Sliding lock for a biopsy device

Abstract

A biopsy device includes a probe, a sheath, and a probe lock. The probe includes a probe body and a needle extending distally from the probe body. The probe is releasably coupled to the sheath. The probe lock includes a locking member configured to move laterally relative to a longitudinal axis defined by the needle to selectively lock the probe to the sheath.

Description

[0001] Cross - Reference to Related Applications

[0002] This application claims the benefit of priority of U.S. Provisional Application No. 62 / 985,079, filed on Mar. 4, 2020, entitled “Slide - Lock for Biopsy Device”, the disclosure of which is incorporated herein by reference. Background Art

[0003] A variety of devices have been used in a variety of ways to obtain biopsy samples in various medical procedures. Biopsy devices can be used under stereotactic guidance, ultrasound guidance, MRI guidance, PEM guidance, BSGI guidance, or otherwise. For example, some biopsy devices can be fully operated by a user with one hand and capture one or more biopsy samples from a patient with a single insertion. Additionally, some biopsy devices can be tethered to a vacuum module and / or a control module, such as for the communication of fluids (e.g., compressed air, saline, atmosphere, vacuum, etc.), for the transmission of electricity, and / or for the transmission of commands, etc. Other biopsy devices can be fully or at least partially operable without being tethered or otherwise connected to another device.

[0004] The following documents disclose only exemplary biopsy devices and biopsy system components: U.S. Patent No. 5,526,822, issued June 18, 1996, titled "Method and Apparatus for Automated Biopsy and Collection of Soft Tissue"; U.S. Patent No. 6,162,187, issued December 19, 2000, titled "Fluid Collection Apparatus for a Surgical Device"; U.S. Patent No. 7,442,171, issued October 8, 2008, titled "Remote Thumbwheel for a Surgical Biopsy Device"; U.S. Patent No. 7,938,786, issued May 10, 2011, titled "Vacuum Timing Algorithm for Biopsy Device"; U.S. Patent No. 8,241,226, issued August 14, 2012, titled "Biopsy Device with Rotatable Tissue Sample Holder"; U.S. Patent No. 8,764,680, issued July 1, 2014, titled "Handheld Biopsy Device with Needle Firing"; and U.S. Patent No. 9,955,955, issued May 1, 2018, titled "Biopsy Device with Slide-In Probe". The disclosure of each of the above U.S. patents is incorporated herein by reference.

[0005] The following documents disclose additional exemplary biopsy devices and biopsy system components: U.S. Publication No. 2009 / 0131821, published May 21, 2009 (now abandoned), titled "Graphical User Interface For Biopsy System Control Module"; U.S. Publication No. 2010 / 0160819, published June 24, 2010 (now abandoned), titled "Biopsy Device with Central Thumbwheel"; and U.S. Publication No. 2014 / 0039343, published February 6, 2014 (now abandoned), titled "Biopsy System". The disclosure of each of the above U.S. patent application publications is incorporated herein by reference.

[0006] In some cases, a biopsy device may be configured with a reusable housing and a disposable probe. By enabling the more expensive parts to be reused and the less expensive components to be discarded, such a configuration may be desirable for increasing the economy of use. However, such a configuration results in a need for a structure for coupling the housing to the probe. In some examples, such a mechanism may be provided by one or more hooks that engage corresponding cam features. Although such a mechanism provides an advantage in terms of simplicity, it may limit the feedback provided to the operator during coupling. In the absence of such feedback, the operator may not be confident that the coupling between the housing and the probe is secure. Accordingly, there is a need to provide a mechanism for coupling a probe and a housing that provides enhanced feedback to the operator.

[0007] Although several systems and methods have been made and used to obtain biopsy samples, it is believed that no one prior to the present inventors has made or used the invention described in the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Although this specification concludes with claims particularly pointing out and distinctly claiming the subject matter of this technology, it is believed that the technology will be better understood from the following description of certain examples, taken in conjunction with the accompanying drawings, in which like reference numerals identify the same elements, and in which:

[0009] Figure 1 A schematic diagram depicting an exemplary biopsy system including a biopsy device and a vacuum control module;

[0010] Figure 2 Depicts Figure 1 A perspective view of an exemplary biopsy device of the biopsy system of, the biopsy device including an exemplary probe coupled to an exemplary housing;

[0011] Figure 3 Depicts Figure 2 A perspective view of the biopsy device of, wherein the probe is decoupled from the housing;

[0012] Figure 4 Depicts Figure 2 A detailed perspective view of the internal components of the probe of;

[0013] Figure 5 Depicts Figure 2 The probe of attached to Figure 2 A perspective cross-sectional view of the housing of, the cross-section being taken along line 5-5 of; Figure 2 of;

[0014] Figure 6 Depicts an exemplary probe for use with Figure 2 the housing of;

[0015] Figure 7 depicts Figure 6 a detailed perspective view of an exemplary probe lock of a probe;

[0016] Figure 8 depicts Figure 7 a detailed perspective view of an exemplary lock member of a probe lock;

[0017] Figure 9 depicts Figure 6 a detailed perspective view of an exemplary chassis of a probe;

[0018] Figure 10 depicts Figure 2 a perspective view of a housing, wherein Figure 6 the probe of is disconnected from the housing;

[0019] Figure 11A depicts a perspective series of a probe that is partially coupled to Figure 2 the housing of Figure 6 ;

[0020] Figure 11B depicts a perspective series of a probe that is fully coupled to Figure 2 the housing of Figure 6 ;

[0021] Figure 12A depicts Figure 7 a perspective series of a probe lock that is in an unlocked configuration;

[0022] Figure 12B depicts Figure 7 another perspective series of a probe lock that is actuated from an unlocked configuration by Figure 2 a portion of the housing of

[0023] Figure 12C depicts Figure 7 yet another perspective series of a probe lock that is in a locked configuration;

[0024] Figure 13 depicts a perspective view of another exemplary probe for use with Figure 2 the housing of

[0025] Figure 14 depicts Figure 13 a detailed perspective view of an exemplary probe lock of a probe; and

[0026] Figure 15 depicts Figure 13 a partially cut-away perspective view of a probe.

[0027] The drawings are not intended to limit in any way, and it is contemplated that various embodiments of the present technology may be carried out in many other ways, including those not necessarily depicted in the drawings. The drawings which are incorporated in and form a part of this specification illustrate several aspects of the present technology and, together with the description, serve to explain the principles of the present technology; however, it is to be understood that the present technology is not limited to the precise arrangements shown. Detailed Description

[0028] The following description of certain examples of the present technology should not be used to limit the scope of the present technology. By the following description, other examples, features, aspects, embodiments and advantages of the present technology will become apparent to those skilled in the art. The following description is by way of illustration and is intended to be one of the best modes contemplated for carrying out the present technology. As will be recognized, the technology described herein is capable of having other different and obvious aspects, all of which do not depart from the present technology. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0029] I. Overview of an Exemplary Biopsy System

[0030] Figure 1 An exemplary biopsy system (2) including a biopsy device (10) and a vacuum control module (400) is depicted. The biopsy device (10) of this example includes a probe (100) and a sheath (200), as Figures 2 to 3 shown. A needle (110) extends distally from the probe (100) and is inserted into a patient's tissue to obtain a tissue sample. These tissue samples are stored in a tissue sample holder (300) located at the proximal end of the probe (100), as will be described in more detail below. It should also be understood that the use of the term "sheath" herein should not be construed as requiring any part of the probe (100) to be inserted into any part of the sheath (200).

[0031] As will be discussed in more detail below, the probe (100) and the sheath (200) are generally configured to be coupled to each other. Some variations of the biopsy device (10) may include one or more sensors (not shown) in the probe (100) and / or the sheath (200), the one or more sensors being configured to detect when the probe (100) is coupled to the sheath (200). Such sensors or other features may further be configured to only allow certain types of probes (100) and sheaths (200) to be coupled together. Additionally or alternatively, such sensors may be configured to deactivate one or more functions of the probe (100) and / or the sheath (200) until a suitable probe (100) and sheath (200) are coupled together. In one illustrative example only, the probe (100) includes a magnet (not shown) that is detected by a Hall effect sensor (not shown) or some other type of sensor in the sheath (200) when the probe (100) is coupled to the sheath (200). As yet another illustrative example only, the coupling of the probe (100) to the sheath (200) may be detected using physical contact between conductive surfaces or electrodes, using RFID technology, and / or in many other ways that will be apparent to those of ordinary skill in the art in view of the teachings herein. Of course, such sensors and features may be varied or omitted as desired.

