Sealer structure and split pre-installed sealing clamp structure

Abstract

The present invention belongs to the technical field of medical devices, and relates to an instrument used for sealing human blood vessels in surgical operations, specifically a sealer structure and a split pre-installed sealing clamp structure, comprising an upper body and a lower body used in conjunction with each other, the lower body comprising a lower body strip, the two ends of the lower body strip in the length direction are respectively provided with snap-fit ​​grooves, and the closing surface of the lower body strip is provided with lower anti-slip teeth; the upper body comprises an upper body strip, the two ends of the upper body strip are respectively constructed with snap-fit ​​thorns, the inner side of the snap-fit ​​thorns is provided with an integrally connected undercut, and the closing surface of the upper body strip is provided with upper anti-slip teeth, the undercut cooperates with the snap-fit ​​groove to realize the connection between the upper body and the lower body; the two sides of the two ends of the surface of the upper body along the length direction are respectively provided with upper fixing columns, and the two sides of the two ends of the surface of the lower body along the length direction are respectively provided with lower fixing columns. The structure can conveniently and quickly realize the sealing of small human ducts, and the product is convenient to produce.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments, and relates to instruments used for sealing human blood vessels and duct tissues in surgical operations, in particular to a sealer structure and a split pre-installed sealing clamp structure. Background Art

[0002] Due to the characteristics of long-term uselessness and short-term needs, it is best to use absorbable instruments to seal blood vessels or duct tissues during clinical surgery, which can not only meet short-term needs but also avoid long-term retention of foreign matter in the body to cause hidden dangers. Such instruments must have five major properties, including biocompatibility, puncture, closure, absorbability, and strength retention, in order to fully meet clinical needs. Due to the performance limitations of bioabsorbable materials, absorbable sealing instruments are difficult to make into a simple and effective structure that has both rigidity and elasticity like non-absorbable "V"-shaped plastic clips. The clips of this structure have two clamping arms, and the tails of the two arms are connected together so that the two arms can be opened and closed to form a clamping mouth, while the heads form a puncture lock buckle with each other. Therefore, the absorbable clips currently used with two arms connected have defects, especially the defect of lack of puncture function. Summary of the invention

[0003] In view of the above problems, the present invention provides a sealer structure, which solves the difficulty that the rigidity (determines the puncture performance and strength retention performance of the device) and the elasticity (determines the connection and opening and closing functions of the device) of the absorbable material are incompatible. The structure has the necessary condition (rigidity) for the sealer to achieve effectiveness, and the condition (elasticity) required during use is entrusted to the matching tool---the split pre-installed sealing forceps to achieve, so that the device can meet all five major performance requirements of the clinic.

[0004] According to the technical solution of the present invention: a closure structure includes an upper body and a lower body used in conjunction with each other, the lower body includes a lower body strip, both ends of the lower body strip in the length direction are respectively provided with buckle grooves, and the closing surface of the lower body strip is provided with lower anti-slip teeth;

[0005] The upper body comprises an upper body strip, both ends of the upper body strip are respectively configured with buckling spikes, the inner side of the buckling spikes is provided with an integrally connected undercut, the closed surface of the upper body strip is provided with upper anti-slip teeth, the undercuts cooperate with the buckling grooves to realize the connection between the upper body and the lower body;

[0006] Upper fixing columns are respectively arranged on both sides of the surface of the upper body along the length direction, and lower fixing columns are respectively arranged on both sides of the surface of the lower body along the length direction.

[0007] As a further improvement of the present invention, a puncture point is provided at the lower end of the fastening thorn.

[0008] As a further improvement of the present invention, the working surfaces of the upper body and the lower body that cooperate with each other are in an arc-shaped transition.

[0009] As a further improvement of the present invention, the closing surface of the upper body is set to an upward concave arc shape, and the closing surface of the lower body is set to an upward convex arc shape, and the upward concave arc shape of the upper body matches the upward convex arc shape of the lower body.

[0010] The above-mentioned closure structure is convenient and quick to produce, and has a low production cost; at the same time, the product is easy to use.

