Endoscope cleaner that can be attached to a trocar

Abstract

An endoscope or camera cleaning device having a jaw extending away from a tube. A sheath extends away from the tube. The sheath has a sidewall that corresponds to a different portion of the circumference of the tube, and the sidewall of the sheath and the sidewall of the jaw are biased toward each other via at least one elastic member. A slider is coupled to the jaw and operable to translate relative to the jaw. A wiper blade is coupled to the slider. The wiper blade has a lower end that extends away from the jaw and beyond a centerline relative to the tube. The wiper blade is operable to engage with a camera that traverses within the mounting tube. The wiper blade traverses the centerline, allowing the camera to pass past the wiper and operable to remove liquid or material from the endoscope or camera.

Description

Technical Field

[0001] [Cross - Reference to Related Applications] This application claims the benefit and priority of U.S. Provisional Patent Application No. 63 / 106,748, filed on October 28, 2020, the content of which is incorporated herein by reference. [Technical Field]

[0002] This disclosure generally relates to a lens cleaner for an endoscope. In at least one example, this disclosure relates to an assembly that is coupled to a trocar and operable to clean an endoscope.

Brief Description of the Drawings

[0003] Embodiments of the present technology are described below with reference to the accompanying drawings, which are presented by way of example only.

[0004] [Figure 1] A diagram showing an example of a device in a state where the camera extends beyond the wiper and the elastic member is extended.

[0005] [Figure 2] A diagram showing a camera extending within a trocar with the device not attached.

[0006] [Figure 3] A diagram showing a contaminated camera stored for cleaning.

[0007] [Figure 4] A diagram showing contaminants left in a prior - art twin - blade design.

[0008] [Figure 5A] Examples of devices having various elastic slider biasing members are shown. [Figure 5B] Examples of devices having various elastic slider biasing members are shown. [Figure 5C]Examples of devices having various elastic slider biasing members are shown.

[0009] [Figure 6] This figure shows an example of a device where the camera makes contact with the wiper connected to the slider, but before it makes contact with the slope.

[0010] [Figure 7] This figure shows an example of a device in a partially stretched state.

[0011] [Figure 8] This figure shows an example of a device after a camera has passed over it.

[0012] [Figure 9] An example of a device shown in the diagram is presented.

[0013] [Figure 10] This is an example of a device with the camera extended, and the device is represented by a line diagram.

[0014] [Figure 11] This figure shows an example of a cross-section of a device including a slider.

[0015] [Figure 12] This figure shows an example of a device that uses a wire spring to close the jaws toward the sheath.

[0016] [Figure 13] This figure shows an example of a device that is integrally formed with a trocar. Detailed description of the invention

[0017] For the sake of simplicity and clarity of illustration, it will be understood that, where appropriate, reference numerals are repeated between different figures to indicate corresponding or similar elements. Further, while specific details are set forth to provide an understanding of the embodiments described herein, it will be understood by those of ordinary skill in the art that the embodiments described herein may be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related features being described. Also, the description is not to be regarded as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale, and in some cases, the ratios of certain components may be exaggerated to better illustrate the details and features of the present disclosure.

[0018] Here, some definitions applied in the present disclosure are presented. Note that "connected" means being directly connected or indirectly connected via intervening components, and is not necessarily limited to a physical connection. "Communicatively connected" is defined as being directly connected or indirectly connected via intervening components, and the connection is not necessarily limited to a physical connection, but is a connection corresponding to the transfer of data between such components. The connection may be such that the objects are permanently connected or releasably connected. "Outside" is a term that refers to the region beyond the outermost boundary of a physical object. In the present disclosure, the terms "comprising", "including", and "having" are used interchangeably. The terms "comprising", "including", and "having" mean including what is thus described, but are not necessarily limited thereto. When a component is described as being "operable" to perform a particular operation, such a configuration can be achieved, for example, by designing hardware to execute that operation.

