合附图和具体的实施例对本实用新型的技术方案进行进一步地详细描述。The technical solutions of the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
本实用新型所提供的一次性可降解止血夹，采用可降解材料(如生物医用材料PLLA(左旋聚乳酸))与金属材料(例如，不锈钢材料)联合制成。上述一次性可降解止血夹滞留体内的夹子部分是采用可降解材料制成的，其他不滞留体内的零件可以采用金属材料制成，通过这些金属零件起到增强止血夹的机械强度的作用。The disposable degradable hemostatic clip provided by the utility model is jointly made of degradable materials (such as biomedical material PLLA (poly-L-lactic acid)) and metal materials (such as stainless steel materials). The clip part of the above-mentioned disposable degradable hemostatic clip staying in the body is made of degradable materials, and other parts not staying in the body can be made of metal materials, and these metal parts play a role in enhancing the mechanical strength of the hemostatic clip.
具体来说，如图1所示，本实用新型所提供的一次性可降解止血夹，包括两个可降解夹片1、牵拉支架2、钩柄3、可降解套管4、第二套管5、卡簧6及一些与控制手柄配套使用的其他配件。Specifically, as shown in Figure 1, the disposable degradable hemostatic clip provided by the utility model includes two degradable clips 1, a pulling bracket 2, a hook handle 3, a degradable sleeve 4, a second Sleeve pipe 5, jump ring 6 and some other accessories used in conjunction with the control handle.
其中，两个可降解夹片1和可降解套管4组成最后滞留体内的夹子部分(参见图8)，两者均使用可降解材料制成。例如，两者均可由PLLA(左旋聚乳酸)材料制成，PLLA材料是已经获得CFDA认可的一种广泛用于人体的可降解材料。在本实用新型中，制造可降解夹片1和可降解套管4所使用的PLLA材料的分子量在22万之上。通过加大分子量提高PLLA材料的机械强度，以保证在夹持软组织和血管时具有一定夹紧力。虽然加大分子量会延迟PLLA的完全降解时间，但是由于PLLA材料最终会完全降解，从而可以解决目前部分内窥镜治疗时，由于钛夹等不能降解，造成不可降解材料滞留体内引起其他不良反应的难题。当然，两个可降解夹片1和可降解套管4也可以使用其他的可供生物医学使用的可降解材料制成。Among them, the two degradable clips 1 and the degradable sleeve 4 constitute the clip part (see FIG. 8 ) that is finally retained in the body, both of which are made of degradable materials. For example, both can be made of PLLA (poly-L-lactic acid) material, which is a degradable material that has been approved by the CFDA and is widely used in the human body. In the present utility model, the molecular weight of the PLLA material used to manufacture the degradable clip 1 and the degradable sleeve 4 is above 220,000. The mechanical strength of the PLLA material is improved by increasing the molecular weight to ensure a certain clamping force when clamping soft tissues and blood vessels. Although increasing the molecular weight will delay the complete degradation time of PLLA, because the PLLA material will eventually degrade completely, it can solve the problem of other adverse reactions caused by non-degradable materials remaining in the body due to the non-degradable titanium clips during some endoscopic treatments. problem. Of course, the two degradable clips 1 and the degradable sleeve 4 can also be made of other biomedical degradable materials.
本实用新型提供的两个可降解夹片1具有完全相同或相互对称的结构，当两个可降解夹片1锁死在可降解套管4的内部时，可以将目标软组织或目标血管夹紧在两个可降解夹片1之间。The two degradable clips 1 provided by the utility model have identical or mutually symmetrical structures. When the two degradable clips 1 are locked inside the degradable sleeve 4, the target soft tissue or target blood vessel can be clipped Tightly between two degradable clips 1.
