CN113951952A - Chest wall stitching instrument - Google Patents

Abstract

The invention provides a chest wall anastomat which comprises a pressing component, a fixed handle and a sleeve; the pressing assembly is slidably fixed in the fixed handle, the sleeve is fixed in the fixed handle, and a part of the pressing assembly is also positioned in the sleeve; the pressing assembly comprises a pressing cylinder, a biasing spring, a grabbing claw and a blunt-ended needle; the blunt needle is fixed on the pressing column body, the grabbing claw is fixed on the blunt needle, and the bias spring is arranged between the fixed handle and the pressing column body; the pleura suture needle is characterized in that the needle head of the blunt needle is curved, and the design can effectively prevent a doctor from puncturing blood vessels and nerves on pleura when the doctor uses the chest wall anastomat to suture pleura.

Description

Chest wall stitching instrument

Technical Field

The invention relates to the technical field of medical instruments, in particular to a chest wall stitching instrument which is suitable for stitching a chest wall incision.

Background

In endoscopic minimally invasive surgery, an incision is small, and according to the traditional skin suture requirement and operation method, the innermost pleura is difficult to ensure to be sewn accurately, so that the possibility of internal adhesion of the incision in the later recovery process is increased, and the occurrence of incisional hernia is easy to cause. The traditional suture method of the endoscopic operation incision generally adopts curved needle suture, the pleura is found from the outside of the abdominal wall by using hemostatic forceps and the like, then the pleura is lifted out, and the curved needle is clamped by needle holding forceps to suture. However, the incision of the endoscopic minimally invasive surgery is small, a shape similar to a hole is formed, and the curved needle has a natural radian, so that the suture of the pleural layer is difficult to complete.

At present, some manufacturers manufacture abdominal wall anastomats for assisting doctors in peritoneum suture, the abdominal wall anastomats are mainly used for suturing small incisions of abdominal minimally invasive surgeries, doctors try to suture pleura, and the needles of the abdominal wall anastomats are too sharp, so that blood vessels and nerves attached to ribs are easy to puncture, and life health of patients is damaged.

Disclosure of Invention

In order to overcome the defects of the existing chest wall anastomat, the invention provides the blunt-end chest wall suturing device specially used for suturing the chest wall incision, which can greatly improve the safety and convenience of pleura suturing.

In order to achieve the purpose, the invention adopts the following technical scheme

A chest wall stapler comprising a compression assembly, a stationary handle, and a cannula; the pressing assembly is slidably fixed in the fixed handle, the sleeve is fixed in the fixed handle, and a part of the pressing assembly is also positioned in the sleeve; the pressing assembly comprises a pressing cylinder, a biasing spring, a grabbing claw and a blunt-ended needle; the blunt needle is fixed on the pressing column body, the grabbing claw is fixed on the blunt needle, and the bias spring is arranged between the fixed handle and the pressing column body; the needle head of the blunt needle is curved; the head end of the sleeve is curved.

Firstly, aiming at the suture of the pleural incision, a suture line is clamped into a sleeve by a grabbing claw, then one side of the pleural incision is punctured by the head end of the sleeve, certainly, because the head end of the sleeve is in a curved surface shape and the cross section area of the sleeve is larger, the puncture force is weaker, only the sleeve is difficult to puncture into the pleura for this purpose, but a doctor can know whether nerves and blood vessels exist on the pleura of the punctured part approximately, if no nerve and blood vessels exist at the punctured part, a blunt needle can penetrate out from the head end of the sleeve by pressing a pressing column body, the blunt needle is also in a curved surface shape to ensure that thoracic organs are not punctured, but because the cross section area of the blunt needle is smaller, the pleura is already jacked by the sleeve, the blunt needle penetrates out of the sleeve to puncture the pleura smoothly, then the grabbing claw is loosened to place the suture line into the chest, then the chest wall anastomat is taken out and used in the same way, and (3) penetrating the chest wall anastomat into the pleura from the other side of the pleura incision again, taking the suture line just placed in the chest out of the chest by using the grabbing claws, and then knotting two ends of the suture line to finish suturing.

