Shell assembly and surgical instrument

Abstract

A housing assembly includes a first housing, a second housing, and a sealing assembly. The first housing is provided with a first edge. The first shell is provided with a first edge, the second shell is provided with a second edge, and the first shell is movably connected with the second shell, so that when the first shell and the second shell are closed, the first edge is in contact with the second edge, and a cavity is formed between the first shell and the second shell. The sealing assembly comprises a concave part and a protruding part which are matched with each other, the concave part is arranged on the first edge, the protruding part is arranged on the second edge, and when the first shell and the second shell are closed, the concave part and the protruding part are connected in an inserted mode to seal the shell assembly. The utility model relates to a surgical instrument which comprises a power unit and the shell assembly.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of medical devices, and in particular to a housing assembly and a surgical device. BACKGROUND

[0002] With the continuous development of laparoscopic surgery, physicians usually use a laparoscopic stapler to perform reconstruction surgery in the stomach, colorectum, etc. The electric stapler is a commonly used laparoscopic surgical device. The electric stapler mainly includes a handle part and a sleeve assembly and an end effector. The handle part includes a power element, which includes a circuit board, a battery, a motor and other electronic components, and has a high manufacturing cost. Through repeated use of the power element, the cost can be reduced, and the burden of discarded electronic components on the environment can be reduced. However, because it contains electronic components, it cannot be sterilized by using ethylene oxide / hot steam, which is a commonly used sterilization method. Therefore, it is necessary to design a housing assembly for sealing the power unit to form a sterile barrier to block the transmission of bacteria from the power element used multiple times out of the housing assembly, and to allow the power element to be used repeatedly. The existing housing assembly of the electric stapler relies on a rubber sealing gasket for sealing. Specifically, a gasket is arranged on the closed surface of the proximal housing and the distal housing of the housing assembly. However, the gasket may be deformed or fall off, which may cause the housing assembly to fail to seal, resulting in contamination or the entire housing being scrapped. CONTENT OF THE UTILITY MODEL

[0003] The present disclosure provides a housing assembly and a surgical device.

[0004] According to a first aspect of the present disclosure, a housing assembly is provided, which includes a first housing, a second housing and a sealing assembly. The first housing is provided with a first edge. The second housing is provided with a second edge, and the first housing is movably connected with the second housing, so that when the first housing and the second housing are closed, the first edge and the second edge are in contact, and a cavity is formed between the first housing and the second housing. The sealing assembly includes a recess and a protrusion that match each other. The recess is arranged on the first edge, and the protrusion is arranged on the second edge. When the first housing and the second housing are closed, the recess and the protrusion are inserted to seal the housing assembly.

[0005] In one embodiment, the recess is configured as a trapezoidal groove, and the protrusion is configured as a trapezoidal protrusion. The trapezoidal protrusion includes a first edge and a second edge that are parallel to each other, the length of the first edge is greater than the length of the second edge, and the first edge is in contact with the second edge. The shape of the trapezoidal groove is adapted to the shape of the trapezoidal protrusion.

[0006] Preferably, the trapezoidal protrusion is provided with an intermediate recess.

[0007] More preferably, the hole depth of the intermediate recess is greater than the protrusion height of the trapezoidal protrusion.

[0008] In one embodiment, the groove depth of the trapezoidal groove is greater than the protrusion height of the trapezoidal protrusion, so that there is a gap between the trapezoidal groove and the trapezoidal protrusion when the trapezoidal groove and the trapezoidal protrusion are plugged together.

[0009] Preferably, the difference between the groove depth and the protrusion height is in the range of 0.1mm to 0.2mm.

[0010] In one embodiment, the thickness of the first edge is greater than or equal to 3mm, the thickness of the second edge is greater than or equal to 3mm, and the thickness of the first edge is equal to the thickness of the second edge.

[0011] In one embodiment, the material of the recess and / or the protrusion is resin or rubber.

