Rebounding automatic spreader used in endoscope

Abstract

The utility model discloses a rebounding automatic spreader used in an endoscope, and belongs to the field of medical instruments. Comprising a holder having a handle end and a tubular portion connected to the handle end; the connecting rod is slidably arranged in the tubular part, and one end of the connecting rod extends out of the tubular part; the opening assembly is connected to one end, extending out of the tubular part, of the connecting rod; the distraction assembly comprises a connector connected with the connecting rod; the two groups of fork-shaped pieces are rotationally arranged on the connector; the opening spring is arranged between the two fork-shaped pieces, the two ends of the opening spring are connected with the two fork-shaped pieces respectively, and the opening spring is used for opening the two fork-shaped pieces. The beneficial effect of the application lies in providing a convenient-to-use automatic distracter capable of rebounding in the endoscope.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more specifically, to a resilient automatic retractor for use in laparoscopy. Background Technology

[0002] During surgery, assistants need to use instruments such as retractors to fully expose the surgical field. To save manpower, automatic retractors are usually used. However, retractors are more commonly used in open surgery and less so in laparoscopic surgery, which affects the exposure of the surgical field. Taking laparoscopic thyroid surgery as an example, a simple steel needle is often used. It is inserted into the surgical field of the neck by piercing the skin of the neck, and a second assistant holds the handle to achieve the purpose of exposure. In this way, it not only requires the labor of an extra doctor, but also creates an additional wound on the patient's neck. Moreover, it can only open one side at a time, and cannot open both sides at the same time, resulting in insufficient exposure of the surgical field and increasing the difficulty of the surgery. Furthermore, if the left and right sides are switched, the neck position needs to be punctured again, which adds another wound. In addition, the doctor holding the retractor is prone to contamination when moving the position, which is quite inconvenient.

[0003] Therefore, there is a need for an easy-to-use, resilient, automatic retractor for use within laparoscopy. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a resilient automatic retractor for use within a laparoscope, comprising: a gripper having a handle end and a tubular portion connected to the handle end; a connecting rod slidably disposed within the tubular portion, one end of which extends out of the tubular portion; and a retractor assembly connected to the end of the connecting rod extending out of the tubular portion. The retractor assembly includes: a connector connected to the connecting rod; two sets of fork-shaped members rotatably disposed on the connector head; and a retractor spring disposed between the two fork-shaped members, with both ends connected to the two fork-shaped members respectively, for retracting the two fork-shaped members.

[0006] By setting two fork-shaped parts in the expansion assembly, which are expanded to both sides under the action of expansion springs, the surgical site is exposed.

[0007] Furthermore, the fork-shaped component includes: a connecting end, rotatably mounted on the connecting head; two sets of branch rods, rotatably mounted on the connecting end; a silicone strip, with both ends connected to the two branch rods respectively; and a first torsion spring, disposed between the branch rods and the connecting end, used to straighten the silicone strip by causing one end of the two branch rods to move away from each other when no external force is applied.

[0008] By using the branch rods and silicone strips, the two branch rods can open the surgical area as much as possible through the silicone strips when they are spread apart, thus ensuring the surgical field of vision.

[0009] Furthermore, an annular groove is provided on the connector head, and two locking blocks that engage with the annular groove are rotatably connected to one end of the connecting rod. A second torsion spring is provided between the locking blocks and the connecting rod, and the two ends of the second torsion spring are respectively connected between the locking blocks and the connecting rod.

[0010] The annular groove and locking block allow the clamp to be removed after the device is opened, preventing it from interfering with the surgical procedure.

[0011] Furthermore, the handle includes a gripping part and a pressing part, the pressing part and the gripping part are hinged together, and a return spring is provided between the pressing part and the gripping part, with both ends of the return spring connected to the pressing part and the gripping part respectively.

[0012] The handle is designed for easy one-handed operation.

[0013] Furthermore, a hinge rod is hinged to one end of the pressing part, and one end of the hinge rod is hinged to the connecting rod.

[0014] Furthermore, the snap-fit ​​block includes a mounting end rotatably connected to one end of the connecting rod and a snap-fit ​​part fixedly connected to the mounting end. The snap-fit ​​part has a semi-annular structure for embedding into an annular groove.

[0015] The snap-fit ​​block allows the connector to connect with the connecting rod, facilitating the insertion and removal of the component.