Drawings

FIG. 1 is a front view of a chest wall stapler in its naturally contracted state and a view of the compression assembly shown separated from the stationary handle and cannula.

FIG. 2 is a front view of the chest wall stapler in its natural collapsed state, taken along the axis A and showing a close-up view of the encircled portion of the cross-sectional view.

FIG. 3 is a schematic diagram illustrating a puncturing status of the chest wall stapler of the present invention.

FIG. 4 is a schematic diagram of a chest wall stapler in a relaxed state according to the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the description of the present invention, it should be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.

As shown in fig. 1 to 4, a chest wall stapler includes a pressing assembly 1, a fixing handle 2 and a cannula 3; the pressing component 1 is slidably fixed in the fixed handle 2, the sleeve 3 is fixed in the fixed handle 2, and a part of the pressing component 1 is also positioned in the sleeve 3; the pressing assembly 1 comprises a pressing cylinder 11, a biasing spring 12, a grabbing claw 14 and a blunt needle 13; the blunt needle 13 is fixed on the pressing column 11, the grabbing claw 14 is fixed on the blunt needle 13, and the bias spring 12 is arranged between the fixed handle 2 and the pressing column 11; it is characterized in that the needle head 131 of the blunt needle 13 is in a curved surface shape; the head end 31 of the sleeve 3 is curved.

The chest wall anastomat has three main states, wherein the first state is a natural contraction state, at the moment, a pressing component of the chest wall anastomat is in a state without external force Fx, and a grabbing claw 14 and a blunt end needle 13 are not exposed out of a sleeve; the second state is a puncture state, and an external force Fx presses the pressing column body 11 to expose the blunt needle 13 from the sleeve but not completely expose the blunt needle, so that the puncture strength of the chest wall anastomat can be enhanced; the third state is a diastole state, and an external force Fx presses the cylinder 11 to enable the grabbing claws 14 and the blunt needle 13 to be completely exposed out of the cannula; the suture line can be released by firstly enabling the chest wall anastomat to be in a relaxation state, placing the suture line between the grabbing claw 14 and the blunt needle 13, then enabling the chest wall anastomat to be in a natural contraction state, realizing the grabbing action of the suture line, and then enabling the chest wall anastomat to be in the relaxation state.

Aiming at the suture of the pleural incision, a suture line is clamped into the sleeve 3 by the grabbing claw 14, then one side of the pleural incision is punctured by the head end 31 of the sleeve 3, certainly, because the head end 31 of the sleeve 3 is in a curved shape and the cross section area of the sleeve 3 is larger, the puncture force is weaker, so that only the sleeve 3 is difficult to puncture into the pleura, but a doctor can know whether nerves and blood vessels exist on the pleura of the punctured part, if no nerve and blood vessels exist at the punctured part, the blunt needle 13 can penetrate out from the head end 31 of the sleeve 3 by pressing the pressing cylinder 11, the blunt needle 13 is also in a curved shape, so that the thoracic organs of the thoracic cavity can not be punctured, but because the cross section area of the blunt needle 13 is smaller, the pleura is already jacked by the sleeve 3 to be thinner, at the moment, the blunt needle 13 penetrates out from the sleeve 3, then the pleura suture line is placed into the grabbing claw 14, then the wall anastomat is taken out and used in the same way, the chest wall anastomat is threaded into the pleura from the other side of the pleura incision again, the suture line which is just placed in the chest is taken out of the chest by the grabbing claws 14, and then the two ends of the suture line are knotted to finish the suture.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be defined by the appended claims.

Claims (1)

1. A chest wall stapler comprising a compression assembly, a stationary handle, and a cannula;

the pressing assembly is slidably fixed in the fixed handle, the sleeve is fixed in the fixed handle, and a part of the pressing assembly is also positioned in the sleeve;

the pressing assembly comprises a pressing cylinder, a biasing spring, a grabbing claw and a blunt-ended needle; the blunt needle is fixed on the pressing column body, the grabbing claw is fixed on the blunt needle, and the bias spring is arranged between the fixed handle and the pressing column body;

the needle head of the blunt needle is curved;

the head end of the sleeve is curved.

Images