[0012] In one embodiment, the recess and the protrusion are configured in a V-shaped structure or a semi-circular structure.

[0013] The present disclosure also provides a surgical instrument, comprising a power unit and the housing assembly in the above embodiments, the housing assembly being detachably mounted to the surgical instrument, and the power unit being accommodated in the cavity.

[0014] The housing assembly according to the embodiments of the present disclosure adopts the recess and the protrusion respectively arranged at the edges of the first housing and the second housing to form a sealing assembly, thereby achieving the effects of sealing and preventing pollution. In addition, the housing assembly according to the embodiments of the present disclosure can achieve the sealing effect without the need for additionally increasing components such as rubber gaskets, which is simple and easy to operate. In some embodiments of the present disclosure, the matching trapezoidal sealing structure is adopted to form a three-dimensional sealing structure on the closed surface of the disposable housing assembly, thereby increasing the total sealing width, making the first housing and the second housing more closely attached together, thereby improving the sealing performance and more effectively isolating the bacteria and dust on the instrument assembly inside the disposable housing assembly. In other embodiments of the present disclosure, the thickness of the closed edges of the distal housing and the proximal housing is thickened, thereby further improving the sealing performance of the housing assembly.

[0015] The examples are described in detail below with reference to the accompanying drawings. More details and advantages of the examples described in detail will become apparent. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present disclosure, but not limit the present disclosure.

[0017] Figure 1 is a schematic view of the housing assembly according to the embodiments of the present disclosure in an unassembled state;

[0018] Figure 2is a schematic view of the housing assembly according to an embodiment of the present disclosure in a closed state;

[0019] Figure 3 is a sectional view of the housing assembly according to an embodiment of the present disclosure along section line 2;

[0020] Figure 4 is Figure 3 a partial enlarged view of

[0021] Figure 5 is a sectional view of the housing assembly according to an embodiment of the present disclosure along section line 1;

[0022] Figure 6 is Figure 5 a partial enlarged view of DETAILED DESCRIPTION

[0023] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present disclosure.

[0024] Unless otherwise defined, technical terms or scientific terms used herein should be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. The terms "first", "second", and similar terms used in the description and the claims of the present patent application do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", "top", "bottom", and the like are used only to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships may also be changed accordingly.

[0025] The terms "proximal" and "distal" are used herein with respect to a clinician manipulating a housing assembly of a surgical instrument. The term "proximal" refers to the portion closest to the clinician, and the term "distal" refers to the portion positioned away from the clinician.

[0026] In order to solve the above technical problems, the present disclosure provides a housing assembly, which includes a first housing, a second housing, and a sealing assembly. The first housing is provided with a first edge. The second housing is provided with a second edge, and the first housing and the second housing are movably connected so that when the first housing and the second housing are closed, the first edge contacts the second edge and a cavity is formed between the first housing and the second housing. The sealing assembly includes a recessed portion and a protruding portion that match each other, the recessed portion is provided on the first edge, and the protruding portion is provided on the second edge, and when the first housing and the second housing are closed, the recessed portion and the protruding portion are plugged into each other to seal the housing assembly.

[0027] The present disclosure is described below by way of specific embodiments. To keep the following description of the embodiments of the present disclosure clear and concise, detailed descriptions of known functions and components may be omitted. When any component of an embodiment of the present disclosure appears in more than one drawing, the component may be represented by the same reference numeral in each drawing.

[0028] Specifically, in the following embodiments, a case is given where the first shell is a distal shell and the second shell is a proximal shell, wherein a recess is provided on the first edge of the distal shell. It should be noted that, according to actual needs, the first shell can be designed as a proximal shell and the second shell can be designed as a distal shell, wherein a recess is provided on the first edge of the proximal shell. In addition, the opening and closing method of the shell assembly is not necessarily proximal-distal opening and closing (i.e., the shell assembly is composed of a proximal assembly and a distal assembly), and the opening and closing method of the shell assembly can also be left-right opening and closing, top-bottom opening and closing, and other feasible two-sided opening and closing, i.e., the first shell can also be one of the left assembly, right assembly, upper assembly, lower assembly, and unilateral assembly.

