RESECTION DEVICE COMPRISING A HOUSING PROVIDED WITH A FIXATION PORTION - Patent application

Abstract

An ablation device for removing cellular tissue, comprising a housing provided with a stationary portion. The stationary portion is configured to be placed on the cellular tissue such that a closed space is formed between the cellular tissue and an inner surface of the stationary portion. The stationary portion is further configured to fixedly hold the cellular tissue near the inner surface by removing air from the closed space via an air exhaust means. The ablation device further comprises a cutting element movably disposed within the housing such that the cutting element is movable between a retracted position and an extended position relative to the stationary portion. The cutting element comprises an electrode disposed at a distal end of the cutting element and configured to cut a section of the cellular tissue held by the stationary portion when the cutting element is in the extended position.

Description

[Technical field]

[0001] The present invention relates to an ablation device for removing cellular tissue, the ablation device comprising a housing provided with a fixing part. [Background technology]

[0002] Electrosurgical tools use electrical current passed through tissue to cut, coagulate, desiccate or fulgurate the tissue. Electrosurgical tools generate high frequency electrical current and transmit the current to the patient's body via electrodes. The use of electrosurgical tools produces electrosurgical smoke. Surgical smoke contains harmful organic and inorganic compounds. In other words, surgical smoke contains harmful aerosolized particles. In addition to the patient, these aerosolized particles are harmful to medical personnel when inhaled. Furthermore, the aerosolized particles may contain bacteria, viruses or viral DNA from the treated tissue. This may lead to the transmission of pathogens to the surroundings.

[0003] Surgical masks do not adequately filter the harmful components of surgical smoke, and furthermore, surgical masks often fit loosely, allowing aerosolized particles to bypass all filtering capabilities of the surgical mask and be inhaled. Summary of the Invention [Problem to be solved by the invention]

[0004] It is an object of the present invention to provide an ablation device which eliminates or reduces the emission of surgical smoke.It is a further object of the present invention to provide an ablation device which has improved handling. [Means for solving the problem]

[0005] The present invention provides for this purpose an ablation device for removing cellular tissue, comprising a housing provided with a stationary part configured to be placed on the cellular tissue such that a closed space is formed by the cellular tissue and an inner surface of the stationary part. The stationary part is further configured to hold the cellular tissue stationary by removing air from the closed space via an air exhaust means. The ablation device further comprises a cutting element movably arranged in the housing such that the cutting element is movable between a retracted position and an extended position relative to the stationary part. The cutting element comprises an electrode arranged at a distal end of the cutting element and configured to cut a section of the cellular tissue held by the stationary part when the cutting element is in the extended position. By removing air from the closed space formed by the tissue and the fixation portion, the air pressure within the closed space is reduced. In this manner, at least a partial vacuum is created. The partial vacuum forces the tissue into the fixation portion. In this manner, the tissue is held by the fixation portion. In this manner, the fixation portion substantially prevents the tissue from moving during the surgeon's procedure. This reduces the chance of the surgeon accidentally slipping up while manipulating the resection device. Additionally, the quality of the cut may be improved and the amount of tissue removed may be limited to what is needed. This improves overall patient recovery rates. An added advantage is that the surgical smoke generated is contained within the chamber when cutting tissue, which greatly reduces or even completely eliminates the spread of the generated smoke, thereby reducing the risk of harmful pathogens.

[0006] Preferably, the cutting element is translatable relative to the housing along an axis A, with axis A corresponding to a longitudinal direction of the housing. Because the cutting element is translatable relative to the housing, the cutting depth of the cutting element can be efficiently controlled.

[0007] Preferably, the stationary portion comprises at least one upstanding wall at an open end thereof having an edge configured to contact the tissue, and in the extended position the cutting element does not extend beyond the edge of the stationary portion. Preferably, the at least one upstanding wall comprises a peripheral wall, the edge having a substantially circular shape. More preferably, the fixing portion is substantially cup-shaped.

[0008] Preferably, the cutting element is translatable over a distance measured along axis A of at least 3 mm, preferably at least 6 mm, more preferably at least 9 mm.

[0009] Preferably, the cutting element is rotatable along an axis A of the housing. In this way, the operator can determine the cutting direction and the total size of the cut in a simple manner, which allows for precise removal of only selective sections of tissue, thus avoiding the removal of excessive amounts of tissue, which improves patient care and allows for a quicker patient recovery.

[0010] Preferably, the cutting element is rotatable between a plurality of indicated cutting positions, each indicated cutting position representing a respective section of tissue to be cut. In this manner, visual feedback is provided to the surgeon while manipulating the resection device, and because the cutting element is rotatable between a number of indicated cut positions, the cutting orientation required to remove the entire portion of the tissue being cut can be easily maintained. In other words, when a surgeon examines a patient and knows the location of the tissue that needs to be removed thereafter, the surgeon can place a resection device on the tissue and use multiple indicated cut locations to remove only the necessary tissue that corresponds to each cut location. Because the tissue is held stationary in a fixed portion, the surgeon can rely on multiple indicated cut locations to efficiently remove only the desired portion of tissue, improving histopathological analysis after tissue removal and reducing total examination time. Preferably, the plurality of indicated cutting locations comprises four quadrants (I, II, III, IV).

[0011] Preferably, at least the fixation portion is made from a transparent material, which allows an operator to continuously inspect the tissue fixedly held in the fixation portion.

[0012] Preferably, the resection device further comprises a guide rod extending outwardly along axis A toward the distal end of the housing and configured for insertion into a body cavity, such as the cervix of a female patient, for aligning the resection device with a wall of the body cavity.

[0013] Preferably, the loop electrode is a bipolar electrode comprising first and second sub-electrodes. The advantage here is based on the insight that a typical monopolar electrode circulates current from the active electrode through multiple layers of the body towards the surface before returning to the generator. This can cause iatrogenic burns or interfere with electronic devices such as pacemakers. By using a bipolar electrode, the risk of interference with other electronic devices is reduced or virtually eliminated. Furthermore, coagulation is performed more efficiently and burns to the surrounding tissue are reduced. A further advantage is based on the inventors' insight that when using bipolar electrodes, substantially less surgical smoke is generated due to the lower operating temperatures, further reducing the risk of harmful pathogens.

[0014] Preferably, the electrode forms a first sub-electrode and the guide rod forms a second sub-electrode.

[0015] Preferably, the electrode is a loop electrode.

[0016] Preferably, the loop electrodes extend radially over a distance, as viewed in axial projection, of at least 3 mm, preferably at least 5 mm, more preferably at least 10 mm.

[0017] Preferably, the housing comprises an elongated intermediate portion, the fixing portion being disposed at a distal end of the elongated intermediate portion and operably connected to the elongated intermediate portion such that air can be removed from the enclosed space via the air exhaust means through the intermediate portion.

[0018] Preferably, the air exhaust means is formed by an elongate intermediate portion spaced apart from and arranged around the cutting element such that an air removal channel is formed, the intermediate portion comprising an air exhaust interface connectable to an air pump. More preferably, the one or more further air removal channels are formed by the elongated intermediate portion.

[0019] Preferably, there is further provided an actuating element connected to the cutting element, the actuating element being disposed at the proximal end of the housing and configured to move the cutting element between the retracted and extended positions and / or to rotate the cutting element along axis A.