[0011] The present invention also provides a split pre-assembled sealing pliers structure, comprising a pliers body, the pliers body being detachably connected to a pliers head, on which the above-mentioned sealer structure is installed;

[0012] The clamp head comprises an upper clamp arm and a lower clamp arm which can be opened and closed and adjusted. The upper clamp arm and the lower clamp arm are respectively provided with a receiving cavity. The upper combined body is pre-installed in the receiving cavity of the upper clamp arm, and the lower combined body is pre-installed in the receiving cavity of the lower clamp arm.

[0013] As a further improvement of the present invention, limit plates are respectively arranged on both sides of the pliers head corresponding to the upper pliers arm and the lower pliers arm.

[0014] As a further improvement of the present invention, the upper fixing column of the upper combined body is cooperatedly arranged in the positioning groove of the upper clamp arm, and the lower fixing column of the lower combined body is cooperatedly arranged in the positioning groove of the lower clamp arm.

[0015] As a further improvement of the present invention, the pliers body is provided with a button to control the loading and unloading of the pliers head.

[0016] As a further improvement of the present invention, the caliper body further comprises an operating outer ring, which is arranged at an axial end of the caliper body.

[0017] The split pre-installed sealing forceps structure of the product of the present invention comprises a forceps body and a forceps head installed on the forceps body, and a sealer structure is installed on the forceps head. When used clinically, the forceps body and the forceps head can quickly seal small human body passages. By changing the sealer structure and using matching tools, the limitations of existing products are broken through, and not only can the clinical requirements for biocompatibility, reliable sealing, tissue puncture, and degradation and absorption be fully met, but also the cost can be greatly reduced, and the burden on patients can be alleviated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded schematic diagram of the closure structure in the present invention.

[0019] Figure 2 It is a schematic diagram of the buckling of the closure structure in the present invention.

[0020] Figure 3 The present invention discloses a split type pre-assembled sealing clamp structure. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figures 1 to 3 In it, it includes an upper body 100, a buckling thorn 101, an upper body strip 102, an upper anti-slip tooth 103, an upper fixed column 104, a puncture tip 105, a buckle 106, a lower body 200, a buckling groove 201, a lower body strip 202, a lower anti-slip tooth 203, a lower fixed column 204, a buckling plate 205, a clamp head 300, an upper clamp arm 301, a lower clamp arm 302, a limit plate 303, a clamp body 400, a button 401, an operating outer ring 402, etc.

[0023] like Figure 1 , 2 As shown, the present invention is a closure structure, including an upper body 100 and a lower body 200 that cooperate with each other. The lower body 200 includes a lower body strip 202, and buckling grooves 201 are respectively arranged at both ends of the length direction of the lower body strip 202, and the closing surface of the lower body strip 202 is provided with lower anti-slip teeth 203.

[0024] The upper body 100 includes an upper body strip 102, and buckling spikes 101 are respectively constructed at both ends of the upper body strip 102. The inner side of the buckling spikes 101 is provided with integrally connected undercuts 106. The closed surface of the upper body strip 102 is provided with upper anti-slip teeth 103. The undercuts 106 cooperate with the buckling grooves 201 to realize the connection between the upper body 100 and the lower body 200.

[0025] Upper fixing posts 104 are respectively arranged on both sides of the upper body 100 along the length direction, and lower fixing posts 204 are respectively arranged on both sides of the lower body 200 along the length direction. In clinical application, the upper fixing posts 104 and the lower fixing posts 204 are respectively used to realize the pre-installation and fixation of the upper body 100 and the lower body 200.

[0026] The lower end of the snap-fitting thorn 101 is provided with a puncture tip 105. In clinical surgery, the puncture tip 105 is used to puncture the tissue to ensure that the undercut 106 cooperates with the snap-fitting plate 205 in the snap-fitting groove 201, thereby achieving a fixed connection between the upper body 100 and the lower body 200 after the pipeline is closed.

[0027] The working surfaces of the upper body 100 and the lower body 200 that cooperate with each other are in an arc transition. The closing surface of the upper body 100 is set to an upward concave arc, and the closing surface of the lower body 200 is set to an upward convex arc. The upper concave arc of the upper body 100 matches the upper convex arc of the lower body 200. The closing range of the closure structure is within the length of the line connecting the two snap-fitting thorns 101. When closing the human tissue duct, the upper body 100 and the lower body 200 are snapped in the same arc direction, the snap-fitting thorns 101 are inserted into the corresponding snap-fitting holes 201, and the undercuts 106 are snapped and fixed with the snap-fitting plates 205 in the snap-fitting holes 201. When the snap-fitting is completed, the closure is completed. At this time, the appearance of the closure is like a banana shape of the Chinese character "⌒".