[0029] Figure 1 is a schematic diagram of a housing assembly in an unassembled state according to an embodiment of the present disclosure, showing a proximal housing and a distal housing. Figure 2 is a schematic diagram of a housing assembly in a closed state according to an embodiment of the present disclosure. Figure 3 FIG2 is a cross-sectional view of a housing assembly along section line 2 according to an embodiment of the present disclosure. Figure 4 yes Figure 3 A partial enlarged view of . Figure 5 1 is a cross-sectional view of a housing assembly along section line 1 according to an embodiment of the present disclosure. Figure 6 yes Figure 5 A partial enlarged view of the Figures 1 to 6As shown, the housing assembly 100 includes a distal assembly 110, a proximal housing 120, and a sealing assembly 200. The housing assembly 100 can be used as a protective housing for the power unit of the handle portion of a surgical instrument. In the embodiment of this invention, it is used as a sterile protective housing for the power unit of an electric stapler. The distal housing 110 and the proximal housing 120 are movably connected. In one embodiment, the top of the distal housing 110 and the top of the proximal housing 120 are hingedly connected via a rotating shaft structure 130. Figure 1 and Figure 2 The rotation axis structure 130 includes a distal housing fixed axis portion 132 provided at the top of the distal housing 110, a proximal housing fixed axis portion 134 provided at the top of the proximal housing, and a fixing pin 136. Therefore, the distal housing 110 can rotate relative to the proximal housing 120 around the rotation axis 130, thereby forming the distal housing 110 and the proximal housing 120 in a closed position (such as Figure 2 There are two states: open (not shown) or open (not shown). Figure 1 As can be seen in the figure, the distal shell 110 is provided with a first edge 112 and the proximal shell 120 is provided with a second edge 122. When the distal shell 110 is closed with the proximal shell 120 via the rotating shaft 130, the first edge 112 and the second edge 122 are in contact, and a cavity (not shown) of the shell assembly 100 is formed between the distal shell 110 and the proximal shell 120. The cavity can be used to accommodate a power unit, which can provide power output to the actuator of the electric stapler. Because it contains electronic components such as circuit boards and batteries, sterilization methods such as ethylene oxide / high-temperature steam cannot be used, and there is a problem of bacterial growth on the reusable power unit. Considering that the power unit is a reusable component, the shell assembly 100 is designed as a sterile protective shell, so that when the distal shell 110 and the proximal shell 120 are in a closed state, the shell assembly 100 is locked to form a sterile barrier, which can block the bacteria on the power unit from being transmitted out of the disposable shell assembly 100. In one embodiment, the housing assembly 100 is made of a hard plastic that is disposable, easy to process, and ensures the strength of the housing assembly 100. In one embodiment, the housing assembly 100 is made of a transparent material to facilitate viewing of the display screen of the power unit inside the housing assembly 100, which displays the operating status of the stapler to the operator.

