Endoscopic surgical instrument

Abstract

The utility model discloses an endoscopic surgical instrument, and belongs to the technical field of medical instruments. An endoscopic surgical instrument comprising: a first handle and a second handle; the second handle is rotationally connected with the first handle; the guide block is fixedly connected with the first handle; the connecting block is fixedly connected with the guide block; the first guide column is horizontally and slidably connected with the guide block; the outer pipe abuts against the connecting block; the inner rod is horizontally and slidably connected with the outer pipe, and one end is inserted into the first guide column; the fixing sleeve is arranged on the connecting block in a sleeving manner; the fixing assembly is used for fixing the outer pipe and the connecting block; the fixing assembly comprises a fastening block which is in radial sliding connection with the fixing sleeve; the connecting rod is fixedly connected with the fastening block; two ends of the first spring are fixedly connected with the fixing sleeve and the connecting rod respectively; the transmission block is fixedly connected with the connecting rod; and the driving block is horizontally and slidably connected with the transmission block fixing sleeve. The endoscope surgical instrument has the beneficial effect that the detachable endoscope surgical instrument is provided.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and more particularly, to a laparoscopic surgical instrument. Background Art

[0002] Laparoscopic surgical instruments have different heads according to different expected functions, including but not limited to scissors, dissectors, forceps, etc. These surgical instruments can be reused or single-use. Among them, single-use instruments are all of an integral structure and are discarded entirely after one use, resulting in waste of resources. Reusable instruments can be either integral or detachable. However, the current structure design of repeatable detachable instruments is complex and costly, which brings certain adverse effects to the usage process. To address the deficiencies of the prior art, we propose a detachable laparoscopic surgical instrument.

[0003] Therefore, there is provided a laparoscopic surgical instrument with detachable parts. Summary of the Utility Model

[0004] This part of the content of this application is used to introduce the concepts in a concise form, and these concepts will be described in detail in the subsequent Detailed Description of the Embodiments section. This part of the content of this application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] To solve the technical problems mentioned in the above Background Art section, some embodiments of this application provide a laparoscopic surgical instrument, including: a first handle and a second handle; the second handle is rotatably connected to the first handle; a guide block, fixedly connected to the first handle; a connection block, fixedly connected to the guide block; a first guide post, horizontally slidably connected to the guide block; an outer tube, abutted against the connection block; an inner rod, horizontally slidably connected to the outer tube, and one end is inserted into the first guide post; a fixing sleeve, sleeved on the connection block; a fixing component, used to fix the outer tube to the connection block; the fixing component includes: a fastening block, radially slidably connected to the fixing sleeve; a connecting rod, fixedly connected to the fastening block; a first spring, with both ends fixedly connected to the fixing sleeve and the connecting rod respectively; a transmission block, fixedly connected to the connecting rod; a driving block, horizontally slidably connected to the transmission block and the fixing sleeve; wherein, the connection block includes a limiting groove; the limiting groove is for the fastening block to be inserted; the fixing sleeve includes a tapered hole; the outer tube includes a tapered surface; the tapered hole abuts against the tapered surface.

[0006] Push the driving block, the movement of the driving block drives the movement of the transmission block, the movement of the transmission block drives the movement of the connecting rod, and the movement of the connecting rod drives the movement of the fastening block, so that the fastening block disengages from the limiting groove, thereby separating the outer tube from the connection block. At the same time, the inner rod is inserted into the first guide post, and the inner rod can be taken out. Therefore, it is convenient to disassemble the inner rod and the outer tube.

[0007] Further, the fixing component preferably includes: a driving ring fixedly connected to the driving block; a second spring with two ends respectively fixedly connected to the driving ring and the fixing sleeve; and a pushing ring fixedly connected to the driving ring.

[0008] Further, the fixing sleeve is provided with a first sliding groove extending along the radial direction of the fixing sleeve; the fastening block moves along the first sliding groove.

[0009] Further, the fixing sleeve is provided with a second sliding groove extending along the radial direction of the fixing sleeve; the transmission block moves along the second sliding groove.