[0028] like Figure 3 As shown, the product of the present invention also provides a split pre-assembled sealing forceps structure, including a forceps body 400, wherein the forceps body 400 is detachably connected to a forceps head 300, and the above-mentioned sealer structure is installed on the forceps head 300.

[0029] In order to achieve reliable installation of the sealer structure, the structure of the pliers head 300 is designed as follows: It can be understood that in order to match the upper body 100 and the lower body 200, the pliers head 300 includes an upper pliers arm 301 and a lower pliers arm 302 that can be adjusted to open and close, and the upper pliers arm 301 and the lower pliers arm 302 are respectively provided with a accommodating cavity, and the upper body 100 is pre-installed in the accommodating cavity of the upper pliers arm 301, and the lower body 200 is pre-installed in the accommodating cavity of the lower pliers arm 302.

[0030] Clinically, the range of human duct tissue entering the sealer structure needs to be limited to ensure that the human duct tissue can be effectively sealed. Limiting plates 303 are respectively provided on both sides of the clamp head 300 corresponding to the upper clamp arm 301 and the lower clamp arm 302.

[0031] Furthermore, in order to achieve relative fixation of the position of the upper body 100 relative to the upper clamp arm 301 and the position of the lower body 200 relative to the lower clamp arm 302, the upper fixing column 104 of the upper body 100 is cooperatedly arranged in the positioning groove of the upper clamp arm 301, and the lower fixing column 204 of the lower body 200 is cooperatedly arranged in the positioning groove of the lower clamp arm 302.

[0032] In practice, in order to realize the loading and unloading operation of the clamp head 300, the clamp body 400 is provided with a button 401, and the loading and unloading operation of the clamp head 300 can be effectively realized through the button 401. The clamp body 400 also includes an operating outer ring 402, which is arranged at the axial end of the clamp body 400.

[0033] It can be understood that in order to ensure that the upper body 100 and the lower body 200 can be reliably fixed in the accommodating cavities of the upper forceps arm 301 and the lower forceps arm 302 respectively during clinical operation, in actual application, a double hook plate is respectively arranged on both sides of the inner wall of the accommodating cavity of the upper forceps arm 301, and the double hook plate is linked with the operating outer ring 402 and can move back and forth along the axial direction accordingly with the operating outer ring 402, so that the two hook grooves of the double hook plate can cooperate with the upper fixing column 104 of the upper body 100, so as to realize the limited fixation of the upper body 100, and ensure that the upper body 100 can be reliably fixed in the accommodating cavity of the upper forceps arm 301 during clinical use. Before clamping the blood vessel, the body 100 is firmly fixed in the accommodating cavity of the upper clamp arm 301; similarly, a double hook plate is also fitted on both sides of the inner wall of the accommodating cavity of the lower clamp arm 302, and the double hook plate is also linked with the operating outer ring 402, and can reciprocate axially with the operating outer ring 402, so that the two hook grooves of the double hook plate can cooperate with the lower fixing column 204 of the lower combination 200, so as to realize the limited fixation of the lower combination 200, and ensure that during clinical use, the lower combination 200 is firmly fixed in the accommodating cavity of the lower clamp arm 302 before cooperating with the upper combination 100 to clamp the blood vessel.

[0034] In order to realize reliable linkage between the clamp body 400 and the clamp head 300, the operating outer ring 402 and the interface are also provided with associated mechanical parts with the clamp head 300. In specific production practice, the appearance of the clamp body 400 is similar to a pistol with a long barrel. Except for adjusting the rotation direction of the "barrel", other actions of the clamp head 300 are completed by different operations of the trigger. When in use, when it is necessary to close the upper clamp arm 301 and the lower clamp arm 302, the operating outer ring 402 of the closed clamp moves axially. During the axial forward movement of the operating outer ring 402, the upper clamp arm 301 and the lower clamp arm 302 are driven to close, thereby effectively clamping the upper body 100 and the lower body 200. The blood vessel is then effectively clamped. During the forward movement of the operating outer ring 402, the double hook plate is driven to move forward synchronously, so that the groove of the double hook plate is disengaged from the corresponding upper fixed column 104 and the lower fixed column 204, so that the upper body 100 and the lower body 200 after closing are conveniently taken out of the split pre-installed closed clamp.