如图2A和2B所示，在两个可降解夹片1相向设置的一侧(即用于夹持的一侧)分别设置有用于容纳牵拉支架2的前端部分2a的长槽1a；长槽1a的深度与牵拉支架2的厚度相等，从而保证牵拉支架2卡入上述长槽1a后，牵拉支架2和长槽1a的相邻部分形成平滑的表面(参见图6)，避免对目标软组织或目标血管造成意外损伤。在长槽1a中设置有突起的连接柱1b，连接柱1b和可降解夹片1一体成型，连接柱1b用于与设置在止血夹支架2前端部分2a中的连接孔2b配合，实现牵拉支架2和可降解夹片1的连接。在可降解夹片1的外侧(靠近可降解套管4的一侧)的侧壁上设置有向外凸出的限位条1c，用于与设置在可降解套管4内壁上的限位槽4a配合，实现夹子部分的锁死功能。As shown in Figures 2A and 2B, a long groove 1a for accommodating the front end portion 2a of the pulling bracket 2 is respectively provided on the opposite sides of the two degradable clips 1 (that is, the side for clamping); The depth of the groove 1a is equal to the thickness of the pulling bracket 2, so that after the pulling bracket 2 snaps into the above-mentioned long groove 1a, the adjacent parts of the pulling bracket 2 and the long groove 1a form a smooth surface (see Figure 6), avoiding Accidental injury to target soft tissue or target vessel. A protruding connecting column 1b is provided in the long groove 1a, the connecting column 1b and the degradable clip 1 are integrally formed, and the connecting column 1b is used to cooperate with the connecting hole 2b provided in the front part 2a of the hemostatic clip bracket 2 to realize pulling The connection between the bracket 2 and the degradable clip 1. On the side wall of the outer side of the degradable clip 1 (near the side of the degradable sleeve 4), an outwardly protruding limiting strip 1c is provided for matching with the inner wall of the degradable sleeve 4. The limit groove 4a cooperates to realize the locking function of the clip part.
可降解套管4是由可降解材料PLLA制成的一截圆管；在其内壁上设置有与其一体成型的限位槽4a。限位槽4a用于与设置在可降解夹片1的外侧侧壁上的限位条1c配合，实现锁死功能。如图7所示，通过牵拉支架2将可降解夹片1拉入可降解套管4内，限位条1c卡入限位槽4a内，实现可降解夹片1的锁死。可降解套管4的后端设置有减薄的腔壁，用于将第二套管5的前端插入其中。在可降解套管4后端减薄的腔壁上形成有一排等高的开孔，用于实现与第二套管5的连接。The degradable sleeve 4 is a round tube made of a degradable material PLLA; a limiting groove 4a integrally formed with it is provided on its inner wall. The limiting groove 4a is used to cooperate with the limiting strip 1c provided on the outer side wall of the degradable clip 1 to realize the locking function. As shown in FIG. 7 , the degradable clip 1 is pulled into the degradable sleeve 4 by pulling the bracket 2 , and the limiting strip 1 c is snapped into the limiting groove 4 a to realize locking of the degradable clip 1 . The rear end of the degradable sleeve 4 is provided with a thinned cavity wall for inserting the front end of the second sleeve 5 therein. A row of equal-height openings is formed on the thinned cavity wall at the rear end of the degradable sleeve 4 for connection with the second sleeve 5 .
下面对与上述可降解的夹子部分配合使用的其他零件进行介绍。其中，牵拉支架2、钩柄3、第二套管5以及卡簧6均可以由不锈钢材料制成。本实用新型通过给可降解夹片1提供由不锈钢材料制作的牵拉支架2和钩柄3，在给可降解夹片1提供结构支撑的同时，可以拉动可降解夹片1移动，从而实现两个可降解夹片1的闭合、锁死分离。Other parts used in conjunction with the above-mentioned degradable clip part are introduced below. Wherein, the pulling bracket 2, the hook handle 3, the second sleeve 5 and the snap ring 6 can all be made of stainless steel. The utility model provides the degradable clip 1 with a pulling bracket 2 and a hook handle 3 made of stainless steel, while providing structural support for the degradable clip 1, the degradable clip 1 can be pulled to move, thereby realizing two Closing and locking separation of two degradable clips 1.
如图3所示，牵拉支架2是由同一金属片经过扭曲变形后形成的一体式弹性支架，具有与数字8类似的外形。牵拉支架2具有左右对称的两部分，牵拉支架2的底部弯曲成连接钩2c；左侧支架和右侧支架分别从牵拉支架2的底部向外侧弯曲成弧形，然后回到中部交叉后继续向上方延伸，从而形成用于嵌入长槽1a中的前端部分2a。在牵拉支架2的前端部分2a中分别形成有连接孔2b，连接孔2b用于与连接柱1b配合，从而将两个可降解夹片1分别固定在牵拉支架2的两个前端部分上。此外，左侧支架和右侧支架在中部交叉后向前端部分延伸的过程中还分别形成有一截向外突出的弧形2d，当可降解夹片1安装在牵拉支架2的前端部分2a时，弧形2d的最外侧与可降解夹片1的外侧的侧壁具有大致等高的平面，从而使得在拉动牵拉支架2的过程中，可降解夹片1可以无障碍地进入可降解套管4中。As shown in FIG. 3 , the pulling bracket 2 is an integral elastic bracket formed by twisting and deforming the same metal sheet, and has a shape similar to that of the number 8 . The pulling bracket 2 has two symmetrical parts left and right, the bottom of the pulling bracket 2 is bent into a connecting hook 2c; the left side bracket and the right side bracket are respectively bent from the bottom of the pulling bracket 2 to the outside to form an arc, and then return to the middle to cross Then continue to extend upwards, thereby forming a front end portion 2a for being embedded in the long groove 1a. Connecting holes 2b are respectively formed in the front part 2a of the pulling bracket 2, and the connecting holes 2b are used to cooperate with the connecting posts 1b, so that the two degradable clips 1 are respectively fixed on the two front parts of the pulling bracket 2 . In addition, the left side bracket and the right side bracket also form an outwardly protruding arc 2d in the process of extending to the front part after the middle part crosses. When the degradable clip 1 is installed on the front part 2a of the pulling bracket 2 , the outermost side wall of the arc 2d and the outer side wall of the degradable clip 1 have a plane with approximately the same height, so that in the process of pulling the stent 2, the degradable clip 1 can enter the degradable clip without hindrance. casing 4.