[0019] The language of claims reciting a set of "at least one" and / or a set of "one or more" indicates that one member of the set or multiple members of the set (in any combination) satisfy the claim. For example, the claim language "at least one of A and B" or "at least one of A or B" means A, B, or A and B. In another example, the claim language "at least one of A, B, and C" or "at least one of A, B, or C" means A, B, C, or A and B, A and C, or B and C, A and B and C. The language of a set of "at least one" and / or a set of "one or more" does not limit the items listed within the set. For example, the claim language "at least one of A and B" or "at least one of A or B" means A, B, or A and B and can additionally include items not listed in the set of A and B.

[0020] In the field of laparoscopic surgery and other minimally invasive surgeries, surgeons rely on a clear view of the surgical site within the patient's abdomen. Observation is performed using a dedicated cylindrical endoscope camera or laparoscope camera passed through a tubular trocar. The present disclosure here uses a phrase camera, and the camera can be an endoscope, laparoscope, or other suitable camera. The trocar is installed in the patient's abdominal wall to secure a path from outside the patent into the abdominal cavity. The trocar also serves as a passage for inserting the cylindrical camera and can be operated while rotating as needed to view the surgical site.

[0021] The lens of the camera may be contaminated by surgical debris, blood, other liquids, or solids. In such cases, lens cleaning is necessary. To clean the camera, the endoscope or laparoscope must be removed from the trocar and cleaned by a surgical assistant. After that, the surgical assistant must reinsert the endoscope or laparoscope for the surgery to continue.

[0022] This disclosure provides an improved lens cleaning device. The key feature of this disclosure is that the wiper edge crosses the center of the camera lens. By crossing the center line, a single wiper edge can sweep the entire field of view of the camera, leaving no residue.

[0023] The device includes a mounting tube that can be operated to press-fit onto the distal end of a trocar. The mounting tube may be configured to be operable for a desired trocar. The device may also include a flexible jaw member that connects the mounting tube to the jaw. The jaw may be operable to swing laterally to provide a path for a camera to pass through. The jaw may further include a ramp on which the camera passes. The device may further include a slider that moves axially along the inside of the jaw.

[0024] The device comprises a single jaw with a single slider. The single slider has a wiper that crosses its center. In this device, the angular movement of the jaw is increased to accommodate an increase in the lateral movement of the slider. In one example, the device has a sheath that extends from or is integrally formed with the mounting tube. It may have an elastic member for tightly retracting the jaw into the sheath.

[0025] Figure 1 shows an example of device 100 in a state 203 where the camera 150 extends beyond a wiper blade (not shown) and the elastic member 120 is extended. Device 100 can be adapted to be mounted on the open end of a trocar tube. Device 100 may include a substantially cylindrical mounting tube 102 that is operable to connect to the open end of the trocar tube. Device 100 may also include a jaw 104 that extends away from the mounting tube 102 and has a substantially conical distal end 106 located away from the mounting tube 102, the jaw 104 having a side wall 114 corresponding to a portion of the circumference of the tube 102. The device 100 may include a sheath 108 having a distal end 110 that extends away from the mounting tube 102 and toward a substantially conical distal end 106 of the jaw 104, the sheath 108 having side walls 112 corresponding to another portion of the circumference of the tube 102, and the side walls 112 of the sheath 108 and the side walls 114 of the jaw 104 are biased toward each other via at least one elastic member 120.

[0026] Figure 2 shows the camera extending within the trocar 10 with no device attached. As shown, the camera 150 can be positioned such that a slider 130 (shown as an illusion for illustrative purposes only) and associated wiper (not shown) cover all or substantially a large portion of the lens surface 154 of the camera 150. As shown, there may be fluid or substance 152 accumulating on the lens surface 154 of the camera 150. The transverse centerline 101 indicates a point on the camera 150 where the wiper is positioned. By covering a distance beyond the transverse centerline 101, the lens surface 154 of the camera 150 can be cleaned without leaving any fluid or substance 152 behind. Generally, the fluid and / or substance 152 may be bodily fluids, tissues, muscles, fats, etc., found during surgery. These fluids and / or substances 152 can be difficult to clean. Furthermore, conventionally, cleaning fluids and / or substances 152 requires removing the camera 150 from the patient's body cavity, which causes temperature changes and makes cleaning the lens surface 154 of the camera 150 difficult. As shown in the figure, the slider 130 can be designed to move upward 302 beyond the lateral centerline 101. Furthermore, the slider 130 can be configured to push relative to the camera 150 in direction 304. As described herein, the device 100 can be coupled to a trocar 10, or the device 100 can be formed integrally with the trocar 10. When the device 100 is coupled to a trocar 10, the device can be sold separately for various different trocars 10.