[0032] The biopsy device (10) of this example is configured to be mounted to a workbench or fixture and used under stereotactic guidance. Of course, the biopsy device (10) may alternatively be used under ultrasound guidance, MRI guidance, PEM guidance, BSGI guidance, or otherwise. It should also be understood that the biopsy device (10) may be sized and configured such that the biopsy device (10) can be operated by a user with one hand. In particular, the user may grasp the biopsy device (10), insert the needle (110) into the patient's breast, and collect one or more tissue samples from within the patient's breast, all with only one hand. Alternatively, the user may grasp the biopsy device (10) with more than one hand and / or with any desired aids. In some circumstances, the user may capture multiple tissue samples by inserting the needle (110) into the patient's breast only once. Such tissue samples may be pneumatically stored in the tissue sample holder (300) and retrieved later from the tissue sample holder (300) for analysis. Although the examples described herein often relate to obtaining biopsy samples from a patient's breast, it should be understood that the biopsy device (10) may be used for a variety of other procedures for a variety of other purposes and in a variety of other parts of a patient's anatomy (e.g., prostate, thyroid, etc.). The various exemplary components, features, configurations, and operabilities of the biopsy device (10) will be described in more detail below; and other suitable components, features, configurations, and operabilities will be apparent to those of ordinary skill in the art in view of the teachings herein.

[0033] II. Exemplary Housing

[0034] As Figure 3 shown, the housing (200) of this example includes a top housing cover (202), side panels (204), and a housing base (206) that are securely fixed together. Gears (212, 230) are exposed through the top housing cover (202) and engage with the gears (130, 140) of the probe (100) when the probe (100) and the housing (200) are coupled together. In particular, gears (230, 140) drive an actuation assembly of a cutter (not shown) disposed within the needle (110); while gears (212, 130) are used to rotate the needle (110). Gears (not shown) are located at the proximal end of the housing (200) and engage with corresponding gears (not shown) of the probe (100) to rotate a rotatable member (not shown) of the tissue sample holder (300).

[0035] As noted above, rotation of the gear (212) provides rotation of the needle (110) relative to the probe (100). In this example, the gear (212) is rotated by rotating a knob (210). In particular, the knob (210) is coupled to the gear (212) through a series of gears (not shown) and shafts (not shown) such that rotation of the knob (210) rotates the gear (212). A second knob (210) extends from the other side of the housing (200). By way of example only, such a needle rotation mechanism may be constructed in accordance with the teachings of U.S. Publication No. 2008 / 0214955, the disclosure of which is incorporated herein by reference. As another illustrative example only, the needle rotation mechanism may be constructed in accordance with the teachings of U.S. Publication No. 2010 / 0160819, the disclosure of which is incorporated herein by reference. In some other configurations, the needle (110) is rotated by a motor. In still other configurations, the needle (110) is simply rotated by rotating a finger wheel (116). Given the teachings herein, various other suitable ways of providing rotation of the needle (110) will be apparent to those of ordinary skill in the art. It should also be understood that some configurations may not provide rotation of the needle (110).

[0036] The housing (200) also includes a firing rod (226) and a fork (222) that are coupled to the needle (110) and fire the needle (110) distally. By way of example only, such firing may be used in a situation where the biopsy device (10) is mounted to a stereotactic table fixation device or other fixation device, where the tip (112) is adjacent to the patient's breast such that the needle firing mechanism can be activated to drive the needle (110) into the patient's breast. The needle firing mechanism may be configured to drive the needle (110) along any suitable range of motion to drive the tip (112) to any suitable distance relative to the fixed components of the probe (100).

[0037] In this example, the needle firing mechanism is coupled to the needle (110) via a firing lever (226) and a firing fork (222). The firing lever (226) and the firing fork (222) are integrally fixed together. The firing fork (222) includes a pair of fork teeth (224) that receive therebetween the hub member (120) of the needle (110). The fork teeth (224) are positioned between the annular flange (118) and the finger wheel (116) such that the needle (110) will translate integrally with the firing lever (226) and the fork (222). Nevertheless, the fork teeth (224) removably receive the hub member (120) such that when the probe (100) is coupled to the housing (200), the fork (222) can be easily fixed to the hub member (120); and such that when the probe (100) is disconnected from the housing (200), the hub member (120) can be easily removed from the fork (222). The fork teeth (224) are also configured to allow the hub member (120) to rotate between the fork teeth (224). Given the teachings herein, other suitable components, configurations, and relationships will be apparent to those of ordinary skill in the art. The internal components of the needle firing mechanism of this example are configured and arranged as described in U.S. Patent No. 8,858,465, entitled "Biopsy Device with Motorized Needle Firing," issued on October 14, 2014, the disclosure of which is incorporated herein by reference.

[0038] The housing (200) includes motors (not shown) to drive gears (230) to thereby rotate and translate the cutter (150). Additionally, a motor may be used to rotate a rotatable member (not shown) of the tissue sample holder (300). The housing (200) also includes a motor (not shown) operable to drive a firing rod (226) to thereby prime and fire the needle (110). All motors mentioned herein are housed within the housing (200) of the present example and receive power from a vacuum control module (400) via a cable (90). Further, data may be transmitted between the vacuum control module (400) and the housing (200) via the cable (90). As will be described in more detail below, such data may be used by the control module (400) to display certain graphical user interface screens on a touch screen (410) integrated into the control module (400). In some other configurations, one or more motors are powered by one or more batteries located within the housing (200) and / or the probe (100). Thus, it should be understood that, like other components described herein, the cable (90) is merely optional. As yet another merely illustrative variation, the motors may be pneumatically powered such that the cable (90) may be replaced by a conduit that conveys a pressurized fluid medium to the housing (200). As additional other merely illustrative variations, the cable (90) may include one or more rotary drive cables driven by motors located external to the housing (200). It should also be understood that two or three of the motors may be combined into a single motor. Given the teachings herein, other suitable ways to drive the various motors will be apparent to those of ordinary skill in the art.

[0039] III. Exemplary Probe

[0040] The probe (100) of the present example includes a needle (110) extending distally from the probe (100) that is inserted into a patient's tissue to obtain a tissue sample. These tissue samples are stored in a tissue sample holder (300) located at the proximal end of the probe (100). As Figure 1 shown, the vacuum control module (400) is coupled to the probe (100) via a valve assembly (500) and tubes (20, 30, 40, 60), and the vacuum control module is operable to selectively provide vacuum, saline, atmosphere, and ventilation to the probe (100). The internal components of the valve assembly of the present example are configured and arranged as described in U.S. Publication No. 2013 / 0218047, titled "Biopsy Device Valve Assembly", published on August 22, 2013, the disclosure of which is incorporated herein by reference.

[0041] The probe (100) also includes a chassis (106) and a top housing (102) that are fixedly secured together. As in Figure 3Best seen in, the gear (140) is exposed through an opening (107) in the chassis (106) and is operable to drive a cutter actuation mechanism in the probe (100). As in Figure 3 Also seen in, another gear (130) is exposed through the chassis (106) and is operable to rotate the needle (110), as will be described in more detail below. When the probe (100) and the housing (200) are coupled together, the gear (140) of the probe (100) meshes with the exposed gear (230) of the housing (200). Similarly, when the probe (100) and the housing (200) are coupled together, the gear (130) of the probe (100) meshes with the exposed gear (212) of the housing (200).

[0042] The needle (110) of the present example includes a cannula (113) having a tissue piercing tip (112), a lateral orifice (114) proximal to the tip (112), and a hub member (120). The tissue piercing tip (112) is configured to pierce and penetrate tissue without requiring a large amount of force and without the need to pre-form an opening in the tissue prior to inserting the tip (112). Alternatively, if desired, the tip (112) can be blunt (e.g., rounded, flat, etc.). By way of example only, the tip (112) can be configured according to any of the techniques in U.S. Patent No. 8,801,742, entitled "Needle Assembly and Blade Assembly for Biopsy Device", issued on August 12, 2014, the disclosure of which is incorporated herein by reference. As another merely illustrative example, the tip (112) can be constructed according to at least some of the teachings of U.S. Publication No. 2013 / 0150751, the disclosure of which is incorporated herein by reference. Given the teachings herein, other suitable configurations for the tip (112) will be apparent to those of ordinary skill in the art.