[0020] Preferably, the actuating element is arranged in an actuator housing section comprising an actuator housing wall, the actuator housing wall comprising a plurality of positioning projections configured to be engaged by position limiting elements of the actuating element. This may improve handling of the ablation device, at least in terms of stability, position feedback and / or orientation feedback. Preferably, the plurality of positioning projections define a plurality of axially oriented translation channels and tangentially oriented orientation channels.

[0021] Preferably, the position limiting element is in sliding engagement with the plurality of positioning protrusions such that the actuating element is moved and positioned relative to the housing.

[0022] Preferably, the actuator housing wall may be provided on its exterior with indicators corresponding to a plurality of axially oriented translation channels and tangentially oriented orientation channels.

[0023] Preferably, the actuator housing section comprises a plurality of slots disposed at a proximal end of the housing and arranged side by side in a longitudinal direction along the axis A, and the resection device further comprises a positioning abutment element configured to prevent the cutting element from moving past the positioning abutment element, the positioning abutment element being positionable within one of the plurality of slots. Since the slots are arranged side by side in the longitudinal direction, cooperation between the positioning abutment element and the actuator housing section having a plurality of slots allows the cutting depth of the cutting element to be set quickly and easily. More preferably, the plurality of slots form a through hole and the positioning abutment element comprises an abutment portion intended to extend through the slot when the positioning abutment element is positioned on the actuator housing section, the abutment portion being configured to prevent the cutting element from moving beyond the abutment portion. In this manner, when the cutting element is moved from the retracted position to the extended position, the cutting element will engage the abutment, thereby limiting movement of the cutting element.

[0024] Preferably, the positioning abutment element is clippable onto the housing, preferably using a flexible or spring-loaded clip configured to engage the housing. This allows the cutting depth of the resection device to be easily set to a predetermined value by fixing the positioning abutment element to the housing, in particular to the actuator housing section thereof, using the clip.

[0025] Preferably, the fixed portion is configured for releasable attachment to a distal end of the housing. The releasable fixation portion allows for removal of cut tissue fixedly held in the fixation portion without the further use of, for example, forceps.

[0026] Preferably, the fixed part is provided with one or more air grooves on its inner surface, the one or more air grooves extending across the inner surface. The air grooves substantially increase the suction area of ​​the fastening part, thus allowing the tissue to be held uniformly by the fastening part in an improved manner.

[0027] Preferably, the fixed portion is provided with a plurality of scale indicators, the plurality of scale indicators being evenly distributed along an arc on the fixed portion. The use of fixation parts with such scale indicators provides visual feedback to the surgeon in a simple manner, thereby reducing risks to the patient and improving patient recovery after the intervention. [Brief description of the drawings]

[0028] The accompanying drawings are used to illustrate presently preferred, non-limiting, exemplary embodiments of the device of the present invention. These and other advantages of the features and objects of the present invention will become more apparent and the present invention will be better understood from the following detailed description when read in conjunction with the accompanying drawings.

[0029] [Figure 1A] 1A and 1B show cross-sectional views of an exemplary embodiment of an ablation device in retracted and extended positions. [Figure 1B] 1A and 1B show cross-sectional views of an exemplary embodiment of an ablation device in retracted and extended positions. [Diagram 2] FIG. 2 shows a cross-sectional view of a further exemplary embodiment of an ablation device. [Figure 3A] FIG. 3A shows a front view of the ablation device taken in a plane perpendicular to the longitudinal direction of the ablation device. [Figure 3B] FIG. 3B shows a front view of the ablation device taken in a plane perpendicular to the longitudinal direction of the ablation device. [Figure 4A] FIG. 4A shows a schematic diagram of an exemplary embodiment of an actuation element. [Figure 4B] FIG. 4B shows a schematic diagram of an exemplary embodiment of an actuation element. [Figure 4C] FIG. 4C shows a schematic diagram of an exemplary embodiment of an actuation element. [Diagram 5] FIG. 5 illustrates a perspective view of an exemplary embodiment of an ablation device. [Figure 6] FIG. 6A shows a side view of the exemplary embodiment of FIG. 5, and FIGS. 6B and 6C show enlarged portions of the distal end of a cutting element comprising an electrode according to an exemplary embodiment. [Figure 7] FIG. 7 illustrates a BB cross-sectional view of the elongated intermediate portion shown in FIG. 5 according to an exemplary embodiment. [Figure 8] 8A and 8B are front views of the fixed portion according to a preferred embodiment. [Figure 9] FIG. 9 shows a perspective view of a fixation portion according to an exemplary embodiment of an ablation device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] 1A and 1B show an exemplary embodiment of an ablation device 100 comprising a housing 110 provided with a fixed portion 120. The ablation device 100 is configured to remove cellular tissue T, for example in a biopsy procedure. More generally, the ablation device 100 may be used in any procedure for removing tissue from any part of the human or animal body.

[0031] The anchoring portion 120 is disposed at the distal end of the elongated housing 110 of the ablation device and is configured to be placed on the tissue T. The illustrated fixed portion comprises at least one peripheral wall 121 extending from a base 122 over a distance in a direction along the longitudinal axis A of the housing 110. The at least one wall 121 is arranged to surround the axis A at a distance r. The distance r is preferably at least 5 mm, more preferably 7 mm, even more preferably at least 10 mm. The at least one wall 121 may be coupled to the housing 110 via the base 122 or may be integrally formed therewith. Alternatively, the at least one wall 121 may be directly coupled to the housing, for example using coupling means or the like. In this way, the fixed portion 120 defines a hollow core. The fixed portion comprises at least one upstanding wall having an edge 124 that defines an open end 123 of the fixed portion 120. The edge 124 is configured to contact the tissue. In other words, the edge 124 functions as a stopper. Preferably, the edge defines a circular stop surface of the fixed portion 120. In such an embodiment, the distance r may be considered as the radius of the circular contact area. When the fixing part 120 is placed on the tissue, a substantially closed space is formed by the tissue T and the fixing part 120. It will be clear that the fixing part can take many shapes. Preferably, the fixing part 120 comprises a cup-like shape, such as a suction cup. In a further preferred embodiment, the fixing part is manufactured from a transparent material. The fixing part 120 is further configured to hold the tissue T fixedly by removing air from the closed space via the air evacuation means 111. Preferably, the fixing part has a diameter between 15 mm and 50 mm, more preferably between 20 mm and 40 mm, depending on the ablation device and the intended purpose of the fixing part.

[0032] The resection device 100 further comprises a cutting element 130 movably disposed within the elongate housing 100. The cutting element 130 is movable relative to the fixed portion 120 between a retracted position 180 and an extended position 190. In the retracted position 180, the cutting element 130 is disposed outside of the enclosed space defined by the fixed portion 120. In the extended position 190, the cutting element 130 is disposed within the enclosed space defined by the fixed portion 120. The cutting element 130 comprises an electrode 140 disposed at its distal end. The electrode 140 is configured to cut a section S of tissue held by the stationary portion when the cutting element 120 is in the extended position as shown by Fig. 1B. It should be noted that although the tissue S held by the stationary portion 120 is shown in Fig. 1B as filling the entire volume of the enclosed space, the held tissue may only partially fill the volume of the enclosed space, in particular at least the volume near the walls of the stationary portion.