[0027] Figure 3 shows a camera 150 that is contaminated with fluid and / or substance 152 and is housed for cleaning. The illustrated device 100 is operable to include a sheath 108 having a distal end 110 and a jaw 104 having a substantially conical distal end 106. The device includes a slider 130 to which a wiper 140 is attached. The wiper 140 may be made of a different material from the slider. This allows the wiper 140 to be made of a material designed to remove fluid and / or substance 152 from the camera 150. Details regarding the operation of the slider 130, wiper 140 and jaw 104 will be described later. This disclosure is intended to show that one or more of the features described herein in relation to one embodiment may be implemented in relation to other embodiments. For example, an elastic member may be implemented in all devices 100. In other examples, the elastic member may be replaced with a wire spring while retaining other features as described herein.

[0028] Figure 4 shows the contaminants remaining in the prior art twin-blade design. This twin-blade design included a first blade 412 and a second blade 414 connected in deference to a first opening member 404 and a second opening member 406. The first blade 412 had a tip 416 connected to it. In the illustrated example, the first opening member 404 and the second opening member 406 are connected to the tube 402 of the trocar.

[0029] Figures 5A to 5C show examples of devices having various elastic slider biasing members. Device 100 may include a slider 130 connected to a jaw 104 and operable to translate relative to the jaw 104. Device 100 can be adapted to be mounted on the open end 22 of the tube of the trocar 12. Device 100 may include a substantially cylindrical mounting tube 102 operable to be connected to the open end 22 of the trocar tube 12. Device 100 may also include a jaw 104 that extends away from the mounting tube 102 and has a substantially conical distal end 106 located away from the mounting tube 102, the jaw 104 having a side wall 114 corresponding to a portion of the circumference of the tube 102. The device 100 may include a sheath 108 that extends away from the mounting tube 102 and has a distal end 110 that extends toward the substantially conical distal end 106 of the jaw 104, the sheath 108 having side walls 112 corresponding to another portion of the circumference of the tube 102, and the side walls 112 of the sheath 108 and the side walls 114 of the jaw 104 are biased toward each other via at least one elastic member 120.

[0030] The wiper blade 140 may be connected to the slider 130. The wiper blade 140 may have a lower edge 142 that extends away from the jaw 104 and extends beyond the centerline 103 relative to the mounting tube 102. The wiper blade 140 may be operable to engage with a camera 150 that crosses the mounting tube 102, thereby allowing the wiper blade 140 to cross the centerline 103 and the camera 150 to pass over the wiper 140, thereby operable to remove fluid and / or material (not shown) from the camera 150. The wiper blade 140 may be biased toward the camera 150 by an elastic slider biasing member 160. An elastic member 120 may bias the jaw 104 toward the sheath 108. Furthermore, a flexible jaw member 180 may allow the jaw 104 to pivot relative to the mounting tube 102. In at least one example, the flexible jaw member 180 can bias the jaw 104 toward the sheath 108.

[0031] The at least one elastic member 120, as illustrated, may be made of rubber or metal. In some examples, a metal member is preferable because its ability to be autoclaved allows the device 100 to be reused. In other examples, at least one elastic member 120 made of rubber and / or polymer can be used to reduce costs so that the device 100 is disposed of according to normal standards. As illustrated, the at least one elastic member 120 includes two elastic members. In other examples, a single elastic member 120 may be implemented.

[0032] The device 100 may include a sheath 108. The sheath 108 may extend to partially overlap the conical distal end 106 of the jaw 104. The sheath 108 may have a tapered portion 214 at its distal end 110 having an outward slope 216 substantially identical to the slope 222 of the conical distal end 106 of the jaw 104. The substantially conical distal end 106 of the jaw may have a chisel-like shape 224.

[0033] The device 100 may include an elastic slider biasing member 160 that can be operated to bias the wiper 140 toward the opening of the mounting tube 102. The elastic slider biasing member 160 is shown in Figure 5A as a polymer having elastic properties. The elastic slider biasing member 160 may be connected to a flexible jaw member 180 at a first end 162 and to a slider 130 at a second end 164.