[0043] The lateral aperture (114) is sized to receive prolapsed tissue during operation of the device (10). A hollow tubular cutter (not shown) having a sharp distal edge is disposed within the needle (110). The cutter is operable to rotate and translate relative to the needle (110) and pass through the lateral aperture (114) to cut a tissue sample from tissue protruding through the lateral aperture (114). For example, the cutter can be moved from an extended position to a retracted position to "open" the lateral aperture (114) to allow tissue to protrude therethrough; and then moved back from the retracted position to the extended position to cut the protruding tissue. As will be described in more detail below, the needle (110) can be rotated to orient the lateral aperture (114) at any desired angular position about the longitudinal axis of the needle (110). In the present example, this rotation of the needle (110) is facilitated by a hub member (120), which is described in more detail below.

[0044] Although not shown, it should be understood that the needle (110) can include various internal components to subdivide the interior of the needle (110) into a plurality of lumens. In some examples, such a multi-lumen configuration of the needle (110) may be desirable to provide a lumen for the cutter and a lumen for atmospheric venting. An example of such a configuration is disclosed in U.S. Patent No. 7,918,803, entitled "Methods and Devices for Automated Biopsy and Collection of Soft Tissue", issued on April 5, 2011, the disclosure of which is incorporated herein by reference. Of course, any other suitable configuration can be used, as with any other component described herein. A plurality of external openings (not shown) may also be formed in the needle (110), and the plurality of external openings may be in fluid communication with any one or more of the lumens included in the needle. Such external openings can be configured in accordance with the teachings of U.S. Publication No. 2007 / 0032742, entitled "Biopsy Device with Vacuum Assisted Bleeding Control", published on February 8, 2007, the disclosure of which is incorporated herein by reference. Of course, such external openings in the needle (110) are optional only, as with other components described herein.

[0045] The hub member (120) of this example is overmolded around the needle (110) such that the hub member (120) and the needle (110) rotate and translate integrally with each other. By way of example only, the needle (110) may be formed of metal and the hub member (120) may be formed of a plastic material that is overmolded around the needle (110) to integrally secure and form the hub member (120) to the needle (110). Alternatively, the hub member (120) and the needle (110) may be formed of any other suitable materials and may be secured together in any other suitable manner. The hub member (120) includes an annular flange (118) and a finger wheel (116). A gear (130) is slidably and coaxially disposed on the proximal portion of the hub member (120) and wedges to the hub member (120) such that rotation of the gear (130) will cause the hub member (120) and the needle (110) to rotate; the hub member (120) and the needle (110) may also translate relative to the gear (130). The gear (130) is rotatably driven by a gear (212). Alternatively, the needle (110) may be rotated by rotating the finger wheel (116). Given the teachings herein, various other suitable means for manually rotating the needle (110) will be apparent to those of ordinary skill in the art. It should also be understood that rotation of the needle (110) may be automated in a variety of ways, including but not limited to the various forms of automatic needle rotation described in the various references cited herein.

[0046] As noted above, the cutter is operable to simultaneously translate and rotate relative to the needle (110) in order to cut a tissue sample from tissue protruding through the lateral aperture (114). This rotation and translation is accomplished by rotation of a gear (140). Although not shown, it should be understood that in some examples, the gear (140) is coupled to one or more components to provide simultaneous translation and rotation of the cutter. By way of example only, the foregoing cutter actuation components may be configured in accordance with at least some of the teachings of U.S. Publication No. 2008 / 0214955, the disclosure of which is incorporated herein by reference. As yet another illustrative example only, a pneumatic motor or the like may be used to rotate and / or translate the cutter. Given the teachings herein, additional other suitable means for actuating the cutter will be apparent to those of ordinary skill in the art.

[0047] The tissue sample holder (300) of this example provides a plurality of discrete chambers configured to receive tissue samples cut by a cutter and conveyed proximally through a lumen defined by the cutter. In some examples, the tissue sample holder (300) may include one or more tissue receiving trays (not shown) that are removably engaged with a rotatable member (not shown). In such a configuration, the rotatable member may be configured to selectively rotate within an outer cover (302) of the tissue sample holder (300). As a result, the rotatable member may be selectively rotated to collect one or more tissue samples within each of the plurality of discrete chambers. It should be understood that the rotatable member and / or the tray may be configured in many other ways. By way of example only, the rotatable member and / or the tray may be configured in accordance with at least some teachings of U.S. Patent Publication No. 2008 / 0214955, the disclosure of which is incorporated herein by reference. As another illustrative example only, the rotatable member and / or the tray may be configured in accordance with at least some teachings of U.S. Patent No. 8,702,623, the disclosure of which is incorporated herein by reference.

[0048] IV. Exemplary Probe-Sheath Coupling

[0049] As noted above, the probe (100) is generally configured to be removably coupled to the sheath (200). As in Figure 3Best seen in, the sheath (200) includes a set of fork teeth (208), and this set of fork teeth is received by the chassis (106) of the probe (100) to releasably fix the probe (100) to the sheath (200). In particular, first, the probe (100) is positioned on the top of the sheath (200), exactly proximal to the final position of the probe relative to the sheath (200); then, the probe (100) is slid distally to fully engage the fork teeth (208). The probe (100) also includes a set of elastic tabs (104), and this set of elastic tabs can be pressed inward to disengage from the fork teeth (208), so that the user can simultaneously press the two tabs (104), and then pull the probe (100) backward and away from the sheath (200) to disconnect the probe (100) from the sheath (200). Of course, a variety of other types of structures, components, features, etc. (such as bayonet seats, latches, clamps, clips, snap fittings, etc.) can be used to provide a removable connection between the probe (100) and the sheath (200). In addition, in some biopsy devices (10), the probe (100) and the sheath (200) can have an integral or unitary construction, so that these two components cannot be separated. By way of example only, in the form where the probe (100) and the sheath (200) are provided as separable components, the probe (100) can be provided as a disposable component, while the sheath (200) can be provided as a reusable component. Given the teachings herein, other suitable structural and functional relationships between the probe (100) and the sheath (200) will be obvious to those of ordinary skill in the art.

[0050] Figure 4 More details show the internal components of the probe (100) for receiving the fork teeth (208) of the sheath (200). As can be seen, the chassis (106) of the probe (100) defines two openings (150) positioned near the proximal end of the chassis (106). Each opening (150) is sized to receive a corresponding proximally oriented fork tooth (208) of the sheath (200).

[0051] Adjacent to each opening (150), the chassis (106) also defines a cam feature (152) associated with each opening (150). Each cam feature (152) is generally configured to engage the corresponding fork tooth (208) of the sheath (200) to provide a friction or interference fit between the chassis (106) and the fork teeth (208). Thus, the probe (100) is generally releasably fixed to the sheath (200) by the engagement between each cam feature (152) of the probe (100) and each fork tooth (208) of the sheath (200).

[0052] As shown in Figure 5Best seen in, each prong (208) defines an L - shape or a hook - shape and is configured to receive a portion of the chassis (106) of the probe (100). In particular, each prong (208) includes a protrusion (207) that defines a recess (209) sized to receive the chassis (106) of the probe (100). During the coupling between the probe (100) and the chassis (200), the probe (100) is first positioned such that each prong (208) extends through each opening (150) in the chassis (106). Then the probe (100) is driven proximally relative to the housing (200). Additionally, or in the alternative, the housing (200) can be driven distally relative to the probe (100). In any case, this relative movement between the probe (100) and the housing (200) causes each cam feature (152) of the chassis (106) to be received within the recess (209) of each prong (208) and engage each protrusion (207). Due to the engagement between each cam feature (152) and each protrusion (207), the probe (100) is releasably coupled to the housing (200) by friction or interference fit.

[0053] IV. Exemplary Alternative Probes with Probe Locks

[0054] As described above, the probe (100) can be configured to include resilient tabs (104) to provide some locking function when the probe (100) is coupled to the housing (200). However, in some examples, it may be desirable to configure a probe similar to the probe (100) with a locking function and a mechanism to provide positive feedback to the operator regarding such locking. Since the actual coupling mechanism can be obscured by the probe structure similar to the top housing (102) and / or the chassis (106), such a feedback mechanism may be desirable for increasing confidence in the locking. Although various examples of probe lock mechanisms are described below, it should be understood that various alternative probe lock mechanisms can be used without departing from the nature and spirit of the various examples described herein, as will be apparent to those of ordinary skill in the art.