[0033] According to one embodiment, the cutting element 130 is translatable along an axis A relative to the housing 110, the axis A being oriented according to the longitudinal direction of the housing 110. The cutting element 130 may be translatable over a distance measured along the axis A of at least 3 mm, preferably at least 6 mm, more preferably at least 9 mm. Translating the cutting element 130 over a distance measured along the axis A corresponds to setting or changing the cutting depth. In a preferred embodiment, the cutting element 130 does not extend beyond the edge 124 of the fixed portion. The cutting element 130 may be rotatable about the axis A.

[0034] The housing 110 further comprises an intermediate portion 112, preferably an elongated intermediate portion 112, disposed between the fixed portion 120 and coupled to the actuating element 150, the fixed portion 120 being disposed at a distal end of the intermediate portion 112. The intermediate portion 112 may be operatively connected to the fixed portion 120 such that air can be removed from the enclosed space via an air evacuation means through the intermediate portion 112. In an exemplary embodiment, an air evacuation tube, such as a vacuum tube, may be disposed in the intermediate portion 112. In a preferred embodiment, the air evacuation means is formed by the intermediate portion 112 disposed around the cutting element 130 at a distance from the cutting element 130 such that an air removal channel 113 is formed. In other words, the intermediate portion comprises an at least partially hollow center through which air can be evacuated.

[0035] The intermediate portion 112 may be provided with an air exhaust interface 111, which may be connectable to an air pump (not shown) or a vacuum pump, which may be manually drivable or may comprise an electric drive means such as an electric motor. Typically, air pumps or vacuum pumps are readily available in any operating room. The air exhaust interface 111 may comprise a coupling interface compatible with the outlet and / or inlet of a vacuum tube. It should be noted that although FIG. 1A shows that the air exhaust interface 111 is provided on the intermediate portion 112, it will be immediately apparent to one skilled in the art that the air exhaust interface may be provided on the fixed portion 120 or other portions of the housing 110.

[0036] The resection device 100 may include an actuating element 150 connected to the cutting element 130. The actuating element 150 may be disposed at a proximal end of the housing 110 opposite the fixed portion 120. The actuating element 150 is configured to move the cutting element between a retracted position 200 and an extended position 190. Additionally, the actuating element 150 is configured to rotate the cutting element about an axis A. The actuating element 150 is connected to the cutting element 130.

[0037] The cutting element 130 may extend from the actuating element 150 through the intermediate portion 112 to the fixed portion 120. The cutting element 130 may extend from the proximally disposed actuating element 150 through a through hole in the proximal end of the housing intermediate portion 112. In embodiments where the intermediate portion 112 includes an air removal channel 113, a seal 114, such as an air seal, may be disposed. The air seal 114 is configured to limit air leakage through the through hole. In this manner, a vacuum level within the air removal channel 113 may be substantially maintained.

[0038] 1B shows that the cutting element 130 is disposed in an extended position 190. The surgeon can move the cutting element 130 from the retracted position 180 to the extended position 190. By moving the cutting element 130, the electrode 140 cuts a section S of tissue, as shown in FIG. 1B. Optionally, the surgeon can rotate the cutting element 130. More specifically, by moving the cutting element 130 from the retracted position 180 to the extended position 190, the electrode 140 comes into contact with the tissue S when the electrode 140 is inserted into the closed space defined by the fixed portion 120. Preferably, the electrode 140 is inserted into the closed space through an upper portion of the fixed portion 120, such as through an upper wall of the fixed portion.

[0039] Figure 2 illustrates a further embodiment of an ablation device 100. Similar or identical parts are indicated with the same reference numbers as in Figures 1A and 1B, and the descriptions provided above for Figures 1A and 1B also apply to the components in Figure 2. In the embodiment of Figure 2, the resection device is specifically configured for endocervical and extracervical cone biopsy, and therefore includes a guide rod 200. The guide rod 200 is configured for insertion into the cervix of a female patient to align the resection device 110 with the cervix. The guide rod 200 is fixed to the housing 110 at a first end 201 of the guide rod and extends along the axis A of the housing 110 towards the fixed portion 120 to its second end 202. In this manner, alignment of the resection device 100 with the cervix is ​​improved and surgical imprecision is substantially eliminated. The guide rod 200 preferably extends beyond the fixed portion 120. By extending beyond the fixed portion, the guide rod 200 further improves alignment of the resection device.

[0040] In a preferred embodiment, the cutting element 130 comprises a bipolar electrode comprising an active electrode 141 and a return electrode 142. The electrode 140 may be a loop electrode. The guide rod may function as the return electrode 142 of the bipolar electrode. Optionally, the electrode 140 may comprise active and return electrodes disposed opposite each other. In the preferred embodiment of FIG. 2, the electrode is a loop electrode extending over a distance of at least 3 mm, preferably at least 5 mm, more preferably at least 10 mm.

[0041] FIG. 2 particularly shows that the axis of the cutting element 130 is disposed parallel to the guide rod 200 so that the cutting element 130 is always precisely aligned.

[0042] The cutting element 130 may be operably connected to a power source 160 configured to supply power to the electrodes. First and second conductors (not shown) may be provided, with the first conductor electrically connecting the active electrode to the power source 160 and the second conductor electrically connecting the return electrode to the power source 160. In embodiments in which the guide rod 200 comprises a return electrode of a bipolar electrode, the second conductor is electrically connected to the guide rod 200.

[0043] 2 further illustrates that the housing 110 comprises an actuator housing section 115 configured to receive and / or engage an actuation element 150. Further embodiments of the actuator housing section 115 and actuation element 150 will be discussed in detail in Figures 4A, 4B, and 4C. 2 further shows that actuator housing section 115 includes an actuator housing wall 116 extending proximally of the housing along axis A. Actuator housing wall 116 defines an at least partially hollow core configured to house at least a portion of actuation element 150. The actuator housing wall 116 may include a number of positioning protrusions 117. Embodiments of the actuator housing section 115 will be described in further detail with respect to Figures 4A, 4B and 4C.

[0044] According to a possible embodiment, a three-way valve 170 may be disposed between the vacuum pump 210 and the air exhaust interface 111, for example in a vacuum tube. The three-way valve has three positions, a first position fluidly connects the vacuum pump 210 to the air exhaust interface 111 such that air is removed from the closed space and the fixation portion holds the tissue immobile. In a second position, the three-way valve 170 is configured to fluidly isolate the closed space so that a vacuum is maintained therein. In a third position, the three-way valve 170 is configured to fluidly connect the closed space to the container such that contaminated air is substantially prevented from reaching the vacuum pump.

[0045] 3A and 3B show a front view of the resection device, particularly the cutting element and its guide rod, taken in a plane perpendicular to the longitudinal axis of the device. Figures 3A and 3B show, in particular, an alternative embodiment of the electrode 140 shown in Figures 1A, 1B and 2. The electrode 140 can be monopolar or bipolar. In the context of the present application, a monopolar electrode is a cutting element that comprises a single active electrode and an inactive return electrode. The inactive electrode may be, for example, the operating table. In other words, the patient's body serves as the return electrode. A bipolar electrode is a cutting element that comprises an active electrode and a return electrode. In other words, a bipolar electrode comprises a first sub-electrode and a second sub-electrode. In contrast to a monopolar electrode, both the first and second sub-electrodes are located at or in the immediate vicinity of the ablation location. The active electrode is also called the first sub-electrode and the return electrode is also called the second sub-electrode. The return electrode may be the active electrode.