[0034] In another example, the elastic slider biasing member 160 can take the form of a compression spring 163 (Figure 5B). In Figure 5B, the elastic slider biasing member 160 is a compression spring 163 that is operable to be housed in a cavity 107 formed in the substantially conical distal end 106 of the jaw 104 and a cavity 132 formed in the slider 130.

[0035] In yet another example, the elastic slider biasing member 160 may take the form of a metal tension spring 161 (Figure 5C). Although these examples are shown mutually exclusive in the drawings, this disclosure intends that the elastic slider biasing member 160 may include one or more of the different examples described herein.

[0036] As shown in Figures 5A-5C, the device 100 may have a ramp 170 connected to the jaw 104, which is operable to be contacted by a camera 150 to open the jaw 104, as shown in Figure 7. The ramp 170 may be formed integrally with the jaw 104. The end 172 of the ramp 170 closest to the mounting tube 102 is positioned closer to the mounting tube 102 than the wiper blade 140 in the retracted state 201, and the wiper blade 140 is positioned so that, in the retracted state 201, it contacts the camera 150 before the camera 150 contacts the ramp 170. In one example, the ramp 170 may be connected between a slider 130 and the jaw 104.

[0037] The device 100 may have a flexible jaw member 180 connected to the jaw 104. The flexible jaw member 180 may be operable to allow the jaw 104 to move relative to the mounting tube 102. The substantially cylindrical mounting tube 102 may have an inner diameter 210 of a corresponding size to provide a press-fit connection with the open end 22 of the trocar tube 12.

[0038] Figure 6 shows an example of device 100 at the point when the camera 150 contacts the wiper 140 connected to the slider 130, but before the camera 150 contacts the slope 170. As shown, the elastic slider member 120 pulls the slider 130 toward the camera 150 so that the wiper 140 contacts the camera lens surface 154. As shown, the lower edge 142 of the wiper contacts the camera lens surface 154. The position where the wiper 140 contacts the camera lens surface 154 is such that the opposite end of the slider 130 is at a distance of 133 from the inner surface 306 of the conical distal end 106 of the jaw 104. The lower edge 142 of the wiper is located at a distance of 143 from the centerline 103 of the mounting tube 102 relative to the jaw 104.

[0039] Figure 7 shows an example of device 100 in a partially extended state 203. As shown, device 100 has a flexible jaw member 180 connected to the jaw 104. The flexible jaw member 180 is operable to allow the jaw 104 to move relative to the mounting tube 102. As shown, an angle α can be formed between the center line 103 and the plane of the jaw 105. An elastic slider biasing member 160 is connected to the flexible jaw member 180 at a first end 162 and to the slider 130 at a second end 164. The slider 130 is operable to slide relative to the jaw 104 in substantially the same plane 105 as the jaw 104. The jaw 104 can remain open relative to the mounting tube 102 until the camera passes beyond the slider 130 and the wiper 140.

[0040] When the jaw 104 opens, the elastic member 120 pulls the jaw 104 toward the sheath 108. As shown in the figure, the plane 105 of the jaw 104, which extends through the tip of the conical distal end 106, forms an angle α with respect to the centerline 103 of the mounting tube 102.

[0041] Figure 8 shows an example of the device 100 in the state 242 through which the camera has passed. As shown, the slider extends such that a distance 244 is formed between the slider 130 and the conical distal end 106 of the jaw 104. As shown, the elastic member 120 is in the state 242 through which the camera has passed, biasing the jaw 104 toward the sheath 108. Furthermore, the total travel distance of the lower edge 142 of the wiper blade 142 can be described as the camera travel distance 246. As shown, the slope 170 is in contact with the upper edge of the camera. Furthermore, the elastic slider biasing member 160 is further extended than that shown in Figure 7. An angle θ is formed between the plane 105 of the jaw 104 passing through the tip of the conical distal end 106 and the centerline 103 of the mounting tube 102.