[0030] Reference again Figures 1 to 6The sealing assembly 200 includes a recess 210 and a protrusion 220 that are matched with each other, the recess 210 is arranged on the first edge 112, the protrusion 220 is arranged on the second edge 122, and the recess 210 and the protrusion 220 are inserted to seal the housing assembly 100 when the distal housing 110 and the proximal housing 120 are closed. In an embodiment, the thickness of the first edge 112 is greater than or equal to 3 mm, the thickness of the second edge 122 is greater than or equal to 3 mm, and the thickness of the first edge is equal to the thickness of the second edge. Considering that the thickness of the proximal housing 120 and the distal housing 110 of the existing electric anastomat is only 2 mm-2.5 mm, the thickness of the first edge 112 of the distal housing 110 and the second edge 122 of the proximal housing 120 according to the present disclosure is increased to be greater than or equal to 3 mm, in other words, only the thickness of the butt joint edges of the proximal housing 120 and the distal housing 110 is increased to be greater than or equal to 3 mm, such a thickness arrangement makes it better to arrange the above-mentioned recess 210 and protrusion 220 on the closed surface of the proximal housing 120 and the distal housing 110, thereby realizing the sealing function of the disposable housing assembly 100. In an embodiment, the thickness of the first edge 112 and the second edge 122 is 3 mm, as shown in Figure 4 In addition, according to actual needs, the thickness of the proximal housing 120 and the distal housing 110 can also be increased as a whole to realize the above-mentioned sealing function. It should be noted that according to actual needs, the recess 210 can be arranged on the second edge 122, and the protrusion can be arranged on the first edge 112. In an embodiment, the materials of the recess 210 and the protrusion 220 are resin or rubber, wherein when the material is rubber, the sealing of the housing assembly 100 is better, and more interference can be ensured. In an embodiment, the recess 210 and the protrusion 220 are configured as a trapezoidal sealing structure that matches each other, specifically, as shown in Figure 4 and Figure 6 The recess 210 is configured as a trapezoidal groove 212, and the protrusion 220 is configured as a trapezoidal protrusion 222, so that the trapezoidal groove 212 on the distal housing 110 can be more closely fitted together to form a firm sealing structure when the trapezoidal protrusion 222 of the proximal housing 120 is inserted. In addition, as shown in Figure 4As shown, the trapezoidal protrusion includes a first edge 2221 and a second edge 2222 which are parallel to each other, the length of the first edge 2221 is greater than the length of the second edge 2222, and the first edge 2221 is connected to the second edge 122. The trapezoidal groove is shaped to match the shape of the trapezoidal protrusion, which facilitates better sealing between the distal housing 110 and the proximal housing 120. The matched trapezoidal sealing structure forms a three-dimensional sealing structure on the closed surface of the disposable housing assembly, thereby increasing the total sealing width, making the first housing and the second housing fit together more tightly, thereby improving the sealing performance and more effectively isolating the bacteria and dust on the instrument assembly inside the disposable housing assembly from being conducted outwards. In another embodiment, according to actual needs, the recess 210 and the protrusion 220 are configured as a V-shaped sealing structure or a semicircular sealing structure that match each other. In one embodiment, referring to Figure 4 and Figure 6 The trapezoidal protrusion 222 is provided with an intermediate recess hole 224. The provision of the intermediate recess hole 224 on the trapezoidal protrusion 222 allows the trapezoidal protrusion 222 to have a deformation space after the distal housing 110 and the proximal housing 120 are closed, and the trapezoidal groove 212 closely fits the trapezoidal protrusion 222, so that the proximal housing 120 and the distal housing 110 form a better sealing closure. In one embodiment, the hole depth of the intermediate recess hole 224 is greater than the protrusion height of the trapezoidal protrusion 222, so that the trapezoidal protrusion 222 has more deformation space, and the trapezoidal groove 212 closely fits the trapezoidal protrusion 222, so that the proximal housing 120 and the distal housing 110 form a better sealing closure.

[0031] In one embodiment, the groove depth of the trapezoidal groove 212 is less than the protrusion height of the trapezoidal protrusion 222 (as shown in Figure 4 At this time, the groove depth D1 of the trapezoidal groove 212 is 1.7 mm, and the protrusion height D2 of the trapezoidal protrusion 222 is 1.5 mm, so that when the trapezoidal groove 212 and the trapezoidal protrusion 222 are inserted, the trapezoidal groove 212 contains a gap 214, thereby allowing the trapezoidal protrusion 222 to have more deformation space during insertion into the trapezoidal groove 212. In one embodiment, according to actual needs, the difference between the groove depth and the protrusion height can be set in the range of 0.1 mm to 0.2 mm. Preferably, the difference between the groove depth and the protrusion height is set to 0.2 mm, as shown in Figure 4 .