如图4所示，钩柄3的前端是一个直径较大的端部，设置有与连接钩2c的钩形配合的钩形槽3a，通过将牵拉支架2底部的连接钩2c卡入钩柄3前端的钩形槽3a中，实现牵拉支架2和钩柄3的钩接。钩柄3的后端是一截圆柱形的连接杆3b，通过将控制线从钩柄3的尾端插入连接杆3b内固定，实现钩柄3和控制线的连接。As shown in Figure 4, the front end of the hook handle 3 is an end with a larger diameter, which is provided with a hook-shaped groove 3a that matches the hook shape of the connecting hook 2c, by snapping the connecting hook 2c at the bottom of the pulling bracket 2 into the hook In the hook-shaped groove 3a at the front end of the handle 3, the hooking of the pulling bracket 2 and the hook handle 3 is realized. The rear end of the hook handle 3 is a section of cylindrical connecting rod 3b, by inserting the control wire from the tail end of the hook handle 3 into the connecting rod 3b for fixing, realizing the connection between the hook handle 3 and the control wire.
第二套管5是一截圆管。第二套管5的前端加工出从外侧减薄的腔壁，第二套管5前端减薄腔壁的外径和可降解套管4的后端减薄腔壁的内径相等。在第二套管5前端的减薄腔壁中设置有一圈等高的开孔，设置在第二套管5前端的多个开孔与设置在可降解套管4的后端的多个开孔对应。The second sleeve pipe 5 is a section of circular pipe. The front end of the second sleeve 5 is processed with a cavity wall thinned from the outside, and the outer diameter of the thinned cavity wall at the front end of the second sleeve 5 is equal to the inner diameter of the thinned cavity wall at the rear end of the degradable sleeve 4 . A ring of equal-height openings is arranged in the thinned cavity wall at the front end of the second sleeve 5 , and a plurality of openings arranged at the front end of the second sleeve 5 are connected with a plurality of openings arranged at the rear end of the degradable sleeve 4 . corresponding to the hole.
图5所示的卡簧6由环部6a和与环部6a一体成型的多个连接爪6c组成。在环部6a的中心位置形成有中心孔6b，多个连接爪6c对称设置在环部6a的外周。通过将连接爪6c依次插入第二套管5和可降解套管4上对应设置的开孔中，实现第二套管5和可降解套管4的连接。在该实施例中，卡簧6设置有三个连接爪6c，在可降解套管4和第二套管5上分别设置有三个与连接爪6c对应的开孔。连接爪6c插入可降解套管4和第二套管5的顺序也可以与上述顺序相反，具体依照可降解套管4和第二套管5的结构决定。在连接可降解套管4和第二套管5时，先将两者插紧，然后将卡簧6的连接爪6c插入对应开孔中，完成两者的连接。当可降解套管4和第二套管5连接后，将钩柄3的后端从卡簧6的中心孔中穿过，并与控制线连接。中心孔6b的直径大于钩柄3后端的连接杆3b的直径，但小于钩柄3前端的直径。向后拉动钩柄3，当钩柄3的端部作用于卡簧6的中心孔6b时，迫使卡簧6变形，卡簧6的连接爪6c收缩，可降解套管4和第二套管5断开连接。The snap spring 6 shown in FIG. 5 is composed of a ring portion 6a and a plurality of connecting claws 6c integrally formed with the ring portion 6a. A central hole 6b is formed at the center of the ring portion 6a, and a plurality of connecting claws 6c are symmetrically disposed on the outer periphery of the ring portion 6a. The connection between the second sleeve 5 and the degradable sleeve 4 is achieved by sequentially inserting the connecting claws 6c into corresponding openings on the second sleeve 5 and the degradable sleeve 4 . In this embodiment, the clip spring 6 is provided with three connecting claws 6c, and the degradable sleeve 4 and the second sleeve 5 are respectively provided with three openings corresponding to the connecting claws 6c. The order in which the connecting claws 6c are inserted into the degradable sleeve 4 and the second sleeve 5 can also be reversed to the above sequence, which is specifically determined according to the structures of the degradable sleeve 4 and the second sleeve 5 . When connecting the degradable sleeve 4 and the second sleeve 5, first insert the two tightly, and then insert the connecting claw 6c of the snap spring 6 into the corresponding opening to complete the connection between the two. After the degradable sleeve 4 and the second sleeve 5 are connected, the rear end of the hook handle 3 is passed through the center hole of the snap ring 6 and connected with the control wire. The diameter of the central hole 6b is greater than the diameter of the connecting rod 3b at the rear end of the hook handle 3, but smaller than the diameter of the front end of the hook handle 3. Pull the hook handle 3 backwards, when the end of the hook handle 3 acts on the central hole 6b of the snap ring 6, the snap ring 6 is forced to deform, the connecting claw 6c of the snap ring 6 shrinks, and the sleeve 4 and the second sleeve can be degraded Tube 5 is disconnected.