[0055] Figure 6 An exemplary alternative probe (600) for use with the housing (200) of the biopsy system (2) described above is shown. It should be understood that unless otherwise explicitly stated herein, the probe (600) is substantially similar to the probe (100) described above. For example, like the probe (100), the probe (600) of this example includes a needle (610), a chassis (606), and a top housing (602). The needle (610) extends distally from the chassis (606) and the top housing (602). Like the needle (110) described above, the needle (610) of this example includes a cannula (613) that defines a lateral orifice (614) and terminates in a sharp distal tip (612).

[0056] Similar to the above-described needle (110), it is to be understood that the needle (610) may also include various internal components to subdivide the interior of the needle (610) into a plurality of lumens. Such internal components may be configured in accordance with one or more teachings of U.S. Patent No. 7,918,803, entitled "Methods and Devices for Automated Biopsy and Collection of Soft Tissue," issued on April 5, 2011, the disclosure of which is incorporated herein by reference.

[0057] Also similar to the above-described needle (110), the needle (610) of the present example may include a hub member (620) for receiving the fork (222) of the sheath (200). The hub member (620) of the present example is substantially similar to the above-described hub member (120). For example, the hub member (620) of the present example is overmolded around the needle (610) such that the hub member (620) and the needle (610) rotate and translate integrally with each other. Similarly, the hub member (620) includes an annular flange (618) and a finger wheel (616).

[0058] Also similar to the above-described needle (110), the needle (610) of the present example may include a cutter (not shown) configured to rotate and translate within the interior of the needle (610) to cut a tissue sample from the tissue protruding through the lateral aperture (614). This rotation and translation are accomplished by the rotation of a gear (640). Although not shown, it is to be understood that in some examples, the gear (640) is coupled to one or more components to provide simultaneous translation and rotation of the cutter. By way of example only, the foregoing cutter actuation components may be configured in accordance with at least some teachings of U.S. Publication No. 2008 / 0214955, the disclosure of which is incorporated herein by reference. As yet another illustrative example only, a pneumatic motor or the like may be used to rotate and / or translate the cutter. Given the teachings herein, additional other suitable ways to actuate the cutter will be apparent to those of ordinary skill in the art.

[0059] As best seen in Figure 10 the probe further includes gears (640, 630) similar to the above-described gears (140, 130). In particular, the gear (640) is exposed through an opening (607) in the chassis (606) and is operable to drive a cutter actuation mechanism included within the probe (600). As in Figure 10It can also be seen that the gear (630) is exposed through the chassis (606) and is operable to rotate the needle (610). When the probe (600) and the housing (200) are coupled together, the gear (640) of the probe (600) meshes with the exposed gear (230) of the housing (200). Similarly, when the probe (600) and the housing (200) are coupled together, the gear (630) of the probe (600) meshes with the exposed gear (212) of the housing (200).

[0060] Return Figure 6 , the probe (600) further includes a tissue sample holder (800) similar to the above-described tissue sample holder (300). Like the above-described tissue sample holder (300), the tissue sample holder (800) of this example provides a plurality of discrete chambers configured to receive tissue samples cut by a cutter and conveyed proximally through the lumen defined by the cutter. In some examples, the tissue sample holder (800) may include one or more tissue receiving trays (not shown) that are removably engaged with a rotatable member (not shown). In such a configuration, the rotatable member may be configured to selectively rotate within the outer cover (802) of the tissue sample holder (800). As a result, the rotatable member may be selectively rotated to collect one or more tissue samples within each of the plurality of discrete chambers. It should be understood that the rotatable member and / or the tray may be configured in many other ways. By way of example only, the rotatable member and / or the tray may be configured according to at least some teachings of U.S. Patent Publication No. 2008 / 0214955, the disclosure of which is incorporated herein by reference. As another illustrative example only, the rotatable member and / or the tray may be configured according to at least some teachings of U.S. Patent No. 8,702,623, the disclosure of which is incorporated herein by reference.

[0061] Unlike the above-described probe (100), the probe (600) of this example includes a probe lock (660) that is generally configured to provide positive feedback to an operator when the probe (600) is coupled to the housing (200) and also provide a locking mechanism to prevent the probe (600) from disconnecting from the housing (200). As best seen in Figure 7 , the probe lock (660) includes a lock member (662), a retainer (680), and an elastic member (698). The lock member (662) is disposed within the probe (600) and on the upper surface of the chassis (606). As will be described in more detail below, the lock member (662) is generally configured to automatically lock when the probe (600) is coupled to the housing (200), while providing positive feedback of such locking to the operator.

[0062] As in Figure 8Best seen in, the lock member (662) includes an unlocking indicator (664), a locking indicator (666), and a body (668) disposed between each indicator (664, 666). As will be described in more detail below, the lock member (662) is generally configured to automatically transition from an unlocked position to a locked position in response to the fork teeth (208) of the housing (200), while also positively indicating this transition to the operator.

[0063] Each indicator (664, 666) is configured to provide the operator with a positive indicator related to the position of the lock member (662) within the probe (600), and thereby indicate the operating state of the probe lock (660) (e.g., locked or unlocked). For example, in the present example, each indicator (664, 666) projects from opposite sides of the body (668). As will be described in more detail below, this positioning allows at least a portion of a particular indicator (664, 666) to project from the top housing (602), while the other indicator (666, 664) is flush or retracted within the top housing (602). Additionally, each indicator is configured as a button or actuator. As will be described in more detail below, in some cases, this configuration allows the indicators (664, 666) to be used to move or otherwise actuate the lock member (662) within the probe (600).

[0064] Each indicator (664, 666) defines a corresponding fork tooth clearance (665, 667). As will be described in more detail below, each fork tooth clearance (665, 667) is configured to allow the fork teeth (208) of the housing (200) to pass through the chassis (606) and into the interior of the probe (600) during the coupling of the probe (600) to the housing (200). In other words, each fork tooth clearance (665, 667) is configured to provide clearance for a given fork tooth (208) of the housing (200) to enter the probe (600).

[0065] The body (668) is shaped to define a bridging clearance (676) and an attachment point (678). The bridging clearance (676) is sized and shaped to provide clearance for various internal components of the probe (600), while still allowing the lock member (662) to move within the interior of the probe (600). As will be described in more detail below, the attachment point (678) is configured for providing a point attachment for an elastic member (698) such that the elastic member (698) can be coupled to the body (668). As will also be described in more detail below, the attachment point (678) is generally oriented towards one side of the body (668) to facilitate a particular movement of the body (668) under the influence of the elastic member (698).

[0066] The body (668) further includes a flexible latch (670) that projects proximally from the proximal surface of the body (668). The flexible latch (670) is generally configured to provide selective engagement with at least a portion of the chassis (606), thereby providing a release mechanism for the lock member (662). As will be described in more detail below, the flexible latch (670) is configured to cause the probe lock (660) to automatically transition from an unlocked configuration to a locked configuration in response to a particular prong (208) of the housing (200). Accordingly, it should be understood that at least a portion of the flexible latch (670) may be configured to have some generally flexible but resilient material properties.

[0067] The flexible lock (670) includes a bent portion (672) and a toothed end (674). The bent portion (672) extends proximally from the body (668) and then bends laterally away from the initial extension axis. In other words, the bent portion (672) generally forms a hook or buckle shape. The thickness of the bent portion (672) may also be configured to provide some flexibility to the flexible lock (670) while also providing some resiliency. As will be described in more detail below, this configuration generally facilitates the ability of the flexible lock (670) to flex or move in response to engagement with a particular prong (208) of the housing (200).

[0068] The bent portion (672) terminates at the toothed end (674). The toothed end (674) generally provides a flat surface that is configured to releasably engage at least a portion of the chassis (606). As will be described in more detail below, the toothed end (674) is generally configured to engage the retainer (680) to hold the lock member (662) in a given position until acted upon by a particular prong (208) of the housing (200).

[0069] As best seen in Figure 9 the chassis (606) generally substantially resembles the aforementioned chassis (106). For example, like the chassis (106), the chassis (606) of the present example includes an opening (650) that is configured to receive a particular prong (208) of the housing (200). Similarly, the chassis (606) further includes a cam feature (652) adjacent to each opening (650) to provide a friction or interference fit with a selected prong (208) of the housing (200).