[0035] The implementation steps of the present invention in specific practice are as follows: 1. The upper body 100 and the lower body 200 are injection molded with a medical implant-grade absorbable biomaterial that meets the strength requirements; 2. The clamp head 300 and the clamp body 400 are manufactured; 3. The upper body 100 and the lower body 200 are respectively loaded into the upper clamp arm 301 and the lower clamp arm 302 and fixed, and then packaged in a blister box, and sterilized with ethylene oxide for standby use; 4. The clamp body 400 is sterilized before surgery and is standby use; 5. In clinical surgery, when it is necessary to close the pipeline, the human body pipeline is first separated from the surrounding tissue; 6. Then the clamp head 300 is installed on the clamp body 400, the pipeline to be closed is forked into the jaws until it is blocked by the limit plate 303, and then the trigger is pulled to close the jaws, so that the buckle closure can be completed and the sealer can be released; 7. Remove the sealing clamp, remove the used sealing clamp head 300 through the button 401, and then install a new clamp head 300 for standby use.

[0036] The product structure of the present invention is ingenious, which avoids the shortcomings of absorbable biomaterials and meets all clinical needs. The production cost can be greatly reduced, which can reduce the cost burden of patients in clinical operations and has good social and economic benefits.

Claims

1. A closure structure, characterized in that: It comprises an upper body (100) and a lower body (200) which cooperate with each other, the lower body (200) comprising a lower body strip (202), both ends of the lower body strip (202) in the length direction are respectively provided with buckling grooves (201), and the closed surface of the lower body strip (202) is provided with lower anti-slip teeth (203); The upper body (100) comprises an upper body strip (102), and buckling spikes (101) are respectively formed at both ends of the upper body strip (102). An integrally connected undercut (106) is arranged on the inner side of the buckling spike (101), and an upper anti-slip tooth (103) is arranged on the closed surface of the upper body strip (102). The undercut (106) cooperates with the buckling groove (201) to realize the connection between the upper body (100) and the lower body (200); Upper fixing columns (104) are respectively arranged on both sides of the surface of the upper body (100) along the length direction, and lower fixing columns (204) are respectively arranged on both sides of the surface of the lower body (200) along the length direction; a puncture point (105) is provided at the lower end of the buckling thorn (101); The invention also comprises a clamp head (300), the clamp head (300) comprising an upper clamp arm (301) and a lower clamp arm (302) which can be opened and closed and adjusted, the upper clamp arm (301) and the lower clamp arm (302) respectively being provided with a receiving cavity, the upper combined body (100) being positioned and pre-installed in the receiving cavity of the upper clamp arm (301), and the lower combined body (200) being positioned and pre-installed in the receiving cavity of the lower clamp arm (302); the upper fixing column (104) of the upper combined body (100) being arranged in a positioning groove of the upper clamp arm (301), and the lower fixing column (204) of the lower combined body (200) being arranged in a positioning groove of the lower clamp arm (302); and limiting plates (303) being respectively arranged on both sides of the clamp head (300) corresponding to the upper clamp arm (301) and the lower clamp arm (302).

2. The closure structure according to claim 1, characterized in that: The working surfaces of the upper body (100) and the lower body (200) that cooperate with each other are in an arc-shaped transition.

3. The closure structure according to claim 1, characterized in that: The closed surface of the upper body (100) is arranged in an upward concave arc shape, and the closed surface of the lower body (200) is arranged in an upward convex arc shape, and the upward concave arc shape of the upper body (100) matches the upward convex arc shape of the lower body (200).

4. A split pre-assembled closing clamp structure, characterized in that: It comprises a pliers body (400), wherein the pliers body (400) is detachably connected to the pliers head (300) as claimed in claim 1.

5. The split pre-assembled sealing forceps structure according to claim 4, characterized in that: The pliers body (400) is provided with a button (401) for controlling the loading and unloading of the pliers head (300).

6. The split pre-assembled sealing clamp structure according to claim 4, characterized in that: The caliper body (400) further comprises an operating outer ring (402), and the operating outer ring (402) is arranged at an axial end of the caliper body (400).

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