[0016] Furthermore, the plane perpendicular to the axis of the tubular part is set as the reference plane. The farthest distance between the two farthest parts of the projection of the spreading component on the reference plane is the first dimension, and the closest distance between the two farthest parts of the projection of the spreading component on the reference plane is the second dimension. The first dimension is greater than the inner diameter of the tubular part, and the second dimension is less than the inner diameter of the tubular part.

[0017] Furthermore, the two fork-shaped components are made of medical-grade stainless steel.

[0018] The beneficial effect of this application is that it provides an easy-to-use, resilient, automatic retractor for use within a laparoscope. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0020] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0021] In the attached diagram:

[0022] Figure 1 This is an overall schematic diagram according to one embodiment of the present application;

[0023] Figure 2 yes Figure 1 The installation diagram of the fork-shaped component in the embodiment is shown below;

[0024] Figure 3 yes Figure 2 A top view of the structure.

[0025] Figure label:

[0026] 100. Clamp; 101. Connecting rod; 102. Connector; 103. Fork-shaped part; 104. Spreading spring; 105. Handle; 106. Tubular part; 107. Grip part; 108. Pressing part; 109. Return spring; 110. Hinge rod; 111. Annular groove; 112. Snap-fit ​​block; 113. Second torsion spring; 114. Mounting end; 115. Snap-fit ​​part; 116. Connecting end; 117. Branch rod; 118. Silicone tape; 119. First torsion spring. Detailed Implementation

[0027] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0028] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0029] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only 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 interdependencies.

[0030] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0031] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Reference Figure 1-3 An intra-endoscopic resilient automatic expander includes: a gripper 100, a connecting rod 101, a connector 102, a fork-shaped component 103, and a expander spring 104. The gripper 100 has a handle 105 at one end and a tubular portion 106 connected to the handle 105. The handle 105 includes a gripping portion 107 and a pressing portion 108, which is hinged to the gripping portion 107. A return spring 109 is disposed between the pressing portion 108 and the gripping portion 107, with its two ends connected to the pressing portion 108 and the gripping portion 107, respectively. The connecting rod 101 is slidably disposed within the tubular portion 106, with one end of the connecting rod 101 extending out of the tubular portion 106. A hinged rod 110 is hinged to one end of the pressing portion 108, with one end of the hinged rod 110 hinged to the connecting rod 101. The pressing part 108 drives the hinge rod 110 to move, which in turn drives one end of the connecting rod 101 to extend out of the tubular part 106 and compresses the return spring 109.

[0033] The connector 102 is connected to the connecting rod 101. The connector 102 has an annular groove 111. One end of the connecting rod 101 is rotatably connected to two locking blocks 112 that engage with the annular groove 111. A second torsion spring 113 is provided between the locking block 112 and the connecting rod 101. The two ends of the second torsion spring 113 are respectively connected between the locking block 112 and the connecting rod 101. The locking block 112 has two states: moving away and moving closer. When the locking block 112 is located in the tubular part 106, the tubular part 106 limits the locking block 112, and the two locking blocks 112 are in the moving closer state. At this time, the locking block 112 can engage with the annular groove 111. When one end of the connecting rod 101 extends out of the tubular part 106, the locking block 112 extends out of the tubular part 106. Under the action of the second torsion spring 113, the two locking blocks 112 deflect and move away. At this time, the locking block 112 no longer engages with the annular groove 111, and the connector 102 is disengaged from the connecting rod 101.

[0034] The snap-fit ​​block 112 includes a mounting end 114 rotatably connected to one end of the connecting rod 101 and a snap-fit ​​part 115 fixedly connected to the mounting end 114. The snap-fit ​​part 115 has a semi-annular structure for embedding into the annular groove 111. When the two snap-fit ​​blocks 112 are in a close-up state, the snap-fit ​​part 115 is embedded into the annular groove 111 and connected to the connector 102.

[0035] Two fork-shaped members 103 are rotatably connected to the connector 102, and a spreading spring 104 and a damper are disposed between the two fork-shaped members 103. When the connector 102 is located inside the tubular section 106, the two fork-shaped members 103 move closer together under the action of the tubular section 106, compressing the spreading spring 104, at which time the two fork-shaped members 103 can be retracted into the tubular section 106. When the connector 102 extends out of the tubular section 106, the two fork-shaped members 103 slowly deflect under the action of the spreading spring 104 and the damper, causing one end to move away from each other.