[0070] Unlike the aforementioned chassis (106), the chassis (606) of the present example defines a retainer (680) that extends upwardly from the lower surface of the chassis (606). The retainer (680) is positioned adjacent to the opening (650). Although the retainer (680) of the present example is configured to be generally integral with the chassis (606), it should be understood that in other examples, the retainer (680) may be a separate component that is fastened or otherwise secured to the chassis (606).

[0071] The retainer (680) generally includes a wedge portion (682) that defines a ramp (684) and a flat surface (686). As will be appreciated, the wedge portion (682) is generally configured to engage with the flexible lock (670) to manipulate the flexible lock (670) through various positions. Thus, it should be understood that the specific geometry of the wedge portion (682) is generally configured to manipulate the flexible lock (670). In this regard, the ramp (684) is generally configured to push the flexible lock (670) proximally in response to a lateral movement of the lock member (662) to guide the flexible lock (670) into engagement with the flat surface (686). Thus, the ramp (684) slopes proximally toward the flat surface (686). As will be described in more detail below, the flat surface (686) is configured to provide a surface for the toothed end (674) of the flexible lock (670) to engage the retainer (680).

[0072] The flexible lock (670) and the retainer (680) of this example are shown oriented on a particular side of the chassis (606). Thus, as will be described in more detail below, both the flexible lock (670) and the retainer (680) are configured to engage a particular prong (208) of the housing (200). However, it should be understood that in other examples, both the flexible lock (670) and the retainer (680) may be located on the opposite side of the chassis (606) to engage another prong (208). Similarly, in other examples, the flexible lock (670) and the retainer (680) may be replicated in a plurality of positions relative to the chassis (606) to engage a plurality of prongs (208) of the housing (200). Nevertheless, given the teachings herein, various alternative configurations of the flexible lock (670) and the retainer (680) will be apparent to those of ordinary skill in the art.

[0073] The chassis (606) also includes an attachment post (690). The attachment post (690) is generally configured to provide another attachment point for an elastic member (698) that extends between the attachment post (690) and an attachment point (678) of the body (668). Thus, it should be understood that the elastic member (698) is generally configured to provide tension between the attachment post (690) and the attachment point (678). To provide an appropriate amount of tension, the attachment post (690) is positioned on the opposite side of the chassis (606) relative to the attachment point (678).

[0074] The resilient member (698) of this example is configured as a helical spring having hooks at each end, the hooks being configured to couple the resilient member (698) to attachment points (678) and attachment posts (690). Although the resilient member (698) is shown as a helical spring, it should be understood that other examples may include other components configured to provide tension, such as elastic bands or shape memory alloys. As will be described in more detail below, the resilient member (698) is generally configured to laterally pull the lock member (662) across the chassis (606) towards the attachment post (690), thereby transitioning the probe lock (660) from an unlocked configuration to a locked configuration.

[0075] Figures 10 to 12C An exemplary operation of coupling the probe (600) to the housing (200) is shown. As can be seen in Figure 10 The operation begins with the probe (600) being separated from the housing (200). In some operations, the probe (600) is provided to the operator with the probe lock (660) in an unlocked configuration. In this configuration, the lock member (662) is oriented such that at least a portion of the unlock indicator (664) protrudes from the top housing (602) of the probe (600).

[0076] In other operations, the probe (600) may be provided to the operator with the probe lock (660) in a locked configuration. This may be an undesirable situation prior to coupling the probe (600) to the housing (200) as the probe lock (660) may interfere with the prongs (208) of the housing (200). Thus, in some operations, the operator may wish to transition the probe lock (660) to an unlocked configuration prior to coupling the probe (600) to the housing (200). To do so, the operator may laterally push the lock indicator (666) relative to the longitudinal axis of the probe (600) until the unlock indicator (664) protrudes from the top housing (602). At this stage, the probe (600) is ready to be coupled to the housing (200).

[0077] To initiate the coupling of the probe (600) to the housing (200), the operator may align the probe (600) with the housing (200) such that each opening (650) of the probe (600) is aligned with each prong (208) of the housing (200), as Figure 10 shown. The probe (600) is then placed into the top of the housing (200) where each prong (208) of the housing (200) is inserted into each opening (650) of the probe (600), as can be seen by comparing Figure 10 and Figure 11A .

[0078] Once the probe (600) is as Figure 11APositioned as shown, the probe (600) mates with the housing (200), but is not yet locked in place. In particular, as can be seen in Figure 11A and Figure 12A , the tine (208) is only inserted into the opening (650) and is not locked to the cam feature (652).

[0079] To lock each tine (208) to each corresponding cam feature (652), the probe (600) is translated distally relative to the housing (200), as Figure 11B shown. Alternatively, the housing (200) can be translated proximally relative to the probe (600), or some combination of the probe (600) and the housing (200) can be translated relative to each other. In any case, this proximal translation causes each tine (208) to engage each cam feature (652) to lock the probe (600) to the housing (200) by an interference or friction fit.

[0080] During the coupling of the probe (600) to the housing (200), the probe lock (660) also automatically operates to transition from an unlocked configuration to a locked configuration. When the transition to the unlocked or locked state occurs is indicated by the unlocking indicator (664) or the locking indicator (666) protruding from the top housing (602). Additionally, in some examples, the transition from the unlocked configuration to the locked configuration can be accompanied by an audible "click", "pop", or "ding" sound to further provide positive feedback of the locking.

[0081] As best seen in Figure 12A , the probe lock (660) is initially in an unlocked configuration. In this configuration, the locking member (662) is oriented transverse to one side of the chassis (606) such that the unlocking indicator (664) protrudes from this side of the chassis (606). When the locking member (662) is in this position, the flexible lock (670) engages the retainer (680). In particular, the toothed end (674) of the flexible lock (670) engages the flat surface (686) of the retainer (680) to hold the locking member (662) in the unlocked position. Additionally, the locking member (662) is held in place against the elastic bias of the elastic member (698) such that the elastic member (698) is in a stretched configuration.

[0082] As Figure 12B shown, the distal advancement of the probe (600) causes the tine (208) of the housing (200) to engage the toothed end (674) of the flexible lock (670). This engagement pushes the flexible lock (670) to cause bending at the bending portion (672). The bending of the flexible lock (670) continues until the toothed end (674) disengages from the flat surface (686) of the retainer (680).

[0083] Once the toothed end (674) of the flexible lock (670) disengages from the flat surface (686) of the retainer (680), the lock member (662) is free to translate laterally within the probe (600) relative to the longitudinal axis of the probe (600) (e.g., perpendicular to the longitudinal axis). With this increased degree of freedom, the resilient member (698) can pull the lock member (662) from the Figure 12B position shown to the Figure 12C position shown, which corresponds to the locked configuration.

[0084] In the locked configuration, the lock member (662) is positioned such that the unlock indicator (664) is generally positioned within the perimeter of the chassis (606), while the lock indicator (666) is generally positioned outside the perimeter of the chassis (606). In this position, each prong gap (665, 667) is also positioned away from the prong (208). Accordingly, each indicator (664, 666) is positioned adjacent to the distal surface of each prong head (208). Accordingly, each indicator (664, 666) physically locks each prong (208) into engagement with the cam feature (652) to prevent the probe (600) from disconnecting from the housing (200).

[0085] Once the probe (600) is coupled to the housing (200) as described above, a biopsy procedure can be performed. At the end of such a procedure, the operator may wish to disconnect the probe (600) from the housing (200) in order to dispose of the probe (600) and reuse the housing (200). To disconnect the probe (600) from the housing (200), the above procedure can be repeated. In particular, the operator can press the lock indicator (666) to move the lock member (662) back to the Figure 12A unlocked position shown.

[0086] Once the lock member (662) is moved, the unlock indicator (664) indicates to the operator that the probe (600) is unlocked by generally protruding outside the outer perimeter of the chassis (606). The operator can then remove the probe (600) by pulling the probe (600) proximally relative to the housing (200) to disengage each prong (208) from each corresponding cam feature (652).

[0087] V. Exemplary Alternative Probe with Manual Probe Lock

[0088] Figures 13 to 14Another exemplary alternative probe (900) is shown that is substantially similar to the above-described probe (600). For example, like the probe (600), the probe (900) of this example includes a needle (910), a chassis (906), and a top housing (902). The needle (910) extends distally from the chassis (906) and the top housing (902). Like the above-described needle (610), the needle (910) of this example includes a cannula (913) that defines a lateral orifice (914) and terminates in a sharp distal tip (912).

