Ultramicro-invasive operating forceps with adjustable arm of force

Abstract

The utility model discloses a pair of ultramicro wound operating forceps with an adjustable force arm, which comprises a forceps head, a puncture component, a locking sleeve, a support rod and a handle which are structurally separated from each other, the forceps head and the front end of the puncture component can be separated and connected through threads, and the locking sleeve can be annularly sleeved on the puncture component and axially slide along the puncture component. The tail end of the puncture assembly can penetrate through the supporting rod to be connected with and separated from the handle, the front end of the supporting rod can be connected with and separated from the locking sleeve, and the tail end of the supporting rod can be connected with and separated from the handle. According to the scheme, a locking structure is moved forwards, the structure of an existing instrument is simplified, and rapid assembling of the instrument is facilitated; according to the scheme, the locking structure is improved, the locking sleeve is used for guiding, and jamming between the needle tube and the supporting rod is avoided; according to the structural design of the scheme, the problem that assembly cannot be achieved due to the fact that the puncture assembly is uneven in stress after puncture is completed can be solved.

Description

Technical Field

[0001] The utility model relates to the field of laparoscopic surgical instruments, in particular to an ultra-minimally invasive surgical forceps with adjustable forceps arms. Background Art

[0002] In the existing laparoscopic surgical instruments, in order to facilitate the operation, the traditional laparoscopic surgical instruments are designed to be a detachable structure, so as to meet the requirements of the instrument assembly work after the abdominal puncture is completed.

[0003] However, in clinical applications, when assembling the needle assembly with the handle, it was found that the buckle designed for the locking function at the tail of the needle tube would interfere with the support rod during the assembly process, resulting in jamming and inability to assemble due to uneven force. Therefore, the locking structure needs to be improved to meet clinical needs. Utility Model Content

[0004] The purpose of the utility model is to improve the locking structure and the corresponding locking position on the basis of the existing structure, so as to meet the requirements of rapid assembly of the instrument after puncturing into the abdominal cavity.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An ultra-minimally invasive surgical forceps with adjustable lever arms, comprising a forceps head, a puncture assembly, a locking sleeve, a support rod and a handle, which are separated from each other in structure.

[0007] The clamp head and the front end of the puncture assembly can be separated and connected through threads.

[0008] The locking sleeve can be sleeved on the puncture assembly and slide axially along the puncture assembly.

[0009] The tail end of the puncture assembly can pass through the support rod and connect and separate with the handle.

[0010] The front end of the support rod can be connected to and separated from the locking sleeve, and the rear end of the support rod can be connected to and separated from the handle.

[0011] In the above technical solution, the puncture assembly includes a solid needle and a needle tube with two ends penetrating therethrough. The front end of the needle can be inserted into and partially pass through the needle tube, and a threaded section is provided on the needle tip.

[0012] In the above technical solution, the locking sleeve slides on the needle tube along the axial direction of the puncture assembly.

[0013] In the above technical solution, the diameter of the tail end of the needle tube is larger than the inner diameter of the locking sleeve after connection.

[0014] In the above technical solution, the tail end of the needle of the puncture assembly passing through the support rod is connected to the handle, and the needle tube is connected to the support rod through the locking sleeve.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] This solution moves the locking structure forward, simplifies the structure of the existing device, and facilitates the rapid assembly of the device;

[0017] This solution improves the locking structure and uses a locking sleeve for guidance to avoid jamming between the needle tube and the support rod;

[0018] The structural design of this solution can avoid the problem of being unable to assemble due to uneven force on the puncture components after the puncture is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0020] Figure 1 It is a schematic diagram of the structure of the component needle;

[0021] Figure 2 It is a schematic diagram of the structure of a solid needle;

[0022] Figure 3 It is a schematic diagram of the structure of the assembled needle tube;

[0023] Figure 4 It is a structural diagram for installing the locking sleeve;

[0024] Figure 5 It is a schematic diagram of the structure of installing the clamp head;

[0025] Figure 6 It is a schematic diagram of the structure for installing the support rod;

[0026] Figure 7 This is a schematic diagram of the completed installation structure;

[0027] Among them: 1 is the puncture assembly, 1-1 is the needle, 1-2 is the thread, 1-3 is the needle tube, 2 is the locking sleeve, 3 is the clamp head, and 4 is the support rod. DETAILED DESCRIPTION

[0028] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0029] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0030] In this embodiment, the main improvement is to add a locking sleeve 2 between the puncture assembly 1 and the support rod. The specific structure is as follows:

[0031] like Figure 1 , Figure 2 , Figure 3 As shown, the puncture assembly 1 includes a solid needle 1-1, and the front end of the needle 1-1 is provided with a thread 1-2, which is used to connect with the clamp head 3. The needle tube 1-3 is sleeved on the needle 1-1 mainly to protect the needle 1-1, and the front end of the needle tube 1-3 is also provided with a thread, which is also used to connect with the clamp head 3.

[0032] like Figure 4 As shown, the locking sleeve 2 is inserted from the front end of the puncture assembly 1, and the locking sleeve 2 is slid to the rear end of the needle tube 1-3, and the front end of the puncture assembly 1 is threadedly connected to the clamp head, as shown in FIG. Figure 5 shown.

[0033] exist Figure 5 On the basis of the puncture assembly 1 is inserted into the support rod 4, and the locking sleeve 2 is connected to the support rod 4, and then the sliding locking sleeve 2 drives the support rod 4 to slide to the specified position, such as Figure 6 As shown, the support rod 4 and the needle 1-1 are connected to the handle respectively, and after the connection is completed, the locking sleeve 2 and the support rod 4 are locked. Figure 7 shown.

[0034] In this embodiment, the locking sleeve 2 adopts a conventional screw sleeve locking structure. The main innovation of this embodiment is that the traction mechanism for the needle tube 1-3 to retreat in the support rod 4 is realized by the locking sleeve 2, avoiding the problem of the needle tube 1-3 getting stuck during the retreat process in the traditional structure.

[0035] In this embodiment, only the connection position of the locking sleeve and the installation and connection process are changed, thereby solving the objective problems faced in clinical surgery.

[0036] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. An ultra-minimally invasive surgical forceps with adjustable lever arm, characterized in that It includes a pliers head, a puncture assembly, a locking sleeve, a support rod and a handle which are separated from each other. The clamp head and the front end of the puncture assembly can be separated and connected through threads. The locking sleeve can be sleeved on the puncture assembly and slide axially along the puncture assembly. The tail end of the puncture assembly can pass through the support rod and connect and separate with the handle. The front end of the support rod can be connected to and separated from the locking sleeve, and the rear end of the support rod can be connected to and separated from the handle.

2. The ultra-minimally invasive surgical forceps with adjustable lever arm according to claim 1, characterized in that The puncture assembly comprises a solid needle and a needle tube with two ends penetrating therethrough. The front end of the needle can be inserted into and partially pass through the needle tube, and a threaded section is arranged on the needle tip.

3. The ultra-minimally invasive surgical forceps with adjustable lever arm according to claim 2, characterized in that The locking sleeve slides on the needle tube along the axial direction of the puncture assembly.

4. The ultra-minimally invasive surgical forceps with adjustable lever arm according to claim 3, characterized in that The diameter of the tail end of the needle tube is larger than the inner diameter of the locking sleeve after connection.

5. The ultra-minimally invasive surgical forceps with adjustable lever arm according to claim 2, characterized in that The puncture assembly passes through the support rod, the tail end of the needle is connected to the handle, and the needle tube is connected to the support rod through a locking sleeve.

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