[0010] Further, the fixing sleeve is provided with a third sliding groove extending along the axial direction of the fixing sleeve; the driving block moves along the third sliding groove.

[0011] Further, the driving block includes a driving inclined surface; the transmission block includes a transmission inclined surface; the driving inclined surface abuts against the transmission inclined surface.

[0012] Further, the first guide post includes an insertion groove; the inner rod includes a limiting ball; the limiting ball is located in the insertion groove.

[0013] Further, the second handle includes a convex block; the first guide post includes a transmission groove; a part of the convex block is located in the transmission groove.

[0014] Further, the guiding block includes a first clearance groove; the second handle moves in the first clearance groove.

[0015] Further, the endoscopic surgical instrument further includes: a steel sheet with two ends respectively fixedly connected to the first handle and the second handle.

[0016] The beneficial effect of the present application is that: a detachable endoscopic surgical instrument is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of the application, making other features, objectives, and advantages of the application more obvious. The schematic embodiments and descriptions thereof of the application are used to explain the application and do not constitute an improper limitation to the application.

[0018] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn to scale.

[0019] In the drawings:

[0020] Figure 1 is the overall schematic diagram according to the embodiment of the present application;

[0021] Figure 2It is a schematic structural diagram of a part of an embodiment, mainly showing the structures of the connecting block and the first guide post;

[0022] Figure 3 It is Figure 2 An enlarged view of part A, mainly showing the structures of the first chute and the second chute;

[0023] Figure 4 It is a schematic structural diagram of a part of an embodiment, mainly showing the structures of the driving block and the transmission block;

[0024] Figure 5 It is a schematic structural diagram of a part of an embodiment, mainly showing the structures of the first handle and the steel sheet;

[0025] Figure 6 It is Figure 5 An enlarged view of part B, mainly showing the structures of the convex block and the transmission groove;

[0026] Figure 7 It is Figure 5 An enlarged view of part C, mainly showing the structures of the limiting ball and the insertion groove.

[0027] Reference numerals:

[0028] 100, endoscopic surgical instrument; 101, first handle; 102, second handle; 102a, convex block; 103, steel sheet;

[0029] 104, guide block; 104a, first clearance groove; 105, connecting block; 105a, limiting groove; 106, first guide post;

[0030] 106a, insertion groove; 106b, transmission groove; 107, outer tube; 107a, conical surface; 108, inner rod; 108a, limiting ball;

[0031] 109, fixing sleeve; 109a, first chute; 109b, second chute; 109c, third chute; 109d, conical hole;

[0032] 110, fastening block; 112, connecting rod; 113, first spring; 114, transmission block; 114a, transmission inclined surface; 115, driving block; 115a, driving inclined surface; 116, driving ring; 117, second spring; 118, pushing ring. Detailed implementation manners

[0033] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0034] In addition, it should be noted that for the sake of convenience of description, only the parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0035] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependent relationships.

[0036] It should be noted that the modifications of "one" and "a plurality" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless clearly specified otherwise in the context, it should be understood as "one or more".

[0037] The present disclosure will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0038] Embodiment 1:

[0039] Referring to Figure 1-7 , a laparoscopic surgical instrument 100 includes: a first handle 101, a second handle 102, a steel sheet 103, a guide block 104, a connection block 105, a first guide post 106, an outer tube 107, an inner rod 108, a fixing sleeve 109, and a fixing component for fixing the outer tube 107 to the connection block 105. Both ends of the steel sheet 103 are fixedly connected to the first handle 101 and the second handle 102 respectively. The second handle 102 is rotatably connected to the first handle 101. The steel sheet 103 has a certain flexibility. When the first handle 101 and the second handle 102 are released, the steel sheet 103 will reset the first handle 101 and the second handle 102.