[0032] The present disclosure also relates to a surgical instrument, which includes a power unit (not shown) and the housing assembly of any of the above embodiments, the housing assembly being detachably mounted to the surgical instrument, and the power unit being accommodated in the cavity.

[0033] The housing assembly according to embodiments of the present disclosure adopts a trapezoidal sealing structure, which improves the sealing performance of the housing assembly. On the one hand, the trapezoidal sealing structure can make the distal housing and the proximal housing fit more closely together, and the trapezoidal feature of the trapezoidal sealing structure increases the sealing width of the disposable housing assembly on the closed surface, thereby improving the sealing performance and more effectively isolating the bacteria and dust on the internal instrument assembly (such as the power unit) of the disposable housing assembly from being conducted out. On the other hand, the housing assembly does not need to additionally increase components such as rubber gaskets to achieve the sealing effect of the disposable housing. The housing assembly of some embodiments of the present disclosure increases the thickness of the closed edge of the distal housing and the proximal housing, further improving the sealing performance of the housing assembly.

[0034] Although examples of the present disclosure are provided in the foregoing description, those skilled in the art can modify and change the examples without departing from the scope and spirit of the present disclosure. For example, it should be understood that the features of the embodiments herein can be applicable to other embodiments described herein. Therefore, the description is intended to be illustrative rather than restrictive. The disclosure is defined by the appended claims, and all changes to the disclosure that fall within the meaning and range of equivalents of the claims will be included in their scope.

Claims

1. A housing assembly, characterized in that: The housing assembly comprises: a first housing provided with a first edge; a second housing having a second edge, wherein the first housing and the second housing are movably connected so that when the first housing and the second housing are closed, the first edge contacts the second edge and a cavity is formed between the first housing and the second housing; and A sealing assembly comprising a recessed portion and a protruding portion that match each other, wherein the recessed portion is arranged on the first edge and the protruding portion is arranged on the second edge, and when the first shell and the second shell are closed, the recessed portion and the protruding portion are plugged into each other to seal the shell assembly.

2. The housing assembly according to claim 1, wherein: The recessed portion is configured as a trapezoidal groove, and the protruding portion is configured as a trapezoidal protrusion. The trapezoidal protrusion includes a first side and a second side parallel to each other, the length of the first side is greater than the length of the second side, the first side is connected to the second edge, and the shape of the trapezoidal groove is adapted to the shape of the trapezoidal protrusion.

3. The housing assembly according to claim 2, wherein: The trapezoidal protrusion is provided with a middle concave hole.

4. The housing assembly according to claim 3, wherein: The hole depth of the middle concave hole is greater than the protrusion height of the trapezoidal protrusion.

5. The housing assembly according to claim 2, wherein: The depth of the trapezoidal groove is greater than the height of the trapezoidal protrusion, so that when the trapezoidal groove and the trapezoidal protrusion are plugged into each other, a gap exists between the trapezoidal groove and the trapezoidal protrusion.

6. The housing assembly according to claim 5, wherein: The difference between the groove depth and the protrusion height is in the range of 0.1 mm to 0.2 mm.

7. The housing assembly according to claim 1, wherein: The thickness of the first edge is greater than or equal to 3 mm, the thickness of the second edge is greater than or equal to 3 mm, and the thickness of the first edge is equal to the thickness of the second edge.

8. The housing assembly according to claim 1, wherein: The recessed portion and / or the protruding portion are made of resin or rubber.

9. The housing assembly according to claim 1, wherein: The recessed portion and the protruding portion are configured to form a V-shaped structure or a semicircular structure.

10. A surgical instrument, characterized in that: It comprises a power unit and a housing assembly according to any one of claims 1 to 9, wherein the housing assembly is detachably mounted on the surgical instrument, and the power unit is accommodated in the cavity.

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