[0036] The fork-shaped component 103 includes: a connecting end 116, branch rods 117, a silicone strip 118, and a first torsion spring 119. The connecting end 116 is rotatably mounted on the connector 102. Two branch rods 117 are rotatably mounted on the connecting end 116, and a damper is provided between the branch rods 117 and the connecting end 116. The silicone strip 118 is connected at both ends to the two branch rods 117. The first torsion spring 119 is located between the branch rods 117 and the connecting end 116, and is used to straighten the silicone strip 118 by moving one end of the two branch rods away from each other when no external force is applied. When the connector 102 extends out of the tubular portion 106, the two branch rods 117 slowly deflect and move away from each other under the action of the first torsion spring 119 and the damper, thereby straightening the silicone strip 118.

[0037] The plane perpendicular to the axis of the tubular section 106 is set as the reference plane. The farthest distance between the two farthest parts of the projection of the branch rod 117 on the reference plane is three centimeters. The inner diameter of the tubular section 106 is one centimeter. The closest distance between the two farthest parts of the projection of the branch rod 117 on the reference plane is less than the inner diameter of the tubular section 106.

[0038] The two fork-shaped parts, 103, are made of medical-grade stainless steel.

[0039] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A resilient automatic expander for use within a laparoscope, characterized in that, include: The clamp (100) has a handle (105) at one end and a tubular part (106) connected to the handle (105) at one end; The connecting rod (101) is slidably disposed inside the tubular part (106), with one end for extending out of the tubular part (106); The assembly is opened and connected to one end of the connecting rod (101) extending out of the tubular part (106); The expansion components include: Connector (102) is connected to connecting rod (101); Two sets of fork-shaped parts (103) are provided and are rotatably mounted on the connector (102); A spring (104) is positioned between two fork-shaped members (103), with its two ends connected to the two fork-shaped members (103) respectively, for opening the two fork-shaped members (103).

2. The resilient automatic expander for use in a laparoscope according to claim 1, characterized in that: The fork-shaped member (103) includes: The connecting end (116) is rotatably mounted on the connecting head (102); Branch rods (117) are provided in two sets and are rotatably mounted on the connecting end (116); The silicone strip (118) is connected at both ends to two branch rods (117); A first torsion spring (119) is disposed between the branch rod (117) and the connecting end (116) to straighten the silicone strip (118) by moving one end of the two branch rods (117) away from each other when the two branch rods (117) are not subjected to external force.

3. The resilient automatic expander for use in a laparoscope according to claim 2, characterized in that: The connector (102) has an annular groove (111). One end of the connecting rod (101) is rotatably connected to two locking blocks (112) that engage with the annular groove (111). A second torsion spring (113) is provided between the locking block (112) and the connecting rod (101). The two ends of the second torsion spring (113) are respectively connected between the locking block (112) and the connecting rod (101).

4. The resilient automatic expander for use in a laparoscope according to claim 1, characterized in that: The handle (105) includes a gripping part (107) and a pressing part (108). The pressing part (108) and the gripping part (107) are hinged together. A return spring (109) is provided between the pressing part (108) and the gripping part (107). The two ends of the return spring (109) are respectively connected to the pressing part (108) and the gripping part (107).

5. A resilient automatic expander for use in a laparoscope according to claim 4, characterized in that: The pressing part (108) is hinged to a hinge rod (110) at one end, and the hinge rod (110) is hinged to a connecting rod (101) at one end.

6. The resilient automatic expander for use in a laparoscope according to claim 3, characterized in that: The snap-fit ​​block (112) includes a mounting end (114) rotatably connected to one end of the connecting rod (101) and a snap-fit ​​part (115) fixedly connected to the mounting end (114). The snap-fit ​​part (115) is a semi-annular structure for embedding into the annular groove (111).

7. A resilient automatic expander for use in a laparoscope according to claim 6, characterized in that: The plane perpendicular to the axis of the tubular part (106) is set as the reference plane. The farthest distance between the two farthest parts of the projection of the spreading component on the reference plane is the first dimension, and the closest distance between the two farthest parts of the projection of the spreading component on the reference plane is the second dimension. The first dimension is greater than the inner diameter of the tubular part (106), and the second dimension is less than the inner diameter of the tubular part (106).

8. A resilient automatic expander for use in a laparoscope according to claim 2, characterized in that: The two fork-shaped parts (103) are made of medical-grade stainless steel.

Images