[0040] The guiding block 104 is fixedly connected to the first handle 101. The connecting block 105 is fixedly connected to the guiding block 104. The first guide post 106 is horizontally slidably connected to the guiding block 104. Specifically, the guiding block 104 includes a first guiding hole, and the first guide post 106 moves along the axial direction of the first guiding hole. The outer tube 107 abuts against the connecting block 105. The inner rod 108 is horizontally slidably connected to the outer tube 107 and is inserted into one end of the first guide post 106. Specifically, the outer tube 107 includes a second guiding hole, and the inner rod 108 moves along the axial direction of the second guiding hole. The first guide post 106 includes an insertion groove 106a, and the inner rod 108 includes a limiting ball 108a, and the limiting ball 108a is located in the insertion groove 106a. The fixing sleeve 109 is sleeved on the connecting block 105.

[0041] The fixing assembly is used to fix the outer tube 107 and the connecting block 105, and includes: a fastening block 110, a connecting rod 112, a first spring 113, a transmission block 114, a driving block 115, a driving ring 116, a second spring 117, and a pushing ring 118. The fastening block 110 is radially slidably connected to the fixing sleeve 109. Specifically, the fixing sleeve 109 is provided with a first sliding groove 109a extending radially along the fixing sleeve 109, and the fastening block 110 moves along the first sliding groove 109a. The connecting rod 112 is fixedly connected to the fastening block 110. Both ends of the first spring 113 are fixedly connected to the fixing sleeve 109 and the connecting rod 112 respectively.

[0042] The transmission block 114 is fixedly connected to the connecting rod 112. The fixing sleeve 109 is provided with a second sliding groove 109b extending radially along the fixing sleeve 109, and the transmission block 114 moves along the second sliding groove 109b. The driving block 115 is horizontally slidably connected to the fixing sleeve 109 of the transmission block 114. Specifically, the fixing sleeve 109 is provided with a third sliding groove 109c extending axially along the fixing sleeve 109, and the driving block 115 moves along the third sliding groove 109c. The driving ring 116 is fixedly connected to the driving block 115. Both ends of the second spring 117 are fixedly connected to the driving ring 116 and the fixing sleeve 109 respectively. The pushing ring 118 is fixedly connected to the driving ring 116.

[0043] Among them, the connecting block 105 includes a limiting groove 105a for the fastening block 110 to be inserted. The fixing sleeve 109 includes a tapered hole 109d, and the outer tube 107 includes a tapered surface 107a, and the tapered hole 109d abuts against the tapered surface 107a. The driving block 115 includes a driving inclined surface 115a, and the transmission block 114 includes a transmission inclined surface 114a, and the driving inclined surface 115a abuts against the transmission inclined surface 114a. The second handle 102 includes a protrusion 102a, and the first guide post 106 includes a transmission groove 106b, and the protrusion 102a is partially located in the transmission groove 106b. The guiding block 104 includes a first clearance groove 104a for the second handle 102 to move. Push the push ring 118, the movement of the push ring 118 drives the driving ring 116 to move, the movement of the driving ring 116 drives the driving block 115 to move, and the driving block 115 drives the transmission block 114 to move through the driving inclined surface 115a and the transmission inclined surface 114a (the transmission block 114 moves along the second chute 109b), the movement of the transmission block 114 drives the connecting rod 112 to move, the movement of the connecting rod 112 drives the fastening block 110 to move, so that the fastening block 110 disengages from the limiting groove 105a, so as to separate the outer tube 107 from the connecting block 105, so as to disassemble the fixing sleeve 109 and the outer tube 107, and then the inner rod 108 is disengaged from the insertion groove 106a, and the inner rod 108 can be taken out. Therefore, it is more convenient to disassemble the inner rod 108 and the outer tube 107, and the disassembly is more convenient.