[0042] Figure 9 is a diagram illustrating an example of the device 100 in its stowed state 201. As can be seen, the device includes a flexible jaw member 180 located between the jaw 104 and the mounting tube 102. The jaw 104 is located above the sheath 108. The mounting tube is connected to the trocar tube 12. The slider 130 is shown by a dashed line, illustrating an example in which at least one channel 270 is formed on the slider 130. The at least one channel 270 is operable to allow the slider 130 to move relative to the jaw 104. The jaw 104 may have a corresponding projection (not shown) extending into the at least one channel 270.

[0043] Figure 10 shows an example of device 100 in an extended state 242, with device 100 represented by a line diagram. As shown, the camera 150 extends beyond device 100. The slider 130 and wiper 140 are positioned such that the wiper 140 contacts the outer surface of the camera 150 closest to the jaw 104. As shown, the jaw 104 and the conical distal end 106 extend away from the sheath 108 so that the camera 150 can pass through them. Furthermore, the flexible jaw member 180 is bent so that the jaw 104 can pivot relative to the mounting tube.

[0044] Figure 11 shows an example of a cross-section of device 100 including a slider 130. The example in Figure 11 implements a different arrangement of channels and protrusions compared to Figures 9 and 10. The implementation of the different arrangement can be substituted for the rest of the description. As shown, the slider 130 includes a protrusion 136 that is housed in a corresponding slot 260 formed in the jaw 104. Furthermore, the slider 130 has a channel 138 formed therein to house an elastic slider biasing member 160. As shown, the flexible jaw member 180 is located at the top, followed by the jaw 104, and then the sheath. Furthermore, the slider 130 extends below the transverse centerline 101. By extending below the transverse centerline, the slider allows the wiper to extend correspondingly by the same distance below the transverse centerline.

[0045] Figure 12 shows an example of a device that uses a wire spring 250 to close the jaws 104 toward the sheath 108. The wire spring 250 is used in place of the elastic member 120 shown in the previous figure. As shown, the conical distal end 106 extends away from the sheath 108 so that a camera can pass through it. Other features of the device 100 can also be implemented in this example.

[0046] Figure 13 shows an example in which device 100 is integrally formed with trocar 10. The example shown in Figure 13 is most similar to the example in Figure 5A, but embodiments in which device 100 is integrally formed with trocar 10 may implement other features as described above instead of those shown. As shown, trocar 10 includes a tube 12. Trocar 10 may also include jaws 104 that extend away from the tube 12 and have a substantially conical distal end 106 located away from the tube 12. The jaws 14 have side walls 114 corresponding to a portion of the circumference of the tube 12.

[0047] The trocar 10 may include a sheath 108 that extends away from the tube 12 and has a distal end 110 that extends toward a substantially conical distal end 106 of the jaw 104. The sheath 108 has side walls 112 corresponding to another portion of the circumference of the tube 12, and the side walls 112 of the sheath and the side walls 114 of the jaw 104 are biased toward each other via at least one elastic member 120.

[0048] The trocar 10 may include a slider 130 connected to the jaw 104 and operable to translate relative to the jaw 104. Furthermore, the trocar 10 may include a wiper blade 140 connected to the slider 130. The wiper blade 140 may have a lower edge 142 that extends away from the jaw 104 and extends beyond the centerline 103 relative to the tube 12. The wiper blade 140 is operable to be engaged by a camera 150 that traverses within the tube 12. The wiper blade 140 is operable to cross the centerline 103, allowing the camera 150 to pass over the wiper 140 and to remove fluid and / or material from the camera 150. As illustrated, the device 100 includes a flexible jaw member 180. Furthermore, the wiper 140 may be biased toward the camera by an elastic slider biasing member 160. Other examples of biasing members described herein may be used instead of the elastic slider biasing member 160.

[0049] The embodiments shown and described above are for illustrative purposes only. While numerous features and advantages of the technology, along with structural and functional details of the Disclosure, are shown in the above description, the Disclosure is merely illustrative, and modifications may be made to the details, particularly to the shape, size, and arrangement of components within the principles of the Disclosure, to the full extent indicated by the broad general meaning of the terms used in the appended claims. Therefore, it will be understood that the embodiments described above are modifiable within the scope of the appended claims.