[0046] FIG. 3A shows an electrode wire 143 that extends from the first sub-electrode 141 to the second sub-electrode 142 and can form a loop in a plane substantially perpendicular to the axis A. Although FIG. 3A shows the second sub-electrode to be arranged parallel to the first sub-electrode 141, it will be apparent that the guide rod 200 may form the second sub-electrode, as described below. A portion of the loop may be arranged at a radial distance d of the axis A. The electrode wire 143 is configured such that when the cutting element 130 is translated along the axis A, tissue is cut along a plane parallel to the axis A. This may be a circular loop, a semicircular loop, a rectangular loop, etc. The distance may range from 4 to 11 mm. In a preferred embodiment, the electrode 141 is the active electrode and the guide rod 200 serves as the return electrode of the bipolar electrode. This results in a clean cut that allows the patient to recover more quickly. Furthermore, this allows for easy removal of the cut tissue from the cut section.

[0047] FIG. 3B shows a front view of the electrode of the embodiment of FIG. 2. The electrode 140 comprises a first sub-electrode 141 and a second sub-electrode arranged at a distance from each other along the axis A (as shown in FIG. 2) and electrically connected by an electrode wire 143. The electrode wire 143 can form a loop, which extends radially from the axis A to at least one wall 121 of the fixed part and back. In this way, when the cutting element is translated along the axis A, the electrode will cut the tissue along a radial line of the axis. The electrode wire 143 arranged in a loop cuts the tissue in a tangential direction of the rotation about the axis A when the cutting element is rotated. This can be used, for example, to cut only a selected portion of tissue, such as cervical tissue, such as a portion of the cervical canal, during a cone biopsy.

[0048] Figures 4A, 4B and 4C show generally a preferred embodiment of an actuation element 150, preferably disposed in the actuator housing section 115 of the housing 110. Similar or identical parts are indicated with the same reference numbers as in Figure 2. The descriptions given above for Figures 1A, 1B and 2 also apply to the components of Figures 4A, 4B and 4C.

[0049] 4A particularly illustrates a cutaway view along axis A of an actuating element 150 disposed within actuator housing section 115. Actuator housing section 115 includes an actuator housing wall 116 extending proximally of the housing along axis A. Actuator housing wall 116 defines an at least partially hollow core configured to receive at least a portion of actuating element 150. Actuator housing wall 116 may include a plurality of positioning protrusions 117, each of which defines a unique position of actuating element 150 relative to housing 110.

[0050] 4B, which shows an exploded view of the interior of the actuator housing section 115, the positioning projections 117 are arranged in a grid pattern. The positioning projections 117 are in particular distributed in a number of cutting positions I, II, III, IV and in a number of rows A, B, C, which rows are respectively arranged at a longitudinal distance from one another when viewed along the axis A. The positioning projections are preferably distributed in four cutting positions. The four cutting positions are evenly distributed along the circumference of a circle seen in projection on a plane perpendicular to axis A. The four cutting positions represent cutting angles of 0°-90°, 90°-180°, 180°-270° and 270°-360°, respectively. It will be apparent that more than four cutting positions may be provided, for example six or eight cutting protrusions. In other words, the cutting element 130 is rotatable between a plurality of indicated cutting positions, each indicated cutting position corresponding to a respective section of tissue. In a preferred embodiment, the plurality of indicated cutting positions comprises four quadrants. It will be apparent to one skilled in the art that the surgeon may rotate the actuation element from a first rotational position to a second rotational position located at any angle and at any cutting position (e.g., from 0° at first cutting position I to 127° located at second cutting position II). The actuator housing section may be provided with a protractor indicating each angle and cutting position. The four positioning protrusions 117AI, 117AII, 117AIII, 117AIV are preferably arranged in a first row A, the four positioning protrusions 117BI, 117BII, 117BIII, 117BIV are arranged in a second row B, and the four positioning protrusions 117CI, 117CII, 117CIII, 117CIV are arranged in the second row B. The plurality of locating projections define a plurality of axially oriented translation channels 118 and tangentially oriented alignment channels 119. The locating projections may be arranged such that the translation channels define a cutting depth of at least 3 mm, preferably at least 5 mm, and more preferably at least 10 mm. The translation channel 118 and the orientation channel 119 are configured to guide a position limiting element 153 disposed on the actuation element 150 to an intended position. The position limiting element 153 slidingly engages the positioning protrusion such that the actuation element 150, and thus the cutting element, is moved and positioned relative to the housing 110. Additionally, the actuator housing wall 116 may have indicators 220a, 220b, 220c on its exterior corresponding to respective rows A, B, C and optionally cutting positions I, II, III, IV to provide the surgeon with visual feedback of the cutting distance and orientation. In the retracted position, the actuating element 150 can be positioned, for example, such that the position limiting element 153 engages with the positioning protrusion 117AI of the first row A in the cutting position I, thereby determining the starting position of the cutting element. Based on a pre-assessment of the tissue, the surgeon knows that two sections of tissue need to be removed, for example, at a depth of 4 mm. Based on the visual feedback provided by the actuating element 150 along with the indicator, the surgeon knows to translate the actuating element to row B and rotate to cutting position III. This resection device allows for biopsies that are physically difficult to reach and tissue removal operations where visibility is limited due to a limited amount of space to be performed in an effective and simple manner. Moreover, the insight of the present invention is further based on the fact that endocervical and exocervical cone biopsies are inherently difficult and dangerous for patients, and such operations may cause infertility and other undesirable problems. Especially in female patients located in the teenage to middle age age group, such operations are often not performed. Since the resection device holds the tissue fixedly and the actuating element interlocking with the actuator housing section provides the surgeon with improved visual feedback, such interventions can still be performed safely and with a high success rate.

[0051] FIG. 5 shows a perspective view of ablation device 100 according to a preferred embodiment.

[0052] In the illustrated exemplary embodiment, the resection device 100 comprises a housing 110. The housing 110 comprises an elongated intermediate portion 112. The housing 110 further comprises a handling portion 230. The handling portion 230 is provided to allow a user to easily manipulate the resection device 100. In the illustrated preferred embodiment, the handling portion 230 is oriented at an angle relative to the elongated intermediate portion 112. In other words, the handling portion 230 and the elongated intermediate portion form an angle with respect to each other. Such an angular orientation of the handling portion 230 allows the surgeon to hold and manipulate the resection device 100 without obstructing the view of the area of ​​intervention.