[0044] Working process: Hold the first handle 101 and the second handle 102 with one hand, rotate the first handle 101 and the second handle 102 relative to each other, the protrusion 102a of the second handle 102 drives the first guide post 106 to move through the transmission groove 106b, and the movement of the first guide post 106 drives the inner rod 108 to move, so as to drive the inner rod 108 to work, which is more convenient and practical. Push the push ring 118, the movement of the push ring 118 drives the driving ring 116 to move, the movement of the driving ring 116 drives the driving block 115 to move, and the driving block 115 drives the transmission block 114 to move through the driving inclined surface 115a and the transmission inclined surface 114a (the transmission block 114 moves along the second chute 109b), the movement of the transmission block 114 drives the connecting rod 112 to move, the movement of the connecting rod 112 drives the fastening block 110 to move, so that the fastening block 110 disengages from the limiting groove 105a, so as to separate the outer tube 107 from the connecting block 105, so as to disassemble the fixing sleeve 109 and the outer tube 107, and then the inner rod 108 is disengaged from the insertion groove 106a, and the inner rod 108 can be taken out. Therefore, it is more convenient to disassemble the inner rod 108 and the outer tube 107, the disassembly is more convenient, and it is more convenient to replace.

[0045] Embodiment 2:

[0046] The difference from Embodiment 1 is that a positioning chip is added to the first handle 101. The positioning chip is signal-connected to the central processor, and the corresponding medical device can be positioned through the central processor, facilitating the traceability management of the medical device.

[0047] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. An endoscopic surgical instrument, comprising: A first handle and a second handle; The second handle is rotatably connected to the first handle; It is characterized in that: The endoscopic surgical instrument further comprises: A guide block fixedly connected to the first handle; A connecting block fixedly connected to the guide block; A first guide post horizontally slidably connected to the guide block; An outer tube abutted against the connecting block; An inner rod horizontally slidably connected to the outer tube, with one end inserted into the first guide post; A fixing sleeve sleeved on the connecting block; A fixing assembly for fixing the outer tube to the connecting block; The fixing assembly comprises: A fastening block radially slidably connected to the fixing sleeve; A connecting rod fixedly connected to the fastening block; A first spring, with both ends fixedly connected to the fixing sleeve and the connecting rod respectively; A transmission block fixedly connected to the connecting rod; A driving block horizontally slidably connected to the fixing sleeve of the transmission block; Wherein, the connecting block includes a limiting groove; the limiting groove is for the fastening block to be inserted into; the fixing sleeve includes a tapered hole; the outer tube includes a tapered surface; the tapered hole abuts against the tapered surface.

2. The endoscopic surgical instrument according to claim 1, characterized in that: The fixing assembly further comprises: A driving ring fixedly connected to the driving block; A second spring, with both ends fixedly connected to the driving ring and the fixing sleeve respectively; A pushing ring fixedly connected to the driving ring.

3. The endoscopic surgical instrument according to claim 2, characterized in that: The fixing sleeve is provided with a first sliding groove extending along the radial direction of the fixing sleeve; The fastening block moves along the first sliding groove.

4. The endoscopic surgical instrument according to claim 3, characterized in that: The fixing sleeve is provided with a second sliding groove extending along the radial direction of the fixing sleeve; The transmission block moves along the second sliding groove.

5. The endoscopic surgical instrument according to claim 4, characterized in that: The fixing sleeve is provided with a third sliding groove extending along the axial direction of the fixing sleeve; The driving block moves along the third sliding groove.

6. The endoscopic surgical instrument according to claim 5, characterized in that: The driving block includes a driving inclined surface; The transmission block includes a transmission inclined surface; The driving inclined surface abuts against the transmission inclined surface.

7. The endoscopic surgical instrument according to claim 6, characterized in that: The first guide post includes an insertion groove; The inner rod includes a limiting ball; The limiting ball is located in the insertion groove.

8. The endoscopic surgical instrument according to claim 7, characterized in that: The second handle includes a convex block; The first guide post includes a transmission groove; Part of the convex block is located in the transmission groove.

9. The endoscopic surgical instrument according to claim 8, characterized in that: The guide block includes a first clearance groove; The first clearance groove allows the second handle to move.

10. The laparoscopic surgical instrument according to claim 9, wherein: The endoscopic surgical instrument further comprises: A steel sheet, with both ends fixedly connected to the first handle and the second handle respectively.

Images