[0089] Like the above-described needle (610), it should be understood that the needle (910) may also include various internal components to subdivide the interior of the needle (910) into a plurality of lumens. Such internal components may be configured in accordance with one or more teachings of U.S. Patent No. 7,918,803, entitled "Methods and Devices for Automated Biopsy and Collection of Soft Tissue," issued on April 5, 2011, the disclosure of which is incorporated herein by reference.

[0090] Also like the above-described needle (610), the needle (910) of this example may include a hub member (920) for receiving the fork (222) of the sheath (200). The hub member (920) of this example is substantially similar to the above-described hub member (620). For example, the hub member (920) of this example is overmolded around the needle (910) such that the hub member (920) and the needle (910) rotate and translate integrally with each other. Similarly, the hub member (920) includes an annular flange (918) and a finger wheel (916).

[0091] Also like the above-described needle (610), the needle (910) of this example may include a cutter (not shown) that is configured to rotate and translate within the needle (910) to cut a tissue sample from the tissue protruding through the lateral orifice (914). This rotation and translation is accomplished by the rotation of a gear (940). Although not shown, it should be understood that in some examples, the gear (940) is coupled to one or more components to provide simultaneous translation and rotation of the cutter. By way of example only, the foregoing cutter actuation components may be configured in accordance with at least some teachings of U.S. Publication No. 2008 / 0214955, the disclosure of which is incorporated herein by reference. As yet another illustrative example only, a pneumatic motor or the like may be used to rotate and / or translate the cutter. Given the teachings herein, additional other suitable ways to actuate the cutter will be apparent to those of ordinary skill in the art.

[0092] The probe further includes gears similar to the above-described gears (640, 630). Like the gears (640, 630), the gears in this example can be exposed through openings in the chassis (906) to drive the rotation of the cutter actuation mechanism and the needle (910). As similarly discussed above with respect to the gears (640, 630), when the probe (900) and the housing (200) are coupled together, each gear in this example can engage with the corresponding gears (212, 230) of the housing (200).

[0093] Although not shown, it should be understood that the probe (900) of this example can be equipped with a tissue sample holder similar to the above-described tissue sample holders (300, 800). Like the above-described tissue sample holders (300, 800), the tissue sample holder of this example can provide a plurality of discrete chambers that can be configured to receive tissue samples cut by the cutter and conveyed proximally through the lumen defined by the cutter. In some examples, the tissue sample holder can include one or more tissue receiving trays (not shown) that are removably engaged with a rotatable member (not shown). In such a configuration, the rotatable member can be configured to selectively rotate within the outer cover (not shown) of the tissue sample holder. As a result, the rotatable member can be selectively rotated to collect one or more tissue samples within each of the plurality of discrete chambers. It should be understood that the rotatable member and / or the tray can be configured in many other ways. By way of example only, the rotatable member and / or the tray can be configured in accordance with at least some teachings of U.S. Patent Publication No. 2008 / 0214955, the disclosure of which is incorporated herein by reference. As another illustrative example only, the rotatable member and / or the tray can be configured in accordance with at least some teachings of U.S. Patent No. 8,702,623, the disclosure of which is incorporated herein by reference.

[0094] Like the above-described probe (600), the probe (900) of this example includes a probe lock (960) that is generally configured to provide positive feedback to the operator when the probe (900) is coupled to the housing (200) and also to provide a locking mechanism to prevent the probe (900) from disconnecting from the housing (200). The probe lock (960) is generally similar to the above-described probe lock (660). However, unlike the probe lock (660), the probe lock (960) of this example is generally configured for manual actuation rather than incorporating one or more automatic actuation features.

[0095] As in Figure 14Best seen in [description], the probe lock (960) includes a lock member (962), but omits the structure similar to the retainer (680) and the elastic member (698). The lock member (962) is disposed inside the probe (900) and on the upper surface of the chassis (906). As will be described in more detail below, the lock member (962) is generally configured to be actuated by the user to lock when the probe (900) is coupled to the housing (200), while also providing positive feedback of this locking to the operator.

[0096] The lock member (962) includes an unlocking indicator (964), a locking indicator (966), and a body (968) disposed between each indicator (964, 966). As will be described in more detail below, the lock member (962) is generally configured to be manually translated within the probe (900) to move from an unlocked position to a locked position, while also positively indicating this transition to the operator.

[0097] Each indicator (964, 966) is configured to provide a positive indicator to the operator related to the position of the lock member (962) within the probe (900), and thereby indicate the operating state of the probe lock (960) (e.g., locked or unlocked). For example, in the present example, each indicator (964, 966) protrudes from opposite sides of the body (968). As will be described in more detail below, this positioning allows at least a portion of a particular indicator (964, 966) to protrude from the top housing (902), while the other indicator (966, 964) is flush or retracted within the top housing (902). Additionally, each indicator is configured as a button or actuator. As will be described in more detail below, in some cases, this configuration allows the indicators (964, 966) to be used to move or otherwise actuate the lock member (962) within the probe (900).

[0098] Each indicator (964, 966) defines a corresponding fork clearance (965, 967). As will be described in more detail below, each fork clearance (965, 967) is configured to allow the fork (208) of the housing (200) to pass through the chassis (906) and into the interior of the probe (900) during the coupling of the probe (900) to the housing (200). In other words, each fork clearance (965, 967) is configured to provide clearance for a given fork (208) of the housing (200) to enter the probe (900).

[0099] The body (968) is shaped to define a bridging clearance (976), but omits the structure similar to the attachment point (678). The bridging clearance (976) is sized and shaped to provide clearance for various internal components of the probe (900), while still allowing the lock member (962) to move within the probe (900).

[0100] Unlike the above-described body (668), the body (968) of this example omits a structure similar to the flexible latch (670). Instead, the body (968) further includes a tracking arm (970) that extends proximally from the proximal surface of the body (968). The tracking arm (970) is generally configured to move a magnet or other component when the lock member (962) moves to provide certain signals to the housing (200). In particular, the tracking arm (970) extends proximally from the body (968) to avoid interfering with the operation of any components such as the fork teeth (208). An inverted cup (972) is positioned on the proximal end of the tracking arm (970). Although not shown, it should be understood that in this example, a magnet may be disposed in the cup (972). In this configuration, the magnet is slid along the surface of the chassis (906) by the tracking arm (970). As will be described in more detail below, some types of housing (200) may include a Hall effect sensor or other device positioned to correspond to the magnet. Such a sensor can then send a signal to the vacuum control module (400) to identify the position of the lock member (962) and thus the state of the probe lock (960).

[0101] The body (968) further includes an unlocking pawl (974) and a locking pawl (978). As best seen in Figure 15 both the unlocking pawl (974) and the locking pawl (978) are configured to engage corresponding pawl features (903) integrated into the top housing (902). As will be described in more detail below, each pawl (974, 978) is configured to releasably hold the lock member (962) in a predetermined position until the lock member (962) is manually actuated by an operator. In this example, the pawls (974, 978) are configured as two elongated notches in the surface of the body (968), while the pawl features (903) are configured as protrusions. However, it should be understood that in other examples, this configuration may be reversed. In still other examples, the pawls (974, 978) and / or the pawl features (903) may be configured as any other suitable resilient locking mechanism, as will be apparent to those of ordinary skill in the art.

[0102] In use, the use of the probe lock (960) is similar to the above-described probe lock (660). For example, similarly as described above, the operation begins with the probe (900) being separated from the housing (200). In some operations, the probe (900) is provided to the operator with the probe lock (960) in an unlocked configuration. In this configuration, the lock member (962) is oriented such that at least a portion of the unlocking indicator (964) protrudes from the top housing (902) of the probe (900).

[0103] In other operations, the probe (900) may be provided to the operator with the probe lock (960) in a locked configuration. This may be an undesirable situation before the probe (900) is coupled to the housing (200) because the probe lock (960) may interfere with the fork teeth (208) of the housing (200). Thus, in some operations, the operator may wish to transition the probe lock (960) to an unlocked configuration before coupling the probe (900) to the housing (200). To do this, the operator may laterally push the lock indicator (966) relative to the longitudinal axis of the probe (900) until the unlock indicator (964) protrudes from the top housing (902). At this stage, the probe (900) is ready to be coupled to the housing (200).