[0050] Examples of this disclosure include:

[0051] Embodiment 1: A device adapted to be connected to a trocar, comprising: a mounting tube operable to be connected to the open end of a trocar tube; a jaw extending away from the mounting tube, the jaw having a side wall corresponding to a portion of the circumference of the tube; a sheath extending away from the mounting tube, the sheath having a side wall corresponding to another portion of the circumference of the tube, the side wall of the sheath and the side wall of the jaw being biased toward each other via at least one elastic member; a slider connected to the jaw and operable to translate toward the jaw; and a wiper blade connected to the slider, the wiper blade extending away from the jaw and having a lower edge extending beyond a centerline toward the mounting tube, wherein the wiper blade is operable to be engaged by a camera traversing the mounting tube, thereby the wiper blade crossing the centerline, allowing the camera to pass beyond the wiper, and is operable to remove fluid and / or material from the camera.

[0052] Embodiment 2: A trocar device comprising: an operable tube; a jaw extending away from the tube, the jaw having a side wall corresponding to a portion of the circumference of the tube; a sheath extending away from the tube, the sheath having a side wall corresponding to another portion of the circumference of the tube, the side wall of the sheath and the side wall of the jaw being biased toward each other via at least one elastic member; a slider connected to the jaw and acting translationally toward the jaw; and a wiper blade connected to the slider, the wiper blade extending away from the jaw and having a lower edge extending beyond a centerline toward the tube, wherein the wiper blade is operable to be engaged by a camera traversing the tube, thereby the wiper blade crossing the centerline, allowing the camera to pass beyond the wiper, and is operable to remove fluid and / or material from the camera.

[0053] Embodiment 3: The device according to any one of Embodiments 1 to 2, wherein the tube is substantially cylindrical.

[0054] Embodiment 4: The device according to any one of Embodiments 1 to 3, wherein the jaw has a substantially conical distal end located away from the tube.

[0055] Embodiment 5: The device according to any one of Embodiments 1 to 4, wherein the sheath has a distal end that extends toward the substantially conical distal end of the jaw.

[0056] Embodiment 6: The device according to any one of Embodiments 1 to 5, further comprising an elastic slider biasing member that can be operated to bias the wiper toward the opening of the tube.

[0057] Embodiment 7: The device according to Embodiment 6, further comprising a ramp connected to the jaw, the ramp being in contact with the camera and operable to open the jaw.

[0058] Embodiment 8: The device according to Embodiment 7, wherein the slope is integrally formed with the jaw.

[0059] Embodiment 9: The device according to Embodiment 7, wherein the end of the ramp closest to the tube is located closer to the tube than the wiper blade when retracted, and the wiper blade is positioned such that, when retracted, it contacts the camera before the camera contacts the ramp.

[0060] Embodiment 10: The device according to Embodiment 7, wherein the slope is connected between the slider and the jaw.

[0061] Embodiment 11: The device according to Embodiment 6, further comprising a flexible jaw member connected to the jaw, wherein the flexible jaw member is operable to allow the jaw to move relative to the tube.

[0062] Embodiment 12: The device according to Embodiment 11, wherein the elastic slider biasing member is connected to the flexible jaw member at a first end and to the slider at a second end, and the slider is operable to slide against the jaw in substantially the same plane as the jaw.

[0063] Embodiment 13: The device according to Embodiment 12, wherein the elastic slider biasing member is a metal tension spring.

[0064] Embodiment 14: The device according to Embodiment 12, wherein the elastic slider biasing member is a compression spring and is operable to be housed in a cavity formed at the substantially conical distal end of the jaw and a cavity formed in the slider.

[0065] Embodiment 15: The device according to any one of Embodiments 1 to 14, wherein the substantially cylindrical tube has an inner diameter of a corresponding size to provide a press-fit connection with the open end of the trocar tube.

[0066] Embodiment 16: The device according to any one of Embodiments 1 to 15, wherein the at least one elastic member comprises two elastic members.

[0067] Embodiment 17: The device according to any one of Embodiments 1 to 16, wherein at least one of the elastic members is made of rubber.

[0068] Embodiment 18: The device according to any one of Embodiments 1 to 17, wherein at least one of the elastic members is made of metal.

[0069] Embodiment 19: The device according to any one of Embodiments 1 to 18, wherein the sheath extends so as to partially overlap the distal end of the cone of the jaw.