下面对本实用新型提供的一次性可降解止血夹的组装过程进行介绍。The assembly process of the disposable degradable hemostatic clip provided by the utility model is introduced below.
在组装一次性可降解止血夹时，首先将两个可降解夹片1安装在牵拉支架2的前端，将牵拉支架2的底部与钩柄3的前端钩住；其次，将可降解套管4和第二套管5插接，然后通过卡簧6将可降解套管4和第二套管5固定在一起；第三，将钩柄3穿过卡簧6的中心孔6b后与控制线连接；最后，将弹簧管与第二套管5连接，完成一次性可降解止血夹的组装过程。When assembling a disposable degradable hemostatic clip, first install two degradable clips 1 on the front end of the pulling bracket 2, and hook the bottom of the pulling bracket 2 with the front end of the hook handle 3; The sleeve 4 and the second sleeve 5 are plugged together, and then the degradable sleeve 4 and the second sleeve 5 are fixed together by the snap ring 6; thirdly, the hook handle 3 is passed through the center hole 6b of the snap ring 6 Finally, it is connected with the control line; finally, the spring tube is connected with the second sleeve 5 to complete the assembly process of the disposable degradable hemostatic clip.
如上所述，本实用新型所提供的一次性可降解止血夹，在未使用时具有如图6所示的结构。两个可降解夹片1分别固定在牵拉支架2的前端，牵拉支架2的连接钩2c钩住钩柄3的钩形槽3a；可降解套管4和第二套管5套设在牵拉支架2和钩柄3的外部，可降解套管4与第二套管5通过卡簧6组装在一起；钩柄3的后端穿过卡簧6的中心孔后与控制线连接，控制线从弹簧管中穿过并连接到控制手柄中的控制旋钮上；第二套管5的后端与弹簧管的一端固定，弹簧管的另一端固定在控制手柄的壳体上。由于控制手柄上设置有限位机构，使得可降解夹片1只能部分进入可降解套管4，以使夹子部分呈闭合的初始状态。通过推动与钩柄3连接的手环，可降解夹片1还可再次张开与闭合。As mentioned above, the disposable degradable hemostatic clip provided by the present invention has a structure as shown in FIG. 6 when not in use. Two degradable clips 1 are respectively fixed on the front end of the pulling bracket 2, the connecting hook 2c of the pulling bracket 2 hooks the hook-shaped groove 3a of the hook handle 3; the degradable sleeve 4 and the second sleeve 5 are sleeved On the outside of the pulling bracket 2 and the hook handle 3, the degradable sleeve 4 and the second sleeve 5 are assembled together through a jumper 6; Connection, the control line passes through the spring tube and is connected to the control knob in the control handle; the rear end of the second sleeve 5 is fixed to one end of the spring tube, and the other end of the spring tube is fixed to the housing of the control handle. Since the control handle is provided with a limiting mechanism, the degradable clip 1 can only partially enter the degradable sleeve 4, so that the clip part is in a closed initial state. By pushing the bracelet connected with the hook handle 3, the degradable clip 1 can be opened and closed again.