[0104] To begin the coupling of the probe (900) to the housing (200), the operator may align the probe (900) with the housing (200) such that the plurality of openings (950) of the probe (900) are correspondingly aligned with the fork teeth (208) of the housing (200). The probe (900) is then placed into the top of the housing (200) where each fork tooth (208) of the housing (200) is inserted into each opening (950) of the probe (900).

[0105] Once the probe (900) is positioned such that the fork teeth (208) are inside the openings (950), the probe (900) is mated with the housing (200) but not yet locked in place. In particular, the fork teeth (208) are only inserted into the openings (950) and not locked to the corresponding cam features (952) of the plurality of cam features (952).

[0106] To lock each fork tooth (208) to each corresponding cam feature (952), the probe (900) is translated distally relative to the housing (200). Alternatively, the housing (200) may be translated proximally relative to the probe (900), or some combination of the probe (900) and the housing (200) may be translated relative to each other. In any case, this proximal translation causes each fork tooth (208) to engage each cam feature (952) to lock the probe (900) to the housing (200) by interference or friction fit.

[0107] Unlike the operations described above for the probe (600), the probe lock (960) of this example does not lock automatically. Instead, as Figure 15As shown by the arrow in [Figure 0], the probe lock (960) is actuated manually by the operator to initiate locking. In particular, the probe lock (960) is initially in an unlocked configuration. In this configuration, the lock member (962) is oriented laterally to one side of the chassis (906) such that the unlock indicator (964) projects from this side of the chassis (906). With the lock member (962) in this position, the unlock pawl (974) engages the pawl feature (903) to releasably hold the lock member (962) in the locked position.

[0108] Once the probe (900) is fully advanced distally such that the fork teeth (208) of the housing (200) are fully engaged with the cam feature (952), the lock member (962) can be manually actuated to transition the probe lock (960) to the locked configuration. This transition is initiated by the operator pressing the unlock indicator (964) inward to move the lock member (962) perpendicular to the longitudinal axis of the probe (900). Moving it in this way positions the lock member (962) such that the unlock indicator (964) is generally positioned within the perimeter of the chassis (906), while the lock indicator (966) is generally positioned outside the perimeter of the chassis (906). In this position, each fork tooth gap (965, 967) is also positioned away from the fork teeth (208). Accordingly, each indicator (964, 966) is positioned adjacent to the distal surface of each fork head (208). Thus, each indicator (964, 966) physically locks each fork tooth (208) into engagement with the cam feature (952) to prevent the probe (900) from disconnecting from the housing (200).

[0109] As described above, the tracking arm (970), the cup (972), the magnet disposed within the cup (972), and the Hall effect sensor disposed within the housing (200) can be used to track the transition from the unlocked configuration to the locked configuration. In some operations, the vacuum control module (400) can interpret the signal from the Hall effect sensor and generate a graphical indication of the state of the probe lock (960) (e.g., locked or unlocked). By way of example only, such a graphical indication can be a graphical representation of a padlock in the unlocked or locked configuration. In some examples, the graphical representation can also be color-coded. Additionally, it should be understood that in some examples, the software in the vacuum control module (400) can be coded with certain software locking features to prevent the use of the housing (200) until the probe (900) is locked to the housing. Alternatively, the vacuum control module (400) can be configured to emit an audible alarm if the operator attempts to operate the housing (200) when the probe (900) is not locked to the housing. In any case, it should be understood that the tracking arm (970) and the cup (972) can be used to provide the operator with an additional means of feedback to confirm that the probe (900) is securely locked to the housing (200).

[0110] Once the probe (900) is coupled to the housing (200) as described above, a biopsy procedure can be performed. At the end of such a procedure, the operator may wish to disconnect the probe (900) from the housing (200) in order to dispose of the probe (900) and reuse the housing (200). To disconnect the probe (900) from the housing (200), the above-described procedure can be repeated. In particular, the operator can press the lock indicator (966) to move the lock member (962) back to Figure 15 the unlocked position shown.

[0111] Once the lock member (962) is moved, the unlock indicator (964) indicates to the operator that the probe (900) is unlocked by protruding generally beyond the outer perimeter of the chassis (906). The operator can then remove the probe (900) by pulling the probe (900) proximally relative to the housing (200) to disengage each prong (208) from each corresponding cam feature (952).

[0112] VI. Exemplary Combinations

[0113] The following examples relate to various non-exhaustive ways in which the teachings herein can be combined or applied. It should be understood that the following examples are not intended to limit the scope of any claims that may be presented at any time in this application or a subsequent application of this application. No disclaimer is made. The following examples are provided for illustrative purposes only. It is contemplated that the various teachings herein can be arranged and applied in many other ways. It is also contemplated that some variations may omit certain features mentioned in the following examples. Therefore, none of the aspects or features mentioned below should be considered critical unless the inventors or successors in interest of the inventors specifically state so at a later date. If any claims are presented in this application or a subsequent document related to this application that include additional features other than those mentioned below, such additional features should not be considered to be added for any reason related to patentability.

[0114] Example 1

[0115] A biopsy device, comprising: a probe including a probe body and a needle extending distally from the probe body; a housing, wherein the probe is releasably coupled to the housing; and a probe lock, wherein the probe lock includes a lock member configured to move laterally relative to a longitudinal axis defined by the needle to selectively lock the probe to the housing and provide a positive indication that the probe is locked to the housing.

[0116] Example 2

[0117] The biopsy device according to Example 1, wherein the lock member is configured to automatically transition from an unlocked position to a locked position when the probe is coupled to the housing.

[0118] Example 3

[0119] The biopsy device as described in Example 1, wherein the probe lock includes a release mechanism, and wherein the release mechanism is configured to respond to a portion of the sheath to automatically release the lock member from the unlocked position.

[0120] Example 4

[0121] The biopsy device as described in Example 1, wherein the probe includes a retainer, and wherein the probe lock includes a flexible lock extending from the lock member, and wherein the flexible lock is configured to engage the retainer to releasably hold the lock member in the unlocked position.

[0122] Example 5

[0123] The biopsy device as described in Example 4, wherein the flexible lock is elastically biased to engage the retainer, and wherein the flexible lock is configured to disengage from the retainer in response to engagement between at least a portion of the sheath and the flexible lock.

[0124] Example 6

[0125] The biopsy device as described in Example 4 or 5, wherein the lock member is configured to be manually actuated from the locked position to the unlocked position, and wherein the flexible lock is configured to engage the retainer when the lock member is manually actuated from the locked position to the unlocked portion.

[0126] Example 7

[0127] The biopsy device as described in Example 1, wherein the lock member is configured to be manually actuated between the unlocked position and the locked position.

[0128] Example 8

[0129] The biopsy device as described in any one or more of Examples 1 to 7, wherein the probe lock is configured to provide positive feedback to the operator indicating when the probe is selectively locked to the sheath.

[0130] Example 9

[0131] The biopsy device as described in any one or more of Examples 1 to 8, wherein the lock member is configured to extend outwardly from a portion of the probe body to provide positive feedback to the operator indicating when the probe is selectively locked to the sheath.

[0132] Example 10

[0133] The biopsy device according to any one or more of Examples 1 to 9, wherein the probe lock is configured to transition between an unlocked configuration and a locked configuration, wherein the lock member is configured to extend from a first side of the probe body when the probe lock is in the unlocked configuration, and wherein the lock member is configured to extend from a second side of the probe body when the probe lock is in the locked configuration.

[0134] Example 11

[0135] The biopsy device according to any one or more of Examples 1 to 10, wherein the probe lock is configured to provide an audible sound to an operator indicating when the probe is selectively locked to the sheath.

[0136] Example 12

[0137] The biopsy device according to Example 1, wherein the probe lock further includes a flexible lock, an elastic member, and a retainer, wherein the flexible lock is configured to releasably fasten to the retainer to hold the lock member in the unlocked position against the elastic bias of the elastic member.

[0138] Example 13

[0139] The biopsy device according to Example 12, wherein the retainer includes a ramp and a flat surface, wherein the flexible lock includes a bent portion terminating in a toothed end, and wherein the toothed end of the flexible lock is configured to engage the flat surface of the retainer to hold the lock member in the unlocked position against the elastic bias of the elastic member.