[0053] The handling portion 230 may be integrally formed with the intermediate portion 112, i.e., the handling portion and intermediate portion may be formed from a single piece. In this manner, the integrally formed handling portion 230 and intermediate portion 112 form a sturdy housing 110 that allows the user to precisely position the resection device. Alternatively, the handling portion 230 may be operatively connected to the intermediate portion 112 in a releasable manner. A connection interface 231a may be provided for operatively connecting the intermediate portion 112 to the handling portion 230, preferably in a releasable manner. The connection interface 231a of the handling portion 230 may be configured to receive a corresponding connection interface 231b provided by the intermediate portion 112, or vice versa. For example, the connection interface 231a of the handling portion 230 may be provided with an internal thread into which a corresponding external thread provided on the connection interface 231b may be screwed, or vice versa. According to a further example, the connection interfaces 231a, 231b may each form a respective part of a ratchet-like locking mechanism having a male portion provided on one of the connection interfaces and configured for interlocking engagement with a female portion provided on the corresponding other connection interface, thereby allowing the handling portion 230 to be connected to and removed from the intermediate portion 112. Having the intermediate portion 112 and / or handling portion 230 releasable allows the elongated intermediate portion 112 and the handling portion 230 to be manufactured independently of one another. This simplifies the manufacturing process of such an ablation device. Also, the intermediate portion 112 may be, for example, a disposable item and the handling portion 230 may be a reusable item.

[0054] As is evident from Fig. 5, the air evacuation channel 113 further extends from the elongated intermediate portion 112 to the end of the handling portion 230. As explained with respect to Fig. 1A, the air evacuation interface 111 may be provided in a number of locations. In the exemplary embodiment shown in Fig. 5, the air evacuation interface 111 is located near the end of the handling portion 230. In this way, the air evacuation means, such as the vacuum tubes and their connecting elements, are positioned relatively far from the intervention area so that they are "out of the way" and do not impede the surgeon's actions or obstruct his view.

[0055] The handling part 230 may be provided with power coupling means 232 arranged to supply power from a power source (not shown) to the electrode. To this end, the power coupling means 232 is provided with electrical contacts (not shown) so that power is transferred from the power source to the electrode even while the electrode is moving. The electrical contacts may be, for example, carbon brushes, brush contacts or slip rings.

[0056] The illustrated ablation device 100 further comprises a fixation portion 120. The fixation portion 120 is disposed at the distal end of the elongated intermediate portion 112 of the housing 110. In the preferred embodiment of Fig. 5, the fixation portion 120 is transparent so that the surgeon can obtain visual feedback regarding the area of ​​intervention and perform the intervention safely even when the fixation portion is fixing tissue. In this way, the quality of the intervention and the patient's recovery are further improved.

[0057] According to the illustrated preferred embodiment, the fixed part 120 is releasable. The releasable fixed part 120 allows the removal of the cut tissue fixedly held in the fixed part 120 without further use of, for example, forceps. More specifically, once the tissue is cut, the fixed part 120 holds the tissue. The removable fixed part then holds the cut tissue. In this way, the removable fixed part 120 beneficially serves two purposes: on the one hand, the fixed part allows the surgical intervention to be performed safely with a significantly reduced risk of post-intervention medical complications. On the other hand, the fixed part 120 is available as a holder for the removed tissue. Thus, contamination of the cut tissue is substantially reduced or completely avoided. This improves the histopathological analysis after tissue removal and shortens the total examination time.

[0058] According to a preferred embodiment (not shown), the fixed part 120 is rotatable relative to the housing 110, in particular the elongated intermediate part 112. Also, the elongated intermediate part 112 may be rotatable relative to the handling part 120. Such a preferred embodiment allows the surgeon to set the initial cutting angle while holding the resection device in a comfortable way. Its advantage is based on the insight that otherwise the surgeon has to rotate the entire resection device to set the initial cutting angle. As detailed above, in the context of an endocone or exocone intervention, the operating space is strictly limited, which puts a strain on the surgeon. Having a rotatable fixed part 120 and / or intermediate part 112 provides the surgeon with a more ergonomic tool and simplifies the intervention.

[0059] The fixed part 120 is preferably provided with a plurality of scale indicators 125, as shown in Figure 9. Preferably, the plurality of scale indicators 125 are evenly distributed along a circular arc of the fixed part 120. The circular arc is preferably circular. The plurality of scale indicators 125 will be explained in more detail with respect to Figure 9.

[0060] 5 shows a preferred embodiment of the actuation element 150 and the actuator housing section 115. The actuator housing section 115 is provided in the housing 110 of the resection device. In the illustrated embodiment, the actuator housing section 115 comprises a plurality of slots 240. Each of the slots 240 is configured to receive a positioning abutment element 250. The slots 240 are arranged side by side as viewed in the longitudinal direction along the axis A. In other words, the slots are spaced apart by a certain distance as viewed along the axis A. The slots 240 extend from the outside to the inside of the actuator housing wall 116. In other words, each slot 240 defines a through hole.

[0061] The positioning abutment element 250 can be positioned in any of the plurality of slots 240. The positioning abutment element 250 comprises a protrusion configured to extend through the respective slot to the inside of the actuator housing wall 116. The protrusion forms an abutment, viewed along the axis A, that prevents the cutting element 130 from moving beyond the abutment. The positioning abutment element 250 thus makes it possible to set or limit the cutting depth of the cutting element 130. More specifically, by arranging the positioning abutment element 250 such that the projection extends through the slot, the movement of the positioning abutment element 250 is limited by the actuator housing wall 116 which defines the opening of the slot 240. Furthermore, the abutment formed by the projection on the inside of the actuator housing wall 116 limits the movement of the cutting element 130. Thus, cooperation between the positioning abutment element 250 and the actuator housing section 115 which is provided with the plurality of slots 240 allows the cutting depth of the cutting element 130 to be quickly and easily set. The slots 240 may be arranged at a pitch distance from each other, meaning that the distance between adjacent slots is the same. The slots 240 may be arranged, for example, every 2 mm along the longitudinal axis A. Alternatively, the slots 240 may be arranged at a distance from each other that may be mutually different. For example, there may be a distance of 4 mm between the first and second slots, and a distance of 2 mm between the second and third slots. It will be apparent that the positioning abutment element 240 of the preferred embodiment described above functions similarly to the cooperation of position limiting element 153 in translation channel 118 detailed with respect to Figures 4A and 4B. Positioning abutment element 250 is a preferred embodiment that is structurally less complex to manufacture than the embodiment of Figures 4A and 4B, and provides the surgeon with an accurate gauge of cutting depth in a simplified manner. In a preferred embodiment, particularly useful for exoconal and / or endoconal interventions, the slots are arranged to allow a choice of cutting depths of approximately 4 mm, 10 mm, 20 mm and 30 mm.

[0062] The positioning abutment element 250 can be attached to the housing 110 in a removable manner. Preferably, the positioning abutment element 250 can be clipped to the housing of the resection device. In other words, the positioning abutment element 250 comprises a flexible or spring-loaded clip that holds the positioning abutment element 251 and the resection device 100 together. This allows the cutting depth to be easily set to a predetermined value by fixing the positioning abutment element 250 to the housing 110, in particular to the actuator housing section 115 thereof, using the clip.

[0063] According to a preferred embodiment, not shown, the cutting element or actuation element 150 can be operated by a hand or finger operated trigger arranged on the handling part. The hand operated trigger may be configured to rotate the cutting element 130, for example, in such a way that squeezing the hand trigger over a certain distance will result in the cutting element rotating over a corresponding amount of angle with respect to the squeezing distance. Alternatively or in combination, the trigger may be configured to rotate the cutting element 130 by a predefined amount of angle (e.g. 360°), optionally using the actuation element 150, thereby simplifying the surgeon's intervention. Alternatively or in combination, a foot operated pedal may be provided with a similar function. The hand operated trigger or foot pedal described above may also be configured to operate a vacuum pump or a three-way valve, thus further increasing the possibilities of operation.