[0070] Embodiment 20: The device according to Embodiment 19, wherein the sheath has a tapered portion at its distal end having an outer slope substantially identical to the slope of the conical distal end of the jaw.

[0071] Embodiment 21: The device according to any one of Embodiments 1 to 20, wherein the substantially conical distal end has a chisel-like shape.

Claims

1. A device adapted to be attached to the open end of a trocar tube, A substantially cylindrical mounting tube that can be operated to connect to the open end of the trocar tube, A jaw extending away from the mounting tube and having a substantially conical distal end located away from the mounting tube, wherein the jaw has a side wall corresponding to a portion of the circumference of the mounting tube, A sheath having a distal end that extends away from the mounting tube and toward the substantially conical distal end of the jaw, wherein the sheath has side walls corresponding to another portion of the circumference of the mounting tube, and the side walls of the sheath and the side walls of the jaw are biased toward each other via at least one elastic member, A slider connected to the jaw and operable to move in translation with respect to the jaw, A wiper blade connected to the slider, the wiper blade having a lower edge that extends away from the jaw and beyond the centerline of the mounting tube, The wiper blade is operable to engage with a camera that crosses a mounting tube, thereby allowing the wiper blade to cross a centerline, enabling the camera to pass beyond the wiper blade, and to be operable to remove fluid and / or material from the camera.

2. The device according to claim 1, further comprising an elastic slider biasing member that can be operated to bias the wiper blade toward the opening of the mounting tube.

3. The device according to claim 2, further comprising a ramp connected to the jaw, wherein the ramp is contacted by the camera and operable to open the jaw.

4. The device according to claim 3, wherein the slope is formed integrally with the jaw.

5. The device according to claim 3, wherein the end of the ramp closest to the mounting tube is in a position closer to the mounting tube than the wiper blade when stored.

6. The device according to claim 3, wherein the slope is connected to the jaw between the slider and the jaw.

7. The device according to claim 2, further comprising a flexible jaw member connected to the jaw, wherein the flexible jaw member is operable to allow the jaw to move relative to the mounting tube.

8. The device according to claim 7, wherein the elastic slider biasing member is connected to the flexible jaw member at a first end and to the slider at a second end, and the slider is operable to slide against the jaw in substantially the same plane as the jaw.

9. The device according to claim 8, wherein the elastic slider biasing member is a metal tension spring.

10. The device according to claim 8, wherein the elastic slider biasing member is a compression spring and is operable to be housed in a cavity formed at the substantially conical distal end of the jaw and a cavity formed in the slider.

11. The device according to claim 1, wherein the substantially cylindrical mounting tube has an inner diameter of a corresponding size to provide a press-fit connection with the open end of the trocar tube.

12. The device according to claim 1, wherein the at least one elastic member includes two elastic members.

13. The device according to claim 1, wherein the at least one elastic member is made of rubber.

14. The device according to claim 1, wherein the at least one elastic member is made of metal.

15. The device according to claim 1, wherein the sheath extends so as to partially overlap the conical distal end of the jaw.

16. The device according to claim 15, wherein the sheath has a tapered portion at its distal end having an outward slope substantially identical to the slope of the conical distal end of the jaw.

17. The device according to claim 1, wherein the substantially conical distal end has a chisel-like shape.

18. It is a trocar, Tube and, A jaw extending away from the tube and having a substantially conical distal end located away from the tube, wherein the jaw has a side wall corresponding to a portion of the circumference of the tube, A sheath having a distal end that extends away from the tube and toward the substantially conical distal end of the jaw, wherein the sheath has side walls corresponding to another portion of the circumference of the tube, and the side walls of the sheath and the side walls of the jaw are biased toward each other via at least one elastic member, A slider connected to the jaw and operable to move in translation with respect to the jaw, A wiper blade connected to the slider, the wiper blade having a lower edge that is separated from the jaw and extends beyond the centerline of the tube, The wiper blade is operable to engage with a camera traversing the inside of the tube, thereby allowing the wiper blade to cross the centerline, enabling the camera to pass beyond the wiper blade, and to be operable to remove fluid and / or material from the camera, in a trocar.

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