[0140] Example 14

[0141] The biopsy device according to Example 13, wherein the ramp of the retainer is configured to flex the bent portion of the flexible lock, thereby moving the toothed end into engagement with the flat surface of the retainer.

[0142] Example 15

[0143] The biopsy device according to Example 13 or 14, wherein the bent portion of the flexible lock is configured to deform when the toothed end engages at least a portion of the sheath.

[0144] Example 16

[0145] A probe for use with a sheath of a biopsy device, the probe comprising: a probe body; a needle extending distally from the probe body; and a probe lock including a lock member, wherein the lock member includes an unlock indicator and a lock indicator, and wherein the lock member is configured to translate within the probe body to alternately expose the unlock indicator and the lock indicator relative to the exterior of the probe body.

[0146] Example 17

[0147] The probe as described in Example 16, wherein the locking member is movable relative to the probe body between an unlocked position and a locked position, and wherein the probe lock is configured to lock the probe to the housing when the locking member is in the locked position.

[0148] Example 18

[0149] The probe as described in Example 16 or 17, wherein the locking member defines a first gap associated with the unlocking indicator, and wherein the locking member further defines a second gap associated with the locking indicator, and wherein the locking member is configured to translate laterally within the probe body to move the first gap and the second gap relative to respective openings in a pair of openings in the probe body.

[0150] Example 19

[0151] The probe as described in any one or more of Examples 16 to 18, wherein the probe lock further includes a magnet, and wherein the magnet is configured to move in conjunction with the locking member to convey the position of the locking member to the housing.

[0152] Example 20

[0153] A method for releasably securing a probe to a housing, the method comprising: aligning a plurality of tines of the housing with corresponding openings in a chassis of the probe; inserting each of the plurality of tines into a corresponding one of the plurality of openings in the chassis; driving the probe distally relative to the housing; and locking the probe to the housing by laterally moving a locking member of a probe lock relative to a longitudinal axis defined by the probe to physically prevent movement of at least one of the plurality of tines relative to the probe, wherein moving the locking member also indicates that the probe is locked to the housing.

[0154] Example 21

[0155] The method as described in Example 20, wherein the step of locking the probe to the housing includes automatically moving the locking member in response to contact between at least one tine and a flexible lock of the probe lock.

[0156] Example 22

[0157] The method as described in Example 20, wherein the step of locking the probe to the housing includes manually actuating the locking member.

[0158] Example 23

[0159] The method according to any one or more of Examples 20 to 22, the method further comprising unlocking the probe from the housing by laterally moving the locking member of the probe lock in a direction opposite to the movement during the locking step relative to the longitudinal axis.

[0160] Example 24

[0161] The method according to any one or more of Examples 20 to 23, wherein the step of locking the probe to the housing further comprises moving a magnet disposed within the probe relative to a Hall effect sensor disposed within the housing.

[0162] VII. Conclusion

[0163] It should be understood that any patent, publication, or other publicly available material purported to be incorporated herein by reference is incorporated herein only to the extent that such incorporated material does not conflict with the existing definitions, statements, or other publicly available material set forth in this disclosure. Accordingly, and if necessary, the disclosure as expressly set forth herein supersedes any conflicting material incorporated herein by reference. Any material or portion thereof purported to be incorporated herein by reference that conflicts with the existing definitions, statements, or other publicly available material set forth herein will be incorporated only to the extent that no conflict will arise between the incorporated material and the existing publicly available material.

[0164] Various embodiments of the invention have been shown and described, and other adaptations of the methods and systems described herein can be achieved by those of ordinary skill in the art through appropriate modifications without departing from the scope of the invention. Several such potential modifications have been mentioned, and others will be apparent to those skilled in the art. For example, the examples, embodiments, geometries, materials, dimensions, ratios, steps, etc. discussed above are illustrative and not required. Accordingly, the scope of the invention should be considered in light of the appended claims and should not be construed as limited to the details of the structures and operations shown and described in the specification and drawings.

Claims

1. A biopsy device, the biopsy device comprising: (a) a probe, the probe comprising a probe body and a needle extending distally from the probe body; (b) a housing, the probe being releasably coupled to the housing; and (c) a probe lock, the probe lock comprising a locking member configured to move laterally relative to a longitudinal axis defined by the needle to selectively lock the probe to the housing and provide a positive indication that the probe is locked to the housing; wherein the probe comprises a retainer, and the probe lock comprises a flexible lock extending from the locking member, the flexible lock being configured to engage the retainer to releasably hold the locking member in an unlocked position.

2. The biopsy device according to claim 1, wherein the locking member is configured to automatically transition from the unlocked position to the locked position when the probe is coupled to the housing.

3. The biopsy device according to claim 1, wherein the probe lock comprises a release mechanism configured to respond to a portion of the housing to automatically release the locking member from the unlocked position.

4. The biopsy device according to claim 1, wherein the flexible lock is elastically biased to engage the retainer, and the flexible lock is configured to disengage from the retainer in response to engagement between at least a portion of the housing and the flexible lock.

5. The biopsy device according to claim 1 or 4, wherein the locking member is configured to be manually actuated from the locked position to the unlocked position, and the flexible lock is configured to engage the retainer when the locking member is manually actuated from the locked position to the unlocked position.

6. The biopsy device according to claim 1, wherein the locking member is configured to be manually actuated between the unlocked position and the locked position.

7. The biopsy device according to any one of claims 1 to 4 and 6, wherein the probe lock is configured to provide a positive feedback to the operator indicating when the probe is selectively locked to the housing.

8. The biopsy device according to any one of claims 1 to 4 and 6, wherein the locking member is configured to extend outwardly from a portion of the probe body to provide a positive feedback to the operator indicating when the probe is selectively locked to the housing.

9. The biopsy device according to any one of claims 1 to 4 and 6, wherein the probe lock is configured to transition between an unlocked configuration and a locked configuration, and the locking member is configured to extend from a first side of the probe body when the probe lock is in the unlocked configuration and to extend from a second side of the probe body when the probe lock is in the locked configuration.

10. The biopsy device according to any one of claims 1 to 4 and 6, wherein the probe lock is configured to provide an audible sound to the operator indicating when the probe is selectively locked to the housing.

11. A biopsy device, the biopsy device comprising: (a) a probe, the probe comprising a probe body and a needle extending distally from the probe body; (b) a housing, the probe being releasably coupled to the housing; and (c) A probe lock, the probe lock including a locking member configured to move laterally relative to a longitudinal axis defined by the needle to selectively lock the probe to the housing and provide a positive indication of the probe being locked to the housing; wherein the probe lock further includes a flexible lock, an elastic member, and a retainer, the flexible lock being configured to releasably fasten to the retainer to hold the locking member in an unlocked position against the elastic bias of the elastic member.

12. The biopsy device according to claim 11, wherein the retainer includes a ramp and a flat surface, the flexible lock includes a bent portion terminating in a toothed end, and the toothed end of the flexible lock is configured to engage the flat surface of the retainer to hold the locking member in the unlocked position against the elastic bias of the elastic member.

13. The biopsy device according to claim 12, wherein the ramp of the retainer is configured to flex the bent portion of the flexible lock, thereby moving the toothed end into engagement with the flat surface of the retainer.

14. The biopsy device according to claim 12 or 13, wherein the bent portion of the flexible lock is configured to deform when the toothed end engages at least a portion of the housing.

15. A probe for use with a housing of a biopsy device, the probe including: (a) a probe body; (b) a needle extending distally from the probe body; and (c) a probe lock, the probe lock including a locking member including an unlock indicator and a lock indicator, the locking member being configured to translate within the probe body to alternately expose the unlock indicator and the lock indicator relative to an exterior of the probe body; wherein the probe includes a retainer, and the probe lock includes a flexible lock extending from the locking member, the flexible lock being configured to engage the retainer to releasably hold the locking member in the unlocked position.

16. The probe according to claim 15, wherein the locking member is movable relative to the probe body between an unlocked position and a locked position, and the probe lock is configured to lock the probe to the housing when the locking member is in the locked position.

17. The probe according to claim 15 or 16, wherein the locking member defines a first gap associated with the unlock indicator, the locking member further defines a second gap associated with the lock indicator, and the locking member is configured to translate laterally within the probe body to move the first gap and the second gap relative to respective openings in a pair of openings in the probe body.

18. The probe according to claim 15 or 16, wherein the probe lock further includes a magnet configured to move in conjunction with the locking member to convey the position of the locking member to the housing.

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