[0064] FIG. 6A is a side view of the preferred embodiment of the resection device 100 shown in FIG. 5, with the cutting element 130 shown separately from the housing 110. FIG.

[0065] 6A illustrates that the cutting element 130 can be inserted into the housing 112 at the housing's proximal end P. The cutting element 130 can be inserted into the housing 112, specifically by sliding the cutting element 130 into the housing 112 along axis A.

[0066] 6A also shows that, according to the illustrated preferred embodiment, the cutting element 130 comprises an actuating element 150 and an electrode 140. The actuating element 150 is disposed at a proximal end P of the cutting element 130. The electrode 140 is disposed near a distal end D of the cutting element 130. The cutting element 130 includes an elongate shaft 131 extending between a distal end and a proximal end. The cutting element 130 includes an electrical conductor 132 configured to transfer power from a power source (not shown) to the electrode 140. The electrical conductor 132 extends through the elongate shaft 131 from a power receiving section to the electrode 140. The power receiving section 133 is positioned and dimensioned such that when the cutting element 130 is disposed within the housing 110, the power receiving section 133 may be electrically connected, such as to a power coupling means 232. The power receiving section may also receive power directly from a power source (not shown). The power receiving section 133 may be electrically connected to the power coupling means 232 in both the extended and retracted positions of the cutting element 130, or any position therebetween. In this manner, it is ensured that the electrode 140 is functional when power is applied.

[0067] According to a preferred embodiment, the elongated shaft 131 at least partially forms the electrical conductor 132; for example, the elongated shaft 131 may be partially manufactured from a conductive material such as stainless steel. This advantageously provides a robust cutting element 130 for the ablation device while providing an electrical conductor for powering the electrode 140. Preferably, the elongated shaft is coated or provided with a surface layer. The coating or surface layer is electrically insulating to prevent unwanted current flow to the patient's body when the surface of the elongated shaft contacts tissue. Also, in such an embodiment, only the electrode 140 can cut or cauterize tissue, thus preventing undesired cauterization or cutting. Alternatively, the elongated shaft 131 may be hollow. The hollow shaft 131 may accommodate an electrical conductor.

[0068] 6B and 6C show different preferred embodiments of an electrode 140 disposed at the distal end of the cutting element 130 shown in FIG. 6A.

[0069] FIG. 6B shows an electrode 140 optimally shaped for external cone intervention, for example, to ablate tissue located outside the cervical cavity and near the external opening of the cervix. The illustrated electrode 140 comprises a relatively long transverse portion extending away from the cutting element 130 and a relatively short longitudinal portion extending along the cutting element. Preferably, the transverse portion is curved to define a cutting curve at the distal end of the electrode, as shown in FIG. 6B. The transverse portion is substantially perpendicular to the longitudinal axis A. Preferably, the length of the transverse portion is between 5 mm and 20 mm, more preferably between 7 mm and 15 mm. The longitudinal portion is substantially parallel to the longitudinal axis A. Preferably, the length of the longitudinal portion is between 1 mm and 10 mm, more preferably between 2 mm and 8 mm. FIG. 6C shows an electrode optimally shaped for an internal conical intervention, for example to ablate tissue located inside the cervical cavity and beyond the external opening of the cervix. The illustrated electrode 140 comprises a relatively short transverse portion extending away from the cutting element 130 and a relatively long longitudinal portion extending along the cutting element. The transverse portion is substantially perpendicular to the longitudinal axis A. Preferably, the length of the transverse portion is between 1 mm and 4 mm. The longitudinal portion is substantially parallel to the longitudinal axis A. Preferably, the length of the longitudinal portion is between 10 mm and 50 mm, more preferably between 15 mm and 45 mm, and most preferably between 20 mm and 40 mm. The electrode 140 shown in Figures 6B and 6C is monopolar. Monopolar electrodes are easier to construct and reduce the manufacturing costs of the ablation device. In combination with the fixed part 120, the use of such a monopolar electrode does not pose a medical threat to the surgeon or patient during the procedure, since the smoke generated by cutting the tissue is exhausted using an air exhaust means.

[0070] FIG. 7 shows a front view of the cross section BB shown in FIG. 5. FIG. 7 shows in particular a cross section of a preferred embodiment of the elongated intermediate portion 112 of the housing 110 of the resection device 100. The intermediate portion 112 comprises a cutting element housing section 260. The cutting element housing section 260 is designed to accommodate the elongated shaft 131. The cutting element housing section 260 is designed such that the distance between the cutting element housing section 260 and the elongated shaft 131 is minimal, for example less than 5 mm, preferably less than 2 mm. In this way, the degree of freedom of movement of the cutting element 130 is substantially limited, so that the cutting deviation is reduced. In other words, the movement of the cutting element 130 is only possible in the direction of the longitudinal axis A or in a rotational manner around said axis A. For an improved rotational guidance of the cutting element 130, the inner circumference of the cutting element housing section 260 may be circular.

[0071] Cutting element housing section 260 is connected to electrode housing section 261. Electrode housing section 261 extends radially outward from cutting element housing section 260. Electrode housing section 261 is configured to allow passage of an electrode 140, such as the electrode 140 shown in Figures 6B and 6C. The cutting element housing section 261 is preferably narrow so as to keep the overall dimensions of the ablation device to a minimum. The radial distance that the electrode housing section 261 extends is preferably at least 3 mm, preferably at least 5 mm, more preferably at least 10 mm. The combination of cutting element housing section 260 and electrode housing section 261 allows for easy insertion of cutting element 130, for example as shown in Figures 6A, 6B, and 6C, into the ablation device, allowing the surgeon to easily change cutting elements or load the ablation device prior to beginning an intervention.

[0072] In addition to the single air removal channel 113 formed by the housing 110 in Figures 1A and 1B, the intermediate portion 112 shown in Figure 7 comprises a plurality of additional air removal channels 113. In other words, one or more additional air removal channels 113 are provided in the intermediate portion 112. In the illustrated example, two additional air removal channels 113 are provided. The additional air removal channels 113 improve air removal from the fixed portion 120. Also, the additional air removal channels 113 are advantageously redundant. More specifically, when tissue, body fluids or liquids block one or more of the air removal channels 113, the fixed portion can continue to hold the cellular tissue as long as at least one of the air removal channels 113 remains at least partially open.

[0073] In the illustrated exemplary embodiment, the additional air removal channel 113 is disposed adjacent to the electrode housing section 261. Disposing multiple additional air removal channels 113 has the advantage that the housing walls forming each of the additional air removal channels 113 provide structural strength to the ablation device. Thus, the ablation device is more sturdy and rigid, allowing the surgeon to perform the intervention more precisely.