在使用的过程中，通过向后拉动钩柄3，钩柄3拉动牵拉支架2，带动两个可降解夹片1进入可降解套管4，两个可降解夹片1闭合，并使两个可降解夹片1锁死在可降解套管4内部(如图7所示)；继续向后拉动钩柄3，钩柄3带动牵拉支架2使连接柱1b断裂，牵拉支架2与可降解夹片1分离；继续拉动钩柄3，钩柄3迫使卡簧6变形，卡簧6的三个连接爪6c内收，相继从可降解套管4的开孔中缩回，从而使第二套管5和可降解套管4分离。从而，除了如图8所示的可降解夹片1和可降解套管4滞留在体内外，其余由金属材料制成的部分(包括牵拉支架2、钩柄3、第二套管5和卡簧6)随弹簧管和控制线一起通过内窥镜的活检钳钳道撤出体外。In the process of use, by pulling the hook handle 3 backward, the hook handle 3 pulls the pulling bracket 2, drives the two degradable clips 1 into the degradable sleeve 4, and the two degradable clips 1 are closed, and the The two degradable clips 1 are locked inside the degradable sleeve 4 (as shown in Figure 7); continue to pull the hook handle 3 backward, the hook handle 3 drives the pulling bracket 2 to break the connecting column 1b, and pull the bracket 2. Separate from the degradable clip 1; continue to pull the hook handle 3, the hook handle 3 forces the circlip 6 to deform, the three connecting claws 6c of the circlip 6 retract, and retract from the opening of the degradable sleeve 4 in succession , so that the second sleeve 5 and the degradable sleeve 4 are separated. Thereby, except that the degradable clip 1 and the degradable sleeve 4 shown in Figure 8 stay in the body, all the other parts made of metal materials (including the pulling bracket 2, the hook handle 3, the second sleeve 5 And circlip 6) withdraw from the body through the biopsy forceps pincers channel of the endoscope together with the spring tube and the control wire.
综上所述，本实用新型所提供的一次性可降解止血夹，提供了由可降解材料制作的可降解夹片和可降解套管，使得滞留在体内的夹头部分均可降解。同时，还提供了与可降解部分组合使用的金属零件，实现了可降解夹头部分的分离和滞留，提高了一次性可降解止血夹在操作过程中的机械强度，使得可降解止血夹的实用性得到大幅度提升。To sum up, the disposable degradable hemostatic clip provided by the utility model provides a degradable clip and a degradable sleeve made of degradable materials, so that the part of the clip retained in the body can be degraded. At the same time, it also provides metal parts used in combination with the degradable part, which realizes the separation and retention of the degradable chuck part, improves the mechanical strength of the disposable degradable hemostatic clip during operation, and makes the degradable hemostatic clip practical Sex has been greatly improved.
以上对本实用新型所提供的一次性可降解止血夹进行了详细的说明。对本领域的一般技术人员而言，在不背离本实用新型实质精神的前提下对它所做的任何显而易见的改动，都将构成对本实用新型专利权的侵犯，将承担相应的法律责任。The disposable degradable hemostatic clip provided by the utility model has been described in detail above. For those skilled in the art, any obvious changes made to the utility model without departing from the essential spirit of the utility model will constitute an infringement of the utility model patent and will bear corresponding legal responsibilities.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920105830.9UCN209713038U (en) | 2019-01-22 | 2019-01-22 | Disposable degradable hemostatic clamp |
| US16/730,874US11234707B2 (en) | 2019-01-22 | 2019-12-30 | Disposable hemostatic clip system |
| EP20151884.2AEP3685769A1 (en) | 2019-01-22 | 2020-01-15 | Disposable degradable hemostatic clip |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920105830.9UCN209713038U (en) | 2019-01-22 | 2019-01-22 | Disposable degradable hemostatic clamp |
| Publication Number | Publication Date |
|---|---|
| CN209713038Utrue CN209713038U (en) | 2019-12-03 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920105830.9UActiveCN209713038U (en) | 2019-01-22 | 2019-01-22 | Disposable degradable hemostatic clamp |
| Country | Link |
|---|---|
| CN (1) | CN209713038U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109620344A (en)* | 2019-01-22 | 2019-04-16 | 于岭 | Disposable degradable hemostatic clip |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109620344A (en)* | 2019-01-22 | 2019-04-16 | 于岭 | Disposable degradable hemostatic clip |
| CN109620344B (en)* | 2019-01-22 | 2024-09-06 | 北京东林富士医疗器械有限责任公司 | Disposable degradable hemostatic clip |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | Effective date of registration:20210127 Address after:101200 3rd floor, area a, building 11, courtyard 39, Pinghe street, Pinggu District, Zhongguancun Science and Technology Park, Pinggu District, Beijing Patentee after:Beijing Donglin Fuji Medical Equipment Co.,Ltd. Address before:100050 a6-501, Fuli xinranting, 38 Nanwei Road, Xicheng District, Beijing Patentee before:Yu Ling Patentee before:Yu Chun |