[0074] In the illustrated embodiment, the further air removal channel 113 is parallel to the electrode housing section 261 and has a substantially similar width. The elongated cross-sectional shape of the air removal channel 113 allows for having the maximum possible air flow while keeping the overall width of the housing of the ablation device to a minimum. It will be clear to one skilled in the art that more than two air removal channels 113 may be provided or may have different shapes. The air removal channels may be provided, for example, surrounding the cutting element housing section 260 and the electrode housing section 261. Optionally, the cutting element housing section 260 and the electrode housing section 261 are also connected to a vacuum pump.

[0075] 8A and 8B show front views of the stationary portion 120 according to a preferred embodiment. In the illustrated embodiment, the inner surface of the wall of the stationary portion 120 is provided with one or more air grooves 113a, 113b. The air grooves 113a, 113b are fluidly connectable to the air removal channel 113 and / or the cutting element housing section 260 and the electrode housing section 261. The air grooves 113a, 113b distribute the vacuum over a larger area within the stationary portion 120, thus improving the vacuum level within the stationary portion 120 during use. In other words, the air grooves are designed to provide a larger air inlet to the air removal channel, which improves the vacuum level within the stationary portion 120 during use of the resection device. The larger air inlet substantially avoids a situation where tissue blocks the air inlet to the air removal channel, which would adversely affect tissue retention. The air grooves allow for a more uniform retention of tissue within the stationary portion, thereby improving the overall functionality of the resection device in terms of tissue fixation, cutting accuracy, visibility and / or durability.

[0076] In the exemplary embodiment of Figure 8A, two air channels 113a, 113b are shown. Preferably, the suction in each of the two air channels 113a, 113b can be turned on and off separately, which would allow the surgeon to control the two air channels 113a, 113b to create a situation where there is no suction or there is suction in the first air channel 113a and / or the second air channel 113b.

[0077] The first air groove 113a comprises an arcuate groove having a plurality of substantially radially extending arms. The arcuate groove surrounds the opening of the cutting element housing section 260 through which the cutting element extends the distance. The extending arms of the air groove 113a substantially expand the suction area of ​​the first air groove 113a of the fixed portion. The arcuate groove fluidly interconnects the arms such that suction and / or vacuum is evenly distributed within the fixed portion 120. In a preferred embodiment, particularly in view of external cone intervention, the first air groove 113a may correspond to the specimen area and be controlled to provide suction, while the second air groove 113b may be controlled to not provide suction, thereby allowing the cut specimen to remain attached to the fixed portion 120 during removal of the resection device from the body.

[0078] A second air groove 113b is provided in the wall of the stationary portion 120, forming an arc surrounding the first air groove. The arc of the second air groove has a larger diameter with respect to the arc of the first air groove 113a. The second air groove 113b makes it possible to provide suction to obtain a vacuum in the outermost region of the stationary portion 120, so that the tissue located near the edge 124 is firmly held by the stationary portion. In this way, the stationary portion holds the tissue in an improved manner. The second air groove 113b comprises a groove portion that extends radially from the opening of the cutting element housing section 260 to the arc-shaped portion of the second air groove. The radially extending groove portion fluidly connects the arc-shaped second air groove 113b to the air removal channel 113 or the cutting element housing section 260 and / or the electrode housing section 261.

[0079] It will be apparent to one skilled in the art that multiple orientations, shapes and configurations of the first and second air grooves are possible. Figure 8B illustrates a further such exemplary embodiment in which the first air groove 113a is circularly shaped to surround the opening of the cutting element housing section 260. The second air groove 113b comprises two circular portions, the first circular portion surrounding the second circular portion and located near the edge 124 of the fixed portion 120. The second circular portion surrounding the first air groove 113b.

[0080] FIG. 9 is a perspective front view of an exemplary embodiment of the fixing portion shown in FIG. 8(B).

[0081] 9 specifically illustrates the multiple scale indicators 125. The multiple scale indicators 125 are positioned and preferably evenly distributed near the arc of the second air groove 113b, i.e., near the circumference of the fixed portion 120. The scale indicators 125, in conjunction with a dial on the cutting element 130, provide visual feedback to the surgeon regarding the angular orientation of the cutting element 130 relative to the fixed portion 120 when the fixed portion 120 is placed, such as on the woman's cervix. Such an embodiment is particularly useful since otherwise the surgeon would require the use of a medical imaging device to visually track his or her intervention or to rely entirely on personal muscle feedback from surgery with an excision device. The use of a medical imaging device or reliance on personal muscle feedback is prone to errors when performing the intervention, often leading to medical complications or even infertility for the patient. By using a fixed part 120 with such a scale indicator 125, visual feedback is provided to the surgeon in a simple manner, reducing patient risks and improving the patient's recovery after the intervention. According to an exemplary analogy, the scale indicators 125 correspond to the numbers on a clock. According to this analogy, the scale indicators at 12, 3, 6 and 9 o'clock correspond to the boundaries of the cut positions I, II, III, IV of the four quadrants described in FIG. 4B. It will be apparent that multiple cut positions can be defined. For example, the scale indicators may be positioned such that they are angularly spaced apart, with an angle between each position being, for example, 20°. 9, it is apparent that the surgeon can insert the cutting element 130 through the cutting element housing section 260. The surgeon can rotate the cutting element 130 in its retracted and extended positions. Rotating the cutting element 130 in its retracted position allows the surgeon to position the cutting element 130 in the correct starting position to perform an intervention. The surgeon can rotate the cutting element 130 to the required position as indicated by the first scale indicator 125. By moving the cutting element 130 to the extended position, the intervention is started and the tissue held by the fixed portion 120 is cut along the axis A. The surgeon can then rotate the cutting element 130 to the second scale indicator, thus cutting the tissue between the first and second scale indicators. The surgeon can retract the cutting element 130 and / or the entire resection device to terminate the intervention. It will be apparent that the cutting element can be rotated 360° about the longitudinal axis A or a part thereof. Preferably, in addition to visually indicating the intended scale of rotation, each of the scale indicators 125 comprises a depression or recess that provides tactile feedback to the surgeon to assist in cutting a given section and / or creates space for the cutting element 130, and more specifically its electrode 140, to be efficiently and carefully positioned and / or retracted at the corresponding location of each scale indicator 125. It will be apparent to one skilled in the art that the scale indicators 125 may be provided at a radius of the fixed portion 120 that best corresponds to the electrode 140 being used.

[0082] According to a preferred embodiment, the resection device is provided with a spring back mechanism (not shown) configured to move the cutting element 130 from the extended position to the retracted position after the cutting element 130 reaches a predetermined rotational position. For example, the spring back mechanism may move the cutting element when it rotates 360°. According to another example, the spring back mechanism moves the cutting element 130 after it rotates 90°. The predetermined rotational position of the cutting element may correspond to the scale indicator 125.

[0083] The embodiment shown in FIG. 9 is particularly useful for endocones interventions, as the scale indicator 125 along with the dial of the cutting element 130 provide the surgeon with visual feedback of the position of the cutting element 130 that would otherwise only be visible using medical imaging. Furthermore, the illustrated electrode 140 is particularly suitable for endocones interventions, as the electrode comprises a relatively short transverse portion that extends away from the cutting element 130 and a relatively long longitudinal portion that extends along the cutting element. The transverse portion is substantially perpendicular to the longitudinal axis A. Preferably, the length of the transverse portion is between 1 mm and 4 mm. The longitudinal portion is substantially parallel to the longitudinal axis A. Preferably, the length of the longitudinal portion is between 10 mm and 50 mm, more preferably between 15 mm and 45 mm, and most preferably between 20 mm and 40 mm.

[0084] Although not shown in any of the previous figures, the resection device may be provided with lighting means. The lighting means are configured to emit light. The lighting means improve the surgeon's visibility, in particular during inner-cone or outer-cone interventions. The lighting means may be implemented as LED diodes arranged on the housing 110. The lighting means may be integrated in the housing, for example in the handling part 230. The lighting means may be embodied, for example, as an illumination ring surrounding the handling part so that the entire circumferential area of ​​the resection device is illuminated. The lighting means may be directed towards the intervention area, i.e. towards the tissue that is fixedly held by the fixed part. The lighting means may also be provided with light guide means for directing the light emitted from the lighting means towards the fixed part and thereby directly illuminating the tissue that is fixedly held by the fixed part or that is intended to be fixedly held by the fixed part.

[0085] In the above embodiment, the cutting element is provided with an electrode for performing the cutting operation, but alternatively or in addition to the electrode, at least one of the following elements may be provided to perform the cutting operation: ultrasonic cutting means such as a harmonic scalpel, laser cutting means, mechanical cutting means.Furthermore, any one of the following elements may be provided to perform the sealing operation: ultrasonic sealing means, laser sealing means, mechanical sealing means.

[0086] While the principles of the present invention have been described above with reference to specific embodiments, it is understood that this description is made purely by way of example and not as a limitation on the scope of protection determined by the appended claims.

Claims

1. 1. An ablation device (100) for removing cellular tissue, the ablation device comprising: - a housing (110) provided with a fixing part (120), said fixing part (120) being configured to be placed on the cellular tissue (T) such that a closed space is formed by the cellular tissue (T) and an inner surface of said fixing part (120); said fixing part (120) being further configured to fixedly hold said cellular tissue (T) close to said inner surface by removing air from said closed space via an air exhaust means; a cutting element (130) movably arranged within said housing (110) such that said cutting element (130) is movable between a retracted position and an extended position relative to said fixed part (120), said cutting element (130) comprising an electrode (140) arranged at a distal end of said cutting element and configured to cut a section (S) of tissue held by said fixed part (120) when said cutting element is in said extended position; Equipped with the cutting element (130) is translatable along an axis (A) relative to the housing (110), the axis (A) being oriented according to a longitudinal direction of the housing; Excision device.

2. 2. The resection device of claim 1, wherein the stationary portion (120) comprises at least one upstanding wall having an edge (124) configured to contact the tissue, and in the extended position, the cutting element (130) does not extend beyond the edge of the stationary portion.

3. The ablation device according to claim 1 or 2, wherein the fixation portion (120) is substantially cup-shaped.

4. The ablation device of claim 1 , wherein the cutting element is translatable over a distance measured along the axis (A) of at least 3 mm.

5. The resection device of any one of claims 1 to 4, wherein the cutting element (130) is rotatable along the axis (A) of the housing (110).

6. 6. The ablation device of claim 5, wherein the cutting element (130) is rotatable between a plurality of indicated cutting positions, each indicated cutting position corresponding to a respective section of tissue.

7. The ablation device of claim 6 , wherein the plurality of indicated cut locations comprises four quadrants (I, II, III, IV).

8. The ablation device according to any one of the preceding claims, wherein at least the fixed part (120) is made from a transparent material.

9. 9. The resection device of claim 1, further comprising a guide rod (200) extending outwardly along the axis (A) toward a distal end of the housing and configured for insertion into a body cavity, such as the cervix of a female patient, for aligning the resection device (100) with a wall of the body cavity.

10. The ablation device according to any one of the preceding claims, wherein the electrode is a bipolar electrode comprising first and second sub-electrodes (141, 143).

11. The ablation device according to claim 10, when taken from claim 9, wherein the electrode (140) forms a first sub-electrode (141) and the guide rod (200) forms the second sub-electrode.

12. The ablation device of claim 10 or 11, wherein the electrode is a loop electrode.

13. The ablation device of claim 12 , wherein the loop electrodes extend radially over a distance of at least 3 mm when viewed in the axial projection.

14. The excision device of any one of claims 1 to 13, wherein the housing (110) comprises an elongated intermediate portion (112), and the fixed portion (120) is disposed at a distal end of the elongated intermediate portion (112) and operably connected to the elongated intermediate portion (112) such that air can be removed from the enclosed space through the intermediate portion via the air exhaust means.

15. 15. The resection device of claim 14, wherein the air exhaust means is formed by the elongated intermediate portion spaced apart from and arranged around the cutting element (130) such that an air removal channel (113) is formed, the intermediate portion comprising an air exhaust interface (111) connectable to an air pump.

16. The ablation device of claim 15 , wherein one or more additional air removal channels are defined by the elongated intermediate portion.

17. 17. The resection device of claim 1, further comprising an actuating element (150) connected to the cutting element (130), the actuating element (150) being disposed at a proximal end of the housing (110) and configured to move the cutting element (130) between the retracted position and the extended position and / or to rotate the cutting element along the axis (A).

18. 20. The resection device of claim 17, wherein the actuating element (150) is disposed within an actuator housing section (115) having an actuator housing wall (116) comprising a plurality of positioning protrusions configured to be engaged by a position limiting element (153) of the actuating element.

19. The ablation device of claim 18, wherein the plurality of positioning protrusions define a plurality of axially oriented translation channels (118) and tangentially oriented orientation channels (119).

20. The resection device of claim 19, wherein the position limiting element (153) slidingly engages the plurality of positioning protrusions such that the actuating element (150) is moved and positioned relative to the housing (110).

21. The ablation device according to any one of claims 18 to 20, wherein the actuator housing wall (116) may have indicators (220a, 220b, 220c) on its exterior corresponding to the plurality of axially oriented translation channels (118) and tangentially oriented orientation channels (119).

22. 18. The resection device of claim 17, wherein the actuator housing section (115) is provided at the proximal end of the housing (110) and comprises a plurality of slots (240) arranged side by side in a longitudinal direction along the axis A; the resection device further comprises a positioning abutment element (250) configured to prevent the cutting element (130) from moving beyond the positioning abutment element (250), the positioning abutment element (250) being positionable within one of the plurality of slots (240).

23. 23. The resection device of claim 22, wherein the plurality of slots form through holes, and the positioning abutment element (250) has an abutment portion intended to extend through the slots when the positioning abutment element is positioned on the actuator housing section (115), the abutment portion configured to prevent the cutting element (130) from moving beyond the abutment portion.

24. The ablation device according to claim 22 or 23, wherein the positioning abutment element (250) is clippable onto the housing (110).

25. The ablation device of any one of claims 1 to 24, wherein the stationary portion (120) is configured for releasable attachment to the distal end of the housing (110).

26. 26. The ablation device according to any one of the preceding claims, wherein the fixed part (120) is provided with one or more air grooves (113a, 113b) on an inner surface thereof, the one or more air grooves extending across the inner surface.

27. 27. The ablation device according to any one of claims 1 to 26, wherein the fixed portion is provided with a plurality of scale indicators (125), the plurality of scale indicators being evenly distributed along an arc on the fixed portion (120).

Images